microsoft
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snmalloc
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snmalloc/CMakeLists.txt

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CMake
Исходник Обычный вид История

CMake cleanup. (#384) Modernise and tidy the CMake a bit: - Use generator expressions for a lot of conditionals so that things are more reliable with multi-config generators (and less verbose). - Remove C as a needed language. None of the code was C but we were using C to test if headers worked. This was fragile because a build with `CMAKE_CXX_COMPILER` set might have checked things compiled with the system C compiler and then failed when the specified C++ compiler used different headers. - Rename the `BACKTRACE_HEADER` macro to `SNMALLOC_BACKTRACE_HEADER`. This is exposed into code that consumes snmalloc and so should be 'namespaced' (to the degree that's possible with C macros). - Clean up the options and use dependent options to hide options that are not always relevant. - Use functions instead of macros for better variable scoping. - Factor out some duplicated bits into functions. - Update to the latest way of telling CMake to use C++17 or C++20. - Migrate everything that's setting global properties to setting only per-target properties. - Link with -nostdlib++ if it's available. If it isn't, fall back to enabling the C language and linking with the C compiler. - Make the per-test log messages verbose outputs. These kept scrolling important messages off the top of the screen for me. - Make building as a header-only library a public option. - Add install targets that install all of the headers and provide a config option. This works with the header-only configuration for integration with things like vcpkg. - Fix a missing `#endif` in the `malloc_useable_size` check. This was failing co compile on all platforms because of the missing `#endif`. - Bump the minimum version to 3.14 so that we have access to target_link_options. This is necessary to use generator expressions for linker flags. - Make the linker error if the shim libraries depend on symbols that are not defined in the explicitly-provided libraries. - Make the old-Ubuntu CI jobs use C++17 explicitly (previously CMake was silently ignoring the fact that the compiler didn't support C++20) - Fix errors found by the more aggressive linking mode. With these changes, it's now possible to install snmalloc and then, in another project, do something like this: ```cmake find_package(snmalloc CONFIG REQUIRED) target_link_libraries(t1 snmalloc::snmalloc) target_link_libraries(t2 snmalloc::snmallocshim-static) ``` In this example, `t1` gets all of the compile flags necessary to include snmalloc headers for its build configuration. `t2` is additionally linked to the snmalloc static shim library.
2021-09-03 13:31:05 +03:00
cmake_minimum_required(VERSION 3.14)
project(snmalloc CXX)
Initial commit of snmalloc History squashed from internal development. Internal history has commit hash: e27a0e485c44a5003a802de2661ce3b21e120316
2019-01-15 17:17:55 +03:00
Default build to Release. (#177)
2020-05-06 20:24:45 +03:00
if (NOT CMAKE_BUILD_TYPE)
message(STATUS "No build type selected, default to: Release")
set(CMAKE_BUILD_TYPE "Release")
endif()
CI for both arms (#151) * Add another ARM
2020-03-20 12:17:38 +03:00
include(CheckCXXCompilerFlag)
CMake cleanup. (#384) Modernise and tidy the CMake a bit: - Use generator expressions for a lot of conditionals so that things are more reliable with multi-config generators (and less verbose). - Remove C as a needed language. None of the code was C but we were using C to test if headers worked. This was fragile because a build with `CMAKE_CXX_COMPILER` set might have checked things compiled with the system C compiler and then failed when the specified C++ compiler used different headers. - Rename the `BACKTRACE_HEADER` macro to `SNMALLOC_BACKTRACE_HEADER`. This is exposed into code that consumes snmalloc and so should be 'namespaced' (to the degree that's possible with C macros). - Clean up the options and use dependent options to hide options that are not always relevant. - Use functions instead of macros for better variable scoping. - Factor out some duplicated bits into functions. - Update to the latest way of telling CMake to use C++17 or C++20. - Migrate everything that's setting global properties to setting only per-target properties. - Link with -nostdlib++ if it's available. If it isn't, fall back to enabling the C language and linking with the C compiler. - Make the per-test log messages verbose outputs. These kept scrolling important messages off the top of the screen for me. - Make building as a header-only library a public option. - Add install targets that install all of the headers and provide a config option. This works with the header-only configuration for integration with things like vcpkg. - Fix a missing `#endif` in the `malloc_useable_size` check. This was failing co compile on all platforms because of the missing `#endif`. - Bump the minimum version to 3.14 so that we have access to target_link_options. This is necessary to use generator expressions for linker flags. - Make the linker error if the shim libraries depend on symbols that are not defined in the explicitly-provided libraries. - Make the old-Ubuntu CI jobs use C++17 explicitly (previously CMake was silently ignoring the fact that the compiler didn't support C++20) - Fix errors found by the more aggressive linking mode. With these changes, it's now possible to install snmalloc and then, in another project, do something like this: ```cmake find_package(snmalloc CONFIG REQUIRED) target_link_libraries(t1 snmalloc::snmalloc) target_link_libraries(t2 snmalloc::snmallocshim-static) ``` In this example, `t1` gets all of the compile flags necessary to include snmalloc headers for its build configuration. `t2` is additionally linked to the snmalloc static shim library.
2021-09-03 13:31:05 +03:00
include(CheckCXXSourceCompiles)
include(CMakeDependentOption)
CI for both arms (#151) * Add another ARM
2020-03-20 12:17:38 +03:00
CMake cleanup. (#384) Modernise and tidy the CMake a bit: - Use generator expressions for a lot of conditionals so that things are more reliable with multi-config generators (and less verbose). - Remove C as a needed language. None of the code was C but we were using C to test if headers worked. This was fragile because a build with `CMAKE_CXX_COMPILER` set might have checked things compiled with the system C compiler and then failed when the specified C++ compiler used different headers. - Rename the `BACKTRACE_HEADER` macro to `SNMALLOC_BACKTRACE_HEADER`. This is exposed into code that consumes snmalloc and so should be 'namespaced' (to the degree that's possible with C macros). - Clean up the options and use dependent options to hide options that are not always relevant. - Use functions instead of macros for better variable scoping. - Factor out some duplicated bits into functions. - Update to the latest way of telling CMake to use C++17 or C++20. - Migrate everything that's setting global properties to setting only per-target properties. - Link with -nostdlib++ if it's available. If it isn't, fall back to enabling the C language and linking with the C compiler. - Make the per-test log messages verbose outputs. These kept scrolling important messages off the top of the screen for me. - Make building as a header-only library a public option. - Add install targets that install all of the headers and provide a config option. This works with the header-only configuration for integration with things like vcpkg. - Fix a missing `#endif` in the `malloc_useable_size` check. This was failing co compile on all platforms because of the missing `#endif`. - Bump the minimum version to 3.14 so that we have access to target_link_options. This is necessary to use generator expressions for linker flags. - Make the linker error if the shim libraries depend on symbols that are not defined in the explicitly-provided libraries. - Make the old-Ubuntu CI jobs use C++17 explicitly (previously CMake was silently ignoring the fact that the compiler didn't support C++20) - Fix errors found by the more aggressive linking mode. With these changes, it's now possible to install snmalloc and then, in another project, do something like this: ```cmake find_package(snmalloc CONFIG REQUIRED) target_link_libraries(t1 snmalloc::snmalloc) target_link_libraries(t2 snmalloc::snmallocshim-static) ``` In this example, `t1` gets all of the compile flags necessary to include snmalloc headers for its build configuration. `t2` is additionally linked to the snmalloc static shim library.
2021-09-03 13:31:05 +03:00
option(SNMALLOC_HEADER_ONLY_LIBRARY "Use snmalloc has a header-only library" OFF)
# Options that apply globally
Initial commit of snmalloc History squashed from internal development. Internal history has commit hash: e27a0e485c44a5003a802de2661ce3b21e120316
2019-01-15 17:17:55 +03:00
option(USE_SNMALLOC_STATS "Track allocation stats" OFF)
Changed abort behaviour for Windows CI.
2019-08-13 17:37:54 +03:00
option(SNMALLOC_CI_BUILD "Disable features not sensible for CI" OFF)
Workaround for QEMU behaviour. (#147) * Fixes for ARM * Workaround for QEMU behaviour.
2020-03-19 15:37:44 +03:00
option(SNMALLOC_QEMU_WORKAROUND "Disable using madvise(DONT_NEED) to zero memory on Linux" Off)
Major refactor of snmalloc (#343) # Pagemap The Pagemap now stores all the meta-data for the object allocation. The meta-data in the pagemap is effectively a triple of the sizeclass, the remote allocator, and a pointer to a 64 byte block of meta-data for this chunk of memory. By storing the pointer to a block, it allows the pagemap to handle multiple slab sizes without branching on the fast path. There is one entry in the pagemap per 16KiB of address space, but by using the same entry in the pagemap for 4 adjacent entries, then we can treat a 64KiB range can be treated as a single slab of allocations. This change also means there is almost no capability amplification required by the implementation on CHERI for finding meta-data. The only amplification is required, when we change the way a chunk is used to a size of object allocation. # Backend There is a second major aspect of the refactor that there is now a narrow API that abstracts the Pagemap, PAL and address space management. This should better enable the compartmentalisation and makes it easier to produce alternative backends for various research directions. This is a template parameter that can be used to specialised by the front-end in different ways. # Thread local state The thread local state has been refactored into two components, one (called 'localalloc') that is stored directly in the TLS and is constant initialised, and one that is allocated in the address space (called 'coreallloc') which is lazily created and pooled. # Difference This removes Superslabs/Medium slabs as there meta-data is now part of the pagemap.
2021-07-12 17:53:36 +03:00
option(SNMALLOC_USE_CXX17 "Build as C++17 for legacy support." OFF)
export netbsd's reallocarr proposal. (#433) * export netbsd's reallocarr proposal. acts subtly differently from reallocarray, returns an error code and first argument as receiver. * not export by default * ci tests * apply suggestions * doc addition * Apply suggestions from code review Co-authored-by: Matthew Parkinson <mjp41@users.noreply.github.com>
2021-12-02 17:49:32 +03:00
option(SNMALLOC_NO_REALLOCARRAY "Build without reallocarray exported" ON)
option(SNMALLOC_NO_REALLOCARR "Build without reallocarr exported" ON)
CMake cleanup. (#384) Modernise and tidy the CMake a bit: - Use generator expressions for a lot of conditionals so that things are more reliable with multi-config generators (and less verbose). - Remove C as a needed language. None of the code was C but we were using C to test if headers worked. This was fragile because a build with `CMAKE_CXX_COMPILER` set might have checked things compiled with the system C compiler and then failed when the specified C++ compiler used different headers. - Rename the `BACKTRACE_HEADER` macro to `SNMALLOC_BACKTRACE_HEADER`. This is exposed into code that consumes snmalloc and so should be 'namespaced' (to the degree that's possible with C macros). - Clean up the options and use dependent options to hide options that are not always relevant. - Use functions instead of macros for better variable scoping. - Factor out some duplicated bits into functions. - Update to the latest way of telling CMake to use C++17 or C++20. - Migrate everything that's setting global properties to setting only per-target properties. - Link with -nostdlib++ if it's available. If it isn't, fall back to enabling the C language and linking with the C compiler. - Make the per-test log messages verbose outputs. These kept scrolling important messages off the top of the screen for me. - Make building as a header-only library a public option. - Add install targets that install all of the headers and provide a config option. This works with the header-only configuration for integration with things like vcpkg. - Fix a missing `#endif` in the `malloc_useable_size` check. This was failing co compile on all platforms because of the missing `#endif`. - Bump the minimum version to 3.14 so that we have access to target_link_options. This is necessary to use generator expressions for linker flags. - Make the linker error if the shim libraries depend on symbols that are not defined in the explicitly-provided libraries. - Make the old-Ubuntu CI jobs use C++17 explicitly (previously CMake was silently ignoring the fact that the compiler didn't support C++20) - Fix errors found by the more aggressive linking mode. With these changes, it's now possible to install snmalloc and then, in another project, do something like this: ```cmake find_package(snmalloc CONFIG REQUIRED) target_link_libraries(t1 snmalloc::snmalloc) target_link_libraries(t2 snmalloc::snmallocshim-static) ``` In this example, `t1` gets all of the compile flags necessary to include snmalloc headers for its build configuration. `t2` is additionally linked to the snmalloc static shim library.
2021-09-03 13:31:05 +03:00
# Options that apply only if we're not building the header-only library
cmake_dependent_option(SNMALLOC_RUST_SUPPORT "Build static library for rust" OFF "NOT SNMALLOC_HEADER_ONLY_LIBRARY" OFF)
cmake_dependent_option(SNMALLOC_STATIC_LIBRARY "Build static libraries" ON "NOT SNMALLOC_HEADER_ONLY_LIBRARY" OFF)
Add memcpy with bounds checks. The memcpy implementation is not completely stupid but is almost certainly not as good as a carefully tuned and optimised one. Building snmalloc with FreeBSD's libc memcpy + jemalloc and with this, each 10 times, does not show a statistically significant performance difference at 95% confidence. The snmalloc version has very slightly lower median and worst-case times. This is in no way a sensible benchmark, but it serves as a smoke test for significant performance regressions. The CI self-host job now uses the checked memcpy. This also fixes an off-by-one error in the external bounds. This is triggered by ninja, so we will see breakage in CI if it is reintroduced. In debug builds, we provide a verbose error containing the address of the allocation, the base and bounds of the allocation, and a backtrace. The backtrace was broken by the CI cleanup moving the BACKTRACE_HEADER macro into the SNMALLOC_ namespace. This is also fixed. The test involves hijacking `abort`, which doesn't work everywhere. It also requires `backtrace` to work in configurations where stack traces are enabled. This is disabled in QEMU because `backtrace` appears to crash reliably in QEMU user mode. For now, in the -checks build configurations, we are hitting a slow path in the pagemap on accesses so that the pages that are `PROT_NONE` don't cause crashes. These need to be made read-only, but this requires a PAL change.
2021-08-10 13:36:53 +03:00
cmake_dependent_option(SNMALLOC_MEMCPY_BOUNDS "Perform bounds checks on memcpy with heap objects" OFF "NOT SNMALLOC_HEADER_ONLY_LIBRARY" OFF)
cmake_dependent_option(SNMALLOC_CHECK_LOADS "Perform bounds checks on the source argument to memcpy with heap objects" OFF "SNMALLOC_MEMCPY_BOUNDS" OFF)
CMake cleanup. (#384) Modernise and tidy the CMake a bit: - Use generator expressions for a lot of conditionals so that things are more reliable with multi-config generators (and less verbose). - Remove C as a needed language. None of the code was C but we were using C to test if headers worked. This was fragile because a build with `CMAKE_CXX_COMPILER` set might have checked things compiled with the system C compiler and then failed when the specified C++ compiler used different headers. - Rename the `BACKTRACE_HEADER` macro to `SNMALLOC_BACKTRACE_HEADER`. This is exposed into code that consumes snmalloc and so should be 'namespaced' (to the degree that's possible with C macros). - Clean up the options and use dependent options to hide options that are not always relevant. - Use functions instead of macros for better variable scoping. - Factor out some duplicated bits into functions. - Update to the latest way of telling CMake to use C++17 or C++20. - Migrate everything that's setting global properties to setting only per-target properties. - Link with -nostdlib++ if it's available. If it isn't, fall back to enabling the C language and linking with the C compiler. - Make the per-test log messages verbose outputs. These kept scrolling important messages off the top of the screen for me. - Make building as a header-only library a public option. - Add install targets that install all of the headers and provide a config option. This works with the header-only configuration for integration with things like vcpkg. - Fix a missing `#endif` in the `malloc_useable_size` check. This was failing co compile on all platforms because of the missing `#endif`. - Bump the minimum version to 3.14 so that we have access to target_link_options. This is necessary to use generator expressions for linker flags. - Make the linker error if the shim libraries depend on symbols that are not defined in the explicitly-provided libraries. - Make the old-Ubuntu CI jobs use C++17 explicitly (previously CMake was silently ignoring the fact that the compiler didn't support C++20) - Fix errors found by the more aggressive linking mode. With these changes, it's now possible to install snmalloc and then, in another project, do something like this: ```cmake find_package(snmalloc CONFIG REQUIRED) target_link_libraries(t1 snmalloc::snmalloc) target_link_libraries(t2 snmalloc::snmallocshim-static) ``` In this example, `t1` gets all of the compile flags necessary to include snmalloc headers for its build configuration. `t2` is additionally linked to the snmalloc static shim library.
2021-09-03 13:31:05 +03:00
cmake_dependent_option(SNMALLOC_OPTIMISE_FOR_CURRENT_MACHINE "Compile for current machine architecture" Off "NOT SNMALLOC_HEADER_ONLY_LIBRARY" OFF)
if (NOT SNMALLOC_HEADER_ONLY_LIBRARY)
# Pick a sensible default for the thread cleanup mechanism
if (${CMAKE_SYSTEM_NAME} STREQUAL FreeBSD)
set(SNMALLOC_CLEANUP_DEFAULT THREAD_CLEANUP)
elseif (UNIX AND NOT APPLE)
set(SNMALLOC_CLEANUP_DEFAULT PTHREAD_DESTRUCTORS)
else ()
set(SNMALLOC_CLEANUP_DEFAULT CXX11_DESTRUCTORS)
endif()
# Specify the thread cleanup mechanism to use.
set(SNMALLOC_CLEANUP ${SNMALLOC_CLEANUP_DEFAULT} CACHE STRING "The mechanism that snmalloc will use for thread destructors. Valid options are: CXX11_DESTRUCTORS (use C++11 destructors, may depend on the C++ runtime library), PTHREAD_DESTRUCTORS (use pthreads, may interact badly with C++ on some platforms, such as macOS) THREAD_CLEANUP (depend on an explicit call to _malloc_thread_cleanup on thread exit, supported by FreeBSD's threading implementation and possibly elsewhere)")
set_property(CACHE SNMALLOC_CLEANUP PROPERTY STRINGS THREAD_CLEANUP PTHREAD_DESTRUCTORS CXX11_DESTRUCTORS)
set(SNMALLOC_STATIC_LIBRARY_PREFIX "sn_" CACHE STRING "Static library function prefix")
else ()
unset(SNMALLOC_STATIC_LIBRARY_PREFIX CACHE)
unset(SNMALLOC_CLEANUP CACHE)
endif ()
if (NOT SNMALLOC_CLEANUP STREQUAL CXX11_DESTRUCTORS)
set(CMAKE_CXX_IMPLICIT_LINK_LIBRARIES "")
endif()
# If CheckLinkerFlag doesn't exist then provide a dummy implementation that
# always fails. The fallback can be removed when we move to CMake 3.18 as the
# baseline.
include(CheckLinkerFlag OPTIONAL RESULT_VARIABLE CHECK_LINKER_FLAG)
if (NOT CHECK_LINKER_FLAG)
function(check_linker_flag)
endfunction()
endif ()
if (NOT MSVC AND NOT (SNMALLOC_CLEANUP STREQUAL CXX11_DESTRUCTORS))
# If the target compiler doesn't support -nostdlib++ then we must enable C at
# the global scope for the fallbacks to work.
check_linker_flag(CXX "-nostdlib++" SNMALLOC_LINKER_SUPPORT_NOSTDLIBXX)
if (NOT SNMALLOC_LINKER_SUPPORT_NOSTDLIBXX AND NOT SNMALLOC_HEADER_ONLY_LIBRARY)
enable_language(C)
endif()
endif()
# Define a generator expression for things that will be enabled in either CI
# builds or debug mode.
set(ci_or_debug "$<OR:$<BOOL:${SNMALLOC_CI_BUILD}>,$<CONFIG:Debug>>")
Place the next pointer at a different place on every object. This limits the collision in cache buckets, especially for larger objects.
2019-02-12 22:08:31 +03:00
Fix the sandbox use case and add a test. (#269) Summary of changes: - Add a new PAL that doesn't allocate memory, which can be used with a memory provider that is pre-initialised with a range of memory. - Add a `NoAllocation` PAL property so that the methods on a PAL that doesn't support dynamically reserving address space will never be called and therefore don't need to be implemented. - Slightly refactor the memory provider class so that it has a narrower interface with LargeAlloc and is easier to proxy. - Allow the address space manager and the memory provider to be initialised with a range of memory. This may eventually also remove the need for (or, at least, simplify) the Open Enclave PAL. This commit also ends up with a few other cleanups: - The `malloc_useable_size` CMake test that checks whether the parameter is const qualified was failing on FreeBSD where this function is declared in `malloc_np.h` but where including `malloc.h` raises an error. This should now be more robust. - The BSD aligned PAL inherited from the BSD PAL, which does not expose aligned allocation. This meant that it exposed both the aligned and non-aligned allocation interfaces and so happily accepted incorrect `constexpr` if blocks that expected one or the other but accidentally required both to exist. The unaligned function is now deleted so the same failures that appear in CI should appear locally for anyone using this PAL.
2021-01-11 17:06:51 +03:00
# malloc.h will error if you include it on FreeBSD, so this test must not
# unconditionally include it.
CMake cleanup. (#384) Modernise and tidy the CMake a bit: - Use generator expressions for a lot of conditionals so that things are more reliable with multi-config generators (and less verbose). - Remove C as a needed language. None of the code was C but we were using C to test if headers worked. This was fragile because a build with `CMAKE_CXX_COMPILER` set might have checked things compiled with the system C compiler and then failed when the specified C++ compiler used different headers. - Rename the `BACKTRACE_HEADER` macro to `SNMALLOC_BACKTRACE_HEADER`. This is exposed into code that consumes snmalloc and so should be 'namespaced' (to the degree that's possible with C macros). - Clean up the options and use dependent options to hide options that are not always relevant. - Use functions instead of macros for better variable scoping. - Factor out some duplicated bits into functions. - Update to the latest way of telling CMake to use C++17 or C++20. - Migrate everything that's setting global properties to setting only per-target properties. - Link with -nostdlib++ if it's available. If it isn't, fall back to enabling the C language and linking with the C compiler. - Make the per-test log messages verbose outputs. These kept scrolling important messages off the top of the screen for me. - Make building as a header-only library a public option. - Add install targets that install all of the headers and provide a config option. This works with the header-only configuration for integration with things like vcpkg. - Fix a missing `#endif` in the `malloc_useable_size` check. This was failing co compile on all platforms because of the missing `#endif`. - Bump the minimum version to 3.14 so that we have access to target_link_options. This is necessary to use generator expressions for linker flags. - Make the linker error if the shim libraries depend on symbols that are not defined in the explicitly-provided libraries. - Make the old-Ubuntu CI jobs use C++17 explicitly (previously CMake was silently ignoring the fact that the compiler didn't support C++20) - Fix errors found by the more aggressive linking mode. With these changes, it's now possible to install snmalloc and then, in another project, do something like this: ```cmake find_package(snmalloc CONFIG REQUIRED) target_link_libraries(t1 snmalloc::snmalloc) target_link_libraries(t2 snmalloc::snmallocshim-static) ``` In this example, `t1` gets all of the compile flags necessary to include snmalloc headers for its build configuration. `t2` is additionally linked to the snmalloc static shim library.
2021-09-03 13:31:05 +03:00
CHECK_CXX_SOURCE_COMPILES("
Fix the sandbox use case and add a test. (#269) Summary of changes: - Add a new PAL that doesn't allocate memory, which can be used with a memory provider that is pre-initialised with a range of memory. - Add a `NoAllocation` PAL property so that the methods on a PAL that doesn't support dynamically reserving address space will never be called and therefore don't need to be implemented. - Slightly refactor the memory provider class so that it has a narrower interface with LargeAlloc and is easier to proxy. - Allow the address space manager and the memory provider to be initialised with a range of memory. This may eventually also remove the need for (or, at least, simplify) the Open Enclave PAL. This commit also ends up with a few other cleanups: - The `malloc_useable_size` CMake test that checks whether the parameter is const qualified was failing on FreeBSD where this function is declared in `malloc_np.h` but where including `malloc.h` raises an error. This should now be more robust. - The BSD aligned PAL inherited from the BSD PAL, which does not expose aligned allocation. This meant that it exposed both the aligned and non-aligned allocation interfaces and so happily accepted incorrect `constexpr` if blocks that expected one or the other but accidentally required both to exist. The unaligned function is now deleted so the same failures that appear in CI should appear locally for anyone using this PAL.
2021-01-11 17:06:51 +03:00
#if __has_include(<malloc_np.h>)
#include <malloc_np.h>
CMake cleanup. (#384) Modernise and tidy the CMake a bit: - Use generator expressions for a lot of conditionals so that things are more reliable with multi-config generators (and less verbose). - Remove C as a needed language. None of the code was C but we were using C to test if headers worked. This was fragile because a build with `CMAKE_CXX_COMPILER` set might have checked things compiled with the system C compiler and then failed when the specified C++ compiler used different headers. - Rename the `BACKTRACE_HEADER` macro to `SNMALLOC_BACKTRACE_HEADER`. This is exposed into code that consumes snmalloc and so should be 'namespaced' (to the degree that's possible with C macros). - Clean up the options and use dependent options to hide options that are not always relevant. - Use functions instead of macros for better variable scoping. - Factor out some duplicated bits into functions. - Update to the latest way of telling CMake to use C++17 or C++20. - Migrate everything that's setting global properties to setting only per-target properties. - Link with -nostdlib++ if it's available. If it isn't, fall back to enabling the C language and linking with the C compiler. - Make the per-test log messages verbose outputs. These kept scrolling important messages off the top of the screen for me. - Make building as a header-only library a public option. - Add install targets that install all of the headers and provide a config option. This works with the header-only configuration for integration with things like vcpkg. - Fix a missing `#endif` in the `malloc_useable_size` check. This was failing co compile on all platforms because of the missing `#endif`. - Bump the minimum version to 3.14 so that we have access to target_link_options. This is necessary to use generator expressions for linker flags. - Make the linker error if the shim libraries depend on symbols that are not defined in the explicitly-provided libraries. - Make the old-Ubuntu CI jobs use C++17 explicitly (previously CMake was silently ignoring the fact that the compiler didn't support C++20) - Fix errors found by the more aggressive linking mode. With these changes, it's now possible to install snmalloc and then, in another project, do something like this: ```cmake find_package(snmalloc CONFIG REQUIRED) target_link_libraries(t1 snmalloc::snmalloc) target_link_libraries(t2 snmalloc::snmallocshim-static) ``` In this example, `t1` gets all of the compile flags necessary to include snmalloc headers for its build configuration. `t2` is additionally linked to the snmalloc static shim library.
2021-09-03 13:31:05 +03:00
#endif
Fix the sandbox use case and add a test. (#269) Summary of changes: - Add a new PAL that doesn't allocate memory, which can be used with a memory provider that is pre-initialised with a range of memory. - Add a `NoAllocation` PAL property so that the methods on a PAL that doesn't support dynamically reserving address space will never be called and therefore don't need to be implemented. - Slightly refactor the memory provider class so that it has a narrower interface with LargeAlloc and is easier to proxy. - Allow the address space manager and the memory provider to be initialised with a range of memory. This may eventually also remove the need for (or, at least, simplify) the Open Enclave PAL. This commit also ends up with a few other cleanups: - The `malloc_useable_size` CMake test that checks whether the parameter is const qualified was failing on FreeBSD where this function is declared in `malloc_np.h` but where including `malloc.h` raises an error. This should now be more robust. - The BSD aligned PAL inherited from the BSD PAL, which does not expose aligned allocation. This meant that it exposed both the aligned and non-aligned allocation interfaces and so happily accepted incorrect `constexpr` if blocks that expected one or the other but accidentally required both to exist. The unaligned function is now deleted so the same failures that appear in CI should appear locally for anyone using this PAL.
2021-01-11 17:06:51 +03:00
#if __has_include(<malloc/malloc.h>)
#include <malloc/malloc.h>
#else
add android support (#171) * adjust for android * update docs * add const qualifier to `alloc_size` * check const qualifier in cmake
2020-04-18 09:58:13 +03:00
#include <malloc.h>
Fix the sandbox use case and add a test. (#269) Summary of changes: - Add a new PAL that doesn't allocate memory, which can be used with a memory provider that is pre-initialised with a range of memory. - Add a `NoAllocation` PAL property so that the methods on a PAL that doesn't support dynamically reserving address space will never be called and therefore don't need to be implemented. - Slightly refactor the memory provider class so that it has a narrower interface with LargeAlloc and is easier to proxy. - Allow the address space manager and the memory provider to be initialised with a range of memory. This may eventually also remove the need for (or, at least, simplify) the Open Enclave PAL. This commit also ends up with a few other cleanups: - The `malloc_useable_size` CMake test that checks whether the parameter is const qualified was failing on FreeBSD where this function is declared in `malloc_np.h` but where including `malloc.h` raises an error. This should now be more robust. - The BSD aligned PAL inherited from the BSD PAL, which does not expose aligned allocation. This meant that it exposed both the aligned and non-aligned allocation interfaces and so happily accepted incorrect `constexpr` if blocks that expected one or the other but accidentally required both to exist. The unaligned function is now deleted so the same failures that appear in CI should appear locally for anyone using this PAL.
2021-01-11 17:06:51 +03:00
#endif
add android support (#171) * adjust for android * update docs * add const qualifier to `alloc_size` * check const qualifier in cmake
2020-04-18 09:58:13 +03:00
size_t malloc_usable_size(const void* ptr) { return 0; }
int main() { return 0; }
" CONST_QUALIFIED_MALLOC_USABLE_SIZE)
CMake cleanup. (#384) Modernise and tidy the CMake a bit: - Use generator expressions for a lot of conditionals so that things are more reliable with multi-config generators (and less verbose). - Remove C as a needed language. None of the code was C but we were using C to test if headers worked. This was fragile because a build with `CMAKE_CXX_COMPILER` set might have checked things compiled with the system C compiler and then failed when the specified C++ compiler used different headers. - Rename the `BACKTRACE_HEADER` macro to `SNMALLOC_BACKTRACE_HEADER`. This is exposed into code that consumes snmalloc and so should be 'namespaced' (to the degree that's possible with C macros). - Clean up the options and use dependent options to hide options that are not always relevant. - Use functions instead of macros for better variable scoping. - Factor out some duplicated bits into functions. - Update to the latest way of telling CMake to use C++17 or C++20. - Migrate everything that's setting global properties to setting only per-target properties. - Link with -nostdlib++ if it's available. If it isn't, fall back to enabling the C language and linking with the C compiler. - Make the per-test log messages verbose outputs. These kept scrolling important messages off the top of the screen for me. - Make building as a header-only library a public option. - Add install targets that install all of the headers and provide a config option. This works with the header-only configuration for integration with things like vcpkg. - Fix a missing `#endif` in the `malloc_useable_size` check. This was failing co compile on all platforms because of the missing `#endif`. - Bump the minimum version to 3.14 so that we have access to target_link_options. This is necessary to use generator expressions for linker flags. - Make the linker error if the shim libraries depend on symbols that are not defined in the explicitly-provided libraries. - Make the old-Ubuntu CI jobs use C++17 explicitly (previously CMake was silently ignoring the fact that the compiler didn't support C++20) - Fix errors found by the more aggressive linking mode. With these changes, it's now possible to install snmalloc and then, in another project, do something like this: ```cmake find_package(snmalloc CONFIG REQUIRED) target_link_libraries(t1 snmalloc::snmalloc) target_link_libraries(t2 snmalloc::snmallocshim-static) ``` In this example, `t1` gets all of the compile flags necessary to include snmalloc headers for its build configuration. `t2` is additionally linked to the snmalloc static shim library.
2021-09-03 13:31:05 +03:00
# Some libcs might not have getentropy, e.g. it appeared in glibc 2.25
Fix building on old libc systems without `getentropy` (#329) Signed-off-by: Matthias Wahl <mwahl@wayfair.com>
2021-05-25 18:46:06 +03:00
# so we need to fallback if we cannot compile this
CMake cleanup. (#384) Modernise and tidy the CMake a bit: - Use generator expressions for a lot of conditionals so that things are more reliable with multi-config generators (and less verbose). - Remove C as a needed language. None of the code was C but we were using C to test if headers worked. This was fragile because a build with `CMAKE_CXX_COMPILER` set might have checked things compiled with the system C compiler and then failed when the specified C++ compiler used different headers. - Rename the `BACKTRACE_HEADER` macro to `SNMALLOC_BACKTRACE_HEADER`. This is exposed into code that consumes snmalloc and so should be 'namespaced' (to the degree that's possible with C macros). - Clean up the options and use dependent options to hide options that are not always relevant. - Use functions instead of macros for better variable scoping. - Factor out some duplicated bits into functions. - Update to the latest way of telling CMake to use C++17 or C++20. - Migrate everything that's setting global properties to setting only per-target properties. - Link with -nostdlib++ if it's available. If it isn't, fall back to enabling the C language and linking with the C compiler. - Make the per-test log messages verbose outputs. These kept scrolling important messages off the top of the screen for me. - Make building as a header-only library a public option. - Add install targets that install all of the headers and provide a config option. This works with the header-only configuration for integration with things like vcpkg. - Fix a missing `#endif` in the `malloc_useable_size` check. This was failing co compile on all platforms because of the missing `#endif`. - Bump the minimum version to 3.14 so that we have access to target_link_options. This is necessary to use generator expressions for linker flags. - Make the linker error if the shim libraries depend on symbols that are not defined in the explicitly-provided libraries. - Make the old-Ubuntu CI jobs use C++17 explicitly (previously CMake was silently ignoring the fact that the compiler didn't support C++20) - Fix errors found by the more aggressive linking mode. With these changes, it's now possible to install snmalloc and then, in another project, do something like this: ```cmake find_package(snmalloc CONFIG REQUIRED) target_link_libraries(t1 snmalloc::snmalloc) target_link_libraries(t2 snmalloc::snmallocshim-static) ``` In this example, `t1` gets all of the compile flags necessary to include snmalloc headers for its build configuration. `t2` is additionally linked to the snmalloc static shim library.
2021-09-03 13:31:05 +03:00
CHECK_CXX_SOURCE_COMPILES("
Fix building on old libc systems without `getentropy` (#329) Signed-off-by: Matthias Wahl <mwahl@wayfair.com>
2021-05-25 18:46:06 +03:00
#if __has_include(<unistd.h>)
# include <unistd.h>
#endif
#if __has_include(<sys/random.h>)
add SYS_getrandom fallback for posix PAL (#431) * add SYS_getrandom fallback for posix PAL Signed-off-by: SchrodingerZhu <i@zhuyi.fan> * address CR Signed-off-by: SchrodingerZhu <i@zhuyi.fan> * guard and comments Signed-off-by: SchrodingerZhu <i@zhuyi.fan> * more fallback behavior Signed-off-by: SchrodingerZhu <i@zhuyi.fan> * fix random device fd Signed-off-by: SchrodingerZhu <i@zhuyi.fan> * special handling for EAGAIN Signed-off-by: SchrodingerZhu <i@zhuyi.fan>
2021-12-02 13:38:50 +03:00
# include <sys/random.h>
Fix building on old libc systems without `getentropy` (#329) Signed-off-by: Matthias Wahl <mwahl@wayfair.com>
2021-05-25 18:46:06 +03:00
#endif
int main() {
int entropy = 0;
int res = getentropy(&entropy, sizeof(entropy));
return res;
}
" SNMALLOC_PLATFORM_HAS_GETENTROPY)
CMake cleanup. (#384) Modernise and tidy the CMake a bit: - Use generator expressions for a lot of conditionals so that things are more reliable with multi-config generators (and less verbose). - Remove C as a needed language. None of the code was C but we were using C to test if headers worked. This was fragile because a build with `CMAKE_CXX_COMPILER` set might have checked things compiled with the system C compiler and then failed when the specified C++ compiler used different headers. - Rename the `BACKTRACE_HEADER` macro to `SNMALLOC_BACKTRACE_HEADER`. This is exposed into code that consumes snmalloc and so should be 'namespaced' (to the degree that's possible with C macros). - Clean up the options and use dependent options to hide options that are not always relevant. - Use functions instead of macros for better variable scoping. - Factor out some duplicated bits into functions. - Update to the latest way of telling CMake to use C++17 or C++20. - Migrate everything that's setting global properties to setting only per-target properties. - Link with -nostdlib++ if it's available. If it isn't, fall back to enabling the C language and linking with the C compiler. - Make the per-test log messages verbose outputs. These kept scrolling important messages off the top of the screen for me. - Make building as a header-only library a public option. - Add install targets that install all of the headers and provide a config option. This works with the header-only configuration for integration with things like vcpkg. - Fix a missing `#endif` in the `malloc_useable_size` check. This was failing co compile on all platforms because of the missing `#endif`. - Bump the minimum version to 3.14 so that we have access to target_link_options. This is necessary to use generator expressions for linker flags. - Make the linker error if the shim libraries depend on symbols that are not defined in the explicitly-provided libraries. - Make the old-Ubuntu CI jobs use C++17 explicitly (previously CMake was silently ignoring the fact that the compiler didn't support C++20) - Fix errors found by the more aggressive linking mode. With these changes, it's now possible to install snmalloc and then, in another project, do something like this: ```cmake find_package(snmalloc CONFIG REQUIRED) target_link_libraries(t1 snmalloc::snmalloc) target_link_libraries(t2 snmalloc::snmallocshim-static) ``` In this example, `t1` gets all of the compile flags necessary to include snmalloc headers for its build configuration. `t2` is additionally linked to the snmalloc static shim library.
2021-09-03 13:31:05 +03:00
# Provide as function so other projects can reuse
# FIXME: This modifies some variables that may or may not be the ones that
# provide flags and so is broken by design. It should be removed once Verona
# no longer uses it.
function(warnings_high)
CMake Header-Only Target (#46) Make header only library target. Use the CMake INTERFACE target type to include the build settings for snmalloc in other projects using headers only. Made warnings setting a macro for reuse.
2019-05-09 14:32:32 +03:00
if(MSVC)
# Force to always compile with W4
if(CMAKE_CXX_FLAGS MATCHES "/W[0-4]")
string(REGEX REPLACE "/W[0-4]" "/W4" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
else()
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /W4")
Initial commit of snmalloc History squashed from internal development. Internal history has commit hash: e27a0e485c44a5003a802de2661ce3b21e120316
2019-01-15 17:17:55 +03:00
endif()
Major refactor of snmalloc (#343) # Pagemap The Pagemap now stores all the meta-data for the object allocation. The meta-data in the pagemap is effectively a triple of the sizeclass, the remote allocator, and a pointer to a 64 byte block of meta-data for this chunk of memory. By storing the pointer to a block, it allows the pagemap to handle multiple slab sizes without branching on the fast path. There is one entry in the pagemap per 16KiB of address space, but by using the same entry in the pagemap for 4 adjacent entries, then we can treat a 64KiB range can be treated as a single slab of allocations. This change also means there is almost no capability amplification required by the implementation on CHERI for finding meta-data. The only amplification is required, when we change the way a chunk is used to a size of object allocation. # Backend There is a second major aspect of the refactor that there is now a narrow API that abstracts the Pagemap, PAL and address space management. This should better enable the compartmentalisation and makes it easier to produce alternative backends for various research directions. This is a template parameter that can be used to specialised by the front-end in different ways. # Thread local state The thread local state has been refactored into two components, one (called 'localalloc') that is stored directly in the TLS and is constant initialised, and one that is allocated in the address space (called 'coreallloc') which is lazily created and pooled. # Difference This removes Superslabs/Medium slabs as there meta-data is now part of the pagemap.
2021-07-12 17:53:36 +03:00
# /Wv18 is required for the annotation to force inline a lambda.
CMake Header-Only Target (#46) Make header only library target. Use the CMake INTERFACE target type to include the build settings for snmalloc in other projects using headers only. Made warnings setting a macro for reuse.
2019-05-09 14:32:32 +03:00
add_compile_options(/WX /wd4127 /wd4324 /wd4201)
Use VirtualAlloc2 on Windows. The newer API (Windows 10 and newer) allows the allocator to ask for strongly aligned memory. This is enabled only if the `WINVER` macro is set to target Windows 10 or newer. There is now a CMake option to target older versions of Windows, so we can test both code paths. The Azure Pipelines config now includes a test of the compatibility version. This runs only the release build, because it's mainly there as a sanity check - 99% of the code is the same as the default Windows config.
2019-02-19 15:34:53 +03:00
else()
CMake Header-Only Target (#46) Make header only library target. Use the CMake INTERFACE target type to include the build settings for snmalloc in other projects using headers only. Made warnings setting a macro for reuse.
2019-05-09 14:32:32 +03:00
if (CMAKE_CXX_COMPILER_ID MATCHES "Clang")
Add -Wconversion to clang builds MSVC has strong opinions on implicit conversions as used in CI, while Clang both locally and in CI has weaker opinions. In an effort to avoid subsequent roundtrips through CI, make clang more strict. Adding -Wconversion definitely increases the strength of clang's opinions, apparently to include frowning on some that even MSVC considers OK, so go make explicit the current implicit behavior.
2021-02-24 15:54:14 +03:00
add_compile_options(-Wsign-conversion -Wconversion)
CMake Header-Only Target (#46) Make header only library target. Use the CMake INTERFACE target type to include the build settings for snmalloc in other projects using headers only. Made warnings setting a macro for reuse.
2019-05-09 14:32:32 +03:00
endif ()
-Wundef
2019-07-25 22:06:03 +03:00
add_compile_options(-Wall -Wextra -Werror -Wundef)
Initial commit of snmalloc History squashed from internal development. Internal history has commit hash: e27a0e485c44a5003a802de2661ce3b21e120316
2019-01-15 17:17:55 +03:00
endif()
CMake cleanup. (#384) Modernise and tidy the CMake a bit: - Use generator expressions for a lot of conditionals so that things are more reliable with multi-config generators (and less verbose). - Remove C as a needed language. None of the code was C but we were using C to test if headers worked. This was fragile because a build with `CMAKE_CXX_COMPILER` set might have checked things compiled with the system C compiler and then failed when the specified C++ compiler used different headers. - Rename the `BACKTRACE_HEADER` macro to `SNMALLOC_BACKTRACE_HEADER`. This is exposed into code that consumes snmalloc and so should be 'namespaced' (to the degree that's possible with C macros). - Clean up the options and use dependent options to hide options that are not always relevant. - Use functions instead of macros for better variable scoping. - Factor out some duplicated bits into functions. - Update to the latest way of telling CMake to use C++17 or C++20. - Migrate everything that's setting global properties to setting only per-target properties. - Link with -nostdlib++ if it's available. If it isn't, fall back to enabling the C language and linking with the C compiler. - Make the per-test log messages verbose outputs. These kept scrolling important messages off the top of the screen for me. - Make building as a header-only library a public option. - Add install targets that install all of the headers and provide a config option. This works with the header-only configuration for integration with things like vcpkg. - Fix a missing `#endif` in the `malloc_useable_size` check. This was failing co compile on all platforms because of the missing `#endif`. - Bump the minimum version to 3.14 so that we have access to target_link_options. This is necessary to use generator expressions for linker flags. - Make the linker error if the shim libraries depend on symbols that are not defined in the explicitly-provided libraries. - Make the old-Ubuntu CI jobs use C++17 explicitly (previously CMake was silently ignoring the fact that the compiler didn't support C++20) - Fix errors found by the more aggressive linking mode. With these changes, it's now possible to install snmalloc and then, in another project, do something like this: ```cmake find_package(snmalloc CONFIG REQUIRED) target_link_libraries(t1 snmalloc::snmalloc) target_link_libraries(t2 snmalloc::snmallocshim-static) ``` In this example, `t1` gets all of the compile flags necessary to include snmalloc headers for its build configuration. `t2` is additionally linked to the snmalloc static shim library.
2021-09-03 13:31:05 +03:00
endfunction()
Initial commit of snmalloc History squashed from internal development. Internal history has commit hash: e27a0e485c44a5003a802de2661ce3b21e120316
2019-01-15 17:17:55 +03:00
CMake cleanup. (#384) Modernise and tidy the CMake a bit: - Use generator expressions for a lot of conditionals so that things are more reliable with multi-config generators (and less verbose). - Remove C as a needed language. None of the code was C but we were using C to test if headers worked. This was fragile because a build with `CMAKE_CXX_COMPILER` set might have checked things compiled with the system C compiler and then failed when the specified C++ compiler used different headers. - Rename the `BACKTRACE_HEADER` macro to `SNMALLOC_BACKTRACE_HEADER`. This is exposed into code that consumes snmalloc and so should be 'namespaced' (to the degree that's possible with C macros). - Clean up the options and use dependent options to hide options that are not always relevant. - Use functions instead of macros for better variable scoping. - Factor out some duplicated bits into functions. - Update to the latest way of telling CMake to use C++17 or C++20. - Migrate everything that's setting global properties to setting only per-target properties. - Link with -nostdlib++ if it's available. If it isn't, fall back to enabling the C language and linking with the C compiler. - Make the per-test log messages verbose outputs. These kept scrolling important messages off the top of the screen for me. - Make building as a header-only library a public option. - Add install targets that install all of the headers and provide a config option. This works with the header-only configuration for integration with things like vcpkg. - Fix a missing `#endif` in the `malloc_useable_size` check. This was failing co compile on all platforms because of the missing `#endif`. - Bump the minimum version to 3.14 so that we have access to target_link_options. This is necessary to use generator expressions for linker flags. - Make the linker error if the shim libraries depend on symbols that are not defined in the explicitly-provided libraries. - Make the old-Ubuntu CI jobs use C++17 explicitly (previously CMake was silently ignoring the fact that the compiler didn't support C++20) - Fix errors found by the more aggressive linking mode. With these changes, it's now possible to install snmalloc and then, in another project, do something like this: ```cmake find_package(snmalloc CONFIG REQUIRED) target_link_libraries(t1 snmalloc::snmalloc) target_link_libraries(t2 snmalloc::snmallocshim-static) ``` In this example, `t1` gets all of the compile flags necessary to include snmalloc headers for its build configuration. `t2` is additionally linked to the snmalloc static shim library.
2021-09-03 13:31:05 +03:00
function(clangformat_targets)
Make clangformat a macro to allow sharing.
2019-05-22 15:20:43 +03:00
# The clang-format tool is installed under a variety of different names. Try
Update to use clangformat9 With clangformat9 the AfterCaseLabel is introduced. And this defaults to false, but our code is formatted implicitly with this set to true. PRs to Verona and Snmalloc are being formatted with clangformat9, and this is causing complexity. Let's move forward to clangformat9 in CI.
2020-02-06 12:09:32 +03:00
# to find a sensible one. Only look for versions 9 explicitly - we don't
add SYS_getrandom fallback for posix PAL (#431) * add SYS_getrandom fallback for posix PAL Signed-off-by: SchrodingerZhu <i@zhuyi.fan> * address CR Signed-off-by: SchrodingerZhu <i@zhuyi.fan> * guard and comments Signed-off-by: SchrodingerZhu <i@zhuyi.fan> * more fallback behavior Signed-off-by: SchrodingerZhu <i@zhuyi.fan> * fix random device fd Signed-off-by: SchrodingerZhu <i@zhuyi.fan> * special handling for EAGAIN Signed-off-by: SchrodingerZhu <i@zhuyi.fan>
2021-12-02 13:38:50 +03:00
# know whether our clang-format file will work with newer versions of the
Update to use clangformat9 With clangformat9 the AfterCaseLabel is introduced. And this defaults to false, but our code is formatted implicitly with this set to true. PRs to Verona and Snmalloc are being formatted with clangformat9, and this is causing complexity. Let's move forward to clangformat9 in CI.
2020-02-06 12:09:32 +03:00
# tool. It does not work with older versions as AfterCaseLabel is not supported
# in earlier versions.
Don't use our own loop to find clang-format find_program can do that for us. Additionally that loop was resetting the CLANG_FORMAT every time ninja was run, making it impossible to pass a specific -DCLANG_FORMAT=... to cmake. I've tried version 6 to 8 and formatting remains stable. clang 9 is when it breaks down because of AfterCaseLabel.
2020-01-30 23:31:20 +03:00
find_program(CLANG_FORMAT NAMES
Add missing clang-format name.
2021-01-07 13:43:14 +03:00
clang-format90 clang-format-9)
Make clangformat a macro to allow sharing.
2019-05-22 15:20:43 +03:00
# If we've found a clang-format tool, generate a target for it, otherwise emit
# a warning.
if (${CLANG_FORMAT} STREQUAL "CLANG_FORMAT-NOTFOUND")
message(WARNING "Not generating clangformat target, no clang-format tool found")
else ()
message(STATUS "Generating clangformat target using ${CLANG_FORMAT}")
Major refactor of snmalloc (#343) # Pagemap The Pagemap now stores all the meta-data for the object allocation. The meta-data in the pagemap is effectively a triple of the sizeclass, the remote allocator, and a pointer to a 64 byte block of meta-data for this chunk of memory. By storing the pointer to a block, it allows the pagemap to handle multiple slab sizes without branching on the fast path. There is one entry in the pagemap per 16KiB of address space, but by using the same entry in the pagemap for 4 adjacent entries, then we can treat a 64KiB range can be treated as a single slab of allocations. This change also means there is almost no capability amplification required by the implementation on CHERI for finding meta-data. The only amplification is required, when we change the way a chunk is used to a size of object allocation. # Backend There is a second major aspect of the refactor that there is now a narrow API that abstracts the Pagemap, PAL and address space management. This should better enable the compartmentalisation and makes it easier to produce alternative backends for various research directions. This is a template parameter that can be used to specialised by the front-end in different ways. # Thread local state The thread local state has been refactored into two components, one (called 'localalloc') that is stored directly in the TLS and is constant initialised, and one that is allocated in the address space (called 'coreallloc') which is lazily created and pooled. # Difference This removes Superslabs/Medium slabs as there meta-data is now part of the pagemap.
2021-07-12 17:53:36 +03:00
file(GLOB_RECURSE ALL_SOURCE_FILES CONFIGURE_DEPENDS src/*.cc src/*.h src/*.hh)
Add C++ concept for PAL This will not be used unless the C++ standard version is raised to 20. As concepts and C++20 more generally are quite new, this does not do so. Nevertheless, the use of concepts can improve the local development experience as type mismatches are discovered earlier (at template invocation rather than only during expansion).
2020-09-02 14:41:09 +03:00
# clangformat does not yet understand concepts well; for the moment, don't
# ask it to format them. See https://reviews.llvm.org/D79773
NFC: Add an AAL Concept, too While here, pull out some constants to their own header. Eventually we'll want to match on AalFeatures in the AAL Concept.
2020-11-20 15:56:03 +03:00
list(FILTER ALL_SOURCE_FILES EXCLUDE REGEX "src/[^/]*/[^/]*_concept\.h$")
Make clangformat a macro to allow sharing.
2019-05-22 15:20:43 +03:00
add_custom_target(
clangformat
COMMAND ${CLANG_FORMAT}
-i
${ALL_SOURCE_FILES})
endif()
CMake cleanup. (#384) Modernise and tidy the CMake a bit: - Use generator expressions for a lot of conditionals so that things are more reliable with multi-config generators (and less verbose). - Remove C as a needed language. None of the code was C but we were using C to test if headers worked. This was fragile because a build with `CMAKE_CXX_COMPILER` set might have checked things compiled with the system C compiler and then failed when the specified C++ compiler used different headers. - Rename the `BACKTRACE_HEADER` macro to `SNMALLOC_BACKTRACE_HEADER`. This is exposed into code that consumes snmalloc and so should be 'namespaced' (to the degree that's possible with C macros). - Clean up the options and use dependent options to hide options that are not always relevant. - Use functions instead of macros for better variable scoping. - Factor out some duplicated bits into functions. - Update to the latest way of telling CMake to use C++17 or C++20. - Migrate everything that's setting global properties to setting only per-target properties. - Link with -nostdlib++ if it's available. If it isn't, fall back to enabling the C language and linking with the C compiler. - Make the per-test log messages verbose outputs. These kept scrolling important messages off the top of the screen for me. - Make building as a header-only library a public option. - Add install targets that install all of the headers and provide a config option. This works with the header-only configuration for integration with things like vcpkg. - Fix a missing `#endif` in the `malloc_useable_size` check. This was failing co compile on all platforms because of the missing `#endif`. - Bump the minimum version to 3.14 so that we have access to target_link_options. This is necessary to use generator expressions for linker flags. - Make the linker error if the shim libraries depend on symbols that are not defined in the explicitly-provided libraries. - Make the old-Ubuntu CI jobs use C++17 explicitly (previously CMake was silently ignoring the fact that the compiler didn't support C++20) - Fix errors found by the more aggressive linking mode. With these changes, it's now possible to install snmalloc and then, in another project, do something like this: ```cmake find_package(snmalloc CONFIG REQUIRED) target_link_libraries(t1 snmalloc::snmalloc) target_link_libraries(t2 snmalloc::snmallocshim-static) ``` In this example, `t1` gets all of the compile flags necessary to include snmalloc headers for its build configuration. `t2` is additionally linked to the snmalloc static shim library.
2021-09-03 13:31:05 +03:00
endfunction()
# The main target for snmalloc. This is the exported target for the
# header-only configuration and is used as a dependency for all of the builds
# that compile anything.
add_library(snmalloc INTERFACE)
Make clangformat a macro to allow sharing.
2019-05-22 15:20:43 +03:00
Major refactor of snmalloc (#343) # Pagemap The Pagemap now stores all the meta-data for the object allocation. The meta-data in the pagemap is effectively a triple of the sizeclass, the remote allocator, and a pointer to a 64 byte block of meta-data for this chunk of memory. By storing the pointer to a block, it allows the pagemap to handle multiple slab sizes without branching on the fast path. There is one entry in the pagemap per 16KiB of address space, but by using the same entry in the pagemap for 4 adjacent entries, then we can treat a 64KiB range can be treated as a single slab of allocations. This change also means there is almost no capability amplification required by the implementation on CHERI for finding meta-data. The only amplification is required, when we change the way a chunk is used to a size of object allocation. # Backend There is a second major aspect of the refactor that there is now a narrow API that abstracts the Pagemap, PAL and address space management. This should better enable the compartmentalisation and makes it easier to produce alternative backends for various research directions. This is a template parameter that can be used to specialised by the front-end in different ways. # Thread local state The thread local state has been refactored into two components, one (called 'localalloc') that is stored directly in the TLS and is constant initialised, and one that is allocated in the address space (called 'coreallloc') which is lazily created and pooled. # Difference This removes Superslabs/Medium slabs as there meta-data is now part of the pagemap.
2021-07-12 17:53:36 +03:00
if(SNMALLOC_USE_CXX17)
CMake cleanup. (#384) Modernise and tidy the CMake a bit: - Use generator expressions for a lot of conditionals so that things are more reliable with multi-config generators (and less verbose). - Remove C as a needed language. None of the code was C but we were using C to test if headers worked. This was fragile because a build with `CMAKE_CXX_COMPILER` set might have checked things compiled with the system C compiler and then failed when the specified C++ compiler used different headers. - Rename the `BACKTRACE_HEADER` macro to `SNMALLOC_BACKTRACE_HEADER`. This is exposed into code that consumes snmalloc and so should be 'namespaced' (to the degree that's possible with C macros). - Clean up the options and use dependent options to hide options that are not always relevant. - Use functions instead of macros for better variable scoping. - Factor out some duplicated bits into functions. - Update to the latest way of telling CMake to use C++17 or C++20. - Migrate everything that's setting global properties to setting only per-target properties. - Link with -nostdlib++ if it's available. If it isn't, fall back to enabling the C language and linking with the C compiler. - Make the per-test log messages verbose outputs. These kept scrolling important messages off the top of the screen for me. - Make building as a header-only library a public option. - Add install targets that install all of the headers and provide a config option. This works with the header-only configuration for integration with things like vcpkg. - Fix a missing `#endif` in the `malloc_useable_size` check. This was failing co compile on all platforms because of the missing `#endif`. - Bump the minimum version to 3.14 so that we have access to target_link_options. This is necessary to use generator expressions for linker flags. - Make the linker error if the shim libraries depend on symbols that are not defined in the explicitly-provided libraries. - Make the old-Ubuntu CI jobs use C++17 explicitly (previously CMake was silently ignoring the fact that the compiler didn't support C++20) - Fix errors found by the more aggressive linking mode. With these changes, it's now possible to install snmalloc and then, in another project, do something like this: ```cmake find_package(snmalloc CONFIG REQUIRED) target_link_libraries(t1 snmalloc::snmalloc) target_link_libraries(t2 snmalloc::snmallocshim-static) ``` In this example, `t1` gets all of the compile flags necessary to include snmalloc headers for its build configuration. `t2` is additionally linked to the snmalloc static shim library.
2021-09-03 13:31:05 +03:00
target_compile_definitions(snmalloc INTERFACE -DSNMALLOC_USE_CXX17)
target_compile_features(snmalloc INTERFACE cxx_std_17)
Major refactor of snmalloc (#343) # Pagemap The Pagemap now stores all the meta-data for the object allocation. The meta-data in the pagemap is effectively a triple of the sizeclass, the remote allocator, and a pointer to a 64 byte block of meta-data for this chunk of memory. By storing the pointer to a block, it allows the pagemap to handle multiple slab sizes without branching on the fast path. There is one entry in the pagemap per 16KiB of address space, but by using the same entry in the pagemap for 4 adjacent entries, then we can treat a 64KiB range can be treated as a single slab of allocations. This change also means there is almost no capability amplification required by the implementation on CHERI for finding meta-data. The only amplification is required, when we change the way a chunk is used to a size of object allocation. # Backend There is a second major aspect of the refactor that there is now a narrow API that abstracts the Pagemap, PAL and address space management. This should better enable the compartmentalisation and makes it easier to produce alternative backends for various research directions. This is a template parameter that can be used to specialised by the front-end in different ways. # Thread local state The thread local state has been refactored into two components, one (called 'localalloc') that is stored directly in the TLS and is constant initialised, and one that is allocated in the address space (called 'coreallloc') which is lazily created and pooled. # Difference This removes Superslabs/Medium slabs as there meta-data is now part of the pagemap.
2021-07-12 17:53:36 +03:00
else()
CMake cleanup. (#384) Modernise and tidy the CMake a bit: - Use generator expressions for a lot of conditionals so that things are more reliable with multi-config generators (and less verbose). - Remove C as a needed language. None of the code was C but we were using C to test if headers worked. This was fragile because a build with `CMAKE_CXX_COMPILER` set might have checked things compiled with the system C compiler and then failed when the specified C++ compiler used different headers. - Rename the `BACKTRACE_HEADER` macro to `SNMALLOC_BACKTRACE_HEADER`. This is exposed into code that consumes snmalloc and so should be 'namespaced' (to the degree that's possible with C macros). - Clean up the options and use dependent options to hide options that are not always relevant. - Use functions instead of macros for better variable scoping. - Factor out some duplicated bits into functions. - Update to the latest way of telling CMake to use C++17 or C++20. - Migrate everything that's setting global properties to setting only per-target properties. - Link with -nostdlib++ if it's available. If it isn't, fall back to enabling the C language and linking with the C compiler. - Make the per-test log messages verbose outputs. These kept scrolling important messages off the top of the screen for me. - Make building as a header-only library a public option. - Add install targets that install all of the headers and provide a config option. This works with the header-only configuration for integration with things like vcpkg. - Fix a missing `#endif` in the `malloc_useable_size` check. This was failing co compile on all platforms because of the missing `#endif`. - Bump the minimum version to 3.14 so that we have access to target_link_options. This is necessary to use generator expressions for linker flags. - Make the linker error if the shim libraries depend on symbols that are not defined in the explicitly-provided libraries. - Make the old-Ubuntu CI jobs use C++17 explicitly (previously CMake was silently ignoring the fact that the compiler didn't support C++20) - Fix errors found by the more aggressive linking mode. With these changes, it's now possible to install snmalloc and then, in another project, do something like this: ```cmake find_package(snmalloc CONFIG REQUIRED) target_link_libraries(t1 snmalloc::snmalloc) target_link_libraries(t2 snmalloc::snmallocshim-static) ``` In this example, `t1` gets all of the compile flags necessary to include snmalloc headers for its build configuration. `t2` is additionally linked to the snmalloc static shim library.
2021-09-03 13:31:05 +03:00
target_compile_features(snmalloc INTERFACE cxx_std_20)
Major refactor of snmalloc (#343) # Pagemap The Pagemap now stores all the meta-data for the object allocation. The meta-data in the pagemap is effectively a triple of the sizeclass, the remote allocator, and a pointer to a 64 byte block of meta-data for this chunk of memory. By storing the pointer to a block, it allows the pagemap to handle multiple slab sizes without branching on the fast path. There is one entry in the pagemap per 16KiB of address space, but by using the same entry in the pagemap for 4 adjacent entries, then we can treat a 64KiB range can be treated as a single slab of allocations. This change also means there is almost no capability amplification required by the implementation on CHERI for finding meta-data. The only amplification is required, when we change the way a chunk is used to a size of object allocation. # Backend There is a second major aspect of the refactor that there is now a narrow API that abstracts the Pagemap, PAL and address space management. This should better enable the compartmentalisation and makes it easier to produce alternative backends for various research directions. This is a template parameter that can be used to specialised by the front-end in different ways. # Thread local state The thread local state has been refactored into two components, one (called 'localalloc') that is stored directly in the TLS and is constant initialised, and one that is allocated in the address space (called 'coreallloc') which is lazily created and pooled. # Difference This removes Superslabs/Medium slabs as there meta-data is now part of the pagemap.
2021-07-12 17:53:36 +03:00
endif()
CMake cleanup. (#384) Modernise and tidy the CMake a bit: - Use generator expressions for a lot of conditionals so that things are more reliable with multi-config generators (and less verbose). - Remove C as a needed language. None of the code was C but we were using C to test if headers worked. This was fragile because a build with `CMAKE_CXX_COMPILER` set might have checked things compiled with the system C compiler and then failed when the specified C++ compiler used different headers. - Rename the `BACKTRACE_HEADER` macro to `SNMALLOC_BACKTRACE_HEADER`. This is exposed into code that consumes snmalloc and so should be 'namespaced' (to the degree that's possible with C macros). - Clean up the options and use dependent options to hide options that are not always relevant. - Use functions instead of macros for better variable scoping. - Factor out some duplicated bits into functions. - Update to the latest way of telling CMake to use C++17 or C++20. - Migrate everything that's setting global properties to setting only per-target properties. - Link with -nostdlib++ if it's available. If it isn't, fall back to enabling the C language and linking with the C compiler. - Make the per-test log messages verbose outputs. These kept scrolling important messages off the top of the screen for me. - Make building as a header-only library a public option. - Add install targets that install all of the headers and provide a config option. This works with the header-only configuration for integration with things like vcpkg. - Fix a missing `#endif` in the `malloc_useable_size` check. This was failing co compile on all platforms because of the missing `#endif`. - Bump the minimum version to 3.14 so that we have access to target_link_options. This is necessary to use generator expressions for linker flags. - Make the linker error if the shim libraries depend on symbols that are not defined in the explicitly-provided libraries. - Make the old-Ubuntu CI jobs use C++17 explicitly (previously CMake was silently ignoring the fact that the compiler didn't support C++20) - Fix errors found by the more aggressive linking mode. With these changes, it's now possible to install snmalloc and then, in another project, do something like this: ```cmake find_package(snmalloc CONFIG REQUIRED) target_link_libraries(t1 snmalloc::snmalloc) target_link_libraries(t2 snmalloc::snmallocshim-static) ``` In this example, `t1` gets all of the compile flags necessary to include snmalloc headers for its build configuration. `t2` is additionally linked to the snmalloc static shim library.
2021-09-03 13:31:05 +03:00
# Add header paths.
target_include_directories(snmalloc
INTERFACE
$<INSTALL_INTERFACE:include/snmalloc>
$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/src>)
Improved support for MSVC with C++17
2021-08-26 14:18:53 +03:00
CMake Header-Only Target (#46) Make header only library target. Use the CMake INTERFACE target type to include the build settings for snmalloc in other projects using headers only. Made warnings setting a macro for reuse.
2019-05-09 14:32:32 +03:00
if(NOT MSVC)
CMake cleanup. (#384) Modernise and tidy the CMake a bit: - Use generator expressions for a lot of conditionals so that things are more reliable with multi-config generators (and less verbose). - Remove C as a needed language. None of the code was C but we were using C to test if headers worked. This was fragile because a build with `CMAKE_CXX_COMPILER` set might have checked things compiled with the system C compiler and then failed when the specified C++ compiler used different headers. - Rename the `BACKTRACE_HEADER` macro to `SNMALLOC_BACKTRACE_HEADER`. This is exposed into code that consumes snmalloc and so should be 'namespaced' (to the degree that's possible with C macros). - Clean up the options and use dependent options to hide options that are not always relevant. - Use functions instead of macros for better variable scoping. - Factor out some duplicated bits into functions. - Update to the latest way of telling CMake to use C++17 or C++20. - Migrate everything that's setting global properties to setting only per-target properties. - Link with -nostdlib++ if it's available. If it isn't, fall back to enabling the C language and linking with the C compiler. - Make the per-test log messages verbose outputs. These kept scrolling important messages off the top of the screen for me. - Make building as a header-only library a public option. - Add install targets that install all of the headers and provide a config option. This works with the header-only configuration for integration with things like vcpkg. - Fix a missing `#endif` in the `malloc_useable_size` check. This was failing co compile on all platforms because of the missing `#endif`. - Bump the minimum version to 3.14 so that we have access to target_link_options. This is necessary to use generator expressions for linker flags. - Make the linker error if the shim libraries depend on symbols that are not defined in the explicitly-provided libraries. - Make the old-Ubuntu CI jobs use C++17 explicitly (previously CMake was silently ignoring the fact that the compiler didn't support C++20) - Fix errors found by the more aggressive linking mode. With these changes, it's now possible to install snmalloc and then, in another project, do something like this: ```cmake find_package(snmalloc CONFIG REQUIRED) target_link_libraries(t1 snmalloc::snmalloc) target_link_libraries(t2 snmalloc::snmallocshim-static) ``` In this example, `t1` gets all of the compile flags necessary to include snmalloc headers for its build configuration. `t2` is additionally linked to the snmalloc static shim library.
2021-09-03 13:31:05 +03:00
find_package(Threads REQUIRED COMPONENTS snmalloc)
target_link_libraries(snmalloc INTERFACE
${CMAKE_THREAD_LIBS_INIT} $<$<CXX_COMPILER_ID:GNU>:atomic>)
Make snmalloc build on Windows with Clang Fixes a few places where Clang complains about Windows specific code, and also uses macros supported by Clang on Windows. A few places separating platform and compiler specific code, as MSVC and WIN32 were used interchangably previously.
2020-01-24 16:17:45 +03:00
endif()
if (WIN32)
Use VirtualAlloc2 on Windows. The newer API (Windows 10 and newer) allows the allocator to ask for strongly aligned memory. This is enabled only if the `WINVER` macro is set to target Windows 10 or newer. There is now a CMake option to target older versions of Windows, so we can test both code paths. The Azure Pipelines config now includes a test of the compatibility version. This runs only the release build, because it's mainly there as a sanity check - 99% of the code is the same as the default Windows config.
2019-02-19 15:34:53 +03:00
set(WIN8COMPAT FALSE CACHE BOOL "Avoid Windows 10 APIs")
CMake cleanup. (#384) Modernise and tidy the CMake a bit: - Use generator expressions for a lot of conditionals so that things are more reliable with multi-config generators (and less verbose). - Remove C as a needed language. None of the code was C but we were using C to test if headers worked. This was fragile because a build with `CMAKE_CXX_COMPILER` set might have checked things compiled with the system C compiler and then failed when the specified C++ compiler used different headers. - Rename the `BACKTRACE_HEADER` macro to `SNMALLOC_BACKTRACE_HEADER`. This is exposed into code that consumes snmalloc and so should be 'namespaced' (to the degree that's possible with C macros). - Clean up the options and use dependent options to hide options that are not always relevant. - Use functions instead of macros for better variable scoping. - Factor out some duplicated bits into functions. - Update to the latest way of telling CMake to use C++17 or C++20. - Migrate everything that's setting global properties to setting only per-target properties. - Link with -nostdlib++ if it's available. If it isn't, fall back to enabling the C language and linking with the C compiler. - Make the per-test log messages verbose outputs. These kept scrolling important messages off the top of the screen for me. - Make building as a header-only library a public option. - Add install targets that install all of the headers and provide a config option. This works with the header-only configuration for integration with things like vcpkg. - Fix a missing `#endif` in the `malloc_useable_size` check. This was failing co compile on all platforms because of the missing `#endif`. - Bump the minimum version to 3.14 so that we have access to target_link_options. This is necessary to use generator expressions for linker flags. - Make the linker error if the shim libraries depend on symbols that are not defined in the explicitly-provided libraries. - Make the old-Ubuntu CI jobs use C++17 explicitly (previously CMake was silently ignoring the fact that the compiler didn't support C++20) - Fix errors found by the more aggressive linking mode. With these changes, it's now possible to install snmalloc and then, in another project, do something like this: ```cmake find_package(snmalloc CONFIG REQUIRED) target_link_libraries(t1 snmalloc::snmalloc) target_link_libraries(t2 snmalloc::snmallocshim-static) ``` In this example, `t1` gets all of the compile flags necessary to include snmalloc headers for its build configuration. `t2` is additionally linked to the snmalloc static shim library.
2021-09-03 13:31:05 +03:00
target_compile_definitions(snmalloc INTERFACE $<$<BOOL:${WIN8COMPAT}>:WINVER=0x0603>)
# VirtualAlloc2 is exposed by mincore.lib, not Kernel32.lib (as the
# documentation says)
target_link_libraries(snmalloc INTERFACE $<$<NOT:$<BOOL:${WIN8COMPAT}>>:mincore>)
message(STATUS "snmalloc: Avoiding Windows 10 APIs is ${WIN8COMPAT}")
Initial commit of snmalloc History squashed from internal development. Internal history has commit hash: e27a0e485c44a5003a802de2661ce3b21e120316
2019-01-15 17:17:55 +03:00
endif()
CMake cleanup. (#384) Modernise and tidy the CMake a bit: - Use generator expressions for a lot of conditionals so that things are more reliable with multi-config generators (and less verbose). - Remove C as a needed language. None of the code was C but we were using C to test if headers worked. This was fragile because a build with `CMAKE_CXX_COMPILER` set might have checked things compiled with the system C compiler and then failed when the specified C++ compiler used different headers. - Rename the `BACKTRACE_HEADER` macro to `SNMALLOC_BACKTRACE_HEADER`. This is exposed into code that consumes snmalloc and so should be 'namespaced' (to the degree that's possible with C macros). - Clean up the options and use dependent options to hide options that are not always relevant. - Use functions instead of macros for better variable scoping. - Factor out some duplicated bits into functions. - Update to the latest way of telling CMake to use C++17 or C++20. - Migrate everything that's setting global properties to setting only per-target properties. - Link with -nostdlib++ if it's available. If it isn't, fall back to enabling the C language and linking with the C compiler. - Make the per-test log messages verbose outputs. These kept scrolling important messages off the top of the screen for me. - Make building as a header-only library a public option. - Add install targets that install all of the headers and provide a config option. This works with the header-only configuration for integration with things like vcpkg. - Fix a missing `#endif` in the `malloc_useable_size` check. This was failing co compile on all platforms because of the missing `#endif`. - Bump the minimum version to 3.14 so that we have access to target_link_options. This is necessary to use generator expressions for linker flags. - Make the linker error if the shim libraries depend on symbols that are not defined in the explicitly-provided libraries. - Make the old-Ubuntu CI jobs use C++17 explicitly (previously CMake was silently ignoring the fact that the compiler didn't support C++20) - Fix errors found by the more aggressive linking mode. With these changes, it's now possible to install snmalloc and then, in another project, do something like this: ```cmake find_package(snmalloc CONFIG REQUIRED) target_link_libraries(t1 snmalloc::snmalloc) target_link_libraries(t2 snmalloc::snmallocshim-static) ``` In this example, `t1` gets all of the compile flags necessary to include snmalloc headers for its build configuration. `t2` is additionally linked to the snmalloc static shim library.
2021-09-03 13:31:05 +03:00
# Detect support for cmpxchg16b; Werror is needed to make sure mcx16 must be used by targets
refact(cmake): change mcx16 detection to facilitate cross compiling (#351) * refact(cmake): change mcx16 detection to facilitate cross compiling Signed-off-by: SchrodingerZhu <i@zhuyi.fan>
2021-07-20 10:59:44 +03:00
check_cxx_compiler_flag("-Werror -Wextra -Wall -mcx16" SNMALLOC_COMPILER_SUPPORT_MCX16)
if(SNMALLOC_COMPILER_SUPPORT_MCX16)
CMake cleanup. (#384) Modernise and tidy the CMake a bit: - Use generator expressions for a lot of conditionals so that things are more reliable with multi-config generators (and less verbose). - Remove C as a needed language. None of the code was C but we were using C to test if headers worked. This was fragile because a build with `CMAKE_CXX_COMPILER` set might have checked things compiled with the system C compiler and then failed when the specified C++ compiler used different headers. - Rename the `BACKTRACE_HEADER` macro to `SNMALLOC_BACKTRACE_HEADER`. This is exposed into code that consumes snmalloc and so should be 'namespaced' (to the degree that's possible with C macros). - Clean up the options and use dependent options to hide options that are not always relevant. - Use functions instead of macros for better variable scoping. - Factor out some duplicated bits into functions. - Update to the latest way of telling CMake to use C++17 or C++20. - Migrate everything that's setting global properties to setting only per-target properties. - Link with -nostdlib++ if it's available. If it isn't, fall back to enabling the C language and linking with the C compiler. - Make the per-test log messages verbose outputs. These kept scrolling important messages off the top of the screen for me. - Make building as a header-only library a public option. - Add install targets that install all of the headers and provide a config option. This works with the header-only configuration for integration with things like vcpkg. - Fix a missing `#endif` in the `malloc_useable_size` check. This was failing co compile on all platforms because of the missing `#endif`. - Bump the minimum version to 3.14 so that we have access to target_link_options. This is necessary to use generator expressions for linker flags. - Make the linker error if the shim libraries depend on symbols that are not defined in the explicitly-provided libraries. - Make the old-Ubuntu CI jobs use C++17 explicitly (previously CMake was silently ignoring the fact that the compiler didn't support C++20) - Fix errors found by the more aggressive linking mode. With these changes, it's now possible to install snmalloc and then, in another project, do something like this: ```cmake find_package(snmalloc CONFIG REQUIRED) target_link_libraries(t1 snmalloc::snmalloc) target_link_libraries(t2 snmalloc::snmallocshim-static) ``` In this example, `t1` gets all of the compile flags necessary to include snmalloc headers for its build configuration. `t2` is additionally linked to the snmalloc static shim library.
2021-09-03 13:31:05 +03:00
target_compile_options(snmalloc INTERFACE $<$<COMPILE_LANGUAGE:CXX>:-mcx16>)
refact(cmake): change mcx16 detection to facilitate cross compiling (#351) * refact(cmake): change mcx16 detection to facilitate cross compiling Signed-off-by: SchrodingerZhu <i@zhuyi.fan>
2021-07-20 10:59:44 +03:00
endif()
Make snmalloc build on Windows with Clang Fixes a few places where Clang complains about Windows specific code, and also uses macros supported by Clang on Windows. A few places separating platform and compiler specific code, as MSVC and WIN32 were used interchangably previously.
2020-01-24 16:17:45 +03:00
CMake cleanup. (#384) Modernise and tidy the CMake a bit: - Use generator expressions for a lot of conditionals so that things are more reliable with multi-config generators (and less verbose). - Remove C as a needed language. None of the code was C but we were using C to test if headers worked. This was fragile because a build with `CMAKE_CXX_COMPILER` set might have checked things compiled with the system C compiler and then failed when the specified C++ compiler used different headers. - Rename the `BACKTRACE_HEADER` macro to `SNMALLOC_BACKTRACE_HEADER`. This is exposed into code that consumes snmalloc and so should be 'namespaced' (to the degree that's possible with C macros). - Clean up the options and use dependent options to hide options that are not always relevant. - Use functions instead of macros for better variable scoping. - Factor out some duplicated bits into functions. - Update to the latest way of telling CMake to use C++17 or C++20. - Migrate everything that's setting global properties to setting only per-target properties. - Link with -nostdlib++ if it's available. If it isn't, fall back to enabling the C language and linking with the C compiler. - Make the per-test log messages verbose outputs. These kept scrolling important messages off the top of the screen for me. - Make building as a header-only library a public option. - Add install targets that install all of the headers and provide a config option. This works with the header-only configuration for integration with things like vcpkg. - Fix a missing `#endif` in the `malloc_useable_size` check. This was failing co compile on all platforms because of the missing `#endif`. - Bump the minimum version to 3.14 so that we have access to target_link_options. This is necessary to use generator expressions for linker flags. - Make the linker error if the shim libraries depend on symbols that are not defined in the explicitly-provided libraries. - Make the old-Ubuntu CI jobs use C++17 explicitly (previously CMake was silently ignoring the fact that the compiler didn't support C++20) - Fix errors found by the more aggressive linking mode. With these changes, it's now possible to install snmalloc and then, in another project, do something like this: ```cmake find_package(snmalloc CONFIG REQUIRED) target_link_libraries(t1 snmalloc::snmalloc) target_link_libraries(t2 snmalloc::snmallocshim-static) ``` In this example, `t1` gets all of the compile flags necessary to include snmalloc headers for its build configuration. `t2` is additionally linked to the snmalloc static shim library.
2021-09-03 13:31:05 +03:00
# Helper function that conditionally defines a macro for the build target if
# the CMake variable of the same name is set.
function(add_as_define FLAG)
target_compile_definitions(snmalloc INTERFACE $<$<BOOL:${${FLAG}}>:${FLAG}>)
endfunction()
add_as_define(USE_SNMALLOC_STATS)
add_as_define(SNMALLOC_QEMU_WORKAROUND)
add_as_define(SNMALLOC_CI_BUILD)
add_as_define(SNMALLOC_PLATFORM_HAS_GETENTROPY)
export netbsd's reallocarr proposal. (#433) * export netbsd's reallocarr proposal. acts subtly differently from reallocarray, returns an error code and first argument as receiver. * not export by default * ci tests * apply suggestions * doc addition * Apply suggestions from code review Co-authored-by: Matthew Parkinson <mjp41@users.noreply.github.com>
2021-12-02 17:49:32 +03:00
if (SNMALLOC_NO_REALLOCARRAY)
add_as_define(SNMALLOC_NO_REALLOCARRAY)
endif()
if (SNMALLOC_NO_REALLOCARR)
add_as_define(SNMALLOC_NO_REALLOCARR)
endif()
add SYS_getrandom fallback for posix PAL (#431) * add SYS_getrandom fallback for posix PAL Signed-off-by: SchrodingerZhu <i@zhuyi.fan> * address CR Signed-off-by: SchrodingerZhu <i@zhuyi.fan> * guard and comments Signed-off-by: SchrodingerZhu <i@zhuyi.fan> * more fallback behavior Signed-off-by: SchrodingerZhu <i@zhuyi.fan> * fix random device fd Signed-off-by: SchrodingerZhu <i@zhuyi.fan> * special handling for EAGAIN Signed-off-by: SchrodingerZhu <i@zhuyi.fan>
2021-12-02 13:38:50 +03:00
CMake cleanup. (#384) Modernise and tidy the CMake a bit: - Use generator expressions for a lot of conditionals so that things are more reliable with multi-config generators (and less verbose). - Remove C as a needed language. None of the code was C but we were using C to test if headers worked. This was fragile because a build with `CMAKE_CXX_COMPILER` set might have checked things compiled with the system C compiler and then failed when the specified C++ compiler used different headers. - Rename the `BACKTRACE_HEADER` macro to `SNMALLOC_BACKTRACE_HEADER`. This is exposed into code that consumes snmalloc and so should be 'namespaced' (to the degree that's possible with C macros). - Clean up the options and use dependent options to hide options that are not always relevant. - Use functions instead of macros for better variable scoping. - Factor out some duplicated bits into functions. - Update to the latest way of telling CMake to use C++17 or C++20. - Migrate everything that's setting global properties to setting only per-target properties. - Link with -nostdlib++ if it's available. If it isn't, fall back to enabling the C language and linking with the C compiler. - Make the per-test log messages verbose outputs. These kept scrolling important messages off the top of the screen for me. - Make building as a header-only library a public option. - Add install targets that install all of the headers and provide a config option. This works with the header-only configuration for integration with things like vcpkg. - Fix a missing `#endif` in the `malloc_useable_size` check. This was failing co compile on all platforms because of the missing `#endif`. - Bump the minimum version to 3.14 so that we have access to target_link_options. This is necessary to use generator expressions for linker flags. - Make the linker error if the shim libraries depend on symbols that are not defined in the explicitly-provided libraries. - Make the old-Ubuntu CI jobs use C++17 explicitly (previously CMake was silently ignoring the fact that the compiler didn't support C++20) - Fix errors found by the more aggressive linking mode. With these changes, it's now possible to install snmalloc and then, in another project, do something like this: ```cmake find_package(snmalloc CONFIG REQUIRED) target_link_libraries(t1 snmalloc::snmalloc) target_link_libraries(t2 snmalloc::snmallocshim-static) ``` In this example, `t1` gets all of the compile flags necessary to include snmalloc headers for its build configuration. `t2` is additionally linked to the snmalloc static shim library.
2021-09-03 13:31:05 +03:00
target_compile_definitions(snmalloc INTERFACE $<$<BOOL:CONST_QUALIFIED_MALLOC_USABLE_SIZE>:MALLOC_USABLE_SIZE_QUALIFIER=const>)
# In debug and CI builds, link the backtrace library so that we can get stack
# traces on errors.
find_package(Backtrace)
if(${Backtrace_FOUND})
target_compile_definitions(snmalloc INTERFACE
$<${ci_or_debug}:SNMALLOC_BACKTRACE_HEADER="${Backtrace_HEADER}">)
target_link_libraries(snmalloc INTERFACE
$<${ci_or_debug}:${Backtrace_LIBRARIES}>)
target_include_directories(snmalloc INTERFACE
$<${ci_or_debug}:${Backtrace_INCLUDE_DIRS}>)
Initial commit of snmalloc History squashed from internal development. Internal history has commit hash: e27a0e485c44a5003a802de2661ce3b21e120316
2019-01-15 17:17:55 +03:00
endif()
CMake cleanup. (#384) Modernise and tidy the CMake a bit: - Use generator expressions for a lot of conditionals so that things are more reliable with multi-config generators (and less verbose). - Remove C as a needed language. None of the code was C but we were using C to test if headers worked. This was fragile because a build with `CMAKE_CXX_COMPILER` set might have checked things compiled with the system C compiler and then failed when the specified C++ compiler used different headers. - Rename the `BACKTRACE_HEADER` macro to `SNMALLOC_BACKTRACE_HEADER`. This is exposed into code that consumes snmalloc and so should be 'namespaced' (to the degree that's possible with C macros). - Clean up the options and use dependent options to hide options that are not always relevant. - Use functions instead of macros for better variable scoping. - Factor out some duplicated bits into functions. - Update to the latest way of telling CMake to use C++17 or C++20. - Migrate everything that's setting global properties to setting only per-target properties. - Link with -nostdlib++ if it's available. If it isn't, fall back to enabling the C language and linking with the C compiler. - Make the per-test log messages verbose outputs. These kept scrolling important messages off the top of the screen for me. - Make building as a header-only library a public option. - Add install targets that install all of the headers and provide a config option. This works with the header-only configuration for integration with things like vcpkg. - Fix a missing `#endif` in the `malloc_useable_size` check. This was failing co compile on all platforms because of the missing `#endif`. - Bump the minimum version to 3.14 so that we have access to target_link_options. This is necessary to use generator expressions for linker flags. - Make the linker error if the shim libraries depend on symbols that are not defined in the explicitly-provided libraries. - Make the old-Ubuntu CI jobs use C++17 explicitly (previously CMake was silently ignoring the fact that the compiler didn't support C++20) - Fix errors found by the more aggressive linking mode. With these changes, it's now possible to install snmalloc and then, in another project, do something like this: ```cmake find_package(snmalloc CONFIG REQUIRED) target_link_libraries(t1 snmalloc::snmalloc) target_link_libraries(t2 snmalloc::snmallocshim-static) ``` In this example, `t1` gets all of the compile flags necessary to include snmalloc headers for its build configuration. `t2` is additionally linked to the snmalloc static shim library.
2021-09-03 13:31:05 +03:00
if(MSVC)
target_compile_definitions(snmalloc INTERFACE -D_HAS_EXCEPTIONS=0)
else()
# All symbols are always dynamic on haiku and -rdynamic is redundant (and unsupported).
if (NOT CMAKE_SYSTEM_NAME STREQUAL "Haiku")
# Get better stack traces in CI and debug builds.
target_link_options(snmalloc INTERFACE $<${ci_or_debug}:-rdynamic>)
endif()
add android support (#171) * adjust for android * update docs * add const qualifier to `alloc_size` * check const qualifier in cmake
2020-04-18 09:58:13 +03:00
endif()
CMake cleanup. (#384) Modernise and tidy the CMake a bit: - Use generator expressions for a lot of conditionals so that things are more reliable with multi-config generators (and less verbose). - Remove C as a needed language. None of the code was C but we were using C to test if headers worked. This was fragile because a build with `CMAKE_CXX_COMPILER` set might have checked things compiled with the system C compiler and then failed when the specified C++ compiler used different headers. - Rename the `BACKTRACE_HEADER` macro to `SNMALLOC_BACKTRACE_HEADER`. This is exposed into code that consumes snmalloc and so should be 'namespaced' (to the degree that's possible with C macros). - Clean up the options and use dependent options to hide options that are not always relevant. - Use functions instead of macros for better variable scoping. - Factor out some duplicated bits into functions. - Update to the latest way of telling CMake to use C++17 or C++20. - Migrate everything that's setting global properties to setting only per-target properties. - Link with -nostdlib++ if it's available. If it isn't, fall back to enabling the C language and linking with the C compiler. - Make the per-test log messages verbose outputs. These kept scrolling important messages off the top of the screen for me. - Make building as a header-only library a public option. - Add install targets that install all of the headers and provide a config option. This works with the header-only configuration for integration with things like vcpkg. - Fix a missing `#endif` in the `malloc_useable_size` check. This was failing co compile on all platforms because of the missing `#endif`. - Bump the minimum version to 3.14 so that we have access to target_link_options. This is necessary to use generator expressions for linker flags. - Make the linker error if the shim libraries depend on symbols that are not defined in the explicitly-provided libraries. - Make the old-Ubuntu CI jobs use C++17 explicitly (previously CMake was silently ignoring the fact that the compiler didn't support C++20) - Fix errors found by the more aggressive linking mode. With these changes, it's now possible to install snmalloc and then, in another project, do something like this: ```cmake find_package(snmalloc CONFIG REQUIRED) target_link_libraries(t1 snmalloc::snmalloc) target_link_libraries(t2 snmalloc::snmallocshim-static) ``` In this example, `t1` gets all of the compile flags necessary to include snmalloc headers for its build configuration. `t2` is additionally linked to the snmalloc static shim library.
2021-09-03 13:31:05 +03:00
check_linker_flag(CXX "-Wl,--no-undefined" SNMALLOC_LINKER_SUPPORT_NO_ALLOW_SHLIB_UNDEF)
Code review feedback.
2020-02-05 15:47:24 +03:00
CMake cleanup. (#384) Modernise and tidy the CMake a bit: - Use generator expressions for a lot of conditionals so that things are more reliable with multi-config generators (and less verbose). - Remove C as a needed language. None of the code was C but we were using C to test if headers worked. This was fragile because a build with `CMAKE_CXX_COMPILER` set might have checked things compiled with the system C compiler and then failed when the specified C++ compiler used different headers. - Rename the `BACKTRACE_HEADER` macro to `SNMALLOC_BACKTRACE_HEADER`. This is exposed into code that consumes snmalloc and so should be 'namespaced' (to the degree that's possible with C macros). - Clean up the options and use dependent options to hide options that are not always relevant. - Use functions instead of macros for better variable scoping. - Factor out some duplicated bits into functions. - Update to the latest way of telling CMake to use C++17 or C++20. - Migrate everything that's setting global properties to setting only per-target properties. - Link with -nostdlib++ if it's available. If it isn't, fall back to enabling the C language and linking with the C compiler. - Make the per-test log messages verbose outputs. These kept scrolling important messages off the top of the screen for me. - Make building as a header-only library a public option. - Add install targets that install all of the headers and provide a config option. This works with the header-only configuration for integration with things like vcpkg. - Fix a missing `#endif` in the `malloc_useable_size` check. This was failing co compile on all platforms because of the missing `#endif`. - Bump the minimum version to 3.14 so that we have access to target_link_options. This is necessary to use generator expressions for linker flags. - Make the linker error if the shim libraries depend on symbols that are not defined in the explicitly-provided libraries. - Make the old-Ubuntu CI jobs use C++17 explicitly (previously CMake was silently ignoring the fact that the compiler didn't support C++20) - Fix errors found by the more aggressive linking mode. With these changes, it's now possible to install snmalloc and then, in another project, do something like this: ```cmake find_package(snmalloc CONFIG REQUIRED) target_link_libraries(t1 snmalloc::snmalloc) target_link_libraries(t2 snmalloc::snmallocshim-static) ``` In this example, `t1` gets all of the compile flags necessary to include snmalloc headers for its build configuration. `t2` is additionally linked to the snmalloc static shim library.
2021-09-03 13:31:05 +03:00
function(add_warning_flags name)
target_compile_options(${name} PRIVATE
$<$<CXX_COMPILER_ID:MSVC>:/Zi /W4 /WX /wd4127 /wd4324 /wd4201 $<${ci_or_debug}:/DEBUG>>
$<$<NOT:$<OR:$<CXX_COMPILER_ID:MSVC>,$<STREQUAL:${CMAKE_CXX_SIMULATE_ID},MSVC>>>:-fno-exceptions -fno-rtti -Wall -Wextra -Werror -Wundef>
$<$<CXX_COMPILER_ID:Clang>:-Wsign-conversion -Wconversion>)
target_link_options(${name} PRIVATE $<$<BOOL:${SNMALLOC_LINKER_SUPPORT_NO_ALLOW_SHLIB_UNDEF}>:-Wl,--no-undefined>)
endfunction()
Initial commit of snmalloc History squashed from internal development. Internal history has commit hash: e27a0e485c44a5003a802de2661ce3b21e120316
2019-01-15 17:17:55 +03:00
Address review comments.
2019-02-19 00:29:32 +03:00
CMake cleanup. (#384) Modernise and tidy the CMake a bit: - Use generator expressions for a lot of conditionals so that things are more reliable with multi-config generators (and less verbose). - Remove C as a needed language. None of the code was C but we were using C to test if headers worked. This was fragile because a build with `CMAKE_CXX_COMPILER` set might have checked things compiled with the system C compiler and then failed when the specified C++ compiler used different headers. - Rename the `BACKTRACE_HEADER` macro to `SNMALLOC_BACKTRACE_HEADER`. This is exposed into code that consumes snmalloc and so should be 'namespaced' (to the degree that's possible with C macros). - Clean up the options and use dependent options to hide options that are not always relevant. - Use functions instead of macros for better variable scoping. - Factor out some duplicated bits into functions. - Update to the latest way of telling CMake to use C++17 or C++20. - Migrate everything that's setting global properties to setting only per-target properties. - Link with -nostdlib++ if it's available. If it isn't, fall back to enabling the C language and linking with the C compiler. - Make the per-test log messages verbose outputs. These kept scrolling important messages off the top of the screen for me. - Make building as a header-only library a public option. - Add install targets that install all of the headers and provide a config option. This works with the header-only configuration for integration with things like vcpkg. - Fix a missing `#endif` in the `malloc_useable_size` check. This was failing co compile on all platforms because of the missing `#endif`. - Bump the minimum version to 3.14 so that we have access to target_link_options. This is necessary to use generator expressions for linker flags. - Make the linker error if the shim libraries depend on symbols that are not defined in the explicitly-provided libraries. - Make the old-Ubuntu CI jobs use C++17 explicitly (previously CMake was silently ignoring the fact that the compiler didn't support C++20) - Fix errors found by the more aggressive linking mode. With these changes, it's now possible to install snmalloc and then, in another project, do something like this: ```cmake find_package(snmalloc CONFIG REQUIRED) target_link_libraries(t1 snmalloc::snmalloc) target_link_libraries(t2 snmalloc::snmallocshim-static) ``` In this example, `t1` gets all of the compile flags necessary to include snmalloc headers for its build configuration. `t2` is additionally linked to the snmalloc static shim library.
2021-09-03 13:31:05 +03:00
# To build with just the header library target define SNMALLOC_HEADER_ONLY_LIBRARY
if(NOT SNMALLOC_HEADER_ONLY_LIBRARY)
CI for both arms (#151) * Add another ARM
2020-03-20 12:17:38 +03:00
CMake cleanup. (#384) Modernise and tidy the CMake a bit: - Use generator expressions for a lot of conditionals so that things are more reliable with multi-config generators (and less verbose). - Remove C as a needed language. None of the code was C but we were using C to test if headers worked. This was fragile because a build with `CMAKE_CXX_COMPILER` set might have checked things compiled with the system C compiler and then failed when the specified C++ compiler used different headers. - Rename the `BACKTRACE_HEADER` macro to `SNMALLOC_BACKTRACE_HEADER`. This is exposed into code that consumes snmalloc and so should be 'namespaced' (to the degree that's possible with C macros). - Clean up the options and use dependent options to hide options that are not always relevant. - Use functions instead of macros for better variable scoping. - Factor out some duplicated bits into functions. - Update to the latest way of telling CMake to use C++17 or C++20. - Migrate everything that's setting global properties to setting only per-target properties. - Link with -nostdlib++ if it's available. If it isn't, fall back to enabling the C language and linking with the C compiler. - Make the per-test log messages verbose outputs. These kept scrolling important messages off the top of the screen for me. - Make building as a header-only library a public option. - Add install targets that install all of the headers and provide a config option. This works with the header-only configuration for integration with things like vcpkg. - Fix a missing `#endif` in the `malloc_useable_size` check. This was failing co compile on all platforms because of the missing `#endif`. - Bump the minimum version to 3.14 so that we have access to target_link_options. This is necessary to use generator expressions for linker flags. - Make the linker error if the shim libraries depend on symbols that are not defined in the explicitly-provided libraries. - Make the old-Ubuntu CI jobs use C++17 explicitly (previously CMake was silently ignoring the fact that the compiler didn't support C++20) - Fix errors found by the more aggressive linking mode. With these changes, it's now possible to install snmalloc and then, in another project, do something like this: ```cmake find_package(snmalloc CONFIG REQUIRED) target_link_libraries(t1 snmalloc::snmalloc) target_link_libraries(t2 snmalloc::snmallocshim-static) ``` In this example, `t1` gets all of the compile flags necessary to include snmalloc headers for its build configuration. `t2` is additionally linked to the snmalloc static shim library.
2021-09-03 13:31:05 +03:00
function(subdirlist result curdir)
Major refactor of snmalloc (#343) # Pagemap The Pagemap now stores all the meta-data for the object allocation. The meta-data in the pagemap is effectively a triple of the sizeclass, the remote allocator, and a pointer to a 64 byte block of meta-data for this chunk of memory. By storing the pointer to a block, it allows the pagemap to handle multiple slab sizes without branching on the fast path. There is one entry in the pagemap per 16KiB of address space, but by using the same entry in the pagemap for 4 adjacent entries, then we can treat a 64KiB range can be treated as a single slab of allocations. This change also means there is almost no capability amplification required by the implementation on CHERI for finding meta-data. The only amplification is required, when we change the way a chunk is used to a size of object allocation. # Backend There is a second major aspect of the refactor that there is now a narrow API that abstracts the Pagemap, PAL and address space management. This should better enable the compartmentalisation and makes it easier to produce alternative backends for various research directions. This is a template parameter that can be used to specialised by the front-end in different ways. # Thread local state The thread local state has been refactored into two components, one (called 'localalloc') that is stored directly in the TLS and is constant initialised, and one that is allocated in the address space (called 'coreallloc') which is lazily created and pooled. # Difference This removes Superslabs/Medium slabs as there meta-data is now part of the pagemap.
2021-07-12 17:53:36 +03:00
file(GLOB children CONFIGURE_DEPENDS LIST_DIRECTORIES true RELATIVE ${curdir} ${curdir}/* )
CMake Header-Only Target (#46) Make header only library target. Use the CMake INTERFACE target type to include the build settings for snmalloc in other projects using headers only. Made warnings setting a macro for reuse.
2019-05-09 14:32:32 +03:00
set(dirlist "")
foreach(child ${children})
if(IS_DIRECTORY ${curdir}/${child})
list(APPEND dirlist ${child})
endif()
endforeach()
CMake cleanup. (#384) Modernise and tidy the CMake a bit: - Use generator expressions for a lot of conditionals so that things are more reliable with multi-config generators (and less verbose). - Remove C as a needed language. None of the code was C but we were using C to test if headers worked. This was fragile because a build with `CMAKE_CXX_COMPILER` set might have checked things compiled with the system C compiler and then failed when the specified C++ compiler used different headers. - Rename the `BACKTRACE_HEADER` macro to `SNMALLOC_BACKTRACE_HEADER`. This is exposed into code that consumes snmalloc and so should be 'namespaced' (to the degree that's possible with C macros). - Clean up the options and use dependent options to hide options that are not always relevant. - Use functions instead of macros for better variable scoping. - Factor out some duplicated bits into functions. - Update to the latest way of telling CMake to use C++17 or C++20. - Migrate everything that's setting global properties to setting only per-target properties. - Link with -nostdlib++ if it's available. If it isn't, fall back to enabling the C language and linking with the C compiler. - Make the per-test log messages verbose outputs. These kept scrolling important messages off the top of the screen for me. - Make building as a header-only library a public option. - Add install targets that install all of the headers and provide a config option. This works with the header-only configuration for integration with things like vcpkg. - Fix a missing `#endif` in the `malloc_useable_size` check. This was failing co compile on all platforms because of the missing `#endif`. - Bump the minimum version to 3.14 so that we have access to target_link_options. This is necessary to use generator expressions for linker flags. - Make the linker error if the shim libraries depend on symbols that are not defined in the explicitly-provided libraries. - Make the old-Ubuntu CI jobs use C++17 explicitly (previously CMake was silently ignoring the fact that the compiler didn't support C++20) - Fix errors found by the more aggressive linking mode. With these changes, it's now possible to install snmalloc and then, in another project, do something like this: ```cmake find_package(snmalloc CONFIG REQUIRED) target_link_libraries(t1 snmalloc::snmalloc) target_link_libraries(t2 snmalloc::snmallocshim-static) ``` In this example, `t1` gets all of the compile flags necessary to include snmalloc headers for its build configuration. `t2` is additionally linked to the snmalloc static shim library.
2021-09-03 13:31:05 +03:00
set(${result} ${dirlist} PARENT_SCOPE)
endfunction()
Initial commit of snmalloc History squashed from internal development. Internal history has commit hash: e27a0e485c44a5003a802de2661ce3b21e120316
2019-01-15 17:17:55 +03:00
CI: Add RISC-V 64 cross-build & qemu-user tests
2021-10-19 14:19:47 +03:00
if(NOT (DEFINED SNMALLOC_LINKER_FLAVOUR) OR ("${SNMALLOC_LINKER_FLAVOUR}" MATCHES "^$"))
# Linker not specified externally; probe to see if we can make lld work
set(CMAKE_REQUIRED_LINK_OPTIONS -fuse-ld=lld)
check_cxx_source_compiles("int main() { return 1; }" LLD_WORKS)
if (LLD_WORKS)
message(STATUS "Using LLD to link snmalloc shims")
endif()
elseif(SNMALLOC_LINKER_FLAVOUR STREQUAL "lld")
# Linker specified externally to be lld; assume it works and that the flags
# have also been set for us
set(LLD_WORKS TRUE)
else()
# Linker specified externally as something other than lld; presume it
# doesn't work and don't add its flags, below
set(LLD_WORKS FALSE)
CMake cleanup. (#384) Modernise and tidy the CMake a bit: - Use generator expressions for a lot of conditionals so that things are more reliable with multi-config generators (and less verbose). - Remove C as a needed language. None of the code was C but we were using C to test if headers worked. This was fragile because a build with `CMAKE_CXX_COMPILER` set might have checked things compiled with the system C compiler and then failed when the specified C++ compiler used different headers. - Rename the `BACKTRACE_HEADER` macro to `SNMALLOC_BACKTRACE_HEADER`. This is exposed into code that consumes snmalloc and so should be 'namespaced' (to the degree that's possible with C macros). - Clean up the options and use dependent options to hide options that are not always relevant. - Use functions instead of macros for better variable scoping. - Factor out some duplicated bits into functions. - Update to the latest way of telling CMake to use C++17 or C++20. - Migrate everything that's setting global properties to setting only per-target properties. - Link with -nostdlib++ if it's available. If it isn't, fall back to enabling the C language and linking with the C compiler. - Make the per-test log messages verbose outputs. These kept scrolling important messages off the top of the screen for me. - Make building as a header-only library a public option. - Add install targets that install all of the headers and provide a config option. This works with the header-only configuration for integration with things like vcpkg. - Fix a missing `#endif` in the `malloc_useable_size` check. This was failing co compile on all platforms because of the missing `#endif`. - Bump the minimum version to 3.14 so that we have access to target_link_options. This is necessary to use generator expressions for linker flags. - Make the linker error if the shim libraries depend on symbols that are not defined in the explicitly-provided libraries. - Make the old-Ubuntu CI jobs use C++17 explicitly (previously CMake was silently ignoring the fact that the compiler didn't support C++20) - Fix errors found by the more aggressive linking mode. With these changes, it's now possible to install snmalloc and then, in another project, do something like this: ```cmake find_package(snmalloc CONFIG REQUIRED) target_link_libraries(t1 snmalloc::snmalloc) target_link_libraries(t2 snmalloc::snmallocshim-static) ``` In this example, `t1` gets all of the compile flags necessary to include snmalloc headers for its build configuration. `t2` is additionally linked to the snmalloc static shim library.
2021-09-03 13:31:05 +03:00
endif()
Major refactor of snmalloc (#343) # Pagemap The Pagemap now stores all the meta-data for the object allocation. The meta-data in the pagemap is effectively a triple of the sizeclass, the remote allocator, and a pointer to a 64 byte block of meta-data for this chunk of memory. By storing the pointer to a block, it allows the pagemap to handle multiple slab sizes without branching on the fast path. There is one entry in the pagemap per 16KiB of address space, but by using the same entry in the pagemap for 4 adjacent entries, then we can treat a 64KiB range can be treated as a single slab of allocations. This change also means there is almost no capability amplification required by the implementation on CHERI for finding meta-data. The only amplification is required, when we change the way a chunk is used to a size of object allocation. # Backend There is a second major aspect of the refactor that there is now a narrow API that abstracts the Pagemap, PAL and address space management. This should better enable the compartmentalisation and makes it easier to produce alternative backends for various research directions. This is a template parameter that can be used to specialised by the front-end in different ways. # Thread local state The thread local state has been refactored into two components, one (called 'localalloc') that is stored directly in the TLS and is constant initialised, and one that is allocated in the address space (called 'coreallloc') which is lazily created and pooled. # Difference This removes Superslabs/Medium slabs as there meta-data is now part of the pagemap.
2021-07-12 17:53:36 +03:00
CMake cleanup. (#384) Modernise and tidy the CMake a bit: - Use generator expressions for a lot of conditionals so that things are more reliable with multi-config generators (and less verbose). - Remove C as a needed language. None of the code was C but we were using C to test if headers worked. This was fragile because a build with `CMAKE_CXX_COMPILER` set might have checked things compiled with the system C compiler and then failed when the specified C++ compiler used different headers. - Rename the `BACKTRACE_HEADER` macro to `SNMALLOC_BACKTRACE_HEADER`. This is exposed into code that consumes snmalloc and so should be 'namespaced' (to the degree that's possible with C macros). - Clean up the options and use dependent options to hide options that are not always relevant. - Use functions instead of macros for better variable scoping. - Factor out some duplicated bits into functions. - Update to the latest way of telling CMake to use C++17 or C++20. - Migrate everything that's setting global properties to setting only per-target properties. - Link with -nostdlib++ if it's available. If it isn't, fall back to enabling the C language and linking with the C compiler. - Make the per-test log messages verbose outputs. These kept scrolling important messages off the top of the screen for me. - Make building as a header-only library a public option. - Add install targets that install all of the headers and provide a config option. This works with the header-only configuration for integration with things like vcpkg. - Fix a missing `#endif` in the `malloc_useable_size` check. This was failing co compile on all platforms because of the missing `#endif`. - Bump the minimum version to 3.14 so that we have access to target_link_options. This is necessary to use generator expressions for linker flags. - Make the linker error if the shim libraries depend on symbols that are not defined in the explicitly-provided libraries. - Make the old-Ubuntu CI jobs use C++17 explicitly (previously CMake was silently ignoring the fact that the compiler didn't support C++20) - Fix errors found by the more aggressive linking mode. With these changes, it's now possible to install snmalloc and then, in another project, do something like this: ```cmake find_package(snmalloc CONFIG REQUIRED) target_link_libraries(t1 snmalloc::snmalloc) target_link_libraries(t2 snmalloc::snmallocshim-static) ``` In this example, `t1` gets all of the compile flags necessary to include snmalloc headers for its build configuration. `t2` is additionally linked to the snmalloc static shim library.
2021-09-03 13:31:05 +03:00
function(add_shim name type)
add rust support (#113) * add rust support * move aligned_size to sizeclass.h * add static qualifier * adjust CMakeLists.txt, may broke CI tests * fix msvc's complaining on c++17 * use SNMALLOC_FAST_PATH as the decorator of aligned_size * adapt new alignment algorithm and add related test Co-authored-by: mjp41 <mattpark@microsoft.com> * fix test cases for msvc * add extra test for size == 0 * treat memory block of same sizeclass as the same * fix formatting problem * remove extra declarations Co-authored-by: Matthew Parkinson <mjp41@users.noreply.github.com>
2020-01-23 10:08:18 +03:00
add_library(${name} ${type} ${ARGN})
CMake cleanup. (#384) Modernise and tidy the CMake a bit: - Use generator expressions for a lot of conditionals so that things are more reliable with multi-config generators (and less verbose). - Remove C as a needed language. None of the code was C but we were using C to test if headers worked. This was fragile because a build with `CMAKE_CXX_COMPILER` set might have checked things compiled with the system C compiler and then failed when the specified C++ compiler used different headers. - Rename the `BACKTRACE_HEADER` macro to `SNMALLOC_BACKTRACE_HEADER`. This is exposed into code that consumes snmalloc and so should be 'namespaced' (to the degree that's possible with C macros). - Clean up the options and use dependent options to hide options that are not always relevant. - Use functions instead of macros for better variable scoping. - Factor out some duplicated bits into functions. - Update to the latest way of telling CMake to use C++17 or C++20. - Migrate everything that's setting global properties to setting only per-target properties. - Link with -nostdlib++ if it's available. If it isn't, fall back to enabling the C language and linking with the C compiler. - Make the per-test log messages verbose outputs. These kept scrolling important messages off the top of the screen for me. - Make building as a header-only library a public option. - Add install targets that install all of the headers and provide a config option. This works with the header-only configuration for integration with things like vcpkg. - Fix a missing `#endif` in the `malloc_useable_size` check. This was failing co compile on all platforms because of the missing `#endif`. - Bump the minimum version to 3.14 so that we have access to target_link_options. This is necessary to use generator expressions for linker flags. - Make the linker error if the shim libraries depend on symbols that are not defined in the explicitly-provided libraries. - Make the old-Ubuntu CI jobs use C++17 explicitly (previously CMake was silently ignoring the fact that the compiler didn't support C++20) - Fix errors found by the more aggressive linking mode. With these changes, it's now possible to install snmalloc and then, in another project, do something like this: ```cmake find_package(snmalloc CONFIG REQUIRED) target_link_libraries(t1 snmalloc::snmalloc) target_link_libraries(t2 snmalloc::snmallocshim-static) ``` In this example, `t1` gets all of the compile flags necessary to include snmalloc headers for its build configuration. `t2` is additionally linked to the snmalloc static shim library.
2021-09-03 13:31:05 +03:00
target_link_libraries(${name} snmalloc)
CMake Header-Only Target (#46) Make header only library target. Use the CMake INTERFACE target type to include the build settings for snmalloc in other projects using headers only. Made warnings setting a macro for reuse.
2019-05-09 14:32:32 +03:00
set_target_properties(${name} PROPERTIES CXX_VISIBILITY_PRESET hidden)
CMake cleanup. (#384) Modernise and tidy the CMake a bit: - Use generator expressions for a lot of conditionals so that things are more reliable with multi-config generators (and less verbose). - Remove C as a needed language. None of the code was C but we were using C to test if headers worked. This was fragile because a build with `CMAKE_CXX_COMPILER` set might have checked things compiled with the system C compiler and then failed when the specified C++ compiler used different headers. - Rename the `BACKTRACE_HEADER` macro to `SNMALLOC_BACKTRACE_HEADER`. This is exposed into code that consumes snmalloc and so should be 'namespaced' (to the degree that's possible with C macros). - Clean up the options and use dependent options to hide options that are not always relevant. - Use functions instead of macros for better variable scoping. - Factor out some duplicated bits into functions. - Update to the latest way of telling CMake to use C++17 or C++20. - Migrate everything that's setting global properties to setting only per-target properties. - Link with -nostdlib++ if it's available. If it isn't, fall back to enabling the C language and linking with the C compiler. - Make the per-test log messages verbose outputs. These kept scrolling important messages off the top of the screen for me. - Make building as a header-only library a public option. - Add install targets that install all of the headers and provide a config option. This works with the header-only configuration for integration with things like vcpkg. - Fix a missing `#endif` in the `malloc_useable_size` check. This was failing co compile on all platforms because of the missing `#endif`. - Bump the minimum version to 3.14 so that we have access to target_link_options. This is necessary to use generator expressions for linker flags. - Make the linker error if the shim libraries depend on symbols that are not defined in the explicitly-provided libraries. - Make the old-Ubuntu CI jobs use C++17 explicitly (previously CMake was silently ignoring the fact that the compiler didn't support C++20) - Fix errors found by the more aggressive linking mode. With these changes, it's now possible to install snmalloc and then, in another project, do something like this: ```cmake find_package(snmalloc CONFIG REQUIRED) target_link_libraries(t1 snmalloc::snmalloc) target_link_libraries(t2 snmalloc::snmallocshim-static) ``` In this example, `t1` gets all of the compile flags necessary to include snmalloc headers for its build configuration. `t2` is additionally linked to the snmalloc static shim library.
2021-09-03 13:31:05 +03:00
target_compile_definitions(${name} PRIVATE "SNMALLOC_USE_${SNMALLOC_CLEANUP}")
Make internal symbols hidden. Only the malloc/free/... interface is exported. This allows all of C++'s weak ODR symbols to be resolved at compile-time, rather than staying weak and resolved at load-time. Since internal calls don't need to go through the PLT anymore, we get a nice speedup, at least on small objects.
2019-02-12 01:16:47 +03:00
CMake cleanup. (#384) Modernise and tidy the CMake a bit: - Use generator expressions for a lot of conditionals so that things are more reliable with multi-config generators (and less verbose). - Remove C as a needed language. None of the code was C but we were using C to test if headers worked. This was fragile because a build with `CMAKE_CXX_COMPILER` set might have checked things compiled with the system C compiler and then failed when the specified C++ compiler used different headers. - Rename the `BACKTRACE_HEADER` macro to `SNMALLOC_BACKTRACE_HEADER`. This is exposed into code that consumes snmalloc and so should be 'namespaced' (to the degree that's possible with C macros). - Clean up the options and use dependent options to hide options that are not always relevant. - Use functions instead of macros for better variable scoping. - Factor out some duplicated bits into functions. - Update to the latest way of telling CMake to use C++17 or C++20. - Migrate everything that's setting global properties to setting only per-target properties. - Link with -nostdlib++ if it's available. If it isn't, fall back to enabling the C language and linking with the C compiler. - Make the per-test log messages verbose outputs. These kept scrolling important messages off the top of the screen for me. - Make building as a header-only library a public option. - Add install targets that install all of the headers and provide a config option. This works with the header-only configuration for integration with things like vcpkg. - Fix a missing `#endif` in the `malloc_useable_size` check. This was failing co compile on all platforms because of the missing `#endif`. - Bump the minimum version to 3.14 so that we have access to target_link_options. This is necessary to use generator expressions for linker flags. - Make the linker error if the shim libraries depend on symbols that are not defined in the explicitly-provided libraries. - Make the old-Ubuntu CI jobs use C++17 explicitly (previously CMake was silently ignoring the fact that the compiler didn't support C++20) - Fix errors found by the more aggressive linking mode. With these changes, it's now possible to install snmalloc and then, in another project, do something like this: ```cmake find_package(snmalloc CONFIG REQUIRED) target_link_libraries(t1 snmalloc::snmalloc) target_link_libraries(t2 snmalloc::snmallocshim-static) ``` In this example, `t1` gets all of the compile flags necessary to include snmalloc headers for its build configuration. `t2` is additionally linked to the snmalloc static shim library.
2021-09-03 13:31:05 +03:00
add_warning_flags(${name})
add rust support (#113) * add rust support * move aligned_size to sizeclass.h * add static qualifier * adjust CMakeLists.txt, may broke CI tests * fix msvc's complaining on c++17 * use SNMALLOC_FAST_PATH as the decorator of aligned_size * adapt new alignment algorithm and add related test Co-authored-by: mjp41 <mattpark@microsoft.com> * fix test cases for msvc * add extra test for size == 0 * treat memory block of same sizeclass as the same * fix formatting problem * remove extra declarations Co-authored-by: Matthew Parkinson <mjp41@users.noreply.github.com>
2020-01-23 10:08:18 +03:00
if(NOT MSVC)
CMake cleanup. (#384) Modernise and tidy the CMake a bit: - Use generator expressions for a lot of conditionals so that things are more reliable with multi-config generators (and less verbose). - Remove C as a needed language. None of the code was C but we were using C to test if headers worked. This was fragile because a build with `CMAKE_CXX_COMPILER` set might have checked things compiled with the system C compiler and then failed when the specified C++ compiler used different headers. - Rename the `BACKTRACE_HEADER` macro to `SNMALLOC_BACKTRACE_HEADER`. This is exposed into code that consumes snmalloc and so should be 'namespaced' (to the degree that's possible with C macros). - Clean up the options and use dependent options to hide options that are not always relevant. - Use functions instead of macros for better variable scoping. - Factor out some duplicated bits into functions. - Update to the latest way of telling CMake to use C++17 or C++20. - Migrate everything that's setting global properties to setting only per-target properties. - Link with -nostdlib++ if it's available. If it isn't, fall back to enabling the C language and linking with the C compiler. - Make the per-test log messages verbose outputs. These kept scrolling important messages off the top of the screen for me. - Make building as a header-only library a public option. - Add install targets that install all of the headers and provide a config option. This works with the header-only configuration for integration with things like vcpkg. - Fix a missing `#endif` in the `malloc_useable_size` check. This was failing co compile on all platforms because of the missing `#endif`. - Bump the minimum version to 3.14 so that we have access to target_link_options. This is necessary to use generator expressions for linker flags. - Make the linker error if the shim libraries depend on symbols that are not defined in the explicitly-provided libraries. - Make the old-Ubuntu CI jobs use C++17 explicitly (previously CMake was silently ignoring the fact that the compiler didn't support C++20) - Fix errors found by the more aggressive linking mode. With these changes, it's now possible to install snmalloc and then, in another project, do something like this: ```cmake find_package(snmalloc CONFIG REQUIRED) target_link_libraries(t1 snmalloc::snmalloc) target_link_libraries(t2 snmalloc::snmallocshim-static) ``` In this example, `t1` gets all of the compile flags necessary to include snmalloc headers for its build configuration. `t2` is additionally linked to the snmalloc static shim library.
2021-09-03 13:31:05 +03:00
target_compile_definitions(${name} PRIVATE "SNMALLOC_EXPORT=__attribute__((visibility(\"default\")))")
target_compile_options(${name} PRIVATE
-fomit-frame-pointer -ffunction-sections)
# Static TLS model is unsupported on Haiku.
if (NOT CMAKE_SYSTEM_NAME STREQUAL "Haiku")
target_compile_options(${name} PRIVATE -ftls-model=initial-exec)
target_compile_options(${name} PRIVATE $<$<BOOL:${SNMALLOC_CI_BUILD}>:-g>)
endif()
Major refactor of snmalloc (#343) # Pagemap The Pagemap now stores all the meta-data for the object allocation. The meta-data in the pagemap is effectively a triple of the sizeclass, the remote allocator, and a pointer to a 64 byte block of meta-data for this chunk of memory. By storing the pointer to a block, it allows the pagemap to handle multiple slab sizes without branching on the fast path. There is one entry in the pagemap per 16KiB of address space, but by using the same entry in the pagemap for 4 adjacent entries, then we can treat a 64KiB range can be treated as a single slab of allocations. This change also means there is almost no capability amplification required by the implementation on CHERI for finding meta-data. The only amplification is required, when we change the way a chunk is used to a size of object allocation. # Backend There is a second major aspect of the refactor that there is now a narrow API that abstracts the Pagemap, PAL and address space management. This should better enable the compartmentalisation and makes it easier to produce alternative backends for various research directions. This is a template parameter that can be used to specialised by the front-end in different ways. # Thread local state The thread local state has been refactored into two components, one (called 'localalloc') that is stored directly in the TLS and is constant initialised, and one that is allocated in the address space (called 'coreallloc') which is lazily created and pooled. # Difference This removes Superslabs/Medium slabs as there meta-data is now part of the pagemap.
2021-07-12 17:53:36 +03:00
CMake cleanup. (#384) Modernise and tidy the CMake a bit: - Use generator expressions for a lot of conditionals so that things are more reliable with multi-config generators (and less verbose). - Remove C as a needed language. None of the code was C but we were using C to test if headers worked. This was fragile because a build with `CMAKE_CXX_COMPILER` set might have checked things compiled with the system C compiler and then failed when the specified C++ compiler used different headers. - Rename the `BACKTRACE_HEADER` macro to `SNMALLOC_BACKTRACE_HEADER`. This is exposed into code that consumes snmalloc and so should be 'namespaced' (to the degree that's possible with C macros). - Clean up the options and use dependent options to hide options that are not always relevant. - Use functions instead of macros for better variable scoping. - Factor out some duplicated bits into functions. - Update to the latest way of telling CMake to use C++17 or C++20. - Migrate everything that's setting global properties to setting only per-target properties. - Link with -nostdlib++ if it's available. If it isn't, fall back to enabling the C language and linking with the C compiler. - Make the per-test log messages verbose outputs. These kept scrolling important messages off the top of the screen for me. - Make building as a header-only library a public option. - Add install targets that install all of the headers and provide a config option. This works with the header-only configuration for integration with things like vcpkg. - Fix a missing `#endif` in the `malloc_useable_size` check. This was failing co compile on all platforms because of the missing `#endif`. - Bump the minimum version to 3.14 so that we have access to target_link_options. This is necessary to use generator expressions for linker flags. - Make the linker error if the shim libraries depend on symbols that are not defined in the explicitly-provided libraries. - Make the old-Ubuntu CI jobs use C++17 explicitly (previously CMake was silently ignoring the fact that the compiler didn't support C++20) - Fix errors found by the more aggressive linking mode. With these changes, it's now possible to install snmalloc and then, in another project, do something like this: ```cmake find_package(snmalloc CONFIG REQUIRED) target_link_libraries(t1 snmalloc::snmalloc) target_link_libraries(t2 snmalloc::snmallocshim-static) ``` In this example, `t1` gets all of the compile flags necessary to include snmalloc headers for its build configuration. `t2` is additionally linked to the snmalloc static shim library.
2021-09-03 13:31:05 +03:00
if(SNMALLOC_OPTIMISE_FOR_CURRENT_MACHINE)
check_cxx_compiler_flag(-march=native SUPPORT_MARCH_NATIVE)
if (SUPPORT_MARCH_NATIVE)
target_compile_options(${name} -march=native)
else()
message(WARNING "Compiler does not support `-march=native` required by SNMALLOC_OPTIMISE_FOR_CURRENT_MACHINE")
endif()
endif()
Major refactor of snmalloc (#343) # Pagemap The Pagemap now stores all the meta-data for the object allocation. The meta-data in the pagemap is effectively a triple of the sizeclass, the remote allocator, and a pointer to a 64 byte block of meta-data for this chunk of memory. By storing the pointer to a block, it allows the pagemap to handle multiple slab sizes without branching on the fast path. There is one entry in the pagemap per 16KiB of address space, but by using the same entry in the pagemap for 4 adjacent entries, then we can treat a 64KiB range can be treated as a single slab of allocations. This change also means there is almost no capability amplification required by the implementation on CHERI for finding meta-data. The only amplification is required, when we change the way a chunk is used to a size of object allocation. # Backend There is a second major aspect of the refactor that there is now a narrow API that abstracts the Pagemap, PAL and address space management. This should better enable the compartmentalisation and makes it easier to produce alternative backends for various research directions. This is a template parameter that can be used to specialised by the front-end in different ways. # Thread local state The thread local state has been refactored into two components, one (called 'localalloc') that is stored directly in the TLS and is constant initialised, and one that is allocated in the address space (called 'coreallloc') which is lazily created and pooled. # Difference This removes Superslabs/Medium slabs as there meta-data is now part of the pagemap.
2021-07-12 17:53:36 +03:00
CMake cleanup. (#384) Modernise and tidy the CMake a bit: - Use generator expressions for a lot of conditionals so that things are more reliable with multi-config generators (and less verbose). - Remove C as a needed language. None of the code was C but we were using C to test if headers worked. This was fragile because a build with `CMAKE_CXX_COMPILER` set might have checked things compiled with the system C compiler and then failed when the specified C++ compiler used different headers. - Rename the `BACKTRACE_HEADER` macro to `SNMALLOC_BACKTRACE_HEADER`. This is exposed into code that consumes snmalloc and so should be 'namespaced' (to the degree that's possible with C macros). - Clean up the options and use dependent options to hide options that are not always relevant. - Use functions instead of macros for better variable scoping. - Factor out some duplicated bits into functions. - Update to the latest way of telling CMake to use C++17 or C++20. - Migrate everything that's setting global properties to setting only per-target properties. - Link with -nostdlib++ if it's available. If it isn't, fall back to enabling the C language and linking with the C compiler. - Make the per-test log messages verbose outputs. These kept scrolling important messages off the top of the screen for me. - Make building as a header-only library a public option. - Add install targets that install all of the headers and provide a config option. This works with the header-only configuration for integration with things like vcpkg. - Fix a missing `#endif` in the `malloc_useable_size` check. This was failing co compile on all platforms because of the missing `#endif`. - Bump the minimum version to 3.14 so that we have access to target_link_options. This is necessary to use generator expressions for linker flags. - Make the linker error if the shim libraries depend on symbols that are not defined in the explicitly-provided libraries. - Make the old-Ubuntu CI jobs use C++17 explicitly (previously CMake was silently ignoring the fact that the compiler didn't support C++20) - Fix errors found by the more aggressive linking mode. With these changes, it's now possible to install snmalloc and then, in another project, do something like this: ```cmake find_package(snmalloc CONFIG REQUIRED) target_link_libraries(t1 snmalloc::snmalloc) target_link_libraries(t2 snmalloc::snmallocshim-static) ``` In this example, `t1` gets all of the compile flags necessary to include snmalloc headers for its build configuration. `t2` is additionally linked to the snmalloc static shim library.
2021-09-03 13:31:05 +03:00
# Ensure that we do not link against C++ stdlib when compiling shims.
# If the compiler supports excluding the C++ stdlib implementation, use
# it. Otherwise, fall back to linking the library as if it were C, which
# has roughly the same effect.
if (NOT ${SNMALLOC_CLEANUP} STREQUAL CXX11_DESTRUCTORS)
check_linker_flag(CXX "-nostdlib++" SNMALLOC_LINKER_SUPPORT_NOSTDLIBXX)
if (SNMALLOC_LINKER_SUPPORT_NOSTDLIBXX)
Add a timer to the PAL This adds a way to periodically pool the PAL to see if any timers have expired. Timers can be used to periodically provide callbacks to the rest of snmalloc.
2021-10-20 11:31:45 +03:00
target_link_options(${name} PRIVATE -nostdlib++)
CMake cleanup. (#384) Modernise and tidy the CMake a bit: - Use generator expressions for a lot of conditionals so that things are more reliable with multi-config generators (and less verbose). - Remove C as a needed language. None of the code was C but we were using C to test if headers worked. This was fragile because a build with `CMAKE_CXX_COMPILER` set might have checked things compiled with the system C compiler and then failed when the specified C++ compiler used different headers. - Rename the `BACKTRACE_HEADER` macro to `SNMALLOC_BACKTRACE_HEADER`. This is exposed into code that consumes snmalloc and so should be 'namespaced' (to the degree that's possible with C macros). - Clean up the options and use dependent options to hide options that are not always relevant. - Use functions instead of macros for better variable scoping. - Factor out some duplicated bits into functions. - Update to the latest way of telling CMake to use C++17 or C++20. - Migrate everything that's setting global properties to setting only per-target properties. - Link with -nostdlib++ if it's available. If it isn't, fall back to enabling the C language and linking with the C compiler. - Make the per-test log messages verbose outputs. These kept scrolling important messages off the top of the screen for me. - Make building as a header-only library a public option. - Add install targets that install all of the headers and provide a config option. This works with the header-only configuration for integration with things like vcpkg. - Fix a missing `#endif` in the `malloc_useable_size` check. This was failing co compile on all platforms because of the missing `#endif`. - Bump the minimum version to 3.14 so that we have access to target_link_options. This is necessary to use generator expressions for linker flags. - Make the linker error if the shim libraries depend on symbols that are not defined in the explicitly-provided libraries. - Make the old-Ubuntu CI jobs use C++17 explicitly (previously CMake was silently ignoring the fact that the compiler didn't support C++20) - Fix errors found by the more aggressive linking mode. With these changes, it's now possible to install snmalloc and then, in another project, do something like this: ```cmake find_package(snmalloc CONFIG REQUIRED) target_link_libraries(t1 snmalloc::snmalloc) target_link_libraries(t2 snmalloc::snmallocshim-static) ``` In this example, `t1` gets all of the compile flags necessary to include snmalloc headers for its build configuration. `t2` is additionally linked to the snmalloc static shim library.
2021-09-03 13:31:05 +03:00
else()
set_target_properties(${name} PROPERTIES LINKER_LANGUAGE C)
endif()
Major refactor of snmalloc (#343) # Pagemap The Pagemap now stores all the meta-data for the object allocation. The meta-data in the pagemap is effectively a triple of the sizeclass, the remote allocator, and a pointer to a 64 byte block of meta-data for this chunk of memory. By storing the pointer to a block, it allows the pagemap to handle multiple slab sizes without branching on the fast path. There is one entry in the pagemap per 16KiB of address space, but by using the same entry in the pagemap for 4 adjacent entries, then we can treat a 64KiB range can be treated as a single slab of allocations. This change also means there is almost no capability amplification required by the implementation on CHERI for finding meta-data. The only amplification is required, when we change the way a chunk is used to a size of object allocation. # Backend There is a second major aspect of the refactor that there is now a narrow API that abstracts the Pagemap, PAL and address space management. This should better enable the compartmentalisation and makes it easier to produce alternative backends for various research directions. This is a template parameter that can be used to specialised by the front-end in different ways. # Thread local state The thread local state has been refactored into two components, one (called 'localalloc') that is stored directly in the TLS and is constant initialised, and one that is allocated in the address space (called 'coreallloc') which is lazily created and pooled. # Difference This removes Superslabs/Medium slabs as there meta-data is now part of the pagemap.
2021-07-12 17:53:36 +03:00
endif()
CMake cleanup. (#384) Modernise and tidy the CMake a bit: - Use generator expressions for a lot of conditionals so that things are more reliable with multi-config generators (and less verbose). - Remove C as a needed language. None of the code was C but we were using C to test if headers worked. This was fragile because a build with `CMAKE_CXX_COMPILER` set might have checked things compiled with the system C compiler and then failed when the specified C++ compiler used different headers. - Rename the `BACKTRACE_HEADER` macro to `SNMALLOC_BACKTRACE_HEADER`. This is exposed into code that consumes snmalloc and so should be 'namespaced' (to the degree that's possible with C macros). - Clean up the options and use dependent options to hide options that are not always relevant. - Use functions instead of macros for better variable scoping. - Factor out some duplicated bits into functions. - Update to the latest way of telling CMake to use C++17 or C++20. - Migrate everything that's setting global properties to setting only per-target properties. - Link with -nostdlib++ if it's available. If it isn't, fall back to enabling the C language and linking with the C compiler. - Make the per-test log messages verbose outputs. These kept scrolling important messages off the top of the screen for me. - Make building as a header-only library a public option. - Add install targets that install all of the headers and provide a config option. This works with the header-only configuration for integration with things like vcpkg. - Fix a missing `#endif` in the `malloc_useable_size` check. This was failing co compile on all platforms because of the missing `#endif`. - Bump the minimum version to 3.14 so that we have access to target_link_options. This is necessary to use generator expressions for linker flags. - Make the linker error if the shim libraries depend on symbols that are not defined in the explicitly-provided libraries. - Make the old-Ubuntu CI jobs use C++17 explicitly (previously CMake was silently ignoring the fact that the compiler didn't support C++20) - Fix errors found by the more aggressive linking mode. With these changes, it's now possible to install snmalloc and then, in another project, do something like this: ```cmake find_package(snmalloc CONFIG REQUIRED) target_link_libraries(t1 snmalloc::snmalloc) target_link_libraries(t2 snmalloc::snmallocshim-static) ``` In this example, `t1` gets all of the compile flags necessary to include snmalloc headers for its build configuration. `t2` is additionally linked to the snmalloc static shim library.
2021-09-03 13:31:05 +03:00
# Remove all the duplicate new/malloc and free/delete definitions
target_link_options(${name} PRIVATE $<$<BOOL:${LLD_WORKS}>:-Wl,--icf=all -fuse-ld=lld>)
add rust support (#113) * add rust support * move aligned_size to sizeclass.h * add static qualifier * adjust CMakeLists.txt, may broke CI tests * fix msvc's complaining on c++17 * use SNMALLOC_FAST_PATH as the decorator of aligned_size * adapt new alignment algorithm and add related test Co-authored-by: mjp41 <mattpark@microsoft.com> * fix test cases for msvc * add extra test for size == 0 * treat memory block of same sizeclass as the same * fix formatting problem * remove extra declarations Co-authored-by: Matthew Parkinson <mjp41@users.noreply.github.com>
2020-01-23 10:08:18 +03:00
endif()
Set linker-language C; prevents linking c++ stdlib Thanks to Alex Richardson for the suggestion
2019-11-14 18:40:05 +03:00
Add memcpy with bounds checks. The memcpy implementation is not completely stupid but is almost certainly not as good as a carefully tuned and optimised one. Building snmalloc with FreeBSD's libc memcpy + jemalloc and with this, each 10 times, does not show a statistically significant performance difference at 95% confidence. The snmalloc version has very slightly lower median and worst-case times. This is in no way a sensible benchmark, but it serves as a smoke test for significant performance regressions. The CI self-host job now uses the checked memcpy. This also fixes an off-by-one error in the external bounds. This is triggered by ninja, so we will see breakage in CI if it is reintroduced. In debug builds, we provide a verbose error containing the address of the allocation, the base and bounds of the allocation, and a backtrace. The backtrace was broken by the CI cleanup moving the BACKTRACE_HEADER macro into the SNMALLOC_ namespace. This is also fixed. The test involves hijacking `abort`, which doesn't work everywhere. It also requires `backtrace` to work in configurations where stack traces are enabled. This is disabled in QEMU because `backtrace` appears to crash reliably in QEMU user mode. For now, in the -checks build configurations, we are hitting a slow path in the pagemap on accesses so that the pages that are `PROT_NONE` don't cause crashes. These need to be made read-only, but this requires a PAL change.
2021-08-10 13:36:53 +03:00
target_compile_definitions(${name} PRIVATE
SNMALLOC_CHECK_LOADS=$<IF:$<BOOL:${SNMALLOC_CHECK_LOADS}>,true,false>)
CMake cleanup. (#384) Modernise and tidy the CMake a bit: - Use generator expressions for a lot of conditionals so that things are more reliable with multi-config generators (and less verbose). - Remove C as a needed language. None of the code was C but we were using C to test if headers worked. This was fragile because a build with `CMAKE_CXX_COMPILER` set might have checked things compiled with the system C compiler and then failed when the specified C++ compiler used different headers. - Rename the `BACKTRACE_HEADER` macro to `SNMALLOC_BACKTRACE_HEADER`. This is exposed into code that consumes snmalloc and so should be 'namespaced' (to the degree that's possible with C macros). - Clean up the options and use dependent options to hide options that are not always relevant. - Use functions instead of macros for better variable scoping. - Factor out some duplicated bits into functions. - Update to the latest way of telling CMake to use C++17 or C++20. - Migrate everything that's setting global properties to setting only per-target properties. - Link with -nostdlib++ if it's available. If it isn't, fall back to enabling the C language and linking with the C compiler. - Make the per-test log messages verbose outputs. These kept scrolling important messages off the top of the screen for me. - Make building as a header-only library a public option. - Add install targets that install all of the headers and provide a config option. This works with the header-only configuration for integration with things like vcpkg. - Fix a missing `#endif` in the `malloc_useable_size` check. This was failing co compile on all platforms because of the missing `#endif`. - Bump the minimum version to 3.14 so that we have access to target_link_options. This is necessary to use generator expressions for linker flags. - Make the linker error if the shim libraries depend on symbols that are not defined in the explicitly-provided libraries. - Make the old-Ubuntu CI jobs use C++17 explicitly (previously CMake was silently ignoring the fact that the compiler didn't support C++20) - Fix errors found by the more aggressive linking mode. With these changes, it's now possible to install snmalloc and then, in another project, do something like this: ```cmake find_package(snmalloc CONFIG REQUIRED) target_link_libraries(t1 snmalloc::snmalloc) target_link_libraries(t2 snmalloc::snmallocshim-static) ``` In this example, `t1` gets all of the compile flags necessary to include snmalloc headers for its build configuration. `t2` is additionally linked to the snmalloc static shim library.
2021-09-03 13:31:05 +03:00
install(TARGETS ${name} EXPORT snmallocConfig)
endfunction()
CMake Header-Only Target (#46) Make header only library target. Use the CMake INTERFACE target type to include the build settings for snmalloc in other projects using headers only. Made warnings setting a macro for reuse.
2019-05-09 14:32:32 +03:00
Add memcpy with bounds checks. The memcpy implementation is not completely stupid but is almost certainly not as good as a carefully tuned and optimised one. Building snmalloc with FreeBSD's libc memcpy + jemalloc and with this, each 10 times, does not show a statistically significant performance difference at 95% confidence. The snmalloc version has very slightly lower median and worst-case times. This is in no way a sensible benchmark, but it serves as a smoke test for significant performance regressions. The CI self-host job now uses the checked memcpy. This also fixes an off-by-one error in the external bounds. This is triggered by ninja, so we will see breakage in CI if it is reintroduced. In debug builds, we provide a verbose error containing the address of the allocation, the base and bounds of the allocation, and a backtrace. The backtrace was broken by the CI cleanup moving the BACKTRACE_HEADER macro into the SNMALLOC_ namespace. This is also fixed. The test involves hijacking `abort`, which doesn't work everywhere. It also requires `backtrace` to work in configurations where stack traces are enabled. This is disabled in QEMU because `backtrace` appears to crash reliably in QEMU user mode. For now, in the -checks build configurations, we are hitting a slow path in the pagemap on accesses so that the pages that are `PROT_NONE` don't cause crashes. These need to be made read-only, but this requires a PAL change.
2021-08-10 13:36:53 +03:00
set(SHIM_FILES src/override/new.cc)
if (SNMALLOC_MEMCPY_BOUNDS)
list(APPEND SHIM_FILES src/override/memcpy.cc)
endif ()
add static library (#189) * add static library * leave static library on by default * fix 1mib layout * code reviews
2020-05-19 08:46:40 +03:00
if (SNMALLOC_STATIC_LIBRARY)
Add memcpy with bounds checks. The memcpy implementation is not completely stupid but is almost certainly not as good as a carefully tuned and optimised one. Building snmalloc with FreeBSD's libc memcpy + jemalloc and with this, each 10 times, does not show a statistically significant performance difference at 95% confidence. The snmalloc version has very slightly lower median and worst-case times. This is in no way a sensible benchmark, but it serves as a smoke test for significant performance regressions. The CI self-host job now uses the checked memcpy. This also fixes an off-by-one error in the external bounds. This is triggered by ninja, so we will see breakage in CI if it is reintroduced. In debug builds, we provide a verbose error containing the address of the allocation, the base and bounds of the allocation, and a backtrace. The backtrace was broken by the CI cleanup moving the BACKTRACE_HEADER macro into the SNMALLOC_ namespace. This is also fixed. The test involves hijacking `abort`, which doesn't work everywhere. It also requires `backtrace` to work in configurations where stack traces are enabled. This is disabled in QEMU because `backtrace` appears to crash reliably in QEMU user mode. For now, in the -checks build configurations, we are hitting a slow path in the pagemap on accesses so that the pages that are `PROT_NONE` don't cause crashes. These need to be made read-only, but this requires a PAL change.
2021-08-10 13:36:53 +03:00
add_shim(snmallocshim-static STATIC ${SHIM_FILES})
add static library (#189) * add static library * leave static library on by default * fix 1mib layout * code reviews
2020-05-19 08:46:40 +03:00
target_compile_definitions(snmallocshim-static PRIVATE
SNMALLOC_STATIC_LIBRARY_PREFIX=${SNMALLOC_STATIC_LIBRARY_PREFIX})
endif ()
Make snmalloc build on Windows with Clang Fixes a few places where Clang complains about Windows specific code, and also uses macros supported by Clang on Windows. A few places separating platform and compiler specific code, as MSVC and WIN32 were used interchangably previously.
2020-01-24 16:17:45 +03:00
if(NOT WIN32)
Add memcpy with bounds checks. The memcpy implementation is not completely stupid but is almost certainly not as good as a carefully tuned and optimised one. Building snmalloc with FreeBSD's libc memcpy + jemalloc and with this, each 10 times, does not show a statistically significant performance difference at 95% confidence. The snmalloc version has very slightly lower median and worst-case times. This is in no way a sensible benchmark, but it serves as a smoke test for significant performance regressions. The CI self-host job now uses the checked memcpy. This also fixes an off-by-one error in the external bounds. This is triggered by ninja, so we will see breakage in CI if it is reintroduced. In debug builds, we provide a verbose error containing the address of the allocation, the base and bounds of the allocation, and a backtrace. The backtrace was broken by the CI cleanup moving the BACKTRACE_HEADER macro into the SNMALLOC_ namespace. This is also fixed. The test involves hijacking `abort`, which doesn't work everywhere. It also requires `backtrace` to work in configurations where stack traces are enabled. This is disabled in QEMU because `backtrace` appears to crash reliably in QEMU user mode. For now, in the -checks build configurations, we are hitting a slow path in the pagemap on accesses so that the pages that are `PROT_NONE` don't cause crashes. These need to be made read-only, but this requires a PAL change.
2021-08-10 13:36:53 +03:00
add_shim(snmallocshim SHARED ${SHIM_FILES})
add_shim(snmallocshim-checks SHARED ${SHIM_FILES})
Enable guard pages in CHECK_CLIENT Change the behaviour to use PROT_NONE for reservations in CHECK_CLIENT mode. This means that we only provide access once data is actually being used.
2021-07-16 18:35:54 +03:00
target_compile_definitions(snmallocshim-checks PRIVATE SNMALLOC_CHECK_CLIENT)
CMake Header-Only Target (#46) Make header only library target. Use the CMake INTERFACE target type to include the build settings for snmalloc in other projects using headers only. Made warnings setting a macro for reuse.
2019-05-09 14:32:32 +03:00
endif()
add rust support (#113) * add rust support * move aligned_size to sizeclass.h * add static qualifier * adjust CMakeLists.txt, may broke CI tests * fix msvc's complaining on c++17 * use SNMALLOC_FAST_PATH as the decorator of aligned_size * adapt new alignment algorithm and add related test Co-authored-by: mjp41 <mattpark@microsoft.com> * fix test cases for msvc * add extra test for size == 0 * treat memory block of same sizeclass as the same * fix formatting problem * remove extra declarations Co-authored-by: Matthew Parkinson <mjp41@users.noreply.github.com>
2020-01-23 10:08:18 +03:00
if(SNMALLOC_RUST_SUPPORT)
add_shim(snmallocshim-rust STATIC src/override/rust.cc)
Major refactor of snmalloc (#343) # Pagemap The Pagemap now stores all the meta-data for the object allocation. The meta-data in the pagemap is effectively a triple of the sizeclass, the remote allocator, and a pointer to a 64 byte block of meta-data for this chunk of memory. By storing the pointer to a block, it allows the pagemap to handle multiple slab sizes without branching on the fast path. There is one entry in the pagemap per 16KiB of address space, but by using the same entry in the pagemap for 4 adjacent entries, then we can treat a 64KiB range can be treated as a single slab of allocations. This change also means there is almost no capability amplification required by the implementation on CHERI for finding meta-data. The only amplification is required, when we change the way a chunk is used to a size of object allocation. # Backend There is a second major aspect of the refactor that there is now a narrow API that abstracts the Pagemap, PAL and address space management. This should better enable the compartmentalisation and makes it easier to produce alternative backends for various research directions. This is a template parameter that can be used to specialised by the front-end in different ways. # Thread local state The thread local state has been refactored into two components, one (called 'localalloc') that is stored directly in the TLS and is constant initialised, and one that is allocated in the address space (called 'coreallloc') which is lazily created and pooled. # Difference This removes Superslabs/Medium slabs as there meta-data is now part of the pagemap.
2021-07-12 17:53:36 +03:00
add_shim(snmallocshim-checks-rust STATIC src/override/rust.cc)
Enable guard pages in CHECK_CLIENT Change the behaviour to use PROT_NONE for reservations in CHECK_CLIENT mode. This means that we only provide access once data is actually being used.
2021-07-16 18:35:54 +03:00
target_compile_definitions(snmallocshim-checks-rust PRIVATE SNMALLOC_CHECK_CLIENT)
add rust support (#113) * add rust support * move aligned_size to sizeclass.h * add static qualifier * adjust CMakeLists.txt, may broke CI tests * fix msvc's complaining on c++17 * use SNMALLOC_FAST_PATH as the decorator of aligned_size * adapt new alignment algorithm and add related test Co-authored-by: mjp41 <mattpark@microsoft.com> * fix test cases for msvc * add extra test for size == 0 * treat memory block of same sizeclass as the same * fix formatting problem * remove extra declarations Co-authored-by: Matthew Parkinson <mjp41@users.noreply.github.com>
2020-01-23 10:08:18 +03:00
endif()
CMake Header-Only Target (#46) Make header only library target. Use the CMake INTERFACE target type to include the build settings for snmalloc in other projects using headers only. Made warnings setting a macro for reuse.
2019-05-09 14:32:32 +03:00
enable_testing()
set(TESTDIR ${CMAKE_CURRENT_SOURCE_DIR}/src/test)
subdirlist(TEST_CATEGORIES ${TESTDIR})
list(REVERSE TEST_CATEGORIES)
CMake cleanup. (#384) Modernise and tidy the CMake a bit: - Use generator expressions for a lot of conditionals so that things are more reliable with multi-config generators (and less verbose). - Remove C as a needed language. None of the code was C but we were using C to test if headers worked. This was fragile because a build with `CMAKE_CXX_COMPILER` set might have checked things compiled with the system C compiler and then failed when the specified C++ compiler used different headers. - Rename the `BACKTRACE_HEADER` macro to `SNMALLOC_BACKTRACE_HEADER`. This is exposed into code that consumes snmalloc and so should be 'namespaced' (to the degree that's possible with C macros). - Clean up the options and use dependent options to hide options that are not always relevant. - Use functions instead of macros for better variable scoping. - Factor out some duplicated bits into functions. - Update to the latest way of telling CMake to use C++17 or C++20. - Migrate everything that's setting global properties to setting only per-target properties. - Link with -nostdlib++ if it's available. If it isn't, fall back to enabling the C language and linking with the C compiler. - Make the per-test log messages verbose outputs. These kept scrolling important messages off the top of the screen for me. - Make building as a header-only library a public option. - Add install targets that install all of the headers and provide a config option. This works with the header-only configuration for integration with things like vcpkg. - Fix a missing `#endif` in the `malloc_useable_size` check. This was failing co compile on all platforms because of the missing `#endif`. - Bump the minimum version to 3.14 so that we have access to target_link_options. This is necessary to use generator expressions for linker flags. - Make the linker error if the shim libraries depend on symbols that are not defined in the explicitly-provided libraries. - Make the old-Ubuntu CI jobs use C++17 explicitly (previously CMake was silently ignoring the fact that the compiler didn't support C++20) - Fix errors found by the more aggressive linking mode. With these changes, it's now possible to install snmalloc and then, in another project, do something like this: ```cmake find_package(snmalloc CONFIG REQUIRED) target_link_libraries(t1 snmalloc::snmalloc) target_link_libraries(t2 snmalloc::snmallocshim-static) ``` In this example, `t1` gets all of the compile flags necessary to include snmalloc headers for its build configuration. `t2` is additionally linked to the snmalloc static shim library.
2021-09-03 13:31:05 +03:00
if (${SNMALLOC_CLEANUP} STREQUAL THREAD_CLEANUP)
set(TEST_CLEANUP PTHREAD_DESTRUCTORS)
else ()
set(TEST_CLEANUP ${SNMALLOC_CLEANUP})
endif()
CMake Header-Only Target (#46) Make header only library target. Use the CMake INTERFACE target type to include the build settings for snmalloc in other projects using headers only. Made warnings setting a macro for reuse.
2019-05-09 14:32:32 +03:00
foreach(TEST_CATEGORY ${TEST_CATEGORIES})
CMake cleanup. (#384) Modernise and tidy the CMake a bit: - Use generator expressions for a lot of conditionals so that things are more reliable with multi-config generators (and less verbose). - Remove C as a needed language. None of the code was C but we were using C to test if headers worked. This was fragile because a build with `CMAKE_CXX_COMPILER` set might have checked things compiled with the system C compiler and then failed when the specified C++ compiler used different headers. - Rename the `BACKTRACE_HEADER` macro to `SNMALLOC_BACKTRACE_HEADER`. This is exposed into code that consumes snmalloc and so should be 'namespaced' (to the degree that's possible with C macros). - Clean up the options and use dependent options to hide options that are not always relevant. - Use functions instead of macros for better variable scoping. - Factor out some duplicated bits into functions. - Update to the latest way of telling CMake to use C++17 or C++20. - Migrate everything that's setting global properties to setting only per-target properties. - Link with -nostdlib++ if it's available. If it isn't, fall back to enabling the C language and linking with the C compiler. - Make the per-test log messages verbose outputs. These kept scrolling important messages off the top of the screen for me. - Make building as a header-only library a public option. - Add install targets that install all of the headers and provide a config option. This works with the header-only configuration for integration with things like vcpkg. - Fix a missing `#endif` in the `malloc_useable_size` check. This was failing co compile on all platforms because of the missing `#endif`. - Bump the minimum version to 3.14 so that we have access to target_link_options. This is necessary to use generator expressions for linker flags. - Make the linker error if the shim libraries depend on symbols that are not defined in the explicitly-provided libraries. - Make the old-Ubuntu CI jobs use C++17 explicitly (previously CMake was silently ignoring the fact that the compiler didn't support C++20) - Fix errors found by the more aggressive linking mode. With these changes, it's now possible to install snmalloc and then, in another project, do something like this: ```cmake find_package(snmalloc CONFIG REQUIRED) target_link_libraries(t1 snmalloc::snmalloc) target_link_libraries(t2 snmalloc::snmallocshim-static) ``` In this example, `t1` gets all of the compile flags necessary to include snmalloc headers for its build configuration. `t2` is additionally linked to the snmalloc static shim library.
2021-09-03 13:31:05 +03:00
message(STATUS "Adding ${TEST_CATEGORY} tests")
CMake Header-Only Target (#46) Make header only library target. Use the CMake INTERFACE target type to include the build settings for snmalloc in other projects using headers only. Made warnings setting a macro for reuse.
2019-05-09 14:32:32 +03:00
subdirlist(TESTS ${TESTDIR}/${TEST_CATEGORY})
foreach(TEST ${TESTS})
Natural alignment for USE_MALLOC (#248) * Add concept of natural alignment to tests. snmalloc naturally aligns blocks very heavily, so that the largest power-of-two in the rounded size is the alignment. This checks that in the test, and provides a method for finding the natural alignment of a block. * Improve USE_MALLOC to provide alignment snmalloc provides a lot of alginment guarantees. This ensures that when we pass through to the system allocator we still get those alignment guarantees. The commit also fixes the tests to work with USE_MALLOC, and builds a set of unit tests for ctest to check behaviour.
2020-09-28 12:08:19 +03:00
if (WIN32
OR (CMAKE_SYSTEM_NAME STREQUAL NetBSD)
DragonFly support (userland). - Close to OpenBSD as there is no malloc*size api nor arbritrary alignment support. - Like FreeBSD, MAP_NORESERVE never had been implemented even tough still present in the header but not mentioned in the man page, FreeBSD has reserved the value for another later usage seems DragonFly has just out of sync header.
2020-10-02 20:15:28 +03:00
OR (CMAKE_SYSTEM_NAME STREQUAL OpenBSD)
Solaris based system build fix. malloc_usable_size or similar unsupported.
2020-11-18 20:13:21 +03:00
OR (CMAKE_SYSTEM_NAME STREQUAL DragonFly)
OR (CMAKE_SYSTEM_NAME STREQUAL SunOS))
Natural alignment for USE_MALLOC (#248) * Add concept of natural alignment to tests. snmalloc naturally aligns blocks very heavily, so that the largest power-of-two in the rounded size is the alignment. This checks that in the test, and provides a method for finding the natural alignment of a block. * Improve USE_MALLOC to provide alignment snmalloc provides a lot of alginment guarantees. This ensures that when we pass through to the system allocator we still get those alignment guarantees. The commit also fixes the tests to work with USE_MALLOC, and builds a set of unit tests for ctest to check behaviour.
2020-09-28 12:08:19 +03:00
# Windows does not support aligned allocation well enough
# for pass through.
DragonFly support (userland). - Close to OpenBSD as there is no malloc*size api nor arbritrary alignment support. - Like FreeBSD, MAP_NORESERVE never had been implemented even tough still present in the header but not mentioned in the man page, FreeBSD has reserved the value for another later usage seems DragonFly has just out of sync header.
2020-10-02 20:15:28 +03:00
# NetBSD, OpenBSD and DragonFlyBSD do not support malloc*size calls.
Major refactor of snmalloc (#343) # Pagemap The Pagemap now stores all the meta-data for the object allocation. The meta-data in the pagemap is effectively a triple of the sizeclass, the remote allocator, and a pointer to a 64 byte block of meta-data for this chunk of memory. By storing the pointer to a block, it allows the pagemap to handle multiple slab sizes without branching on the fast path. There is one entry in the pagemap per 16KiB of address space, but by using the same entry in the pagemap for 4 adjacent entries, then we can treat a 64KiB range can be treated as a single slab of allocations. This change also means there is almost no capability amplification required by the implementation on CHERI for finding meta-data. The only amplification is required, when we change the way a chunk is used to a size of object allocation. # Backend There is a second major aspect of the refactor that there is now a narrow API that abstracts the Pagemap, PAL and address space management. This should better enable the compartmentalisation and makes it easier to produce alternative backends for various research directions. This is a template parameter that can be used to specialised by the front-end in different ways. # Thread local state The thread local state has been refactored into two components, one (called 'localalloc') that is stored directly in the TLS and is constant initialised, and one that is allocated in the address space (called 'coreallloc') which is lazily created and pooled. # Difference This removes Superslabs/Medium slabs as there meta-data is now part of the pagemap.
2021-07-12 17:53:36 +03:00
set(FLAVOURS fast;check)
Natural alignment for USE_MALLOC (#248) * Add concept of natural alignment to tests. snmalloc naturally aligns blocks very heavily, so that the largest power-of-two in the rounded size is the alignment. This checks that in the test, and provides a method for finding the natural alignment of a block. * Improve USE_MALLOC to provide alignment snmalloc provides a lot of alginment guarantees. This ensures that when we pass through to the system allocator we still get those alignment guarantees. The commit also fixes the tests to work with USE_MALLOC, and builds a set of unit tests for ctest to check behaviour.
2020-09-28 12:08:19 +03:00
else()
Enable passthrough to an underlying allocator This passes though to an underlying allocator rather than using snmalloc. This is required for using ASAN in Verona. Verona takes a close coupling with snmalloc, but to use with ASAN would require a more work, so we pass to the system allocator in this case.
2021-08-26 12:04:44 +03:00
set(FLAVOURS fast;check;malloc)
Natural alignment for USE_MALLOC (#248) * Add concept of natural alignment to tests. snmalloc naturally aligns blocks very heavily, so that the largest power-of-two in the rounded size is the alignment. This checks that in the test, and provides a method for finding the natural alignment of a block. * Improve USE_MALLOC to provide alignment snmalloc provides a lot of alginment guarantees. This ensures that when we pass through to the system allocator we still get those alignment guarantees. The commit also fixes the tests to work with USE_MALLOC, and builds a set of unit tests for ctest to check behaviour.
2020-09-28 12:08:19 +03:00
endif()
Randomise slab allocation pattern (#304) The slab allocation pattern is randomised based on the deallocation pattern. This achieved by using two queues to enqueue free elements onto. We pick "randomly", which queue to add to, and then when we take the free_queue to use, we splice the two queues together.
2021-03-24 19:12:22 +03:00
foreach(FLAVOUR ${FLAVOURS})
CMake Header-Only Target (#46) Make header only library target. Use the CMake INTERFACE target type to include the build settings for snmalloc in other projects using headers only. Made warnings setting a macro for reuse.
2019-05-09 14:32:32 +03:00
unset(SRC)
aux_source_directory(${TESTDIR}/${TEST_CATEGORY}/${TEST} SRC)
Randomise slab allocation pattern (#304) The slab allocation pattern is randomised based on the deallocation pattern. This achieved by using two queues to enqueue free elements onto. We pick "randomly", which queue to add to, and then when we take the free_queue to use, we splice the two queues together.
2021-03-24 19:12:22 +03:00
set(TESTNAME "${TEST_CATEGORY}-${TEST}-${FLAVOUR}")
CMake Header-Only Target (#46) Make header only library target. Use the CMake INTERFACE target type to include the build settings for snmalloc in other projects using headers only. Made warnings setting a macro for reuse.
2019-05-09 14:32:32 +03:00
Remove new from examples as they don't use it.
2019-08-13 12:56:54 +03:00
add_executable(${TESTNAME} ${SRC})
CMake cleanup. (#384) Modernise and tidy the CMake a bit: - Use generator expressions for a lot of conditionals so that things are more reliable with multi-config generators (and less verbose). - Remove C as a needed language. None of the code was C but we were using C to test if headers worked. This was fragile because a build with `CMAKE_CXX_COMPILER` set might have checked things compiled with the system C compiler and then failed when the specified C++ compiler used different headers. - Rename the `BACKTRACE_HEADER` macro to `SNMALLOC_BACKTRACE_HEADER`. This is exposed into code that consumes snmalloc and so should be 'namespaced' (to the degree that's possible with C macros). - Clean up the options and use dependent options to hide options that are not always relevant. - Use functions instead of macros for better variable scoping. - Factor out some duplicated bits into functions. - Update to the latest way of telling CMake to use C++17 or C++20. - Migrate everything that's setting global properties to setting only per-target properties. - Link with -nostdlib++ if it's available. If it isn't, fall back to enabling the C language and linking with the C compiler. - Make the per-test log messages verbose outputs. These kept scrolling important messages off the top of the screen for me. - Make building as a header-only library a public option. - Add install targets that install all of the headers and provide a config option. This works with the header-only configuration for integration with things like vcpkg. - Fix a missing `#endif` in the `malloc_useable_size` check. This was failing co compile on all platforms because of the missing `#endif`. - Bump the minimum version to 3.14 so that we have access to target_link_options. This is necessary to use generator expressions for linker flags. - Make the linker error if the shim libraries depend on symbols that are not defined in the explicitly-provided libraries. - Make the old-Ubuntu CI jobs use C++17 explicitly (previously CMake was silently ignoring the fact that the compiler didn't support C++20) - Fix errors found by the more aggressive linking mode. With these changes, it's now possible to install snmalloc and then, in another project, do something like this: ```cmake find_package(snmalloc CONFIG REQUIRED) target_link_libraries(t1 snmalloc::snmalloc) target_link_libraries(t2 snmalloc::snmallocshim-static) ``` In this example, `t1` gets all of the compile flags necessary to include snmalloc headers for its build configuration. `t2` is additionally linked to the snmalloc static shim library.
2021-09-03 13:31:05 +03:00
add_warning_flags(${TESTNAME})
Change behaviour of USE_POSIX_COMMIT_CHECKS The previous setting applied USE_POSIX_COMMIT_CHECKS to snmalloc if it was a non-release build. This caused issues in CCF virtual mode, as it was being built in RelWithDebInfo. This commit changes the flag to be applied less, but for tests to always apply the setting independent of build type. This means that when snmalloc is being used as a library, it will be off, unless explicitly requested.
2021-02-19 12:07:42 +03:00
Randomise slab allocation pattern (#304) The slab allocation pattern is randomised based on the deallocation pattern. This achieved by using two queues to enqueue free elements onto. We pick "randomly", which queue to add to, and then when we take the free_queue to use, we splice the two queues together.
2021-03-24 19:12:22 +03:00
if (${FLAVOUR} STREQUAL "malloc")
Natural alignment for USE_MALLOC (#248) * Add concept of natural alignment to tests. snmalloc naturally aligns blocks very heavily, so that the largest power-of-two in the rounded size is the alignment. This checks that in the test, and provides a method for finding the natural alignment of a block. * Improve USE_MALLOC to provide alignment snmalloc provides a lot of alginment guarantees. This ensures that when we pass through to the system allocator we still get those alignment guarantees. The commit also fixes the tests to work with USE_MALLOC, and builds a set of unit tests for ctest to check behaviour.
2020-09-28 12:08:19 +03:00
target_compile_definitions(${TESTNAME} PRIVATE SNMALLOC_PASS_THROUGH)
endif()
Randomise slab allocation pattern (#304) The slab allocation pattern is randomised based on the deallocation pattern. This achieved by using two queues to enqueue free elements onto. We pick "randomly", which queue to add to, and then when we take the free_queue to use, we splice the two queues together.
2021-03-24 19:12:22 +03:00
if (${FLAVOUR} STREQUAL "check")
Enable guard pages in CHECK_CLIENT Change the behaviour to use PROT_NONE for reservations in CHECK_CLIENT mode. This means that we only provide access once data is actually being used.
2021-07-16 18:35:54 +03:00
target_compile_definitions(${TESTNAME} PRIVATE SNMALLOC_CHECK_CLIENT)
Randomise slab allocation pattern (#304) The slab allocation pattern is randomised based on the deallocation pattern. This achieved by using two queues to enqueue free elements onto. We pick "randomly", which queue to add to, and then when we take the free_queue to use, we splice the two queues together.
2021-03-24 19:12:22 +03:00
endif()
CMake cleanup. (#384) Modernise and tidy the CMake a bit: - Use generator expressions for a lot of conditionals so that things are more reliable with multi-config generators (and less verbose). - Remove C as a needed language. None of the code was C but we were using C to test if headers worked. This was fragile because a build with `CMAKE_CXX_COMPILER` set might have checked things compiled with the system C compiler and then failed when the specified C++ compiler used different headers. - Rename the `BACKTRACE_HEADER` macro to `SNMALLOC_BACKTRACE_HEADER`. This is exposed into code that consumes snmalloc and so should be 'namespaced' (to the degree that's possible with C macros). - Clean up the options and use dependent options to hide options that are not always relevant. - Use functions instead of macros for better variable scoping. - Factor out some duplicated bits into functions. - Update to the latest way of telling CMake to use C++17 or C++20. - Migrate everything that's setting global properties to setting only per-target properties. - Link with -nostdlib++ if it's available. If it isn't, fall back to enabling the C language and linking with the C compiler. - Make the per-test log messages verbose outputs. These kept scrolling important messages off the top of the screen for me. - Make building as a header-only library a public option. - Add install targets that install all of the headers and provide a config option. This works with the header-only configuration for integration with things like vcpkg. - Fix a missing `#endif` in the `malloc_useable_size` check. This was failing co compile on all platforms because of the missing `#endif`. - Bump the minimum version to 3.14 so that we have access to target_link_options. This is necessary to use generator expressions for linker flags. - Make the linker error if the shim libraries depend on symbols that are not defined in the explicitly-provided libraries. - Make the old-Ubuntu CI jobs use C++17 explicitly (previously CMake was silently ignoring the fact that the compiler didn't support C++20) - Fix errors found by the more aggressive linking mode. With these changes, it's now possible to install snmalloc and then, in another project, do something like this: ```cmake find_package(snmalloc CONFIG REQUIRED) target_link_libraries(t1 snmalloc::snmalloc) target_link_libraries(t2 snmalloc::snmallocshim-static) ``` In this example, `t1` gets all of the compile flags necessary to include snmalloc headers for its build configuration. `t2` is additionally linked to the snmalloc static shim library.
2021-09-03 13:31:05 +03:00
target_link_libraries(${TESTNAME} snmalloc)
target_compile_definitions(${TESTNAME} PRIVATE "SNMALLOC_USE_${TEST_CLEANUP}")
CMake Header-Only Target (#46) Make header only library target. Use the CMake INTERFACE target type to include the build settings for snmalloc in other projects using headers only. Made warnings setting a macro for reuse.
2019-05-09 14:32:32 +03:00
if (${TEST} MATCHES "release-.*")
CMake cleanup. (#384) Modernise and tidy the CMake a bit: - Use generator expressions for a lot of conditionals so that things are more reliable with multi-config generators (and less verbose). - Remove C as a needed language. None of the code was C but we were using C to test if headers worked. This was fragile because a build with `CMAKE_CXX_COMPILER` set might have checked things compiled with the system C compiler and then failed when the specified C++ compiler used different headers. - Rename the `BACKTRACE_HEADER` macro to `SNMALLOC_BACKTRACE_HEADER`. This is exposed into code that consumes snmalloc and so should be 'namespaced' (to the degree that's possible with C macros). - Clean up the options and use dependent options to hide options that are not always relevant. - Use functions instead of macros for better variable scoping. - Factor out some duplicated bits into functions. - Update to the latest way of telling CMake to use C++17 or C++20. - Migrate everything that's setting global properties to setting only per-target properties. - Link with -nostdlib++ if it's available. If it isn't, fall back to enabling the C language and linking with the C compiler. - Make the per-test log messages verbose outputs. These kept scrolling important messages off the top of the screen for me. - Make building as a header-only library a public option. - Add install targets that install all of the headers and provide a config option. This works with the header-only configuration for integration with things like vcpkg. - Fix a missing `#endif` in the `malloc_useable_size` check. This was failing co compile on all platforms because of the missing `#endif`. - Bump the minimum version to 3.14 so that we have access to target_link_options. This is necessary to use generator expressions for linker flags. - Make the linker error if the shim libraries depend on symbols that are not defined in the explicitly-provided libraries. - Make the old-Ubuntu CI jobs use C++17 explicitly (previously CMake was silently ignoring the fact that the compiler didn't support C++20) - Fix errors found by the more aggressive linking mode. With these changes, it's now possible to install snmalloc and then, in another project, do something like this: ```cmake find_package(snmalloc CONFIG REQUIRED) target_link_libraries(t1 snmalloc::snmalloc) target_link_libraries(t2 snmalloc::snmallocshim-static) ``` In this example, `t1` gets all of the compile flags necessary to include snmalloc headers for its build configuration. `t2` is additionally linked to the snmalloc static shim library.
2021-09-03 13:31:05 +03:00
message(VERBOSE "Adding test: ${TESTNAME} only for release configs")
CMake Header-Only Target (#46) Make header only library target. Use the CMake INTERFACE target type to include the build settings for snmalloc in other projects using headers only. Made warnings setting a macro for reuse.
2019-05-09 14:32:32 +03:00
add_test(NAME ${TESTNAME} COMMAND ${TESTNAME} CONFIGURATIONS "Release")
else()
CMake cleanup. (#384) Modernise and tidy the CMake a bit: - Use generator expressions for a lot of conditionals so that things are more reliable with multi-config generators (and less verbose). - Remove C as a needed language. None of the code was C but we were using C to test if headers worked. This was fragile because a build with `CMAKE_CXX_COMPILER` set might have checked things compiled with the system C compiler and then failed when the specified C++ compiler used different headers. - Rename the `BACKTRACE_HEADER` macro to `SNMALLOC_BACKTRACE_HEADER`. This is exposed into code that consumes snmalloc and so should be 'namespaced' (to the degree that's possible with C macros). - Clean up the options and use dependent options to hide options that are not always relevant. - Use functions instead of macros for better variable scoping. - Factor out some duplicated bits into functions. - Update to the latest way of telling CMake to use C++17 or C++20. - Migrate everything that's setting global properties to setting only per-target properties. - Link with -nostdlib++ if it's available. If it isn't, fall back to enabling the C language and linking with the C compiler. - Make the per-test log messages verbose outputs. These kept scrolling important messages off the top of the screen for me. - Make building as a header-only library a public option. - Add install targets that install all of the headers and provide a config option. This works with the header-only configuration for integration with things like vcpkg. - Fix a missing `#endif` in the `malloc_useable_size` check. This was failing co compile on all platforms because of the missing `#endif`. - Bump the minimum version to 3.14 so that we have access to target_link_options. This is necessary to use generator expressions for linker flags. - Make the linker error if the shim libraries depend on symbols that are not defined in the explicitly-provided libraries. - Make the old-Ubuntu CI jobs use C++17 explicitly (previously CMake was silently ignoring the fact that the compiler didn't support C++20) - Fix errors found by the more aggressive linking mode. With these changes, it's now possible to install snmalloc and then, in another project, do something like this: ```cmake find_package(snmalloc CONFIG REQUIRED) target_link_libraries(t1 snmalloc::snmalloc) target_link_libraries(t2 snmalloc::snmallocshim-static) ``` In this example, `t1` gets all of the compile flags necessary to include snmalloc headers for its build configuration. `t2` is additionally linked to the snmalloc static shim library.
2021-09-03 13:31:05 +03:00
message(VERBOSE "Adding test: ${TESTNAME}")
CMake Header-Only Target (#46) Make header only library target. Use the CMake INTERFACE target type to include the build settings for snmalloc in other projects using headers only. Made warnings setting a macro for reuse.
2019-05-09 14:32:32 +03:00
add_test(${TESTNAME} ${TESTNAME})
endif()
if (${TEST_CATEGORY} MATCHES "perf")
CMake cleanup. (#384) Modernise and tidy the CMake a bit: - Use generator expressions for a lot of conditionals so that things are more reliable with multi-config generators (and less verbose). - Remove C as a needed language. None of the code was C but we were using C to test if headers worked. This was fragile because a build with `CMAKE_CXX_COMPILER` set might have checked things compiled with the system C compiler and then failed when the specified C++ compiler used different headers. - Rename the `BACKTRACE_HEADER` macro to `SNMALLOC_BACKTRACE_HEADER`. This is exposed into code that consumes snmalloc and so should be 'namespaced' (to the degree that's possible with C macros). - Clean up the options and use dependent options to hide options that are not always relevant. - Use functions instead of macros for better variable scoping. - Factor out some duplicated bits into functions. - Update to the latest way of telling CMake to use C++17 or C++20. - Migrate everything that's setting global properties to setting only per-target properties. - Link with -nostdlib++ if it's available. If it isn't, fall back to enabling the C language and linking with the C compiler. - Make the per-test log messages verbose outputs. These kept scrolling important messages off the top of the screen for me. - Make building as a header-only library a public option. - Add install targets that install all of the headers and provide a config option. This works with the header-only configuration for integration with things like vcpkg. - Fix a missing `#endif` in the `malloc_useable_size` check. This was failing co compile on all platforms because of the missing `#endif`. - Bump the minimum version to 3.14 so that we have access to target_link_options. This is necessary to use generator expressions for linker flags. - Make the linker error if the shim libraries depend on symbols that are not defined in the explicitly-provided libraries. - Make the old-Ubuntu CI jobs use C++17 explicitly (previously CMake was silently ignoring the fact that the compiler didn't support C++20) - Fix errors found by the more aggressive linking mode. With these changes, it's now possible to install snmalloc and then, in another project, do something like this: ```cmake find_package(snmalloc CONFIG REQUIRED) target_link_libraries(t1 snmalloc::snmalloc) target_link_libraries(t2 snmalloc::snmallocshim-static) ``` In this example, `t1` gets all of the compile flags necessary to include snmalloc headers for its build configuration. `t2` is additionally linked to the snmalloc static shim library.
2021-09-03 13:31:05 +03:00
message(VERBOSE "Single threaded test: ${TESTNAME}")
Bump the perf tests up to counting as 4 tests. They're failing on macOS and 32-bit Windows CI, but not locally on 32-bit Windows, so probably running out of memory...
2019-07-05 15:03:58 +03:00
set_tests_properties(${TESTNAME} PROPERTIES PROCESSORS 4)
CMake Header-Only Target (#46) Make header only library target. Use the CMake INTERFACE target type to include the build settings for snmalloc in other projects using headers only. Made warnings setting a macro for reuse.
2019-05-09 14:32:32 +03:00
endif()
Make snmalloc build on Windows with Clang Fixes a few places where Clang complains about Windows specific code, and also uses macros supported by Clang on Windows. A few places separating platform and compiler specific code, as MSVC and WIN32 were used interchangably previously.
2020-01-24 16:17:45 +03:00
if(WIN32)
Reduce parallism in tests If some tests on Windows are co-scheduled, then they run out of commit space and crash. For example, in func-memory, test_external_pointer_large can cause the small CI machines to run out of commit space on Windows.
2019-08-14 16:21:35 +03:00
# On Windows these tests use a lot of memory as it doesn't support
# lazy commit.
if (${TEST} MATCHES "two_alloc_types")
CMake cleanup. (#384) Modernise and tidy the CMake a bit: - Use generator expressions for a lot of conditionals so that things are more reliable with multi-config generators (and less verbose). - Remove C as a needed language. None of the code was C but we were using C to test if headers worked. This was fragile because a build with `CMAKE_CXX_COMPILER` set might have checked things compiled with the system C compiler and then failed when the specified C++ compiler used different headers. - Rename the `BACKTRACE_HEADER` macro to `SNMALLOC_BACKTRACE_HEADER`. This is exposed into code that consumes snmalloc and so should be 'namespaced' (to the degree that's possible with C macros). - Clean up the options and use dependent options to hide options that are not always relevant. - Use functions instead of macros for better variable scoping. - Factor out some duplicated bits into functions. - Update to the latest way of telling CMake to use C++17 or C++20. - Migrate everything that's setting global properties to setting only per-target properties. - Link with -nostdlib++ if it's available. If it isn't, fall back to enabling the C language and linking with the C compiler. - Make the per-test log messages verbose outputs. These kept scrolling important messages off the top of the screen for me. - Make building as a header-only library a public option. - Add install targets that install all of the headers and provide a config option. This works with the header-only configuration for integration with things like vcpkg. - Fix a missing `#endif` in the `malloc_useable_size` check. This was failing co compile on all platforms because of the missing `#endif`. - Bump the minimum version to 3.14 so that we have access to target_link_options. This is necessary to use generator expressions for linker flags. - Make the linker error if the shim libraries depend on symbols that are not defined in the explicitly-provided libraries. - Make the old-Ubuntu CI jobs use C++17 explicitly (previously CMake was silently ignoring the fact that the compiler didn't support C++20) - Fix errors found by the more aggressive linking mode. With these changes, it's now possible to install snmalloc and then, in another project, do something like this: ```cmake find_package(snmalloc CONFIG REQUIRED) target_link_libraries(t1 snmalloc::snmalloc) target_link_libraries(t2 snmalloc::snmallocshim-static) ``` In this example, `t1` gets all of the compile flags necessary to include snmalloc headers for its build configuration. `t2` is additionally linked to the snmalloc static shim library.
2021-09-03 13:31:05 +03:00
message(VERBOSE "Single threaded test: ${TESTNAME}")
Reduce parallism in tests If some tests on Windows are co-scheduled, then they run out of commit space and crash. For example, in func-memory, test_external_pointer_large can cause the small CI machines to run out of commit space on Windows.
2019-08-14 16:21:35 +03:00
set_tests_properties(${TESTNAME} PROPERTIES PROCESSORS 4)
endif()
if (${TEST} MATCHES "fixed_region")
CMake cleanup. (#384) Modernise and tidy the CMake a bit: - Use generator expressions for a lot of conditionals so that things are more reliable with multi-config generators (and less verbose). - Remove C as a needed language. None of the code was C but we were using C to test if headers worked. This was fragile because a build with `CMAKE_CXX_COMPILER` set might have checked things compiled with the system C compiler and then failed when the specified C++ compiler used different headers. - Rename the `BACKTRACE_HEADER` macro to `SNMALLOC_BACKTRACE_HEADER`. This is exposed into code that consumes snmalloc and so should be 'namespaced' (to the degree that's possible with C macros). - Clean up the options and use dependent options to hide options that are not always relevant. - Use functions instead of macros for better variable scoping. - Factor out some duplicated bits into functions. - Update to the latest way of telling CMake to use C++17 or C++20. - Migrate everything that's setting global properties to setting only per-target properties. - Link with -nostdlib++ if it's available. If it isn't, fall back to enabling the C language and linking with the C compiler. - Make the per-test log messages verbose outputs. These kept scrolling important messages off the top of the screen for me. - Make building as a header-only library a public option. - Add install targets that install all of the headers and provide a config option. This works with the header-only configuration for integration with things like vcpkg. - Fix a missing `#endif` in the `malloc_useable_size` check. This was failing co compile on all platforms because of the missing `#endif`. - Bump the minimum version to 3.14 so that we have access to target_link_options. This is necessary to use generator expressions for linker flags. - Make the linker error if the shim libraries depend on symbols that are not defined in the explicitly-provided libraries. - Make the old-Ubuntu CI jobs use C++17 explicitly (previously CMake was silently ignoring the fact that the compiler didn't support C++20) - Fix errors found by the more aggressive linking mode. With these changes, it's now possible to install snmalloc and then, in another project, do something like this: ```cmake find_package(snmalloc CONFIG REQUIRED) target_link_libraries(t1 snmalloc::snmalloc) target_link_libraries(t2 snmalloc::snmallocshim-static) ``` In this example, `t1` gets all of the compile flags necessary to include snmalloc headers for its build configuration. `t2` is additionally linked to the snmalloc static shim library.
2021-09-03 13:31:05 +03:00
message(VERBOSE "Single threaded test: ${TESTNAME}")
Reduce parallism in tests If some tests on Windows are co-scheduled, then they run out of commit space and crash. For example, in func-memory, test_external_pointer_large can cause the small CI machines to run out of commit space on Windows.
2019-08-14 16:21:35 +03:00
set_tests_properties(${TESTNAME} PROPERTIES PROCESSORS 4)
endif()
if (${TEST} MATCHES "memory")
CMake cleanup. (#384) Modernise and tidy the CMake a bit: - Use generator expressions for a lot of conditionals so that things are more reliable with multi-config generators (and less verbose). - Remove C as a needed language. None of the code was C but we were using C to test if headers worked. This was fragile because a build with `CMAKE_CXX_COMPILER` set might have checked things compiled with the system C compiler and then failed when the specified C++ compiler used different headers. - Rename the `BACKTRACE_HEADER` macro to `SNMALLOC_BACKTRACE_HEADER`. This is exposed into code that consumes snmalloc and so should be 'namespaced' (to the degree that's possible with C macros). - Clean up the options and use dependent options to hide options that are not always relevant. - Use functions instead of macros for better variable scoping. - Factor out some duplicated bits into functions. - Update to the latest way of telling CMake to use C++17 or C++20. - Migrate everything that's setting global properties to setting only per-target properties. - Link with -nostdlib++ if it's available. If it isn't, fall back to enabling the C language and linking with the C compiler. - Make the per-test log messages verbose outputs. These kept scrolling important messages off the top of the screen for me. - Make building as a header-only library a public option. - Add install targets that install all of the headers and provide a config option. This works with the header-only configuration for integration with things like vcpkg. - Fix a missing `#endif` in the `malloc_useable_size` check. This was failing co compile on all platforms because of the missing `#endif`. - Bump the minimum version to 3.14 so that we have access to target_link_options. This is necessary to use generator expressions for linker flags. - Make the linker error if the shim libraries depend on symbols that are not defined in the explicitly-provided libraries. - Make the old-Ubuntu CI jobs use C++17 explicitly (previously CMake was silently ignoring the fact that the compiler didn't support C++20) - Fix errors found by the more aggressive linking mode. With these changes, it's now possible to install snmalloc and then, in another project, do something like this: ```cmake find_package(snmalloc CONFIG REQUIRED) target_link_libraries(t1 snmalloc::snmalloc) target_link_libraries(t2 snmalloc::snmallocshim-static) ``` In this example, `t1` gets all of the compile flags necessary to include snmalloc headers for its build configuration. `t2` is additionally linked to the snmalloc static shim library.
2021-09-03 13:31:05 +03:00
message(VERBOSE "Single threaded test: ${TESTNAME}")
Reduce parallism in tests If some tests on Windows are co-scheduled, then they run out of commit space and crash. For example, in func-memory, test_external_pointer_large can cause the small CI machines to run out of commit space on Windows.
2019-08-14 16:21:35 +03:00
set_tests_properties(${TESTNAME} PROPERTIES PROCESSORS 4)
endif()
endif()
Major refactor of snmalloc (#343) # Pagemap The Pagemap now stores all the meta-data for the object allocation. The meta-data in the pagemap is effectively a triple of the sizeclass, the remote allocator, and a pointer to a 64 byte block of meta-data for this chunk of memory. By storing the pointer to a block, it allows the pagemap to handle multiple slab sizes without branching on the fast path. There is one entry in the pagemap per 16KiB of address space, but by using the same entry in the pagemap for 4 adjacent entries, then we can treat a 64KiB range can be treated as a single slab of allocations. This change also means there is almost no capability amplification required by the implementation on CHERI for finding meta-data. The only amplification is required, when we change the way a chunk is used to a size of object allocation. # Backend There is a second major aspect of the refactor that there is now a narrow API that abstracts the Pagemap, PAL and address space management. This should better enable the compartmentalisation and makes it easier to produce alternative backends for various research directions. This is a template parameter that can be used to specialised by the front-end in different ways. # Thread local state The thread local state has been refactored into two components, one (called 'localalloc') that is stored directly in the TLS and is constant initialised, and one that is allocated in the address space (called 'coreallloc') which is lazily created and pooled. # Difference This removes Superslabs/Medium slabs as there meta-data is now part of the pagemap.
2021-07-12 17:53:36 +03:00
# if (${TEST_CATEGORY} MATCHES "func")
# target_compile_definitions(${TESTNAME} PRIVATE -DUSE_SNMALLOC_STATS)
# endif ()
CMake Header-Only Target (#46) Make header only library target. Use the CMake INTERFACE target type to include the build settings for snmalloc in other projects using headers only. Made warnings setting a macro for reuse.
2019-05-09 14:32:32 +03:00
endforeach()
Build both 1MiB and 16MiB tests
2019-01-21 20:53:52 +03:00
endforeach()
Initial commit of snmalloc History squashed from internal development. Internal history has commit hash: e27a0e485c44a5003a802de2661ce3b21e120316
2019-01-15 17:17:55 +03:00
endforeach()
CMake Header-Only Target (#46) Make header only library target. Use the CMake INTERFACE target type to include the build settings for snmalloc in other projects using headers only. Made warnings setting a macro for reuse.
2019-05-09 14:32:32 +03:00
Make clangformat a macro to allow sharing.
2019-05-22 15:20:43 +03:00
clangformat_targets()
use clangformat cmake target
2019-05-18 13:54:35 +03:00
endif()
CMake cleanup. (#384) Modernise and tidy the CMake a bit: - Use generator expressions for a lot of conditionals so that things are more reliable with multi-config generators (and less verbose). - Remove C as a needed language. None of the code was C but we were using C to test if headers worked. This was fragile because a build with `CMAKE_CXX_COMPILER` set might have checked things compiled with the system C compiler and then failed when the specified C++ compiler used different headers. - Rename the `BACKTRACE_HEADER` macro to `SNMALLOC_BACKTRACE_HEADER`. This is exposed into code that consumes snmalloc and so should be 'namespaced' (to the degree that's possible with C macros). - Clean up the options and use dependent options to hide options that are not always relevant. - Use functions instead of macros for better variable scoping. - Factor out some duplicated bits into functions. - Update to the latest way of telling CMake to use C++17 or C++20. - Migrate everything that's setting global properties to setting only per-target properties. - Link with -nostdlib++ if it's available. If it isn't, fall back to enabling the C language and linking with the C compiler. - Make the per-test log messages verbose outputs. These kept scrolling important messages off the top of the screen for me. - Make building as a header-only library a public option. - Add install targets that install all of the headers and provide a config option. This works with the header-only configuration for integration with things like vcpkg. - Fix a missing `#endif` in the `malloc_useable_size` check. This was failing co compile on all platforms because of the missing `#endif`. - Bump the minimum version to 3.14 so that we have access to target_link_options. This is necessary to use generator expressions for linker flags. - Make the linker error if the shim libraries depend on symbols that are not defined in the explicitly-provided libraries. - Make the old-Ubuntu CI jobs use C++17 explicitly (previously CMake was silently ignoring the fact that the compiler didn't support C++20) - Fix errors found by the more aggressive linking mode. With these changes, it's now possible to install snmalloc and then, in another project, do something like this: ```cmake find_package(snmalloc CONFIG REQUIRED) target_link_libraries(t1 snmalloc::snmalloc) target_link_libraries(t2 snmalloc::snmallocshim-static) ``` In this example, `t1` gets all of the compile flags necessary to include snmalloc headers for its build configuration. `t2` is additionally linked to the snmalloc static shim library.
2021-09-03 13:31:05 +03:00
install(TARGETS snmalloc EXPORT snmallocConfig)
install(TARGETS EXPORT snmallocConfig DESTINATION ${CMAKE_INSTALL_LIBDIR}
PUBLIC_HEADER DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/snmalloc)
install(DIRECTORY src/aal DESTINATION include/snmalloc)
install(DIRECTORY src/ds DESTINATION include/snmalloc)
install(DIRECTORY src/override DESTINATION include/snmalloc)
install(DIRECTORY src/backend DESTINATION include/snmalloc)
install(DIRECTORY src/mem DESTINATION include/snmalloc)
install(DIRECTORY src/pal DESTINATION include/snmalloc)
Install test headers. Verona uses these.
2021-09-06 18:28:03 +03:00
install(FILES
src/test/measuretime.h
src/test/opt.h
src/test/setup.h
src/test/usage.h
src/test/xoroshiro.h
DESTINATION include/snmalloc/test
)
CMake cleanup. (#384) Modernise and tidy the CMake a bit: - Use generator expressions for a lot of conditionals so that things are more reliable with multi-config generators (and less verbose). - Remove C as a needed language. None of the code was C but we were using C to test if headers worked. This was fragile because a build with `CMAKE_CXX_COMPILER` set might have checked things compiled with the system C compiler and then failed when the specified C++ compiler used different headers. - Rename the `BACKTRACE_HEADER` macro to `SNMALLOC_BACKTRACE_HEADER`. This is exposed into code that consumes snmalloc and so should be 'namespaced' (to the degree that's possible with C macros). - Clean up the options and use dependent options to hide options that are not always relevant. - Use functions instead of macros for better variable scoping. - Factor out some duplicated bits into functions. - Update to the latest way of telling CMake to use C++17 or C++20. - Migrate everything that's setting global properties to setting only per-target properties. - Link with -nostdlib++ if it's available. If it isn't, fall back to enabling the C language and linking with the C compiler. - Make the per-test log messages verbose outputs. These kept scrolling important messages off the top of the screen for me. - Make building as a header-only library a public option. - Add install targets that install all of the headers and provide a config option. This works with the header-only configuration for integration with things like vcpkg. - Fix a missing `#endif` in the `malloc_useable_size` check. This was failing co compile on all platforms because of the missing `#endif`. - Bump the minimum version to 3.14 so that we have access to target_link_options. This is necessary to use generator expressions for linker flags. - Make the linker error if the shim libraries depend on symbols that are not defined in the explicitly-provided libraries. - Make the old-Ubuntu CI jobs use C++17 explicitly (previously CMake was silently ignoring the fact that the compiler didn't support C++20) - Fix errors found by the more aggressive linking mode. With these changes, it's now possible to install snmalloc and then, in another project, do something like this: ```cmake find_package(snmalloc CONFIG REQUIRED) target_link_libraries(t1 snmalloc::snmalloc) target_link_libraries(t2 snmalloc::snmallocshim-static) ``` In this example, `t1` gets all of the compile flags necessary to include snmalloc headers for its build configuration. `t2` is additionally linked to the snmalloc static shim library.
2021-09-03 13:31:05 +03:00
install(FILES src/snmalloc.h;src/snmalloc_core.h;src/snmalloc_front.h DESTINATION include/snmalloc)
install(EXPORT snmallocConfig
FILE snmalloc-config.cmake
NAMESPACE snmalloc::
DESTINATION "share/snmalloc"
)