The current situation is suboptimal, where we have the same goop
repeated in multiple files, and where things kinda sorta work out fine
thanks to the linker for files that would have been forbidden, except
when the linker doesn't do its job, which apparently happen on
mingwclang builds.
This change only really covers C++ code using operator new/delete, and
not things that would be using malloc/free, because it's easier.
malloc/free is left for a followup.
Differential Revision: https://phabricator.services.mozilla.com/D32119
--HG--
extra : moz-landing-system : lando
- modify line wrap up to 80 chars; (tw=80)
- modify size of tab to 2 chars everywhere; (sts=2, sw=2)
--HG--
extra : rebase_source : 7eedce0311b340c9a5a1265dc42d3121cc0f32a0
extra : amend_source : 9cb4ffdd5005f5c4c14172390dd00b04b2066cd7
They are both infallible wrappers of posix_memalign and valloc.
There is also moz_xmemalign, which wraps memalign, which is mostly
always available as of bug 1402647.
None of them are actually used, but it's still desirable to at least
have one infallible variant, so keep moz_xmemalign and remove the other
two.
While here, we actually make both memalign and moz_xmemalign always
available.
--HG--
extra : rebase_source : 1c3ca4b3e3310543145f3181dfa4e764be1d6ff8
They are both infallible wrappers of posix_memalign and valloc.
There is also moz_xmemalign, which wraps memalign, which is always
available as of bug 1402647.
None of them are actually used, but it's still desirable to at least
have one infallible variant, so keep moz_xmemalign and remove the other
two.
While here, we actually make moz_xmemalign always available, since
memalign is always available.
--HG--
extra : rebase_source : 17300bc03a715e5d36b4b687f22050622c1c70c8
jemalloc_ptr_info() gives info about any pointer, such as whether it's within a
live or free allocation, and if so, info about that allocation. It's useful for
debugging.
moz_malloc_enclosing_size_of() uses jemalloc_ptr_info() to measure the size of
an allocation from an interior pointer. It's useful for memory reporting,
especially for Rust code.
--HG--
extra : rebase_source : caa19cccf8c2d1f79cf004fe6a408775de5a7b22
This avoids many additions of `extern "C"` in C++ code and will avoid
having to do the same to mozjemalloc once built as C++.
--HG--
extra : rebase_source : af55696262f40a9dd16a19c29edcb9bb307d4957
This avoids many additions of `extern "C"` in C++ code and will avoid
having to do the same to mozjemalloc once built as C++.
--HG--
extra : rebase_source : af55696262f40a9dd16a19c29edcb9bb307d4957
We need to use _impl variants within mozalloc.h when they are defined because
of how mozglue.dll is linked on Windows, where using malloc/free would use
the symbols from the MSVCRT instead of ours.
Overwrite the OSX default zone allocator, taking into account the malloc_zone_t
version (supported versions are 3, 6, and 8) for Leopard, Snow Leopard and
Lion. jemalloc can be dynamically disabled for unknown malloc_zone_t versions,
for OSX 10.8 and beyond.
The changeset does not enable jemalloc, to allow for easy disabling if there's
a problem. It will be enabled in the next changeset.
This should be a 15-20% improvement in memory usage.
Mike Hommey
Ehsan Akhgari
Tooru Fujisawa
Benjamin Bouvier
Sylvestre Ledru
Nicholas Nethercote
Narcis Beleuzu
Sebastian Hengst
Carsten "Tomcat" Book
Emanuel Hoogeveen
Ted Mielczarek
Wes Kocher
Chris Peterson
Daniel Holbert
Trevor Saunders
Jan Beich
Gervase Markham
Gian-Carlo Pascutto
Jonathan Kew
Benjamin Smedberg
Paul Biggar ext:(%2C%20Jason%20Evans%20%3Cjasone%40canonware.com%3E%20and%20Dale%20Kim%20%3Cdalekim1%40illinois.edu%3E)
Kyle Huey