зеркало из https://github.com/mozilla/gecko-dev.git
100 строки
3.1 KiB
Python
100 строки
3.1 KiB
Python
# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
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# vim: set filetype=python:
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# This Source Code Form is subject to the terms of the Mozilla Public
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# License, v. 2.0. If a copy of the MPL was not distributed with this
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# file, You can obtain one at http://mozilla.org/MPL/2.0/.
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@depends(target, js_package)
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def jemalloc_default(target, js_package):
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if js_package:
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return False
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return target.kernel in ("Darwin", "Linux", "WINNT")
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option(
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"--enable-jemalloc",
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env="MOZ_MEMORY",
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default=jemalloc_default,
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help="{Replace|Do not replace} memory allocator with jemalloc",
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)
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set_config("MOZ_MEMORY", True, when="--enable-jemalloc")
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set_define("MOZ_MEMORY", True, when="--enable-jemalloc")
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add_old_configure_assignment("MOZ_MEMORY", True, when="--enable-jemalloc")
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@depends(milestone, build_project)
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def replace_malloc_default(milestone, build_project):
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if build_project == "memory":
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return True
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if milestone.is_early_beta_or_earlier and build_project != "js":
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return True
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option(
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"--enable-replace-malloc",
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default=replace_malloc_default,
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when="--enable-jemalloc",
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help="{Enable|Disable} ability to dynamically replace the malloc implementation",
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)
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set_config("MOZ_REPLACE_MALLOC", True, when="--enable-replace-malloc")
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set_define("MOZ_REPLACE_MALLOC", True, when="--enable-replace-malloc")
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@depends(build_project, when="--enable-replace-malloc")
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def replace_malloc_static(build_project):
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# Default to statically linking replace-malloc libraries that can be
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# statically linked, except when building with --enable-project=memory.
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if build_project != "memory":
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return True
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set_config("MOZ_REPLACE_MALLOC_STATIC", replace_malloc_static)
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# PHC (Probabilistic Heap Checker)
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# ==============================================================
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# In general, it only makes sense for PHC to run on the platforms that have a
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# crash reporter.
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@depends(
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milestone,
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target,
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replace_malloc_default,
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"--enable-replace-malloc",
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when="--enable-jemalloc",
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)
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def phc_default(milestone, target, replace_malloc_default, replace_malloc):
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if not replace_malloc_default or (
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replace_malloc.origin != "default" and not replace_malloc
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):
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return False
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# Nightly or early beta only because PHC has a non-negligible performance cost.
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if not milestone.is_early_beta_or_earlier:
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return False
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# Both Linux32 and Win32 have frequent crashes when stack tracing (for
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# unclear reasons), so PHC is enabled only on 64-bit only in both cases.
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return (
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(target.os == "GNU" and target.kernel == "Linux" and target.bitness == 64)
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or (target.kernel == "WINNT" and target.bitness == 64)
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or (target.os == "OSX")
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)
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option(
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"--enable-phc",
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env="MOZ_PHC",
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default=phc_default,
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when="--enable-jemalloc",
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help="{Enable|Disable} PHC (Probabilistic Memory Checker). "
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"Also enables replace-malloc and frame pointers",
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)
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imply_option("--enable-replace-malloc", True, when="--enable-phc")
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imply_option("--enable-frame-pointers", True, when="--enable-phc")
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set_config("MOZ_PHC", True, when="--enable-phc")
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