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| author | dmikurube@chromium.org <dmikurube@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> | 2012-09-26 05:17:25 +0000 |
|---|---|---|
| committer | dmikurube@chromium.org <dmikurube@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> | 2012-09-26 05:17:25 +0000 |
| commit | 7ce58b29d323d6da838330661a80c67b7871734b (patch) | |
| tree | 94b8367342219267b3fc3c91c82b0cbde532b784 /build | |
| parent | 75693935c15c7d02e3dc3ebe92d8d6a32f44e711 (diff) | |
| download | chromium_src-7ce58b29d323d6da838330661a80c67b7871734b.zip chromium_src-7ce58b29d323d6da838330661a80c67b7871734b.tar.gz chromium_src-7ce58b29d323d6da838330661a80c67b7871734b.tar.bz2 | |
Type profiler by intercepting 'new' and 'delete' expressions.
It stores mapping between object's starting addresses and their
allocated types when a build option 'clang_type_profiler=1' is
specified. It enables information like
"an object at 0x37f3c88 is an instance of std::string."
Nothing is changed when the option is not specified.
It depends on a modified version of the LLVM/Clang compiler
introduced at deps/third_party/llvm-allocated-type.
BUG=123758
TEST=build with clang_type_profiler=1 and run type_profiler_unittests and type_profiler_map_unittests manually.
Review URL: https://chromiumcodereview.appspot.com/10411047
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@158752 0039d316-1c4b-4281-b951-d872f2087c98
Diffstat (limited to 'build')
| -rw-r--r-- | build/common.gypi | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/build/common.gypi b/build/common.gypi index a993fb0..9c8094b 100644 --- a/build/common.gypi +++ b/build/common.gypi @@ -253,6 +253,12 @@ # See http://clang.llvm.org/docs/ThreadSanitizer.html 'tsan%': 0, + # Use a modified version of Clang to intercept allocated types and sizes + # for allocated objects. clang_type_profiler=1 implies clang=1. + # See http://dev.chromium.org/developers/deep-memory-profiler/cpp-object-type-identifier + # TODO(dmikurube): Support mac. See http://crbug.com/123758#c11 + 'clang_type_profiler%': 0, + # Set to true to instrument the code with function call logger. # See src/third_party/cygprofile/cyg-profile.cc for details. 'order_profiling%': 0, @@ -633,6 +639,7 @@ 'clang_use_chrome_plugins%': '<(clang_use_chrome_plugins)', 'asan%': '<(asan)', 'tsan%': '<(tsan)', + 'clang_type_profiler%': '<(clang_type_profiler)', 'order_profiling%': '<(order_profiling)', 'order_text_section%': '<(order_text_section)', 'enable_extensions%': '<(enable_extensions)', @@ -1276,6 +1283,12 @@ 'clang%': 1, }], + ['OS=="linux" and clang_type_profiler==1', { + 'clang%': 1, + 'clang_use_chrome_plugins%': 0, + 'make_clang_dir%': 'third_party/llvm-allocated-type/Linux_x64', + }], + # On valgrind bots, override the optimizer settings so we don't inline too # much and make the stacks harder to figure out. # @@ -1426,6 +1439,18 @@ ], }, 'conditions': [ + ['OS=="linux" and linux_use_tcmalloc==1 and clang_type_profiler==1', { + 'cflags_cc!': ['-fno-rtti'], + 'cflags_cc+': [ + '-frtti', + '-gline-tables-only', + '-fintercept-allocation-functions', + ], + 'defines': ['TYPE_PROFILING'], + 'dependencies': [ + '<(DEPTH)/base/allocator/allocator.gyp:type_profiler', + ], + }], ['OS=="win" and "<(msbuild_toolset)"!=""', { 'msbuild_toolset': '<(msbuild_toolset)', }], |