Type profiler by intercepting 'new' and 'delete' expressions.

base/allocator/allocator.gyp

 # Copyright (c) 2012 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 {
   'variables': {
     'jemalloc_dir': '../../third_party/jemalloc/chromium',
     'tcmalloc_dir': '../../third_party/tcmalloc/chromium',
     'use_vtable_verify%': 0,
   },
@@ skipping 285 matching lines @@
       'configurations': {
         'Debug_Base': {
           'msvs_settings': {
             'VCCLCompilerTool': {
               'RuntimeLibrary': '0',
             },
           },
         },
       },
       'conditions': [
+        ['OS=="linux" and clang_type_profiler==1', {
+          'dependencies': [
+            'type_profiler_tcmalloc',
+          ],
+          'dependencies!': [
+            'type_profiler',
+          ],
+          'cflags_cc!': [
+            '-fintercept-allocation-functions',
+          ],
+        }],
         ['OS=="win"', {
           'defines': [
             'PERFTOOLS_DLL_DECL=',
           ],
           'defines!': [
             # tcmalloc source files unconditionally define this, remove it from
             # the list of defines that common.gypi defines globally.
             'NOMINMAX',
           ],
           'dependencies': [
@@ skipping 143 matching lines @@
       'target_name': 'allocator_extension_thunks',
       'type': 'static_library',
       'sources': [
         'allocator_extension_thunks.cc',
         'allocator_extension_thunks.h',
       ],
       'toolsets': ['host', 'target'],
       'include_dirs': [
         '../../'
       ],
+      'conditions': [
+        ['OS=="linux" and clang_type_profiler==1', {
+          'dependencies!': [
+            'type_profiler',
+          ],
+          'cflags_cc!': [
+            '-fintercept-allocation-functions',
+          ],
+        }],
+      ],
     },
    ],
   'conditions': [
     ['OS=="win"', {
       'targets': [
         {
           'target_name': 'libcmt',
           'type': 'none',
           'actions': [
             {
@@ skipping 62 matching lines @@
           '<(tcmalloc_dir)/src',
         ],
         'dependencies': [
           '../../testing/gtest.gyp:gtest',
           '../base.gyp:base',
           'allocator',
         ],
       },
       ],
     }],
+    ['OS=="linux" and clang_type_profiler==1', {
+      'targets': [

[Ryan Sleevi, 2012/09/12 19:13:34]

I think it would be helpful to have a comment above here explaining why the
repeated pattern:

'dependencies!': [ 'type_profiler' ],
'cflags_cc!': [ '-fintercept-allocation-functions' ],

exists (namely, that it's undoing what build/common.gypi injects into all
targets)

[Dai Mikurube (NOT FULLTIME), 2012/09/13 04:00:12]

Done.

+        {
+          'target_name': 'type_profiler',
+          'type': 'static_library',
+          'dependencies!': [
+            'type_profiler',
+          ],
+          'cflags_cc!': [
+            '-fintercept-allocation-functions',
+          ],
+          'include_dirs': [
+            '.',
+            '<(tcmalloc_dir)/src/base',
+            '<(tcmalloc_dir)/src',
+            '../..',

[Ryan Sleevi, 2012/09/12 19:13:34]

I don't believe any of the include_dirs are necessary/correct for this target,
since its purpose is to act as a shim between the layers.

[Dai Mikurube (NOT FULLTIME), 2012/09/13 04:00:12]

Good catch.  Removed unnecessary dirs.

+          ],
+          'sources': [
+            'type_profiler.cc',
+            'type_profiler.h',
+            'type_profiler_control.h',
+          ],
+        },
+        {
+          'target_name': 'type_profiler_tcmalloc',
+          'type': 'static_library',
+          'dependencies!': [
+            'type_profiler',
+          ],
+          'cflags_cc!': [
+            '-fintercept-allocation-functions',
+          ],
+          'include_dirs': [
+            '.',
+            '<(tcmalloc_dir)/src/base',
+            '<(tcmalloc_dir)/src',
+            '../..',
+          ],
+          'sources': [
+            'type_profiler_tcmalloc.cc',
+            'type_profiler_tcmalloc.h',
+            '<(tcmalloc_dir)/src/type_profiler_map.cc',
+            '<(tcmalloc_dir)/src/gperftools/type_profiler_map.h',
+          ],
+        },
+        {
+          'target_name': 'type_profiler_unittests',
+          'type': 'executable',
+          'dependencies': [
+            '../../testing/gtest.gyp:gtest',
+            '../base.gyp:base',
+            'allocator',
+            'type_profiler_tcmalloc',
+          ],
+          'include_dirs': [
+            '.',
+            '<(tcmalloc_dir)/src/base',
+            '<(tcmalloc_dir)/src',
+            '../..',
+          ],
+          'sources': [
+            'type_profiler_control.cc',
+            'type_profiler_control.h',
+            'type_profiler_unittests.cc',
+          ],
+        },
+        {
+          'target_name': 'type_profiler_map_unittests',
+          'type': 'executable',
+          'dependencies': [
+            '../../testing/gtest.gyp:gtest',
+            '../base.gyp:base',
+            'allocator',
+          ],
+          'dependencies!': [
+            'type_profiler',
+          ],
+          'cflags_cc!': [
+            '-fintercept-allocation-functions',
+          ],
+          'include_dirs': [
+            '.',
+            '<(tcmalloc_dir)/src/base',
+            '<(tcmalloc_dir)/src',
+            '../..',
+          ],
+          'sources': [
+            'type_profiler_map_unittests.cc',
+            '<(tcmalloc_dir)/src/type_profiler_map.cc',
+            '<(tcmalloc_dir)/src/gperftools/type_profiler_map.h',
+          ],
+        },
+      ],
+    }],
   ],
 }