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

base/allocator/allocator.gyp

Index: base/allocator/allocator.gyp
diff --git a/base/allocator/allocator.gyp b/base/allocator/allocator.gyp
index 002ce2185a67e8ec6c600908075602565138511c..4a1b6af7ddcb3ea0cf29b3801787fffb7b53426d 100644
--- a/base/allocator/allocator.gyp
+++ b/base/allocator/allocator.gyp
@@ -303,6 +303,17 @@
         },
       },
       '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=',
@@ -466,6 +477,16 @@
       'include_dirs': [
         '../../'
       ],
+      'conditions': [
+        ['OS=="linux" and clang_type_profiler==1', {
+          'dependencies!': [
+            'type_profiler',
+          ],
+          'cflags_cc!': [
+            '-fintercept-allocation-functions',
+          ],
+        }],
+      ],
     },
    ],
   'conditions': [
@@ -548,5 +569,99 @@
       },
       ],
     }],
+    ['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',
+          ],
+        },
+      ],
+    }],
   ],
 }