Enable native stack walking for allocation profiling

runtime/bin/bin.gypi

 # Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 # for details. All rights reserved. Use of this source code is governed by a
 # BSD-style license that can be found in the LICENSE file.
 
 {
   'variables': {
     'gen_source_dir': '<(SHARED_INTERMEDIATE_DIR)',
 
     'io_cc_file': '<(gen_source_dir)/io_gen.cc',
     'io_patch_cc_file': '<(gen_source_dir)/io_patch_gen.cc',
@@ skipping 750 matching lines @@
         ['include', '_gen\\.cc$'],
         ['include', '_test\\.(cc|h)$'],
       ],
       'conditions': [
         ['OS=="win"', {
           'link_settings': {
             'libraries': [ '-lws2_32.lib', '-lRpcrt4.lib', '-lwinmm.lib' ],
           },
         }],
       ],
+      'configurations': {
+        'Dart_Linux_Base': {
+          # Have the linker add all symbols to the dynamic symbol table
+          # so that extensions can look them up dynamically in the binary.
+          'ldflags': [
+            '-rdynamic',
+          ],
+        },
+      },
     },
     {
       'target_name': 'test_extension',
       'type': 'shared_library',
       'dependencies': [
         'dart',
       ],
       'include_dirs': [
         '..',
       ],
@@ skipping 28 matching lines @@
         }],
         ['OS=="linux"', {
           'cflags': [
             '-fPIC',
           ],
         }],
       ],
     },
   ],
 }