Set defaults for building chrome for linux/arm.

build/common.gypi

 # 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.
 
 # IMPORTANT:
 # Please don't directly include this file if you are building via gyp_chromium,
 # since gyp_chromium is automatically forcing its inclusion.
 {
   # Variables expected to be overriden on the GYP command line (-D) or by
   # ~/.gyp/include.gypi.
@@ skipping 57 matching lines @@
 
             # For now, Windows builds that |use_aura| should also imply using
             # ash. This rule should be removed for the future when Windows is
             # using the aura windows without the ash interface.
             ['use_aura==1 and OS=="win"', {
               'use_ash%': 1,
             }],
             ['use_ash==1', {
               'use_aura%': 1,
             }],
+
+            # Compute the architecture that we're building on.
+            ['OS=="win" or OS=="mac" or OS=="ios"', {
+              'host_arch%': 'ia32',
+            }, {
+              # This handles the Unix platforms for which there is some support.
+              # Anything else gets passed through, which probably won't work
+              # very well; such hosts should pass an explicit target_arch to
+              # gyp.
+              'host_arch%':
+                '<!(uname -m | sed -e "s/i.86/ia32/;s/x86_64/x64/;s/amd64/x64/;s/arm.*/arm/;s/i86pc/ia32/")',
+            }],
           ],
         },
         # Copy conditionally-set variables out one scope.
         'chromeos%': '<(chromeos)',
         'use_aura%': '<(use_aura)',
         'use_ash%': '<(use_ash)',
         'use_openssl%': '<(use_openssl)',
         'use_ibus%': '<(use_ibus)',
         'enable_viewport%': '<(enable_viewport)',
         'enable_hidpi%': '<(enable_hidpi)',
         'enable_touch_ui%': '<(enable_touch_ui)',
         'buildtype%': '<(buildtype)',
+        'host_arch%': '<(host_arch)',
+
+        # Default architecture we're building for is the architecture we're
+        # building on.
+        'target_arch%': '<(host_arch)',
 
         # Sets whether we're building with the Android SDK/NDK (and hence with
         # Ant, value 0), or as part of the Android system (and hence with the
         # Android build system, value 1).
         'android_build_type%': 0,
 
-        # Compute the architecture that we're building on.
         'conditions': [
-          ['OS=="win" or OS=="mac" or OS=="ios"', {
-            'host_arch%': 'ia32',
-          }, {
-            # This handles the Unix platforms for which there is some support.
-            # Anything else gets passed through, which probably won't work very
-            # well; such hosts should pass an explicit target_arch to gyp.
-            'host_arch%':
-              '<!(uname -m | sed -e "s/i.86/ia32/;s/x86_64/x64/;s/amd64/x64/;s/arm.*/arm/;s/i86pc/ia32/")',
-          }],
-
           # Set default value of toolkit_views based on OS.
           ['OS=="win" or chromeos==1 or use_aura==1', {
             'toolkit_views%': 1,
           }, {
             'toolkit_views%': 0,
           }],
 
           # Set toolkit_uses_gtk for the Chromium browser on Linux.
           ['(OS=="linux" or OS=="freebsd" or OS=="openbsd" or OS=="solaris") and use_aura==0', {
             'toolkit_uses_gtk%': 1,
@@ skipping 22 matching lines @@
             'use_default_render_theme%': 1,
           }, {
             'use_default_render_theme%': 0,
           }],
         ],
       },
 
       # Copy conditionally-set variables out one scope.
       'chromeos%': '<(chromeos)',
       'host_arch%': '<(host_arch)',
+      'target_arch%': '<(target_arch)',
       'toolkit_views%': '<(toolkit_views)',
       'toolkit_uses_gtk%': '<(toolkit_uses_gtk)',
       'use_aura%': '<(use_aura)',
       'use_ash%': '<(use_ash)',
       'use_openssl%': '<(use_openssl)',
       'use_ibus%': '<(use_ibus)',
       'enable_viewport%': '<(enable_viewport)',
       'enable_hidpi%': '<(enable_hidpi)',
       'enable_touch_ui%': '<(enable_touch_ui)',
       'android_build_type%': '<(android_build_type)',
       'enable_app_list%': '<(enable_app_list)',
       'use_default_render_theme%': '<(use_default_render_theme)',
+      'buildtype%': '<(buildtype)',
 
       # We used to provide a variable for changing how libraries were built.
       # This variable remains until we can clean up all the users.
       # This needs to be one nested variables dict in so that dependent
       # gyp files can make use of it in their outer variables.  (Yikes!)
       # http://code.google.com/p/chromium/issues/detail?id=83308
       'library%': 'static_library',
 
       # Override branding to select the desired branding flavor.
       'branding%': 'Chromium',
 
-      'buildtype%': '<(buildtype)',
-
-      # Default architecture we're building for is the architecture we're
-      # building on.
-      'target_arch%': '<(host_arch)',
-
       # This variable tells WebCore.gyp and JavaScriptCore.gyp whether they are
       # are built under a chromium full build (1) or a webkit.org chromium
       # build (0).
       'inside_chromium_build%': 1,
 
       # Set to 1 to enable fast builds. It disables debug info for fastest
       # compilation.
       'fastbuild%': 0,
 
       # Set to 1 to enable dcheck in release without having to use the flag.
@@ skipping 392 matching lines @@
           # where possible to reduce ROM size.
           'use_system_libjpeg%': '<(android_build_type)',
         }],
 
         # Enable Settings App only on Windows.
         ['enable_app_list==1 and OS=="win"', {
           'enable_settings_app%': 1,
         }, {
           'enable_settings_app%': 0,
         }],
+
+        ['OS=="linux" and target_arch=="arm" and chromeos==0', {
+          # Set some defaults for arm/linux chrome builds
+          'armv7%': 1,
+          'linux_breakpad%': 0,
+          'linux_use_tcmalloc%': 0,
+          'linux_use_gold_flags%': 0,
+          # sysroot need to be an absolute path otherwise it generates
+          # incorrect results when passed to pkg-config
+          'sysroot%': '<!(cd <(DEPTH)/arm-sysroot && pwd -P)',
+        }], # OS=="linux" and target_arch=="arm" and chromeos==0
       ],
 
       # Set this to 1 to use the Google-internal file containing
       # official API keys for Google Chrome even in a developer build.
       # Setting this variable explicitly to 1 will cause your build to
       # fail if the internal file is missing.
       #
       # Set this to 0 to not use the internal file, even when it
       # exists in your checkout.
       #
@@ skipping 613 matching lines @@
             # Enable Keystone auto-update support.
             'mac_keystone%': 1,
           }, { # else: branding!="Chrome" or buildtype!="Official"
             'mac_sdk%': '<!(python <(DEPTH)/build/mac/find_sdk.py <(mac_sdk_min))',
             'mac_breakpad_uploads%': 0,
             'mac_breakpad%': 0,
             'mac_keystone%': 0,
           }],
         ],
       }],  # OS=="mac"
-
       ['OS=="win"', {
         'conditions': [
           ['component=="shared_library"', {
             'win_use_allocator_shim%': 0,
           }],
           ['component=="shared_library" and "<(GENERATOR)"=="ninja"', {
             # Only enabled by default for ninja because it's buggy in VS.
             # Not enabled for component=static_library because some targets
             # are too large and the toolchain fails due to the size of the
             # .obj files.
@@ skipping 1361 matching lines @@
                     # Android now supports .relro sections properly.
                     # NOTE: While these flags enable the generation of .relro
                     # sections, the generated libraries can still be loaded on
                     # older Android platform versions.
                     'ldflags': [
                         '-Wl,-z,relro',
                         '-Wl,-z,now',
                         '-fuse-ld=gold',
                     ],
                     'conditions': [
-                      ['arm_thumb == 1', {
+                      ['arm_thumb==1', {
                         # Android toolchain doesn't support -mimplicit-it=thumb
-                        'cflags!': [ '-Wa,-mimplicit-it=thumb', ],
-                        'cflags': [ '-mthumb-interwork', ],
+                        'cflags!': [ '-Wa,-mimplicit-it=thumb' ],
+                        'cflags': [ '-mthumb-interwork' ],
                       }],
                       ['armv7==0', {
                         # Flags suitable for Android emulator
                         'cflags': [
                           '-march=armv5te',
                           '-mtune=xscale',
                           '-msoft-float',
                         ],
                         'defines': [
                           '__ARM_ARCH_5__',
@@ skipping 1300 matching lines @@
     # settings in target dicts.  SYMROOT is a special case, because many other
     # Xcode variables depend on it, including variables such as
     # PROJECT_DERIVED_FILE_DIR.  When a source group corresponding to something
     # like PROJECT_DERIVED_FILE_DIR is added to a project, in order for the
     # files to appear (when present) in the UI as actual files and not red
     # red "missing file" proxies, the correct path to PROJECT_DERIVED_FILE_DIR,
     # and therefore SYMROOT, needs to be set at the project level.
     'SYMROOT': '<(DEPTH)/xcodebuild',
   },
 }