Add big endian support

icu.gyp

Index: icu.gyp
diff --git a/icu.gyp b/icu.gyp
index 9675c734ab7621a06086aa5afb713948952297d9..4103a0db962948611e7f5c68a421add392670985 100644
--- a/icu.gyp
+++ b/icu.gyp
@@ -45,7 +45,7 @@
       ['(OS=="linux" or OS=="freebsd" or OS=="openbsd" or OS=="solaris" \
          or OS=="netbsd" or OS=="mac" or OS=="android" or OS=="qnx") and \
         (target_arch=="arm" or target_arch=="ia32" or \
-         target_arch=="mipsel")', {
+         target_arch=="mipsel" or target_arch=="mips")', {
         'target_conditions': [
           ['_toolset=="host"', {
             'cflags': [ '-m32' ],
@@ -60,7 +60,7 @@
       ['(OS=="linux" or OS=="freebsd" or OS=="openbsd" or OS=="solaris" \
          or OS=="netbsd" or OS=="mac" or OS=="android" or OS=="qnx") and \
         (target_arch=="arm64" or target_arch=="x64" or \
-         target_arch=="mipsel64")', {
+         target_arch=="mips64el" or target_arch=="mips64")', {
         'target_conditions': [
           ['_toolset=="host"', {
             'cflags': [ '-m64' ],
@@ -106,21 +106,77 @@
           }],
         },
         {
+          'target_name': 'data_assembly',
+          'type': 'none',
+          'conditions': [
+            [ 'target_arch=="mips" or target_arch=="mips64"', {
+              'data_assembly_sources': [
+                'common/icudtb.dat',
+              ],
+              'data_assembly_inputs': [
+                'scripts/make_data_assembly.py',
+                'common/icudtb.dat',
+              ],
+              'data_assembly_outputs': [
+                '<(SHARED_INTERMEDIATE_DIR)/icudtb_dat.S',

[jungshik at Google, 2016/06/02 18:58:42]

Change the output path to
<(SHARED_INTERMEDIATE_DIR)/third_party/icu/icudtb_dat.S
and all of its references have to be updated. 

+              ],
+            }],
+            [ 'target_arch!="mips" and target_arch!="mips64"', {
+              'data_assembly_sources': [
+                'common/icudtl.dat',
+              ],
+              'data_assembly_inputs': [
+                'scripts/make_data_assembly.py',
+                'common/icudtl.dat',
+              ],
+              'data_assembly_outputs': [
+                '<(SHARED_INTERMEDIATE_DIR)/icudtl_dat.S',

[jungshik at Google, 2016/06/02 18:58:41]

same here. 

+              ],
+            }],
+          ],
+          'sources': [
+            '<@(_data_assembly_sources)',
+            '<@(_data_assembly_outputs)',

[jungshik at Google, 2016/06/02 18:45:41]

"..data.._outputs" should not be in sources, should it? 

+          ],
+          'actions': [
+            {
+              'action_name': 'make_data_assembly',
+              'inputs': [
+                '<@(_data_assembly_inputs)',
+              ],
+              'outputs': [
+                '<@(_data_assembly_outputs)',
+              ],
+              'action': ['python', '<@(_inputs)', '<@(_outputs)'],
+            },
+          ],
+        },
+        {
           'target_name': 'icudata',
           'type': 'static_library',
           'defines': [
             'U_HIDE_DATA_SYMBOL',
           ],
+          'dependencies': [
+            'data_assembly#target',
+          ],
           'sources': [
              # These are hand-generated, but will do for now.  The linux
              # version is an identical copy of the (mac) icudtl_dat.S file,
              # modulo removal of the .private_extern and .const directives and
              # with no leading underscore on the icudt52_dat symbol.
              'android/icudtl_dat.S',
-             'linux/icudtl_dat.S',
+             '<(SHARED_INTERMEDIATE_DIR)/icudtl_dat.S',
+             '<(SHARED_INTERMEDIATE_DIR)/icudtb_dat.S',
              'mac/icudtl_dat.S',
           ],
           'conditions': [
+            [ 'target_arch=="mips" or target_arch=="mips64"', {
+              'sources!': ['<(SHARED_INTERMEDIATE_DIR)/icudtl_dat.S'],
+            }],
+            [ 'target_arch!="mips" and target_arch!="mips64"', {
+              'sources!': ['<(SHARED_INTERMEDIATE_DIR)/icudtb_dat.S'],
+            }],
             [ 'use_system_icu==1 and want_separate_host_toolset==1', {
               'toolsets': ['host'],
             }],
@@ -132,6 +188,9 @@
             }],
             [ 'OS == "win" and icu_use_data_file_flag==0', {
               'type': 'none',
+              'dependencies!': [
+                'data_assembly#target',

[jungshik at Google, 2016/06/02 18:45:41]

for now (it'll be short-lived), this dependency exclusion also has to be done
when OS == "mac" or OS == "ios".

OS == "android" does not matter because Android build (chromium) does not use
gyp any more. 
 

+              ],
               'copies': [
                 {
                   'destination': '<(PRODUCT_DIR)',
@@ -143,8 +202,11 @@
             }],
             [ 'icu_use_data_file_flag==1', {
               'type': 'none',
+              'dependencies!': [
+                'data_assembly#target',
+              ],
               # Remove any assembly data file.
-              'sources/': [['exclude', 'icudtl_dat']],
+              'sources/': [['exclude', 'icudtl_dat', 'icudtb_dat']],
 
               # Make sure any binary depending on this gets the data file.
               'conditions': [
@@ -166,7 +228,10 @@
             [ 'OS == "win" or OS == "mac" or OS == "ios" or '
               '(OS == "android" and (_toolset != "host" or host_os != "linux")) or '
               '(OS == "qnx" and (_toolset == "host" and host_os != "linux"))', {
-              'sources!': ['linux/icudtl_dat.S'],
+              'sources!': [
+                '<(SHARED_INTERMEDIATE_DIR)/icudtl_dat.S',
+                '<(SHARED_INTERMEDIATE_DIR)/icudtb_dat.S'
+              ],
             }],
             [ 'OS != "android" or _toolset == "host"', {
               'sources!': ['android/icudtl_dat.S'],
@@ -268,6 +333,7 @@
           ],
           'dependencies': [
             'icudata',
+            'data_assembly#target',
           ],
           'direct_dependent_settings': {
             'include_dirs': [
@@ -345,6 +411,9 @@
               'toolsets': ['target'],
             }],
             [ 'OS == "win" or icu_use_data_file_flag==1', {
+              'dependencies!': [
+                'data_assembly#target',
+              ],
               'sources': [
                 'source/stubdata/stubdata.c',
               ],