Issue 4907 - Update v8 to 5.7.278 in libadblockplus

make_gyp_wrapper.py

Index: make_gyp_wrapper.py
diff --git a/make_gyp_wrapper.py b/make_gyp_wrapper.py
new file mode 100755
index 0000000000000000000000000000000000000000..1bf2761bfdc18be29950f44f26e971fe359df9b5
--- /dev/null
+++ b/make_gyp_wrapper.py
@@ -0,0 +1,122 @@
+#!/usr/bin/env python
+# coding: utf-8
+"""This script fixes the support of manually compiled static libraries for
+android NDK build system.
+
+Issue:
+Let's say there are some manually compiled libraries specified in
+link_settings.libraries or in ldflags of a gyp file. In this case ndk-build
+passes them to a linker after system libraries, like c++_static, and
+as the result linker cannot find functions from system libraries.
+
+Desire:
+Pass manually compiled libraries after regular dependencies.
+
+How it works:
+The recommended way to do it is to use LOCAL_STATIC_LIBRARIES. However, to
+simply add libraries to the list is not enough because here ndk-build is trying
+to be too smart and removes any libraries which are not defined in Makefiles.
+
+So, the idea is to monkey patch gyp to inject definition of static libraries
+and add them to LOCAL_STATIC_LIBRARIES. The former is to prevent them from
+being removed.
+
+Firstly some excerpts from gyp codebase:
+source: gyp/pylib/gyp/generator/make.py
+
+MakefileWriter(object):
+    def Write(self, qualified_target, base_path, output_filename, spec, configs,
+            part_of_all):
+    // The main entry point: writes a .mk file for a single target.
+        ...
+        if android:
+           self.WriteAndroidNdkModuleRule(...)
+
+    def WriteAndroidNdkModuleRule(self, module_name, all_sources, link_deps):
+    /* Write a set of LOCAL_XXX definitions for Android NDK.
+
+    These variable definitions will be used by Android NDK but do nothing for
+    non-Android applications.
+
+    Arguments:
+      module_name: Android NDK module name, which must be unique among all
+          module names.
+      all_sources: A list of source files (will be filtered by Compilable).
+      link_deps: A list of link dependencies, which must be sorted in
+          the order from dependencies to dependents.
+    */
+        ...
+        self.WriteList(
+                DepsToModules(link_deps,
+                              generator_default_variables['STATIC_LIB_PREFIX'],
+                              generator_default_variables['STATIC_LIB_SUFFIX']),
+                'LOCAL_STATIC_LIBRARIES')
+        ....
+
+    def WriteList(self, value_list, variable=None, prefix='',
+                quoter=QuoteIfNecessary):
+    // Write a variable definition that is a list of values.
+
+The only class which is writing Makefiles is MakefileWriter and the "entry
+point" is MakefileWriter.Write. To write LOCAL_STATIC_LIBRARIES it uses
+MakefileWriter.WriteList, so one could simply override
+- Write method to store all required information and to define (CLEAR_VARS,
+  LOCAL_MODULE, etc) libraries.
+- WriteList to change the value of LOCAL_STATIC_LIBRARIES.
+However merely to reduce any potential influence we override
+MakefileWriter.WriteAndroidNdkModuleRule to define manually compiled libraries
+and override WriteList only while we are in the WriteAndroidNdkModuleRule method.
+The aim of the latter method is exactly to write Rules for ndk-build and it is
+called at the end of Write. However, since WriteAndroidNdkModuleRule lacks
+required information, we override method Write to store configurations as
+_abp_configs attribute of instance of MakefileWriter.
+"""
+
+import os
+import sys
+import types
+
+base_dir = os.path.abspath(os.path.dirname(__file__))
+sys.path.append(os.path.join(base_dir, 'third_party', 'gyp', 'pylib'))
+import gyp
+from gyp.generator.make import MakefileWriter, QuoteIfNecessary
+
+
+orig_MakefileWriter_Write = MakefileWriter.Write
+orig_MakefileWriter_WriteAndroidNdkModuleRule = MakefileWriter.WriteAndroidNdkModuleRule
+
+def overridden_Write(self, qualified_target, base_path, output_filename, spec, configs, part_of_all):
+    if hasattr(self, "_abp_configs"):
+      sys.exit("MakefileWriter already has property _abp_configs")
+    self._abp_configs = configs
+    orig_MakefileWriter_Write(self, qualified_target, base_path, output_filename, spec, configs, part_of_all)
+    delattr(self, "_abp_configs")
+
+def overridden_WriteAndroidNdkModuleRule(self, module_name, all_sources, link_deps):
+    for config in self._abp_configs:
+        libs = self._abp_configs[config].get("user_libraries")
+        if not libs:
+            continue
+        self.WriteLn("ifeq (${{BUILDTYPE}}, {})".format(config))
+        for lib in libs:
+            self.WriteLn("include $(CLEAR_VARS)")
+            self.WriteLn("LOCAL_MODULE := {}".format(lib))
+            self.WriteLn("LOCAL_SRC_FILES := {}".format(lib))
+            self.WriteLn("include $(PREBUILT_STATIC_LIBRARY)")
+            self.WriteLn("ABP_STATIC_LIBRARIES_${{BUILDTYPE}} += {}".format(lib))
+        self.WriteLn("endif")
+    orig_WriteList = self.WriteList 
+    def overridden_WriteList(self, orig_value_list, variable=None, prefix='', quoter=QuoteIfNecessary):
+        value_list = orig_value_list[:]
+        if variable == "LOCAL_STATIC_LIBRARIES":
+            value_list.append("${ABP_STATIC_LIBRARIES_${BUILDTYPE}}")
+        orig_WriteList(value_list, variable, prefix, quoter)
+    self.WriteList = types.MethodType(overridden_WriteList, self)
+    orig_MakefileWriter_WriteAndroidNdkModuleRule(self, module_name, all_sources, link_deps)
+    self.WriteList = orig_WriteList
+
+MakefileWriter.Write = overridden_Write
+MakefileWriter.WriteAndroidNdkModuleRule = overridden_WriteAndroidNdkModuleRule
+
+if __name__ == '__main__':
+    gyp.main(sys.argv[1:])