Bug 767024 - Allow dependentlibs.py to work when cross-compiling for Android on OSX. r=khuey

build/autoconf/android.m4

@@ -98,6 +98,7 @@ case "$target" in
     fi
 
     dnl set up compilers
+    TOOLCHAIN_PREFIX="$android_toolchain/bin/$android_tool_prefix-"
     AS="$android_toolchain"/bin/"$android_tool_prefix"-as
     CC="$android_toolchain"/bin/"$android_tool_prefix"-gcc
     CXX="$android_toolchain"/bin/"$android_tool_prefix"-g++

config/autoconf.mk.in

@@ -357,6 +357,7 @@ HAVE_64BIT_OS	= @HAVE_64BIT_OS@
 CC		    = @CC@
 CXX		    = @CXX@
 CPP       = @CPP@
+TOOLCHAIN_PREFIX = @TOOLCHAIN_PREFIX@
 
 CC_VERSION	= @CC_VERSION@
 CXX_VERSION	= @CXX_VERSION@

configure.in

@@ -171,6 +171,7 @@ if test -n "$gonkdir" ; then
     ANDROID_NDK="${ANDROID_SOURCE}/ndk"
 
     dnl set up compilers
+    TOOLCHAIN_PREFIX="$gonk_toolchain_prefix"
     AS="$gonk_toolchain_prefix"as
     CC="$gonk_toolchain_prefix"gcc
     CXX="$gonk_toolchain_prefix"g++
@@ -8320,6 +8321,7 @@ AC_SUBST(MOZ_FEEDS)
 AC_SUBST(NS_PRINTING)
 AC_SUBST(MOZ_WEBGL)
 AC_SUBST(MOZ_HELP_VIEWER)
+AC_SUBST(TOOLCHAIN_PREFIX)
 
 AC_SUBST(JAVA)
 AC_SUBST(JAVAC)

js/src/build/autoconf/android.m4

@@ -98,6 +98,7 @@ case "$target" in
     fi
 
     dnl set up compilers
+    TOOLCHAIN_PREFIX="$android_toolchain/bin/$android_tool_prefix-"
     AS="$android_toolchain"/bin/"$android_tool_prefix"-as
     CC="$android_toolchain"/bin/"$android_tool_prefix"-gcc
     CXX="$android_toolchain"/bin/"$android_tool_prefix"-g++

xpcom/stub/Makefile.in

@@ -57,4 +57,4 @@ include $(topsrcdir)/config/rules.mk
 libs:: $(FINAL_TARGET)/dependentlibs.list
 
 $(FINAL_TARGET)/dependentlibs.list: dependentlibs.py $(SHARED_LIBRARY) $(wildcard $(if $(wildcard $(FINAL_TARGET)/dependentlibs.list),$(addprefix $(FINAL_TARGET)/,$(shell cat $(FINAL_TARGET)/dependentlibs.list))))
-	$(PYTHON) $< $(SHARED_LIBRARY) -L $(FINAL_TARGET) > $@
+	$(PYTHON) $< $(SHARED_LIBRARY) -L $(FINAL_TARGET) $(if $(TOOLCHAIN_PREFIX),$(addprefix -p ,$(TOOLCHAIN_PREFIX))) > $@

xpcom/stub/dependentlibs.py

@@ -12,6 +12,8 @@ import re
 import subprocess
 import sys
 
+TOOLCHAIN_PREFIX = ''
+
 def dependentlibs_dumpbin(lib):
     '''Returns the list of dependencies declared in the given DLL'''
     proc = subprocess.Popen(['dumpbin', '-imports', lib], stdout = subprocess.PIPE)
@@ -26,7 +28,7 @@ def dependentlibs_dumpbin(lib):
 
 def dependentlibs_readelf(lib):
     '''Returns the list of dependencies declared in the given ELF .so'''
-    proc = subprocess.Popen(['readelf', '-d', lib], stdout = subprocess.PIPE)
+    proc = subprocess.Popen([TOOLCHAIN_PREFIX + 'readelf', '-d', lib], stdout = subprocess.PIPE)
     deps = []
     for line in proc.stdout:
         # Each line has the following format:
@@ -84,7 +86,11 @@ def dependentlibs(lib, libpaths, func):
 def main():
     parser = OptionParser()
     parser.add_option("-L", dest="libpaths", action="append", metavar="PATH", help="Add the given path to the library search path")
+    parser.add_option("-p", dest="toolchain_prefix", metavar="PREFIX", help="Use the given prefix to readelf")
     (options, args) = parser.parse_args()
+    if options.toolchain_prefix:
+        global TOOLCHAIN_PREFIX
+        TOOLCHAIN_PREFIX = options.toolchain_prefix
     lib = args[0]
     ext = os.path.splitext(lib)[1]
     if ext == '.dll':