tberghammer created this revision.
tberghammer added reviewers: labath, ovyalov.
tberghammer added a subscriber: lldb-commits.
Herald added subscribers: srhines, danalbert, tberghammer, rengolin, aemerson.
Switch to gold linker on android x86, x86_64, arm
These architectures already using the gold linker for the android framework and
switching to gold gives us the opportunity to enable ICF.
Safe ICF (identical code folding) reduces the size of an optimized and striped
binary by ~5%
http://reviews.llvm.org/D15379
Files:
cmake/platforms/Android.cmake
Index: cmake/platforms/Android.cmake
===================================================================
--- cmake/platforms/Android.cmake
+++ cmake/platforms/Android.cmake
@@ -121,6 +121,13 @@
endif()
endif()
+# Use gold linker and enable safe ICF in case of x86, x86_64 and arm
+if ( ANDROID_ABI STREQUAL "x86" OR
+ ANDROID_ABI STREQUAL "x86_64" OR
+ ANDROID_ABI STREQUAL "armeabi")
+ set( ANDROID_LINKER_FLAGS "${ANDROID_LINKER_FLAGS} -fuse-ld=gold
-Wl,--icf=safe" )
+endif()
+
if( NOT LLVM_BUILD_STATIC )
# PIE is required for API 21+ so we enable it if we're not statically linking
# unfortunately, it is not supported before API 16 so we need to do something
Index: cmake/platforms/Android.cmake
===================================================================
--- cmake/platforms/Android.cmake
+++ cmake/platforms/Android.cmake
@@ -121,6 +121,13 @@
endif()
endif()
+# Use gold linker and enable safe ICF in case of x86, x86_64 and arm
+if ( ANDROID_ABI STREQUAL "x86" OR
+ ANDROID_ABI STREQUAL "x86_64" OR
+ ANDROID_ABI STREQUAL "armeabi")
+ set( ANDROID_LINKER_FLAGS "${ANDROID_LINKER_FLAGS} -fuse-ld=gold -Wl,--icf=safe" )
+endif()
+
if( NOT LLVM_BUILD_STATIC )
# PIE is required for API 21+ so we enable it if we're not statically linking
# unfortunately, it is not supported before API 16 so we need to do something
_______________________________________________
lldb-commits mailing list
lldb-commits@lists.llvm.org
http://lists.llvm.org/cgi-bin/mailman/listinfo/lldb-commits
