Author: dim
Date: Thu Apr 20 21:00:09 2017
New Revision: 317215
URL: https://svnweb.freebsd.org/changeset/base/317215
Log:
Add function and data sections when building llvm, clang, lld and lldb,
and allow the linker to garbage collect them. This shaves off up to a
few MB from the final executables.
MFC after: 3 days
Modified:
head/lib/clang/llvm.build.mk
Modified: head/lib/clang/llvm.build.mk
==============================================================================
--- head/lib/clang/llvm.build.mk Thu Apr 20 21:00:04 2017
(r317214)
+++ head/lib/clang/llvm.build.mk Thu Apr 20 21:00:09 2017
(r317215)
@@ -40,6 +40,10 @@ CFLAGS+= -DLLVM_DEFAULT_TARGET_TRIPLE=\"
CFLAGS+= -DLLVM_HOST_TRIPLE=\"${BUILD_TRIPLE}\"
CFLAGS+= -DDEFAULT_SYSROOT=\"${TOOLS_PREFIX}\"
+CFLAGS+= -ffunction-sections
+CFLAGS+= -fdata-sections
+LDFLAGS+= -Wl,--gc-sections
+
CXXFLAGS+= -std=c++11
CXXFLAGS+= -fno-exceptions
CXXFLAGS+= -fno-rtti
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