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
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Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=317215
@ -40,6 +40,10 @@ CFLAGS+= -DLLVM_DEFAULT_TARGET_TRIPLE=\"${TARGET_TRIPLE}\"
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CFLAGS+= -DLLVM_HOST_TRIPLE=\"${BUILD_TRIPLE}\"
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CFLAGS+= -DDEFAULT_SYSROOT=\"${TOOLS_PREFIX}\"
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CFLAGS+= -ffunction-sections
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CFLAGS+= -fdata-sections
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LDFLAGS+= -Wl,--gc-sections
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CXXFLAGS+= -std=c++11
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CXXFLAGS+= -fno-exceptions
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CXXFLAGS+= -fno-rtti
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