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Merge pull request #1543 from quinox/feat-make-on-gentoo

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Support building LTO on Gentoo
This commit is contained in:
van Hauser
2022-10-10 17:08:01 +02:00
committed by GitHub
parent db4fa9319d 680e6e91a1
commit c5008362c6
1 changed files with 12 additions and 1 deletions
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13
GNUmakefile.llvm
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@ -214,6 +214,17 @@ ifeq "$(LLVM_LTO)" "1"
ifeq "$(AFL_REAL_LD)" ""
ifneq "$(shell readlink $(LLVM_BINDIR)/ld.lld 2>&1)" ""
AFL_REAL_LD = $(LLVM_BINDIR)/ld.lld
else ifneq "$(shell command -v ld.lld 2>/dev/null)" ""
AFL_REAL_LD = $(shell command -v ld.lld)
TMP_LDLDD_VERSION = $(shell $(AFL_REAL_LD) --version | awk '{ print $$2 }')
ifeq "$(LLVMVER)" "$(TMP_LDLDD_VERSION)"
$(warning ld.lld found in a weird location ($(AFL_REAL_LD)), but its the same version as LLVM so we will allow it)
else
$(warning ld.lld found in a weird location ($(AFL_REAL_LD)) and its of a different version than LLMV ($(TMP_LDLDD_VERSION) vs. $(LLVMVER)) - cannot enable LTO mode)
AFL_REAL_LD=
LLVM_LTO = 0
endif
undefine TMP_LDLDD_VERSION
else
$(warning ld.lld not found, cannot enable LTO mode)
LLVM_LTO = 0
@ -229,7 +240,7 @@ AFL_CLANG_FUSELD=
ifeq "$(LLVM_LTO)" "1"
ifeq "$(shell echo 'int main() {return 0; }' | $(CLANG_BIN) -x c - -fuse-ld=`command -v ld` -o .test 2>/dev/null && echo 1 || echo 0 ; rm -f .test )" "1"
AFL_CLANG_FUSELD=1
ifeq "$(shell echo 'int main() {return 0; }' | $(CLANG_BIN) -x c - -fuse-ld=ld.lld --ld-path=$(LLVM_BINDIR)/ld.lld -o .test 2>/dev/null && echo 1 || echo 0 ; rm -f .test )" "1"
ifeq "$(shell echo 'int main() {return 0; }' | $(CLANG_BIN) -x c - -fuse-ld=ld.lld --ld-path=$(AFL_REAL_LD) -o .test 2>/dev/null && echo 1 || echo 0 ; rm -f .test )" "1"
AFL_CLANG_LDPATH=1
endif
else