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fix 32/64 bit LTO

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This commit is contained in:
van Hauser
2020-04-12 14:04:17 +02:00
parent aaf8835cdb
commit ec67780854
2 changed files with 24 additions and 12 deletions
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3
llvm_mode/GNUmakefile
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@ -275,6 +275,7 @@ ifeq "$(LLVM_LTO)" "1"
$(CXX) $(CLANG_CFL) -Wno-writable-strings -fno-rtti -fPIC -std=$(LLVM_STDCXX) -shared $< -o $@ $(CLANG_LFL)
$(CC) $(CFLAGS) -Wno-unused-result -O0 $(AFL_CLANG_FLTO) -fPIC -c afl-llvm-rt-lto.o.c -o ../afl-llvm-rt-lto.o
@$(CC) $(CFLAGS) -Wno-unused-result -O0 $(AFL_CLANG_FLTO) -m64 -fPIC -c afl-llvm-rt-lto.o.c -o ../afl-llvm-rt-lto-64.o 2>/dev/null; if [ "$$?" = "0" ]; then : ; fi
@$(CC) $(CFLAGS) -Wno-unused-result -O0 $(AFL_CLANG_FLTO) -m32 -fPIC -c afl-llvm-rt-lto.o.c -o ../afl-llvm-rt-lto-32.o 2>/dev/null; if [ "$$?" = "0" ]; then : ; fi
endif
# laf
@ -360,4 +361,4 @@ endif
clean:
rm -f *.o *.so *~ a.out core core.[1-9][0-9]* .test2 test-instr .test-instr0 .test-instr1 *.dwo
rm -f $(PROGS) afl-common.o ../afl-clang-fast++ ../afl-clang-lto ../afl-clang-lto++ ../afl-clang*.8 ../ld
rm -f $(PROGS) afl-common.o ../afl-clang-fast++ ../afl-clang-lto ../afl-clang-lto++ ../afl-clang*.8 ../ld ../afl-ld ../afl-llvm-rt*.o

31
llvm_mode/afl-clang-fast.c
View File

@ -485,28 +485,39 @@ static void edit_params(u32 argc, char **argv, char **envp) {
switch (bit_mode) {
case 0:
cc_params[cc_par_cnt++] = alloc_printf("%s/afl-llvm-rt.o", obj_path);
if (instrument_mode == INSTRUMENT_LTO)
cc_params[cc_par_cnt++] =
alloc_printf("%s/afl-llvm-rt%s.o", obj_path,
instrument_mode == INSTRUMENT_LTO ? "-lto" : "");
alloc_printf("%s/afl-llvm-rt-lto.o", obj_path);
break;
case 32:
cc_params[cc_par_cnt++] =
alloc_printf("%s/afl-llvm-rt%s-32.o", obj_path,
instrument_mode == INSTRUMENT_LTO ? "-lto" : "");
cc_params[cc_par_cnt++] = alloc_printf("%s/afl-llvm-rt-32.o", obj_path);
if (access(cc_params[cc_par_cnt - 1], R_OK))
FATAL("-m32 is not supported by your compiler");
if (instrument_mode == INSTRUMENT_LTO) {
cc_params[cc_par_cnt++] =
alloc_printf("%s/afl-llvm-rt-lto-32.o", obj_path);
if (access(cc_params[cc_par_cnt - 1], R_OK))
FATAL("-m32 is not supported by your compiler");
}
break;
case 64:
cc_params[cc_par_cnt++] =
alloc_printf("%s/afl-llvm-rt%s-64.o", obj_path,
instrument_mode == INSTRUMENT_LTO ? "-lto" : "");
cc_params[cc_par_cnt++] = alloc_printf("%s/afl-llvm-rt-64.o", obj_path);
if (access(cc_params[cc_par_cnt - 1], R_OK))
FATAL("-m64 is not supported by your compiler");
if (instrument_mode == INSTRUMENT_LTO) {
cc_params[cc_par_cnt++] =
alloc_printf("%s/afl-llvm-rt-lto-64.o", obj_path);
if (access(cc_params[cc_par_cnt - 1], R_OK))
FATAL("-m64 is not supported by your compiler");
}
break;