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add our own inline trace-pc-guard

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This commit is contained in:
van Hauser
2020-10-31 14:18:58 +01:00
parent dfb847a51b
commit f810639ab1
4 changed files with 1351 additions and 3 deletions
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15
src/afl-cc.c
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@ -501,11 +501,22 @@ static void edit_params(u32 argc, char **argv, char **envp) {
if (instrument_mode == INSTRUMENT_PCGUARD) {
#if LLVM_MAJOR >= 4
#if LLVM_MAJOR >= 10
cc_params[cc_par_cnt++] = "-Xclang";
cc_params[cc_par_cnt++] = "-load";
cc_params[cc_par_cnt++] = "-Xclang";
cc_params[cc_par_cnt++] =
"-fsanitize-coverage=trace-pc-guard"; // edge coverage by default
alloc_printf("%s/SanitizerCoveragePCGUARD.so", obj_path);
#else
#if LLVM_MAJOR >= 4
if (!be_quiet)
SAYF(
"Using unoptimized trace-pc-guard, upgrade to llvm 10+ for "
"enhanced version.\n");
cc_params[cc_par_cnt++] = "-fsanitize-coverage=trace-pc-guard";
#else
FATAL("pcguard instrumentation requires llvm 4.0.1+");
#endif
#endif
} else {