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Add an env to afl-clang-fast to disable setting rpath if LLVM path isn't

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This commit is contained in:
Jesse Schwartzentruber
2023-10-19 17:14:31 -04:00
parent eaa6a1754a
commit cf458a7d25
3 changed files with 23 additions and 11 deletions
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27
src/afl-cc.c
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@ -1144,19 +1144,22 @@ static void edit_params(u32 argc, char **argv, char **envp) {
if (!have_pic) { cc_params[cc_par_cnt++] = "-fPIC"; }
// in case LLVM is installed not via a package manager or "make install"
// e.g. compiled download or compiled from github then its ./lib directory
// might not be in the search path. Add it if so.
u8 *libdir = strdup(LLVM_LIBDIR);
if (plusplus_mode && strlen(libdir) && strncmp(libdir, "/usr", 4) &&
strncmp(libdir, "/lib", 4)) {
if (!getenv("AFL_LLVM_NO_RPATH")) {
// in case LLVM is installed not via a package manager or "make install"
// e.g. compiled download or compiled from github then its ./lib directory
// might not be in the search path. Add it if so.
u8 *libdir = strdup(LLVM_LIBDIR);
if (plusplus_mode && strlen(libdir) && strncmp(libdir, "/usr", 4) &&
strncmp(libdir, "/lib", 4)) {
cc_params[cc_par_cnt++] = "-Wl,-rpath";
cc_params[cc_par_cnt++] = libdir;
cc_params[cc_par_cnt++] = "-Wl,-rpath";
cc_params[cc_par_cnt++] = libdir;
} else {
} else {
free(libdir);
free(libdir);
}
}
@ -2289,7 +2292,9 @@ int main(int argc, char **argv, char **envp) {
" AFL_LLVM_CTX: use full context sensitive coverage (for "
"CLASSIC)\n"
" AFL_LLVM_NGRAM_SIZE: use ngram prev_loc count coverage (for "
"CLASSIC)\n");
"CLASSIC)\n"
" AFL_LLVM_NO_RPATH: disable rpath setting for custom LLVM "
"locations\n");
#ifdef AFL_CLANG_FLTO
if (have_lto)