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LTO: apply laf-intel+redqueen/cmplog at link time

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This commit is contained in:
van Hauser
2020-08-13 21:27:11 +02:00
parent 8e984c2aa0
commit 212bb990b7
11 changed files with 213 additions and 53 deletions
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104
llvm_mode/afl-clang-fast.c
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@ -246,33 +246,60 @@ static void edit_params(u32 argc, char **argv, char **envp) {
// laf
if (getenv("LAF_SPLIT_SWITCHES") || getenv("AFL_LLVM_LAF_SPLIT_SWITCHES")) {
cc_params[cc_par_cnt++] = "-Xclang";
cc_params[cc_par_cnt++] = "-load";
cc_params[cc_par_cnt++] = "-Xclang";
cc_params[cc_par_cnt++] =
alloc_printf("%s/split-switches-pass.so", obj_path);
if (lto_mode) {
cc_params[cc_par_cnt++] =
alloc_printf("-Wl,-mllvm=-load=%s/split-switches-pass.so", obj_path);
} else {
cc_params[cc_par_cnt++] = "-Xclang";
cc_params[cc_par_cnt++] = "-load";
cc_params[cc_par_cnt++] = "-Xclang";
cc_params[cc_par_cnt++] =
alloc_printf("%s/split-switches-pass.so", obj_path);
}
}
if (getenv("LAF_TRANSFORM_COMPARES") ||
getenv("AFL_LLVM_LAF_TRANSFORM_COMPARES")) {
cc_params[cc_par_cnt++] = "-Xclang";
cc_params[cc_par_cnt++] = "-load";
cc_params[cc_par_cnt++] = "-Xclang";
cc_params[cc_par_cnt++] =
alloc_printf("%s/compare-transform-pass.so", obj_path);
if (lto_mode) {
cc_params[cc_par_cnt++] = alloc_printf(
"-Wl,-mllvm=-load=%s/compare-transform-pass.so", obj_path);
} else {
cc_params[cc_par_cnt++] = "-Xclang";
cc_params[cc_par_cnt++] = "-load";
cc_params[cc_par_cnt++] = "-Xclang";
cc_params[cc_par_cnt++] =
alloc_printf("%s/compare-transform-pass.so", obj_path);
}
}
if (getenv("LAF_SPLIT_COMPARES") || getenv("AFL_LLVM_LAF_SPLIT_COMPARES") ||
getenv("AFL_LLVM_LAF_SPLIT_FLOATS")) {
cc_params[cc_par_cnt++] = "-Xclang";
cc_params[cc_par_cnt++] = "-load";
cc_params[cc_par_cnt++] = "-Xclang";
cc_params[cc_par_cnt++] =
alloc_printf("%s/split-compares-pass.so", obj_path);
if (lto_mode) {
cc_params[cc_par_cnt++] =
alloc_printf("-Wl,-mllvm=-load=%s/split-compares-pass.so", obj_path);
} else {
cc_params[cc_par_cnt++] = "-Xclang";
cc_params[cc_par_cnt++] = "-load";
cc_params[cc_par_cnt++] = "-Xclang";
cc_params[cc_par_cnt++] =
alloc_printf("%s/split-compares-pass.so", obj_path);
}
}
@ -282,24 +309,37 @@ static void edit_params(u32 argc, char **argv, char **envp) {
unsetenv("AFL_LD_CALLER");
if (cmplog_mode) {
cc_params[cc_par_cnt++] = "-Xclang";
cc_params[cc_par_cnt++] = "-load";
cc_params[cc_par_cnt++] = "-Xclang";
cc_params[cc_par_cnt++] =
alloc_printf("%s/cmplog-routines-pass.so", obj_path);
if (lto_mode) {
// reuse split switches from laf
cc_params[cc_par_cnt++] = "-Xclang";
cc_params[cc_par_cnt++] = "-load";
cc_params[cc_par_cnt++] = "-Xclang";
cc_params[cc_par_cnt++] =
alloc_printf("%s/split-switches-pass.so", obj_path);
cc_params[cc_par_cnt++] =
alloc_printf("-Wl,-mllvm=-load=%s/cmplog-routines-pass.so", obj_path);
cc_params[cc_par_cnt++] =
alloc_printf("-Wl,-mllvm=-load=%s/split-switches-pass.so", obj_path);
cc_params[cc_par_cnt++] = alloc_printf(
"-Wl,-mllvm=-load=%s/cmplog-instructions-pass.so", obj_path);
cc_params[cc_par_cnt++] = "-Xclang";
cc_params[cc_par_cnt++] = "-load";
cc_params[cc_par_cnt++] = "-Xclang";
cc_params[cc_par_cnt++] =
alloc_printf("%s/cmplog-instructions-pass.so", obj_path);
} else {
cc_params[cc_par_cnt++] = "-Xclang";
cc_params[cc_par_cnt++] = "-load";
cc_params[cc_par_cnt++] = "-Xclang";
cc_params[cc_par_cnt++] =
alloc_printf("%s/cmplog-routines-pass.so", obj_path);
// reuse split switches from laf
cc_params[cc_par_cnt++] = "-Xclang";
cc_params[cc_par_cnt++] = "-load";
cc_params[cc_par_cnt++] = "-Xclang";
cc_params[cc_par_cnt++] =
alloc_printf("%s/split-switches-pass.so", obj_path);
cc_params[cc_par_cnt++] = "-Xclang";
cc_params[cc_par_cnt++] = "-load";
cc_params[cc_par_cnt++] = "-Xclang";
cc_params[cc_par_cnt++] =
alloc_printf("%s/cmplog-instructions-pass.so", obj_path);
}
cc_params[cc_par_cnt++] = "-fno-inline";
@ -314,6 +354,7 @@ static void edit_params(u32 argc, char **argv, char **envp) {
cc_params[cc_par_cnt++] = alloc_printf("-fuse-ld=%s", AFL_REAL_LD);
cc_params[cc_par_cnt++] = "-Wl,--allow-multiple-definition";
/*
The current LTO instrim mode is not good, so we disable it
if (instrument_mode == INSTRUMENT_CFG)
@ -321,6 +362,7 @@ static void edit_params(u32 argc, char **argv, char **envp) {
alloc_printf("-Wl,-mllvm=-load=%s/afl-llvm-lto-instrim.so",
obj_path); else
*/
cc_params[cc_par_cnt++] = alloc_printf(
"-Wl,-mllvm=-load=%s/afl-llvm-lto-instrumentation.so", obj_path);
cc_params[cc_par_cnt++] = lto_flag;