diff options
Diffstat (limited to 'qemu_mode')
| -rw-r--r-- | qemu_mode/patches/afl-qemu-cpu-translate-inl.h | 36 | ||||
| -rw-r--r-- | qemu_mode/patches/afl-qemu-translate-inl.h | 3 |
2 files changed, 26 insertions, 13 deletions
diff --git a/qemu_mode/patches/afl-qemu-cpu-translate-inl.h b/qemu_mode/patches/afl-qemu-cpu-translate-inl.h index 4716c2ac..f85a86d7 100644 --- a/qemu_mode/patches/afl-qemu-cpu-translate-inl.h +++ b/qemu_mode/patches/afl-qemu-cpu-translate-inl.h @@ -45,11 +45,25 @@ extern u8 afl_compcov_level; void tcg_gen_afl_compcov_log_call(void *func, target_ulong cur_loc, TCGv_i64 arg1, TCGv_i64 arg2); +#if (defined(__x86_64__) || defined(__i386__)) && defined(AFL_QEMU_NOT_ZERO) +# define INC_AFL_AREA(loc) \ + asm volatile ( \ + "incb (%0, %1, 1)\n" \ + "adc $0, (%0, %1, 1)\n" \ + : /* no out */ \ + : "r" (afl_area_ptr), "r" (loc) \ + : "memory", "eax" \ + ) +#else +# define INC_AFL_AREA(loc) \ + afl_area_ptr[loc]++ +#endif + static void afl_compcov_log_16(target_ulong cur_loc, target_ulong arg1, target_ulong arg2) { if ((arg1 & 0xff) == (arg2 & 0xff)) { - afl_area_ptr[cur_loc]++; + INC_AFL_AREA(cur_loc); } } @@ -57,11 +71,11 @@ static void afl_compcov_log_32(target_ulong cur_loc, target_ulong arg1, target_ulong arg2) { if ((arg1 & 0xff) == (arg2 & 0xff)) { - afl_area_ptr[cur_loc]++; + INC_AFL_AREA(cur_loc); if ((arg1 & 0xffff) == (arg2 & 0xffff)) { - afl_area_ptr[cur_loc +1]++; + INC_AFL_AREA(cur_loc +1); if ((arg1 & 0xffffff) == (arg2 & 0xffffff)) { - afl_area_ptr[cur_loc +2]++; + INC_AFL_AREA(cur_loc +2); } } } @@ -71,19 +85,19 @@ static void afl_compcov_log_64(target_ulong cur_loc, target_ulong arg1, target_ulong arg2) { if ((arg1 & 0xff) == (arg2 & 0xff)) { - afl_area_ptr[cur_loc]++; + INC_AFL_AREA(cur_loc); if ((arg1 & 0xffff) == (arg2 & 0xffff)) { - afl_area_ptr[cur_loc +1]++; + INC_AFL_AREA(cur_loc +1); if ((arg1 & 0xffffff) == (arg2 & 0xffffff)) { - afl_area_ptr[cur_loc +2]++; + INC_AFL_AREA(cur_loc +2); if ((arg1 & 0xffffffff) == (arg2 & 0xffffffff)) { - afl_area_ptr[cur_loc +3]++; + INC_AFL_AREA(cur_loc +3); if ((arg1 & 0xffffffffff) == (arg2 & 0xffffffffff)) { - afl_area_ptr[cur_loc +4]++; + INC_AFL_AREA(cur_loc +4); if ((arg1 & 0xffffffffffff) == (arg2 & 0xffffffffffff)) { - afl_area_ptr[cur_loc +5]++; + INC_AFL_AREA(cur_loc +5); if ((arg1 & 0xffffffffffffff) == (arg2 & 0xffffffffffffff)) { - afl_area_ptr[cur_loc +6]++; + INC_AFL_AREA(cur_loc +6); } } } diff --git a/qemu_mode/patches/afl-qemu-translate-inl.h b/qemu_mode/patches/afl-qemu-translate-inl.h index f82d1217..48d05179 100644 --- a/qemu_mode/patches/afl-qemu-translate-inl.h +++ b/qemu_mode/patches/afl-qemu-translate-inl.h @@ -51,8 +51,7 @@ void afl_maybe_log(target_ulong cur_loc) { #if (defined(__x86_64__) || defined(__i386__)) && defined(AFL_QEMU_NOT_ZERO) asm volatile ( "incb (%0, %1, 1)\n" - "seto %%al\n" - "addb %%al, (%0, %1, 1)\n" + "adc $0, (%0, %1, 1)\n" : /* no out */ : "r" (afl_area_ptr), "r" (afl_idx) : "memory", "eax" |