diff options
Diffstat (limited to 'qemu_mode/patches/afl-qemu-translate-inl.h')
| -rw-r--r-- | qemu_mode/patches/afl-qemu-translate-inl.h | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/qemu_mode/patches/afl-qemu-translate-inl.h b/qemu_mode/patches/afl-qemu-translate-inl.h index 74c827f5..bfb2897e 100644 --- a/qemu_mode/patches/afl-qemu-translate-inl.h +++ b/qemu_mode/patches/afl-qemu-translate-inl.h @@ -9,7 +9,8 @@ TCG instrumentation and block chaining support by Andrea Biondo <andrea.biondo965@gmail.com> - QEMU 3.1.0 port and thread-safety by Andrea Fioraldi + + QEMU 3.1.0 port, TCG thread-safety and CompareCoverage by Andrea Fioraldi <andreafioraldi@gmail.com> Copyright 2015, 2016, 2017 Google Inc. All rights reserved. @@ -41,12 +42,12 @@ extern abi_ulong afl_start_code, afl_end_code; void tcg_gen_afl_maybe_log_call(target_ulong cur_loc); -void afl_maybe_log(void* cur_loc) { +void afl_maybe_log(target_ulong cur_loc) { static __thread abi_ulong prev_loc; - afl_area_ptr[(abi_ulong)cur_loc ^ prev_loc]++; - prev_loc = (abi_ulong)cur_loc >> 1; + afl_area_ptr[cur_loc ^ prev_loc]++; + prev_loc = cur_loc >> 1; } @@ -59,7 +60,7 @@ static void afl_gen_trace(target_ulong cur_loc) { if (cur_loc > afl_end_code || cur_loc < afl_start_code /*|| !afl_area_ptr*/) // not needed because of static dummy buffer return; - /* Looks like QEMU always maps to fixed locations, so ASAN is not a + /* Looks like QEMU always maps to fixed locations, so ASLR is not a concern. Phew. But instruction addresses may be aligned. Let's mangle the value to get something quasi-uniform. */ |