diff options
Diffstat (limited to 'instrumentation/afl-compiler-rt.o.c')
| -rw-r--r-- | instrumentation/afl-compiler-rt.o.c | 28 |
1 files changed, 24 insertions, 4 deletions
diff --git a/instrumentation/afl-compiler-rt.o.c b/instrumentation/afl-compiler-rt.o.c index f241447a..552bbea8 100644 --- a/instrumentation/afl-compiler-rt.o.c +++ b/instrumentation/afl-compiler-rt.o.c @@ -34,8 +34,10 @@ #include <errno.h> #include <sys/mman.h> -#include <sys/syscall.h> #ifndef __HAIKU__ + #include <sys/syscall.h> +#endif +#ifndef USEMMAP #include <sys/shm.h> #endif #include <sys/wait.h> @@ -76,6 +78,10 @@ #define MAP_INITIAL_SIZE MAP_SIZE #endif +#if defined(__HAIKU__) + extern ssize_t _kern_write(int fd, off_t pos, const void *buffer, size_t bufferSize); +#endif // HAIKU + u8 __afl_area_initial[MAP_INITIAL_SIZE]; u8 * __afl_area_ptr_dummy = __afl_area_initial; u8 * __afl_area_ptr = __afl_area_initial; @@ -99,12 +105,10 @@ int __afl_selective_coverage_temp = 1; PREV_LOC_T __afl_prev_loc[NGRAM_SIZE_MAX]; PREV_LOC_T __afl_prev_caller[CTX_MAX_K]; u32 __afl_prev_ctx; -u32 __afl_cmp_counter; #else __thread PREV_LOC_T __afl_prev_loc[NGRAM_SIZE_MAX]; __thread PREV_LOC_T __afl_prev_caller[CTX_MAX_K]; __thread u32 __afl_prev_ctx; -__thread u32 __afl_cmp_counter; #endif int __afl_sharedmem_fuzzing __attribute__((weak)); @@ -1140,6 +1144,18 @@ void __afl_manual_init(void) { __attribute__((constructor())) void __afl_auto_init(void) { +#ifdef __ANDROID__ + // Disable handlers in linker/debuggerd, check include/debuggerd/handler.h + signal(SIGABRT, SIG_DFL); + signal(SIGBUS, SIG_DFL); + signal(SIGFPE, SIG_DFL); + signal(SIGILL, SIG_DFL); + signal(SIGSEGV, SIG_DFL); + signal(SIGSTKFLT, SIG_DFL); + signal(SIGSYS, SIG_DFL); + signal(SIGTRAP, SIG_DFL); +#endif + if (getenv("AFL_DISABLE_LLVM_INSTRUMENTATION")) return; if (getenv(DEFER_ENV_VAR)) return; @@ -1738,7 +1754,11 @@ static int area_is_valid(void *ptr, size_t len) { if (unlikely(!ptr || __asan_region_is_poisoned(ptr, len))) { return 0; } - long r = syscall(SYS_write, __afl_dummy_fd[1], ptr, len); + #ifndef __HAIKU__ + long r = syscall(SYS_write, __afl_dummy_fd[1], ptr, len); + #else + long r = _kern_write(__afl_dummy_fd[1], -1, ptr, len); + #endif // HAIKU if (r <= 0 || r > len) return 0; |