diff options
Diffstat (limited to 'llvm_mode')
| -rw-r--r-- | llvm_mode/README.instrument_list.md | 2 | ||||
| -rw-r--r-- | llvm_mode/README.persistent_mode.md | 3 |
2 files changed, 3 insertions, 2 deletions
diff --git a/llvm_mode/README.instrument_list.md b/llvm_mode/README.instrument_list.md index b0e0cc1e..d4739dda 100644 --- a/llvm_mode/README.instrument_list.md +++ b/llvm_mode/README.instrument_list.md @@ -71,7 +71,7 @@ must be mangled to match! afl++ is intelligent to identify if an entry is a filename or a function. However if you want to be sure (and compliant to the sancov allow/blocklist -format), you can file entries like this: +format), you can specify source file entries like this: ``` src: *malloc.c ``` diff --git a/llvm_mode/README.persistent_mode.md b/llvm_mode/README.persistent_mode.md index 5ed59a58..7d2fd93b 100644 --- a/llvm_mode/README.persistent_mode.md +++ b/llvm_mode/README.persistent_mode.md @@ -125,7 +125,7 @@ Add after the includes: extern unsigned char *__afl_area_ptr; #define MAX_DUMMY_SIZE 256000 -__attribute__((constructor(10))) void __afl_protect(void) { +__attribute__((constructor(1))) void __afl_protect(void) { #ifdef MAP_FIXED_NOREPLACE __afl_area_ptr = (unsigned char*) mmap((void *)0x10000, MAX_DUMMY_SIZE, PROT_READ | PROT_WRITE, MAP_FIXED_NOREPLACE | MAP_SHARED | MAP_ANONYMOUS, -1, 0); if ((uint64_t)__afl_area_ptr == -1) @@ -139,6 +139,7 @@ __attribute__((constructor(10))) void __afl_protect(void) { and just before `__AFL_INIT()`: ``` munmap(__afl_area_ptr, MAX_DUMMY_SIZE); + __afl_area_ptr = NULL; ``` ## 4) persistent mode |