diff options
Diffstat (limited to 'gcc_plugin/afl-gcc-rt.o.c')
| -rw-r--r-- | gcc_plugin/afl-gcc-rt.o.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/gcc_plugin/afl-gcc-rt.o.c b/gcc_plugin/afl-gcc-rt.o.c index 30606150..0a2246e7 100644 --- a/gcc_plugin/afl-gcc-rt.o.c +++ b/gcc_plugin/afl-gcc-rt.o.c @@ -138,8 +138,9 @@ static void __afl_map_shm(void) { static void __afl_start_forkserver(void) { - static u8 tmp[4]; - s32 child_pid; + u8 tmp[4] = {0, 0, 0, 0}; + u32 map_size = MAP_SIZE; + s32 child_pid; u8 child_stopped = 0; @@ -148,6 +149,13 @@ static void __afl_start_forkserver(void) { /* Phone home and tell the parent that we're OK. If parent isn't there, assume we're not running in forkserver mode and just execute program. */ + if (MAP_SIZE <= 0x800000) { + + map_size = (FS_OPT_ENABLED | FS_OPT_MAPSIZE | FS_OPT_SET_MAPSIZE(MAP_SIZE)); + memcpy(tmp, &map_size, 4); + + } + if (write(FORKSRV_FD + 1, tmp, 4) != 4) return; while (1) { |