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| author | van Hauser <vh@thc.org> | 2020-04-17 19:25:34 +0200 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2020-04-17 19:25:34 +0200 |
| commit | ddea300822e5628482366ecb38adac31717d69bc (patch) | |
| tree | 113c1ba9df4b26d206a8bc0f3182222572e5f553 /qemu_mode/patches/afl-qemu-cpu-inl.h | |
| parent | 504529c3aa5c80937f9f722f90d0ec55e09c6dd2 (diff) | |
| parent | 9900c92ebc73a7706f4604c274ccf6430549e77e (diff) | |
| download | afl++-ddea300822e5628482366ecb38adac31717d69bc.tar.gz | |
Merge pull request #321 from AFLplusplus/dev 2.64c
Push for next release
Diffstat (limited to 'qemu_mode/patches/afl-qemu-cpu-inl.h')
| -rw-r--r-- | qemu_mode/patches/afl-qemu-cpu-inl.h | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/qemu_mode/patches/afl-qemu-cpu-inl.h b/qemu_mode/patches/afl-qemu-cpu-inl.h index 3bd107d7..06243141 100644 --- a/qemu_mode/patches/afl-qemu-cpu-inl.h +++ b/qemu_mode/patches/afl-qemu-cpu-inl.h @@ -293,7 +293,8 @@ static void print_mappings(void) { void afl_forkserver(CPUState *cpu) { - static unsigned char tmp[4]; + u32 map_size = 0; + unsigned char tmp[4] = {0}; if (forkserver_installed == 1) return; forkserver_installed = 1; @@ -306,6 +307,15 @@ void afl_forkserver(CPUState *cpu) { int t_fd[2]; u8 child_stopped = 0; + // if in the future qemu has non-collding coverage then switch MAP_SIZE + // with the max ID value + if (MAP_SIZE <= 0x800000) { + + map_size = (FS_OPT_ENABLED | FS_OPT_MAPSIZE | FS_OPT_SET_MAPSIZE(MAP_SIZE)); + memcpy(tmp, &map_size, 4); + + } + /* Tell the parent that we're alive. If the parent doesn't want to talk, assume that we're not running in forkserver mode. */ |