diff options
Diffstat (limited to 'qemu_mode/patches/syscall.diff')
| -rw-r--r-- | qemu_mode/patches/syscall.diff | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/qemu_mode/patches/syscall.diff b/qemu_mode/patches/syscall.diff new file mode 100644 index 00000000..55b29140 --- /dev/null +++ b/qemu_mode/patches/syscall.diff @@ -0,0 +1,35 @@ +--- qemu-2.10.0-rc3-clean/linux-user/syscall.c 2017-08-15 11:39:41.000000000 -0700 ++++ qemu-2.10.0-rc3/linux-user/syscall.c 2017-08-22 14:34:03.193088186 -0700 +@@ -116,6 +116,8 @@ + + #include "qemu.h" + ++extern unsigned int afl_forksrv_pid; ++ + #ifndef CLONE_IO + #define CLONE_IO 0x80000000 /* Clone io context */ + #endif +@@ -11688,8 +11690,21 @@ + break; + + case TARGET_NR_tgkill: +- ret = get_errno(safe_tgkill((int)arg1, (int)arg2, +- target_to_host_signal(arg3))); ++ ++ { ++ int pid = (int)arg1, ++ tgid = (int)arg2, ++ sig = (int)arg3; ++ ++ /* Not entirely sure if the below is correct for all architectures. */ ++ ++ if(afl_forksrv_pid && afl_forksrv_pid == pid && sig == SIGABRT) ++ pid = tgid = getpid(); ++ ++ ret = get_errno(safe_tgkill(pid, tgid, target_to_host_signal(sig))); ++ ++ } ++ + break; + + #ifdef TARGET_NR_set_robust_list |