qemu_mode/patches/syscall.diff

diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index b13a170e..3f5cc902 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -111,6 +111,9 @@
 
 #include "qemu.h"
 #include "fd-trans.h"
+#include <linux/sockios.h>
+
+extern unsigned int afl_forksrv_pid;
 
 #ifndef CLONE_IO
 #define CLONE_IO                0x80000000      /* Clone io context */
@@ -250,7 +253,8 @@ static type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5,	\
 #endif
 
 #ifdef __NR_gettid
-_syscall0(int, gettid)
+#define __NR_sys_gettid __NR_gettid
+_syscall0(int, sys_gettid)
 #else
 /* This is a replacement for the host gettid() and must return a host
    errno. */
@@ -5384,7 +5388,7 @@ static void *clone_func(void *arg)
     cpu = ENV_GET_CPU(env);
     thread_cpu = cpu;
     ts = (TaskState *)cpu->opaque;
-    info->tid = gettid();
+    info->tid = sys_gettid();
     task_settid(ts);
     if (info->child_tidptr)
         put_user_u32(info->tid, info->child_tidptr);
@@ -5529,9 +5533,9 @@ static int do_fork(CPUArchState *env, unsigned int flags, abi_ulong newsp,
                mapping.  We can't repeat the spinlock hack used above because
                the child process gets its own copy of the lock.  */
             if (flags & CLONE_CHILD_SETTID)
-                put_user_u32(gettid(), child_tidptr);
+                put_user_u32(sys_gettid(), child_tidptr);
             if (flags & CLONE_PARENT_SETTID)
-                put_user_u32(gettid(), parent_tidptr);
+                put_user_u32(sys_gettid(), parent_tidptr);
             ts = (TaskState *)cpu->opaque;
             if (flags & CLONE_SETTLS)
                 cpu_set_tls (env, newtls);
@@ -6554,7 +6558,8 @@ static int open_self_cmdline(void *cpu_env, int fd)
     return 0;
 }
 
-static int open_self_maps(void *cpu_env, int fd)
+int open_self_maps(void *cpu_env, int fd);
+int open_self_maps(void *cpu_env, int fd)
 {
     CPUState *cpu = ENV_GET_CPU((CPUArchState *)cpu_env);
     TaskState *ts = cpu->opaque;
@@ -7324,10 +7329,12 @@ static abi_long do_syscall1(void *cpu_env, int num, abi_long arg1,
 #ifdef TARGET_NR_stime /* not on alpha */
     case TARGET_NR_stime:
         {
-            time_t host_time;
-            if (get_user_sal(host_time, arg1))
+            struct timespec ts;
+            ts.tv_nsec = 0;
+            if (get_user_sal(ts.tv_sec, arg1)) {
                 return -TARGET_EFAULT;
-            return get_errno(stime(&host_time));
+            }
+            return get_errno(clock_settime(CLOCK_REALTIME, &ts));
         }
 #endif
 #ifdef TARGET_NR_alarm /* not on alpha */
@@ -10529,7 +10536,7 @@ static abi_long do_syscall1(void *cpu_env, int num, abi_long arg1,
         return TARGET_PAGE_SIZE;
 #endif
     case TARGET_NR_gettid:
-        return get_errno(gettid());
+        return get_errno(sys_gettid());
 #ifdef TARGET_NR_readahead
     case TARGET_NR_readahead:
 #if TARGET_ABI_BITS == 32
@@ -10813,8 +10820,19 @@ static abi_long do_syscall1(void *cpu_env, int num, abi_long arg1,
         return get_errno(safe_tkill((int)arg1, target_to_host_signal(arg2)));
 
     case TARGET_NR_tgkill:
-        return 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)));
+
+        }
 
 #ifdef TARGET_NR_set_robust_list
     case TARGET_NR_set_robust_list: