1 files changed, 28 insertions, 31 deletions

diff --git a/linux-user/m68k/signal.c b/linux-user/m68k/signal.c
index 4f8eb6f727..77555781aa 100644
--- a/linux-user/m68k/signal.c
+++ b/linux-user/m68k/signal.c
@@ -39,7 +39,6 @@ struct target_sigframe
     int sig;
     int code;
     abi_ulong psc;
-    char retcode[8];
     abi_ulong extramask[TARGET_NSIG_WORDS-1];
     struct target_sigcontext sc;
 };
@@ -76,7 +75,6 @@ struct target_rt_sigframe
     int sig;
     abi_ulong pinfo;
     abi_ulong puc;
-    char retcode[8];
     struct target_siginfo info;
     struct target_ucontext uc;
 };
@@ -130,7 +128,6 @@ void setup_frame(int sig, struct target_sigaction *ka,
 {
     struct target_sigframe *frame;
     abi_ulong frame_addr;
-    abi_ulong retcode_addr;
     abi_ulong sc_addr;
     int i;
 
@@ -152,16 +149,7 @@ void setup_frame(int sig, struct target_sigaction *ka,
     }
 
     /* Set up to return from userspace.  */
-
-    retcode_addr = frame_addr + offsetof(struct target_sigframe, retcode);
-    __put_user(retcode_addr, &frame->pretcode);
-
-    /* moveq #,d0; trap #0 */
-
-    __put_user(0x70004e40 + (TARGET_NR_sigreturn << 16),
-               (uint32_t *)(frame->retcode));
-
-    /* Set up to return from userspace */
+    __put_user(default_sigreturn, &frame->pretcode);
 
     env->aregs[7] = frame_addr;
     env->pc = ka->_sa_handler;
@@ -288,7 +276,6 @@ void setup_rt_frame(int sig, struct target_sigaction *ka,
 {
     struct target_rt_sigframe *frame;
     abi_ulong frame_addr;
-    abi_ulong retcode_addr;
     abi_ulong info_addr;
     abi_ulong uc_addr;
     int err = 0;
@@ -308,7 +295,7 @@ void setup_rt_frame(int sig, struct target_sigaction *ka,
     uc_addr = frame_addr + offsetof(struct target_rt_sigframe, uc);
     __put_user(uc_addr, &frame->puc);
 
-    tswap_siginfo(&frame->info, info);
+    frame->info = *info;
 
     /* Create the ucontext */
 
@@ -320,22 +307,12 @@ void setup_rt_frame(int sig, struct target_sigaction *ka,
     if (err)
         goto give_sigsegv;
 
-    for(i = 0; i < TARGET_NSIG_WORDS; i++) {
+    for (i = 0; i < TARGET_NSIG_WORDS; i++) {
         __put_user(set->sig[i], &frame->uc.tuc_sigmask.sig[i]);
     }
 
     /* Set up to return from userspace.  */
-
-    retcode_addr = frame_addr + offsetof(struct target_sigframe, retcode);
-    __put_user(retcode_addr, &frame->pretcode);
-
-    /* moveq #,d0; notb d0; trap #0 */
-
-    __put_user(0x70004600 + ((TARGET_NR_rt_sigreturn ^ 0xff) << 16),
-               (uint32_t *)(frame->retcode + 0));
-    __put_user(0x4e40, (uint16_t *)(frame->retcode + 4));
-
-    /* Set up to return from userspace */
+    __put_user(default_rt_sigreturn, &frame->pretcode);
 
     env->aregs[7] = frame_addr;
     env->pc = ka->_sa_handler;
@@ -376,11 +353,11 @@ long do_sigreturn(CPUM68KState *env)
     restore_sigcontext(env, &frame->sc);
 
     unlock_user_struct(frame, frame_addr, 0);
-    return -TARGET_QEMU_ESIGRETURN;
+    return -QEMU_ESIGRETURN;
 
 badframe:
     force_sig(TARGET_SIGSEGV);
-    return -TARGET_QEMU_ESIGRETURN;
+    return -QEMU_ESIGRETURN;
 }
 
 long do_rt_sigreturn(CPUM68KState *env)
@@ -404,10 +381,30 @@ long do_rt_sigreturn(CPUM68KState *env)
     target_restore_altstack(&frame->uc.tuc_stack, env);
 
     unlock_user_struct(frame, frame_addr, 0);
-    return -TARGET_QEMU_ESIGRETURN;
+    return -QEMU_ESIGRETURN;
 
 badframe:
     unlock_user_struct(frame, frame_addr, 0);
     force_sig(TARGET_SIGSEGV);
-    return -TARGET_QEMU_ESIGRETURN;
+    return -QEMU_ESIGRETURN;
+}
+
+void setup_sigtramp(abi_ulong sigtramp_page)
+{
+    void *tramp = lock_user(VERIFY_WRITE, sigtramp_page, 4 + 6, 0);
+    assert(tramp != NULL);
+
+    default_sigreturn = sigtramp_page;
+
+    /* moveq #,d0; trap #0 */
+    __put_user(0x70004e40 + (TARGET_NR_sigreturn << 16), (uint32_t *)tramp);
+
+    default_rt_sigreturn = sigtramp_page + 4;
+
+    /* moveq #,d0; notb d0; trap #0 */
+    __put_user(0x70004600 + ((TARGET_NR_rt_sigreturn ^ 0xff) << 16),
+               (uint32_t *)(tramp + 4));
+    __put_user(0x4e40, (uint16_t *)(tramp + 8));
+
+    unlock_user(tramp, sigtramp_page, 4 + 6);
 }