int sig;
int code;
abi_ulong psc;
- char retcode[8];
abi_ulong extramask[TARGET_NSIG_WORDS-1];
struct target_sigcontext sc;
};
int sig;
abi_ulong pinfo;
abi_ulong puc;
- char retcode[8];
struct target_siginfo info;
struct target_ucontext uc;
};
{
struct target_sigframe *frame;
abi_ulong frame_addr;
- abi_ulong retcode_addr;
abi_ulong sc_addr;
int i;
}
/* 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;
{
struct target_rt_sigframe *frame;
abi_ulong frame_addr;
- abi_ulong retcode_addr;
abi_ulong info_addr;
abi_ulong uc_addr;
int err = 0;
}
/* 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;
force_sig(TARGET_SIGSEGV);
return -TARGET_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);
+}