98
96
if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set)))
101
sigdelsetmask(&set, ~_BLOCKABLE);
102
spin_lock_irq(¤t->sighand->siglock);
103
current->blocked = set;
105
spin_unlock_irq(¤t->sighand->siglock);
99
set_current_blocked(&set);
107
101
if (rt_restore_sigcontext(regs, &frame->uc.uc_mcontext, &r0))
193
187
err |= copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set));
198
192
/* Set up registers for signal handler */
199
wrusp((unsigned long)frame);
200
193
if (current->personality & FDPIC_FUNCPTRS) {
201
194
struct fdpic_func_descriptor __user *funcptr =
202
195
(struct fdpic_func_descriptor *) ka->sa.sa_handler;
203
__get_user(regs->pc, &funcptr->text);
204
__get_user(regs->p3, &funcptr->GOT);
197
err |= __get_user(pc, &funcptr->text);
198
err |= __get_user(p3, &funcptr->GOT);
206
204
regs->pc = (unsigned long)ka->sa.sa_handler;
205
wrusp((unsigned long)frame);
207
206
regs->rets = SIGRETURN_STUB;
209
208
regs->r0 = frame->sig;
253
246
* OK, we're invoking a handler
256
249
handle_signal(int sig, siginfo_t *info, struct k_sigaction *ka,
257
sigset_t *oldset, struct pt_regs *regs)
250
struct pt_regs *regs)
261
252
/* are we from a system call? to see pt_regs->orig_p0 */
262
253
if (regs->orig_p0 >= 0)
263
254
/* If so, check system call restarting.. */
264
255
handle_restart(regs, ka, 1);
266
257
/* set up the stack frame */
267
ret = setup_rt_frame(sig, ka, info, oldset, regs);
270
spin_lock_irq(¤t->sighand->siglock);
271
sigorsets(¤t->blocked, ¤t->blocked,
273
if (!(ka->sa.sa_flags & SA_NODEFER))
274
sigaddset(¤t->blocked, sig);
276
spin_unlock_irq(¤t->sighand->siglock);
258
if (setup_rt_frame(sig, ka, info, sigmask_to_save(), regs) < 0)
259
force_sigsegv(sig, current);
261
signal_delivered(sig, info, ka, regs,
262
test_thread_flag(TIF_SINGLESTEP));
294
278
struct k_sigaction ka;
297
280
current->thread.esp0 = (unsigned long)regs;
302
if (test_thread_flag(TIF_RESTORE_SIGMASK))
303
oldset = ¤t->saved_sigmask;
305
oldset = ¤t->blocked;
307
282
signr = get_signal_to_deliver(&info, &ka, regs, NULL);
309
284
/* Whee! Actually deliver the signal. */
310
if (handle_signal(signr, &info, &ka, oldset, regs) == 0) {
311
/* a signal was successfully delivered; the saved
312
* sigmask will have been stored in the signal frame,
313
* and will be restored by sigreturn, so we can simply
314
* clear the TIF_RESTORE_SIGMASK flag */
315
if (test_thread_flag(TIF_RESTORE_SIGMASK))
316
clear_thread_flag(TIF_RESTORE_SIGMASK);
318
tracehook_signal_handler(signr, &info, &ka, regs,
319
test_thread_flag(TIF_SINGLESTEP));
285
handle_signal(signr, &info, &ka, regs);
326
289
/* Did we come from a system call? */
327
290
if (regs->orig_p0 >= 0)
328
291
/* Restart the system call - no handlers present */
331
294
/* if there's no signal to deliver, we just put the saved sigmask
333
if (test_thread_flag(TIF_RESTORE_SIGMASK)) {
334
clear_thread_flag(TIF_RESTORE_SIGMASK);
335
sigprocmask(SIG_SETMASK, ¤t->saved_sigmask, NULL);
296
restore_saved_sigmask();
342
302
asmlinkage void do_notify_resume(struct pt_regs *regs)
344
if (test_thread_flag(TIF_SIGPENDING) || test_thread_flag(TIF_RESTORE_SIGMASK))
304
if (test_thread_flag(TIF_SIGPENDING))
347
307
if (test_thread_flag(TIF_NOTIFY_RESUME)) {
348
308
clear_thread_flag(TIF_NOTIFY_RESUME);
349
309
tracehook_notify_resume(regs);
350
if (current->replacement_session_keyring)
351
key_replace_session_keyring();