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Commit 0f5bef66 authored by Richard Weinberger's avatar Richard Weinberger Committed by Richard Weinberger
Browse files

m32r: Use get_signal() signal_setup_done() 



Use the more generic functions get_signal() signal_setup_done()
for signal delivery.

Signed-off-by: default avatarRichard Weinberger <richard@nod.at>
parent 98c20309

arch/m32r/kernel/signal.c

+20 −27
Original line number Diff line number Diff line
@@ -173,17 +173,17 @@ get_sigframe(struct k_sigaction *ka, unsigned long sp, size_t frame_size) 
	return (void __user *)((sp - frame_size) & -8ul);

}



static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,

			   sigset_t *set, struct pt_regs *regs)

static int setup_rt_frame(struct ksignal *ksig, sigset_t *set,

			  struct pt_regs *regs)

{

	struct rt_sigframe __user *frame;

	int err = 0;

	int signal;

	int signal, sig = ksig->sig;



	frame = get_sigframe(ka, regs->spu, sizeof(*frame));

	frame = get_sigframe(&ksig->ka, regs->spu, sizeof(*frame));



	if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame)))

		goto give_sigsegv;

		return -EFAULT;



	signal = current_thread_info()->exec_domain

		&& current_thread_info()->exec_domain->signal_invmap
@@ -193,13 +193,13 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info, 


	err |= __put_user(signal, &frame->sig);

	if (err)

		goto give_sigsegv;

		return -EFAULT;



	err |= __put_user(&frame->info, &frame->pinfo);

	err |= __put_user(&frame->uc, &frame->puc);

	err |= copy_siginfo_to_user(&frame->info, info);

	err |= copy_siginfo_to_user(&frame->info, &ksig->info);

	if (err)

		goto give_sigsegv;

		return -EFAULT;



	/* Create the ucontext.  */

	err |= __put_user(0, &frame->uc.uc_flags);
@@ -208,17 +208,17 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info, 
	err |= setup_sigcontext(&frame->uc.uc_mcontext, regs, set->sig[0]);

	err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set));

	if (err)

		goto give_sigsegv;

		return -EFAULT;



	/* Set up to return from userspace.  */

	regs->lr = (unsigned long)ka->sa.sa_restorer;

	regs->lr = (unsigned long)ksig->ka.sa.sa_restorer;



	/* Set up registers for signal handler */

	regs->spu = (unsigned long)frame;

	regs->r0 = signal;	/* Arg for signal handler */

	regs->r1 = (unsigned long)&frame->info;

	regs->r2 = (unsigned long)&frame->uc;

	regs->bpc = (unsigned long)ka->sa.sa_handler;

	regs->bpc = (unsigned long)ksig->ka.sa.sa_handler;



	set_fs(USER_DS);
@@ -228,10 +228,6 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info, 
#endif



	return 0;



give_sigsegv:

	force_sigsegv(sig, current);

	return -EFAULT;

}



static int prev_insn(struct pt_regs *regs)
@@ -252,9 +248,10 @@ static int prev_insn(struct pt_regs *regs) 
 */



static void

handle_signal(unsigned long sig, struct k_sigaction *ka, siginfo_t *info,

	      struct pt_regs *regs)

handle_signal(struct ksignal *ksig, struct pt_regs *regs)

{

	int ret;



	/* Are we from a system call? */

	if (regs->syscall_nr >= 0) {

		/* If so, check system call restarting.. */
@@ -265,7 +262,7 @@ handle_signal(unsigned long sig, struct k_sigaction *ka, siginfo_t *info, 
				break;



			case -ERESTARTSYS:

				if (!(ka->sa.sa_flags & SA_RESTART)) {

				if (!(ksig->ka.sa.sa_flags & SA_RESTART)) {

					regs->r0 = -EINTR;

					break;

				}
@@ -278,10 +275,9 @@ handle_signal(unsigned long sig, struct k_sigaction *ka, siginfo_t *info, 
	}



	/* Set up the stack frame */

	if (setup_rt_frame(sig, ka, info, sigmask_to_save(), regs))

		return;

	ret = setup_rt_frame(ksig, sigmask_to_save(), regs);



	signal_delivered(sig, info, ka, regs, 0);

	signal_setup_done(ret, ksig, 0);

}



/*
@@ -291,9 +287,7 @@ handle_signal(unsigned long sig, struct k_sigaction *ka, siginfo_t *info, 
 */

static void do_signal(struct pt_regs *regs)

{

	siginfo_t info;

	int signr;

	struct k_sigaction ka;

	struct ksignal ksig;



	/*

	 * We want the common case to go fast, which
@@ -304,8 +298,7 @@ static void do_signal(struct pt_regs *regs) 
	if (!user_mode(regs))

		return;



	signr = get_signal_to_deliver(&info, &ka, regs, NULL);

	if (signr > 0) {

	if (get_signal(&ksig)) {

		/* Re-enable any watchpoints before delivering the

		 * signal to user space. The processor register will

		 * have been cleared if the watchpoint triggered
@@ -313,7 +306,7 @@ static void do_signal(struct pt_regs *regs) 
		 */



		/* Whee!  Actually deliver the signal.  */

		handle_signal(signr, &ka, &info, regs);

		handle_signal(&ksig, regs);



		return;

	}