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Commit 2bb12b77 authored by Richard Weinberger's avatar Richard Weinberger Committed by Richard Weinberger
Browse files

score: Use get_signal() signal_setup_done() 



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

Acked-by: default avatarLennox Wu <lennox.wu@gmail.com>
Signed-off-by: default avatarRichard Weinberger <richard@nod.at>
parent 067bf2d4

arch/score/kernel/signal.c

+18 −25
Original line number Diff line number Diff line
@@ -173,15 +173,15 @@ score_rt_sigreturn(struct pt_regs *regs) 
	return 0;

}



static int setup_rt_frame(struct k_sigaction *ka, struct pt_regs *regs,

		int signr, sigset_t *set, siginfo_t *info)

static int setup_rt_frame(struct ksignal *ksig, struct pt_regs *regs,

			  sigset_t *set)

{

	struct rt_sigframe __user *frame;

	int err = 0;



	frame = get_sigframe(ka, regs, sizeof(*frame));

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

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

		goto give_sigsegv;

		return -EFAULT;



	/*

	 * Set up the return code ...
@@ -194,7 +194,7 @@ static int setup_rt_frame(struct k_sigaction *ka, struct pt_regs *regs, 
	err |= __put_user(0x80008002, frame->rs_code + 1);

	flush_cache_sigtramp((unsigned long) frame->rs_code);



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

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

	err |= __put_user(0, &frame->rs_uc.uc_flags);

	err |= __put_user(NULL, &frame->rs_uc.uc_link);

	err |= __save_altstack(&frame->rs_uc.uc_stack, regs->regs[0]);
@@ -202,26 +202,23 @@ static int setup_rt_frame(struct k_sigaction *ka, struct pt_regs *regs, 
	err |= __copy_to_user(&frame->rs_uc.uc_sigmask, set, sizeof(*set));



	if (err)

		goto give_sigsegv;

		return -EFAULT;



	regs->regs[0] = (unsigned long) frame;

	regs->regs[3] = (unsigned long) frame->rs_code;

	regs->regs[4] = signr;

	regs->regs[4] = ksig->sig;

	regs->regs[5] = (unsigned long) &frame->rs_info;

	regs->regs[6] = (unsigned long) &frame->rs_uc;

	regs->regs[29] = (unsigned long) ka->sa.sa_handler;

	regs->cp0_epc = (unsigned long) ka->sa.sa_handler;

	regs->regs[29] = (unsigned long) ksig->ka.sa.sa_handler;

	regs->cp0_epc = (unsigned long) ksig->ka.sa.sa_handler;



	return 0;



give_sigsegv:

	force_sigsegv(signr, current);

	return -EFAULT;

}



static void handle_signal(unsigned long sig, siginfo_t *info,

	struct k_sigaction *ka, struct pt_regs *regs)

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

{

	int ret;



	if (regs->is_syscall) {

		switch (regs->regs[4]) {

		case ERESTART_RESTARTBLOCK:
@@ -229,7 +226,7 @@ static void handle_signal(unsigned long sig, siginfo_t *info, 
			regs->regs[4] = EINTR;

			break;

		case ERESTARTSYS:

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

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

				regs->regs[4] = EINTR;

				break;

			}
@@ -245,17 +242,14 @@ static void handle_signal(unsigned long sig, siginfo_t *info, 
	/*

	 * Set up the stack frame

	 */

	if (setup_rt_frame(ka, regs, sig, sigmask_to_save(), info) < 0)

		return;

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



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

	signal_setup_done(ret, ksig, 0);

}



static void do_signal(struct pt_regs *regs)

{

	struct k_sigaction ka;

	siginfo_t info;

	int signr;

	struct ksignal ksig;



	/*

	 * We want the common case to go fast, which is why we may in certain
@@ -265,10 +259,9 @@ 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)) {

		/* Actually deliver the signal.  */

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

		handle_signal(&ksig, regs);

		return;

	}