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m68k: Use get_signal() signal_setup_done() 

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

Signed-off-by: Richard Weinberger <richard@nod.at>
This commit is contained in:
Richard Weinberger 2013-10-07 22:55:48 +02:00 committed by Richard Weinberger
parent 0f5bef660a
commit 0d97500d39
1 changed files with 24 additions and 39 deletions
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63
arch/m68k/kernel/signal.c
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@ -850,23 +850,23 @@ get_sigframe(struct k_sigaction *ka, struct pt_regs *regs, size_t frame_size)
return (void __user *)((usp - frame_size) & -8UL);
}
static int setup_frame (int sig, struct k_sigaction *ka,
sigset_t *set, struct pt_regs *regs)
static int setup_frame(struct ksignal *ksig, sigset_t *set,
struct pt_regs *regs)
{
struct sigframe __user *frame;
int fsize = frame_extra_sizes(regs->format);
struct sigcontext context;
int err = 0;
int err = 0, sig = ksig->sig;
if (fsize < 0) {
#ifdef DEBUG
printk ("setup_frame: Unknown frame format %#x\n",
regs->format);
#endif
goto give_sigsegv;
return -EFAULT;
}
frame = get_sigframe(ka, regs, sizeof(*frame) + fsize);
frame = get_sigframe(&ksig->ka, regs, sizeof(*frame) + fsize);
if (fsize)
err |= copy_to_user (frame + 1, regs + 1, fsize);
@ -899,7 +899,7 @@ static int setup_frame (int sig, struct k_sigaction *ka,
#endif
if (err)
goto give_sigsegv;
return -EFAULT;
push_cache ((unsigned long) &frame->retcode);
@ -908,7 +908,7 @@ static int setup_frame (int sig, struct k_sigaction *ka,
* to destroy is successfully copied to sigframe.
*/
wrusp ((unsigned long) frame);
regs->pc = (unsigned long) ka->sa.sa_handler;
regs->pc = (unsigned long) ksig->ka.sa.sa_handler;
adjustformat(regs);
/*
@ -934,28 +934,24 @@ static int setup_frame (int sig, struct k_sigaction *ka,
tregs->sr = regs->sr;
}
return 0;
give_sigsegv:
force_sigsegv(sig, current);
return err;
}
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 fsize = frame_extra_sizes(regs->format);
int err = 0;
int err = 0, sig = ksig->sig;
if (fsize < 0) {
#ifdef DEBUG
printk ("setup_frame: Unknown frame format %#x\n",
regs->format);
#endif
goto give_sigsegv;
return -EFAULT;
}
frame = get_sigframe(ka, regs, sizeof(*frame));
frame = get_sigframe(&ksig->ka, regs, sizeof(*frame));
if (fsize)
err |= copy_to_user (&frame->uc.uc_extra, regs + 1, fsize);
@ -968,7 +964,7 @@ static int setup_rt_frame (int sig, struct k_sigaction *ka, siginfo_t *info,
&frame->sig);
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);
/* Create the ucontext. */
err |= __put_user(0, &frame->uc.uc_flags);
@ -996,7 +992,7 @@ static int setup_rt_frame (int sig, struct k_sigaction *ka, siginfo_t *info,
#endif /* CONFIG_MMU */
if (err)
goto give_sigsegv;
return -EFAULT;
push_cache ((unsigned long) &frame->retcode);
@ -1005,7 +1001,7 @@ static int setup_rt_frame (int sig, struct k_sigaction *ka, siginfo_t *info,
* to destroy is successfully copied to sigframe.
*/
wrusp ((unsigned long) frame);
regs->pc = (unsigned long) ka->sa.sa_handler;
regs->pc = (unsigned long) ksig->ka.sa.sa_handler;
adjustformat(regs);
/*
@ -1031,10 +1027,6 @@ static int setup_rt_frame (int sig, struct k_sigaction *ka, siginfo_t *info,
tregs->sr = regs->sr;
}
return 0;
give_sigsegv:
force_sigsegv(sig, current);
return err;
}
static inline void
@ -1074,26 +1066,22 @@ handle_restart(struct pt_regs *regs, struct k_sigaction *ka, int has_handler)
* OK, we're invoking a handler
*/
static void
handle_signal(int sig, struct k_sigaction *ka, siginfo_t *info,
struct pt_regs *regs)
handle_signal(struct ksignal *ksig, struct pt_regs *regs)
{
sigset_t *oldset = sigmask_to_save();
int err;
/* are we from a system call? */
if (regs->orig_d0 >= 0)
/* If so, check system call restarting.. */
handle_restart(regs, ka, 1);
handle_restart(regs, &ksig->ka, 1);
/* set up the stack frame */
if (ka->sa.sa_flags & SA_SIGINFO)
err = setup_rt_frame(sig, ka, info, oldset, regs);
if (ksig->ka.sa.sa_flags & SA_SIGINFO)
err = setup_rt_frame(ksig, oldset, regs);
else
err = setup_frame(sig, ka, oldset, regs);
err = setup_frame(ksig, oldset, regs);
if (err)
return;
signal_delivered(sig, info, ka, regs, 0);
signal_setup_done(err, ksig, 0);
if (test_thread_flag(TIF_DELAYED_TRACE)) {
regs->sr &= ~0x8000;
@ -1108,16 +1096,13 @@ handle_signal(int sig, struct k_sigaction *ka, siginfo_t *info,
*/
static void do_signal(struct pt_regs *regs)
{
siginfo_t info;
struct k_sigaction ka;
int signr;
struct ksignal ksig;
current->thread.esp0 = (unsigned long) regs;
signr = get_signal_to_deliver(&info, &ka, regs, NULL);
if (signr > 0) {
if (get_signal(&ksig)) {
/* Whee! Actually deliver the signal. */
handle_signal(signr, &ka, &info, regs);
handle_signal(&ksig, regs);
return;
}