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authorRichard Weinberger <richard@nod.at>2013-10-07 15:01:08 +0200
committerRichard Weinberger <richard@sigma-star.at>2014-08-06 13:03:20 +0200
commitb3707c7ed013d36752272ca2f9ed20dc8aed92e4 (patch)
tree3b302c32a0ce9f30eda613994acb9e3f086dad9c /arch/tile/kernel/compat_signal.c
parentb46e848768acc458ba94feef162b8901592dbb9c (diff)
downloadlinux-b3707c7ed013d36752272ca2f9ed20dc8aed92e4.tar.bz2
tile: 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> Acked-by: Chris Metcalf <cmetcalf@tilera.com>
Diffstat (limited to 'arch/tile/kernel/compat_signal.c')
-rw-r--r--arch/tile/kernel/compat_signal.c29
1 files changed, 15 insertions, 14 deletions
diff --git a/arch/tile/kernel/compat_signal.c b/arch/tile/kernel/compat_signal.c
index 19c04b5ce408..8c5abf2e4794 100644
--- a/arch/tile/kernel/compat_signal.c
+++ b/arch/tile/kernel/compat_signal.c
@@ -190,18 +190,18 @@ static inline void __user *compat_get_sigframe(struct k_sigaction *ka,
return (void __user *) sp;
}
-int compat_setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
- sigset_t *set, struct pt_regs *regs)
+int compat_setup_rt_frame(struct ksignal *ksig, sigset_t *set,
+ struct pt_regs *regs)
{
unsigned long restorer;
struct compat_rt_sigframe __user *frame;
- int err = 0;
+ int err = 0, sig = ksig->sig;
int usig;
- frame = compat_get_sigframe(ka, regs, sizeof(*frame));
+ frame = compat_get_sigframe(&ksig->ka, regs, sizeof(*frame));
if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame)))
- goto give_sigsegv;
+ goto err;
usig = current_thread_info()->exec_domain
&& current_thread_info()->exec_domain->signal_invmap
@@ -210,12 +210,12 @@ int compat_setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
: sig;
/* Always write at least the signal number for the stack backtracer. */
- if (ka->sa.sa_flags & SA_SIGINFO) {
+ if (ksig->ka.sa.sa_flags & SA_SIGINFO) {
/* At sigreturn time, restore the callee-save registers too. */
- err |= copy_siginfo_to_user32(&frame->info, info);
+ err |= copy_siginfo_to_user32(&frame->info, &ksig->info);
regs->flags |= PT_FLAGS_RESTORE_REGS;
} else {
- err |= __put_user(info->si_signo, &frame->info.si_signo);
+ err |= __put_user(ksig->info.si_signo, &frame->info.si_signo);
}
/* Create the ucontext. */
@@ -226,11 +226,11 @@ int compat_setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
err |= setup_sigcontext(&frame->uc.uc_mcontext, regs);
err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set));
if (err)
- goto give_sigsegv;
+ goto err;
restorer = VDSO_SYM(&__vdso_rt_sigreturn);
- if (ka->sa.sa_flags & SA_RESTORER)
- restorer = ptr_to_compat_reg(ka->sa.sa_restorer);
+ if (ksig->ka.sa.sa_flags & SA_RESTORER)
+ restorer = ptr_to_compat_reg(ksig->ka.sa.sa_restorer);
/*
* Set up registers for signal handler.
@@ -239,7 +239,7 @@ int compat_setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
* We always pass siginfo and mcontext, regardless of SA_SIGINFO,
* since some things rely on this (e.g. glibc's debug/segfault.c).
*/
- regs->pc = ptr_to_compat_reg(ka->sa.sa_handler);
+ regs->pc = ptr_to_compat_reg(ksig->ka.sa.sa_handler);
regs->ex1 = PL_ICS_EX1(USER_PL, 1); /* set crit sec in handler */
regs->sp = ptr_to_compat_reg(frame);
regs->lr = restorer;
@@ -249,7 +249,8 @@ int compat_setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
regs->flags |= PT_FLAGS_CALLER_SAVES;
return 0;
-give_sigsegv:
- signal_fault("bad setup frame", regs, frame, sig);
+err:
+ trace_unhandled_signal("bad sigreturn frame", regs,
+ (unsigned long)frame, SIGSEGV);
return -EFAULT;
}