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authorLinus Torvalds <torvalds@woody.linux-foundation.org>2007-06-19 08:07:34 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-06-19 08:07:34 -0700
commit3197dac24f4f98808a47c68cdb8efeee8539add1 (patch)
tree6855c488c677d6be01e457161c3434628d0b2f10 /arch
parent710675d3609b1123a40db1eb28bf34041b1d37f2 (diff)
parent3aeb884b4ec442719a2d8aa15316415a7412efd8 (diff)
Merge master.kernel.org:/pub/scm/linux/kernel/git/lethal/sh-2.6
* master.kernel.org:/pub/scm/linux/kernel/git/lethal/sh-2.6: sh: Handle -ERESTART_RESTARTBLOCK for restartable syscalls. sh: oops_enter()/oops_exit() in die(). sh: Fix restartable syscall arg5 clobbering.
Diffstat (limited to 'arch')
-rw-r--r--arch/sh/kernel/signal.c9
-rw-r--r--arch/sh/kernel/traps.c3
2 files changed, 9 insertions, 3 deletions
diff --git a/arch/sh/kernel/signal.c b/arch/sh/kernel/signal.c
index b32c35a7c0a..e323e299878 100644
--- a/arch/sh/kernel/signal.c
+++ b/arch/sh/kernel/signal.c
@@ -268,7 +268,7 @@ asmlinkage int sys_rt_sigreturn(unsigned long r4, unsigned long r5,
badframe:
force_sig(SIGSEGV, current);
return 0;
-}
+}
/*
* Set up a signal frame.
@@ -481,7 +481,7 @@ give_sigsegv:
static int
handle_signal(unsigned long sig, struct k_sigaction *ka, siginfo_t *info,
- sigset_t *oldset, struct pt_regs *regs)
+ sigset_t *oldset, struct pt_regs *regs, unsigned int save_r0)
{
int ret;
@@ -489,6 +489,7 @@ handle_signal(unsigned long sig, struct k_sigaction *ka, siginfo_t *info,
if (regs->tra >= 0) {
/* If so, check system call restarting.. */
switch (regs->regs[0]) {
+ case -ERESTART_RESTARTBLOCK:
case -ERESTARTNOHAND:
regs->regs[0] = -EINTR;
break;
@@ -500,6 +501,7 @@ handle_signal(unsigned long sig, struct k_sigaction *ka, siginfo_t *info,
}
/* fallthrough */
case -ERESTARTNOINTR:
+ regs->regs[0] = save_r0;
regs->pc -= instruction_size(
ctrl_inw(regs->pc - 4));
break;
@@ -583,7 +585,8 @@ static void do_signal(struct pt_regs *regs, unsigned int save_r0)
signr = get_signal_to_deliver(&info, &ka, regs, NULL);
if (signr > 0) {
/* Whee! Actually deliver the signal. */
- if (handle_signal(signr, &ka, &info, oldset, regs) == 0) {
+ if (handle_signal(signr, &ka, &info, oldset,
+ regs, save_r0) == 0) {
/* a signal was successfully delivered; the saved
* sigmask will have been stored in the signal frame,
* and will be restored by sigreturn, so we can simply
diff --git a/arch/sh/kernel/traps.c b/arch/sh/kernel/traps.c
index 5b75cb6f8f9..8f18930d5bf 100644
--- a/arch/sh/kernel/traps.c
+++ b/arch/sh/kernel/traps.c
@@ -83,6 +83,8 @@ void die(const char * str, struct pt_regs * regs, long err)
{
static int die_counter;
+ oops_enter();
+
console_verbose();
spin_lock_irq(&die_lock);
bust_spinlocks(1);
@@ -112,6 +114,7 @@ void die(const char * str, struct pt_regs * regs, long err)
if (panic_on_oops)
panic("Fatal exception");
+ oops_exit();
do_exit(SIGSEGV);
}