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authorHarvey Harrison <harvey.harrison@gmail.com>2008-02-08 12:09:58 -0800
committerIngo Molnar <mingo@elte.hu>2008-04-17 17:40:46 +0200
commitac66f3fd89ee20b73b3374e6343c5e36e3e3c51a (patch)
tree87143604da040f1fa41be8952a2a4fecb663dec7 /arch/x86/kernel
parentc3e6ff87a3ad9124a67e149e4f9c080626a0d83e (diff)
x86: reduce trivial style differences in signal_32|64.c
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Cc: Roland McGrath <roland@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/x86/kernel')
-rw-r--r--arch/x86/kernel/signal_32.c64
-rw-r--r--arch/x86/kernel/signal_64.c47
2 files changed, 55 insertions, 56 deletions
diff --git a/arch/x86/kernel/signal_32.c b/arch/x86/kernel/signal_32.c
index a393e3711e08..182269b752da 100644
--- a/arch/x86/kernel/signal_32.c
+++ b/arch/x86/kernel/signal_32.c
@@ -131,14 +131,8 @@ restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc, int *peax
COPY_SEG(fs);
COPY_SEG(es);
COPY_SEG(ds);
- COPY(di);
- COPY(si);
- COPY(bp);
- COPY(sp);
- COPY(bx);
- COPY(dx);
- COPY(cx);
- COPY(ip);
+ COPY(di); COPY(si); COPY(bp); COPY(sp); COPY(bx);
+ COPY(dx); COPY(cx); COPY(ip);
COPY_SEG_STRICT(cs);
COPY_SEG_STRICT(ss);
@@ -412,7 +406,7 @@ static int setup_frame(int sig, struct k_sigaction *ka,
ptrace_notify(SIGTRAP);
#if DEBUG_SIG
- printk("SIG deliver (%s:%d): sp=%p pc=%p ra=%p\n",
+ printk("SIG deliver (%s:%d): sp=%p pc=%lx ra=%p\n",
current->comm, current->pid, frame, regs->ip, frame->pretcode);
#endif
@@ -522,7 +516,7 @@ give_sigsegv:
static int
handle_signal(unsigned long sig, siginfo_t *info, struct k_sigaction *ka,
- sigset_t *oldset, struct pt_regs * regs)
+ sigset_t *oldset, struct pt_regs *regs)
{
int ret;
@@ -530,20 +524,21 @@ handle_signal(unsigned long sig, siginfo_t *info, struct k_sigaction *ka,
if ((long)regs->orig_ax >= 0) {
/* If so, check system call restarting.. */
switch (regs->ax) {
- case -ERESTART_RESTARTBLOCK:
- case -ERESTARTNOHAND:
+ case -ERESTART_RESTARTBLOCK:
+ case -ERESTARTNOHAND:
+ regs->ax = -EINTR;
+ break;
+
+ case -ERESTARTSYS:
+ if (!(ka->sa.sa_flags & SA_RESTART)) {
regs->ax = -EINTR;
break;
-
- case -ERESTARTSYS:
- if (!(ka->sa.sa_flags & SA_RESTART)) {
- regs->ax = -EINTR;
- break;
- }
- /* fallthrough */
- case -ERESTARTNOINTR:
- regs->ax = regs->orig_ax;
- regs->ip -= 2;
+ }
+ /* fallthrough */
+ case -ERESTARTNOINTR:
+ regs->ax = regs->orig_ax;
+ regs->ip -= 2;
+ break;
}
}
@@ -580,18 +575,17 @@ handle_signal(unsigned long sig, siginfo_t *info, struct k_sigaction *ka,
*/
static void do_signal(struct pt_regs *regs)
{
+ struct k_sigaction ka;
siginfo_t info;
int signr;
- struct k_sigaction ka;
sigset_t *oldset;
/*
- * We want the common case to go fast, which
- * is why we may in certain cases get here from
- * kernel mode. Just return without doing anything
- * if so. vm86 regs switched out by assembly code
- * before reaching here, so testing against kernel
- * CS suffices.
+ * We want the common case to go fast, which is why we may in certain
+ * cases get here from kernel mode. Just return without doing anything
+ * if so.
+ * X86_32: vm86 regs switched out by assembly code before reaching
+ * here, so testing against kernel CS suffices.
*/
if (!user_mode(regs))
return;
@@ -608,7 +602,7 @@ static void do_signal(struct pt_regs *regs)
* have been cleared if the watchpoint triggered
* inside the kernel.
*/
- if (unlikely(current->thread.debugreg7))
+ if (current->thread.debugreg7)
set_debugreg(current->thread.debugreg7, 7);
/* Whee! Actually deliver the signal. */
@@ -642,8 +636,10 @@ static void do_signal(struct pt_regs *regs)
}
}
- /* if there's no signal to deliver, we just put the saved sigmask
- * back */
+ /*
+ * If there's no signal to deliver, we just put the saved sigmask
+ * back.
+ */
if (test_thread_flag(TIF_RESTORE_SIGMASK)) {
clear_thread_flag(TIF_RESTORE_SIGMASK);
sigprocmask(SIG_SETMASK, &current->saved_sigmask, NULL);
@@ -654,12 +650,12 @@ static void do_signal(struct pt_regs *regs)
* notification of userspace execution resumption
* - triggered by the TIF_WORK_MASK flags
*/
-void do_notify_resume(struct pt_regs *regs, void *_unused,
+void do_notify_resume(struct pt_regs *regs, void *unused,
__u32 thread_info_flags)
{
/* Pending single-step? */
if (thread_info_flags & _TIF_SINGLESTEP) {
- regs->flags |= TF_MASK;
+ regs->flags |= X86_EFLAGS_TF;
clear_thread_flag(TIF_SINGLESTEP);
}
diff --git a/arch/x86/kernel/signal_64.c b/arch/x86/kernel/signal_64.c
index 1c83e5124c65..863cebe8e60a 100644
--- a/arch/x86/kernel/signal_64.c
+++ b/arch/x86/kernel/signal_64.c
@@ -345,7 +345,7 @@ static long current_syscall_ret(struct pt_regs *regs)
static int
handle_signal(unsigned long sig, siginfo_t *info, struct k_sigaction *ka,
- sigset_t *oldset, struct pt_regs *regs)
+ sigset_t *oldset, struct pt_regs *regs)
{
int ret;
@@ -359,21 +359,21 @@ handle_signal(unsigned long sig, siginfo_t *info, struct k_sigaction *ka,
if (current_syscall(regs) >= 0) {
/* If so, check system call restarting.. */
switch (current_syscall_ret(regs)) {
- case -ERESTART_RESTARTBLOCK:
- case -ERESTARTNOHAND:
- regs->ax = -EINTR;
- break;
+ case -ERESTART_RESTARTBLOCK:
+ case -ERESTARTNOHAND:
+ regs->ax = -EINTR;
+ break;
- case -ERESTARTSYS:
- if (!(ka->sa.sa_flags & SA_RESTART)) {
- regs->ax = -EINTR;
- break;
- }
- /* fallthrough */
- case -ERESTARTNOINTR:
- regs->ax = regs->orig_ax;
- regs->ip -= 2;
+ case -ERESTARTSYS:
+ if (!(ka->sa.sa_flags & SA_RESTART)) {
+ regs->ax = -EINTR;
break;
+ }
+ /* fallthrough */
+ case -ERESTARTNOINTR:
+ regs->ax = regs->orig_ax;
+ regs->ip -= 2;
+ break;
}
}
@@ -420,10 +420,11 @@ static void do_signal(struct pt_regs *regs)
sigset_t *oldset;
/*
- * We want the common case to go fast, which
- * is why we may in certain cases get here from
- * kernel mode. Just return without doing anything
+ * We want the common case to go fast, which is why we may in certain
+ * cases get here from kernel mode. Just return without doing anything
* if so.
+ * X86_32: vm86 regs switched out by assembly code before reaching
+ * here, so testing against kernel CS suffices.
*/
if (!user_mode(regs))
return;
@@ -473,16 +474,18 @@ static void do_signal(struct pt_regs *regs)
}
}
- /* if there's no signal to deliver, we just put the saved sigmask
- back. */
+ /*
+ * If there's no signal to deliver, we just put the saved sigmask
+ * back.
+ */
if (test_thread_flag(TIF_RESTORE_SIGMASK)) {
clear_thread_flag(TIF_RESTORE_SIGMASK);
sigprocmask(SIG_SETMASK, &current->saved_sigmask, NULL);
}
}
-void
-do_notify_resume(struct pt_regs *regs, void *unused, __u32 thread_info_flags)
+void do_notify_resume(struct pt_regs *regs, void *unused,
+ __u32 thread_info_flags)
{
#ifdef DEBUG_SIG
printk("do_notify_resume flags:%x ip:%lx sp:%lx caller:%p pending:%x\n",
@@ -502,7 +505,7 @@ do_notify_resume(struct pt_regs *regs, void *unused, __u32 thread_info_flags)
#endif /* CONFIG_X86_MCE */
/* deal with pending signal delivery */
- if (thread_info_flags & (_TIF_SIGPENDING|_TIF_RESTORE_SIGMASK))
+ if (thread_info_flags & (_TIF_SIGPENDING | _TIF_RESTORE_SIGMASK))
do_signal(regs);
if (thread_info_flags & _TIF_HRTICK_RESCHED)