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Subject[PATCH 5/5] x86_32: signal: move signal number conversion to upper layer
From: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>

Bring signal number conversion in __setup_frame() and __setup_rt_frame()
up into the common part setup_frame().

Signed-off-by: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
---
arch/x86/kernel/signal_32.c | 31 ++++++++++++-------------------
1 files changed, 12 insertions(+), 19 deletions(-)

diff --git a/arch/x86/kernel/signal_32.c b/arch/x86/kernel/signal_32.c
index 48982f7..b668efc 100644
--- a/arch/x86/kernel/signal_32.c
+++ b/arch/x86/kernel/signal_32.c
@@ -344,7 +344,6 @@ __setup_frame(int sig, struct k_sigaction *ka, sigset_t *set,
struct sigframe __user *frame;
void __user *restorer;
int err = 0;
- int usig;
void __user *fpstate = NULL;

frame = get_sigframe(ka, regs, sizeof(*frame), &fpstate);
@@ -352,13 +351,7 @@ __setup_frame(int sig, struct k_sigaction *ka, sigset_t *set,
if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame)))
goto give_sigsegv;

- usig = current_thread_info()->exec_domain
- && current_thread_info()->exec_domain->signal_invmap
- && sig < 32
- ? current_thread_info()->exec_domain->signal_invmap[sig]
- : sig;
-
- err = __put_user(usig, &frame->sig);
+ err = __put_user(sig, &frame->sig);
if (err)
goto give_sigsegv;

@@ -422,7 +415,6 @@ static int __setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
struct rt_sigframe __user *frame;
void __user *restorer;
int err = 0;
- int usig;
void __user *fpstate = NULL;

frame = get_sigframe(ka, regs, sizeof(*frame), &fpstate);
@@ -430,13 +422,7 @@ static int __setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame)))
goto give_sigsegv;

- usig = current_thread_info()->exec_domain
- && current_thread_info()->exec_domain->signal_invmap
- && sig < 32
- ? current_thread_info()->exec_domain->signal_invmap[sig]
- : sig;
-
- err |= __put_user(usig, &frame->sig);
+ err |= __put_user(sig, &frame->sig);
err |= __put_user(&frame->info, &frame->pinfo);
err |= __put_user(&frame->uc, &frame->puc);
err |= copy_siginfo_to_user(&frame->info, info);
@@ -482,7 +468,7 @@ static int __setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
/* Set up registers for signal handler */
regs->sp = (unsigned long)frame;
regs->ip = (unsigned long)ka->sa.sa_handler;
- regs->ax = (unsigned long)usig;
+ regs->ax = (unsigned long)sig;
regs->dx = (unsigned long)&frame->info;
regs->cx = (unsigned long)&frame->uc;

@@ -506,12 +492,19 @@ setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
sigset_t *set, struct pt_regs *regs)
{
int ret;
+ int usig;
+
+ usig = current_thread_info()->exec_domain
+ && current_thread_info()->exec_domain->signal_invmap
+ && sig < 32
+ ? current_thread_info()->exec_domain->signal_invmap[sig]
+ : sig;

/* Set up the stack frame */
if (ka->sa.sa_flags & SA_SIGINFO)
- ret = __setup_rt_frame(sig, ka, info, set, regs);
+ ret = __setup_rt_frame(usig, ka, info, set, regs);
else
- ret = __setup_frame(sig, ka, set, regs);
+ ret = __setup_frame(usig, ka, set, regs);

return ret;
}
--
1.5.6


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