From cb3504e8fa84870aabcf51c67e29675817e30836 Mon Sep 17 00:00:00 2001
From: Russell King <rmk@dyn-67.arm.linux.org.uk>
Date: Thu, 15 Jun 2006 20:18:25 +0100
Subject: [ARM] Re-use sigframe within rt_sigframe
sigframe is now a contained subset of rt_sigframe, so we can start
to re-use code which accesses sigframe data for both rt and non-rt
signals.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
arch/arm/kernel/signal.c | 24 +++++++++++-------------
1 file changed, 11 insertions(+), 13 deletions(-)
diff --git a/arch/arm/kernel/signal.c b/arch/arm/kernel/signal.c
index 9f1e1768e4..652bb1a33c 100644
--- a/arch/arm/kernel/signal.c
+++ b/arch/arm/kernel/signal.c
@@ -200,9 +200,7 @@ struct sigframe {
struct rt_sigframe {
struct siginfo info;
- struct ucontext uc;
- unsigned long retcode[2];
- struct aux_sigframe aux __attribute__((aligned(8)));
+ struct sigframe sig;
};
static int
@@ -308,7 +306,7 @@ asmlinkage int sys_rt_sigreturn(struct pt_regs *regs)
if (!access_ok(VERIFY_READ, frame, sizeof (*frame)))
goto badframe;
- if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set)))
+ if (__copy_from_user(&set, &frame->sig.uc.uc_sigmask, sizeof(set)))
goto badframe;
sigdelsetmask(&set, ~_BLOCKABLE);
@@ -317,10 +315,10 @@ asmlinkage int sys_rt_sigreturn(struct pt_regs *regs)
recalc_sigpending();
spin_unlock_irq(¤t->sighand->siglock);
- if (restore_sigcontext(regs, &frame->uc.uc_mcontext, &frame->aux))
+ if (restore_sigcontext(regs, &frame->sig.uc.uc_mcontext, &frame->sig.aux))
goto badframe;
- if (do_sigaltstack(&frame->uc.uc_stack, NULL, regs->ARM_sp) == -EFAULT)
+ if (do_sigaltstack(&frame->sig.uc.uc_stack, NULL, regs->ARM_sp) == -EFAULT)
goto badframe;
/* Send SIGTRAP if we're single-stepping */
@@ -503,21 +501,21 @@ setup_rt_frame(int usig, struct k_sigaction *ka, siginfo_t *info,
err |= copy_siginfo_to_user(&frame->info, info);
- __put_user_error(0, &frame->uc.uc_flags, err);
- __put_user_error(NULL, &frame->uc.uc_link, err);
+ __put_user_error(0, &frame->sig.uc.uc_flags, err);
+ __put_user_error(NULL, &frame->sig.uc.uc_link, err);
memset(&stack, 0, sizeof(stack));
stack.ss_sp = (void __user *)current->sas_ss_sp;
stack.ss_flags = sas_ss_flags(regs->ARM_sp);
stack.ss_size = current->sas_ss_size;
- err |= __copy_to_user(&frame->uc.uc_stack, &stack, sizeof(stack));
+ err |= __copy_to_user(&frame->sig.uc.uc_stack, &stack, sizeof(stack));
- err |= setup_sigcontext(&frame->uc.uc_mcontext, &frame->aux,
+ err |= setup_sigcontext(&frame->sig.uc.uc_mcontext, &frame->sig.aux,
regs, set->sig[0]);
- err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set));
+ err |= __copy_to_user(&frame->sig.uc.uc_sigmask, set, sizeof(*set));
if (err == 0)
- err = setup_return(regs, ka, frame->retcode, frame, usig);
+ err = setup_return(regs, ka, frame->sig.retcode, frame, usig);
if (err == 0) {
/*
@@ -526,7 +524,7 @@ setup_rt_frame(int usig, struct k_sigaction *ka, siginfo_t *info,
* -- Peter Maydell <pmaydell@chiark.greenend.org.uk> 2000-12-06
*/
regs->ARM_r1 = (unsigned long)&frame->info;
- regs->ARM_r2 = (unsigned long)&frame->uc;
+ regs->ARM_r2 = (unsigned long)&frame->sig.uc;
}
return err;
--
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