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authorAl Viro <viro@zeniv.linux.org.uk>2012-12-23 03:54:43 -0500
committerAl Viro <viro@zeniv.linux.org.uk>2013-02-03 18:16:27 -0500
commit0430f2f2764f9db5ee5200c3d24d1eac8a797e28 (patch)
treedc6add1a6517a1fa50b71d7d142ebc65ddafde38 /arch/xtensa/kernel/signal.c
parent0aa0203fb43f04714004b2c4ad33b858e240555d (diff)
downloadop-kernel-dev-0430f2f2764f9db5ee5200c3d24d1eac8a797e28.zip
op-kernel-dev-0430f2f2764f9db5ee5200c3d24d1eac8a797e28.tar.gz
xtensa: switch to generic sigaltstack
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'arch/xtensa/kernel/signal.c')
-rw-r--r--arch/xtensa/kernel/signal.c18
1 files changed, 2 insertions, 16 deletions
diff --git a/arch/xtensa/kernel/signal.c b/arch/xtensa/kernel/signal.c
index de34d6b..d7590dd 100644
--- a/arch/xtensa/kernel/signal.c
+++ b/arch/xtensa/kernel/signal.c
@@ -265,7 +265,7 @@ asmlinkage long xtensa_rt_sigreturn(long a0, long a1, long a2, long a3,
ret = regs->areg[2];
- if (do_sigaltstack(&frame->uc.uc_stack, NULL, regs->areg[1]) == -EFAULT)
+ if (restore_altstack(&frame->uc.uc_stack))
goto badframe;
return ret;
@@ -368,11 +368,7 @@ static int setup_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
err |= __put_user(0, &frame->uc.uc_flags);
err |= __put_user(0, &frame->uc.uc_link);
- err |= __put_user((void *)current->sas_ss_sp,
- &frame->uc.uc_stack.ss_sp);
- err |= __put_user(sas_ss_flags(regs->areg[1]),
- &frame->uc.uc_stack.ss_flags);
- err |= __put_user(current->sas_ss_size, &frame->uc.uc_stack.ss_size);
+ err |= __save_altstack(&frame->uc.uc_stack, regs->areg[1]);
err |= setup_sigcontext(frame, regs);
err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set));
@@ -424,16 +420,6 @@ give_sigsegv:
return -EFAULT;
}
-asmlinkage long xtensa_sigaltstack(const stack_t __user *uss,
- stack_t __user *uoss,
- long a2, long a3, long a4, long a5,
- struct pt_regs *regs)
-{
- return do_sigaltstack(uss, uoss, regs->areg[1]);
-}
-
-
-
/*
* Note that 'init' is a special process: it doesn't get signals it doesn't
* want to handle. Thus you cannot kill init even with a SIGKILL even by
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