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authorAl Viro <viro@zeniv.linux.org.uk>2012-12-23 02:13:57 -0500
committerAl Viro <viro@zeniv.linux.org.uk>2013-02-03 18:15:54 -0500
commitfe76141671c3025cd0da7cfafb6d8945bbe0735b (patch)
tree7e4cdec76b7aca412a8ab5ec9e260585759ced79 /arch/frv
parent0aa0203fb43f04714004b2c4ad33b858e240555d (diff)
downloadlinux-fe76141671c3025cd0da7cfafb6d8945bbe0735b.tar.gz
frv: switch to generic sigaltstack
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'arch/frv')
-rw-r--r--arch/frv/Kconfig1
-rw-r--r--arch/frv/kernel/signal.c13
2 files changed, 3 insertions, 11 deletions
diff --git a/arch/frv/Kconfig b/arch/frv/Kconfig
index 9d262645f66..8aaf1a17427 100644
--- a/arch/frv/Kconfig
+++ b/arch/frv/Kconfig
@@ -12,6 +12,7 @@ config FRV
select ARCH_HAVE_NMI_SAFE_CMPXCHG
select GENERIC_CPU_DEVICES
select ARCH_WANT_IPC_PARSE_VERSION
+ select GENERIC_SIGALTSTACK
config ZONE_DMA
bool
diff --git a/arch/frv/kernel/signal.c b/arch/frv/kernel/signal.c
index 535810a3217..445156d2d30 100644
--- a/arch/frv/kernel/signal.c
+++ b/arch/frv/kernel/signal.c
@@ -74,13 +74,6 @@ asmlinkage int sys_sigaction(int sig,
return ret;
}
-asmlinkage
-int sys_sigaltstack(const stack_t __user *uss, stack_t __user *uoss)
-{
- return do_sigaltstack(uss, uoss, __frame->sp);
-}
-
-
/*
* Do a signal return; undo the signal stack.
*/
@@ -173,7 +166,7 @@ asmlinkage int sys_rt_sigreturn(void)
if (restore_sigcontext(&frame->uc.uc_mcontext, &gr8))
goto badframe;
- if (do_sigaltstack(&frame->uc.uc_stack, NULL, __frame->sp) == -EFAULT)
+ if (restore_altstack(&frame->uc.uc_stack))
goto badframe;
return gr8;
@@ -345,9 +338,7 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
/* Create the ucontext. */
if (__put_user(0, &frame->uc.uc_flags) ||
__put_user(NULL, &frame->uc.uc_link) ||
- __put_user((void __user *)current->sas_ss_sp, &frame->uc.uc_stack.ss_sp) ||
- __put_user(sas_ss_flags(__frame->sp), &frame->uc.uc_stack.ss_flags) ||
- __put_user(current->sas_ss_size, &frame->uc.uc_stack.ss_size))
+ __save_altstack(&frame->uc.uc_stack, __frame->sp))
goto give_sigsegv;
if (setup_sigcontext(&frame->uc.uc_mcontext, set->sig[0]))