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OpenCloudOS-Kernel
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m32r: switch to generic sigaltstack 

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2012-12-23 02:55:20 -05:00
parent 0aa0203fb4
commit 1084f751d4
2 changed files with 3 additions and 14 deletions
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1
arch/m32r/Kconfig
View File

@ -15,6 +15,7 @@ config M32R
select GENERIC_ATOMIC64 select GENERIC_ATOMIC64
select ARCH_USES_GETTIMEOFFSET select ARCH_USES_GETTIMEOFFSET
select MODULES_USE_ELF_RELA select MODULES_USE_ELF_RELA
select GENERIC_SIGALTSTACK
config SBUS config SBUS
bool bool

16
arch/m32r/kernel/signal.c
View File

@ -27,15 +27,6 @@
#define DEBUG_SIG 0 #define DEBUG_SIG 0
asmlinkage int
sys_sigaltstack(const stack_t __user *uss, stack_t __user *uoss,
unsigned long r2, unsigned long r3, unsigned long r4,
unsigned long r5, unsigned long r6, struct pt_regs *regs)
{
return do_sigaltstack(uss, uoss, regs->spu);
}
/* /*
* Do a signal return; undo the signal stack. * Do a signal return; undo the signal stack.
*/ */
@ -113,7 +104,7 @@ sys_rt_sigreturn(unsigned long r0, unsigned long r1,
if (restore_sigcontext(regs, &frame->uc.uc_mcontext, &result)) if (restore_sigcontext(regs, &frame->uc.uc_mcontext, &result))
goto badframe; goto badframe;
if (do_sigaltstack(&frame->uc.uc_stack, NULL, regs->spu) == -EFAULT) if (restore_altstack(&frame->uc.uc_stack))
goto badframe; goto badframe;
return result; return result;
@ -213,10 +204,7 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
/* Create the ucontext. */ /* Create the ucontext. */
err |= __put_user(0, &frame->uc.uc_flags); err |= __put_user(0, &frame->uc.uc_flags);
err |= __put_user(0, &frame->uc.uc_link); err |= __put_user(0, &frame->uc.uc_link);
err |= __put_user(current->sas_ss_sp, &frame->uc.uc_stack.ss_sp); err |= __save_altstack(&frame->uc.uc_stack, regs->spu);
err |= __put_user(sas_ss_flags(regs->spu),
&frame->uc.uc_stack.ss_flags);
err |= __put_user(current->sas_ss_size, &frame->uc.uc_stack.ss_size);
err |= setup_sigcontext(&frame->uc.uc_mcontext, regs, set->sig[0]); err |= setup_sigcontext(&frame->uc.uc_mcontext, regs, set->sig[0]);
err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set)); err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set));
if (err) if (err)