diff options
author | Al Viro <viro@zeniv.linux.org.uk> | 2012-12-23 08:46:05 (GMT) |
---|---|---|
committer | Al Viro <viro@zeniv.linux.org.uk> | 2013-02-03 23:16:15 (GMT) |
commit | 7a879a94d90dc5c494875b54499ae321400358d8 (patch) | |
tree | 677856f295ab1b41239a383c688ea67850638512 /arch/sh/kernel | |
parent | 0aa0203fb43f04714004b2c4ad33b858e240555d (diff) | |
download | linux-fsl-qoriq-7a879a94d90dc5c494875b54499ae321400358d8.tar.xz |
sh: switch to generic sigaltstack
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'arch/sh/kernel')
-rw-r--r-- | arch/sh/kernel/signal_32.c | 20 | ||||
-rw-r--r-- | arch/sh/kernel/signal_64.c | 19 |
2 files changed, 4 insertions, 35 deletions
diff --git a/arch/sh/kernel/signal_32.c b/arch/sh/kernel/signal_32.c index 2f1f653..e540d07 100644 --- a/arch/sh/kernel/signal_32.c +++ b/arch/sh/kernel/signal_32.c @@ -89,17 +89,6 @@ sys_sigaction(int sig, const struct old_sigaction __user *act, return ret; } -asmlinkage int -sys_sigaltstack(const stack_t __user *uss, stack_t __user *uoss, - unsigned long r6, unsigned long r7, - struct pt_regs __regs) -{ - struct pt_regs *regs = RELOC_HIDE(&__regs, 0); - - return do_sigaltstack(uss, uoss, regs->regs[15]); -} - - /* * Do a signal return; undo the signal stack. */ @@ -257,8 +246,7 @@ asmlinkage int sys_rt_sigreturn(unsigned long r4, unsigned long r5, if (restore_sigcontext(regs, &frame->uc.uc_mcontext, &r0)) goto badframe; - if (do_sigaltstack(&frame->uc.uc_stack, NULL, - regs->regs[15]) == -EFAULT) + if (restore_altstack(&frame->uc.uc_stack)) goto badframe; return r0; @@ -423,11 +411,7 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info, /* Create the ucontext. */ err |= __put_user(0, &frame->uc.uc_flags); err |= __put_user(NULL, &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->regs[15]), - &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->regs[15]); err |= setup_sigcontext(&frame->uc.uc_mcontext, regs, set->sig[0]); err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set)); diff --git a/arch/sh/kernel/signal_64.c b/arch/sh/kernel/signal_64.c index d867cd9..0fba66e 100644 --- a/arch/sh/kernel/signal_64.c +++ b/arch/sh/kernel/signal_64.c @@ -170,15 +170,6 @@ sys_sigaction(int sig, const struct old_sigaction __user *act, return ret; } -asmlinkage int -sys_sigaltstack(const stack_t __user *uss, stack_t __user *uoss, - unsigned long r4, unsigned long r5, unsigned long r6, - unsigned long r7, - struct pt_regs * regs) -{ - return do_sigaltstack(uss, uoss, REF_REG_SP); -} - /* * Do a signal return; undo the signal stack. */ @@ -364,9 +355,7 @@ asmlinkage int sys_rt_sigreturn(unsigned long r2, unsigned long r3, goto badframe; regs->pc -= 4; - /* It is more difficult to avoid calling this function than to - call it and ignore errors. */ - if (do_sigaltstack(&frame->uc.uc_stack, NULL, REF_REG_SP) == -EFAULT) + if (restore_altstack(&frame->uc.uc_stack)) goto badframe; return (int) ret; @@ -560,11 +549,7 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info, /* Create the ucontext. */ 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->regs[REG_SP]), - &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->regs[REG_SP]); err |= setup_sigcontext(&frame->uc.uc_mcontext, regs, set->sig[0]); err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set)); |