diff options
| author | Al Viro <viro@zeniv.linux.org.uk> | 2012-12-23 03:19:49 -0500 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2013-02-03 18:16:05 -0500 |
| commit | faec5a96a024c1256b289253f3609b4a5f6f3576 (patch) | |
| tree | cb05b67ef299935638713a3ccdcbe31d65bfa550 /arch/openrisc | |
| parent | 0aa0203fb43f04714004b2c4ad33b858e240555d (diff) | |
openrisc: switch to generic sigaltstack
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'arch/openrisc')
| -rw-r--r-- | arch/openrisc/Kconfig | 1 | ||||
| -rw-r--r-- | arch/openrisc/kernel/entry.S | 4 | ||||
| -rw-r--r-- | arch/openrisc/kernel/signal.c | 15 |
3 files changed, 3 insertions, 17 deletions
diff --git a/arch/openrisc/Kconfig b/arch/openrisc/Kconfig index 0ac66f67521..d3632eb98a1 100644 --- a/arch/openrisc/Kconfig +++ b/arch/openrisc/Kconfig @@ -22,6 +22,7 @@ config OPENRISC select GENERIC_STRNCPY_FROM_USER select GENERIC_STRNLEN_USER select MODULES_USE_ELF_RELA + select GENERIC_SIGALTSTACK config MMU def_bool y diff --git a/arch/openrisc/kernel/entry.S b/arch/openrisc/kernel/entry.S index 5e5b30601bb..54afd0a129f 100644 --- a/arch/openrisc/kernel/entry.S +++ b/arch/openrisc/kernel/entry.S @@ -1083,10 +1083,6 @@ ENTRY(__sys_fork) l.j _fork_save_extra_regs_and_call l.addi r3,r1,0 -ENTRY(sys_sigaltstack) - l.j _sys_sigaltstack - l.addi r5,r1,0 - ENTRY(sys_rt_sigreturn) l.j _sys_rt_sigreturn l.addi r3,r1,0 diff --git a/arch/openrisc/kernel/signal.c b/arch/openrisc/kernel/signal.c index ddedc8a7786..ae167f7e081 100644 --- a/arch/openrisc/kernel/signal.c +++ b/arch/openrisc/kernel/signal.c @@ -33,12 +33,6 @@ #define DEBUG_SIG 0 -asmlinkage long -_sys_sigaltstack(const stack_t *uss, stack_t *uoss, struct pt_regs *regs) -{ - return do_sigaltstack(uss, uoss, regs->sp); -} - struct rt_sigframe { struct siginfo *pinfo; void *puc; @@ -103,9 +97,7 @@ asmlinkage long _sys_rt_sigreturn(struct pt_regs *regs) if (restore_sigcontext(regs, &frame->uc.uc_mcontext)) goto badframe; - /* It is more difficult to avoid calling this function than to - call it and ignore errors. */ - if (do_sigaltstack(&frame->uc.uc_stack, NULL, regs->sp) == -EFAULT) + if (restore_altstack(&frame->uc.uc_stack)) goto badframe; return regs->gpr[11]; @@ -205,10 +197,7 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info, err |= __clear_user(&frame->uc, offsetof(struct ucontext, uc_mcontext)); 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->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->sp); err |= setup_sigcontext(&frame->uc.uc_mcontext, regs, set->sig[0]); err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set)); |