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| author | Al Viro <viro@zeniv.linux.org.uk> | 2012-12-14 21:25:43 +0100 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2012-12-20 00:07:42 +0100 |
| commit | 50ececcfa7d1acee085b2c518cad495062db6379 (patch) | |
| tree | 3e947b8208e40f34a867be42d0a3908f53844a01 /arch/alpha | |
| parent | new helpers: __save_altstack/__compat_save_altstack, switch x86 and um to those (diff) | |
| download | linux-50ececcfa7d1acee085b2c518cad495062db6379.tar.xz linux-50ececcfa7d1acee085b2c518cad495062db6379.zip | |
alpha: switch to generic sigaltstack
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'arch/alpha')
| -rw-r--r-- | arch/alpha/Kconfig | 1 | ||||
| -rw-r--r-- | arch/alpha/kernel/signal.c | 10 |
2 files changed, 2 insertions, 9 deletions
diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig index 7e3710c0cce5..9d5904cc7712 100644 --- a/arch/alpha/Kconfig +++ b/arch/alpha/Kconfig @@ -22,6 +22,7 @@ config ALPHA select GENERIC_STRNLEN_USER select HAVE_MOD_ARCH_SPECIFIC select MODULES_USE_ELF_RELA + select GENERIC_SIGALTSTACK help The Alpha is a 64-bit general-purpose processor designed and marketed by the Digital Equipment Corporation of blessed memory, diff --git a/arch/alpha/kernel/signal.c b/arch/alpha/kernel/signal.c index 336393c9c11f..02d02c047f17 100644 --- a/arch/alpha/kernel/signal.c +++ b/arch/alpha/kernel/signal.c @@ -122,12 +122,6 @@ SYSCALL_DEFINE1(sigsuspend, old_sigset_t, mask) return sigsuspend(&blocked); } -asmlinkage int -sys_sigaltstack(const stack_t __user *uss, stack_t __user *uoss) -{ - return do_sigaltstack(uss, uoss, rdusp()); -} - /* * Do a signal return; undo the signal stack. */ @@ -418,9 +412,7 @@ setup_rt_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(set->sig[0], &frame->uc.uc_osf_sigmask); - err |= __put_user(current->sas_ss_sp, &frame->uc.uc_stack.ss_sp); - err |= __put_user(sas_ss_flags(oldsp), &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, oldsp); err |= setup_sigcontext(&frame->uc.uc_mcontext, regs, set->sig[0], oldsp); err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set)); |