diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/arm/sigaction.c')
| -rw-r--r-- | sysdeps/unix/sysv/linux/arm/sigaction.c | 21 |
1 files changed, 5 insertions, 16 deletions
diff --git a/sysdeps/unix/sysv/linux/arm/sigaction.c b/sysdeps/unix/sysv/linux/arm/sigaction.c index 76399a2b7a..102d66595b 100644 --- a/sysdeps/unix/sysv/linux/arm/sigaction.c +++ b/sysdeps/unix/sysv/linux/arm/sigaction.c @@ -39,11 +39,14 @@ int __libc_missing_rt_sigs; #define SA_RESTORER 0x04000000 +extern void __default_sa_restorer(void); +extern void __default_rt_sa_restorer(void); + /* When RT signals are in use we need to use a different return stub. */ #ifdef __NR_rt_sigreturn #define choose_restorer(flags) \ - (flags & SA_SIGINFO) ? &&__default_rt_sa_restorer \ - : &&__default_sa_restorer + (flags & SA_SIGINFO) ? __default_rt_sa_restorer \ + : __default_sa_restorer #else #define choose_restorer(flags) \ &&__default_sa_restorer @@ -142,20 +145,6 @@ __sigaction (sig, act, oact) #endif } return result; - - /* If no SA_RESTORER function was specified by the application we use - this one. This avoids the need for the kernel to synthesise a return - instruction on the stack, which would involve expensive cache flushes. */ - __default_sa_restorer: - asm volatile ("swi %0" : : "i" (__NR_sigreturn)); - -#ifdef __NR_rt_sigreturn - __default_rt_sa_restorer: - asm volatile ("swi %0" : : "i" (__NR_rt_sigreturn)); -#endif - - /* NOTREACHED */ - return -1; } weak_alias (__sigaction, sigaction) |