diff options
Diffstat (limited to 'libc/sysdeps/linux/arm/bits/syscalls.h')
| -rw-r--r-- | libc/sysdeps/linux/arm/bits/syscalls.h | 26 |
1 files changed, 18 insertions, 8 deletions
diff --git a/libc/sysdeps/linux/arm/bits/syscalls.h b/libc/sysdeps/linux/arm/bits/syscalls.h index 92bba7da3..6b747d91b 100644 --- a/libc/sysdeps/linux/arm/bits/syscalls.h +++ b/libc/sysdeps/linux/arm/bits/syscalls.h @@ -31,17 +31,22 @@ #include <errno.h> #define INLINE_SYSCALL_NCS(name, nr, args...) \ - ({ unsigned int _inline_sys_result = INTERNAL_SYSCALL_NCS (name, , nr, args); \ - if (__builtin_expect (INTERNAL_SYSCALL_ERROR_P (_inline_sys_result, ), 0)) \ +(__extension__ \ + ({ \ + unsigned int _inline_sys_result = INTERNAL_SYSCALL_NCS (name, , nr, args);\ + if (unlikely (INTERNAL_SYSCALL_ERROR_P (_inline_sys_result, ))) \ { \ - __set_errno (INTERNAL_SYSCALL_ERRNO (_inline_sys_result, )); \ - _inline_sys_result = (unsigned int) -1; \ + __set_errno (INTERNAL_SYSCALL_ERRNO (_inline_sys_result, )); \ + _inline_sys_result = (unsigned int) -1; \ } \ - (int) _inline_sys_result; }) + (int) _inline_sys_result; \ + }) \ +) #if !defined(__thumb__) #if defined(__ARM_EABI__) #define INTERNAL_SYSCALL_NCS(name, err, nr, args...) \ +(__extension__ \ ({unsigned int __internal_sys_result; \ { \ register int __a1 __asm__ ("r0"), _nr __asm__ ("r7"); \ @@ -53,10 +58,12 @@ : "memory"); \ __internal_sys_result = __a1; \ } \ - (int) __internal_sys_result; }) + (int) __internal_sys_result; }) \ +) #else /* defined(__ARM_EABI__) */ #define INTERNAL_SYSCALL_NCS(name, err, nr, args...) \ +(__extension__ \ ({ unsigned int __internal_sys_result; \ { \ register int __a1 __asm__ ("a1"); \ @@ -67,13 +74,15 @@ : "memory"); \ __internal_sys_result = __a1; \ } \ - (int) __internal_sys_result; }) + (int) __internal_sys_result; }) \ +) #endif #else /* !defined(__thumb__) */ /* We can't use push/pop inside the asm because that breaks unwinding (ie. thread cancellation). */ #define INTERNAL_SYSCALL_NCS(name, err, nr, args...) \ +(__extension__ \ ({ unsigned int __internal_sys_result; \ { \ int _sys_buf[2]; \ @@ -90,7 +99,8 @@ : "memory"); \ __internal_sys_result = __a1; \ } \ - (int) __internal_sys_result; }) + (int) __internal_sys_result; }) \ +) #endif /*!defined(__thumb__)*/ #define INTERNAL_SYSCALL_ERROR_P(val, err) \ |