diff options
Diffstat (limited to 'libc/sysdeps/linux/frv/bits')
| -rw-r--r-- | libc/sysdeps/linux/frv/bits/syscalls.h | 20 |
1 files changed, 17 insertions, 3 deletions
diff --git a/libc/sysdeps/linux/frv/bits/syscalls.h b/libc/sysdeps/linux/frv/bits/syscalls.h index 552f7e7c4..44dba866b 100644 --- a/libc/sysdeps/linux/frv/bits/syscalls.h +++ b/libc/sysdeps/linux/frv/bits/syscalls.h @@ -19,15 +19,29 @@ #ifndef __ASSEMBLER__ /* user-visible error numbers are in the range -1 - -4095: see <asm-frv/errno.h> */ -#define __syscall_return(type, res) \ +#ifdef _LIBC +# define __syscall_return(type, res) \ do { \ unsigned long __sr2 = (res); \ - if ((unsigned long)(__sr2) >= (unsigned long)(-4095)) { \ - __set_errno (-(__sr2)); \ + if (__builtin_expect ((unsigned long)(__sr2) \ + >= (unsigned long)(-4095), 0)) { \ + extern int __syscall_error (int); \ + return (type) __syscall_error (__sr2); \ + } \ + return (type) (__sr2); \ +} while (0) +#else +# define __syscall_return(type, res) \ +do { \ + unsigned long __sr2 = (res); \ + if (__builtin_expect ((unsigned long)(__sr2) \ + >= (unsigned long)(-4095), 0)) { \ + __set_errno (-__sr2); \ __sr2 = -1; \ } \ return (type) (__sr2); \ } while (0) +#endif /* XXX - _foo needs to be __foo, while __NR_bar could be _NR_bar. */ |