diff options
Diffstat (limited to 'libc/sysdeps/linux/common/bits/syscalls-common.h')
| -rw-r--r-- | libc/sysdeps/linux/common/bits/syscalls-common.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/common/bits/syscalls-common.h b/libc/sysdeps/linux/common/bits/syscalls-common.h index 78bbf6c22..5e4e350c5 100644 --- a/libc/sysdeps/linux/common/bits/syscalls-common.h +++ b/libc/sysdeps/linux/common/bits/syscalls-common.h @@ -33,6 +33,9 @@ #ifndef INLINE_SYSCALL # define INLINE_SYSCALL(name, nr, args...) INLINE_SYSCALL_NCS(__NR_##name, nr, args) #endif +#ifndef INLINE_SYSCALL_NOERR +# define INLINE_SYSCALL_NOERR(name, nr, args...) INLINE_SYSCALL_NOERR_NCS(__NR_##name, nr, args) +#endif /* Just like INLINE_SYSCALL(), but take a non-constant syscall (NCS) argument */ #ifndef INLINE_SYSCALL_NCS @@ -47,6 +50,14 @@ __res; \ }) #endif +#ifndef INLINE_SYSCALL_NOERR_NCS +# define INLINE_SYSCALL_NOERR_NCS(name, nr, args...) \ +({ \ + INTERNAL_SYSCALL_DECL(__err); \ + long __res = INTERNAL_SYSCALL_NCS(name, __err, nr, args); \ + __res; \ +}) +#endif /* No point in forcing people to implement both when they only need one */ #ifndef INTERNAL_SYSCALL @@ -80,8 +91,14 @@ type name(C_DECL_ARGS_##nargs(args)) { \ return (type)INLINE_SYSCALL(name, nargs, C_ARGS_##nargs(args)); \ } +#define SYSCALL_NOERR_FUNC(nargs, type, name, args...) \ +type name(C_DECL_ARGS_##nargs(args)) { \ + return (type)INLINE_SYSCALL_NOERR(name, nargs, C_ARGS_##nargs(args)); \ +} + #define _syscall0(args...) SYSCALL_FUNC(0, args) #define _syscall1(args...) SYSCALL_FUNC(1, args) +#define _syscall_noerr1(args...) SYSCALL_NOERR_FUNC(1, args) #define _syscall2(args...) SYSCALL_FUNC(2, args) #define _syscall3(args...) SYSCALL_FUNC(3, args) #define _syscall4(args...) SYSCALL_FUNC(4, args) |