diff options
Diffstat (limited to 'sysdeps/unix/sysdep.h')
| -rw-r--r-- | sysdeps/unix/sysdep.h | 38 |
1 files changed, 29 insertions, 9 deletions
diff --git a/sysdeps/unix/sysdep.h b/sysdeps/unix/sysdep.h index 52dad582ce..94a2ce0e37 100644 --- a/sysdeps/unix/sysdep.h +++ b/sysdeps/unix/sysdep.h @@ -1,4 +1,4 @@ -/* Copyright (C) 1991-2015 Free Software Foundation, Inc. +/* Copyright (C) 1991-2016 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -24,22 +24,42 @@ #define SYSCALL__(name, args) PSEUDO (__##name, name, args) #define SYSCALL(name, args) PSEUDO (name, name, args) -/* Cancellation macros. */ -#define __SYSCALL_NARGS_X(a,b,c,d,e,f,g,n,...) n +#define __SYSCALL0(name) \ + INLINE_SYSCALL (name, 0) +#define __SYSCALL1(name, a1) \ + INLINE_SYSCALL (name, 1, a1) +#define __SYSCALL2(name, a1, a2) \ + INLINE_SYSCALL (name, 2, a1, a2) +#define __SYSCALL3(name, a1, a2, a3) \ + INLINE_SYSCALL (name, 3, a1, a2, a3) +#define __SYSCALL4(name, a1, a2, a3, a4) \ + INLINE_SYSCALL (name, 4, a1, a2, a3, a4) +#define __SYSCALL5(name, a1, a2, a3, a4, a5) \ + INLINE_SYSCALL (name, 5, a1, a2, a3, a4, a5) +#define __SYSCALL6(name, a1, a2, a3, a4, a5, a6) \ + INLINE_SYSCALL (name, 6, a1, a2, a3, a4, a5, a6) +#define __SYSCALL7(name, a1, a2, a3, a4, a5, a6, a7) \ + INLINE_SYSCALL (name, 7, a1, a2, a3, a4, a5, a6, a7) + +#define __SYSCALL_NARGS_X(a,b,c,d,e,f,g,h,n,...) n #define __SYSCALL_NARGS(...) \ - __SYSCALL_NARGS_X (__VA_ARGS__, 7, 6, 5, 4, 3, 2, 1, 0,) + __SYSCALL_NARGS_X (__VA_ARGS__,7,6,5,4,3,2,1,0,) +#define __SYSCALL_CONCAT_X(a,b) a##b +#define __SYSCALL_CONCAT(a,b) __SYSCALL_CONCAT_X (a, b) +#define __SYSCALL_DISP(b,...) \ + __SYSCALL_CONCAT (b,__SYSCALL_NARGS(__VA_ARGS__))(__VA_ARGS__) + +#define __SYSCALL_CALL(...) __SYSCALL_DISP (__SYSCALL, __VA_ARGS__) -#define SYSCALL_CANCEL(name, ...) \ +#define SYSCALL_CANCEL(...) \ ({ \ long int sc_ret; \ if (SINGLE_THREAD_P) \ - sc_ret = INLINE_SYSCALL (name, __SYSCALL_NARGS(__VA_ARGS__), \ - __VA_ARGS__); \ + sc_ret = __SYSCALL_CALL (__VA_ARGS__); \ else \ { \ int sc_cancel_oldtype = LIBC_CANCEL_ASYNC (); \ - sc_ret = INLINE_SYSCALL (name, __SYSCALL_NARGS (__VA_ARGS__), \ - __VA_ARGS__); \ + sc_ret = __SYSCALL_CALL (__VA_ARGS__); \ LIBC_CANCEL_RESET (sc_cancel_oldtype); \ } \ sc_ret; \ |