1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
|
/* Copyright (C) 1991-2015 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
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#include <sysdeps/generic/sysdep.h>
#include <sys/syscall.h>
#define HAVE_SYSCALLS
/* Note that using a `PASTE' macro loses. */
#define SYSCALL__(name, args) PSEUDO (__##name, name, args)
#define SYSCALL(name, args) PSEUDO (name, name, args)
/* Machine-dependent sysdep.h files are expected to define the macro
PSEUDO (function_name, syscall_name) to emit assembly code to define the
C-callable function FUNCTION_NAME to do system call SYSCALL_NAME.
r0 and r1 are the system call outputs. MOVE(x, y) should be defined as
an instruction such that "MOVE(r1, r0)" works. ret should be defined
as the return instruction. */
#define SYS_ify(syscall_name) SYS_##syscall_name
/* Terminate a system call named SYM. This is used on some platforms
to generate correct debugging information. */
#ifndef PSEUDO_END
#define PSEUDO_END(sym)
#endif
#ifndef PSEUDO_END_NOERRNO
#define PSEUDO_END_NOERRNO(sym) PSEUDO_END(sym)
#endif
#ifndef PSEUDO_END_ERRVAL
#define PSEUDO_END_ERRVAL(sym) PSEUDO_END(sym)
#endif
/* Wrappers around system calls should normally inline the system call code.
But sometimes it is not possible or implemented and we use this code. */
#define INLINE_SYSCALL(name, nr, args...) __syscall_##name (args)
|