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Recognize 'E' in first position of the parameter description to denote no error check...
[thirdparty/glibc.git] / sysdeps / unix / sysdep.h
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0dee6738 1/* Copyright (C) 1991, 92, 93, 96, 98 Free Software Foundation, Inc.
b5791037 2 This file is part of the GNU C Library.
28f540f4 3
b5791037 4 The GNU C Library is free software; you can redistribute it and/or
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5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
28f540f4 8
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9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
41bdb6e2 12 Lesser General Public License for more details.
28f540f4 13
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14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, write to the Free
16 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
17 02111-1307 USA. */
28f540f4 18
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19#include <sysdeps/generic/sysdep.h>
20
df4ef2ab 21#include <sys/syscall.h>
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22#define HAVE_SYSCALLS
23
24/* Note that using a `PASTE' macro loses. */
25#ifdef __STDC__
26#define SYSCALL__(name, args) PSEUDO (__##name, name, args)
27#else
28#define SYSCALL__(name, args) PSEUDO (__/**/name, name, args)
29#endif
30#define SYSCALL(name, args) PSEUDO (name, name, args)
31
32/* Machine-dependent sysdep.h files are expected to define the macro
33 PSEUDO (function_name, syscall_name) to emit assembly code to define the
34 C-callable function FUNCTION_NAME to do system call SYSCALL_NAME.
35 r0 and r1 are the system call outputs. MOVE(x, y) should be defined as
36 an instruction such that "MOVE(r1, r0)" works. ret should be defined
37 as the return instruction. */
38
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39#ifdef __STDC__
40#define SYS_ify(syscall_name) SYS_##syscall_name
41#else
42#define SYS_ify(syscall_name) SYS_/**/syscall_name
43#endif
84724245 44
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45/* Terminate a system call named SYM. This is used on some platforms
46 to generate correct debugging information. */
b5791037 47#ifndef PSEUDO_END
a1470b6f 48#define PSEUDO_END(sym)
b5791037 49#endif
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50
51/* Wrappers around system calls should normally inline the system call code.
52 But sometimes it is not possible or implemented and we use this code. */
53#define INLINE_SYSCALL(name, nr, args...) __syscall_##name (args)