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/* Copyright (C) 1991, 1992 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 Library General Public License as
published by the Free Software Foundation; either version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
Cambridge, MA 02139, USA. */
#include <sys/syscall.h>
/* Not that using a `PASTE' macro loses. */
#ifdef __STDC__
#ifdef __ELF__
#define SYSCALL_WEAK_ALIAS(alias,orig) \
.weak alias; \
alias=__libc_##orig
/*
#ifdef _POSIX_THREADS
*/
#if 1
#ifdef PTHREAD_KERNEL
/* Use the regular ELF conventions about underscores, and provide the
weak symbol, as required */
#define SYSCALL__POST(name, args) \
.weak machdep_sys_##name; \
machdep_sys_##name = __machdep_sys_##name; \
.type __machdep_sys_##name,@function; \
.type machdep_sys_##name,@function; \
.L__machdep_sys_##name##end: .size __machdep_sys_##name,.L__machdep_sys_##name##end - __machdep_sys_##name
#define SYSCALL__(name,args) PSEUDO (__machdep_sys_##name, name, args) \
SYSCALL__POST(name,args)
#define SYSCALLPOST(name,args) \
.weak machdep_sys_##name; \
machdep_sys_##name = __machdep_sys_##name; \
.type __machdep_sys_##name,@function; \
.type machdep_sys_##name,@function; \
.L__machdep_sys_##name##end: .size __machdep_sys_##name,.L__machdep_sys_##name##end - __machdep_sys_##name
#define SYSCALL(name,args) PSEUDO (__machdep_sys_##name, name, args) \
SYSCALLPOST(name,args)
#else /* PTHREAD_KERNEL */
/* Use the regular ELF conventions about underscores, and provide the
weak symbol, as required */
#define SYSCALL__POST(name,args) \
.weak __##name; \
.weak name; \
__##name = __libc_##name; \
name = __libc_##name; \
.type __libc_##name,@function; \
.type name,@function; \
.type __##name,@function; \
.L__libc_##name##end: .size __libc_##name,.L__libc_##name##end - __libc_##name
#define SYSCALL__(name,args) PSEUDO (__libc_##name, name, args) \
SYSCALL__POST(name,args)
#define SYSCALLPOST(name,args) \
.weak name; \
name = __libc_##name; \
.type __libc_##name,@function; \
.type name,@function; \
.L__libc_##name##end: .size __libc_##name,.L__libc_##name##end - __libc_##name
#define SYSCALL(name,args) PSEUDO (__libc_##name, name, args) \
SYSCALLPOST(name,args)
#endif /* PTHREAD_KERNEL */
#else /* _POSIX_THREADS */
/* Use the regular ELF conventions about underscores, and provide the
weak symbol, as required */
#define SYSCALL__POST(name,args) \
.weak name; \
__##name = __libc_##name; \
name = __libc_##name; \
.type __libc_##name,@function; \
.type name,@function; \
.type __##name,@function; \
.L__libc_##name##end: .size __libc_##name,.L__libc_##name##end - __libc_##name
#define SYSCALL__(name,args) PSEUDO (__libc_##name, name, args) \
SYSCALL__POST(name,args)
#define SYSCALLPOST(name,args) \
name = __libc_##name; \
.type __libc_##name,@function; \
.type name,@function; \
.L__libc_##name##end: .size __libc_##name,.L__libc_##name##end - __libc_##name
#define SYSCALL(name,args) PSEUDO (__libc_##name, name, args) \
SYSCALL__POST(name,args)
#endif /* _POSIX_THREADS */
#else /* __ELF__ */
#define SYSCALL_WEAK_ALIAS(alias,orig)
/* Regular a.out definition */
#define SYSCALL__(name,args) PSEUDO (__##name, name, args)
#define SYSCALL(name,args) PSEUDO (name, name, args)
#endif /* __ELF__ */
#else /* __STDC__ */
#define SYSCALL__(name,args) PSEUDO (__/**/name, name, args)
#define SYSCALL(name,args) PSEUDO (name, name, args)
#endif /* __STDC__ */
/* 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. movl should be defined as
an instruction such that "movl r1, r0" works. ret should be defined
as the return instruction. */
#if !defined(HAVE_GNU_LD) && !defined (__ELF__)
#define ___errno _errno
#endif
#define HAVE_SYSCALLS
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