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initial import

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Roland McGrath
1995-02-18 01:27:10 +00:00
commit 28f540f45b
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59
sysdeps/unix/sysdep.h Normal file
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/* Copyright (C) 1991, 1992, 1993 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 <syscall.h>
#define HAVE_SYSCALLS
/* Note that using a `PASTE' macro loses. */
#ifdef __STDC__
#define SYSCALL__(name, args) PSEUDO (__##name, name, args)
#else
#define SYSCALL__(name, args) PSEUDO (__/**/name, name, args)
#endif
#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 a macro we can use to construct the asm name for a C symbol. */
#ifdef NO_UNDERSCORES
#define C_SYMBOL_NAME(name) name
#ifdef __STDC__
#define C_LABEL(name) name##:
#else
#define C_LABEL(name) name/**/:
#endif
#else
#ifdef __STDC__
#define C_SYMBOL_NAME(name) _##name
#define C_LABEL(name) _##name##:
#else
#define C_SYMBOL_NAME(name) _/**/name
#define C_LABEL(name) _/**/name/**/:
#endif
#endif
#ifdef __STDC__
#define SYS_ify(syscall_name) SYS_##syscall_name
#else
#define SYS_ify(syscall_name) SYS_/**/syscall_name
#endif