diff options
Diffstat (limited to 'sysdeps/unix/sysdep.h')
| -rw-r--r-- | sysdeps/unix/sysdep.h | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/sysdeps/unix/sysdep.h b/sysdeps/unix/sysdep.h new file mode 100644 index 0000000000..07c539b78a --- /dev/null +++ b/sysdeps/unix/sysdep.h @@ -0,0 +1,59 @@ +/* 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 |