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/* Copyright (C) 1992,97,98,99,2000,01,02 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, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#ifndef _LINUX_POWERPC_SYSDEP_H
#define _LINUX_POWERPC_SYSDEP_H 1
#include <sysdeps/unix/powerpc/sysdep.h>
/* For Linux we can use the system call table in the header file
/usr/include/asm/unistd.h
of the kernel. But these symbols do not follow the SYS_* syntax
so we have to redefine the `SYS_ify' macro here. */
#undef SYS_ify
#ifdef __STDC__
# define SYS_ify(syscall_name) __NR_##syscall_name
#else
# define SYS_ify(syscall_name) __NR_/**/syscall_name
#endif
#ifndef __ASSEMBLER__
# include <errno.h>
# undef INLINE_SYSCALL
# define INLINE_SYSCALL(name, nr, args...) \
({ \
long ret, err; \
LOADARGS_##nr(name, args); \
__asm __volatile ("sc\n\t" \
"mfcr %1\n\t" \
: "=r" (r3), "=r" (err) \
: ASM_INPUT_##nr \
: "cc", "memory"); \
ret = r3; \
if (err & 1 << 28) \
{ \
__set_errno (ret); \
ret = -1L; \
} \
ret; \
})
# define LOADARGS_0(name) \
register long r0 __asm__ ("r0") = __NR_##name; \
register long r3 __asm__ ("r3")
# define LOADARGS_1(name, arg1) \
LOADARGS_0(name) = (long) (arg1)
# define LOADARGS_2(name, arg1, arg2) \
LOADARGS_1(name, arg1); \
register long r4 __asm__ ("r4") = (long) (arg2)
# define LOADARGS_3(name, arg1, arg2, arg3) \
LOADARGS_2(name, arg1, arg2); \
register long r5 __asm__ ("r5") = (long) (arg3)
# define LOADARGS_4(name, arg1, arg2, arg3, arg4) \
LOADARGS_3(name, arg1, arg2, arg3); \
register long r6 __asm__ ("r6") = (long) (arg4)
# define LOADARGS_5(name, arg1, arg2, arg3, arg4, arg5) \
LOADARGS_4(name, arg1, arg2, arg3, arg4); \
register long r7 __asm__ ("r7") = (long) (arg5)
# define LOADARGS_6(name, arg1, arg2, arg3, arg4, arg5, arg6) \
LOADARGS_5(name, arg1, arg2, arg3, arg4, arg5); \
register long r8 __asm__ ("r8") = (long) (arg6)
# define ASM_INPUT_0 "r" (r0)
# define ASM_INPUT_1 ASM_INPUT_0, "0" (r3)
# define ASM_INPUT_2 ASM_INPUT_1, "r" (r4)
# define ASM_INPUT_3 ASM_INPUT_2, "r" (r5)
# define ASM_INPUT_4 ASM_INPUT_3, "r" (r6)
# define ASM_INPUT_5 ASM_INPUT_4, "r" (r7)
# define ASM_INPUT_6 ASM_INPUT_5, "r" (r8)
#endif /* __ASSEMBLER__ */
#endif /* linux/powerpc/sysdep.h */
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