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/* Copyright (C) 1997, 1998, 2001, 2003 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. */
#include <sysdep.h>
#include <errno.h>
extern int __syscall_error(int err_no);
extern int syscall (int sysnum, int arg0, int arg1, int arg2,
int arg3, int arg4, int arg5);
/* This routine is jumped to by all the syscall handlers, to stash
an error number into errno. */
int
__syscall_error (int err_no)
{
__set_errno (err_no);
return -1;
}
/* HPPA implements syscall() in 'C'; the assembler version would
typically be in syscall.S. Also note that we have INLINE_SYSCALL,
INTERNAL_SYSCALL, and all the generated pure assembly syscall wrappers.
How often the function is used is unknown. */
int
syscall (int sysnum, int arg0, int arg1, int arg2, int arg3, int arg4,
int arg5)
{
/* FIXME: Keep this matching INLINE_SYSCALL for hppa */
long int __sys_res;
{
register unsigned long int __res asm("r28");
LOAD_ARGS_6 (arg0, arg1, arg2, arg3, arg4, arg5)
asm volatile (STW_ASM_PIC
" ble 0x100(%%sr2, %%r0) \n"
" copy %1, %%r20 \n"
LDW_ASM_PIC
: "=r" (__res)
: "r" (sysnum) ASM_ARGS_6
: CALL_CLOB_REGS CLOB_ARGS_6);
__sys_res = __res;
}
if ((unsigned long int) __sys_res >= (unsigned long int) -4095)
{
__set_errno (-__sys_res);
__sys_res = -1;
}
return __sys_res;
}
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