1 /* Copyright (C) 1997, 1998, 2001, 2003 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, see
16 <http://www.gnu.org/licenses/>. */
20 #include <sys/syscall.h>
23 /* HPPA implements syscall() in 'C'; the assembler version would
24 typically be in syscall.S. Also note that we have INLINE_SYSCALL,
25 INTERNAL_SYSCALL, and all the generated pure assembly syscall wrappers.
26 How often the function is used is unknown. */
29 syscall (long int __sysno, ...)
31 /* FIXME: Keep this matching INLINE_SYSCALL for hppa */
33 long int arg0, arg1, arg2, arg3, arg4, arg5;
37 va_start (args, __sysno);
38 arg0 = va_arg (args, long int);
39 arg1 = va_arg (args, long int);
40 arg2 = va_arg (args, long int);
41 arg3 = va_arg (args, long int);
42 arg4 = va_arg (args, long int);
43 arg5 = va_arg (args, long int);
47 register unsigned long int __res __asm__("r28");
48 K_LOAD_ARGS_6 (arg0, arg1, arg2, arg3, arg4, arg5)
49 __asm__ __volatile__ (K_STW_ASM_PIC
50 " ble 0x100(%%sr2, %%r0) \n"
54 : "r" (__sysno) K_ASM_ARGS_6
55 : "memory", K_CALL_CLOB_REGS K_CLOB_ARGS_6);
58 if ((unsigned long int) __sys_res >= (unsigned long int) -4095)
60 __set_errno (-__sys_res);