/* 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, see <http://www.gnu.org/licenses/>. */ #include <stdarg.h> #include <errno.h> #include <sys/syscall.h> #include <unistd.h> /* 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. */ long int syscall (long int __sysno, ...) { /* FIXME: Keep this matching INLINE_SYSCALL for hppa */ va_list args; long int arg0, arg1, arg2, arg3, arg4, arg5; long int __sys_res; /* Load varargs */ va_start (args, __sysno); arg0 = va_arg (args, long int); arg1 = va_arg (args, long int); arg2 = va_arg (args, long int); arg3 = va_arg (args, long int); arg4 = va_arg (args, long int); arg5 = va_arg (args, long int); va_end (args); { register unsigned long int __res __asm__("r28"); K_LOAD_ARGS_6 (arg0, arg1, arg2, arg3, arg4, arg5) __asm__ __volatile__ (K_STW_ASM_PIC " ble 0x100(%%sr2, %%r0) \n" " copy %1, %%r20 \n" K_LDW_ASM_PIC : "=r" (__res) : "r" (__sysno) K_ASM_ARGS_6 : "memory", K_CALL_CLOB_REGS K_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; }