12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364 |
- /* 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 <stdarg.h>
- #include <errno.h>
- #include <sys/syscall.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;
- }
|