1  /* Indirect system call.  Linux generic implementation.
       2     Copyright (C) 1997-2023 Free Software Foundation, Inc.
       3     This file is part of the GNU C Library.
       4  
       5     The GNU C Library is free software; you can redistribute it and/or
       6     modify it under the terms of the GNU Lesser General Public
       7     License as published by the Free Software Foundation; either
       8     version 2.1 of the License, or (at your option) any later version.
       9  
      10     The GNU C Library is distributed in the hope that it will be useful,
      11     but WITHOUT ANY WARRANTY; without even the implied warranty of
      12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      13     Lesser General Public License for more details.
      14  
      15     You should have received a copy of the GNU Lesser General Public
      16     License along with the GNU C Library.  If not, see
      17     <https://www.gnu.org/licenses/>.  */
      18  
      19  #include <stdarg.h>
      20  #include <sysdep.h>
      21  
      22  long int
      23  syscall (long int number, ...)
      24  {
      25    va_list args;
      26  
      27    va_start (args, number);
      28    long int a0 = va_arg (args, long int);
      29    long int a1 = va_arg (args, long int);
      30    long int a2 = va_arg (args, long int);
      31    long int a3 = va_arg (args, long int);
      32    long int a4 = va_arg (args, long int);
      33    long int a5 = va_arg (args, long int);
      34    va_end (args);
      35  
      36    long int r = INTERNAL_SYSCALL_NCS_CALL (number, a0, a1, a2, a3, a4, a5);
      37    if (__glibc_unlikely (INTERNAL_SYSCALL_ERROR_P (r)))
      38      {
      39        __set_errno (-r);
      40        return -1;
      41      }
      42    return r;
      43  }