1  /*
       2   * Raw syscalls.
       3   *
       4   * Copyright (c) 2018-2021 The strace developers.
       5   * All rights reserved.
       6   *
       7   * SPDX-License-Identifier: LGPL-2.1-or-later
       8   */
       9  
      10  #ifndef STRACE_RAW_SYSCALL_H
      11  # define STRACE_RAW_SYSCALL_H
      12  
      13  # include "kernel_types.h"
      14  
      15  static inline kernel_ulong_t
      16  raw_syscall_0(const kernel_ulong_t nr, kernel_ulong_t *err)
      17  {
      18  	register kernel_ulong_t g1 __asm__("g1") = nr;
      19  	register kernel_ulong_t rval __asm__("o0");
      20  	__asm__ __volatile__("ta 0x10\n\t"
      21  			     "bcc 1f\n\t"
      22  			     "mov 0, %0\n\t"
      23  			     "mov 1, %0\n\t"
      24  			     "1:"
      25  			     : "+r"(g1), "=r"(rval)
      26  			     :
      27  			     : "memory", "cc", "f0", "f1", "f2", "f3", "f4",
      28  			       "f5", "f6", "f7", "f8", "f9", "f10", "f11",
      29  			       "f12", "f13", "f14", "f15", "f16", "f17",
      30  			       "f18", "f19", "f20", "f21", "f22", "f23",
      31  			       "f24", "f25", "f26", "f27", "f28", "f29",
      32  			       "f30", "f31");
      33  	*err = g1;
      34  	return rval;
      35  }
      36  # define raw_syscall_0 raw_syscall_0
      37  
      38  #endif /* !STRACE_RAW_SYSCALL_H */