libgloss/riscv/semihost-sys_exit.c

   1 /*
   2  * Copyright (C) 2020 Embecosm Limited
   3  * SPDX-License-Identifier: BSD-2-Clause
   4  */
   5 #include <machine/syscall.h>
   6 #include "semihost_syscall.h"
   7
   8 #define ADP_Stopped_ApplicationExit 0x20026
   9
  10 /* Exit a program without cleaning up files.  */
  11 void
  12 _exit (int exit_status)
  13 {
  14 #if __riscv_xlen == 32
  15   syscall_errno (SEMIHOST_exit, (long *) ADP_Stopped_ApplicationExit);
  16 #else
  17   /* The semihosting exit operation only allows 64-bit targets to report the
  18      exit code.  */
  19   long data_block[] = {ADP_Stopped_ApplicationExit, exit_status};
  20   syscall_errno (SEMIHOST_exit, data_block);
  21 #endif
  22   while (1);
  23 }