libgloss/arc/hl/hl_exit.c

   1 /*
   2  * hl_exit.c -- provide _exit().
   3  *
   4  * Copyright (c) 2024 Synopsys Inc.
   5  *
   6  * The authors hereby grant permission to use, copy, modify, distribute,
   7  * and license this software and its documentation for any purpose, provided
   8  * that existing copyright notices are retained in all copies and that this
   9  * notice is included verbatim in any distributions. No written agreement,
  10  * license, or royalty fee is required for any of the authorized uses.
  11  * Modifications to this software may be copyrighted by their authors
  12  * and need not follow the licensing terms described here, provided that
  13  * the new terms are clearly indicated on the first page of each file where
  14  * they apply.
  15  *
  16  */
  17
  18 #include <stdint.h>
  19 #include <unistd.h>
  20
  21 #include "hl_toolchain.h"
  22 #include "hl_api.h"
  23
  24 /* From crt0.  */
  25 extern void __noreturn __longcall _exit_halt (void);
  26
  27 /* Push retcode to host.  Implements HL_SYSCALL_RETCODE.  */
  28 static __always_inline void
  29 _hl_retcode (int32_t ret)
  30 {
  31   (void) _hl_message (HL_SYSCALL_RETCODE, "i", (uint32_t) ret);
  32
  33   _hl_delete ();
  34 }
  35
  36 void __noreturn
  37 _exit (int ret)
  38 {
  39   _hl_retcode (ret);
  40
  41   _exit_halt ();
  42 }