gdb/testsuite/gdb.arch/ppc64-break-on-_exit.c

   1 /* This file is part of GDB, the GNU debugger.
   2
   3    Copyright 2021-2024 Free Software Foundation, Inc.
   4
   5    This program is free software; you can redistribute it and/or modify
   6    it under the terms of the GNU General Public License as published by
   7    the Free Software Foundation; either version 3 of the License, or
   8    (at your option) any later version.
   9
  10    This program 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
  13    GNU General Public License for more details.
  14
  15    You should have received a copy of the GNU General Public License
  16    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  17
  18 /* This file was generated from glibc's 2.31 _exit.c, by doing a glibc build
  19    on ppc64le-linux, copying the command line, adding -g0 -save-temps and
  20    reducing the _exit.i file.  */
  21
  22 void _exit (int status);
  23
  24 extern __thread int __libc_errno;
  25
  26 void
  27 _exit (int status)
  28 {
  29   while (1)
  30     {
  31       ({
  32         long int sc_err __attribute__ ((unused));
  33         long int sc_ret
  34           = ({
  35               register long int r0 __asm__ ("r0");
  36               register long int r3 __asm__ ("r3");
  37               register long int r4 __asm__ ("r4");
  38               register long int r5 __asm__ ("r5");
  39               register long int r6 __asm__ ("r6");
  40               register long int r7 __asm__ ("r7");
  41               register long int r8 __asm__ ("r8");
  42               long int arg1 = (long int) (status);
  43
  44               r0 = 234;
  45
  46               extern void __illegally_sized_syscall_arg1 (void);
  47               if (__builtin_classify_type (status) != 5 && sizeof (status) > 8)
  48                 __illegally_sized_syscall_arg1 ();
  49
  50               r3 = arg1;
  51               __asm__ __volatile__ ("sc\n\t" "mfcr  %0\n\t" "0:"
  52                                     : "=&r" (r0), "=&r" (r3), "=&r" (r4),
  53                                       "=&r" (r5), "=&r" (r6), "=&r" (r7),
  54                                       "=&r" (r8) : "0" (r0), "1" (r3)
  55                                     : "r9", "r10", "r11", "r12", "cr0", "ctr", "memory");
  56               sc_err = r0;
  57
  58               r3;
  59             });
  60
  61         if (((void) (sc_ret), __builtin_expect ((sc_err) & (1 << 28), 0)))
  62           {
  63             (__libc_errno = ((sc_ret)));
  64             sc_ret = -1L;
  65           }
  66
  67         sc_ret;
  68       });
  69
  70       ({
  71         long int sc_err __attribute__ ((unused));
  72         long int sc_ret
  73           = ({
  74               register long int r0 __asm__ ("r0");
  75               register long int r3 __asm__ ("r3");
  76               register long int r4 __asm__ ("r4");
  77               register long int r5 __asm__ ("r5");
  78               register long int r6 __asm__ ("r6");
  79               register long int r7 __asm__ ("r7");
  80               register long int r8 __asm__ ("r8");
  81               long int arg1 = (long int) (status);
  82
  83               r0 = 1;
  84
  85               extern void __illegally_sized_syscall_arg1 (void);
  86               if (__builtin_classify_type (status) != 5 && sizeof (status) > 8)
  87                 __illegally_sized_syscall_arg1 ();
  88
  89               r3 = arg1;
  90               __asm__ __volatile__ ("sc\n\t" "mfcr  %0\n\t" "0:"
  91                                     : "=&r" (r0), "=&r" (r3), "=&r" (r4),
  92                                       "=&r" (r5), "=&r" (r6), "=&r" (r7),
  93                                       "=&r" (r8) : "0" (r0), "1" (r3)
  94                                     : "r9", "r10", "r11", "r12", "cr0", "ctr", "memory");
  95               sc_err = r0;
  96
  97               r3;
  98             });
  99
 100         if (((void) (sc_ret), __builtin_expect ((sc_err) & (1 << 28), 0)))
 101           {
 102             (__libc_errno = ((sc_ret)));
 103             sc_ret = -1L;
 104           }
 105
 106         sc_ret;
 107       });
 108
 109
 110       asm (".long 0");
 111     }
 112 }