gdb/testsuite/gdb.arch/thumb-singlestep.S

   1 /* Test program with deliberately incorrect execution mode transition
   2
   3    Copyright 2011-2024 Free Software Foundation, Inc.
   4
   5    This file is part of GDB.
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 3 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  19
  20         .text
  21         .align 2
  22         .global foo
  23         .thumb
  24         /* .thumb_func deliberately omitted */
  25 foo:
  26         mov r0,#42
  27         bx lr
  28
  29         .text
  30         .align  2
  31         .global main
  32         .thumb
  33         .thumb_func
  34         .type   main, %function
  35 main:
  36         push    {r3, lr}
  37         blx     foo
  38         pop     {r3, pc}
  39         .size   main, .-main
  40
  41         .section        .note.GNU-stack,"",%progbits