gdb/testsuite/gdb.arch/arm-cmse-sgstubs.c

   1 /* This testcase is part of GDB, the GNU debugger.
   2
   3    Copyright 2019-2024 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 #include <stdio.h>
  19 extern void func ();
  20 void
  21 __acle_se_func ()
  22 {
  23   printf ("__acle_se_func\n");
  24 }
  25
  26 /* The following code is written using asm so that the instructions in function
  27  * "func" will be placed in .gnu.sgstubs section of the executable.  */
  28 asm ("\t.section .gnu.sgstubs,\"ax\",%progbits\n"
  29      "\t.global func\n"
  30      "\t.type func, %function\n"
  31      "func:\n"
  32      "\tnop @sg\n"
  33      "\tb __acle_se_func @b.w");
  34
  35 void
  36 fun1 ()
  37 {
  38   printf ("In fun1\n");
  39 }
  40
  41 int
  42 main (void)
  43 {
  44   func ();
  45   fun1 ();
  46   __acle_se_func ();
  47   func ();
  48
  49   return 0;
  50 }