gdb/testsuite/gdb.arch/powerpc-tar.c

   1 /* This testcase is part of GDB, the GNU debugger.
   2
   3    Copyright (C) 2018-2022 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 int main (void)
  19 {
  20   void * target1 = &&target1_l;
  21   void * target2 = &&target2_l;
  22   asm volatile ("mtspr 815,%0" : : "r" (target1) : );
  23
  24   /* Branch always to TAR.  */
  25   asm volatile ("bctar 20,0,0"); // marker
  26
  27  target2_l:
  28   asm volatile ("nop"); // marker 2
  29  target1_l:
  30   asm volatile ("nop");
  31
  32   return 0;
  33 }