gdb/testsuite/gdb.reverse/s390-mvcle.c

   1 /* This testcase is part of GDB, the GNU debugger.
   2
   3    Copyright 2015-2023 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 <stddef.h>
  19
  20 char dst[0x1000000];
  21 char src[8] = "abcdefgh";
  22
  23 void
  24 marker1 (void)
  25 {
  26 }
  27
  28 void
  29 marker2 (void)
  30 {
  31 }
  32
  33 static void
  34 mvcle (void)
  35 {
  36   register void *pdst asm("r2") = dst;
  37   register size_t ndst asm("r3") = sizeof dst;
  38   register void *psrc asm("r4") = src;
  39   register size_t nsrc asm("r5") = sizeof src;
  40   asm volatile ("0: mvcle 2, 4, 0x69\n"
  41                 "jo 0b\n"
  42                 : "=r" (pdst), "=r" (ndst), "=r" (psrc), "=r" (nsrc)
  43                 : "0" (pdst), "1" (ndst), "2" (psrc), "3" (nsrc)
  44                 : "cc", "memory");
  45 }
  46
  47 int
  48 main (void)
  49 {
  50   marker1 ();
  51   mvcle ();
  52   marker2 ();
  53   return 0;
  54 }