gdb/testsuite/gdb.arch/i386-disp-step.S

   1 /* Copyright 2009 Free Software Foundation, Inc.
   2
   3    This program is free software; you can redistribute it and/or modify
   4    it under the terms of the GNU General Public License as published by
   5    the Free Software Foundation; either version 3 of the License, or
   6    (at your option) any later version.
   7
   8    This program is distributed in the hope that it will be useful,
   9    but WITHOUT ANY WARRANTY; without even the implied warranty of
  10    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11    GNU General Public License for more details.
  12
  13    You should have received a copy of the GNU General Public License
  14    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  15
  16    This file is part of the gdb testsuite.
  17    It tests displaced stepping over various insns that require special
  18    handling.  */
  19
  20         .text
  21
  22         .global main
  23 main:
  24         nop
  25
  26 /* test call/ret */
  27
  28         .global test_call
  29 test_call:
  30         call test_call_subr
  31         nop
  32         .global test_ret_end
  33 test_ret_end:
  34         nop
  35
  36 /* test syscall */
  37
  38         .global test_syscall
  39         mov $0x14,%eax /* getpid */
  40 test_syscall:
  41         int $0x80
  42         nop
  43 test_syscall_end:
  44         nop
  45
  46 /* all done */
  47
  48         pushl $0
  49         call exit
  50         hlt
  51
  52 /***********************************************/
  53
  54 /* subroutine to help test call/ret */
  55
  56 test_call_subr:
  57         nop
  58         .global test_call_end
  59 test_call_end:
  60         nop
  61
  62         .global test_ret
  63 test_ret:
  64         ret