gdb/testsuite/gdb.reverse/consecutive-reverse.exp

   1 #   Copyright 2008-2012 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.  It tests stepping over
  17 # consecutive instructions in reverse.
  18
  19 if ![supports_reverse] {
  20     return
  21 }
  22
  23 standard_testfile
  24
  25 if { [prepare_for_testing $testfile.exp $testfile $srcfile] } {
  26     return -1
  27 }
  28
  29 runto main
  30
  31 if [supports_process_record] {
  32     # Activate process record/replay
  33     gdb_test_no_output "record" "Turn on process record"
  34 }
  35
  36 gdb_breakpoint foo
  37 gdb_test "continue" "Breakpoint $decimal, foo .*" \
  38         "continue to breakpoint in foo"
  39
  40 set foo1_addr 0
  41 set foo2_addr 0
  42 set stop_addr 0
  43
  44 gdb_test_multiple "x /2i \$pc" "get breakpoint address for foo" {
  45     global hex
  46     global foo1_addr
  47     global foo2_addr
  48     global gdb_prompt
  49
  50     -re "=> ($hex).*\[\r\n\]+   ($hex).*$gdb_prompt $" {
  51         set foo1_addr $expect_out(1,string)
  52         set foo2_addr $expect_out(2,string)
  53         pass "get breakpoint address for foo"
  54     }
  55 }
  56
  57 gdb_test "break \*$foo2_addr" "Breakpoint $decimal at $foo2_addr: file .*" \
  58         "set bp, 2nd instr"
  59
  60 set testmsg "stopped at bp, 2nd instr"
  61 gdb_test_multiple "step" $testmsg {
  62     -re "Breakpoint $decimal, ($hex) in foo.*$gdb_prompt $" {
  63         set stop_addr $expect_out(1,string)
  64         if [eval expr "$foo2_addr == $stop_addr"] then {
  65             pass "stopped at bp, 2nd instr"
  66         } else {
  67             fail "stopped at bp, 2nd instr (wrong address)"
  68         }
  69     }
  70 }
  71
  72 ###
  73 ###
  74 ###
  75
  76 # Set reverse execution direction
  77
  78 gdb_test_no_output "set exec-dir reverse" "set reverse execution"
  79
  80 # Now step backward and hope to hit the first breakpoint.
  81
  82 set test_msg "stopped at bp in reverse, 1st instr"
  83 gdb_test_multiple "step" "$test_msg" {
  84     -re "Breakpoint $decimal, ($hex) in foo.*$gdb_prompt $" {
  85         set stop_addr $expect_out(1,string)
  86         if [eval expr "$foo1_addr == $stop_addr"] then {
  87             pass "$test_msg"
  88         } else {
  89             fail "$test_msg (wrong address)"
  90         }
  91     }
  92     -re "Breakpoint $decimal, foo.*$gdb_prompt $" {
  93         gdb_test "print \$pc == $foo1_addr" \
  94             "$decimal = 1" \
  95             "$test_msg"
  96     }
  97 }