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

   1 #   Copyright 2008, 2009, 2010, 2011 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 set testfile "consecutive-reverse"
  24 set srcfile ${testfile}.c
  25
  26 if { [prepare_for_testing $testfile.exp $testfile $srcfile] } {
  27     return -1
  28 }
  29
  30 runto main
  31
  32 if [supports_process_record] {
  33     # Activate process record/replay
  34     gdb_test_no_output "record" "Turn on process record"
  35 }
  36
  37 gdb_breakpoint foo
  38 gdb_test "continue" "Breakpoint $decimal, foo .*" \
  39         "continue to breakpoint in foo"
  40
  41 set foo1_addr 0
  42 set foo2_addr 0
  43 set stop_addr 0
  44
  45 gdb_test_multiple "x /2i \$pc" "get breakpoint address for foo" {
  46     global hex
  47     global foo1_addr
  48     global foo2_addr
  49     global gdb_prompt
  50
  51     -re "=> ($hex).*\[\r\n\]+   ($hex).*$gdb_prompt $" {
  52         set foo1_addr $expect_out(1,string)
  53         set foo2_addr $expect_out(2,string)
  54         pass "get breakpoint address for foo"
  55     }
  56 }
  57
  58 gdb_test "break \*$foo2_addr" "Breakpoint $decimal at $foo2_addr: file .*" \
  59         "set bp, 2nd instr"
  60
  61 set testmsg "stopped at bp, 2nd instr"
  62 gdb_test_multiple "step" $testmsg {
  63     -re "Breakpoint $decimal, ($hex) in foo.*$gdb_prompt $" {
  64         set stop_addr $expect_out(1,string)
  65         if [eval expr "$foo2_addr == $stop_addr"] then {
  66             pass "stopped at bp, 2nd instr"
  67         } else {
  68             fail "stopped at bp, 2nd instr (wrong address)"
  69         }
  70     }
  71 }
  72
  73 ###
  74 ###
  75 ###
  76
  77 # Set reverse execution direction
  78
  79 gdb_test_no_output "set exec-dir reverse" "set reverse execution"
  80
  81 # Now step backward and hope to hit the first breakpoint.
  82
  83 set test_msg "stopped at bp in reverse, 1st instr"
  84 gdb_test_multiple "step" "$test_msg" {
  85     -re "Breakpoint $decimal, ($hex) in foo.*$gdb_prompt $" {
  86         set stop_addr $expect_out(1,string)
  87         if [eval expr "$foo1_addr == $stop_addr"] then {
  88             pass "$test_msg"
  89         } else {
  90             fail "$test_msg (wrong address)"
  91         }
  92     }
  93     -re "Breakpoint $decimal, foo.*$gdb_prompt $" {
  94         gdb_test "print \$pc == $foo1_addr" \
  95             "$decimal = 1" \
  96             "$test_msg"
  97     }
  98 }