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

   1 #   Copyright 2008, 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.  It tests stepping over
  17 # consecutive instructions in reverse.
  18
  19 if ![target_info exists gdb,can_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 [target_info exists gdb,use_precord] {
  33     # Activate process record/replay
  34     gdb_test "record" "" "Turn on process record"
  35     # FIXME: command ought to acknowledge, so we can test if it succeeded.
  36 }
  37
  38 gdb_breakpoint foo
  39 gdb_test "continue" "Breakpoint $decimal, foo .*" \
  40         "continue to breakpoint in foo"
  41
  42 set foo1_addr 0
  43 set foo2_addr 0
  44 set stop_addr 0
  45
  46 send_gdb "x /2i \$pc\n"
  47 gdb_expect {
  48     global hex
  49     global foo1_addr
  50     global foo2_addr
  51     global gdb_prompt
  52
  53     -re "($hex).*\[\r\n\]+($hex).*$gdb_prompt $" {
  54         set foo1_addr $expect_out(1,string)
  55         set foo2_addr $expect_out(2,string)
  56         pass "get breakpoint address for foo"
  57     }
  58     -re ".*$gdb_prompt $" {
  59         fail "get breakpoint address for foo"
  60         return 0;
  61     }
  62     timeout {
  63         fail "get breakpoint address for foo (timeout)"
  64         return 0;
  65     }
  66 }
  67
  68 gdb_test "break \*$foo2_addr" "Breakpoint $decimal at $foo2_addr: file .*" \
  69         "set bp, 2nd instr"
  70
  71 send_gdb "step\n"
  72 gdb_expect {
  73     -re "Breakpoint $decimal, ($hex) in foo.*$gdb_prompt $" {
  74         set stop_addr $expect_out(1,string)
  75         if [eval expr "$foo2_addr == $stop_addr"] then {
  76             pass "stopped at bp, 2nd instr"
  77         } else {
  78             fail "stopped at bp, 2nd instr (wrong address)"
  79         }
  80     }
  81     -re ".*$gdb_prompt $" {
  82         fail "stopped at bp, 2nd instr"
  83     }
  84     timeout {
  85         fail "stopped at bp, 2nd instr (timeout)"
  86
  87     }
  88 }
  89
  90 ###
  91 ###
  92 ###
  93
  94 # Set reverse execution direction
  95 # FIXME: command needs to acknowledge, so we can test if it succeeded.
  96
  97 gdb_test "set exec-dir reverse" "" "set reverse execution"
  98
  99 # Now step backward and hope to hit the first breakpoint.
 100
 101 set test_msg "stopped at bp in reverse, 1st instr"
 102 gdb_test_multiple "step" "$test_msg" {
 103     -re "Breakpoint $decimal, ($hex) in foo.*$gdb_prompt $" {
 104         set stop_addr $expect_out(1,string)
 105         if [eval expr "$foo1_addr == $stop_addr"] then {
 106             pass "$test_msg"
 107         } else {
 108             fail "$test_msg (wrong address)"
 109         }
 110     }
 111     -re "Breakpoint $decimal, foo.*$gdb_prompt $" {
 112         send_gdb "print \$pc == $foo1_addr\n"
 113         gdb_expect {
 114             -re "$decimal = 1\[\r\n\]+$gdb_prompt $" {
 115                 pass "$test_msg"
 116             }
 117             -re "$decimal = 0\[\r\n\]+$gdb_prompt $" {
 118                 fail "$test_msg (wrong address)"
 119             }
 120         }
 121     }
 122     -re ".*$gdb_prompt $" {
 123         fail "$test_msg"
 124     }
 125 }