1# Copyright 2008-2013 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 19if ![supports_reverse] { 20 return 21} 22 23standard_testfile 24 25if { [prepare_for_testing $testfile.exp $testfile $srcfile] } { 26 return -1 27} 28 29runto main 30 31if [supports_process_record] { 32 # Activate process record/replay 33 gdb_test_no_output "record" "Turn on process record" 34} 35 36gdb_breakpoint foo 37gdb_test "continue" "Breakpoint $decimal, foo .*" \ 38 "continue to breakpoint in foo" 39 40set foo1_addr 0 41set foo2_addr 0 42set stop_addr 0 43 44gdb_test_multiple "x /2i \$pc" "get breakpoint address for foo" { 45 global hex 46 global foo1_addr 47 global foo2_addr 48 global gdb_prompt 49 50 -re "=> ($hex).*\[\r\n\]+ ($hex).*$gdb_prompt $" { 51 set foo1_addr $expect_out(1,string) 52 set foo2_addr $expect_out(2,string) 53 pass "get breakpoint address for foo" 54 } 55} 56 57gdb_test "break \*$foo2_addr" "Breakpoint $decimal at $foo2_addr: file .*" \ 58 "set bp, 2nd instr" 59 60set testmsg "stopped at bp, 2nd instr" 61gdb_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 == $stop_addr"] then { 65 pass "stopped at bp, 2nd instr" 66 } else { 67 fail "stopped at bp, 2nd instr (wrong address)" 68 } 69 } 70} 71 72### 73### 74### 75 76# Set reverse execution direction 77 78gdb_test_no_output "set exec-dir reverse" "set reverse execution" 79 80# Now step backward and hope to hit the first breakpoint. 81 82set test_msg "stopped at bp in reverse, 1st instr" 83gdb_test_multiple "step" "$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} 98