1# Copyright 2004, 2007 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# Please email any bugs, comments, and/or additions to this file to: 17# bug-gdb@prep.ai.mit.edu 18 19# Author: Paul N. Hilfinger (Hilfinger@gnat.com) 20 21# Test that GDB cleans up properly after errors that result when a 22# breakpoint is reset. 23 24if $tracelevel then { 25 strace $tracelevel 26} 27 28set prms_id 0 29set bug_id 0 30 31# IDT/SIM apparently doesn't have enough file descriptors to allow the 32# problem checked by this test to occur. 33if [istarget "mips-idt-*"] { 34 return 0; 35} 36 37set testfile "chng-syms" 38set srcfile ${testfile}.c 39set binfile ${objdir}/${subdir}/${testfile} 40 41if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug additional_flags=-DVARIABLE=var1}] != "" } { 42 untested chng-syms.exp 43 return -1 44} 45 46set oldtimeout $timeout 47set timeout 10 48verbose "Timeout is now 10 seconds" 2 49 50proc expect_to_stop_here { ident } { 51 global gdb_prompt 52 global decimal 53 54 # the "at foo.c:36" output we get with -g. 55 # the "in func" output we get without -g. 56 gdb_expect { 57 -re "Breakpoint \[0-9\]*, stop_here .*$gdb_prompt $" { 58 return 1 59 } 60 -re "$gdb_prompt $" { 61 fail "running to stop_here $ident" 62 return 0 63 } 64 timeout { 65 fail "running to stop_here $ident (timeout)" 66 return 0 67 } 68 } 69 return 1 70} 71 72gdb_exit 73gdb_start 74gdb_reinitialize_dir $srcdir/$subdir 75gdb_load ${binfile} 76 77gdb_test "break stop_here if (var1 == 42)" \ 78 "Breakpoint.*at.* file .*$srcfile, line.*" \ 79 "setting conditional breakpoint on function" 80gdb_run_cmd 81 82expect_to_stop_here "first time" 83 84gdb_continue_to_end "breakpoint first time through" 85 86# Now we recompile the executable, but without a variable named "var1", first 87# waiting to insure that even on fast machines, the file modification times 88# are distinct. This will force GDB to reload the file on the 89# next "run" command, causing an error when GDB tries to tries to reset 90# the breakpoint. 91 92sleep 2 93if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug additional_flags=-DVARIABLE=var2}] != "" } { 94 95# Complication: Since GDB generally holds an open file descriptor on the 96# executable at this point, there are some systems in which the 97# re-compilation will fail. In such cases, we'll consider the test 98# (vacuously) passed providing that re-running it succeeds as before. 99 100 gdb_run_cmd 101 expect_to_stop_here "after re-compile fails" 102 gdb_continue_to_end "after re-compile fails" 103 104} else { 105 106 gdb_run_cmd 107 gdb_expect { 108 -re "Error in re-setting .*No symbol .var1..*Program exited normally.*$gdb_prompt $" { 109 pass "running with invalidated bpt condition after executable changes" 110 } 111 -re "Error in re-setting .*No symbol .var1..*Breakpoint .*,( 0x.* in)? (\[^ \]*)exit .*$gdb_prompt $" { 112 pass "running with invalidated bpt condition after executable changes" 113 } 114 -re "$gdb_prompt $" { 115 fail "running with invalidated bpt condition after executable changes" 116 } 117 timeout { 118 fail "(timeout) running with invalidated bpt condition after executable changes" 119 } 120 } 121 122} 123 124set timeout $oldtimeout 125verbose "Timeout is now $timeout seconds" 2 126return 0 127