1 # Copyright 1992-2000, 2004-2005, 2007-2012 Free Software Foundation,
4 # This program is free software; you can redistribute it and/or modify
5 # it under the terms of the GNU General Public License as published by
6 # the Free Software Foundation; either version 3 of the License, or
7 # (at your option) any later version.
9 # This program is distributed in the hope that it will be useful,
10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 # GNU General Public License for more details.
14 # You should have received a copy of the GNU General Public License
15 # along with this program. If not, see <http://www.gnu.org/licenses/>.
17 # This file is based on corefile.exp which was written by Fred
18 # Fish. (fnf@cygnus.com)
25 # Are we on a target board? As of 2004-02-12, GDB didn't have a
26 # mechanism that would let it efficiently access a remote corefile.
29 untested "Remote system"
33 # Can the system run this test (in particular support sparse
34 # corefiles)? On systems that lack sparse corefile support this test
35 # consumes too many resources - gigabytes worth of disk space and
38 if { [istarget "*-*-*bsd*"]
39 || [istarget "*-*-hpux*"]
40 || [istarget "*-*-solaris*"]
41 || [istarget "*-*-darwin*"]
42 || [istarget "*-*-cygwin*"] } {
43 untested "Kernel lacks sparse corefile support (PR gdb/1551)"
47 # This testcase causes too much stress (in terms of memory usage)
48 # on certain systems...
49 if { [istarget "*-*-*irix*"] } {
50 untested "Testcase too stressful for this system"
54 set testfile "bigcore"
55 set srcfile ${testfile}.c
56 set binfile ${objdir}/${subdir}/${testfile}
57 set corefile ${objdir}/${subdir}/${testfile}.corefile
59 if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
64 # Run GDB on the bigcore program up-to where it will dump core.
68 gdb_reinitialize_dir $srcdir/$subdir
70 gdb_test_no_output "set print sevenbit-strings"
71 gdb_test_no_output "set width 0"
73 if { ![runto_main] } then {
76 set print_core_line [gdb_get_line_number "Dump core"]
77 gdb_test "tbreak $print_core_line"
78 gdb_test continue ".*print_string.*"
79 gdb_test next ".*0 = 0.*"
81 # Traverse part of bigcore's linked list of memory chunks (forward or
82 # backward), saving each chunk's address.
84 proc extract_heap { dir } {
88 set test "extract ${dir} heap"
90 gdb_test_multiple "print heap.${dir}" "$test" {
91 -re " = \\(struct list \\*\\) 0x0.*$gdb_prompt $" {
94 -re " = \\(struct list \\*\\) (0x\[0-9a-f\]*).*$gdb_prompt $" {
95 set heap [concat $heap $expect_out(1,string)]
97 pass "$test (stop at $lim)"
100 send_gdb "print \$.${dir}\n"
104 -re ".*$gdb_prompt $" {
105 fail "$test (entry $lim)"
108 fail "$test (timeout)"
113 set next_heap [extract_heap next]
114 set prev_heap [extract_heap prev]
116 # Save the total allocated size within GDB so that we can check
117 # the core size later.
118 gdb_test_no_output "set \$bytes_allocated = bytes_allocated" "save heap size"
120 # Now create a core dump
122 # Rename the core file to "TESTFILE.corefile" rather than just "core",
123 # to avoid problems with sys admin types that like to regularly prune
124 # all files named "core" from the system.
126 # Some systems append "core" to the name of the program; others append
127 # the name of the program to "core"; still others (like Linux, as of
128 # May 2003) create cores named "core.PID".
130 # Save the process ID. Some systems dump the core into core.PID.
132 gdb_test_multiple "info program" $test {
133 -re "child process (\[0-9\]+).*$gdb_prompt $" {
134 set inferior_pid $expect_out(1,string)
137 -re "$gdb_prompt $" {
138 set inferior_pid unknown
143 # Dump core using SIGABRT
144 set oldtimeout $timeout
146 gdb_test "signal SIGABRT" "Program terminated with signal SIGABRT, .*"
147 set timeout $oldtimeout
151 foreach pat [list core.${inferior_pid} ${testfile}.core core] {
152 set names [glob -nocomplain $pat]
153 if {[llength $names] == 1} {
154 set file [lindex $names 0]
155 remote_exec build "mv $file $corefile"
161 untested "Can't generate a core file"
165 # Check that the corefile is plausibly large enough. We're trying to
166 # detect the case where the operating system has truncated the file
167 # just before signed wraparound. TCL, unfortunately, has a similar
168 # problem - so use catch. It can handle the "bad" size but not
169 # necessarily the "good" one. And we must use GDB for the comparison,
172 if {[catch {file size $corefile} core_size] == 0} {
174 gdb_test_multiple "print \$bytes_allocated < $core_size" "check core size" {
175 -re " = 1\r\n$gdb_prompt $" {
176 pass "check core size"
179 -re " = 0\r\n$gdb_prompt $" {
180 pass "check core size"
185 # Probably failed due to the TCL build having problems with very
186 # large values. Since GDB uses a 64-bit off_t (when possible) it
187 # shouldn't have this problem. Assume that things are going to
188 # work. Without this assumption the test is skiped on systems
189 # (such as i386 GNU/Linux with patched kernel) which do pass.
190 pass "check core size"
194 untested "check core size (system does not support large corefiles)"
198 # Now load up that core file
200 set test "load corefile"
201 gdb_test_multiple "core $corefile" "$test" {
202 -re "A program is being debugged already. Kill it. .y or n. " {
206 -re "Core was generated by.*$gdb_prompt $" {
211 # Finally, re-traverse bigcore's linked list, checking each chunk's
212 # address against the executable. Don't use gdb_test_multiple as want
213 # only one pass/fail. Don't use exp_continue as the regular
214 # expression involving $heap needs to be re-evaluated for each new
217 proc check_heap { dir heap } {
219 set test "check ${dir} heap"
222 send_gdb "print heap.${dir}\n"
225 -re " = \\(struct list \\*\\) [lindex $heap $lim].*$gdb_prompt $" {
226 if { $lim >= [llength $heap] } {
231 send_gdb "print \$.${dir}\n"
234 -re ".*$gdb_prompt $" {
235 fail "$test (address [lindex $heap $lim])"
239 fail "$test (timeout)"
246 check_heap next $next_heap
247 check_heap prev $prev_heap