1 # Test `info auxv' and related functionality.
3 # Copyright (C) 1992-2024 Free Software Foundation, Inc.
5 # This program is free software; you can redistribute it and/or modify
6 # it under the terms of the GNU General Public License as published by
7 # the Free Software Foundation; either version 3 of the License, or
8 # (at your option) any later version.
10 # This program is distributed in the hope that it will be useful,
11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 # GNU General Public License for more details.
15 # You should have received a copy of the GNU General Public License
16 # along with this program. If not, see <http://www.gnu.org/licenses/>.
18 # This file is based on corefile.exp which was written by Fred
19 # Fish. (fnf@cygnus.com)
21 require {is_any_target "*-*-linux*" "*-*-solaris*"}
25 set corefile ${binfile}.corefile
26 set gcorefile ${binfile}.gcore
28 if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable \
29 {debug additional_flags=-DUSE_RLIMIT}] != ""
30 && [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable \
32 untested "failed to compile"
36 # Use a fresh directory to confine the native core dumps.
37 # Make it the working directory for the inferior.
38 set coredir [standard_output_file coredir.[getpid]]
40 set core_works [expr [isnative] && ! [is_remote target]]
42 # Run GDB on the test program up to where it will dump core.
44 clean_restart ${binfile}
45 gdb_test_no_output "set print sevenbit-strings"
46 gdb_test_no_output "set width 0"
49 if {[gdb_test_no_output "set cwd $coredir" \
50 "set cwd to temporary directory for core dumps"]} {
58 set print_core_line [gdb_get_line_number "ABORT;"]
59 gdb_test "tbreak $print_core_line"
60 gdb_test continue ".*ABORT;.*"
62 proc fetch_auxv {test} {
67 # Former trailing `\[\r\n\]+' may eat just \r leaving \n in the buffer
68 # corrupting the next matches.
69 if {[gdb_test_multiple "info auxv" $test {
73 -ex "The program has no auxiliary information now" {
77 -ex "Auxiliary vector is empty" {
81 -ex "No auxiliary vector found" {
85 -re "^\[0-9\]+\[ \t\]+(AT_\[^ \t\]+)\[^\r\n\]+\r\n" {
86 lappend auxv_lines $expect_out(0,string)
89 -re "^\[0-9\]+\[ \t\]+\\?\\?\\?\[^\r\n\]+\r\n" {
90 warning "Unrecognized tag value: $expect_out(0,string)"
92 lappend auxv_lines $expect_out(0,string)
98 -re "^\[^\r\n\]+\r\n" {
100 warning "Unrecognized output: $expect_out(0,string)"
118 set live_data [fetch_auxv "info auxv on live process"]
121 set gcore_works [gdb_gcore_cmd "$gcorefile" "gcore"]
123 # Let the program continue and die.
124 gdb_test continue ".*Program received signal.*" "continue until signal"
125 gdb_test continue ".*Program terminated with signal.*" "continue and terminate"
127 # Now collect the core dump it left.
128 set test "generate native core dump"
131 set names [glob -nocomplain -directory $coredir *core*]
132 if {[llength $names] == 1} {
133 set file [file join $coredir [lindex $names 0]]
134 remote_exec build "mv $file $corefile"
138 warning "can't generate a core file - core tests suppressed - check ulimit -c"
144 remote_exec build "rm -rf $coredir"
146 # Now we can examine the core files and check that their data matches what
147 # we saw in the process. Note that the exact data can vary between runs,
148 # so it's important that the native core dump file and the gcore-created dump
149 # both be from the same run of the program as we examined live.
151 proc do_core_test {works corefile test1 test2} {
156 gdb_test "core $corefile" "Core was generated by.*" \
157 "load core file for $test1"
158 set core_data [fetch_auxv $test1]
160 if {$core_data == $live_data} {
168 do_core_test $core_works $corefile \
169 "info auxv on native core dump" "matching auxv data from live and core"
171 do_core_test $gcore_works $gcorefile \
172 "info auxv on gcore-created dump" "matching auxv data from live and gcore"