177 lines
4.8 KiB
Text
177 lines
4.8 KiB
Text
# Test `info auxv' and related functionality.
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# Copyright (C) 1992-2015 Free Software Foundation, Inc.
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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# This file is based on corefile.exp which was written by Fred
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# Fish. (fnf@cygnus.com)
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if { ! [istarget "*-*-linux*"] && ! [istarget "*-*-solaris*"] } {
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verbose "Skipping auxv.exp because of lack of support."
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return
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}
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standard_testfile .c
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set corefile ${binfile}.corefile
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set gcorefile ${binfile}.gcore
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if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable \
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{debug additional_flags=-DUSE_RLIMIT}] != ""
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&& [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable \
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{debug}] != "" } {
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untested "couldn't compile ${srcdir}/${subdir}/${srcfile}"
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return -1
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}
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# Use a fresh directory to confine the native core dumps.
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# Make it the working directory for gdb and its child.
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set coredir [standard_output_file coredir.[getpid]]
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file mkdir $coredir
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set core_works [expr [isnative] && ! [is_remote target]]
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# Run GDB on the test program up to where it will dump core.
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clean_restart ${binfile}
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gdb_test_no_output "set print sevenbit-strings"
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gdb_test_no_output "set width 0"
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if {$core_works} {
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if {[gdb_test "cd $coredir" ".*Working directory .*" \
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"cd to temporary directory for core dumps"]} {
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set core_works 0
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}
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}
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if { ![runto_main] } then {
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gdb_suppress_tests
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}
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set print_core_line [gdb_get_line_number "ABORT;"]
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gdb_test "tbreak $print_core_line"
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gdb_test continue ".*ABORT;.*"
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proc fetch_auxv {test} {
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global gdb_prompt
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set auxv_lines {}
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set bad -1
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# Former trailing `\[\r\n\]+' may eat just \r leaving \n in the buffer
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# corrupting the next matches.
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if {[gdb_test_multiple "info auxv" $test {
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-re "info auxv\r\n" {
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exp_continue
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}
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-ex "The program has no auxiliary information now" {
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set bad 1
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exp_continue
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}
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-ex "Auxiliary vector is empty" {
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set bad 1
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exp_continue
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}
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-ex "No auxiliary vector found" {
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set bad 1
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exp_continue
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}
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-re "^\[0-9\]+\[ \t\]+(AT_\[^ \t\]+)\[^\r\n\]+\r\n" {
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lappend auxv_lines $expect_out(0,string)
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exp_continue
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}
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-re "^\[0-9\]+\[ \t\]+\\?\\?\\?\[^\r\n\]+\r\n" {
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warning "Unrecognized tag value: $expect_out(0,string)"
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set bad 1
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lappend auxv_lines $expect_out(0,string)
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exp_continue
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}
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-re "$gdb_prompt $" {
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incr bad
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}
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-re "^\[^\r\n\]+\r\n" {
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if {!$bad} {
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warning "Unrecognized output: $expect_out(0,string)"
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set bad 1
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}
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exp_continue
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}
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}] != 0} {
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return {}
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}
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if {$bad} {
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fail $test
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return {}
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}
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pass $test
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return $auxv_lines
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}
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set live_data [fetch_auxv "info auxv on live process"]
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# Now try gcore.
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set gcore_works [gdb_gcore_cmd "$gcorefile" "gcore"]
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# Let the program continue and die.
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gdb_test continue ".*Program received signal.*"
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gdb_test continue ".*Program terminated with signal.*"
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# Now collect the core dump it left.
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set test "generate native core dump"
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if {$core_works} {
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# Find the
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set names [glob -nocomplain -directory $coredir *core*]
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if {[llength $names] == 1} {
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set file [file join $coredir [lindex $names 0]]
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remote_exec build "mv $file $corefile"
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pass $test
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} else {
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set core_works 0
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warning "can't generate a core file - core tests suppressed - check ulimit -c"
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unsupported $test
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}
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} else {
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unsupported $test
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}
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remote_exec build "rm -rf $coredir"
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# Now we can examine the core files and check that their data matches what
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# we saw in the process. Note that the exact data can vary between runs,
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# so it's important that the native core dump file and the gcore-created dump
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# both be from the same run of the program as we examined live.
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proc do_core_test {works corefile test1 test2} {
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if {! $works} {
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unsupported $test1
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unsupported $test2
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} else {
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gdb_test "core $corefile" "Core was generated by.*" \
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"load core file for $test1" \
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"A program is being debugged already.*" "y"
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set core_data [fetch_auxv $test1]
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global live_data
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if {$core_data == $live_data} {
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pass $test2
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} else {
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fail $test2
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}
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}
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}
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do_core_test $core_works $corefile \
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"info auxv on native core dump" "matching auxv data from live and core"
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do_core_test $gcore_works $gcorefile \
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"info auxv on gcore-created dump" "matching auxv data from live and gcore"
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