mirror of
https://sourceware.org/git/binutils-gdb.git
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131 lines
3.3 KiB
Plaintext
131 lines
3.3 KiB
Plaintext
# Copyright 2015-2020 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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# Test that GDB doesn't get badly wedged if the inferior is killed
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# from outside GDB (with SIGKILL) while the program is stopped.
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standard_testfile
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# Get the value of variable VAR in the inferior. MSG is used as the
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# test message.
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proc get_value {var msg} {
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global expect_out
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global gdb_prompt
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global decimal
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set value -1
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gdb_test_multiple "print $var" "$msg" {
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-re ".*= ($decimal).*\r\n$gdb_prompt $" {
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set value $expect_out(1,string)
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pass "$msg"
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}
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}
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return ${value}
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}
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# Runs the program until a breakpoint, deletes all breakpoints, and
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# then kills the inferior from _outside_ GDB, with SIGKILL. Runs CMDS
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# afterwards, to make sure GDB copes with the inferior disappearing,
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# and then quits GDB.
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proc test {cmds_after_kill} {
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global binfile
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global gdb_prompt
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global decimal
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clean_restart ${binfile}
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if ![runto done] {
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return
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}
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# So that "continue" doesn't try a step over, etc.
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delete_breakpoints
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set testpid [get_value "pid" "get pid of inferior"]
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if { $testpid == -1 } {
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return -1
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}
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remote_exec target "kill -9 ${testpid}"
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# Give it some time to die.
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sleep 2
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uplevel 1 $cmds_after_kill
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# Make sure we can quit.
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set msg "quit GDB"
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gdb_test_multiple "quit" $msg {
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-re "Quit anyway\\? \\(y or n\\) $" {
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send_gdb "y\n"
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exp_continue
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}
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eof {
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pass $msg
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}
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}
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}
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if {[prepare_for_testing "failed to prepare" $testfile $srcfile] == -1} {
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return -1
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}
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# The actual output GDB prints in response to commands after the
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# inferior is gone isn't very well defined, and will depend on target.
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# What we're trying to make sure is that GDB doesn't internal error or
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# get wedged.
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# Try simply continuing.
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with_test_prefix "continue" {
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test {
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# Try stepping the program. Stepping may need to read/write
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# registers, unlike continue.
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gdb_test "continue" ".*"
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# Try listing threads afterwards. It's probably what the user
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# will do after an error.
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gdb_test "info threads" ".*"
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}
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}
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# Try stepping the program. Stepping may go through diferent code
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# paths in the target backends.
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with_test_prefix "stepi" {
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test {
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gdb_test "si" ".*"
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gdb_test "info threads" ".*"
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}
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}
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# Try fetching registers explicitly, which should cover the error many
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# other commands would trigger.
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with_test_prefix "registers" {
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test {
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gdb_test "flushregs" ".*"
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gdb_test "info threads" ".*"
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}
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}
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# Try only listing threads explicitly, first thing, which is another
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# operation GDB may or not decide to do itself and is likely to be
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# what a user would try after error too.
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with_test_prefix "info threads" {
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test {
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gdb_test "info threads" ".*"
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}
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}
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