8ffdba260c
This exercises the case of the inferior disappearing while GDB is debugging it, such as something doing "kill -9 PID" while the program is stopped under GDB or GDBserver. This triggered a set of internal errors, fixed by previous patches. gdb/testsuite/ChangeLog: 2015-07-14 Pedro Alves <palves@redhat.com> * gdb.base/killed-outside.exp: New file. * gdb.base/killed-outside.c: New file.
130 lines
3.3 KiB
Text
130 lines
3.3 KiB
Text
# Copyright 2015 Free Software Foundation, Inc.
|
|
|
|
# This program is free software; you can redistribute it and/or modify
|
|
# it under the terms of the GNU General Public License as published by
|
|
# the Free Software Foundation; either version 3 of the License, or
|
|
# (at your option) any later version.
|
|
#
|
|
# This program is distributed in the hope that it will be useful,
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
# GNU General Public License for more details.
|
|
#
|
|
# You should have received a copy of the GNU General Public License
|
|
# along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
# Test that GDB doesn't get badly wedged if the inferior is killed
|
|
# from outside GDB (with SIGKILL) while the program is stopped.
|
|
|
|
standard_testfile
|
|
|
|
# Get the value of variable VAR in the inferior. MSG is used as the
|
|
# test message.
|
|
|
|
proc get_value {var msg} {
|
|
global expect_out
|
|
global gdb_prompt
|
|
global decimal
|
|
|
|
set value -1
|
|
gdb_test_multiple "print $var" "$msg" {
|
|
-re ".*= ($decimal).*\r\n$gdb_prompt $" {
|
|
set value $expect_out(1,string)
|
|
pass "$msg"
|
|
}
|
|
}
|
|
return ${value}
|
|
}
|
|
|
|
# Runs the program until a breakpoint, deletes all breakpoints, and
|
|
# then kills the inferior from _outside_ GDB, with SIGKILL. Runs CMDS
|
|
# afterwards, to make sure GDB copes with the inferior disappearing,
|
|
# and then quits GDB.
|
|
|
|
proc test {cmds_after_kill} {
|
|
global binfile
|
|
global gdb_prompt
|
|
global decimal
|
|
|
|
clean_restart ${binfile}
|
|
|
|
if ![runto done] {
|
|
return
|
|
}
|
|
|
|
# So that "continue" doesn't try a step over, etc.
|
|
delete_breakpoints
|
|
|
|
set testpid [get_value "pid" "get pid of inferior"]
|
|
if { $testpid == -1 } {
|
|
return -1
|
|
}
|
|
|
|
remote_exec target "kill -9 ${testpid}"
|
|
|
|
# Give it some time to die.
|
|
sleep 2
|
|
|
|
uplevel 1 $cmds_after_kill
|
|
|
|
# Make sure we can quit.
|
|
set msg "quit GDB"
|
|
gdb_test_multiple "quit" $msg {
|
|
-re "Quit anyway\\? \\(y or n\\) $" {
|
|
send_gdb "y\n"
|
|
exp_continue
|
|
}
|
|
eof {
|
|
pass $msg
|
|
}
|
|
}
|
|
}
|
|
|
|
if {[prepare_for_testing "failed to prepare" $testfile $srcfile $options] == -1} {
|
|
return -1
|
|
}
|
|
|
|
# The actual output GDB prints in response to commands after the
|
|
# inferior is gone isn't very well defined, and will depend on target.
|
|
# What we're trying to make sure is that GDB doesn't internal error or
|
|
# get wedged.
|
|
|
|
# Try simply continuing.
|
|
with_test_prefix "continue" {
|
|
test {
|
|
# Try stepping the program. Stepping may need to read/write
|
|
# registers, unlike continue.
|
|
gdb_test "continue" ".*"
|
|
|
|
# Try listing threads afterwards. It's probably what the user
|
|
# will do after an error.
|
|
gdb_test "info threads" ".*"
|
|
}
|
|
}
|
|
|
|
# Try stepping the program. Stepping may go through diferent code
|
|
# paths in the target backends.
|
|
with_test_prefix "stepi" {
|
|
test {
|
|
gdb_test "si" ".*"
|
|
gdb_test "info threads" ".*"
|
|
}
|
|
}
|
|
|
|
# Try fetching registers explicitly, which should cover the error many
|
|
# other commands would trigger.
|
|
with_test_prefix "registers" {
|
|
test {
|
|
gdb_test "flushregs" ".*"
|
|
gdb_test "info threads" ".*"
|
|
}
|
|
}
|
|
|
|
# Try only listing threads explicitly, first thing, which is another
|
|
# operation GDB may or not decide to do itself and is likely to be
|
|
# what a user would try after error too.
|
|
with_test_prefix "info threads" {
|
|
test {
|
|
gdb_test "info threads" ".*"
|
|
}
|
|
}
|