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# Copyright 2008, 2009, 2010 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/>.
# This test is based on gdb.base/attach.exp with modifications by Jeff Johnston
# <jjohnstn@redhat.com> and Jan Kratochvil <jan.kratochvil@redhat.com>.
# This test only works on Linux
if { ![isnative] || [is_remote host] || ![istarget *-linux*] } {
continue
}
set testfile "attachstop-mt"
set srcfile ${testfile}.c
set binfile ${objdir}/${subdir}/${testfile}
set escapedbinfile [string_to_regexp ${objdir}/${subdir}/${testfile}]
#execute_anywhere "rm -f ${binfile}"
remote_exec build "rm -f ${binfile}"
# For debugging this test
#
#log_user 1
# build the test case
#
if { [gdb_compile_pthreads "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
untested attachstop-mt.exp
return -1
}
if [get_compiler_info ${binfile}] {
return -1
}
# Start the program running and then wait for a bit, to be sure
# that it can be attached to.
set testpid [eval exec $binfile &]
# No race
sleep 2
# The testcase has three threads, find some other thread TID for $testpid2.
set tids [exec sh -c "echo /proc/$testpid/task/*"]
regsub -all /proc/$testpid/task/ $tids {} tids
if {$tids == "*"} {
unresolved "/proc/PID/task is not supported (kernel-2.4?)"
remote_exec build "kill -9 ${testpid}"
return -1
}
set tids [lsort -integer [split $tids]]
if {[llength $tids] != 3 || [lindex $tids 0] != $testpid} {
verbose -log "Invalid TIDs <$tids> for PID $testpid"
fail "Invalid TIDs found"
remote_exec build "kill -9 ${testpid}"
return -1
}
set testpid2 [lindex $tids 2]
# Initial sanity test it is normally sleeping
set status2 /proc/${testpid}/task/${testpid2}/status
set fileid0 [open $status2 r];
gets $fileid0 line1;
gets $fileid0 line2;
close $fileid0;
set test "attach0, initial sanity check of the sleeping state"
if {[string match "*(sleeping)*" $line2]} {
pass $test
} else {
fail $test
}
# Sttach and detach to test it will not become stopped
gdb_start
gdb_reinitialize_dir $srcdir/$subdir
gdb_load ${binfile}
set test "attach0 to sleeping"
gdb_test_multiple "attach $testpid" "$test" {
-re "Attaching to program.*`?$escapedbinfile'?, process $testpid.*$gdb_prompt $" {
pass "$test"
}
}
gdb_test "gcore /dev/null" ".*aved corefile.*" "attach0 to sleeping gcore invocation"
gdb_test "thread 2" ".*witching to thread 2 .*" "attach0 to sleeping switch thread"
gdb_test "bt" ".*sleep.*func.*" "attach0 to sleeping bt"
# Exit and detach the process.
gdb_exit
# No race
sleep 2
# Check it did not get stopped by our gdb
set fileid1 [open $status2 r];
gets $fileid1 line1;
gets $fileid1 line2;
close $fileid1;
set test "attach1, post-gdb sanity check of the sleeping state - Red Hat BZ 197584"
if {[string match "*(sleeping)*" $line2]} {
pass $test
} else {
fail $test
}
# Stop the program
remote_exec build "kill -s STOP ${testpid}"
# No race
sleep 2
# Check it really got stopped by kill(1)
set fileid2 [open $status2 r];
gets $fileid2 line1;
gets $fileid2 line2;
close $fileid2;
set test "attach2, initial sanity check of the stopped state"
if {[string match "*(stopped)*" $line2]} {
pass $test
} else {
fail $test
}
# Start with clean gdb
gdb_start
gdb_reinitialize_dir $srcdir/$subdir
gdb_load ${binfile}
# Verify that we can attach to the process by first giving its
# executable name via the file command, and using attach with the
# process ID.
set test "set file, before attach3 to stopped process"
gdb_test_multiple "file $binfile" "$test" {
-re "Load new symbol table from.*y or n. $" {
gdb_test "y" "Reading symbols from $escapedbinfile\.\.\.*done." \
"$test (re-read)"
}
-re "Reading symbols from $escapedbinfile\.\.\.*done.*$gdb_prompt $" {
pass "$test"
}
}
set test "attach3 to stopped, after setting file"
gdb_test_multiple "attach $testpid" "$test" {
-re "Attaching to program.*`?$escapedbinfile'?, process $testpid.*$gdb_prompt $" {
pass "$test"
}
}
# We may be already after the threads phase.
# `thread 2' command is important for the test to switch the current thread to
# a non-primary one for the detach process.
gdb_test "thread 2" ".*(witching to thread 2 |hread ID 2 not known).*" "attach3 to stopped switch thread"
gdb_test "bt" ".*sleep.*(func|main).*" "attach3 to stopped bt"
# Exit and detach the process.
gdb_exit
# Stop the program
remote_exec build "kill -s STOP ${testpid}"
# No race
sleep 2
# Continue the test as we would hit another expected bug regarding
# Program received signal SIGSTOP, Stopped (signal).
# across NPTL threads.
gdb_start
gdb_reinitialize_dir $srcdir/$subdir
gdb_load ${binfile}
# Verify that we can attach to the process just by giving the
# process ID.
set test "attach4 to stopped, after setting file"
gdb_test_multiple "attach $testpid" "$test" {
-re "Attaching to program.*`?$escapedbinfile'?, process $testpid.*$gdb_prompt $" {
pass "$test"
}
}
# We may be already after the threads phase.
# `thread 2' command is important for the test to switch the current thread to
# a non-primary one for the detach process.
gdb_test "thread 2" ".*(witching to thread 2 |hread ID 2 not known).*" "attach4 to stopped switch thread"
gdb_test "bt" ".*sleep.*(func|main).*" "attach4 to stopped bt"
# RHEL3U8 kernel-2.4.21-47.EL will not return SIGINT but only shorten the sleep.
gdb_breakpoint [gdb_get_line_number "Ridiculous time"]
gdb_breakpoint [gdb_get_line_number "cut the sleep time"]
set test "attach4 continue"
gdb_test_multiple "continue" "continue ($test)" {
-re "Continuing" {
pass "continue ($test)"
}
}
# For this to work we must be sure to consume the "Continuing."
# message first, or GDB's signal handler may not be in place.
after 1000 {send_gdb "\003"}
set test "attach4 stop by interrupt"
gdb_expect {
-re "Program received signal SIGINT.*$gdb_prompt $"
{
pass $test
}
-re "Breakpoint \[0-9\].*$srcfile.*$gdb_prompt $"
{
pass $test
}
timeout
{
fail "$test (timeout)"
}
}
gdb_exit
# No race
sleep 2
# At this point, the process should be sleeping
set fileid4 [open $status2 r];
gets $fileid4 line1;
gets $fileid4 line2;
close $fileid4;
set test "attach4, exit leaves process sleeping"
if {[string match "*(sleeping)*" $line2]} {
pass $test
} else {
fail $test
}
# Make sure we don't leave a process around to confuse
# the next test run (and prevent the compile by keeping
# the text file busy), in case the "set should_exit" didn't
# work.
remote_exec build "kill -9 ${testpid}"
return 0
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