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|
set test "Server Tests:"
# The setup_server procedure always uses a "fresh" server log file, so
# we don't need to create an empty log file that this test used to do.
global server_logfile
# Don't attempt these tests if the client/server are not available
if {! [setup_server]} then {
untested "Server Tests"
return
}
proc cleanup {} {
global tmpdir
catch {exec rm -f foo}
catch {exec rm -fr $tmpdir}
shutdown_server
}
# Whether the server can communicate with the client is tested in client.exp.
# Test that the the server can handle particular situations of interest.
#-------------------------------------------------------
# Building and running a simple module.
set subtest "simple"
set rc [stap_run_batch $srcdir/systemtap.server/hello.stp --use-server=$server_spec]
if {$rc == 0} { pass "$test $subtest" } else { fail "$test $subtest" }
#-------------------------------------------------------
# Try a "stap -L"
set subtest "listing"
set rc [stap_run_batch "" -L "syscall.open" --use-server=$server_spec]
if {$rc == 0} { pass "$test $subtest" } else { fail "$test $subtest" }
#-------------------------------------------------------
# Build and run a module using "-I" and "-e SCRIPT".
set subtest "tapset"
set rc [stap_run_batch "" -I $srcdir/systemtap.server/tapset -e "probe oneshot { foo() }" --use-server=$server_spec]
if {$rc == 0} { pass "$test $subtest" } else { fail "$test $subtest" }
#-------------------------------------------------------
# Build a module using stdin.
set subtest "stdin1"
set cmd {echo "probe oneshot { exit() }" | stap -vp4 --use-server=$server_spec -}
verbose -log "executing: $cmd"
set rc 0
if {[catch {eval exec $cmd} err]} {
if {[lindex $::errorCode 0] eq "CHILDSTATUS"} {
set rc [lindex $::errorCode 2]
}
}
verbose -log "$err"
if {$rc} {
fail "$test $subtest"
} else {
pass "$test $subtest"
}
#-------------------------------------------------------
# Build another module using stdin.
set subtest "stdin2"
set cmd {stap -vp4 --use-server=$server_spec - < $srcdir/systemtap.server/hello.stp}
verbose -log "executing: $cmd"
set rc 0
if {[catch {eval exec $cmd} err]} {
if {[lindex $::errorCode 0] eq "CHILDSTATUS"} {
set rc [lindex $::errorCode 2]
}
}
verbose -log "$err"
if {$rc} {
fail "$test $subtest"
} else {
pass "$test $subtest"
}
#-------------------------------------------------------
# Building, returning and using the uprobes.ko module.
set subtest "uprobes"
if {! [uprobes_p]} then {
untested "$test $subtest tests"
} else {
# First compile a test application.
catch {exec gcc -g -o foo $srcdir/systemtap.base/jennie.c} err
if {$err == "" && [file exists foo]} {
pass "$test $subtest compile foo"
} else {
fail "$test $subtest compile foo"
}
set foo [exec pwd]/foo
if {[inode_uprobes_p]} {
# Make sure that uprobes.ko is not loaded
catch {exec /sbin/rmmod uprobes}
}
# Now use the server to compile the uprobes.stp script
set failed 1
set tmpdir ""
set cmd [concat stap -p4 $srcdir/$subdir/uprobes.stp $use_server -k -c $foo]
send_log "executing: $cmd\n"
eval spawn $cmd
expect {
-timeout 150
-re {.*Keeping temporary directory \"(.*)\"\r\n} {
set tmpdir "$expect_out(1,string)"
set failed 0
}
-re {^.*\r\n} { exp_continue }
timeout {
kill -INT -[exp_pid] 2
}
}
catch {close}; catch {wait}
if {$failed == 0} {
pass "$test $subtest -p4"
} else {
fail "$test $subtest -p4"
}
# Make sure that the uprobes.ko module was returned.
if {"$tmpdir" == "" || [inode_uprobes_p]} {
untested "$test $subtest uprobes returned"
} else {
if {[file exists $tmpdir/server/stap000000/uprobes/uprobes.ko]} {
pass "$test $subtest uprobes returned"
} else {
fail "$test $subtest uprobes returned"
}
}
if {! [installtest_p]} {
untested "$test $subtest -p5";
cleanup
return
}
# Now do it again, but follow through to phase 5
if {! [inode_uprobes_p]} {
# Make sure that uprobes.ko is not loaded
catch {exec /sbin/rmmod uprobes}
}
# Now use the server to compile and run the uprobes.stp script
set failed 1
set cmd {stap $srcdir/$subdir/uprobes.stp $use_server -c "$foo 1 2 3 4"}
send_log "executing: $cmd\n"
eval spawn $cmd
set ok 0
expect {
-re {^process[^\r\n]+foo[^\r\n]+main[^\r\n]+arg[cv]=0x[0-9a-f]+\ +arg[cv]=0x[0-9a-f]+\r\n} { incr ok; exp_continue }
-re {^process[^\r\n]+foo[^\r\n]+main[^\r\n]+return=0x0\r\n} { incr ok; exp_continue }
-re {^[^\r\n]*\r\n} { exp_continue }
-timeout 60
timeout { }
eof { }
}
catch {close}; catch {wait}
if {$ok == 10} {
pass "$test $subtest -p5"
} else {
fail "$test $subtest -p5 ($ok)"
}
}
#-------------------------------------------------------
# avahi-daemon restart: PR 15872
# Make sure that the server can survive an avahi-daemon restart and still accept requests
# via avahi. We can only test this is avahi is available.
if {$avahi_ok_p != 1} {
set dontTest 1
} else {
set dontTest 0
}
if {$dontTest == 1} {
untested "$test $subtest"
} else {
set subtest "server reacts to avahi-daemon restart"
# Notice we are using the tcl 'exec' command redirection of
# '2>@1', which is equivalent to the shell's '2>&1'.
if {[as_root "service avahi-daemon restart 2>@1"]} {
# If the avahi daemon didn't restart properly, let's try to
# fix it. If the daemon exits improperly, it can leave its pid
# file behind which mean it can't be restarted.
set pid_file "/run/avahi-daemon/pid"
if {[file exists $pid_file]} {
verbose -log "Removing the avahi-daemon pid file"
as_root "rm -f $pid_file"
# Try to restart the daemon again.
if {[as_root "service avahi-daemon restart 2>@1"]} {
# Could not restart the avahi daemon
set dontTest 1
}
} else {
# Could not restart the avahi daemon
set dontTest 1
}
}
if {$dontTest == 0} {
# Give the server time to react
catch {exec sleep 1}
}
}
if {$dontTest == 1} {
untested "$test $subtest"
} else {
set rc [catch {exec grep "Avahi client failure: Daemon connection failed" $server_logfile} result]
if {$rc != 0} {
fail "$test $subtest"
} else {
pass "$test $subtest"
}
}
set subtest "server re-established avahi-daemon connection"
if {$dontTest == 1} {
untested "$test $subtest"
} else {
set rc [catch {exec grep -c {Adding Avahi service .Systemtap Compile Server.*} $server_logfile} result]
# Make sure the target line was found more than once.
if {$rc != 0 || $result < 2} {
fail "$test $subtest"
} else {
pass "$test $subtest"
}
}
set subtest "server still serves client requests"
if {$dontTest == 1 || ! [installtest_p]} then {
untested "$test $subtest"
} else {
# Contact the server directly, so that we know we're getting the one we want.
set rc [stap_run_batch $srcdir/systemtap.server/hello.stp --use-server=$server_spec]
if {$rc == 0} { pass "$test $subtest" } else { fail "$test $subtest" }
}
#-------------------------------------------------------
cleanup
|
