libqtest is using g_strdup_printf to format QMP commands, but
this does not work if the argument strings need to be escaped.
Instead, use the fancy %-formatting functionality of QObject.
The only change required in tests is that strings have to be
formatted as %s, not '%s' or \"%s\". Luckily this usage of
parameterized QMP commands is not that frequent.
The leak is in socket_sendf. Since we are extracting the send
loop to a new function, fix it now.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
POSIX specifies that address_len shall on output specify the length of
the stored address; it does not however specify whether it may get
updated on failure as well to, e.g., zero.
In case EINTR occurs, re-initialize the variable to the desired value.
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
We're not using the GLib infrastructure here, to allow cleaning up the
sockets. Still, knowing why a certain test run failed can be valuable.
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
In practice this seems very unlikely, so cleanup is neglected, as done
for bind().
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Keep track of active qtest instances so we can kill them when the test
aborts. This ensures no QEMU processes are left running after test
failure.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Marcel Apfelbaum <marcel.a@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
It turns out there are test cases that use multiple libqtest instances.
We cannot use a global qtest instance in the SIGABRT handler.
This reverts commit cb201b4872.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Marcel Apfelbaum <marcel.a@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
If an assertion fails during qtest_init() the SIGABRT handler is
invoked. This is the correct behavior since we need to kill the QEMU
process to avoid leaking it when the test dies.
The global_qtest pointer used by the SIGABRT handler is currently only
assigned after qtest_init() returns. This results in a segfault if an
assertion failure occurs during qtest_init().
Move global_qtest assignment inside qtest_init(). Not pretty but let's
face it - the signal handler depends on global state.
Reported-by: Marcel Apfelbaum <marcel.a@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Tested-by: Marcel Apfelbaum <marcel.a@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Older versions of gcc (eg 4.6) can't handle varargs functions declared
inline for anything other than completely trivial uses, and complain:
tests/qom-test.c: In function 'qmp': tests/libqtest.h:359:60: sorry,
unimplemented: function 'qmp' can never be inlined because it uses
variable argument lists
Avoid this problem by putting the functions into libqtest.c instead
of using inline definitions in libqtest.h.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Andreas Färber <afaerber@suse.de>
'socket_accept' waits for QEMU to init its unix socket.
If QEMU encounters an error during command line parsing,
it can exit before initializing the communication channel.
Using a timeout for sockets fixes the issue.
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Marcel Apfelbaum <marcel.a@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
The QEMU process stays running if the test case fails. This patch fixes
the leak by installing a SIGABRT signal handler which invokes
qtest_end().
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
qtest_init() cannot use exec*p() to launch QEMU since the exec*p()
functions take an argument array while qtest_init() takes char
*extra_args. Therefore we execute /bin/sh -c <command-line> and let the
shell parse the argument string.
This left /bin/sh as our child process and our child's child was QEMU.
We still want QEMU's pid so the -pidfile option was used to let QEMU
report its pid.
The pidfile needs to be unlinked when the test case exits or fails. In
other words, the pidfile creates a new problem for us!
Simplify all this using the shell 'exec' command. It allows us to
replace the /bin/sh process with QEMU. Then we no longer need to use
-pidfile because we already know our fork child's pid.
Note: Yes, it seems silly to exec /bin/sh when we could just exec QEMU
directly. But remember qtest_init() takes a single char *extra_args
command-line fragment instead of a real argv[] array, so we need
/bin/sh's argument parsing behavior.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
UNIX domain sockets are leaked when tests call abort(3) (indirectly via
glib assert functions).
Unlink the files immediately after the connection has been established
to avoid leaks.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
After starting the QEMU process and initializing the QMP connection, we
can read the pid file and unlink it.
Just stash away the pid instead of the pid filename. This way we can
avoid pid file leaks since running tests may abort(3) without cleanup.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This avoids each test needing to add it to suppress windows popping up.
[Commit 7ceeedd016 ("blockdev-test: add
test case for drive_add duplicate IDs") and commit
43cd209803 ("qdev-monitor-test: add
device_add leak test cases") added qtest tests without specifying
-display none.
As a result, "make check" now tries to use graphics (GTK or SDL). Since
graphics are not used by the test and inappropriate for headless "make
check" runs, add the missing -display none.
This fixes "make check" in the QEMU buildbot.
-- Stefan]
Signed-off-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Add a qtest qmp() function that returns the response object. This
allows test cases to verify the result or to check for error responses.
It also allows waiting for QMP events.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Andreas Färber <afaerber@suse.de>
Existing qmp() callers do not expect a response object. In order to
implement real QMP test cases it will be necessary to inspect the
response object.
Rename qmp() to qmp_discard_response(). Later patches will introduce a
qmp() function that returns the response object and tests that use it.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Andreas Färber <afaerber@suse.de>
Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Andreas Färber <afaerber@suse.de>
Message-id: 1371711329-9144-2-git-send-email-armbru@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
libqtest.c can segfault when calling fclose() if the pidfile wasn't
opened successfully. This patch fixes the issue.
Signed-off-by: Jesse Larrew <jlarrew@linux.vnet.ibm.com>
Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
Message-id: 1367250772-17928-1-git-send-email-jlarrew@linux.vnet.ibm.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Currently we waitpid on the child process we spawn off that does
nothing more than system() another process. While this does not
appear to be incorrect, it's wasteful and confusing so get rid of
it.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Message-id: 1366123521-4330-2-git-send-email-aliguori@us.ibm.com
Introduce [qtest_]{read,write}[bwlq]() libqtest functions and
corresponding QTest protocol commands to replace local versions in
libi2c-omap.c.
Also convert m48t59-test's cmos_{read,write}_mmio() to {read,write}b().
Signed-off-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Message-id: 1361051043-27944-4-git-send-email-afaerber@suse.de
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
In order to convert qmp() macro to an inline function, expose a
qtest_qmpv() function, reused by qtest_qmp().
We can't apply GCC_FMT_ATTR() since fdc-test is using zero-length format
strings, which would result in warnings treated as errors.
Signed-off-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Message-id: 1361051043-27944-3-git-send-email-afaerber@suse.de
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
When running "make check" with gcov enabled, we get the following
message:
hw/tmp105.gcda:cannot open data file, assuming not executed
The problem happens because:
* tmp105-test exits before QEMU exits, because waitpid() at
qtest_quit() fails;
* waitpid() fails because there's another process already
waiting for the QEMU process;
* The process that is already waiting for QEMU is the child created by
qtest_init() to run system();
* qtest_quit() is incorrectly waiting for the QEMU PID directly instead
of the child created by qtest_init().
This fixes the problem by sending SIGTERM to QEMU, but waiting for the
child process created by qtest_init() (that exits immediately after QEMU
exits).
Reported-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
It is quite difficult to debug qtest test cases without extra wrapper
scripts for QEMU or similar. This patch adds a simple environment
variable-based trigger that sends a STOP signal to the QEMU instance
under test, before attempting to connect to its QMP session.
This will block execution of the testcase and give time to attach a
debugger to the stopped QEMU process.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Each test litters /tmp with several files: a pid file and two
sockets. Tidy up.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
From Markus:
Makes "make check" hang:
QTEST_QEMU_BINARY=x86_64-softmmu/qemu-system-x86_64 gtester -k --verbose -m=quick tests/crash-test tests/rtc-test
TEST: tests/crash-test... (pid=972)
qemu-system-x86_64: Device needs media, but drive is empty
[Nothing happens, wait a while, then hit ^C]
make: *** [check-qtest-x86_64] Interrupt
This was due to the fact that we weren't checked for errors when
reading from the QMP socket. This patch adds appropriate error
checking.
Reported-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
accept() expects address_len to point to the length of the sockaddr on
input. Initialize it accordingly.
Resolves an assertion due to EFAULT on illumos.
Signed-off-by: Andreas Färber <andreas.faerber@web.de>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
After adding GCC_FMT_ATTR to qtest_sendf, more format errors are reported
by the compiler. These are fixed here.
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Use PRIx64 to print 64 bit values to avoid truncation
on 32 bit hosts.
Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
This also includes a qtest wrapper script to make it easier to launch qtest
tests directly.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
