Commit Graph

13 Commits

Author SHA1 Message Date
Markus Armbruster 2ec62faea2 log: Plug memory leak on multiple -dfilter
-dfilter overwrites any previous filter.  The overwritten filter is
leaked.  Leaks since the beginning (commit 3514552, v2.6.0).  Free it
properly.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <1466011636-6112-2-git-send-email-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
2016-06-20 16:38:14 +02:00
Paolo Bonzini f2937a33a5 log: do not use CONFIG_USER_ONLY
This decouples logging further from config-target.h

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-05-19 13:08:04 +02:00
Denis V. Lunev 99affd1d5b log: move qemu_log_close/qemu_log_flush from header to log.c
There is no particular reason to keep these functions in the header.
Suggested by Paolo.

Signed-off-by: Denis V. Lunev <den@openvz.org>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 1458128212-4197-3-git-send-email-den@openvz.org
CC: Stefan Hajnoczi <stefanha@redhat.com>
CC: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2016-03-31 09:58:32 +01:00
Alex Bennée f6880b7f48 qemu-log: support simple pid substitution for logs
When debugging stuff that occurs over several forks it would be useful
not to keep overwriting the one logfile you've set-up. This allows a
simple %d to be included once in the logfile parameter which is
substituted with getpid().

As the test cases involve checking user output they need
g_test_trap_subprocess() support. As a result they are currently skipped
on Travis builds due to the older glib involved.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Leandro Dorileo <l@dorileo.org>
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Reviewed-by: Richard Henderson  <rth@twiddle.net>
Message-Id: <1458052224-9316-10-git-send-email-alex.bennee@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-03-22 22:20:18 +01:00
Alex Bennée 3514552e04 qemu-log: new option -dfilter to limit output
When debugging big programs or system emulation sometimes you want both
the verbosity of cpu,exec et all but don't want to generate lots of logs
for unneeded stuff. This patch adds a new option -dfilter which allows
you to specify interesting address ranges in the form:

  -dfilter 0x8000..0x8fff,0xffffffc000080000+0x200,...

Then logging code can use the new qemu_log_in_addr_range() function to
decide if it will output logging information for the given range.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <1458052224-9316-7-git-send-email-alex.bennee@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-03-22 22:20:18 +01:00
Peter Maydell 7ee606230e qemu-log: Avoid function call for disabled qemu_log_mask logging
Make qemu_log_mask() a macro which only calls the function to
do the actual work if the logging is enabled. This avoids making
a function call in possible fast paths where logging is disabled.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-03-22 22:20:18 +01:00
Alex Bennée 541957361e qemu-log: correct help text for -d cpu
This doesn't just dump CPU state on translation but on every block
entrance.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Andreas Färber <afaerber@suse.de>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Message-Id: <1458052224-9316-4-git-send-email-alex.bennee@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-03-22 22:20:17 +01:00
Paolo Bonzini c586eac336 log: do not log if QEMU is daemonized but without -D
Commit 96c33a4 ("log: Redirect stderr to logfile if deamonized",
2016-02-22) wanted to move stderr of a daemonized QEMU to the file
specified with -D.

However, if -D was not passed, the patch had the side effect of not
redirecting stderr to /dev/null.  This happened because qemu_logfile
was set to stderr rather than the expected value of NULL.  The fix
is simply in the "if" condition of do_qemu_set_log; the "if" for
closing the file is also changed to match.

Reported-by: Jan Tomko <jtomko@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-03-07 13:18:28 +01:00
Dimitris Aragiorgis 96c33a4523 log: Redirect stderr to logfile if deamonized
In case of daemonize, use the logfile passed with the -D option in
order to redirect stderr to it instead of /dev/null.

Also remove some unused code in log.h.

Signed-off-by: Dimitris Aragiorgis <dimara@arrikto.com>
Message-Id: <1455795518-19205-1-git-send-email-dimara@arrikto.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-02-22 18:40:29 +01:00
Peter Maydell d38ea87ac5 all: Clean up includes
Clean up includes so that osdep.h is included first and headers
which it implies are not included manually.

This commit was created with scripts/clean-includes.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1454089805-5470-16-git-send-email-peter.maydell@linaro.org
2016-02-04 17:41:30 +00:00
Paolo Bonzini c84ea00dc2 log: add "-d trace:PATTERN"
This is a bit easier to use than "-trace" if you are also enabling
other kinds of logging.  It is also more discoverable for experienced
QEMU users, and accessible from user-mode emulators.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Denis V. Lunev <den@openvz.org>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Message-id: 1452174932-28657-12-git-send-email-den@openvz.org
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2016-02-03 10:37:50 +00:00
Paolo Bonzini ed7f5f1d8d trace: convert stderr backend to log
[Also update .travis.yml --enable-trace-backends=stderr
--Stefan]

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Denis V. Lunev <den@openvz.org>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Message-id: 1452174932-28657-10-git-send-email-den@openvz.org
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2016-02-03 10:37:10 +00:00
Denis V. Lunev d890d50d18 log: move qemu-log.c into util/ directory
log will become common facility with tracepoints support in next step.

Signed-off-by: Denis V. Lunev <den@openvz.org>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 1452174932-28657-9-git-send-email-den@openvz.org
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2016-02-03 09:19:10 +00:00