Mathieu Desnoyers [Thu, 21 Mar 2013 02:41:42 +0000 (22:41 -0400)]
tracepoint: move "probe" test outside of loop
This is a slow-path optimisation.
Reported-by: Sahara <keun-o.park@windriver.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Wed, 20 Mar 2013 20:07:07 +0000 (16:07 -0400)]
Fix uninitialized has_loglevel variable
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Wed, 20 Mar 2013 19:44:55 +0000 (15:44 -0400)]
Fix clang warnings
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Wed, 20 Mar 2013 19:27:41 +0000 (15:27 -0400)]
Cleanup: work-around clang unused result warning
Not useful for CHAN_WARN_ON() macro.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Wed, 20 Mar 2013 18:07:17 +0000 (14:07 -0400)]
Cleanup compile warning
ustctl.c: In function 'ustctl_init':
ustctl.c:1772:2: warning: implicit declaration of function
'lttng_ring_buffer_client_overwrite_rt_init'
[-Wimplicit-function-declaration]
ustctl.c:1774:2: warning: implicit declaration of function
'lttng_ring_buffer_client_discard_rt_init'
[-Wimplicit-function-declaration]
ustctl.c: In function 'ustctl_exit':
ustctl.c:1781:2: warning: implicit declaration of function
'lttng_ring_buffer_client_discard_rt_exit'
[-Wimplicit-function-declaration]
ustctl.c:1783:2: warning: implicit declaration of function
'lttng_ring_buffer_client_overwrite_rt_exit'
[-Wimplicit-function-declaration]
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Wed, 20 Mar 2013 18:07:03 +0000 (14:07 -0400)]
Cleanup: remove unused variables
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Wed, 20 Mar 2013 18:02:38 +0000 (14:02 -0400)]
tracepoint: Don't add NULL probes
Reported-by: Sahara <keun-o.park@windriver.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Jérémie Galarneau [Tue, 19 Mar 2013 20:43:32 +0000 (16:43 -0400)]
Remove mention of locking issues associated with dlopen usage
This notice has been removed from the README as part of revision
b834dead.
Add a warning relating to dlclose() usage detailed in issue 447 in both
the man page and the README file.
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Mon, 11 Mar 2013 14:12:40 +0000 (10:12 -0400)]
Implement read timer (for RT)
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Sat, 9 Mar 2013 17:05:19 +0000 (12:05 -0500)]
Only flush when there are readers active
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Sat, 9 Mar 2013 16:56:25 +0000 (11:56 -0500)]
Add mutex for channel wakeup fd update
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Thu, 7 Mar 2013 16:55:01 +0000 (11:55 -0500)]
Fix: fields should be initialized to NULL
Fixes uninitialized pointer free.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Wed, 6 Mar 2013 23:18:59 +0000 (18:18 -0500)]
Implement ustctl_duplicate_ust_object_data
Allow sessiond to duplicate its object data. Useful for per-uid buffers.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Wed, 6 Mar 2013 21:11:44 +0000 (16:11 -0500)]
Add channel wakeup fd to monitor close
Add channel wakeup fd, so consumer can keep its handle on the stream
wakeup_fd (for periodic timer flush), and yet still discover that an
application has closed a channel or exited.
Requires to be updated in locked-step with lttng-tools
"Add channel wakeup fd to monitor close"
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Wed, 6 Mar 2013 15:07:12 +0000 (10:07 -0500)]
Fix: refcount issue in lttng-ust-abi.c
The following scenario could lead to a segmentation fault in
applications when the sessiond disappears or when the application try to
exit. This is caused by incorrect handling of reference counts.
This can happen in very particular race scenario, described as follows:
1) The sessiond asks for "release" of one or more objects (e.g. a
session object), but _without_ asking for release of _all_ objects
referencing the session.
2) The application exits, thus calling objd_table_destroy(). It walks on
all objects, decrementing their reference count, freeing memory when
their reference count reaches "1".
However, here is the issue: since "release" has already been performed
by sessiond on the session object, this extra reference count unref
performed by objd_table_destroy() can make the session object disappear
while it is still needed by either the channel object or the enabler
object. Therefore, we can experience a segmentation fault when we try to
unref and free the channel or enabler objects within
objd_table_destroy().
Fix this issue by adding the concept of an "owner reference". Only
objd_table_destroy(), lttng_ust_objd_table_owner_cleanup(), "release"
commands, and failure paths of object creation are allowed to decrement
the owner reference. We restrict objd_table_destroy() and
lttng_ust_objd_table_owner_cleanup() to _only_ decrement refcount of
objects _if_ their owner reference is still held.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Wed, 6 Mar 2013 01:56:05 +0000 (20:56 -0500)]
Fix: only consumerd should print errors
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Wed, 6 Mar 2013 01:03:37 +0000 (20:03 -0500)]
Implement ring buffer periodic buffer switch timer
The tricky part was the teardown. It must not race against neither
pending signals nor in-flight signal handler execution, otherwise the
timer handler could access freed channel data. Use a dedicated thread to
handle those signals, with a synchronization point between each handler
execution.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Tue, 5 Mar 2013 22:04:44 +0000 (17:04 -0500)]
Fix: ensure all probe providers have their symbols
Following the removal of metadata generation from UST, the probes cannot
find the tracepoint_dlopen() symbol. Ensure those probes can be built by
declaring this symbol within each probe.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Tue, 5 Mar 2013 20:17:22 +0000 (15:17 -0500)]
Reactivate error printing
Print errors at buffer teardown if LTTNG_UST_DEBUG=1 is set (env. var.)
when launching the consumerd. This is possible now that consumerd owns
the buffers.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Mon, 4 Mar 2013 00:41:24 +0000 (19:41 -0500)]
Unregister tracepoint probes when not needed
Ensure tracepoint probes are only connected when we meet these
conditions:
at least one enabler enables event && session active && channel enabled
We introduce a "tstate" flag in addition to "active/enabled".
Active and enabled fields are used to atomically enable/disable session
and channel, whereas the tstate flag is a "transient state" enable
state. It is used to update all events following a state change
transition. The actual effect of the state transition is committed
atomically with store to active/enabled flag.
Upon enable, we do:
tstate = 1
update all events
enable = 1;
Upon disable, we do the opposite:
enable = 0;
tstate = 0;
update all events
The purpose of this scheme is to allow atomic enable/disable of events
while allowing per-event probe registration to be performed
non-atomically.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Sun, 3 Mar 2013 23:22:36 +0000 (18:22 -0500)]
Cleanup: remove now unused metadata code from UST
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Fri, 1 Mar 2013 17:57:39 +0000 (12:57 -0500)]
Fix: notification timeout logic
-1: wait forever
0 to 10ms: wait for 10ms
+10ms: wait for the specified amount.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Fri, 1 Mar 2013 16:54:31 +0000 (11:54 -0500)]
Fix: don't print error in comm proto connect on ENOENT
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Fri, 1 Mar 2013 16:45:45 +0000 (11:45 -0500)]
Fix: return expected error return values for sessiond
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Fri, 1 Mar 2013 16:26:12 +0000 (11:26 -0500)]
Fix: set wait/wake fd to -1 before close
Else triggers double-close race.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Thu, 28 Feb 2013 22:18:06 +0000 (17:18 -0500)]
Fix: Only notify socket should have timeout/nonblock
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Thu, 28 Feb 2013 18:03:44 +0000 (13:03 -0500)]
Fix: ustctl: return -EPIPE to sessiond if connection is closed
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Wed, 27 Feb 2013 22:24:26 +0000 (17:24 -0500)]
Fix: Add timeout on notification socket
Use the constructor timeout value. If an error occurs, shutdown() is
called on the socket, so the following attempts to use this socket will
fail very quickly.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Tue, 26 Feb 2013 20:47:53 +0000 (15:47 -0500)]
Remove now unused metadata printf code
Metadata is now generated by sessiond.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Tue, 26 Feb 2013 19:32:52 +0000 (14:32 -0500)]
Move metadata creation into lttng-sessiond and lttng-consumed
Includes fixes in type serialization. Also stop sending metadata channel
events.
Need to be applied in locked-step with lttng-tools commit:
"Move metadata creation into lttng-sessiond and lttng-consumed"
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Mon, 25 Feb 2013 19:05:15 +0000 (14:05 -0500)]
Add write metadata API to ust-ctl.h
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Mon, 11 Feb 2013 23:00:34 +0000 (18:00 -0500)]
Move UST registry into sessiond and implement notifiers
Needs to be use in locked-step with lttng-tools
"Move UST registry into sessiond and implement notifiers" commit.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Wed, 27 Feb 2013 21:39:30 +0000 (16:39 -0500)]
Fix: don't flush-final for offset 0 if reader is on sub-buffer
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Tue, 26 Feb 2013 20:25:18 +0000 (15:25 -0500)]
Use tp rcu link test in provider
Ensure we never trigger a null pointer exception.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Tue, 26 Feb 2013 20:16:57 +0000 (15:16 -0500)]
Remove direct dependency of probes on urcu-bp
The filter feature added a direct dependency of probes providers against
urcu-bp .so, while linking them against liblttng-ust should suffice. Fix
this by using the tracepoint.h wrapper for rcu_dereference().
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Thu, 21 Feb 2013 15:55:52 +0000 (10:55 -0500)]
Use urcu tls-compat.h
We can use the URCU_TLS() compatibility layer from userspace RCU to
support some BSD flavors that do not support __thread.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Tue, 19 Feb 2013 15:43:10 +0000 (10:43 -0500)]
Lazy provider registration
Register probe providers lazily, so process startup time is not impacted
by the number of events (especially for large number of events) as long
as no UST tracing session is active.
Refs #446
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Tue, 19 Feb 2013 14:54:05 +0000 (09:54 -0500)]
Always use lttng_get_probe_list_head to get probe list
Prepare lazy probe registration.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Mon, 18 Feb 2013 20:12:51 +0000 (15:12 -0500)]
Fix static build
Move init_usterr() to snprintf, along with its ust_loglevel state.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Tue, 29 Jan 2013 22:40:18 +0000 (17:40 -0500)]
Move LTTng-UST buffer ownership from application to consumer
Before this change, applications were performing allocation and teardown
of their buffers. Applications therefore had ownership of the buffers.
The shm and wait fd were passed from applications, though sessiond, to
consumerd through unix sockets.
This change moves ownership of buffers from applications to consumer.
This will allow sharing buffers across many processes in a near future.
It will also facilitate implementation of periodical timers on the
consumer side, now that it has ownership of channels and buffers
(also called streams). This imply that file descriptors on shm and
wakeup end of the pipe are now passed from the consumerd to sessiond,
then to applications, through unix sockets. Then, applications "map"
channel and streams into their own memory space. Channel control
structure is actually a copy for each application, while streams are a
shared memory map (shm) between consumerd and all applications that
write into it, and have a wake up file descriptor on the application
side.
Dependency on libuuid is now removed from lttng-ust, and moved to
lttng-tools, since the UUID is needed at channel and buffer allocation.
This commit needs to be used along with commit named
"Move LTTng-UST buffer ownership from application to consumer" in
lttng-tools.
Reviewed-by: David Goulet <dgoulet@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Fri, 15 Feb 2013 13:19:59 +0000 (08:19 -0500)]
Fix package: don't distribute generated headers
Fixes #421
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Thu, 14 Feb 2013 19:46:53 +0000 (14:46 -0500)]
Fix: don't cancel already exited threads
Ensure we don't issue pthread_cancel() on already exited threads.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Tue, 12 Feb 2013 19:25:28 +0000 (14:25 -0500)]
Scalability fix: tracepoint.c hash table size increase
Speed up process startup for applications with large number of
tracepoints (e.g. 16k in J9 vm) by increasing the tracepoint.c hash
table size from 64 to 4096.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Tue, 12 Feb 2013 19:20:05 +0000 (14:20 -0500)]
Scalability fix for many events: event hash table size
Increase number of buckets for event hash table (per session) from 64 to
4096. This improves process startup time for J9 vm (with 16k
tracepoints) very significantly.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Wed, 6 Feb 2013 21:56:16 +0000 (16:56 -0500)]
Speed up probe registration for large amount of events
LTTng-UST probe registration is O(n^2). I actually left a comment that
describes this, also implying that we can improve this if it becomes an
issue.
I've had a report from Yang Wang, who works on instrumenting the J9 VM,
that O(n^2) does not agree well with 16000 probes and tracepoints.
It appears that lttng_probe_register() is being too paranoid for its own
good. There are now many things that are guaranteed by the way probe
providers are being built.
We actually need to keep a check that no provider with the same name has
been registered (O(n) on the number of registered providers, could be
improved with a hash table if it ever becomes necessary).
Use an assert to check that each event name starts with its own provider
name (it would be an internal error within the provider if it's not the
case). (O(n) on the number of events within a provider)
The rest is just useless, so remove this O(n^2) check.
While we are there, remove the now unused
lttng_event_get()/lttng_event_put() functions.
Reported-by: Yang Wang <yangw.wang5@unb.ca>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Thu, 31 Jan 2013 19:59:11 +0000 (14:59 -0500)]
Add missing demo-trace shell script to dist tarball
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Thu, 31 Jan 2013 19:26:30 +0000 (14:26 -0500)]
Documentation: add uuid package name for Fedora in README
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Fri, 25 Jan 2013 15:11:18 +0000 (10:11 -0500)]
Fix: missing test for lttng_ust_comm_should_quit in lttng-ust-comm.c
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Simon Marchi [Thu, 24 Jan 2013 20:42:18 +0000 (15:42 -0500)]
Add compilation support for Tile architectures
Also add missing space on the mips line for OCD purposes.
Signed-off-by: Simon Marchi <simon.marchi@polymtl.ca>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Mon, 21 Jan 2013 17:11:12 +0000 (12:11 -0500)]
Documentation: clarify debian package name for uuid in README
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Mon, 21 Jan 2013 16:58:55 +0000 (11:58 -0500)]
Fix: comment in ust-ctl.h
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Mon, 21 Jan 2013 15:56:33 +0000 (10:56 -0500)]
Fix I/O-related error values in ustctl
These internal ustctl API members document >=0 as OK values. Make sure
reply recv errors are returned as errors.
Clarify ustctl_create_stream() error values.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Acked-by: David Goulet <dgoulet@efficios.com>
Mathieu Desnoyers [Wed, 16 Jan 2013 17:56:09 +0000 (12:56 -0500)]
Introduce hash table for lttng_create_event_if_missing()
lttng_create_event_if_missing() takes a lot of CPU time with stress-test
applications containing 1000 different TRACEPOINT_EVENT() and 1000
individual tracepoint() call-site.
With tracing disabled:
time ./AppWith1000_lines_TP 0
real 0m2.487s
user 0m2.424s
sys 0m0.000s
Introducing this hash table cuts the overhead very significantly when
tracing is enabled:
Before patch:
72.16% AppWith1000_lin liblttng-ust.so.0.0.0 [.] lttng_create_event_if_missing
25.64% AppWith1000_lin AppWith1000_lines_TP [.] a(int)
time ./AppWith1000_lines_TP 0
real 0m7.946s
user 0m7.864s
sys 0m0.000s
After patch:
89.13% AppWith1000_lin AppWith1000_lines_TP [.] a(int)
3.30% AppWith1000_lin liblttng-ust.so.0.0.0 [.] lttng_create_event_if_missing
time ./AppWith1000_lines_TP 0
real 0m2.762s
user 0m2.692s
sys 0m0.004s
Acked-by: David Goulet <dgoulet@efficios.com>
Acked-by: Christian Babeux <christian.babeux@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Samuel Martin [Sun, 13 Jan 2013 16:40:10 +0000 (11:40 -0500)]
Fix: don't build C++ example if a C++ compiler isn't available
By default lttng-ust builds a hello.cxx C++ example that demonstrates
the usage of the userspace tracing library in a C++ program.
Unfortunately, when no C++ support is available, the build of lttng-ust
fails just because of this example code. So we make the compilation of
this code conditional on whether a working C++ compiler was found.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Samuel Martin <s.martin49@gmail.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Simon Marchi [Wed, 9 Jan 2013 20:41:52 +0000 (15:41 -0500)]
Remove LIBFORMAT output in configure.
Signed-off-by: Simon Marchi <simon.marchi@polymtl.ca>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Thu, 20 Dec 2012 19:01:33 +0000 (14:01 -0500)]
Document dependency on libuuid
Fixes #418
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Thu, 20 Dec 2012 18:24:28 +0000 (13:24 -0500)]
Version 2.1.0
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Thu, 20 Dec 2012 17:32:15 +0000 (12:32 -0500)]
Bump liblttng-ust-ctl lib version major number
This internal library between ust and tools has had its ABI changed
between 2.0 and 2.1.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Thu, 20 Dec 2012 15:44:05 +0000 (10:44 -0500)]
Bump UST proto version minor number
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Thu, 20 Dec 2012 00:33:44 +0000 (19:33 -0500)]
Helper to debug: add object name
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Christian Babeux [Wed, 19 Dec 2012 19:41:43 +0000 (14:41 -0500)]
Tests: Fix rundir not created in ust-basic-tracing
Signed-off-by: Christian Babeux <christian.babeux@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Wed, 19 Dec 2012 19:39:00 +0000 (14:39 -0500)]
ust test: add missing return -1
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Wed, 19 Dec 2012 19:37:14 +0000 (14:37 -0500)]
Test: update ust tracing unit tests to 2.1 internal ABI
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Christian Babeux [Wed, 19 Dec 2012 19:22:27 +0000 (14:22 -0500)]
Tests: Fix rundir not created in ust-multi-test
Signed-off-by: Christian Babeux <christian.babeux@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Mon, 17 Dec 2012 20:50:31 +0000 (15:50 -0500)]
Adapt internal files and examples to TRACEPOINT_INCLUDE
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Mon, 17 Dec 2012 20:46:11 +0000 (15:46 -0500)]
Adapt tests to TRACEPOINT_INCLUDE
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Mon, 17 Dec 2012 20:43:22 +0000 (15:43 -0500)]
Cleanup: tests remove hello.cxx/ust_tests_demo.h
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Mon, 17 Dec 2012 20:36:08 +0000 (15:36 -0500)]
Fix: don't do macro expansion in tracepoint file name
Change the API in a backward compatible way: previously, probe headers
would do e.g.
but e.g. "linux" here would be expanded to "1", which is bad.
Fix this by allowing those headers to do:
instead. We still support the old TRACEPOINT_INCLUDE_FILE for backward
compatibility.
Reported-by: Sébastien Barthélémy <barthelemy@crans.org>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Christian Babeux [Fri, 14 Dec 2012 01:36:32 +0000 (20:36 -0500)]
Fix lttng-gen-tp: Template file must end in .tp
Fixes #297
Signed-off-by: Christian Babeux <christian.babeux@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Thu, 13 Dec 2012 22:01:05 +0000 (17:01 -0500)]
Pack structures in comm protocol between UST and sessiond
Ensure robustness with respect to 32-bit vs 64-bit apps vs sessiond.
Since we are updating the ABI, change the order of overwrite field in
channel and channel attributes, to remove some unneeded padding.
This breaks compatibility between sessiond 2.1 and ust 2.0 (and
vice-versa), but sessiond refuses applications with version number that
does not match.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Christian Babeux [Thu, 13 Dec 2012 21:06:12 +0000 (16:06 -0500)]
Cleanup lttng-gen-tp: Help not showing when using -h,--help
Fixes #299
Signed-off-by: Christian Babeux <christian.babeux@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Thu, 13 Dec 2012 20:05:26 +0000 (15:05 -0500)]
Cleanup lttng-gen-tp: remove leading underscore before include guard
Fixes #298
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Mon, 10 Dec 2012 20:33:05 +0000 (15:33 -0500)]
fix memleak: ustctl free shadow chan on ustctl_unmap_channel()
Also on error path within map channel.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Wed, 5 Dec 2012 13:11:32 +0000 (08:11 -0500)]
Update license text
- Add LICENSE file
- all public headers are now under MIT license,
- add missing text from MIT license into each file using this license.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Tue, 4 Dec 2012 12:30:04 +0000 (07:30 -0500)]
Fix: check if event enabled for bytecode-less events
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Mon, 3 Dec 2012 15:11:24 +0000 (10:11 -0500)]
Fix: handle enablers without bytecode
to reproduce issue with the upstream "hello" program:
lttng create
lttng enable-event -u -a --filter 'intfield==42'
lttng enable-event -u -a
lttng start
./hello
lttng stop
lttng view
only shows event with 42 intfield. We expect all events.
Fixes #406
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Mon, 26 Nov 2012 20:14:24 +0000 (15:14 -0500)]
Print probe provider mismatch error even without -Wsystem-headers
Suggested-by: David OShea <David.OShea@quantum.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Thu, 22 Nov 2012 19:41:13 +0000 (14:41 -0500)]
filter: Add missing padding
This will make future extensions to filter much easier.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Thu, 22 Nov 2012 19:03:53 +0000 (14:03 -0500)]
Version 2.1.0-rc2
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Thu, 22 Nov 2012 18:50:34 +0000 (13:50 -0500)]
filter interpreter cleanup: use uint64_t for retval
Reported-by: Christian Babeux <christian.babeux@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Thu, 22 Nov 2012 17:28:49 +0000 (12:28 -0500)]
Fix: filter linking can dereference NULL pointer on alloc failure
Reported-by: Christian Babeux <christian.babeux@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Thu, 22 Nov 2012 16:05:13 +0000 (11:05 -0500)]
Cleanup: remove whitespaces and EOL in tests
Reviewed-by: David Goulet <dgoulet@efficios.com>
Reviewed-by: Christian Babeux <christian.babeux@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Tue, 20 Nov 2012 21:21:18 +0000 (16:21 -0500)]
Filter: use only single lower bit of filter return value
Implementation change: use a uint64_t as filter return value, and test
with a mask for this bit. This reserves other bits for future use.
Reviewed-by: David Goulet <dgoulet@efficios.com>
Reviewed-by: Christian Babeux <christian.babeux@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Fri, 16 Nov 2012 22:20:09 +0000 (17:20 -0500)]
Fix: filter: var len array at end of external structure
Reviewed-by: David Goulet <dgoulet@efficios.com>
Reviewed-by: Christian Babeux <christian.babeux@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Fri, 16 Nov 2012 20:53:09 +0000 (15:53 -0500)]
Fix: filter link fail handling
Reviewed-by: David Goulet <dgoulet@efficios.com>
Reviewed-by: Christian Babeux <christian.babeux@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Fri, 16 Nov 2012 20:26:10 +0000 (15:26 -0500)]
Fix: add missing seqnum field to filter
Reviewed-by: David Goulet <dgoulet@efficios.com>
Reviewed-by: Christian Babeux <christian.babeux@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Fri, 16 Nov 2012 16:17:21 +0000 (11:17 -0500)]
filters: perform union rather than intersection
Reviewed-by: David Goulet <dgoulet@efficios.com>
Reviewed-by: Christian Babeux <christian.babeux@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Fri, 16 Nov 2012 15:19:32 +0000 (10:19 -0500)]
Implement support for overlapping wildcard/events
Reviewed-by: David Goulet <dgoulet@efficios.com>
Reviewed-by: Christian Babeux <christian.babeux@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Mon, 12 Nov 2012 21:40:06 +0000 (16:40 -0500)]
Cleanup: add lttng_/lttng-/LTTNG_ prefixes
ltt_event -> lttng_event mass rename
Rename ltt_chan -> lttng_chan
Rename ltt_session -> lttng_session
Rename enum abstract_types to enum lttng_abstract_types
Rename ltt_transport to lttng_transport
Rename rest of ltt_ prefixes to lttng_
Complete file and symbol renames from LTT/ltt to LTTNG/lttng
Finish ltt->lttng symbol conversion
Reviewed-by: David Goulet <dgoulet@efficios.com>
Reviewed-by: Christian Babeux <christian.babeux@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Mon, 12 Nov 2012 21:14:20 +0000 (16:14 -0500)]
filter: add seqnum field to filter command
Reviewed-by: David Goulet <dgoulet@efficios.com>
Reviewed-by: Christian Babeux <christian.babeux@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Mon, 12 Nov 2012 20:55:27 +0000 (15:55 -0500)]
Filter iteration: iterate on list of filters
Reviewed-by: David Goulet <dgoulet@efficios.com>
Reviewed-by: Christian Babeux <christian.babeux@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Tue, 20 Nov 2012 16:38:21 +0000 (11:38 -0500)]
document that tracepoint names should ideally not be re-used
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Mon, 12 Nov 2012 20:40:15 +0000 (15:40 -0500)]
Remove LIBFORMAT config declaration, unused
Remove leftover from UST 0.x. Not needed anymore.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
David Goulet [Fri, 9 Nov 2012 18:20:46 +0000 (13:20 -0500)]
Add libc errno translation layer to UST error code
Also add four new possible code being EEXIST, EINVAL, ENOSYS and EPERM.
Signed-off-by: David Goulet <dgoulet@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Wed, 7 Nov 2012 20:23:56 +0000 (15:23 -0500)]
Revert "Fix: configure.ac should use "--target", not "--host""
This reverts commit
98c8a1d90d1052980365353eef201124863128b0.
No. --target is for building cross-compilers. --host was appropriate.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Wed, 7 Nov 2012 20:08:33 +0000 (15:08 -0500)]
Fix: configure.ac should use "--target", not "--host"
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Wed, 7 Nov 2012 20:08:02 +0000 (15:08 -0500)]
Fix: add const qualifier for filter local void *
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Wed, 7 Nov 2012 18:24:58 +0000 (13:24 -0500)]
Fix: re-allow non-lvalue string, sequence, array parameters
Issue introduced by upstream commit:
commit
27f4b6094f399f2fe231b58801dce98cbd21baa9
Author: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Date: Tue Sep 4 12:17:07 2012 -0400
Fix filter: pointer to string, not string, should be on stack
Fixes #329
Reported-by: David Bryant <david.bryant@quantum.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Tue, 6 Nov 2012 21:39:52 +0000 (16:39 -0500)]
Tear down handles associated with a closed sessiond socket
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Tue, 6 Nov 2012 18:40:47 +0000 (13:40 -0500)]
Distinguish UST return codes from transport return codes
One API change visible from lttng-tools: -ENOENT return values for
tracepoint list and tracepoint field list are now -LTTNG_UST_ERR_NOENT.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
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