Mathieu Desnoyers [Tue, 10 Jun 2014 16:17:08 +0000 (12:17 -0400)]
Fix: multiple providers in same C file failure
If we have a C file in an application that is meant to contain both the
instrumentation and the provider, build fails if we have more than one
provider.
Fixed by putting back definitions to the state they were when defined by
tracepoint.h after a probe provider is created. This allows the next
tracepoint provider to define its tracepoints.
Fixes #805
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
David Goulet [Tue, 27 May 2014 15:03:42 +0000 (11:03 -0400)]
Fix: out of tree build for lib Java and JUL
Reported-by: Daniel Olivier <daniel.olivier@ericsson.com>
Signed-off-by: David Goulet <dgoulet@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Fri, 23 May 2014 13:27:01 +0000 (09:27 -0400)]
Fix: refuse overwrite mode buffers with less than two subbuffers
Fixes #793
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
David Goulet [Wed, 7 May 2014 15:33:41 +0000 (11:33 -0400)]
Fix: remove JUL loglevel filtering from the agent
The loglevel filtering is now done on the UST side setup by
liblttng-ctl. To achieve that, the agent has a new structure to support
two semantic concepts being a LTTng event and a JUL logger that have a
relation of N:1. This addition does not impact the current interfaces of
the agent.
Signed-off-by: David Goulet <dgoulet@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
David Goulet [Tue, 6 May 2014 15:56:25 +0000 (11:56 -0400)]
Fix: cleanup JUL agent state on sessiond disconnect
Signed-off-by: David Goulet <dgoulet@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Jérémie Galarneau [Wed, 7 May 2014 15:41:46 +0000 (11:41 -0400)]
Fix: Move generated headers to the BUILT_SOURCES target
This fixes the out of tree build when enabling Java support. The
problem in using an LTTngUst.c target is that automake will then
assume the file is generated and thus be found in the builddir.
Using the BUILT_SOURCES target will ensure the
org_lttng_ust_LTTngUst.h and org_lttng_ust_jul_LTTngUst.h headers
are generated before LTTngUst.c is compiled.
Tested-by: David Goulet <dgoulet@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Adrien Vergé [Fri, 25 Apr 2014 16:12:24 +0000 (12:12 -0400)]
Fix linking failure when cross-compiling
Examples binaries in doc/examples require libs in liblttng-ust/.libs/,
and those libs require other libs in the same directory. For instance
liblttng-ust.so uses liblttng-ust-tracepoint.so symbols, so the latter
is needed to properly link example programs. Currently, ld is given
the lib dir only via -rpath (used for linking executables dependencies)
but not via -rpath-link (used for linking libs dependencies).
When compiling regularly, this does not seem to be a problem (maybe ld
is smart enough). However when cross-compiling with the
arm-linux-gnueabihf toolchain, -rpath-link is needed otherwise linking
fails with:
arm-linux-gnueabihf/bin/ld: warning: liblttng-ust-tracepoint.so.0, needed by ../../../liblttng-ust/.libs//liblttng-ust.so, not found (try using -rpath or -rpath-link)
This patch adds -rpath-link to doc/examples/Makefile.am.
Signed-off-by: Adrien Vergé <adrienverge@gmail.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Romain Naour [Wed, 9 Apr 2014 21:55:07 +0000 (23:55 +0200)]
Fix: disable liblttng-ust-dl if dlinfo is not available in C library
According to uClibc commit [1], dlinfo is not available in recent uClibc
(>0.9.33), but available in older version of uClibc (<=0.9.33) whith a
different prototype than glibc.
dlinfo used by liblttng-ust-dl require RTLD_DI_LINKMAP that is not
available in uClibc.
To be able to use LTTng UST with uClibc, we need to disable the Dynamic
Linker Tracing functionality [2] if RTLD_DI_LINKMAP is not detected.
[1] http://git.uclibc.org/uClibc/commit/?id=
f3c9dc499c5c787ddd8c4320f2d44d2ae6e40c22
[2] http://lists.lttng.org/pipermail/lttng-dev/2014-February/022423.html
Signed-off-by: Romain Naour <romain.naour@openwide.fr>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Tue, 15 Apr 2014 17:05:34 +0000 (13:05 -0400)]
Fix: pass proper args when writing commit counter
lib_ring_buffer_write_commit_counter()'s 'buf_offset' argument should
contain offset of beginning of area used by the record being comitted.
However, lib_ring_buffer_commit() passes ctx->buf_offset, that gets
advanced by lib_ring_buffer_write() and thus points to just-after-
end-of-record at lib_ring_buffer_commit() time. This causes
lib_ring_buffer_write_commit_counter() to return without changing
commit_hot[idx].seq, due to
if (unlikely(subbuf_offset(offset - commit_count, chan)))
return;
Since after-crash data extraction tool checks 'seq' field to find out
how much data is in buffer, this results into inavailability of
data from partially-filled subbuffer for after-crash analysis.
This patch modifies lib_ring_buffer_write_commit_counter() and all its
callers to pass and expect the end of the area. So code works as it
should, and complete information becomes visible in crash dump.
[ Fix ported from lttng-modules. Changelog inspired from Nikita
Yushchenko's original patch. ]
Fixes #785
Reported-by: Nikita Yushchenko <nyoushchenko@mvista.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Mon, 14 Apr 2014 14:58:52 +0000 (10:58 -0400)]
Fix: pad strings that are modified concurrently with tracing
Fixes #734
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Tue, 8 Apr 2014 19:03:26 +0000 (15:03 -0400)]
Version 2.4.1
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Tue, 8 Apr 2014 18:29:29 +0000 (14:29 -0400)]
Revert "Fix: disable liblttng-ust-dl if dlinfo is not available in C library"
This reverts commit
88a15b8f075177056017dbcc2e0c6d624805a34e.
It has been reported that this commit breaks the standard case.
Fixes: #778
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Jérémie Galarneau [Tue, 8 Apr 2014 15:28:23 +0000 (11:28 -0400)]
Fix: .split() the CC environment variable in lttng-gen-tp
The CC variable might contain command line arguments which lttng-gen-tp
currently does not handle. This fix ensures that the arguments are
properly passed on to the compiler binary as if a normal Makefile
was used.
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Romain Naour [Sun, 6 Apr 2014 21:02:41 +0000 (23:02 +0200)]
Fix: disable liblttng-ust-dl if dlinfo is not available in C library
According to uClibc commit [1], dlinfo is not available.
To be able to use LTTng UST with uClibc, we need to disable
the Dynamic Linker Tracing functionality [2].
[1] http://git.uclibc.org/uClibc/commit/?id=
f3c9dc499c5c787ddd8c4320f2d44d2ae6e40c22
[2] http://lists.lttng.org/pipermail/lttng-dev/2014-February/022423.html
Signed-off-by: Romain Naour <romain.naour@openwide.fr>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Jesper Derehag [Thu, 27 Mar 2014 07:57:06 +0000 (08:57 +0100)]
Fix: python invocation through env
This modification calls the interpreter through env instead of
directly, which should be more portable for those distros which do not install
python into /usr/bin/.
Signed-off-by: Jesper Derehag <jderehag@hotmail.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Jérémie Galarneau [Tue, 1 Apr 2014 15:49:58 +0000 (11:49 -0400)]
Fix: Override AM_PATH_PYTHON's default action-if-not-found
AM_PATH_PYTHON's default action aborts configure. This fix ensures that
configure follows through with a noop.
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Tue, 25 Mar 2014 14:00:28 +0000 (10:00 -0400)]
Fix: don't accept configure --disable-shared
Building LTTng-UST with --disable-shared compiles fine, but the
resulting installed static libraries silently fails to trace, because
tracepoint fails to dlopen liblttng-ust-tracepoint.so. So don't allow
this unsupported configure option.
Also document this requirement in the README.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Tue, 25 Mar 2014 13:46:40 +0000 (09:46 -0400)]
Fix: configure.ac: add missing result to alignment req. check
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Tue, 18 Mar 2014 14:27:03 +0000 (10:27 -0400)]
Fix: malloc wrapper: infinite recursion with compat TLS
Fixes #765
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Sat, 15 Mar 2014 00:31:13 +0000 (20:31 -0400)]
Fix: liblttng-ust-libc-wrapper recursive use of calloc
When built with URCU with --disable-compiler-tls, URCU tls-compat.h uses
calloc in its TLS compat layer. This is used by RCU read-side, which is
used by tracepoint. So using a tracepoint in calloc triggers an infinite
recursion, since its first use of the TLS (with TLS compat) calls
calloc.
Fix this issue by keeping a per-thread nesting counter, and as soon as
we are allocating memory from a context nested within the memory
allocator, don't trace.
Don't trace from the static allocator: keep it as simple as possible,
since this is our fallback.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Zifei Tong [Tue, 4 Mar 2014 12:50:14 +0000 (20:50 +0800)]
Fix: mismatch between code and comments
Signed-off-by: Zifei Tong <zifeitong@gmail.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Mon, 10 Mar 2014 15:16:35 +0000 (11:16 -0400)]
Fix: incorrect urcu git URL in README
Reported-by: Ruslan Uvashev <ruslan.uvashev@gmail.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Fri, 28 Feb 2014 18:33:51 +0000 (13:33 -0500)]
Version 2.4.0
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Fri, 28 Feb 2014 18:26:28 +0000 (13:26 -0500)]
Fix: JUL test: update to API change
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Fri, 28 Feb 2014 15:40:33 +0000 (10:40 -0500)]
Fix: Cast from pointer to different integer size warning
Occurs on a 32-bit build. Caused by casting pointer arguments to 64-bit
integers (in the filter stack preparation code).
Fixes #691
Reviewed-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Paul Woegerer [Fri, 28 Feb 2014 09:02:00 +0000 (10:02 +0100)]
Turn base address dump into experimental feature
Instead of having base address state dump enabled by default make it
necessary to explicitly enable it with environment variable
LTTNG_UST_WITH_EXPERIMENTAL_BADDR_STATEDUMP.
Documentation is updated to reflect this change and explain about the
experimental nature of this feature.
Signed-off-by: Paul Woegerer <paul_woegerer@mentor.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
David Goulet [Thu, 27 Feb 2014 19:51:55 +0000 (14:51 -0500)]
Fix: JUL support multiple loglevels
Fixes #744
Signed-off-by: David Goulet <dgoulet@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Jérémie Galarneau [Thu, 27 Feb 2014 17:30:41 +0000 (12:30 -0500)]
Fix: Skip lttng-gen-tp example build if Python is missing
Fixes #665
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
David Goulet [Thu, 27 Feb 2014 16:53:22 +0000 (11:53 -0500)]
Fix: dynamically fetch the session daemon port
When connecting to the session daemon, fetch the port at each try. This
moves the read port file functions to the TCP session daemon client
where the connect happens.
If the port file is not found, simply retry 3 seconds later. Also, this
adds a timeout to the acquire semaphore of 3 seconds.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: David Goulet <dgoulet@efficios.com>
David Goulet [Thu, 27 Feb 2014 15:06:52 +0000 (10:06 -0500)]
Fix: JUL agent connect to user and root sessiond
In order to achieve such a thing, two tracepoints are used where one is
for the regular user and the other one for root. This is to avoid
duplicating the payload in the user and root traces.
Furthermore, if a root port is found, a new thread is started to handle
the second session daemon.
This is lockstep commit with lttng-tools:
f43f95a9a82e01eed34593260d510bd32e2083ec
Fixes #732
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: David Goulet <dgoulet@efficios.com>
David Goulet [Wed, 26 Feb 2014 21:06:31 +0000 (16:06 -0500)]
Fix: handle registration done command
This makes the getLTTngAgent() call wait until we receive that message
so that in the meantime the session daemon can enable events.
Fixes #692
Signed-off-by: David Goulet <dgoulet@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Jérémie Galarneau [Tue, 25 Feb 2014 21:32:05 +0000 (16:32 -0500)]
Fix: Unsynchronized access in LTTngTCPSessiondClient
enabledEventList is shared between the LTTngThread and eventTimer
threads but is not synchronized.
This patch changes enabledEventList's type from an ArrayList to a
synchronized HashSet.
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Tue, 25 Feb 2014 11:43:46 +0000 (06:43 -0500)]
Cleanup: fix comment
Fixes #652
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Paul Woegerer [Tue, 25 Feb 2014 09:47:00 +0000 (10:47 +0100)]
Fix: Dump executable base-address with readlink
The previous approach only worked if the traced executable was invoked
via its fully qualified path. Using readlink to determine the full
qualified path of the traced executable works reliably even when the
traced executable is started via PATH lookup.
Signed-off-by: Paul Woegerer <paul_woegerer@mentor.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Fri, 21 Feb 2014 18:16:20 +0000 (13:16 -0500)]
Fix: add assert for NULL dereference
CID
1021248 (#1 of 1): Dereference null return value (NULL_RETURNS)3.
dereference: Dereferencing a null pointer "obj".
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Fri, 21 Feb 2014 18:13:14 +0000 (13:13 -0500)]
Fix: tracepoint out of memory handling
CID
1021247 (#1 of 1): Dereference null return value (NULL_RETURNS)3.
dereference: Dereferencing a null pointer "pl".
Handle more gracefully add_callsite memory allocation failure too.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Fri, 21 Feb 2014 18:00:59 +0000 (13:00 -0500)]
Fix: dereference before null check
Found by Coverity:
CID
1090602 (#1 of 1): Dereference before null check (REVERSE_INULL)
check_after_deref: Null-checking "stream" suggests that it may be null,
but it has already been dereferenced on all paths leading to the check
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Fri, 21 Feb 2014 17:54:07 +0000 (12:54 -0500)]
Cleanup: remove logically dead code
CID
1021235 (#1 of 1): Logically dead code (DEADCODE)
dead_error_line:
Execution cannot reach this statement "case LTTNG_UST_LOGLEVEL_ALL:".
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Fri, 21 Feb 2014 16:01:01 +0000 (11:01 -0500)]
Fix: handle sysconf errors
CID
1021261 (#1 of 1): Argument cannot be negative (NEGATIVE_RETURNS)10.
negative_returns: "sysconf(30)" is passed to a parameter that cannot be
negative.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Jérémie Galarneau [Tue, 18 Feb 2014 18:59:35 +0000 (13:59 -0500)]
Fix: java-jul/Makefile should not be marked as a binary
java-jul/Makefile is part of bin_SCRIPTS which causes it to be
installed under /usr/local/bin.
It is already installed as an example.
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Fri, 14 Feb 2014 16:42:38 +0000 (11:42 -0500)]
Version 2.4.0-rc4
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Fri, 14 Feb 2014 15:13:32 +0000 (10:13 -0500)]
Cleanup: remove extra space in dlerror wrapper
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Fri, 14 Feb 2014 15:02:51 +0000 (10:02 -0500)]
Fix: work-around glibc lying about dlsym()/dlerror() leafness
Especially in the LTTng-UST malloc instrumentation, we run into the
following situation:
1) Our calloc wrapper is called,
2) we setup the static allocator,
3) we call dlsym() to lookup the symbol of the real allocator,
4) dlsym() calls into calloc(), which is overridden by our own wrapper.
Our calloc does not see that the static allocator has been set,
because the stores setting up the static allocator have been optimized
away by gcc-4.8 (in O2), because the dlsym() prototype declares it
with the "leaf" attribute, and thus we end up doing an infinite
recursion, and eventually a segmentation fault.
Thanks to Alexander Monakov for pointing out the culprit of this glibc
bug.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Wed, 12 Feb 2014 22:00:58 +0000 (17:00 -0500)]
Cleanup: add lttng_ust_malloc_wrapper_init prototype to header
Ensure the weak symbol prototype matches the non-weak function.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Sat, 8 Feb 2014 22:12:16 +0000 (17:12 -0500)]
Fix: malloc libc instrumentation wrapper
calloc and realloc wrt dlsym and dlerror can trigger segmentation
faults. Ensure that we fully populate the allocator symbols all at once,
and also ensure that we use the static allocator while doing the dlsym
lookups.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
David Goulet [Fri, 7 Feb 2014 20:09:12 +0000 (15:09 -0500)]
Fix: add LTTngEvent class to fix delayed logger
This commit introduces a new object called LTTngEvent that represent a
LTTng event containing some attributes, for now loglevel data.
Instead of moving event string name around, this object is created once
and kept in the log handler so once a record is publish we can match
attributes such as loglevels.
This has to be done in order to fix the issue where we have a Logger
that appears later on during runtime (with the timer that poll every 5
seconds). With a created event object we can lookup back the event
attributes and enabled it accordingly. Same goes with the * (all events)
where we now keep the loglevel values process wide so we can force the
new events to use it.
Signed-off-by: David Goulet <dgoulet@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Fri, 7 Feb 2014 16:54:06 +0000 (11:54 -0500)]
Fix: FD leak in liblttng-ust-ctl
Make sure wait/wakeup stream and channel FDs are closed at teardown.
This led to FD leaks on the consumer daemon when the relay daemon
disconnects unexpectedly.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Wed, 5 Feb 2014 00:38:48 +0000 (19:38 -0500)]
Fix: liblttng-ust-dl Makefile flags mismatch
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Wed, 5 Feb 2014 00:38:19 +0000 (19:38 -0500)]
Fix: liblttng-ust-fork Makefile flags mismatch
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Tue, 4 Feb 2014 20:08:25 +0000 (15:08 -0500)]
Fix: out of tree examples build
Fixes #664
Fixes #703
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Mon, 3 Feb 2014 18:41:35 +0000 (13:41 -0500)]
Fix: C++: incomplete extern C guard transition
Recently, commits to fix SDT issues with extern C
(https://bugs.lttng.org/issues/597) brougt in compile errors when the
tracepoint is defined in the same file where the tracepoint provider is
created.
This was due to the presence of extern C guards in tracepoint-event.h, a
header dedicated to tracepoint probe provider compilation. After commits
"Tracepoint probes don't need extern C", it should have gone away. This
is the main fix done by this patch.
This patch also adds missing extern C guards in ust-error.h and
ust-events.h.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Wed, 29 Jan 2014 16:54:41 +0000 (11:54 -0500)]
Version 2.4.0-rc3
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
David Goulet [Tue, 28 Jan 2014 22:29:09 +0000 (17:29 -0500)]
Fix: add missing JUL loglevel handling
Signed-off-by: David Goulet <dgoulet@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Tue, 14 Jan 2014 15:00:08 +0000 (10:00 -0500)]
Cleanup gen-tp: add quotes around AM_CC
Would deal with spaces in the env. var. if there are any. It does not
seem to be important in practice (currently), because automake seems to
fail on CC including spaces at configure time.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Jérémie Galarneau [Fri, 10 Jan 2014 21:38:05 +0000 (16:38 -0500)]
Pass the CC variable to the example Makefiles
Cross-compilation fails when using the --host configure option
since the cross-compiler is not invoked by the hand-made Makefiles
in doc/examples.
The CC variable must be passed explicitly to ensure the host's
default compiler is not invoked.
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Wed, 8 Jan 2014 15:13:11 +0000 (10:13 -0500)]
cleanup ust_baddr and ust_baddr_statedump doc
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Paul Woegerer [Thu, 19 Dec 2013 15:21:19 +0000 (16:21 +0100)]
baddr: add ust_baddr and ust_baddr_statedump doc
Signed-off-by: Paul Woegerer <paul_woegerer@mentor.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Mon, 16 Dec 2013 13:36:06 +0000 (08:36 -0500)]
Fix: baddr_statedump tracepoint registration
Make sure that the ust_baddr_statedump probe is registered prior to
using the tracepoint in lttng_ust_baddr_statedump(). This fix solves the
issue that in rare cases the very first ust_baddr_statedump events were
missing.
Use a reference counting approach that allows constructors/destructors
of the probe to be called many times, as long as the number of calls to
constructor matches the number of calls to destructor.
Reported-by: Paul Woegerer <paul_woegerer@mentor.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Wed, 11 Dec 2013 16:29:23 +0000 (11:29 -0500)]
Fix: baddr out of tree build
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Tue, 10 Dec 2013 19:17:34 +0000 (14:17 -0500)]
Version 2.4.0-rc2
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Paul Woegerer [Tue, 10 Dec 2013 13:07:51 +0000 (14:07 +0100)]
Fix: baddr_statedump tracepoint registration
Ensure baddr_statedump tracepoint registration is completed prior to
using the tracepoint in lttng_ust_baddr_statedump().
Make liblttng-ust-dl robust for explicit baddr_statedump tracepoint
deregistration in lttng_ust_cleanup() (prevent dlopen/dlclose to get
traced if ust_baddr tracepoints are not available).
Signed-off-by: Paul Woegerer <paul_woegerer@mentor.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Sun, 8 Dec 2013 15:28:47 +0000 (10:28 -0500)]
Fix: baddr deadlocks and RCU races
Fix deadlocks wrt internal libc mutexes.
Fix RCU races by ensuring every UST source file using RCU read-side lock
is marked as _LGPL_SOURCE. The dynamic binding to urcu-bp relies on the
dynamic loader, and it seems not to behave well when used from
constructors.
Use Userspace RCU with this commit to completely fix baddr races:
"Fix: urcu-bp interaction with threads vs constructors/destructors"
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Wed, 4 Dec 2013 22:08:17 +0000 (23:08 +0100)]
Fix: lock exit mutex when creating threads
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Tue, 3 Dec 2013 21:47:52 +0000 (22:47 +0100)]
Fix: baddr deadlock with lttng-ust destructor
Was hanging lttng-tools tests/regression/ust/overlap/test_overlap
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Tue, 3 Dec 2013 17:08:09 +0000 (18:08 +0100)]
baddr: include missing header
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Tue, 3 Dec 2013 17:04:17 +0000 (18:04 +0100)]
baddr: get session under lock
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Sat, 30 Nov 2013 14:42:50 +0000 (15:42 +0100)]
Fix: take the ust lock around session iteration in statedump
This is crafted _very_ carefully: we need to always take the ust lock
_within_ the dynamic loader lock.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Paul Woegerer [Fri, 29 Nov 2013 13:32:54 +0000 (14:32 +0100)]
Fix: baddr_statedump deadlock with JUL tracing
Signed-off-by: Paul Woegerer <paul_woegerer@mentor.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Sat, 30 Nov 2013 10:47:05 +0000 (11:47 +0100)]
Fix: client_packet_header() uses wrong packet
It should use lib_ring_buffer_read_offset_address() to get the packet
being read, rather than lib_ring_buffer_offset_address(), which is only
meant to be used when writing to the packet.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Sat, 30 Nov 2013 10:45:51 +0000 (11:45 +0100)]
Cleanup: fix typo in ring buffer backend comment
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Thu, 28 Nov 2013 15:38:52 +0000 (16:38 +0100)]
Compile liblttng-ust-baddr c files into liblttng-ust
Move them into liblttng-ust/, where they are now compiled.
This is to ensure we don't rely on statically linked libs (and
associated constructor problems), and that we don't install a shared
object in the system needlessly.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Paul Woegerer [Thu, 28 Nov 2013 12:26:54 +0000 (13:26 +0100)]
Allow suppressing of base-address-state tracing
Signed-off-by: Paul Woegerer <paul_woegerer@mentor.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Paul Woegerer [Thu, 28 Nov 2013 12:26:52 +0000 (13:26 +0100)]
Integrate base-address statedump into lttng-ust
Signed-off-by: Paul Woegerer <paul_woegerer@mentor.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Sun, 24 Nov 2013 09:11:16 +0000 (04:11 -0500)]
Fix: eliminate timestamp overlap between packets
By using the timestamp sampled at space reservation when the packet is
being filled as "end timestamp" for a packet, we can ensure there is no
overlap between packet timestamp ranges, so that packet timestamp end <=
following packets timestamp begin.
Overlap between consecutive packets becomes an issue when the end
timestamp of a packet is greater than the end timestamp of a following
packet, IOW a packet completely contains the timestamp range of a
following packet. This kind of situation does not allow trace viewers
to do binary search within the packet timestamps. This kind of situation
will typically never occur if packets are significantly larger than
event size, but this fix ensures it can never even theoretically happen.
The only case where packets can still theoretically overlap is if they
have equal begin and end timestamps, which is valid.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
David Goulet [Fri, 22 Nov 2013 19:16:39 +0000 (14:16 -0500)]
Fix: lttng-gen-tp to build out of tree
Signed-off-by: David Goulet <dgoulet@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
David Goulet [Fri, 22 Nov 2013 18:50:01 +0000 (13:50 -0500)]
Fix: compile doc/ after JUL/Java
Signed-off-by: David Goulet <dgoulet@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
David Goulet [Wed, 20 Nov 2013 20:24:02 +0000 (15:24 -0500)]
JUL: add Hello.java in doc/examples
Signed-off-by: David Goulet <dgoulet@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Sat, 23 Nov 2013 17:55:44 +0000 (12:55 -0500)]
Fix lttng-ust(3) manpage
Describe that TRACEPOINT_CREATE_PROBES is needed.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
David Goulet [Wed, 20 Nov 2013 16:35:35 +0000 (11:35 -0500)]
JUL: fix enable all event for delayed Logger
This adds a HashMap containing the enabled Logger names (and wildcard
'*'). This is used to make sure we don't enable twice the same Logger
for the '*' event name (enable all -a).
Signed-off-by: David Goulet <dgoulet@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
David Goulet [Wed, 20 Nov 2013 15:04:04 +0000 (10:04 -0500)]
Fix: typo in JNICALL for the JUL tracepoint
Signed-off-by: David Goulet <dgoulet@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Tue, 19 Nov 2013 02:16:06 +0000 (21:16 -0500)]
Fix: move va_end to outermost label
Coverity:
** CID
1021237: Missing varargs init or cleanup (VARARGS)
/snprintf/vfprintf.c: 955 in ust_safe_vfprintf()
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Tue, 19 Nov 2013 02:07:13 +0000 (21:07 -0500)]
Fix: add missing NULL check after allocation
Found by coverity:
** CID
1021246: Dereference null return value (NULL_RETURNS)
/libringbuffer/shm.c: 80 in shm_object_table_create()
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Fri, 15 Nov 2013 19:52:41 +0000 (14:52 -0500)]
Fix cleanup: all spaces before flags
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Fri, 15 Nov 2013 19:43:45 +0000 (14:43 -0500)]
fix: lttng-gen-tp: add missing spaces around flags
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Fri, 15 Nov 2013 18:55:22 +0000 (13:55 -0500)]
Version 2.4.0-rc1
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Fri, 15 Nov 2013 18:48:28 +0000 (13:48 -0500)]
doc/examples: error out when a subdir make fails
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Fri, 15 Nov 2013 18:24:40 +0000 (13:24 -0500)]
JUL: fix out of tree build
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Fri, 15 Nov 2013 17:17:02 +0000 (12:17 -0500)]
Java/jul: fix make dist
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Fri, 15 Nov 2013 16:59:46 +0000 (11:59 -0500)]
JUL: install documentation and jar file
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Fri, 15 Nov 2013 15:46:08 +0000 (10:46 -0500)]
Add missing copyrights to test scripts
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Jon Bernard [Fri, 15 Nov 2013 14:12:47 +0000 (09:12 -0500)]
Escape minus signs in lttng-ust-cyg-profile manpage
By default, "-" chars are interpreted as hyphens (U+2010) by groff, not
as minus signs (U+002D). Since options to programs use minus signs
(U+002D), this means for example in UTF-8 locales that you cannot cut
and paste options, nor search for them easily.
Source: http://lintian.debian.org/tags/hyphen-used-as-minus-sign.html
Signed-off-by: Jon Bernard <jbernard@tuxion.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Jon Bernard [Fri, 15 Nov 2013 14:12:33 +0000 (09:12 -0500)]
Fix spelling mistake in lttng-ust manpage
Signed-off-by: Jon Bernard <jbernard@tuxion.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Zifei Tong [Fri, 15 Nov 2013 15:04:55 +0000 (23:04 +0800)]
Fix tests/benchmark
Add copyright notice.
Remove extern C guard with respect to #597.
Signed-off-by: Zifei Tong <soariez@gmail.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Paul Woegerer [Thu, 14 Nov 2013 18:39:49 +0000 (19:39 +0100)]
Implement base-address-state tracing
Dump the base-address state (executable and shared objects) into session
on session-enable (per-session events).
Signed-off-by: Paul Woegerer <paul_woegerer@mentor.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Paul Woegerer [Thu, 14 Nov 2013 17:03:25 +0000 (18:03 +0100)]
Base-address tracing for dlopen and dlclose
Provide an LD_PRELOAD library to allow tracing of calls to dlopen and
dlclose.
Signed-off-by: Paul Woegerer <paul_woegerer@mentor.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
JP Ikaheimonen [Thu, 7 Nov 2013 10:22:35 +0000 (12:22 +0200)]
Add a check against excluders
When matching enablers with events, first check against all
excluders of the enabler. If the event matches with any of the excluders,
then the event does not match with the enabler.
[ Edit by Mathieu Desnoyers: apply coding style changes. ]
Signed-off-by: JP Ikaheimonen <jp_ikaheimonen@mentor.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
JP Ikaheimonen [Thu, 7 Nov 2013 10:22:34 +0000 (12:22 +0200)]
Add handler for LTTNG_UST_EXCLUSION in UST ABI
Add message handler for the LTTNG_UST_EXCLUSION command in
UST ABI. Copy the exclusion data into a lttng_ust_excluder_node
structure and pass it to the enabler command handler.
Signed-off-by: JP Ikaheimonen <jp_ikaheimonen@mentor.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
JP Ikaheimonen [Thu, 7 Nov 2013 10:22:33 +0000 (12:22 +0200)]
Store exclusions to enablers
Implement a function that adds exclusions to the list in the enabler.
Call this function in the enabler command handler when the
LTTNG_UST_EXCLUSION command is received.
Signed-off-by: JP Ikaheimonen <jp_ikaheimonen@mentor.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
JP Ikaheimonen [Thu, 7 Nov 2013 10:22:32 +0000 (12:22 +0200)]
Add excluders to enabler structure
Define a structure that holds excluders and can be used in lists.
Add a list holding these structures to the enabler structure.
Initialize and destroy the list when the enabler is initialized
and destroyed.
Signed-off-by: JP Ikaheimonen <jp_ikaheimonen@mentor.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
JP Ikaheimonen [Thu, 7 Nov 2013 10:22:31 +0000 (12:22 +0200)]
Send exclusion data through ustcomm
Define a function ustctl_set_exclusion that sends the
exclusion data through ustcomm with the LTTNG_UST_EXCLUSION
command message.
Signed-off-by: JP Ikaheimonen <jp_ikaheimonen@mentor.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
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