Nils Carlson [Thu, 4 Nov 2010 16:44:12 +0000 (17:44 +0100)]
Add ustcomm_trace_info struct and support functions to ustcomm
Signed-off-by: Nils Carlson <nils.carlson@ericsson.com>
Acked-by: David Goulet <david.goulet@polymtl.ca>
Nils Carlson [Thu, 4 Nov 2010 16:15:10 +0000 (17:15 +0100)]
Kill some unused code in ustcomm.c
Signed-off-by: Nils Carlson<nils.carlson@ericsson.com>
Acked-by: David Goulet <david.goulet@polymtl.ca>
Nils Carlson [Tue, 26 Oct 2010 17:48:12 +0000 (19:48 +0200)]
ChangeLog and version updates for release 0.8
Nils Carlson [Mon, 25 Oct 2010 10:57:30 +0000 (12:57 +0200)]
Make tracectl destructor aware of fork status
This little patch checks to see whether we have used a fork
wrapper to fork. If not we won't have a working UST in the process
and can skip the destructor stage.
Signed-off-by: Nils Carlson <nils.carlson@ericsson.com>
Acked-by: David Goulet <david.goulet@polymtl.ca>
Nils Carlson [Mon, 25 Oct 2010 10:06:31 +0000 (12:06 +0200)]
Function tests for libustcmd and a C tap library
This is a bunch of function tests for libustcmd, checking return
values and other things and emitting output directly in TAP format.
I wanted to get better feedback on what is working and what isn't
and also check that functions return intelligent values. The function
tests currently run without ustd. Eventually I want to link ustd into
the testcase as well to check that functions return errors if no ustd
instance was reachable, but right now it's enough that we get some
general feedback.
Signed-off-by: Nils Carlson <nils.carlson@ericsson.com>
Acked-by: David Goulet <david.goulet@polymtl.ca>
Nils Carlson [Mon, 11 Oct 2010 14:10:30 +0000 (16:10 +0200)]
Introduce a new communication protocol for UST v5
Changes since v4:
More scanning fixes in ustctl
Changes since v3:
Fix minor bugs in ustctl
Changes since v2:
Fix packing of the socket path and ustcmd handling
of socket path
Changes since v1:
Update after comments from David Goulet,
fix some style issues, a bug in GET_SOCK_PATH and
add a fixme for posterity.
This is once again a bit of a code-dump. The principal of this
patch is to get rid of most string parsing in UST and most
dynamic heap memory allocation by libust. A secondary goal
has been to introduce a command-response model so all commands
receive responses with a result code. This has been achived
through the following steps.
1. Create standardised message containers as structs ending in
a char array. The char array is used to pack strings into
while pointers in the struct point positions relative the data
segment in the struct. Unpacking the struct upon reception is
a simple matter of adding to the pointers the position in memory
of the char array.
2. Keeping a char array permanently allocated in libust that is
used to receive incoming data, avoiding allocation. This array
is large enough to receive any of the pre-defined message
structs.
3. Replacing all string matching for commands with enum based switch
statements. This will scale better over time.
4. All commands now receive responses containing a result as a negative
errno. Libustcmd now returns -1 and sets errno according to these.
Eventually these will need to be documented in manpages with
what each errno implies. Ustctl needs to check these in turn and
give meaningfull feedback.
5. Cleaning up tracectl.c quite a bit separating out control functions
and message handling.
6. Move channel marker scanning from tracectl out to ustctl.
Fifth is a pain
Signed-off-by: Nils Carlson <nils.carlson@ericsson.com>
Acked-by: David Goulet <david.goulet@polymtl.ca>
Nils Carlson [Tue, 12 Oct 2010 08:13:37 +0000 (10:13 +0200)]
Remove a silly print out in ust_trace.h
Signed-off-by: Nils Carlson <nils.carlson@ericsson.com>
Acked-by: David Goulet <david.goulet@polymtl.ca>
Nils Carlson [Mon, 11 Oct 2010 15:01:32 +0000 (17:01 +0200)]
Add a valgrind suppression for sendmsg (v2)
Changes since v1: Make the suppression match libc and
libpthread, multiple versions.
For some reason valgrind thinks the iov array in ustcomm_send_fd
is used uninitialised. Add a suppression so this won't show as
an error.
Signed-off-by: Nils Carlson <nils.carlson@ericsson.com>
Acked-by: David Goulet <david.goulet@polymtl.ca>
David Goulet [Fri, 1 Oct 2010 19:19:57 +0000 (21:19 +0200)]
Add a tracepoint test program
This test is aimed at testing different tracepoint case and
be used to ensure no bugs are added.
Complete description of the test in tracepoint_test.c
Signed-off-by: David Goulet <david.goulet@polymtl.ca>
Acked-by: Nils Carlson <nils.carlson@ericsson.com>
Nils Carlson [Mon, 11 Oct 2010 13:28:18 +0000 (15:28 +0200)]
Update the COPYING file to state the correct license
Update the COPYING file to the most applicable license and
add more attributions.
Signed-off-by: Nils Carlson <nils.carlson@ericsson.com>
David Goulet [Thu, 30 Sep 2010 18:52:55 +0000 (20:52 +0200)]
Fix missing data pointer
This applies to tracepoint using a marker (trace_mark_tp)
At commit
9dec086e052cf7f583a3afaa3aab48a6de8d38ac,
the tracepoint_probe_register/unregister_noupdate function has been
changed with the addition of a void data pointer. In set_marker(),
the call to that function was not updated with this new parameter.
The effect was that on a second register_trace with an already
registered probe, the data ptr was corrupted with false data and
thus the probe checking failed to validate duplicates. So, the same
data was reproduced for a single trace call. Same behavior for
unregistering the marker, it was not found.
NOTE : For now, this pointer is NULL because we don't have at this
point tracing session.
Signed-off-by: David Goulet <david.goulet@polymtl.ca>
Acked-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Thu, 30 Sep 2010 14:49:05 +0000 (16:49 +0200)]
Fix insecure library loading (Debian Bug #598309, CVE-2010-3386) (v2)
Thanks to Raphael Geissert for spotting this, and to Jon Bernard for forwarding
the information to us.
Changelog since v1:
Apply comments from Nils.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Acked-by: Nils Carlson <nils.carlson@ericsson.com>
CC: Raphael Geissert <geissert@debian.org>
CC: Jon Bernard <jbernard@debian.org>
Nils Carlson [Thu, 30 Sep 2010 08:09:04 +0000 (10:09 +0200)]
Fix a zmalloc bug
sizeof(void *) was allocated instead of sizeof(struct probe).
Signed-off-by: Nils Carlson <nils.carlson@ericsson.com>
David Goulet [Tue, 28 Sep 2010 13:05:49 +0000 (15:05 +0200)]
New naming convention for internal macros
This is the first patch introducing the new naming convention
for the UST tracer. To prevent namespace pollution, _ust_ prefix
is added to internal macros which are visible in the global header.
For this patch, only the container_of macro is renamed and the
redundant definition in kcompat/simple.h is removed.
Signed-off-by: David Goulet <david.goulet@polymtl.ca>
Acked-by: Nils Carlson <nils.carlson@ericsson.com>
Nils Carlson [Mon, 27 Sep 2010 08:54:48 +0000 (10:54 +0200)]
Re-write ustcomm parts of UST v2
Changes since v1:
Updated after comments from David Goulet and resulting insights.
* Add a continue after a failed accept
* Fix some malloc issues
* Fix some coding style in the patch
* make del_named_sock free the memory, even if all else fails.
Notice: valgrind test-case currently broken. Needs an exception.
Description:
This is a very big patch, and so it requires a bit of explaining.
This patch is a step on the way of accomplishing serveral goals I have in this
area:
1. Use enums for commands and eliminate text-based commands. This does not mean
that we will stop processing strings for trace/channel and marker names;
just that the long series of if statements with token and string matching
will be replaced with a switch statement. To this end I have created a
ustcomm_header struct that contains the length of the data-field and some
other fields. This allows us to first receive the header, allocate memory
for the data and then receive the data; eliminating all scanning of messages.
2. Reduce the complexity of the implementation. To put it simply, I don't like
callbacks. They reduce transparency and make it difficult to follow the
flow of the code; so I have eliminated multipoll replacing it with a normal
epoll. I have also replaced almost all the different server, connection and
source structs with one, called ustcomm_sock.
3. Make ustd scale better. Currently ustd scales terribly. We allocate one
thread per-cpu per-channel per-process, five applications each with three
channels on a four cpu machine leads to 5*3*4=60 threads. Part of the reason
for this multitude of threads was that we used a ustcomm_request call
(consisting of a send and a receive) to wait for a subbuffer to be written.
The sequence for a subbuffer to be written was as follows:
Ustd calls send with a 'get_subbuffer' command, and then recv in one of
the threads and hangs on the recv on the socket.
Upon filling the subbuffer the traced app writes '1' to a pipe.
The ust_thread inside the app which was listening to the other end of the
pipe wakes up when the '1' is written. The callback from multipoll calls
a send which sends a reply to the ustd thread over the socket.
The ustd thread wakes up and reads the message, continuing along in its
execution.
I replace this with a bit of a different mechanism, which should allow us
to eventually reduce the number of threads to one per cpu:
Ustd requests a buffer_fd which causes the ustd_thread inside the app
to send the file-descriptor for the read en of the pipe to ustd.
The ustd thread now does a read on the pipe, halting its execution until
the app fills the subbuffer and writes '1' to the pipe, waking up the ustd
thread.
Ustd now makes the 'get_subbuffer' call which the ust_thread inside the
app responds to with information about the subbuffer. Writes it and then
goes back to the read call, hanging on the pipe.
So we are still stuck on the multitude of threads, but we are in much better
position to move forward. Replacing the read with an epoll statement and then
pointing the epoll event data at the buffer struct containing the current
buffer to whitch the pipe belongs should be relatively easy. We can then
instead of spawning a new thread for each buffer just allocate the
buffer_info struct and assign it to one of the per-cpu threads in ustd to
poll on.
4. Replace poll with epoll which scales better, especially for
events << (nr of fds). This is complete.
5. Allow UST to handle arbitrarily long unix socket names. This is done by
carefull allocation of the socketaddr_un struct with a dynamic length.
Truncating is ugly and dangerous.
There is a lot of work still left to be done. This is only the first of a
number of patches that I expect in this area. If someone feels like tackling
ustd head on to reduce the number of threads that would be great.
I have kept Pierre-Marc's form of error handling for the I/O wrapping functions
because I want to propagate return codes up to the apps that are using them
so they can close file-descriptors and free associated resources. If somebody
knows of a better approach please make yourself heard.
Signed-off-by: Nils Carlson <nils.carlson@ericsson.com>
Acked-by: David Goulet <david.goulet@polymtl.ca>
Nils Carlson [Wed, 22 Sep 2010 07:05:03 +0000 (09:05 +0200)]
Fix a strange bash anomaly in test_functions.sh
If anybody has time time to investigate this that would be great.
Unforunately, I don't.
Signed-off-by: Nils Carlson <nils.carlson@ericsson.com>
Douglas Santos [Mon, 13 Sep 2010 23:03:10 +0000 (19:03 -0400)]
fix sscanf format string v3
Signed-off-by: Douglas Santos <douglas.santos@polymtl.ca>
Acked-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Douglas Santos [Mon, 13 Sep 2010 22:47:43 +0000 (18:47 -0400)]
tracectl cleanup v3
kernel style-> if, else, for, while
also remove a trailing space
Signed-off-by: Douglas Santos <douglas.santos@polymtl.ca>
Acked-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
David Goulet [Fri, 17 Sep 2010 19:41:12 +0000 (21:41 +0200)]
Remove unused code
Signed-off-by: David Goulet <david.goulet@polymtl.ca>
Acked-by: Nils Carlson <nils.carlson@ericsson.com>
David Goulet [Fri, 17 Sep 2010 19:41:11 +0000 (21:41 +0200)]
Syntax cleanup
Replace spaces by tabs and remove trailing white spaces
Signed-off-by: David Goulet <david.goulet@polymtl.ca>
Acked-by: Nils Carlson <nils.carlson@ericsson.com>
David Goulet [Fri, 17 Sep 2010 19:41:10 +0000 (21:41 +0200)]
Change code for consistency
Use the kcompat stringify header for double level
stringification for markers section.
Also use the GET_MARKER macro for uniformity across the code.
Signed-off-by: David Goulet <david.goulet@polymtl.ca>
Acked-by: Nils Carlson <nils.carlson@ericsson.com>
Douglas Santos [Fri, 10 Sep 2010 21:28:55 +0000 (23:28 +0200)]
null check for disable_marker
Signed-off-by: Douglas Santos <douglas.santos@polymtl.ca>
Acked-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Nils Carlson [Fri, 10 Sep 2010 11:28:29 +0000 (13:28 +0200)]
Correct error handling and add error message in ustcmd.c
Signed-off-by: Nils Carlson <nils.carlson@ericsson.com>
Acked-by: Douglas Santos <douglas.santos@polymtl.ca>
Nils Carlson [Fri, 10 Sep 2010 08:49:49 +0000 (10:49 +0200)]
Add functions and command line for listing trace_events v3
Changes from version 2: Fix a comment.
Changes from version 1: Fix silly things per Davids comments,
realise that we are looping over pids and therefore need to set
all pointers to NULL and all counters to zero each time.
Nils Carlson [Wed, 8 Sep 2010 14:54:48 +0000 (16:54 +0200)]
Add trace_event library initialisation
Add library initialisation with dummy trace_event in order
to create sections.
Nils Carlson [Wed, 8 Sep 2010 13:17:22 +0000 (15:17 +0200)]
Add trace_event structs
Add trace_event structs, registration functions and trace_event
iterator and locking functions.
David Goulet [Thu, 9 Sep 2010 16:48:16 +0000 (18:48 +0200)]
Set the exit status of ustctl main function v3
Each possible command checks the return value and, on error,
print on stderr and set the retval. This makes ustctl return
an EXIT_FAILURE on any command that fails.
Signed-off-by: David Goulet <david.goulet@polymtl.ca>
Acked-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
David Goulet [Thu, 9 Sep 2010 21:11:19 +0000 (23:11 +0200)]
Fix missing parenthese around logic comparison
Error introduce in commit number
9dec086e052cf7f583a3afaa3aab48a6de8d38ac.
Signed-off-by: David Goulet <david.goulet@polymtl.ca>
Acked-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
David Goulet [Thu, 9 Sep 2010 16:55:45 +0000 (18:55 +0200)]
Fix DBG to ERR for data format mismatch
Signed-off-by: David Goulet <david.goulet@polymtl.ca>
Acked-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
David Goulet [Tue, 7 Sep 2010 20:26:12 +0000 (22:26 +0200)]
Fix return value handling for libustcmd
Return value was not checked correctly so this was
triggering a free() on an invalid pointer causing
ustctl to fail badly.
Signed-off-by: David Goulet <david.goulet@polymtl.ca>
David Goulet [Tue, 7 Sep 2010 13:03:41 +0000 (15:03 +0200)]
Change malloc to zmalloc for libust
Signed-off-by: David Goulet <david.goulet@polymtl.ca>
David Goulet [Fri, 3 Sep 2010 19:15:28 +0000 (21:15 +0200)]
Fix missing data pointer for trace_mark_tp v2
Signed-off-by: David Goulet <david.goulet@polymtl.ca>
David Goulet [Fri, 3 Sep 2010 16:37:51 +0000 (18:37 +0200)]
Fix retval value assignment on error
Signed-off-by: David Goulet <david.goulet@polymtl.ca>
David Goulet [Fri, 3 Sep 2010 21:09:25 +0000 (23:09 +0200)]
Fix asprintf and scanf ignoring return value
Signed-off-by: David Goulet <david.goulet@polymtl.ca>
Nils Carlson [Wed, 1 Sep 2010 13:54:08 +0000 (15:54 +0200)]
Fix a broken test makefile
The makefile was missing the header file in the sources list and
so was failing make distcheck.
Nils Carlson [Tue, 31 Aug 2010 13:45:08 +0000 (15:45 +0200)]
Update test-case for tracepoints and add a new test-case
Update the test-case for probes to handle a new data pointer
in the probe function. Also add a new test-case that stress-tests
probe registration and unregistration.
Nils Carlson [Tue, 31 Aug 2010 13:10:59 +0000 (15:10 +0200)]
Add a data pointer to all tracepoint probe callbacks
RCU now dereferences an array of probe structs containing data pointers and
function pointers, and passes the data pointer as the first argument to the
probe.
Due to this change void prototypes are no longer allowed, which has incurred
changes to libust-initializer.c .
This patch also fixes a problem where non-existent tracepoints are present
in the __tracepoints section and with a name pointer pointing at NULL.
Nils Carlson [Mon, 30 Aug 2010 08:23:04 +0000 (10:23 +0200)]
Add a simple test case for TRACE_EVENT v2
The test case is useful for verifying compilation of the simplest
possible TRACE_EVENT.
Changes since version 1:
Added copyright notices
updated run with UST_AUTOCOLLECT per Davids comment.
Nils Carlson [Mon, 30 Aug 2010 08:22:53 +0000 (10:22 +0200)]
Import TRACE_EVENT macro from the kernel v3
This is a slightly modified version of the TRACE_EVENT
macro from the kernel, TP_printf has replaced TP_printk.
The TRACE_EVENT macro expansion is currently a dummy which
only expands to a printf probe, connected in a constructor.
Changes since version 2:
Added re-licensing information
Macro naming is more consisten (always contains trace)
Changes since version 1:
Added new headers to include/Makefile.am
Added major copyright holders and license information to headers.
Nils Carlson [Mon, 30 Aug 2010 08:22:40 +0000 (10:22 +0200)]
Add LGPLv2.1 license text
Pierre-Marc Fournier [Tue, 24 Aug 2010 03:42:45 +0000 (23:42 -0400)]
update ustctl man page
Pierre-Marc Fournier [Fri, 20 Aug 2010 04:42:41 +0000 (00:42 -0400)]
Final updates for release 0.7
David Goulet [Wed, 18 Aug 2010 17:10:32 +0000 (13:10 -0400)]
Changes malloc to zmalloc
For libustcomm, libustd, ustctl and ustd.
Signed-off-by: David Goulet <david.goulet@polymtl.ca>
David Goulet [Wed, 18 Aug 2010 21:25:15 +0000 (17:25 -0400)]
Removes useless ___cacheline_aligned
Signed-off-by: David Goulet <david.goulet@polymtl.ca>
David Goulet [Tue, 17 Aug 2010 18:47:00 +0000 (14:47 -0400)]
Updates Changelog for UST version 0.6
Signed-off-by: David Goulet <david.goulet@polymtl.ca>
Mathieu Desnoyers [Tue, 17 Aug 2010 22:23:21 +0000 (18:23 -0400)]
UST strncpy assert fix
fix off by one in strncpy and write asserts(). Shows only when the event
reserved fits the exact end of buffer.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Alexis Hallé [Wed, 18 Aug 2010 15:54:26 +0000 (11:54 -0400)]
properly install libustd and libustcmd
Alexis Hallé [Wed, 4 Aug 2010 15:18:17 +0000 (11:18 -0400)]
don't install libustcomm and libustsnprintf
These internal libraries should not be exposed to users and were
only installed by mistake.
Alexis Hallé [Wed, 4 Aug 2010 15:18:16 +0000 (11:18 -0400)]
remove dependency on ustcomm.h where possible
ustcomm structures are replaced with pointers so the compiler doesn't
have to know the contents of the structures. This is done so ustcmd.h
and libustd.h can be installed on a system without needing to install
ustcomm.h.
Alexis Hallé [Wed, 4 Aug 2010 15:18:15 +0000 (11:18 -0400)]
remove unused variables
Pierre-Marc Fournier [Mon, 16 Aug 2010 04:49:20 +0000 (00:49 -0400)]
Final updates for release 0.6
Mathieu Desnoyers [Sun, 15 Aug 2010 23:11:37 +0000 (19:11 -0400)]
serialize string input robustness
Make sure we handle concurrently modified input strings gracefully.
Adds ust_buffers_strncpy interface. It fixes up the string if it does not fills
exactly the space allocated. Ensures the string ends with \0.
Removes unused "_ust_buffers_write" at the same time.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mathieu Desnoyers [Wed, 11 Aug 2010 14:13:42 +0000 (10:13 -0400)]
UST synchronization fix
Missing smp_wmb() at subbuffer switch.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Pierre-Marc Fournier [Tue, 3 Aug 2010 03:13:32 +0000 (23:13 -0400)]
fix invalid array access
reported by Damien Cottier
Alexis Hallé [Wed, 14 Jul 2010 18:52:01 +0000 (14:52 -0400)]
ustctl manpage: document force-switch
Alexis Hallé [Wed, 14 Jul 2010 18:52:00 +0000 (14:52 -0400)]
add a command to force subbuffer switch
Alexis Hallé [Wed, 14 Jul 2010 18:51:59 +0000 (14:51 -0400)]
remove ltt_relay_buffer_flush function
All it did was call ltt_force_switch and wake up consumers, when
ltt_force_switch already wakes up the consumers.
Alexis Hallé [Wed, 14 Jul 2010 18:51:58 +0000 (14:51 -0400)]
ustctl manpage: document get/set-sock-path
Alexis Hallé [Wed, 14 Jul 2010 18:51:57 +0000 (14:51 -0400)]
add get/set commands for daemon socket path
Alexis Hallé [Wed, 14 Jul 2010 18:51:56 +0000 (14:51 -0400)]
create libustd from ustd
This makes libustd a library containing the core functionality of
the daemon, and ustd a simple client application using this library,
interacting with it via a set of callbacks supplied to it.
Pierre-Marc Fournier [Thu, 15 Jul 2010 01:05:16 +0000 (21:05 -0400)]
add paranoid check before listener thread destruction
In case a pthread error prevented its creation.
Pierre-Marc Fournier [Tue, 6 Jul 2010 00:04:06 +0000 (20:04 -0400)]
define ____cacheline_aligned
David Goulet [Thu, 24 Jun 2010 16:32:29 +0000 (12:32 -0400)]
Fix directory creation mode. Unless umask is set to 0 the default umask of the system, commonly 022, will be used and thus it becomes impossible to get the 777 mode.
David Goulet [Wed, 23 Jun 2010 21:17:39 +0000 (17:17 -0400)]
UST marker.h
Modification nécessaire pour faire des custom probes avec trace_mark_tp.
Sous la recommandation de Michel et Mathieu, il était mieux d'utiliser
cela pour les tests de profilage que des trace_mark ou des tracepoints.
Ceci étant dit, les résultats avec un test de profilage que j'ai monté,
contenant 3 tracepoints, le average perevent était de ~65ns.
Maintenant, résultats préliminaires avec les custom probes sur le même
test suite que les trace_mark et tracepoints :
Average time per event : 0.
0000000159 (sec), 0.00002
(msec), 0.01587 (usec), 15.86718 (nsec)
Best time [RUN 5] : 0.
0000000154 (sec), 0.00002
(msec), 0.01536 (usec), 15.35519 (nsec)
Worst time [RUN 6] : 0.
0000000166 (sec), 0.00002
(msec), 0.01659 (usec), 16.59236 (nsec)
Standard Deviation : 0.
0000000004 (sec), 0.00000
(msec), 0.00038 (usec), 0.38116 (nsec)
Quand même! ;)
Bref, je continue mais si tu veux commenter ou proposer des tests, fait
moi signe.
A plus
David
From
e1fc903e0cedfc21895b2ad952bb6127d0b3b853 Mon Sep 17 00:00:00 2001
From: David Goulet <david.goulet@polymtl.ca>
Date: Wed, 23 Jun 2010 17:04:45 -0400
Subject: [PATCH] Fixed __trace_mark_tp_counter with the usage of
DEFINE_MARKER_TP macro. Down to 5 arguments instead of 7
and added registers struct missing. Now, custom probes
can be used within UST with trace_mark_tp function
David Goulet [Wed, 30 Jun 2010 13:04:41 +0000 (09:04 -0400)]
Removing NO_IPI ifdef for memory barrier. The smp_wmb should be used all the time here.
Signed-off-by: David Goulet <david.goulet@polymtl.ca>
Pierre-Marc Fournier [Thu, 1 Jul 2010 04:31:10 +0000 (00:31 -0400)]
Final updates for release 0.5
Pierre-Marc Fournier [Thu, 1 Jul 2010 04:07:37 +0000 (00:07 -0400)]
update doc for next release
Pierre-Marc Fournier [Thu, 1 Jul 2010 02:27:01 +0000 (22:27 -0400)]
fix regression of GDB support
Address of marker was not reported correctly. Fix by Pedro Alves.
Pierre-Marc Fournier [Thu, 1 Jul 2010 02:26:32 +0000 (22:26 -0400)]
tracectl.c: add description comment
Pierre-Marc Fournier [Thu, 1 Jul 2010 02:25:25 +0000 (22:25 -0400)]
update READMEs
Pierre-Marc Fournier [Wed, 2 Jun 2010 15:47:24 +0000 (11:47 -0400)]
add info about what dirs/files are doing
Alexis Hallé [Fri, 28 May 2010 17:10:37 +0000 (13:10 -0400)]
add environment variables to set subbuffer options
UST_SUBBUF_SIZE and UST_SUBBUF_NUM control respectively the size and
number of subbuffers. Options -S and -N in the usttrace script also
control these parameters.
Pierre-Marc Fournier [Mon, 31 May 2010 16:10:35 +0000 (12:10 -0400)]
update README
Alexis Hallé [Wed, 26 May 2010 16:24:18 +0000 (12:24 -0400)]
make RUNLTTV configurable in trace_matches
Pierre-Marc Fournier [Fri, 28 May 2010 16:06:40 +0000 (12:06 -0400)]
update -W help in the usttrace man page
Nils Carlson [Fri, 28 May 2010 08:21:47 +0000 (10:21 +0200)]
Changes testcases in runtests to use TAP
TAP - Test Anything Protocol is an easy to parse test protocol.
Pierre-Marc Fournier [Thu, 27 May 2010 20:10:13 +0000 (16:10 -0400)]
update manual
Pierre-Marc Fournier [Thu, 27 May 2010 20:03:31 +0000 (16:03 -0400)]
update README
Pierre-Marc Fournier [Thu, 27 May 2010 19:58:36 +0000 (15:58 -0400)]
update manual
Pierre-Marc Fournier [Thu, 27 May 2010 16:01:12 +0000 (12:01 -0400)]
block all signals in listener thread
Not doing this can result in a situation where all the other application
threads have a signal blocked, and the listener thread, not having it blocked,
lets the signal handler execute. Therefore, in order to be as transparent as
possible to the application, we have to block signals.
Pierre-Marc Fournier [Wed, 26 May 2010 22:32:59 +0000 (18:32 -0400)]
documentation update
Pierre-Marc Fournier [Wed, 26 May 2010 16:32:36 +0000 (12:32 -0400)]
Replace gettimeofday() with clock_gettime(CLOCK_MONOTONIC,...)
Contributed by Nils Carlson.
Pierre-Marc Fournier [Mon, 24 May 2010 03:55:13 +0000 (23:55 -0400)]
remove mutex_lock, mutex_unlock macros
Oussama El Mfadli [Wed, 12 May 2010 20:12:42 +0000 (16:12 -0400)]
test for two markers on the same line
Alexis Hallé [Thu, 13 May 2010 17:29:21 +0000 (13:29 -0400)]
usttrace man page update
Oussama El Mfadli [Fri, 14 May 2010 20:56:55 +0000 (16:56 -0400)]
Test for a dynamically linked library
Correction of dynamic library marked test
Pierre-Marc Fournier [Fri, 21 May 2010 19:09:44 +0000 (15:09 -0400)]
runtests: remove unimplemented test
Pierre-Marc Fournier [Thu, 20 May 2010 17:10:07 +0000 (13:10 -0400)]
add average script
Pierre-Marc Fournier [Mon, 17 May 2010 16:53:19 +0000 (12:53 -0400)]
add missing ptime for benchmark
Pierre-Marc Fournier [Thu, 13 May 2010 21:08:39 +0000 (17:08 -0400)]
update tracepoints example with api updates
Pierre-Marc Fournier [Tue, 11 May 2010 21:01:07 +0000 (17:01 -0400)]
Update benchmark
Pierre-Marc Fournier [Tue, 27 Apr 2010 20:08:09 +0000 (16:08 -0400)]
fix power of two computation
Pierre-Marc Fournier [Tue, 27 Apr 2010 19:11:57 +0000 (15:11 -0400)]
fix warning
Pierre-Marc Fournier [Tue, 27 Apr 2010 18:50:30 +0000 (14:50 -0400)]
fix bootstrapping
Pierre-Marc Fournier [Tue, 27 Apr 2010 18:40:48 +0000 (14:40 -0400)]
change to silent compilation
Pierre-Marc Fournier [Fri, 23 Apr 2010 15:31:52 +0000 (11:31 -0400)]
Add support for ppc hw tb clock, remove kernelcompat.h
Pierre-Marc Fournier [Fri, 16 Apr 2010 14:28:18 +0000 (10:28 -0400)]
add a .gitignore for java
Pierre-Marc Fournier [Fri, 16 Apr 2010 14:27:47 +0000 (10:27 -0400)]
add custom probes support and update tracepoints
Pierre-Marc Fournier [Fri, 16 Apr 2010 14:17:35 +0000 (10:17 -0400)]
remove some unused code
Pierre-Marc Fournier [Mon, 19 Apr 2010 22:35:44 +0000 (18:35 -0400)]
Port to PowerPC 32
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