Fix: Use distinct variables for ret and discarded_events

Fix coverity #1352682

Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

Fix: Don't try to show manpage when argv is null

Fixes coverity #1353461

Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

Fix: Use secure_getenv() in get_man_bin_path

Fixes coverity #1353462

Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

Fix: illegal memory access in test_create_ust_event_exclusion

Found by Coverity:
CID 1243019 (#1 of 1): Buffer not null terminated
(BUFFER_SIZE_WARNING)1. buffer_size_warning: Calling strncpy with a
maximum size argument of 256 bytes on destination array ev.name of size
256 bytes might leave the destination string unterminated.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

Fix: illegal memory access in test_create_ust_event

Found by Coverity:
CID 1243026 (#1 of 1): Buffer not null terminated
(BUFFER_SIZE_WARNING)1. buffer_size_warning: Calling strncpy with a
maximum size argument of 256 bytes on destination array ev.name of size
256 bytes might leave the destination string unterminated.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

Fix: illegal memory access in test_create_kernel_event

Found by Coverity:
CID 1243030 (#1 of 1): Buffer not null terminated (BUFFER_SIZE_WARNING)1.
buffer_size_warning: Calling strncpy with a maximum size argument of 256
bytes on destination array ev.name of size 256 bytes might leave the
destination string unterminated.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

Fix: illegal memory access in test_create_ust_channel

Found by Coverity:
CID 1243032 (#1 of 1): Buffer not null terminated (BUFFER_SIZE)1.
buffer_size: Calling strncpy with a source string whose length (8 chars)
is greater than or equal to the size argument (8) will fail to
null-terminate attr.name.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

Fix: illegal memory access in send_viewer_streams

Found by Coverity:

CID 1243037 (#1 of 2): Buffer not null terminated
(BUFFER_SIZE_WARNING)18. buffer_size_warning: Calling strncpy with a
maximum size argument of 4096 bytes on destination array
send_stream.path_name of size 4096 bytes might leave the destination
string unterminated.

CID 1243037 (#2 of 2): Buffer not null terminated
(BUFFER_SIZE_WARNING)18. buffer_size_warning: Calling strncpy with a
maximum size argument of 255 bytes on destination array
send_stream.channel_name of size 255 bytes might leave the destination
string unterminated.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

Simplify rcu locking in viewer_list_sessions

Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

Fix: illegal memory access in viewer_list_sessions

Found by Coverity:

CID 1243025 (#1 of 2): Buffer not null terminated
(BUFFER_SIZE_WARNING)17. buffer_size_warning: Calling strncpy with a
maximum size argument of 64 bytes on destination array
send_session->hostname of size 64 bytes might leave the destination
string unterminated.

CID 1243025 (#2 of 2): Buffer not null terminated
(BUFFER_SIZE_WARNING)17. buffer_size_warning: Calling strncpy with a
maximum size argument of 255 bytes on destination array
send_session->session_name of size 255 bytes might leave the destination
string unterminated.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

Fix: illegal memory access in relayd_add_stream

Found by Coverity:

CID 1243017 (#1 of 4): Buffer not null terminated
(BUFFER_SIZE_WARNING)14. buffer_size_warning: Calling strncpy with a
maximum size argument of 264 bytes on destination array msg.channel_name
of size 264 bytes might leave the destination string unterminated.

ID 1243017 (#2 of 4): Buffer not null terminated
(BUFFER_SIZE_WARNING)14. buffer_size_warning: Calling strncpy with a
maximum size argument of 264 bytes on destination array
msg_2_2.channel_name of size 264 bytes might leave the destination
string unterminated.

CID 1243017 (#3 of 4): Buffer not null terminated
(BUFFER_SIZE_WARNING)15. buffer_size_warning: Calling strncpy with a
maximum size argument of 4096 bytes on destination array msg.pathname of
size 4096 bytes might leave the destination string unterminated.

CID 1243017 (#4 of 4): Buffer not null terminated
(BUFFER_SIZE_WARNING)15. buffer_size_warning: Calling strncpy with a
maximum size argument of 4096 bytes on destination array
msg_2_2.pathname of size 4096 bytes might leave the destination string
unterminated.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

Fix: illegal memory access in relayd_create_session_2_4

Found by Coverity:
CID 1243024 (#1 of 2): Buffer not null terminated
(BUFFER_SIZE_WARNING)2. buffer_size_warning: Calling strncpy with a
maximum size argument of 255 bytes on destination array msg.session_name
of size 255 bytes might leave the destination string unterminated.

CID 1243024 (#2 of 2): Buffer not null terminated
(BUFFER_SIZE_WARNING)3. buffer_size_warning: Calling strncpy with a
maximum size argument of 64 bytes on destination array msg.hostname of
size 64 bytes might leave the destination string unterminated.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

Fix: illegal memory access in session_create

Found by Coverity:

CID 1323138 (#1 of 2): Buffer not null terminated
(BUFFER_SIZE_WARNING)3. buffer_size_warning: Calling strncpy with a
maximum size argument of 64 bytes on destination array session->hostname
of size 64 bytes might leave the destination string unterminated.

CID 1323138 (#2 of 2): Buffer not null terminated
(BUFFER_SIZE_WARNING)3. buffer_size_warning: Calling strncpy with a
maximum size argument of 255 bytes on destination array
session->session_name of size 255 bytes might leave the destination
string unterminated.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

Fix: illegal memory access in consumer_set_subdir

Found by Coverity:
CID 1243015 (#1 of 1): Buffer not null terminated
(BUFFER_SIZE_WARNING)8. buffer_size_warning: Calling strncpy with a
maximum size argument of 4096 bytes on destination array
consumer->subdir of size 4096 bytes might leave the destination string
unterminated.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

Fix: illegal memory access in syscall_init_table

Found by Coverity:
CID 1243021 (#1 of 1): Buffer not null terminated
(BUFFER_SIZE_WARNING)25. buffer_size_warning: Calling strncpy with a
maximum size argument of 255 bytes on destination array (syscall_table +
index).name of size 255 bytes might leave the destination string
unterminated.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

Fix: illegal memory access in write_pidfile

Found by Coverity:
CID 1243023 (#1 of 1): Buffer not null terminated
(BUFFER_SIZE_WARNING)3. buffer_size_warning: Calling strncpy with a
maximum size argument of 4096 bytes on destination array pidfile_path of
size 4096 bytes might leave the destination string unterminated.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

Fix: illegal memory access in list_lttng_channels

Found by Coverity:
CID 1243018 (#1 of 1): Buffer not null terminated
(BUFFER_SIZE_WARNING)11. buffer_size_warning: Calling strncpy with a
maximum size argument of 256 bytes on destination array (channels +
i).name of size 256 bytes might leave the destination string
unterminated.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

Fix: illegal memory access in cmd_snapshot_record

Found by Coverity:
CID 1243027 (#1 of 1): Buffer not null terminated
(BUFFER_SIZE_WARNING)20. buffer_size_warning: Calling strncpy with a
maximum size argument of 255 bytes on destination array tmp_output.name
of size 255 bytes might leave the destination string unterminated.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

Fix: illegal memory access in output_init

Found by Coverity:

CID 1243028 (#1 of 2): Buffer not null terminated
(BUFFER_SIZE_WARNING)5. buffer_size_warning: Calling strncpy with a
maximum size argument of 255 bytes on destination array output->name of
size 255 bytes might leave the destination string unterminated.

CID 1243028 (#2 of 2): Buffer not null terminated
(BUFFER_SIZE_WARNING)10. buffer_size_warning: Calling strncpy with a
maximum size argument of 4096 bytes on destination array
output->consumer->dst.trace_path of size 4096 bytes might leave the
destination string unterminated.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

Fix: illegal memory access in consumer_set_network_uri

Found by Coverity:
CID 1243029 (#1 of 1): Buffer not null terminated
(BUFFER_SIZE_WARNING)31. buffer_size_warning: Calling strncpy with a
maximum size argument of 4096 bytes on destination array obj->subdir of
size 4096 bytes might leave the destination string unterminated.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

Fix: illegal memory access in cmd_snapshot_list_outputs

Found by Coverity:

CID 1243031 (#1 of 2): Buffer not null terminated
(BUFFER_SIZE_WARNING)22. buffer_size_warning: Calling strncpy with a
maximum size argument of 4096 bytes on destination array (list +
idx).ctrl_url of size 4096 bytes might leave the destination string
unterminated.

CID 1243031 (#2 of 2): Buffer not null terminated
(BUFFER_SIZE_WARNING)26. buffer_size_warning: Calling strncpy with a
maximum size argument of 255 bytes on destination array (list +
idx).name of size 255 bytes might leave the destination string
unterminated.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

Fix: illegal memory access in list_events

Found by Coverity:
CID 1243022 (#1 of 1): Buffer not null terminated
(BUFFER_SIZE_WARNING)23. buffer_size_warning: Calling strncpy with a
maximum size argument of 256 bytes on destination array (tmp_events +
i).name of size 256 bytes might leave the destination string
unterminated.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

Fix: illegal memory access in disable_event

Found by Coverity:
CID 1243016 (#1 of 1): Buffer not null terminated
(BUFFER_SIZE_WARNING)14. buffer_size_warning: Calling strncpy with a
maximum size argument of 256 bytes on destination array msg.name of size
256 bytes might leave the destination string unterminated.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

Fix: illegal memory access in enable_event

Found by Coverity:
CID 1243033 (#1 of 1): Buffer not null terminated
(BUFFER_SIZE_WARNING)16. buffer_size_warning: Calling strncpy with a
maximum size argument of 256 bytes on destination array msg.name of size
256 bytes might leave the destination string unterminated.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

Fix: illegal memory access in add_uri_to_consumer

Found by Coverity:

CID 1243038 (#1 of 1): Buffer not null terminated
(BUFFER_SIZE_WARNING)15. buffer_size_warning: Calling strncpy with a
maximum size argument of 4096 bytes on destination array
consumer->dst.trace_path of size 4096 bytes might leave the destination
string unterminated.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

Fix: illegal memory access in init_ust_event_from_agent_event

Found by Coverity:
CID 1321741 (#1 of 1): Buffer not null terminated
(BUFFER_SIZE_WARNING)1. buffer_size_warning: Calling strncpy with a
maximum size argument of 256 bytes on destination array
ust_event->attr.name of size 256 bytes might leave the destination
string unterminated.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

Simplify free() of channel attribute

Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

Fix: illegal memory access in _cmd_enable_event

Found by Coverity:

CID 1321742 (#1 of 2): Buffer not null terminated
(BUFFER_SIZE_WARNING)21. buffer_size_warning: Calling strncpy with a
maximum size argument of 256 bytes on destination array attr->name of
size 256 bytes might leave the destination string unterminated.

CID 1321742 (#2 of 2): Buffer not null terminated
(BUFFER_SIZE_WARNING)22. buffer_size_warning: Calling strncpy with a
maximum size argument of 256 bytes on destination array attr->name of
size 256 bytes might leave the destination string unterminated.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

Implement lttng_strncpy safe string copy

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

Add missing symbol to preserve ABI compatibility of liblttng-ctl

Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

Fix: loading a session prints an error message but the load is successful

Fixes #1013

Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

Snapshot warning if there are no events in one of the domains

Remove the "no data" check from the UST snapshot code since

1) It would report that no data was recorded in the snapshot even
   if the kernel tracer had recorded events,
2) The kernel consumer does not seem to report such a condition,
   making it hard to perform the check without modifying the
   consumer.

The consumer interfaces could be modified to reliably provide
this information in the future.

However, this warning is not provided in the other tracing
modes, making its usefulness questionable. An empty snapshot is
still a valid trace and users should not always expect a trace
to contain events. Moreover, "warning" that no data was produced
implies an error may have occured and is probably as confusing
as opening an empty trace to the average user.

Fixes #1012

Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

Clarify kernel version check error messages

Refs #949

Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

Tests: same event name with different descriptor on load

Refs #959

Signed-off-by: Jonathan Rajotte <jonathan.rajotte-julien@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

Fix: load event state (enabled/disabled) correctly

This bug fix is a workaround due to limitations of lttng_disable_event_ext
regarding the disabling of events with similar name but different
characteristics. Although lttng_disable_event_ext provides support for
disabling by name and filter string it does not support exclusion.

The loading of events is cut in 3 phases.

1 - Create all events regardless of their state.
2 - Disable all events.
3 - Enable only the events with the 'enabled' state.

Fixes #959

Signed-off-by: Jonathan Rajotte <jonathan.rajotte-julien@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

Fix: Error reported if no domain is provided for start/stop

Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

Handle unknown domain in MI

Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

Handle unknown domain on session start

Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

Fix: loading of live session within userspace domains

The output of a session is session-specific and not bound to
a domain. The "lttng_set_consumer_url" already acts on a
session-wide basis.

Fixes #973

Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

Test: expose session url bug on load with multiple domains

When loading a live session with multiple domain lttng return code
21 which corresponds to the URL being already set.

Refs #973

Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

OOT build fix: asciidoc.conf is now generated at configure

asciidoc.conf is now generated at configure-time and must be
retrieved from the build directory, not the source directory.
This causes the out-of-tree build to fail.

Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

Snapshot: record: use same datetime for snapshot folder output

Make sure that the ust snapshot is put under the same folder as the
kernel snapshot.

Fixes #970

Signed-off-by: Jonathan Rajotte <jonathan.rajotte-julien@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

Refactor: move the snapshot type check into output type check

Since for both sub-session type the boilerplate is the same
simply move the check for sub-session type presence to the inner
check of type output.

Signed-off-by: Jonathan Rajotte <jonathan.rajotte-julien@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

ust-metadata.c: nest/indent enumeration entries

Signed-off-by: Philippe Proulx <eeppeliteloop@gmail.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

lttng.c: show basic help when no arguments are provided

Fixes #1011

Signed-off-by: Philippe Proulx <eeppeliteloop@gmail.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

Define command short descriptions in configure.ac

Refs #1011

Signed-off-by: Philippe Proulx <eeppeliteloop@gmail.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

lttng-relayd(8): $HOME -> $LTTNG_HOME

Signed-off-by: Philippe Proulx <eeppeliteloop@gmail.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

doc/man: use propagated default values in man pages

Signed-off-by: Philippe Proulx <eeppeliteloop@gmail.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

Propagate default values from configure.ac to asciidoc.conf

Signed-off-by: Philippe Proulx <eeppeliteloop@gmail.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

Define default values in configure.ac

This patch moves the definitions of the various default values of
LTTng-tools to configure.ac, so that the code and the man pages can
share the same default values.

Signed-off-by: Philippe Proulx <eeppeliteloop@gmail.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

lttng-load(1): use lists to explain the input path behaviour

Signed-off-by: Philippe Proulx <eeppeliteloop@gmail.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

lttng-sessiond(8): fix load directories and behaviour

Signed-off-by: Philippe Proulx <eeppeliteloop@gmail.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

lttng-load(1): specify default search order

Signed-off-by: Philippe Proulx <eeppeliteloop@gmail.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

doc/man: use configured directories in man pages

Signed-off-by: Philippe Proulx <eeppeliteloop@gmail.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

doc/man/asciidoc.conf: add doctype-manpage conditions

Signed-off-by: Philippe Proulx <eeppeliteloop@gmail.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

doc/man: linklttng macro -> man macro

This macro is shorter, and some referenced man pages are not
LTTng man pages, so the linklttng name makes little sense.

Signed-off-by: Philippe Proulx <eeppeliteloop@gmail.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

doc/man/Makefile.am: add failing dist-hook on --disable-man-pages

Signed-off-by: Philippe Proulx <eeppeliteloop@gmail.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

doc/man/Makefile.am: fix top comment

Signed-off-by: Philippe Proulx <eeppeliteloop@gmail.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

configure.ac: fix --enable-man-pages help string

Signed-off-by: Philippe Proulx <eeppeliteloop@gmail.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

Fix: standardize parser/lexer building

This patch makes the build system act as follows:

    if in Git repo:
        require bison/flex (configure)
        build parser/lexer (make, make clean)
    else:
        if bison exists:
            build parser (make, make clean)
        else:
            warn that bison is missing (configure)
            create "error" parser target in Makefile (make)
            do not clean parser (make clean not available)

        if flex exists:
            build lexer (make, make clean)
        else:
            warn that flex is missing (configure)
            create "error" lexer target in Makefile (make)
            do not clean lexer (make clean not available)

Signed-off-by: Philippe Proulx <eeppeliteloop@gmail.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

Fix: standardize man pages building/installing

This patch makes the build system act as follows:

    if --enable-man-pages:
        if in Git repo:
            require asciidoc/xmlto (configure)
            build man pages (make, make clean)
            install man pages (make install)
            distribute man pages (make dist)
        else:
            if asciidoc/xmlto both exist:
                build man pages (make, make clean)
                install man pages (make install)
                distribute man pages (make dist)
            else:
                warn that asciidoc/xmlto are missing (configure)
                create "error" man page targets in Makefile (make)
                do not clean man pages (make clean not available)
                install distributed man pages (make install)
                distribute distributed man pages (make dist)
    else if --disable-man-pages:
        do not build man pages (make, make clean not available)
        do not install man pages (make install not available)
        do not distribute man pages (make dist not available)

Signed-off-by: Philippe Proulx <eeppeliteloop@gmail.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

configure.ac: check for an existing liburcu-cds symbol

Fixes #1001

Signed-off-by: Philippe Proulx <eeppeliteloop@gmail.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

configure.ac: use macro for wrong liburcu error message

Signed-off-by: Philippe Proulx <eeppeliteloop@gmail.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

Hide parse_application_context utility function

Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

Re-add deprecated MI symbols to preserve ABI compatibility

Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

Hide new MI symbols introduced as part of 2.8

Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

Re-add default size symbols which were erroneously exposed

Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

Hide config symbols introduced in 2.8

Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

Hide internal _lttng_destroy_session symbol

Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

Hide bytecode symbol iterator API symbols

Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

Tests: wording of trace_matches is misleading

trace_matches reports a number of "events found" in a trace while it
actually counts the number of event_name matches.

Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

Test lttng-modules clock override plugin

[ For both master and stable-2.8 branches. ]

Fixes: #939
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

Warning fix: uninitialized variable may be used

GCC warns that discarded_events and lost_packets may be used
uninitialized (NULL).

Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

Tests: Replace prove by autotools tap runner

This patch removes the dependency on the prove perl script
to run the TAP test suite. It replaces it with the autotools
shell TAP driver that only requires a shell and awk.

Custom arguments can be passed to the test runner with
env variables as follow:

  env LOG_DRIVER_FLAGS='--comments --ignore-exit' \
      TESTS='foo.test baz.test' make -e check

This tap driver also creates a log file for each test that
can then be used by another system to build a test report.

Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

Drop installcheck target

The installcheck target is supposed to be used to run tests on the
installed files, however our current implementation runs the exact same
tests in the build directory as the check target, which makes it useless.

Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

Fix: distcheck requires that we clean version.h

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

Fix: configure: forbid Python bindings if shared libraries are disabled

Fixes: #977
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

Fix: tests: don't match command line arguments, match static build binary names

Don't match command line arguments for lttng-sessiond, lttng-relayd,
lttng-consumerd, lttng-runas, lt-lttng-sessiond, lt-lttng-relayd, only
match the executables.

Otherwise, if any unrelated command on the system match those as
arguments (e.g. text editor opening a text file), it hangs the tests.

Static build don't generate a lt-lttng-sessiond as binary name. Expect
lttng-session for this case.

Static build don't generate a lt-lttng-relayd as binary name.  Expect
lttng-relayd for this case.

Fixes: #977
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

Fix: tests: skip tests on static build

Skip tests that depend on shared objects on static build rather than
bailing out, which will let the overall test suite succeed.

Fixes: #977
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

Fix: tests: don't build dynamic lib tests if support disabled

Fixes: #977
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

bootstrap: Standardize on autoreconf -vi

Don't overwrite already generated files.

Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

doc/man: add notes about shell escaping

Signed-off-by: Philippe Proulx <eeppeliteloop@gmail.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

Fix: doc/man/Makefile.am for OOT builds

Signed-off-by: Philippe Proulx <eeppeliteloop@gmail.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

Move unix.h wrapper from sessiond-comm to common

Fixes #951

Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

Fix: update tests following renaming of UST statedump event

This fixes regression tests that failed due to the renaming of
`lttng_ust_statedump:soinfo` to `lttng_ust_statedump:bin_info`.

Signed-off-by: Antoine Busque <abusque@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

Typo: catched -> caught

Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

Add comment describing ioctl number duplication

Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

Test: kill sessiond,relayd and background children on SIGTERM/SIGINT

Signed-off-by: Jonathan Rajotte <jonathan.rajotte-julien@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

Docs: Remove unnecessary exclamation mark

Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

Docs: fix wording of dependency

Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

Docs: fix "daemon" typo in README.md

Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

Fix: Use get_domain_str on add context

Fixes #1006

Signed-off-by: Jonathan Rajotte <jonathan.rajotte-julien@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

Warning fix: possible use of uninitialized variable

GCC reports that discarded_events and lost_packets may be used
uninitialized. Assert that both pointers are not NULL to
silence the warning.

Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

doc/man: add FILES section

Signed-off-by: Philippe Proulx <eeppeliteloop@gmail.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

Test: xsd validation of long path (length > 255)

Signed-off-by: Jonathan Rajotte <jonathan.rajotte-julien@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

Fix: xsd: urls and paths are not of type name_type but string

[v2] Update commit subject and fix spelling in of commit message.

name_type is upper bounded to 255 which make no sense for a path or url.

Reported-by: Marc-Andre Laperle <marc-andre.laperle@ericsson.com>
Signed-off-by: Jonathan Rajotte <jonathan.rajotte-julien@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

Fix: do not return error on LTTNG_ERR_SNAPSHOT_NODATA

A warning is fine since the user has no control on
whether or not applications (or the kernel) have
produced any event between the start of the tracing
session and the recording of the snapshot.

MI wise the command is not a success since nothing was
recorded. The command line return code is CMD_SUCCESS.

refs #1002

Signed-off-by: Jonathan Rajotte <jonathan.rajotte-julien@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

Fix: Set loopback adress in set_ip_addr if gethostbyname2 fails

Some systems may not have "localhost" defined in accordance with IETF
RFC 6761. According to this RFC, applications may recognize
"localhost" names as special and resolve to the appropriate loopback
address.

We choose to use the system name resolution API first to honor its
network configuration. If this fails, we resolve to the appropriate
loopback address. This is done to accomodate systems which may want to
start tracing before their network configured.

Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

Fix: d_type validity is not guaranteed on all nfs versions

When using lttng-crash on files mounted on a nfs mount the d_type from
the dirent struct is not necessarily set and results in a DT_UNKNOWN
d_type.

stat() provides the valid information on an nfs mount.

Signed-off-by: Jonathan Rajotte <jonathan.rajotte-julien@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

Fix: doc/man: lttng-add-context(1): add missing option macro

Signed-off-by: Philippe Proulx <eeppeliteloop@gmail.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>