packaging: add 'fcommon' to the build flags

Change-Id: I23d98281a15c0287e6cdb47243ff12fc3b9109ba
Signed-off-by: Dongkyun Son <dongkyun.s@samsung.com>

Fix: namespace our gettid wrapper

Since glibc 2.30, a gettid wrapper was added that conflicts with our
static declaration. Namespace our wrapper so there is no conflict,
we'll add support for the glibc provided wrapper in a further commit.

Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
(cherry picked from commit 0f029713c868ef3e868d0dc7297455cb737e606f)

Change-Id: I896e5e838e37096edf941ade786bd7a2a8566321

Cleanup vtid/vpid context caches

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
(cherry picked from commit 98357ffd0125c23387d42d4b706c56077392326d)

Change-Id: Ibeb53ecd773cdda701b90f09b465d82e88130e23

Fix: cache the result of getpid() internally

On Linux we called getpid() directly on each tracepoint and relied on
the glibc pid cache. However, in glibc 2.25, released on 2017-02-05, the
pid cache was removed which results in a getpid syscall on each event
when the vpid context is enabled.

Remove the Linux specific case and use our internal cache all the time.

Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
(cherry picked from commit 6d9b54d845b08d54d3f483f1130b499516588db3)

Change-Id: Ide9a7f3c99061e3b3d9f68cec86fc117dc684be7

Fix asan build

We shoundn't use -fno-common option because lttng uses tentative
definitions. In the case of asan build it is used implicitly, so
we need to disable this option.

Change-Id: Ie613d2194ec7efd097c4c87022a6e186a528f9df
Signed-off-by: Chunseok Lee <chunseok.lee@samsung.com>

Add packaging directory for building lttng-ust

Signed-off-by: Jiyoung Yun <jy910.yun@samsung.com>

Imported Upstream version 2.8.1

Initial empty repository