Add trace support for calloc and realloc.

Signed-off-by: Stefan Seefeld <stefan_seefeld@mentor.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
malloc instrumentation: remove dependency on pthread

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Add trace support for memalign and posix_memalign

Signed-off-by: Stefan Seefeld <stefan_seefeld@mentor.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Merge branch 'master' of git://git.lttng.org/lttng-ust