qemu/trace
Stefan Hajnoczi ae2990c259 osdep: initialize glib threads in all QEMU tools
glib versions prior to 2.31.0 require an explicit g_thread_init() call
to enable multi-threading.

Failure to initialize threading causes glib to take single-threaded code
paths without synchronization.  For example, the g_slice allocator will
crash due to race conditions.

Fix this for all QEMU tool programs (qemu-nbd, qemu-io, qemu-img) by
moving the g_thread_init() call from vl.c:main() into a new
osdep.c:thread_init() constructor function.

thread_init() has __attribute__((constructor)) and is automatically
invoked by the runtime during startup.

We can now drop the "simple" trace backend's g_thread_init() call since
thread_init() already called it.

Note that we must keep coroutine-gthread.c's g_thread_init() call which
is located in a constructor function.  There is no guarantee for
constructor function ordering so thread_init() may only be called later.

Reported-by: Mario de Chenno <mario.dechenno@unina2.it>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-03-25 13:39:31 +01:00
..
control-internal.h trace: Fix build warnings for Win32 build 2014-03-12 14:19:58 +01:00
control.c trace: Provide a detailed event control interface 2013-03-28 14:19:57 +01:00
control.h trace: Provide a detailed event control interface 2013-03-28 14:19:57 +01:00
default.c trace: [default] Port to generic event information and new control interface 2013-03-28 14:19:57 +01:00
event-internal.h trace: Provide a generic tracing event descriptor 2013-03-28 14:19:57 +01:00
ftrace.c trace: Add ftrace tracing backend 2013-05-03 13:58:09 +02:00
ftrace.h trace: Add ftrace tracing backend 2013-05-03 13:58:09 +02:00
Makefile.objs Adapt Makefiles to the new LTTng ust interface 2014-02-19 11:08:53 +01:00
simple.c osdep: initialize glib threads in all QEMU tools 2014-03-25 13:39:31 +01:00
simple.h trace: [simple] Port to generic event information and new control interface 2013-03-28 14:19:57 +01:00
stderr.c trace: [stderr] Port to generic event information and new control interface 2013-03-28 14:19:57 +01:00