Merge remote-tracking branch 'remotes/stefanha/tags/tracing-pull-request' into staging

# gpg: Signature made Wed 03 Feb 2016 15:47:34 GMT using RSA key ID 81AB73C8
# gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>"
# gpg:                 aka "Stefan Hajnoczi <stefanha@gmail.com>"

* remotes/stefanha/tags/tracing-pull-request:
  log: add "-d trace:PATTERN"
  trace: switch default backend to "log"
  trace: convert stderr backend to log
  log: move qemu-log.c into util/ directory
  log: do not unnecessarily include qom/cpu.h
  trace: add "-trace help"
  trace: add "-trace enable=..."
  trace: no need to call trace_backend_init in different branches now
  trace: split trace_init_file out of trace_init_backends
  trace: split trace_init_events out of trace_init_backends
  trace: fix documentation
  trace: track enabled events in a separate array
  trace: count number of enabled events

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

1 files changed, 5 insertions, 4 deletions

diff --git a/scripts/tracetool/backend/stderr.py b/scripts/tracetool/backend/log.py
index ca58054621..a62c310705 100644
--- a/scripts/tracetool/backend/stderr.py
+++ b/scripts/tracetool/backend/log.py
@@ -25,6 +25,7 @@ def generate_h_begin(events):
         '#include <sys/types.h>',
         '#include <unistd.h>',
         '#include "trace/control.h"',
+        '#include "qemu/log.h"',
         '')
 
 
@@ -36,10 +37,10 @@ def generate_h(event):
     out('    if (trace_event_get_state(%(event_id)s)) {',
         '        struct timeval _now;',
         '        gettimeofday(&_now, NULL);',
-        '        fprintf(stderr, "%%d@%%zd.%%06zd:%(name)s " %(fmt)s "\\n",',
-        '                        getpid(),',
-        '                        (size_t)_now.tv_sec, (size_t)_now.tv_usec',
-        '                        %(argnames)s);',
+        '        qemu_log_mask(LOG_TRACE, "%%d@%%zd.%%06zd:%(name)s " %(fmt)s "\\n",',
+        '                      getpid(),',
+        '                      (size_t)_now.tv_sec, (size_t)_now.tv_usec',
+        '                      %(argnames)s);',
         '    }',
         event_id="TRACE_" + event.name.upper(),
         name=event.name,