Merge remote-tracking branch 'stefanha/tracing' into staging

* stefanha/tracing:
  tracetool: handle DTrace keywords 'in', 'next', 'self'
  tracetool: Add MAINTAINERS info
  tracetool: Add support for the 'dtrace' backend
  tracetool: Add support for the 'ust' backend
  tracetool: Add support for the 'simple' backend
  tracetool: Add support for the 'stderr' backend
  tracetool: Add module for the 'h' format
  tracetool: Add module for the 'c' format
  tracetool: Rewrite infrastructure as python modules

MAINTAINERS

@@ -553,6 +553,8 @@ Tracing
 M: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
 S: Maintained
 F: trace/
+F: scripts/tracetool.py
+F: scripts/tracetool/
 F: docs/tracing.txt
 T: git://github.com/stefanha/qemu.git tracing
 

Makefile.objs

@@ -378,12 +378,12 @@ else
 trace.h: trace.h-timestamp
 endif
 trace.h-timestamp: $(SRC_PATH)/trace-events $(BUILD_DIR)/config-host.mak
-	$(call quiet-command,sh $(SRC_PATH)/scripts/tracetool --$(TRACE_BACKEND) -h < $< > $@,"  GEN   trace.h")
+	$(call quiet-command,$(PYTHON) $(SRC_PATH)/scripts/tracetool.py --format=h --backend=$(TRACE_BACKEND) < $< > $@,"  GEN   trace.h")
 	@cmp -s $@ trace.h || cp $@ trace.h
 
 trace.c: trace.c-timestamp
 trace.c-timestamp: $(SRC_PATH)/trace-events $(BUILD_DIR)/config-host.mak
-	$(call quiet-command,sh $(SRC_PATH)/scripts/tracetool --$(TRACE_BACKEND) -c < $< > $@,"  GEN   trace.c")
+	$(call quiet-command,$(PYTHON) $(SRC_PATH)/scripts/tracetool.py --format=c --backend=$(TRACE_BACKEND) < $< > $@,"  GEN   trace.c")
 	@cmp -s $@ trace.c || cp $@ trace.c
 
 trace.o: trace.c $(GENERATED_HEADERS)
@@ -396,7 +396,7 @@ trace-dtrace.h: trace-dtrace.dtrace
 # rule file. So we use '.dtrace' instead
 trace-dtrace.dtrace: trace-dtrace.dtrace-timestamp
 trace-dtrace.dtrace-timestamp: $(SRC_PATH)/trace-events $(BUILD_DIR)/config-host.mak
-	$(call quiet-command,sh $(SRC_PATH)/scripts/tracetool --$(TRACE_BACKEND) -d < $< > $@,"  GEN   trace-dtrace.dtrace")
+	$(call quiet-command,$(PYTHON) $(SRC_PATH)/scripts/tracetool.py --format=d --backend=$(TRACE_BACKEND) < $< > $@,"  GEN   trace-dtrace.dtrace")
 	@cmp -s $@ trace-dtrace.dtrace || cp $@ trace-dtrace.dtrace
 
 trace-dtrace.o: trace-dtrace.dtrace $(GENERATED_HEADERS)

Makefile.target

@@ -59,12 +59,13 @@ TARGET_TYPE=system
 endif
 
 $(QEMU_PROG).stp: $(SRC_PATH)/trace-events
-	$(call quiet-command,sh $(SRC_PATH)/scripts/tracetool \
-		--$(TRACE_BACKEND) \
-		--binary $(bindir)/$(QEMU_PROG) \
-		--target-arch $(TARGET_ARCH) \
-		--target-type $(TARGET_TYPE) \
-		--stap < $(SRC_PATH)/trace-events > $(QEMU_PROG).stp,"  GEN   $(QEMU_PROG).stp")
+	$(call quiet-command,$(PYTHON) $(SRC_PATH)/scripts/tracetool.py \
+		--format=stap \
+		--backend=$(TRACE_BACKEND) \
+		--binary=$(bindir)/$(QEMU_PROG) \
+		--target-arch=$(TARGET_ARCH) \
+		--target-type=$(TARGET_TYPE) \
+		< $(SRC_PATH)/trace-events > $(QEMU_PROG).stp,"  GEN   $(QEMU_PROG).stp")
 else
 stap:
 endif

configure

@@ -1097,7 +1097,7 @@ echo "  --disable-docs           disable documentation build"
 echo "  --disable-vhost-net      disable vhost-net acceleration support"
 echo "  --enable-vhost-net       enable vhost-net acceleration support"
 echo "  --enable-trace-backend=B Set trace backend"
-echo "                           Available backends:" $("$source_path"/scripts/tracetool --list-backends)
+echo "                           Available backends:" $($python "$source_path"/scripts/tracetool.py --list-backends)
 echo "  --with-trace-file=NAME   Full PATH,NAME of file to store traces"
 echo "                           Default:trace-<pid>"
 echo "  --disable-spice          disable spice"
@@ -2670,7 +2670,7 @@ fi
 ##########################################
 # check if trace backend exists
 
-sh "$source_path/scripts/tracetool" "--$trace_backend" --check-backend > /dev/null 2> /dev/null
+$python "$source_path/scripts/tracetool.py" "--backend=$trace_backend" --check-backend  > /dev/null 2> /dev/null
 if test "$?" -ne 0 ; then
   echo
   echo "Error: invalid trace backend"