With this option the user can perform multiple builds of QEMU with different
tracing event properties.
Signed-off-by: Lluís Vilanova <vilan...@ac.upc.edu>
---
Makefile.target | 2 +-
configure | 19 +++++++++++++++++++
trace/Makefile.objs | 10 +++++-----
3 files changed, 25 insertions(+), 6 deletions(-)
diff --git a/Makefile.target b/Makefile.target
index 2bd6d14..f382559 100644
--- a/Makefile.target
+++ b/Makefile.target
@@ -47,7 +47,7 @@ else
TARGET_TYPE=system
endif
-$(QEMU_PROG).stp: $(SRC_PATH)/trace-events
+$(QEMU_PROG).stp: $(TRACE_EVENTS)
$(call quiet-command,$(TRACETOOL) \
--format=stap \
--backend=$(TRACE_BACKEND) \
diff --git a/configure b/configure
index 73df181..a3bd336 100755
--- a/configure
+++ b/configure
@@ -221,6 +221,7 @@ blobs="yes"
pkgversion=""
pie=""
zero_malloc=""
+trace_events=`dirname $0`/trace-events
trace_backend="nop"
trace_file="trace"
spice=""
@@ -639,6 +640,8 @@ for opt do
;;
--target-list=*) target_list="$optarg"
;;
+ --with-trace-events=*) trace_events="$optarg"
+ ;;
--enable-trace-backend=*) trace_backend="$optarg"
;;
--with-trace-file=*) trace_file="$optarg"
@@ -1158,6 +1161,7 @@ echo " --enable-docs enable documentation
build"
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 " --with-trace-events=PATH file with tracing events description
(default: $trace_events)"
echo " --enable-trace-backend=B Set trace backend"
echo " Available backends:" $($python
"$source_path"/scripts/tracetool.py --list-backends)
echo " --with-trace-file=NAME Full PATH,NAME of file to store traces"
@@ -3009,6 +3013,18 @@ if compile_prog "" "" ; then
fi
##########################################
+# check if trace-events file exists
+
+if test ! -f "$trace_events"; then
+ echo
+ echo "Error: the given trace-events file does not exist"
+ echo
+ exit 1
+else
+ trace_events=`readlink -f "$trace_events"`
+fi
+
+##########################################
# check if trace backend exists
$python "$source_path/scripts/tracetool.py" "--backend=$trace_backend"
--check-backend > /dev/null 2> /dev/null
@@ -3418,6 +3434,7 @@ echo "sigev_thread_id $sigev_thread_id"
echo "uuid support $uuid"
echo "libcap-ng support $cap_ng"
echo "vhost-net support $vhost_net"
+echo "Trace events $trace_events"
echo "Trace backend $trace_backend"
echo "Trace output file $trace_file-<pid>"
echo "spice support $spice ($spice_protocol_version/$spice_server_version)"
@@ -3810,6 +3827,8 @@ bsd)
;;
esac
+echo "TRACE_EVENTS=$trace_events" >> $config_host_mak
+
# use default implementation for tracing backend-specific routines
trace_default=yes
echo "TRACE_BACKEND=$trace_backend" >> $config_host_mak
diff --git a/trace/Makefile.objs b/trace/Makefile.objs
index a043072..bf0a965 100644
--- a/trace/Makefile.objs
+++ b/trace/Makefile.objs
@@ -4,7 +4,7 @@
# Auto-generated event descriptions
$(obj)/generated-events.h: $(obj)/generated-events.h-timestamp
-$(obj)/generated-events.h-timestamp: $(SRC_PATH)/trace-events
+$(obj)/generated-events.h-timestamp: $(TRACE_EVENTS)
$(call quiet-command,$(TRACETOOL) \
--format=events-h \
--backend=events \
@@ -12,7 +12,7 @@ $(obj)/generated-events.h-timestamp: $(SRC_PATH)/trace-events
@cmp -s $@ $(patsubst %-timestamp,%,$@) || cp $@ $(patsubst
%-timestamp,%,$@)
$(obj)/generated-events.c: $(obj)/generated-events.c-timestamp
$(BUILD_DIR)/config-host.mak
-$(obj)/generated-events.c-timestamp: $(SRC_PATH)/trace-events
+$(obj)/generated-events.c-timestamp: $(TRACE_EVENTS)
$(call quiet-command,$(TRACETOOL) \
--format=events-c \
--backend=events \
@@ -27,7 +27,7 @@ util-obj-y += generated-events.o
$(obj)/generated-tracers.h: $(obj)/generated-tracers.h-timestamp
@cmp -s $< $@ || cp $< $@
-$(obj)/generated-tracers.h-timestamp: $(SRC_PATH)/trace-events
$(BUILD_DIR)/config-host.mak
+$(obj)/generated-tracers.h-timestamp: $(TRACE_EVENTS)
$(BUILD_DIR)/config-host.mak
$(call quiet-command,$(TRACETOOL) \
--format=h \
--backend=$(TRACE_BACKEND) \
@@ -39,7 +39,7 @@ $(obj)/generated-tracers.h-timestamp:
$(SRC_PATH)/trace-events $(BUILD_DIR)/conf
ifneq ($(TRACE_BACKEND),dtrace)
$(obj)/generated-tracers.c: $(obj)/generated-tracers.c-timestamp
@cmp -s $< $@ || cp $< $@
-$(obj)/generated-tracers.c-timestamp: $(SRC_PATH)/trace-events
$(BUILD_DIR)/config-host.mak
+$(obj)/generated-tracers.c-timestamp: $(TRACE_EVENTS)
$(BUILD_DIR)/config-host.mak
$(call quiet-command,$(TRACETOOL) \
--format=c \
--backend=$(TRACE_BACKEND) \
@@ -57,7 +57,7 @@ endif
# rule file. So we use '.dtrace' instead
ifeq ($(TRACE_BACKEND),dtrace)
$(obj)/generated-tracers.dtrace: $(obj)/generated-tracers.dtrace-timestamp
-$(obj)/generated-tracers.dtrace-timestamp: $(SRC_PATH)/trace-events
$(BUILD_DIR)/config-host.mak
+$(obj)/generated-tracers.dtrace-timestamp: $(TRACE_EVENTS)
$(BUILD_DIR)/config-host.mak
$(call quiet-command,$(TRACETOOL) \
--format=d \
--backend=$(TRACE_BACKEND) \
