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trace: pass trace-events to tracetool as a positional param

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Instead of reading the contents of 'trace-events' from stdin,
accept the filename as a positional parameter. This also
allows for reading from multiple files, though this facility
is not used at this time.

Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Lluís Vilanova <vilanova@ac.upc.edu>
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Message-id: 1475588159-30598-20-git-send-email-berrange@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This commit is contained in:
Daniel P. Berrange 2016-10-04 14:35:58 +01:00 committed by Stefan Hajnoczi
parent 9096b78a38
commit 0bc6484d58
3 changed files with 16 additions and 13 deletions
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6
Makefile.target
View File

@ -55,7 +55,7 @@ $(QEMU_PROG).stp-installed: $(BUILD_DIR)/trace-events-all
--binary=$(bindir)/$(QEMU_PROG) \
--target-name=$(TARGET_NAME) \
--target-type=$(TARGET_TYPE) \
< $< > $@,"GEN","$(TARGET_DIR)$(QEMU_PROG).stp-installed")
$< > $@,"GEN","$(TARGET_DIR)$(QEMU_PROG).stp-installed")
$(QEMU_PROG).stp: $(BUILD_DIR)/trace-events-all
$(call quiet-command,$(TRACETOOL) \
@ -64,14 +64,14 @@ $(QEMU_PROG).stp: $(BUILD_DIR)/trace-events-all
--binary=$(realpath .)/$(QEMU_PROG) \
--target-name=$(TARGET_NAME) \
--target-type=$(TARGET_TYPE) \
< $< > $@,"GEN","$(TARGET_DIR)$(QEMU_PROG).stp")
$< > $@,"GEN","$(TARGET_DIR)$(QEMU_PROG).stp")
$(QEMU_PROG)-simpletrace.stp: $(BUILD_DIR)/trace-events-all
$(call quiet-command,$(TRACETOOL) \
--format=simpletrace-stap \
--backends=$(TRACE_BACKENDS) \
--probe-prefix=qemu.$(TARGET_TYPE).$(TARGET_NAME) \
< $< > $@,"GEN","$(TARGET_DIR)$(QEMU_PROG)-simpletrace.stp")
$< > $@,"GEN","$(TARGET_DIR)$(QEMU_PROG)-simpletrace.stp")
else
stap:

5
scripts/tracetool.py
View File

@ -129,7 +129,10 @@ def main(args):
if probe_prefix is None:
probe_prefix = ".".join(["qemu", target_type, target_name])
events = tracetool.read_events(sys.stdin)
if len(args) != 1:
error_opt("missing trace-events filepath")
with open(args[0], "r") as fh:
events = tracetool.read_events(fh)
try:
tracetool.generate(events, arg_format, arg_backends,

18
trace/Makefile.objs
View File

@ -22,7 +22,7 @@ $(obj)/generated-ust-provider.h-timestamp: $(BUILD_DIR)/trace-events-all $(trace
$(call quiet-command,$(TRACETOOL) \
--format=ust-events-h \
--backends=$(TRACE_BACKENDS) \
< $< > $@,"GEN","$(patsubst %-timestamp,%,$@)")
$< > $@,"GEN","$(patsubst %-timestamp,%,$@)")
$(obj)/generated-ust.c: $(obj)/generated-ust.c-timestamp $(BUILD_DIR)/config-host.mak
@cmp $< $@ >/dev/null 2>&1 || cp $< $@
@ -30,7 +30,7 @@ $(obj)/generated-ust.c-timestamp: $(BUILD_DIR)/trace-events-all $(tracetool-y)
$(call quiet-command,$(TRACETOOL) \
--format=ust-events-c \
--backends=$(TRACE_BACKENDS) \
< $< > $@,"GEN","$(patsubst %-timestamp,%,$@)")
$< > $@,"GEN","$(patsubst %-timestamp,%,$@)")
$(obj)/generated-tracers.h: $(obj)/generated-ust-provider.h
$(obj)/generated-tracers.c: $(obj)/generated-ust.c
@ -50,7 +50,7 @@ $(obj)/generated-tracers.h-timestamp: $(BUILD_DIR)/trace-events-all $(BUILD_DIR)
$(call quiet-command,$(TRACETOOL) \
--format=h \
--backends=$(TRACE_BACKENDS) \
< $< > $@,"GEN","$(patsubst %-timestamp,%,$@)")
$< > $@,"GEN","$(patsubst %-timestamp,%,$@)")
##############################
# non-DTrace
@ -61,7 +61,7 @@ $(obj)/generated-tracers.c-timestamp: $(BUILD_DIR)/trace-events-all $(BUILD_DIR)
$(call quiet-command,$(TRACETOOL) \
--format=c \
--backends=$(TRACE_BACKENDS) \
< $< > $@,"GEN","$(patsubst %-timestamp,%,$@)")
$< > $@,"GEN","$(patsubst %-timestamp,%,$@)")
$(obj)/generated-tracers.o: $(obj)/generated-tracers.c $(obj)/generated-tracers.h
@ -79,7 +79,7 @@ $(obj)/generated-tracers-dtrace.dtrace-timestamp: $(BUILD_DIR)/trace-events-all
$(call quiet-command,$(TRACETOOL) \
--format=d \
--backends=$(TRACE_BACKENDS) \
< $< > $@,"GEN","$(patsubst %-timestamp,%,$@)")
$< > $@,"GEN","$(patsubst %-timestamp,%,$@)")
$(obj)/generated-tracers-dtrace.h: $(obj)/generated-tracers-dtrace.dtrace
$(call quiet-command,dtrace -o $@ -h -s $<,"GEN","$@")
@ -98,7 +98,7 @@ $(obj)/generated-helpers-wrappers.h-timestamp: $(BUILD_DIR)/trace-events-all $(B
$(call quiet-command,$(TRACETOOL) \
--format=tcg-helper-wrapper-h \
--backend=$(TRACE_BACKENDS) \
< $< > $@,"GEN","$(patsubst %-timestamp,%,$@)")
$< > $@,"GEN","$(patsubst %-timestamp,%,$@)")
$(obj)/generated-helpers.h: $(obj)/generated-helpers.h-timestamp
@cmp $< $@ >/dev/null 2>&1 || cp $< $@
@ -106,7 +106,7 @@ $(obj)/generated-helpers.h-timestamp: $(BUILD_DIR)/trace-events-all $(BUILD_DIR)
$(call quiet-command,$(TRACETOOL) \
--format=tcg-helper-h \
--backend=$(TRACE_BACKENDS) \
< $< > $@,"GEN","$(patsubst %-timestamp,%,$@)")
$< > $@,"GEN","$(patsubst %-timestamp,%,$@)")
$(obj)/generated-helpers.c: $(obj)/generated-helpers.c-timestamp
@cmp $< $@ >/dev/null 2>&1 || cp $< $@
@ -114,7 +114,7 @@ $(obj)/generated-helpers.c-timestamp: $(BUILD_DIR)/trace-events-all $(BUILD_DIR)
$(call quiet-command,$(TRACETOOL) \
--format=tcg-helper-c \
--backend=$(TRACE_BACKENDS) \
< $< > $@,"GEN","$(patsubst %-timestamp,%,$@)")
$< > $@,"GEN","$(patsubst %-timestamp,%,$@)")
$(obj)/generated-helpers.o: $(obj)/generated-helpers.c
@ -127,7 +127,7 @@ $(obj)/generated-tcg-tracers.h-timestamp: $(BUILD_DIR)/trace-events-all $(BUILD_
$(call quiet-command,$(TRACETOOL) \
--format=tcg-h \
--backend=$(TRACE_BACKENDS) \
< $< > $@,"GEN","$(patsubst %-timestamp,%,$@)")
$< > $@,"GEN","$(patsubst %-timestamp,%,$@)")
######################################################################