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| author | Avi Kivity <avi@redhat.com> | 2011-12-27 16:02:16 +0200 |
|---|---|---|
| committer | Anthony Liguori <aliguori@us.ibm.com> | 2011-12-27 09:28:58 -0600 |
| commit | 8d3bc5178fbc06cdd89c064ae8f44e77c503e91e (patch) | |
| tree | 5a636844be70c13422856569e90f9e487141a5c5 /Makefile | |
| parent | 4e1ea514f9b9f07358b84554dc3d35f533ec3971 (diff) | |
| download | qemu-8d3bc5178fbc06cdd89c064ae8f44e77c503e91e.tar.gz qemu-8d3bc5178fbc06cdd89c064ae8f44e77c503e91e.tar.bz2 qemu-8d3bc5178fbc06cdd89c064ae8f44e77c503e91e.zip | |
Fix qapi code generation wrt parallel build
Make's multiple output syntax
x.c x.h: x.template
gen < x.template
actually invokes the command once for x.c and once for x.h (with differing $@
in each invocation). During a parallel build, the two commands may be invoked
in parallel; this opens up a race, where the second invocation trashes a file
supposedly produced during the first, and now in use by a dependent command.
The various qapi code generators are susceptible to this; fix by making them
generate just one file per invocation.
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Diffstat (limited to 'Makefile')
| -rw-r--r-- | Makefile | 20 |
1 files changed, 11 insertions, 9 deletions
@@ -173,35 +173,37 @@ qapi-dir := $(BUILD_DIR)/qapi-generated test-qmp-input-visitor.o test-qmp-output-visitor.o test-qmp-commands.o qemu-ga$(EXESUF): QEMU_CFLAGS += -I $(qapi-dir) qemu-ga$(EXESUF): LIBS = $(LIBS_QGA) +gen-out-type = $(subst .,-,$@) + $(qapi-dir)/test-qapi-types.c $(qapi-dir)/test-qapi-types.h :\ $(SRC_PATH)/qapi-schema-test.json $(SRC_PATH)/scripts/qapi-types.py - $(call quiet-command,$(PYTHON) $(SRC_PATH)/scripts/qapi-types.py -o "$(qapi-dir)" -p "test-" < $<, " GEN $@") + $(call quiet-command,$(PYTHON) $(SRC_PATH)/scripts/qapi-types.py $(gen-out-type) -o "$(qapi-dir)" -p "test-" < $<, " GEN $@") $(qapi-dir)/test-qapi-visit.c $(qapi-dir)/test-qapi-visit.h :\ $(SRC_PATH)/qapi-schema-test.json $(SRC_PATH)/scripts/qapi-visit.py - $(call quiet-command,$(PYTHON) $(SRC_PATH)/scripts/qapi-visit.py -o "$(qapi-dir)" -p "test-" < $<, " GEN $@") + $(call quiet-command,$(PYTHON) $(SRC_PATH)/scripts/qapi-visit.py $(gen-out-type) -o "$(qapi-dir)" -p "test-" < $<, " GEN $@") $(qapi-dir)/test-qmp-commands.h $(qapi-dir)/test-qmp-marshal.c :\ $(SRC_PATH)/qapi-schema-test.json $(SRC_PATH)/scripts/qapi-commands.py - $(call quiet-command,$(PYTHON) $(SRC_PATH)/scripts/qapi-commands.py -o "$(qapi-dir)" -p "test-" < $<, " GEN $@") + $(call quiet-command,$(PYTHON) $(SRC_PATH)/scripts/qapi-commands.py $(gen-out-type) -o "$(qapi-dir)" -p "test-" < $<, " GEN $@") $(qapi-dir)/qga-qapi-types.c $(qapi-dir)/qga-qapi-types.h :\ $(SRC_PATH)/qapi-schema-guest.json $(SRC_PATH)/scripts/qapi-types.py - $(call quiet-command,$(PYTHON) $(SRC_PATH)/scripts/qapi-types.py -o "$(qapi-dir)" -p "qga-" < $<, " GEN $@") + $(call quiet-command,$(PYTHON) $(SRC_PATH)/scripts/qapi-types.py $(gen-out-type) -o "$(qapi-dir)" -p "qga-" < $<, " GEN $@") $(qapi-dir)/qga-qapi-visit.c $(qapi-dir)/qga-qapi-visit.h :\ $(SRC_PATH)/qapi-schema-guest.json $(SRC_PATH)/scripts/qapi-visit.py - $(call quiet-command,$(PYTHON) $(SRC_PATH)/scripts/qapi-visit.py -o "$(qapi-dir)" -p "qga-" < $<, " GEN $@") + $(call quiet-command,$(PYTHON) $(SRC_PATH)/scripts/qapi-visit.py $(gen-out-type) -o "$(qapi-dir)" -p "qga-" < $<, " GEN $@") $(qapi-dir)/qga-qmp-commands.h $(qapi-dir)/qga-qmp-marshal.c :\ $(SRC_PATH)/qapi-schema-guest.json $(SRC_PATH)/scripts/qapi-commands.py - $(call quiet-command,$(PYTHON) $(SRC_PATH)/scripts/qapi-commands.py -o "$(qapi-dir)" -p "qga-" < $<, " GEN $@") + $(call quiet-command,$(PYTHON) $(SRC_PATH)/scripts/qapi-commands.py $(gen-out-type) -o "$(qapi-dir)" -p "qga-" < $<, " GEN $@") qapi-types.c qapi-types.h :\ $(SRC_PATH)/qapi-schema.json $(SRC_PATH)/scripts/qapi-types.py - $(call quiet-command,$(PYTHON) $(SRC_PATH)/scripts/qapi-types.py -o "." < $<, " GEN $@") + $(call quiet-command,$(PYTHON) $(SRC_PATH)/scripts/qapi-types.py $(gen-out-type) -o "." < $<, " GEN $@") qapi-visit.c qapi-visit.h :\ $(SRC_PATH)/qapi-schema.json $(SRC_PATH)/scripts/qapi-visit.py - $(call quiet-command,$(PYTHON) $(SRC_PATH)/scripts/qapi-visit.py -o "." < $<, " GEN $@") + $(call quiet-command,$(PYTHON) $(SRC_PATH)/scripts/qapi-visit.py $(gen-out-type) -o "." < $<, " GEN $@") qmp-commands.h qmp-marshal.c :\ $(SRC_PATH)/qapi-schema.json $(SRC_PATH)/scripts/qapi-commands.py - $(call quiet-command,$(PYTHON) $(SRC_PATH)/scripts/qapi-commands.py -m -o "." < $<, " GEN $@") + $(call quiet-command,$(PYTHON) $(SRC_PATH)/scripts/qapi-commands.py $(gen-out-type) -m -o "." < $<, " GEN $@") test-qmp-output-visitor.o: $(addprefix $(qapi-dir)/, test-qapi-types.c test-qapi-types.h test-qapi-visit.c test-qapi-visit.h) $(qapi-obj-y) test-qmp-output-visitor: test-qmp-output-visitor.o $(qobject-obj-y) $(qapi-obj-y) $(tools-obj-y) $(qapi-dir)/test-qapi-visit.o $(qapi-dir)/test-qapi-types.o |