HBitmaps provides an array of bits. The bits are stored as usual in an array of unsigned longs, but HBitmap is also optimized to provide fast iteration over set bits; going from one bit to the next is O(logB n) worst case, with B = sizeof(long) * CHAR_BIT: the result is low enough that the number of levels is in fact fixed. In order to do this, it stacks multiple bitmaps with progressively coarser granularity; in all levels except the last, bit N is set iff the N-th unsigned long is nonzero in the immediately next level. When iteration completes on the last level it can examine the 2nd-last level to quickly skip entire words, and even do so recursively to skip blocks of 64 words or powers thereof (32 on 32-bit machines). Given an index in the bitmap, it can be split in group of bits like this (for the 64-bit case): bits 0-57 => word in the last bitmap | bits 58-63 => bit in the word bits 0-51 => word in the 2nd-last bitmap | bits 52-57 => bit in the word bits 0-45 => word in the 3rd-last bitmap | bits 46-51 => bit in the word So it is easy to move up simply by shifting the index right by log2(BITS_PER_LONG) bits. To move down, you shift the index left similarly, and add the word index within the group. Iteration uses ffs (find first set bit) to find the next word to examine; this operation can be done in constant time in most current architectures. Setting or clearing a range of m bits on all levels, the work to perform is O(m + m/W + m/W^2 + ...), which is O(m) like on a regular bitmap. When iterating on a bitmap, each bit (on any level) is only visited once. Hence, The total cost of visiting a bitmap with m bits in it is the number of bits that are set in all bitmaps. Unless the bitmap is extremely sparse, this is also O(m + m/W + m/W^2 + ...), so the amortized cost of advancing from one bit to the next is usually constant. Reviewed-by: Laszlo Ersek <lersek@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
204 lines
9.1 KiB
Makefile
204 lines
9.1 KiB
Makefile
export SRC_PATH
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check-unit-y = tests/check-qdict$(EXESUF)
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gcov-files-check-qdict-y = qdict.c
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check-unit-y += tests/check-qfloat$(EXESUF)
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gcov-files-check-qfloat-y = qfloat.c
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check-unit-y += tests/check-qint$(EXESUF)
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gcov-files-check-qint-y = qint.c
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check-unit-y += tests/check-qstring$(EXESUF)
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gcov-files-check-qstring-y = qstring.c
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check-unit-y += tests/check-qlist$(EXESUF)
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gcov-files-check-qlist-y = qlist.c
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check-unit-y += tests/check-qjson$(EXESUF)
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gcov-files-check-qjson-y = qjson.c
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check-unit-y += tests/test-qmp-output-visitor$(EXESUF)
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gcov-files-test-qmp-output-visitor-y = qapi/qmp-output-visitor.c
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check-unit-y += tests/test-qmp-input-visitor$(EXESUF)
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gcov-files-test-qmp-input-visitor-y = qapi/qmp-input-visitor.c
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check-unit-y += tests/test-qmp-input-strict$(EXESUF)
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check-unit-y += tests/test-qmp-commands$(EXESUF)
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gcov-files-test-qmp-commands-y = qapi/qmp-dispatch.c
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check-unit-y += tests/test-string-input-visitor$(EXESUF)
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gcov-files-test-string-input-visitor-y = qapi/string-input-visitor.c
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check-unit-y += tests/test-string-output-visitor$(EXESUF)
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gcov-files-test-string-output-visitor-y = qapi/string-output-visitor.c
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check-unit-y += tests/test-coroutine$(EXESUF)
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ifeq ($(CONFIG_WIN32),y)
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gcov-files-test-coroutine-y = coroutine-win32.c
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else
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ifeq ($(CONFIG_UCONTEXT_COROUTINE),y)
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gcov-files-test-coroutine-y = coroutine-ucontext.c
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else
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ifeq ($(CONFIG_SIGALTSTACK_COROUTINE),y)
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gcov-files-test-coroutine-y = coroutine-sigaltstack.c
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else
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gcov-files-test-coroutine-y = coroutine-gthread.c
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endif
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endif
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endif
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check-unit-y += tests/test-visitor-serialization$(EXESUF)
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check-unit-y += tests/test-iov$(EXESUF)
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gcov-files-test-iov-y = iov.c
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check-unit-y += tests/test-aio$(EXESUF)
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gcov-files-test-aio-$(CONFIG_WIN32) = aio-win32.c
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gcov-files-test-aio-$(CONFIG_POSIX) = aio-posix.c
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check-unit-y += tests/test-thread-pool$(EXESUF)
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gcov-files-test-thread-pool-y = thread-pool.c
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gcov-files-test-hbitmap-y = util/hbitmap.c
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check-unit-y += tests/test-hbitmap$(EXESUF)
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check-block-$(CONFIG_POSIX) += tests/qemu-iotests-quick.sh
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# All QTests for now are POSIX-only, but the dependencies are
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# really in libqtest, not in the testcases themselves.
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check-qtest-i386-y = tests/fdc-test$(EXESUF)
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gcov-files-i386-y = hw/fdc.c
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check-qtest-i386-y += tests/hd-geo-test$(EXESUF)
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gcov-files-i386-y += hw/hd-geometry.c
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check-qtest-i386-y += tests/rtc-test$(EXESUF)
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check-qtest-x86_64-y = $(check-qtest-i386-y)
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gcov-files-i386-y += i386-softmmu/hw/mc146818rtc.c
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check-qtest-sparc-y = tests/m48t59-test$(EXESUF)
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check-qtest-sparc64-y = tests/m48t59-test$(EXESUF)
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gcov-files-sparc-y += hw/m48t59.c
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check-qtest-arm-y = tests/tmp105-test$(EXESUF)
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qcov-files-arm-y += hw/tmp105.c
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GENERATED_HEADERS += tests/test-qapi-types.h tests/test-qapi-visit.h tests/test-qmp-commands.h
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test-obj-y = tests/check-qint.o tests/check-qstring.o tests/check-qdict.o \
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tests/check-qlist.o tests/check-qfloat.o tests/check-qjson.o \
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tests/test-coroutine.o tests/test-string-output-visitor.o \
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tests/test-string-input-visitor.o tests/test-qmp-output-visitor.o \
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tests/test-qmp-input-visitor.o tests/test-qmp-input-strict.o \
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tests/test-qmp-commands.o tests/test-visitor-serialization.o
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test-qapi-obj-y = tests/test-qapi-visit.o tests/test-qapi-types.o
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$(test-obj-y): QEMU_INCLUDES += -Itests
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tests/check-qint$(EXESUF): tests/check-qint.o libqemuutil.a
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tests/check-qstring$(EXESUF): tests/check-qstring.o libqemuutil.a
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tests/check-qdict$(EXESUF): tests/check-qdict.o libqemuutil.a
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tests/check-qlist$(EXESUF): tests/check-qlist.o libqemuutil.a
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tests/check-qfloat$(EXESUF): tests/check-qfloat.o libqemuutil.a
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tests/check-qjson$(EXESUF): tests/check-qjson.o libqemuutil.a libqemustub.a
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tests/test-coroutine$(EXESUF): tests/test-coroutine.o $(block-obj-y) libqemuutil.a libqemustub.a
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tests/test-aio$(EXESUF): tests/test-aio.o $(block-obj-y) libqemuutil.a libqemustub.a
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tests/test-thread-pool$(EXESUF): tests/test-thread-pool.o $(block-obj-y) libqemuutil.a libqemustub.a
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tests/test-iov$(EXESUF): tests/test-iov.o libqemuutil.a
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tests/test-hbitmap$(EXESUF): tests/test-hbitmap.o libqemuutil.a libqemustub.a
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tests/test-qapi-types.c tests/test-qapi-types.h :\
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$(SRC_PATH)/qapi-schema-test.json $(SRC_PATH)/scripts/qapi-types.py
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$(call quiet-command,$(PYTHON) $(SRC_PATH)/scripts/qapi-types.py $(gen-out-type) -o tests -p "test-" < $<, " GEN $@")
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tests/test-qapi-visit.c tests/test-qapi-visit.h :\
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$(SRC_PATH)/qapi-schema-test.json $(SRC_PATH)/scripts/qapi-visit.py
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$(call quiet-command,$(PYTHON) $(SRC_PATH)/scripts/qapi-visit.py $(gen-out-type) -o tests -p "test-" < $<, " GEN $@")
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tests/test-qmp-commands.h tests/test-qmp-marshal.c :\
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$(SRC_PATH)/qapi-schema-test.json $(SRC_PATH)/scripts/qapi-commands.py
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$(call quiet-command,$(PYTHON) $(SRC_PATH)/scripts/qapi-commands.py $(gen-out-type) -o tests -p "test-" < $<, " GEN $@")
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tests/test-string-output-visitor$(EXESUF): tests/test-string-output-visitor.o $(test-qapi-obj-y) libqemuutil.a libqemustub.a
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tests/test-string-input-visitor$(EXESUF): tests/test-string-input-visitor.o $(test-qapi-obj-y) libqemuutil.a libqemustub.a
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tests/test-qmp-output-visitor$(EXESUF): tests/test-qmp-output-visitor.o $(test-qapi-obj-y) libqemuutil.a libqemustub.a
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tests/test-qmp-input-visitor$(EXESUF): tests/test-qmp-input-visitor.o $(test-qapi-obj-y) libqemuutil.a libqemustub.a
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tests/test-qmp-input-strict$(EXESUF): tests/test-qmp-input-strict.o $(test-qapi-obj-y) libqemuutil.a libqemustub.a
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tests/test-qmp-commands$(EXESUF): tests/test-qmp-commands.o tests/test-qmp-marshal.o $(test-qapi-obj-y) qapi-types.o qapi-visit.o libqemuutil.a libqemustub.a
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tests/test-visitor-serialization$(EXESUF): tests/test-visitor-serialization.o $(test-qapi-obj-y) libqemuutil.a libqemustub.a
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tests/rtc-test$(EXESUF): tests/rtc-test.o
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tests/m48t59-test$(EXESUF): tests/m48t59-test.o
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tests/fdc-test$(EXESUF): tests/fdc-test.o
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tests/hd-geo-test$(EXESUF): tests/hd-geo-test.o
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tests/tmp105-test$(EXESUF): tests/tmp105-test.o
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# QTest rules
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TARGETS=$(patsubst %-softmmu,%, $(filter %-softmmu,$(TARGET_DIRS)))
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QTEST_TARGETS=$(foreach TARGET,$(TARGETS), $(if $(check-qtest-$(TARGET)-y), $(TARGET),))
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check-qtest-$(CONFIG_POSIX)=$(foreach TARGET,$(TARGETS), $(check-qtest-$(TARGET)-y))
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qtest-obj-y = tests/libqtest.o libqemuutil.a libqemustub.a
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qtest-obj-y += tests/libi2c.o tests/libi2c-omap.o
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$(check-qtest-y): $(qtest-obj-y)
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.PHONY: check-help
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check-help:
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@echo "Regression testing targets:"
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@echo
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@echo " make check Run all tests"
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@echo " make check-qtest-TARGET Run qtest tests for given target"
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@echo " make check-qtest Run qtest tests"
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@echo " make check-unit Run qobject tests"
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@echo " make check-block Run block tests"
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@echo " make check-report.html Generates an HTML test report"
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@echo
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@echo "Please note that HTML reports do not regenerate if the unit tests"
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@echo "has not changed."
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@echo
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@echo "The variable SPEED can be set to control the gtester speed setting."
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@echo "Default options are -k and (for make V=1) --verbose; they can be"
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@echo "changed with variable GTESTER_OPTIONS."
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SPEED = quick
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GTESTER_OPTIONS = -k $(if $(V),--verbose,-q)
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GCOV_OPTIONS = -n $(if $(V),-f,)
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# gtester tests, possibly with verbose output
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.PHONY: $(patsubst %, check-qtest-%, $(QTEST_TARGETS))
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$(patsubst %, check-qtest-%, $(QTEST_TARGETS)): check-qtest-%: $(check-qtest-y)
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$(if $(CONFIG_GCOV),@rm -f *.gcda */*.gcda */*/*.gcda */*/*/*.gcda,)
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$(call quiet-command,QTEST_QEMU_BINARY=$*-softmmu/qemu-system-$* \
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gtester $(GTESTER_OPTIONS) -m=$(SPEED) $(check-qtest-$*-y),"GTESTER $@")
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$(if $(CONFIG_GCOV),@for f in $(gcov-files-$*-y); do \
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echo Gcov report for $$f:;\
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$(GCOV) $(GCOV_OPTIONS) $$f -o `dirname $$f`; \
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done,)
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.PHONY: $(patsubst %, check-%, $(check-unit-y))
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$(patsubst %, check-%, $(check-unit-y)): check-%: %
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$(if $(CONFIG_GCOV),@rm -f *.gcda */*.gcda */*/*.gcda */*/*/*.gcda,)
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$(call quiet-command,gtester $(GTESTER_OPTIONS) -m=$(SPEED) $*,"GTESTER $*")
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$(if $(CONFIG_GCOV),@for f in $(gcov-files-$(subst tests/,,$*)-y); do \
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echo Gcov report for $$f:;\
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$(GCOV) $(GCOV_OPTIONS) $$f -o `dirname $$f`; \
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done,)
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# gtester tests with XML output
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$(patsubst %, check-report-qtest-%.xml, $(QTEST_TARGETS)): check-report-qtest-%.xml: $(check-qtest-y)
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$(call quiet-command,QTEST_QEMU_BINARY=$*-softmmu/qemu-system-$* \
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gtester -q $(GTESTER_OPTIONS) -o $@ -m=$(SPEED) $(check-qtest-$*-y),"GTESTER $@")
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check-report-unit.xml: $(check-unit-y)
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$(call quiet-command,gtester -q $(GTESTER_OPTIONS) -o $@ -m=$(SPEED) $^, "GTESTER $@")
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# Reports and overall runs
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check-report.xml: $(patsubst %,check-report-qtest-%.xml, $(QTEST_TARGETS)) check-report-unit.xml
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$(call quiet-command,$(SRC_PATH)/scripts/gtester-cat $^ > $@, " GEN $@")
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check-report.html: check-report.xml
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$(call quiet-command,gtester-report $< > $@, " GEN $@")
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# Other tests
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.PHONY: check-tests/qemu-iotests-quick.sh
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check-tests/qemu-iotests-quick.sh: tests/qemu-iotests-quick.sh qemu-img$(EXESUF) qemu-io$(EXESUF)
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$<
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# Consolidated targets
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.PHONY: check-qtest check-unit check
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check-qtest: $(patsubst %,check-qtest-%, $(QTEST_TARGETS))
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check-unit: $(patsubst %,check-%, $(check-unit-y))
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check-block: $(patsubst %,check-%, $(check-block-y))
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check: check-unit check-qtest
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-include $(wildcard tests/*.d)
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