Previously all qtest cases in a category, such as check-qtest-y, are
executed in a single long gtester command. This patch separates each
test into its own make target to allow better parallism, unless gcov is
configured.

Slightly reorganize the gcov enabled case too, but the execution
sequence is kept.

This saves >50% of the time (see below), which means a lot for patchew
automatic testing given how 'make check' takes part in testings.

On my machine:

before:

    $ make docker-test-quick@fedora J=8 &>/dev/null && \
        time make docker-test-quick@fedora J=8 >/dev/null;

    real    1m47.090s
    user    0m1.599s
    sys     0m0.258s

after:

    real    0m54.067s
    user    0m1.447s
    sys     0m0.253s

Signed-off-by: Fam Zheng <f...@redhat.com>

---

v2: Fix gcov case by not changing it. [Daniel]
---
 tests/Makefile.include | 48 ++++++++++++++++++++++++++++++++++++------------
 1 file changed, 36 insertions(+), 12 deletions(-)

diff --git a/tests/Makefile.include b/tests/Makefile.include
index 8162f6f..575030a 100644
--- a/tests/Makefile.include
+++ b/tests/Makefile.include
@@ -729,27 +729,51 @@ GCOV_OPTIONS = -n $(if $(V),-f,)
 # gtester tests, possibly with verbose output
 
 .PHONY: $(patsubst %, check-qtest-%, $(QTEST_TARGETS))
-$(patsubst %, check-qtest-%, $(QTEST_TARGETS)): check-qtest-%: $(check-qtest-y)
-       $(if $(CONFIG_GCOV),@rm -f *.gcda */*.gcda */*/*.gcda */*/*/*.gcda,)
-       $(call quiet-command,QTEST_QEMU_BINARY=$*-softmmu/qemu-system-$* \
+
+run-tests = $(call quiet-command,\
+               $(if $(QTEST_TARGET), \
+                       
QTEST_QEMU_BINARY=$(QTEST_TARGET)-softmmu/qemu-system-$(QTEST_TARGET)) \
                QTEST_QEMU_IMG=qemu-img$(EXESUF) \
                MALLOC_PERTURB_=$${MALLOC_PERTURB_:-$$((RANDOM % 255 + 1))} \
-               gtester $(GTESTER_OPTIONS) -m=$(SPEED) $(check-qtest-$*-y) 
$(check-qtest-generic-y),"GTESTER $@")
-       $(if $(CONFIG_GCOV),@for f in $(gcov-files-$*-y) 
$(gcov-files-generic-y); do \
+               gtester $1 $(GTESTER_OPTIONS) -m=$(SPEED),"GTESTER $2")
+
+ifneq ($(CONFIG_GCOV),)
+
+check-qtest-%: QTEST_TARGET=$*
+$(patsubst %, check-qtest-%, $(QTEST_TARGETS)): check-qtest-%: $(check-qtest-y)
+       @rm -f *.gcda */*.gcda */*/*.gcda */*/*/*.gcda
+       $(call run-tests, $(check-qtest-$*-y), $@)
+       @for f in $(gcov-files-$*-y) $(gcov-files-generic-y); do \
          echo Gcov report for $$f:;\
          $(GCOV) $(GCOV_OPTIONS) $$f -o `dirname $$f`; \
-       done,)
+       done
 
 .PHONY: $(patsubst %, check-%, $(check-unit-y))
 $(patsubst %, check-%, $(check-unit-y)): check-%: %
-       $(if $(CONFIG_GCOV),@rm -f *.gcda */*.gcda */*/*.gcda */*/*/*.gcda,)
-       $(call quiet-command, \
-               MALLOC_PERTURB_=$${MALLOC_PERTURB_:-$$((RANDOM % 255 + 1))} \
-               gtester $(GTESTER_OPTIONS) -m=$(SPEED) $*,"GTESTER $*")
-       $(if $(CONFIG_GCOV),@for f in $(gcov-files-$(subst tests/,,$*)-y) 
$(gcov-files-generic-y); do \
+       @rm -f *.gcda */*.gcda */*/*.gcda */*/*/*.gcda
+       $(call run-tests, $*, $*)
+       @for f in $(gcov-files-$(subst tests/,,$*)-y) $(gcov-files-generic-y); 
do \
          echo Gcov report for $$f:;\
          $(GCOV) $(GCOV_OPTIONS) $$f -o `dirname $$f`; \
-       done,)
+       done
+
+else
+
+run-test-%: tests/%
+       $(call run-tests, $<, $<)
+
+$(foreach target, $(QTEST_TARGETS), \
+       $(eval check-qtest-$(target): QTEST_TARGET := $(target)) \
+       $(eval check-qtest-$(target): $(patsubst tests/%, run-test-%, \
+                                             $(check-qtest-y) \
+                                             $(check-qtest-$(target)-y) \
+                                             $(check-qtest-generic-y))) \
+)
+$(patsubst %, check-%, $(check-unit-y)): check-tests/%: run-test-%
+
+endif
+
+.PHONY: $(patsubst %, check-%, $(check-unit-y))
 
 # gtester tests with XML output
 
-- 
2.7.4


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