selftests/powerpc/pmu: Add support for perf event code tests

Add new folder for enabling perf event code tests which includes
checking for group constraints, valid/invalid events, also checks for
event excludes, alternatives so on. A new folder "event_code_tests", is
created under "selftests/powerpc/pmu".

Also updates the corresponding Makefiles in "selftests/powerpc" and
"event_code_tests" folder.
Signed-off-by: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220610134113.62991-16-atrajeev@linux.vnet.ibm.com

tools/testing/selftests/powerpc/pmu/Makefile

@@ -8,7 +8,7 @@ EXTRA_SOURCES := ../harness.c event.c lib.c ../utils.c
 top_srcdir = ../../../../..
 include ../../lib.mk
 
-all: $(TEST_GEN_PROGS) ebb sampling_tests
+all: $(TEST_GEN_PROGS) ebb sampling_tests event_code_tests
 
 $(TEST_GEN_PROGS): $(EXTRA_SOURCES)
 
@@ -27,6 +27,7 @@ override define RUN_TESTS
 	$(DEFAULT_RUN_TESTS)
 	TARGET=ebb; BUILD_TARGET=$$OUTPUT/$$TARGET; $(MAKE) OUTPUT=$$BUILD_TARGET -C $$TARGET run_tests
 	TARGET=sampling_tests; BUILD_TARGET=$$OUTPUT/$$TARGET; $(MAKE) OUTPUT=$$BUILD_TARGET -C $$TARGET run_tests
+	TARGET=event_code_tests; BUILD_TARGET=$$OUTPUT/$$TARGET; $(MAKE) OUTPUT=$$BUILD_TARGET -C $$TARGET run_tests
 endef
 
 DEFAULT_EMIT_TESTS := $(EMIT_TESTS)
@@ -34,6 +35,7 @@ override define EMIT_TESTS
 	$(DEFAULT_EMIT_TESTS)
 	TARGET=ebb; BUILD_TARGET=$$OUTPUT/$$TARGET; $(MAKE) OUTPUT=$$BUILD_TARGET -s -C $$TARGET emit_tests
 	TARGET=sampling_tests; BUILD_TARGET=$$OUTPUT/$$TARGET; $(MAKE) OUTPUT=$$BUILD_TARGET -s -C $$TARGET emit_tests
+	TARGET=event_code_tests; BUILD_TARGET=$$OUTPUT/$$TARGET; $(MAKE) OUTPUT=$$BUILD_TARGET -s -C $$TARGET emit_tests
 endef
 
 DEFAULT_INSTALL_RULE := $(INSTALL_RULE)
@@ -41,12 +43,14 @@ override define INSTALL_RULE
 	$(DEFAULT_INSTALL_RULE)
 	TARGET=ebb; BUILD_TARGET=$$OUTPUT/$$TARGET; $(MAKE) OUTPUT=$$BUILD_TARGET -C $$TARGET install
 	TARGET=sampling_tests; BUILD_TARGET=$$OUTPUT/$$TARGET; $(MAKE) OUTPUT=$$BUILD_TARGET -C $$TARGET install
+	TARGET=event_code_tests; BUILD_TARGET=$$OUTPUT/$$TARGET; $(MAKE) OUTPUT=$$BUILD_TARGET -C $$TARGET install
 endef
 
 clean:
 	$(RM) $(TEST_GEN_PROGS) $(OUTPUT)/loop.o
 	TARGET=ebb; BUILD_TARGET=$$OUTPUT/$$TARGET; $(MAKE) OUTPUT=$$BUILD_TARGET -C $$TARGET clean
 	TARGET=sampling_tests; BUILD_TARGET=$$OUTPUT/$$TARGET; $(MAKE) OUTPUT=$$BUILD_TARGET -C $$TARGET clean
+	TARGET=event_code_tests; BUILD_TARGET=$$OUTPUT/$$TARGET; $(MAKE) OUTPUT=$$BUILD_TARGET -C $$TARGET clean
 
 ebb:
 	TARGET=$@; BUILD_TARGET=$$OUTPUT/$$TARGET; mkdir -p $$BUILD_TARGET; $(MAKE) OUTPUT=$$BUILD_TARGET -k -C $$TARGET all
@@ -54,4 +58,7 @@ ebb:
 sampling_tests:
 	TARGET=$@; BUILD_TARGET=$$OUTPUT/$$TARGET; mkdir -p $$BUILD_TARGET; $(MAKE) OUTPUT=$$BUILD_TARGET -k -C $$TARGET all
 
-.PHONY: all run_tests clean ebb sampling_tests
+event_code_tests:
+	TARGET=$@; BUILD_TARGET=$$OUTPUT/$$TARGET; mkdir -p $$BUILD_TARGET; $(MAKE) OUTPUT=$$BUILD_TARGET -k -C $$TARGET all
+
+.PHONY: all run_tests clean ebb sampling_tests event_code_tests

tools/testing/selftests/powerpc/pmu/event_code_tests/Makefile

+# SPDX-License-Identifier: GPL-2.0
+CFLAGS += -m64
+
+TEST_GEN_PROGS :=
+
+top_srcdir = ../../../../../..
+include ../../../lib.mk
+
+$(TEST_GEN_PROGS): ../../harness.c ../../utils.c ../event.c ../lib.c ../sampling_tests/misc.h ../sampling_tests/misc.c