When running `make -C powerpc/pmu run_tests` from top level selftests directory, currently this error is being reported make: Entering directory '/home/maddy/linux/tools/testing/selftests/powerpc/pmu' Makefile:40: warning: overriding recipe for target 'emit_tests' ../../lib.mk:111: warning: ignoring old recipe for target 'emit_tests' gcc -m64 count_instructions.c ../harness.c event.c lib.c ../utils.c loop.S -o /home/maddy/selftest_output//count_instructions In file included from count_instructions.c:13: event.h:12:10: fatal error: utils.h: No such file or directory 12 | #include "utils.h" | ^~~~~~~~~ compilation terminated. This is due to missing of include path in CFLAGS. That is, CFLAGS and GIT_VERSION macros are defined in the powerpc/ folder Makefile which in this case not involved. To address the failure incase of executing specific sub-folder test directly, a new rule file has been addded by the patch called "flags.mk" under selftest/powerpc/ folder and is linked to all the Makefile of powerpc/pmu sub-folders. Reported-by: Sachin Sant <sachinp@xxxxxxxxxxxxx> Signed-off-by: Madhavan Srinivasan <maddy@xxxxxxxxxxxxx> --- Changelog RFC: - Rename the rule file as flags.mk - Added additional patches to support other sub-folders under powerpc/ to be buildable on it own. link to RFC: https://patchwork.ozlabs.org/project/linuxppc-dev/patch/20240225163926.264286-1-maddy@xxxxxxxxxxxxx/ tools/testing/selftests/powerpc/flags.mk | 12 ++++++++++++ tools/testing/selftests/powerpc/pmu/Makefile | 1 + tools/testing/selftests/powerpc/pmu/ebb/Makefile | 1 + .../selftests/powerpc/pmu/event_code_tests/Makefile | 1 + .../selftests/powerpc/pmu/sampling_tests/Makefile | 1 + 5 files changed, 16 insertions(+) create mode 100644 tools/testing/selftests/powerpc/flags.mk diff --git a/tools/testing/selftests/powerpc/flags.mk b/tools/testing/selftests/powerpc/flags.mk new file mode 100644 index 000000000000..28374f470126 --- /dev/null +++ b/tools/testing/selftests/powerpc/flags.mk @@ -0,0 +1,12 @@ +#This checks for any ENV variables and add those. + +#ifeq ($(GIT_VERSION),) +GIT_VERSION = $(shell git describe --always --long --dirty || echo "unknown") +export GIT_VERSION +#endif + +#ifeq ($(CFLAGS),) +CFLAGS := -std=gnu99 -O2 -Wall -Werror -DGIT_VERSION='"$(GIT_VERSION)"' -I$(selfdir)/powerpc/include $(CFLAGS) +export CFLAGS +#endif + diff --git a/tools/testing/selftests/powerpc/pmu/Makefile b/tools/testing/selftests/powerpc/pmu/Makefile index a284fa874a9f..1fcacae1b188 100644 --- a/tools/testing/selftests/powerpc/pmu/Makefile +++ b/tools/testing/selftests/powerpc/pmu/Makefile @@ -7,6 +7,7 @@ EXTRA_SOURCES := ../harness.c event.c lib.c ../utils.c top_srcdir = ../../../../.. include ../../lib.mk +include ../flags.mk all: $(TEST_GEN_PROGS) ebb sampling_tests event_code_tests diff --git a/tools/testing/selftests/powerpc/pmu/ebb/Makefile b/tools/testing/selftests/powerpc/pmu/ebb/Makefile index b3946ce17e0c..1b39af7c10db 100644 --- a/tools/testing/selftests/powerpc/pmu/ebb/Makefile +++ b/tools/testing/selftests/powerpc/pmu/ebb/Makefile @@ -18,6 +18,7 @@ TEST_GEN_PROGS := reg_access_test event_attributes_test cycles_test \ top_srcdir = ../../../../../.. include ../../../lib.mk +include ../../flags.mk # The EBB handler is 64-bit code and everything links against it CFLAGS += -m64 diff --git a/tools/testing/selftests/powerpc/pmu/event_code_tests/Makefile b/tools/testing/selftests/powerpc/pmu/event_code_tests/Makefile index 509d4b235b9e..fdb080b3fa65 100644 --- a/tools/testing/selftests/powerpc/pmu/event_code_tests/Makefile +++ b/tools/testing/selftests/powerpc/pmu/event_code_tests/Makefile @@ -9,6 +9,7 @@ TEST_GEN_PROGS := group_constraint_pmc56_test group_pmc56_exclude_constraints_te top_srcdir = ../../../../../.. include ../../../lib.mk +include ../../flags.mk CFLAGS += -m64 diff --git a/tools/testing/selftests/powerpc/pmu/sampling_tests/Makefile b/tools/testing/selftests/powerpc/pmu/sampling_tests/Makefile index d45892151e05..9f79bec5fce7 100644 --- a/tools/testing/selftests/powerpc/pmu/sampling_tests/Makefile +++ b/tools/testing/selftests/powerpc/pmu/sampling_tests/Makefile @@ -9,6 +9,7 @@ TEST_GEN_PROGS := mmcr0_exceptionbits_test mmcr0_cc56run_test mmcr0_pmccext_test top_srcdir = ../../../../../.. include ../../../lib.mk +include ../../flags.mk CFLAGS += -m64 -- 2.43.2
