selftests/powerpc: Don't ignore errors from sub Makefiles
Currently we ignore errors from our sub Makefiles. We inherited that
from the top-level selftests Makefile which aims to build and run as
many tests as possible and damn the torpedoes.
For the powerpc tests we'd instead like any errors to fail the build, so
we can automatically catch build failures.
We can achieve the best of both worlds by using -k, which tells make to
keep building when it hits an error, but still reports the error.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
diff --git a/tools/testing/selftests/powerpc/pmu/Makefile b/tools/testing/selftests/powerpc/pmu/Makefile
index b9ff0db..cd25627 100644
--- a/tools/testing/selftests/powerpc/pmu/Makefile
+++ b/tools/testing/selftests/powerpc/pmu/Makefile
@@ -4,7 +4,9 @@
PROGS := count_instructions
EXTRA_SOURCES := ../harness.c event.c
-all: $(PROGS) sub_all
+SUB_TARGETS = ebb
+
+all: $(PROGS) $(SUB_TARGETS)
$(PROGS): $(EXTRA_SOURCES)
@@ -20,13 +22,8 @@
clean: sub_clean
rm -f $(PROGS) loop.o
-
-SUB_TARGETS = ebb
-
-sub_all:
- @for TARGET in $(SUB_TARGETS); do \
- $(MAKE) -C $$TARGET all; \
- done;
+$(SUB_TARGETS):
+ $(MAKE) -k -C $@ all
sub_run_tests: all
@for TARGET in $(SUB_TARGETS); do \
@@ -38,4 +35,4 @@
$(MAKE) -C $$TARGET clean; \
done;
-.PHONY: all run_tests clean sub_all sub_run_tests sub_clean
+.PHONY: all run_tests clean sub_run_tests sub_clean $(SUB_TARGETS)