[PATCH v3 2/7] Makefile: Include subdirectories in "make cover" reports
From: Ævar Arnfjörð Bjarmason <hidden>
Date: 2016-06-15 22:49:11
Subsystem:
kernel build + files below scripts/ (unless maintained elsewhere), the rest · Maintainers:
Nathan Chancellor, Nicolas Schier, Linus Torvalds
We generate profiling files in all the $(OBJECTS) dirs. Aggregate results from there, and add them to the corresponding clean target. Also expand the gcov arguments. Generate reports for things like "x() || y()" using --all-blocks, and add --preserve-paths since we're profiling in subdirectories now. Signed-off-by: Ævar Arnfjörð Bjarmason <redacted> --- Makefile | 14 +++++++++++--- 1 files changed, 11 insertions(+), 3 deletions(-)
diff --git a/Makefile b/Makefile
index bc3c570..b791ad5 100644
--- a/Makefile
+++ b/Makefile@@ -1485,6 +1485,7 @@ ifndef V QUIET_BUILT_IN = @echo ' ' BUILTIN $@; QUIET_GEN = @echo ' ' GEN $@; QUIET_LNCP = @echo ' ' LN/CP $@; + QUIET_GCOV = @echo ' ' GCOV $@; QUIET_SUBDIR0 = +@subdir= QUIET_SUBDIR1 = ;$(NO_SUBDIR) echo ' ' SUBDIR $$subdir; \ $(MAKE) $(PRINT_DIR) -C $$subdir
@@ -2280,11 +2281,16 @@ coverage: $(MAKE) coverage-build $(MAKE) coverage-report +object_dirs := $(sort $(dir $(OBJECTS))) coverage-clean: - rm -f *.gcda *.gcno + $(RM) $(addsuffix *.gcov,$(object_dirs)) + $(RM) $(addsuffix *.gcda,$(object_dirs)) + $(RM) $(addsuffix *.gcno,$(object_dirs)) + $(RM) coverage-untested-functions COVERAGE_CFLAGS = $(CFLAGS) -O0 -ftest-coverage -fprofile-arcs COVERAGE_LDFLAGS = $(CFLAGS) -O0 -lgcov +GCOVFLAGS = --preserve-paths --branch-probabilities --all-blocks coverage-build: coverage-clean $(MAKE) CFLAGS="$(COVERAGE_CFLAGS)" LDFLAGS="$(COVERAGE_LDFLAGS)" all
@@ -2292,7 +2298,9 @@ coverage-build: coverage-clean -j1 test coverage-report: - gcov -b *.c + $(QUIET_GCOV)for dir in $(object_dirs); do \ + gcov $(GCOVFLAGS) --object-directory=$$dir $$dir*.c || exit; \ + done grep '^function.*called 0 ' *.c.gcov \ | sed -e 's/\([^:]*\)\.gcov: *function \([^ ]*\) called.*/\1: \2/' \ - | tee coverage-untested-functions + > coverage-untested-functions
--
1.7.0.4