Implement a target for capturing code coverage using lcov.
It is available when elfutils is configured using --enable-gcov.
Signed-off-by: Dmitry V. Levin <l...@altlinux.org>
---
Rather than trying to salvage the coverage target, implement a different
target for capturing code coverage similar to those I use in other
projects. I'm sure you'll like it, too.
ChangeLog | 4 ++++
configure.ac | 3 +++
tests/.gitignore | 2 ++
tests/ChangeLog | 5 +++++
tests/Makefile.am | 40 ++++++++++++++++++++++++++++++++++++++++
5 files changed, 54 insertions(+)
diff --git a/ChangeLog b/ChangeLog
index 03c90b6b..fe4f1829 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2020-12-22 Dmitry V. Levin <l...@altlinux.org>
+
+ * configure.ac [--enable-gcov]: Check for gcov, lcov, and genhtml.
+
2020-12-20 Dmitry V. Levin <l...@altlinux.org>
* .gitignore: Move subdirectory patterns to separate .gitignore files.
diff --git a/configure.ac b/configure.ac
index 60747bc8..346ab800 100644
--- a/configure.ac
+++ b/configure.ac
@@ -311,6 +311,9 @@ if test "$use_gcov" = yes; then
CFLAGS="$CFLAGS -fprofile-arcs -ftest-coverage"
CXXFLAGS="$CXXFLAGS -fprofile-arcs -ftest-coverage"
LDFLAGS="$LDFLAGS -fprofile-arcs"
+ AC_CHECK_PROG([GCOV], [gcov], [gcov])
+ AC_CHECK_PROG([LCOV], [lcov], [lcov])
+ AC_CHECK_PROG([GENHTML], [genhtml], [genhtml])
fi
AM_CONDITIONAL(GCOV, test "$use_gcov" = yes)
diff --git a/tests/.gitignore b/tests/.gitignore
index d0e83da2..4aca5c7c 100644
--- a/tests/.gitignore
+++ b/tests/.gitignore
@@ -1,3 +1,5 @@
+/*-coverage
+/*.lcov
/*.log
/*.trs
/addrcfi
diff --git a/tests/ChangeLog b/tests/ChangeLog
index 4688b50a..c0d9d4b8 100644
--- a/tests/ChangeLog
+++ b/tests/ChangeLog
@@ -1,3 +1,8 @@
+2020-12-22 Dmitry V. Levin <l...@altlinux.org>
+
+ * Makefile.am [GCOV] (coverage-html): New target.
+ * .gitignore: Update.
+
2020-12-20 Dmitry V. Levin <l...@altlinux.org>
* .gitignore: New file.
diff --git a/tests/Makefile.am b/tests/Makefile.am
index 502becff..293b4225 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -695,4 +695,44 @@ check: check-am coverage
.PHONY: coverage
coverage:
-$(srcdir)/coverage.sh
+
+COVERAGE_OUTPUT_FILE = $(PACKAGE_NAME)-$(PACKAGE_VERSION).lcov
+COVERAGE_OUTPUT_DIRECTORY = $(PACKAGE_NAME)-$(PACKAGE_VERSION)-coverage
+COVERAGE_OUTPUT_INDEX_HTML = $(COVERAGE_OUTPUT_DIRECTORY)/index.html
+COVERAGE_TITLE = $(PACKAGE_NAME)-$(PACKAGE_VERSION) coverage
+
+CLEANFILES += $(COVERAGE_OUTPUT_FILE)
+
+clean-local: coverage-clean
+distclean-local: coverage-clean
+coverage-clean:
+ -rm -rf $(COVERAGE_OUTPUT_DIRECTORY)
+
+coverage-html: $(COVERAGE_OUTPUT_INDEX_HTML)
+ @echo 'file://$(abs_builddir)/$(COVERAGE_OUTPUT_INDEX_HTML)'
+
+$(COVERAGE_OUTPUT_INDEX_HTML): $(COVERAGE_OUTPUT_FILE)
+ LC_ALL=C $(GENHTML) \
+ --legend \
+ --show-details \
+ --rc=genhtml_branch_coverage=1 \
+ --title='$(COVERAGE_TITLE)' \
+ --prefix='$(top_builddir)' \
+ --prefix='$(abspath $(abs_top_srcdir))' \
+ --output-directory='$(COVERAGE_OUTPUT_DIRECTORY)' \
+ $<
+
+$(COVERAGE_OUTPUT_FILE):
+ $(LCOV) \
+ --capture \
+ --no-checksum \
+ --rc=lcov_branch_coverage=1 \
+ --gcov-tool='$(GCOV)' \
+ --exclude="$$TMPDIR/*" \
+ --exclude='/tmp/*' \
+ --exclude='/usr/include/*' \
+ --exclude='*/tests/*' \
+ --directory='$(top_builddir)' \
+ --output-file='$@'
+
endif
--
ldv
