Starting with version 2.0, various lcov warnings now trigger an error
exit. This results in 'make coverage' terminating before completion.
Fix this by invoking lcov and genhtml with --ignore-errors to prevent
the error exit when version 2.0+ is in use.
Manually tested by running elfutils-htdocs/update-coverage.sh with
lcov 1.14 and 2.0.
Signed-off-by: Aaron Merey
---
Makefile.am | 30 +-
configure.ac | 4
2 files changed, 33 insertions(+), 1 deletion(-)
diff --git a/Makefile.am b/Makefile.am
index c9d59d4a..a1f0b0c3 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -77,6 +77,7 @@ coverage-clean:
coverage: $(COVERAGE_OUTPUT_INDEX_HTML)
@echo 'file://$(abs_builddir)/$(COVERAGE_OUTPUT_INDEX_HTML)'
+if LCOV_OLD
$(COVERAGE_OUTPUT_INDEX_HTML): $(COVERAGE_OUTPUT_FILE)
LC_ALL=C $(GENHTML) \
--legend \
@@ -89,7 +90,23 @@ $(COVERAGE_OUTPUT_INDEX_HTML): $(COVERAGE_OUTPUT_FILE)
--prefix='$(realpath $(abs_builddir)/..)' \
--output-directory='$(COVERAGE_OUTPUT_DIRECTORY)' \
$<
+else
+$(COVERAGE_OUTPUT_INDEX_HTML): $(COVERAGE_OUTPUT_FILE)
+ LC_ALL=C $(GENHTML) \
+ --legend \
+ --show-details \
+ --ignore-errors empty,negative \
+ --rc=genhtml_branch_coverage=1 \
+ --title='$(COVERAGE_TITLE)' \
+ --prefix='$(abspath $(abs_srcdir))' \
+ --prefix='$(realpath $(abs_srcdir))' \
+ --prefix='$(abspath $(abs_builddir)/..)' \
+ --prefix='$(realpath $(abs_builddir)/..)' \
+ --output-directory='$(COVERAGE_OUTPUT_DIRECTORY)' \
+ $<
+endif
+if LCOV_OLD
$(COVERAGE_OUTPUT_FILE):
$(LCOV) \
--capture \
@@ -99,7 +116,18 @@ $(COVERAGE_OUTPUT_FILE):
--gcov-tool='$(GCOV)' \
--output-file='$@' \
$(LCOV_DIRS_ARGS)
-
+else
+$(COVERAGE_OUTPUT_FILE):
+ $(LCOV) \
+ --capture \
+ --no-external \
+ --no-checksum \
+ --ignore-errors empty,negative \
+ --rc=lcov_branch_coverage=1 \
+ --gcov-tool='$(GCOV)' \
+ --output-file='$@' \
+ $(LCOV_DIRS_ARGS)
+endif
endif
# Tell version 3.79 and up of GNU make to not build goals in this
diff --git a/configure.ac b/configure.ac
index a279bb52..2aa728bd 100644
--- a/configure.ac
+++ b/configure.ac
@@ -322,6 +322,10 @@ if test "$use_gcov" = yes; then
fi
AM_CONDITIONAL(GCOV, test "$use_gcov" = yes)
+# Check if lcov/genhtml supports ignoring additional errors.
+AM_CONDITIONAL([LCOV_OLD],
+ [test "$LCOV" = "lcov" && lcov --version | grep -E -q "version 0|version 1"])
+
AC_ARG_ENABLE([sanitize-undefined],
AS_HELP_STRING([--enable-sanitize-undefined],
[Use gcc undefined behaviour sanitizer]),
--
2.43.0
