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build: coverage: disable branch coverage generation to avoid hangs in gcov 

I have seen hangs with gcov on Jenkins and locally where the processing just
keeps spinning in an infinite loop. From what I have found out this boils down
to using gcov --all-blocks which is what lcov does with branch coverage enabled.
It is supposed to be fixed in gcc 4.8+ but I see this here with 5.3.1. So its
either a regression or not completely fixed. In any case we will ignore branch
coverage for now. I hoped it would work well but it did only for a while and
having line and function coverage is better than having nothing.
This commit is contained in:
Stefan Schmidt 2016-12-07 17:35:57 +01:00
parent eafb05c58a
commit 14c19e1c6f
2 changed files with 8 additions and 10 deletions
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2
.lcov-config
View File

@ -1,3 +1 @@
geninfo_auto_base=1
lcov_branch_coverage=1
genhtml_branch_coverage=1

16
Makefile.am
View File

@ -451,16 +451,16 @@ lcov-reset:
lcov-baseline:
$(MKDIR_P) $(top_builddir)/coverage
lcov --capture --initial --compat-libtool --no-external --output-file $(top_builddir)/coverage/coverage-baseline.info --directory $(top_builddir) --config-file .lcov-config --rc lcov_branch_coverage=1
lcov --capture --initial --compat-libtool --no-external --output-file $(top_builddir)/coverage/coverage-baseline.info --directory $(top_builddir) --config-file .lcov-config
lcov-report:
lcov --capture --compat-libtool --no-external --output-file $(top_builddir)/coverage/coverage-check.info --directory $(top_builddir) --config-file .lcov-config --rc lcov_branch_coverage=1
lcov --no-external --compat-libtool --add-tracefile $(top_builddir)/coverage/coverage-baseline.info --add-tracefile $(top_builddir)/coverage/coverage-check.info --output-file $(top_builddir)/coverage/coverage.info --config-file .lcov-config --rc lcov_branch_coverage=1
lcov --no-external --compat-libtool --remove $(top_builddir)/coverage/coverage.info '*.h' --output-file $(top_builddir)/coverage/coverage.cleaned.info --config-file .lcov-config --rc lcov_branch_coverage=1
lcov --no-external --compat-libtool --remove $(top_builddir)/coverage/coverage.cleaned.info '*/tests/*' --output-file $(top_builddir)/coverage/coverage.cleaned2.info --config-file .lcov-config --rc lcov_branch_coverage=1
lcov --no-external --compat-libtool --remove $(top_builddir)/coverage/coverage.cleaned2.info '*NONE*' --output-file $(top_builddir)/coverage/coverage.cleaned3.info --config-file .lcov-config --rc lcov_branch_coverage=1
lcov --no-external --compat-libtool --remove $(top_builddir)/coverage/coverage.cleaned3.info '*/doc/*' --output-file $(top_builddir)/coverage/coverage.cleaned4.info --config-file .lcov-config --rc lcov_branch_coverage=1
lcov --no-external --compat-libtool --remove $(top_builddir)/coverage/coverage.cleaned4.info '*usr/include*' --output-file $(top_builddir)/coverage/coverage.cleaned5.info --config-file .lcov-config --rc lcov_branch_coverage=1
lcov --capture --compat-libtool --no-external --output-file $(top_builddir)/coverage/coverage-check.info --directory $(top_builddir) --config-file .lcov-config
lcov --no-external --compat-libtool --add-tracefile $(top_builddir)/coverage/coverage-baseline.info --add-tracefile $(top_builddir)/coverage/coverage-check.info --output-file $(top_builddir)/coverage/coverage.info --config-file .lcov-config
lcov --no-external --compat-libtool --remove $(top_builddir)/coverage/coverage.info '*.h' --output-file $(top_builddir)/coverage/coverage.cleaned.info --config-file .lcov-config
lcov --no-external --compat-libtool --remove $(top_builddir)/coverage/coverage.cleaned.info '*/tests/*' --output-file $(top_builddir)/coverage/coverage.cleaned2.info --config-file .lcov-config
lcov --no-external --compat-libtool --remove $(top_builddir)/coverage/coverage.cleaned2.info '*NONE*' --output-file $(top_builddir)/coverage/coverage.cleaned3.info --config-file .lcov-config
lcov --no-external --compat-libtool --remove $(top_builddir)/coverage/coverage.cleaned3.info '*/doc/*' --output-file $(top_builddir)/coverage/coverage.cleaned4.info --config-file .lcov-config
lcov --no-external --compat-libtool --remove $(top_builddir)/coverage/coverage.cleaned4.info '*usr/include*' --output-file $(top_builddir)/coverage/coverage.cleaned5.info --config-file .lcov-config
genhtml --config-file .lcov-config --legend -t "$(PACKAGE_STRING)" -o $(top_builddir)/coverage/html $(top_builddir)/coverage/coverage.cleaned5.info
@echo "Coverage Report at $(top_builddir)/coverage/html"