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e72e7e7e81
configure now has a "--enable-code-coverage" option, and if the
lcov/gcov tools are available a code coverage report can be built with
"make check-code-coverage".
this is mostly based on the AX_CODE_COVERAGE / GNOME_CODE_COVERAGE
macro:
http://savannah.gnu.org/patch/?8451
but i also looked at knot-dns's code coverage implementation:
https://github.com/CZNIC-Labs/knot/blob/master/m4/code-coverage.m4
and kevin lyda's pull request:
https://github.com/protobuf-c/protobuf-c/pull/131/files
159 lines
6.3 KiB
Plaintext
159 lines
6.3 KiB
Plaintext
# SYNOPSIS
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#
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# MY_CODE_COVERAGE()
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#
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# DESCRIPTION
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#
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# Defines CODE_COVERAGE_CFLAGS and CODE_COVERAGE_LDFLAGS which should be
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# included in the CFLAGS and LIBS/LDFLAGS variables of every build target
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# (program or library) which should be built with code coverage support.
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# Also defines CODE_COVERAGE_RULES which should be substituted in your
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# Makefile; and $enable_code_coverage which can be used in subsequent
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# configure output. CODE_COVERAGE_ENABLED is defined and substituted, and
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# corresponds to the value of the --enable-code-coverage option, which
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# defaults to being disabled.
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#
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# Usage example:
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# configure.ac:
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# MY_CODE_COVERAGE
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#
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# Makefile.am:
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# @CODE_COVERAGE_RULES@
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# my_program_LIBS = … $(CODE_COVERAGE_LDFLAGS) …
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# my_program_CFLAGS = … $(CODE_COVERAGE_CFLAGS) …
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#
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# This results in a “check-code-coverage” rule being added to any Makefile.am
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# which includes “@CODE_COVERAGE_RULES@” (assuming the module has been
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# configured with --enable-code-coverage). Running `make check-code-coverage`
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# in that directory will run the module’s test suite (`make check`) and build
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# a code coverage report detailing the code which was touched, then print the
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# URI for the report.
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#
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# LICENSE
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#
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# Copyright © 2012, 2014 Philip Withnall
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# Copyright © 2012 Xan Lopez
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# Copyright © 2012 Christian Persch
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# Copyright © 2012 Paolo Borelli
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# Copyright © 2012 Dan Winship
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#
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# Derived from Makefile.decl in GLib, originally licenced under LGPLv2.1+.
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# This file is licenced under LGPLv2.1+.
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AC_DEFUN([MY_CODE_COVERAGE],[
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dnl Check for --enable-code-coverage
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AC_MSG_CHECKING([whether to build with code coverage support])
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AC_ARG_ENABLE([code-coverage], AS_HELP_STRING([--enable-code-coverage], [Whether to enable code coverage support]),, enable_code_coverage=no)
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AM_CONDITIONAL([CODE_COVERAGE_ENABLED], [test x$enable_code_coverage = xyes])
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AC_SUBST([CODE_COVERAGE_ENABLED], [$enable_code_coverage])
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AC_MSG_RESULT($enable_code_coverage)
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AS_IF([ test "$enable_code_coverage" = "yes" ], [
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dnl Check if gcc is being used
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AS_IF([ test "$GCC" = "no" ], [
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AC_MSG_ERROR([not compiling with gcc, which is required for gcov code coverage])
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])
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AC_CHECK_PROG([LCOV], [lcov], [lcov])
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AC_CHECK_PROG([GENHTML], [genhtml], [genhtml])
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AS_IF([ test -z "$LCOV" ], [
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AC_MSG_ERROR([The lcov program was not found. Please install lcov!])
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])
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AS_IF([ test -z "$GENHTML" ], [
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AC_MSG_ERROR([The genhtml program was not found. Please install lcov!])
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])
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dnl Build the code coverage flags
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CODE_COVERAGE_CFLAGS="-O0 -g --coverage"
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CODE_COVERAGE_LDFLAGS="--coverage"
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AC_SUBST([CODE_COVERAGE_CFLAGS])
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AC_SUBST([CODE_COVERAGE_LDFLAGS])
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dnl Strip optimisation flags
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changequote({,})
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CFLAGS=`echo "$CFLAGS" | $SED -e 's/-O[0-9]*//g'`
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changequote([,])
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])
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CODE_COVERAGE_RULES='
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# Code coverage
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#
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# Optional:
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# - CODE_COVERAGE_DIRECTORY: Top-level directory for code coverage reporting.
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# (Default: $(top_builddir))
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# - CODE_COVERAGE_OUTPUT_FILE: Filename and path for the .info file generated
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# by lcov for code coverage. (Default:
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# $(PACKAGE_NAME)-$(PACKAGE_VERSION)-coverage.info)
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# - CODE_COVERAGE_OUTPUT_DIRECTORY: Directory for generated code coverage
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# reports to be created. (Default:
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# $(PACKAGE_NAME)-$(PACKAGE_VERSION)-coverage)
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# - CODE_COVERAGE_LCOV_OPTIONS: Extra options to pass to the lcov instance.
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# (Default: empty)
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# - CODE_COVERAGE_GENHTML_OPTIONS: Extra options to pass to the genhtml
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# instance. (Default: empty)
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# - CODE_COVERAGE_IGNORE_PATTERN: Extra glob pattern of files to ignore
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#
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# The generated report will be titled using the $(PACKAGE_NAME) and
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# $(PACKAGE_VERSION). In order to add the current git hash to the title,
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# use the git-version-gen script, available online.
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# Optional variables
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CODE_COVERAGE_DIRECTORY ?= $(abs_top_builddir)
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CODE_COVERAGE_OUTPUT_FILE ?= $(PACKAGE_NAME)-$(PACKAGE_VERSION)-coverage.info
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CODE_COVERAGE_OUTPUT_DIRECTORY ?= $(PACKAGE_NAME)-$(PACKAGE_VERSION)-coverage
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CODE_COVERAGE_LCOV_OPTIONS ?=
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CODE_COVERAGE_GENHTML_OPTIONS ?=
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CODE_COVERAGE_IGNORE_PATTERN ?=
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code_coverage_quiet = $(code_coverage_quiet_$(V))
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code_coverage_quiet_ = $(code_coverage_quiet_$(AM_DEFAULT_VERBOSITY))
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code_coverage_quiet_0 = --quiet
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# Use recursive makes in order to ignore errors during check
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check-code-coverage:
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ifeq ($(CODE_COVERAGE_ENABLED),yes)
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-$(MAKE) $(AM_MAKEFLAGS) -k check
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$(MAKE) $(AM_MAKEFLAGS) code-coverage-capture
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else
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@echo "Need to reconfigure with --enable-code-coverage"
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endif
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# Capture code coverage data
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code-coverage-capture: code-coverage-capture-hook
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ifeq ($(CODE_COVERAGE_ENABLED),yes)
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$(LCOV) $(code_coverage_quiet) --directory $(CODE_COVERAGE_DIRECTORY) --capture --output-file "$(CODE_COVERAGE_OUTPUT_FILE).tmp" --test-name "$(PACKAGE_NAME)-$(PACKAGE_VERSION)" --no-checksum --compat-libtool $(CODE_COVERAGE_LCOV_OPTIONS)
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$(LCOV) $(code_coverage_quiet) --directory $(CODE_COVERAGE_DIRECTORY) --remove "$(CODE_COVERAGE_OUTPUT_FILE).tmp" "/tmp/*" $(CODE_COVERAGE_IGNORE_PATTERN) --output-file "$(CODE_COVERAGE_OUTPUT_FILE)"
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-@rm -f $(CODE_COVERAGE_OUTPUT_FILE).tmp
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LANG=C $(GENHTML) $(code_coverage_quiet) --prefix $(CODE_COVERAGE_DIRECTORY) --output-directory "$(CODE_COVERAGE_OUTPUT_DIRECTORY)" --title "$(PACKAGE_NAME)-$(PACKAGE_VERSION) Code Coverage" --legend --show-details "$(CODE_COVERAGE_OUTPUT_FILE)" $(CODE_COVERAGE_GENHTML_OPTIONS)
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@echo "file://$(abs_builddir)/$(CODE_COVERAGE_OUTPUT_DIRECTORY)/index.html"
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else
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@echo "Need to reconfigure with --enable-code-coverage"
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endif
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# Hook rule executed before code-coverage-capture, overridable by the user
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code-coverage-capture-hook:
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ifeq ($(CODE_COVERAGE_ENABLED),yes)
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clean: code-coverage-clean
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code-coverage-clean:
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-$(LCOV) --directory $(CODE_COVERAGE_DIRECTORY) -z
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-rm -rf $(CODE_COVERAGE_OUTPUT_FILE) $(CODE_COVERAGE_OUTPUT_FILE).tmp $(CODE_COVERAGE_OUTPUT_DIRECTORY)
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-find . -name "*.gcda" -o -name "*.gcov" -delete
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endif
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GITIGNOREFILES ?=
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GITIGNOREFILES += $(CODE_COVERAGE_OUTPUT_FILE) $(CODE_COVERAGE_OUTPUT_DIRECTORY)
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DISTCHECK_CONFIGURE_FLAGS ?=
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DISTCHECK_CONFIGURE_FLAGS += --disable-code-coverage
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.PHONY: check-code-coverage code-coverage-capture code-coverage-capture-hook code-coverage-clean
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'
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AC_SUBST([CODE_COVERAGE_RULES])
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m4_ifdef([_AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE([CODE_COVERAGE_RULES])])
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])
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