# =========================================================================== # https://www.gnu.org/software/autoconf-archive/ax_code_coverage.html # =========================================================================== # # SYNOPSIS # # AX_CODE_COVERAGE() # # DESCRIPTION # # Defines CODE_COVERAGE_CPPFLAGS, CODE_COVERAGE_CFLAGS, # CODE_COVERAGE_CXXFLAGS and CODE_COVERAGE_LIBS which should be included # in the CPPFLAGS, CFLAGS CXXFLAGS and LIBS/LIBADD variables of every # build target (program or library) which should be built with code # coverage support. Also defines CODE_COVERAGE_RULES which should be # substituted in your Makefile; and $enable_code_coverage which can be # used in subsequent configure output. CODE_COVERAGE_ENABLED is defined # and substituted, and corresponds to the value of the # --enable-code-coverage option, which defaults to being disabled. # # Test also for gcov program and create GCOV variable that could be # substituted. # # Note that all optimisation flags in CFLAGS must be disabled when code # coverage is enabled. # # Usage example: # # configure.ac: # # AX_CODE_COVERAGE # # Makefile.am: # # @CODE_COVERAGE_RULES@ # my_program_LIBS = ... $(CODE_COVERAGE_LIBS) ... # my_program_CPPFLAGS = ... $(CODE_COVERAGE_CPPFLAGS) ... # my_program_CFLAGS = ... $(CODE_COVERAGE_CFLAGS) ... # my_program_CXXFLAGS = ... $(CODE_COVERAGE_CXXFLAGS) ... # # This results in a "check-code-coverage" rule being added to any # Makefile.am which includes "@CODE_COVERAGE_RULES@" (assuming the module # has been configured with --enable-code-coverage). Running `make # check-code-coverage` in that directory will run the module's test suite # (`make check`) and build a code coverage report detailing the code which # was touched, then print the URI for the report. # # In earlier versions of this macro, CODE_COVERAGE_LDFLAGS was defined # instead of CODE_COVERAGE_LIBS. They are both still defined, but use of # CODE_COVERAGE_LIBS is preferred for clarity; CODE_COVERAGE_LDFLAGS is # deprecated. They have the same value. # # This code was derived from Makefile.decl in GLib, originally licenced # under LGPLv2.1+. # # LICENSE # # Copyright (c) 2012, 2016 Philip Withnall # Copyright (c) 2012 Xan Lopez # Copyright (c) 2012 Christian Persch # Copyright (c) 2012 Paolo Borelli # Copyright (c) 2012 Dan Winship # Copyright (c) 2015 Bastien ROUCARIES # # This library is free software; you can redistribute it and/or modify it # under the terms of the GNU Lesser General Public License as published by # the Free Software Foundation; either version 2.1 of the License, or (at # your option) any later version. # # This library is distributed in the hope that it will be useful, but # WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser # General Public License for more details. # # You should have received a copy of the GNU Lesser General Public License # along with this program. If not, see . #serial 21 AC_DEFUN([AX_CODE_COVERAGE],[ dnl Check for --enable-code-coverage AC_REQUIRE([AC_PROG_SED]) # allow to override gcov location AC_ARG_WITH([gcov], [AS_HELP_STRING([--with-gcov[=GCOV]], [use given GCOV for coverage (GCOV=gcov).])], [_AX_CODE_COVERAGE_GCOV_PROG_WITH=$with_gcov], [_AX_CODE_COVERAGE_GCOV_PROG_WITH=gcov]) AC_MSG_CHECKING([whether to build with code coverage support]) AC_ARG_ENABLE([code-coverage], AS_HELP_STRING([--enable-code-coverage], [Whether to enable code coverage support]),, enable_code_coverage=no) AM_CONDITIONAL([CODE_COVERAGE_ENABLED], [test x$enable_code_coverage = xyes]) AC_SUBST([CODE_COVERAGE_ENABLED], [$enable_code_coverage]) AC_MSG_RESULT($enable_code_coverage) AS_IF([ test "$enable_code_coverage" = "yes" ], [ # check for gcov AC_CHECK_TOOL([GCOV], [$_AX_CODE_COVERAGE_GCOV_PROG_WITH], [:]) AS_IF([test "X$GCOV" = "X:"], [AC_MSG_ERROR([gcov is needed to do coverage])]) AC_SUBST([GCOV]) dnl Check if gcc is being used AS_IF([ test "$GCC" = "no" ], [ AC_MSG_ERROR([not compiling with gcc, which is required for gcov code coverage]) ]) AC_CHECK_PROG([LCOV], [lcov], [lcov]) AC_CHECK_PROG([GENHTML], [genhtml], [genhtml]) AS_IF([ test -z "$LCOV" ], [ AC_MSG_ERROR([To enable code coverage reporting you must have lcov installed]) ]) AS_IF([ test -z "$GENHTML" ], [ AC_MSG_ERROR([Could not find genhtml from the lcov package]) ]) dnl Build the code coverage flags dnl Define CODE_COVERAGE_LDFLAGS for backwards compatibility CODE_COVERAGE_CPPFLAGS="-DNDEBUG" CODE_COVERAGE_CFLAGS="-O0 -g -fprofile-arcs -ftest-coverage" CODE_COVERAGE_CXXFLAGS="-O0 -g -fprofile-arcs -ftest-coverage" CODE_COVERAGE_LIBS="-lgcov" CODE_COVERAGE_LDFLAGS="$CODE_COVERAGE_LIBS" AC_SUBST([CODE_COVERAGE_CPPFLAGS]) AC_SUBST([CODE_COVERAGE_CFLAGS]) AC_SUBST([CODE_COVERAGE_CXXFLAGS]) AC_SUBST([CODE_COVERAGE_LIBS]) AC_SUBST([CODE_COVERAGE_LDFLAGS]) [CODE_COVERAGE_RULES_CHECK=' -$(A''M_V_at)$(MAKE) $(AM_MAKEFLAGS) -k check $(A''M_V_at)$(MAKE) $(AM_MAKEFLAGS) code-coverage-capture '] [CODE_COVERAGE_RULES_CAPTURE=' $(code_coverage_v_lcov_cap)$(LCOV) $(code_coverage_quiet) $(addprefix --directory ,$(CODE_COVERAGE_DIRECTORY)) --capture --output-file "$(CODE_COVERAGE_OUTPUT_FILE).tmp" --test-name "$(call code_coverage_sanitize,$(PACKAGE_NAME)-$(PACKAGE_VERSION))" --no-checksum --compat-libtool $(CODE_COVERAGE_LCOV_SHOPTS) $(CODE_COVERAGE_LCOV_OPTIONS) $(code_coverage_v_lcov_ign)$(LCOV) $(code_coverage_quiet) $(addprefix --directory ,$(CODE_COVERAGE_DIRECTORY)) --remove "$(CODE_COVERAGE_OUTPUT_FILE).tmp" "/tmp/*" $(CODE_COVERAGE_IGNORE_PATTERN) --output-file "$(CODE_COVERAGE_OUTPUT_FILE)" $(CODE_COVERAGE_LCOV_SHOPTS) $(CODE_COVERAGE_LCOV_RMOPTS) -@rm -f $(CODE_COVERAGE_OUTPUT_FILE).tmp $(code_coverage_v_genhtml)LANG=C $(GENHTML) $(code_coverage_quiet) $(addprefix --prefix ,$(CODE_COVERAGE_DIRECTORY)) --output-directory "$(CODE_COVERAGE_OUTPUT_DIRECTORY)" --title "$(PACKAGE_NAME)-$(PACKAGE_VERSION) Code Coverage" --legend --show-details "$(CODE_COVERAGE_OUTPUT_FILE)" $(CODE_COVERAGE_GENHTML_OPTIONS) @echo "file://$(abs_builddir)/$(CODE_COVERAGE_OUTPUT_DIRECTORY)/index.html" '] [CODE_COVERAGE_RULES_CLEAN=' clean: code-coverage-clean distclean: code-coverage-clean code-coverage-clean: -$(LCOV) --directory $(top_builddir) -z -rm -rf $(CODE_COVERAGE_OUTPUT_FILE) $(CODE_COVERAGE_OUTPUT_FILE).tmp $(CODE_COVERAGE_OUTPUT_DIRECTORY) -find . \( -name "*.gcda" -o -name "*.gcno" -o -name "*.gcov" \) -delete '] ], [ [CODE_COVERAGE_RULES_CHECK=' @echo "Need to reconfigure with --enable-code-coverage" '] CODE_COVERAGE_RULES_CAPTURE="$CODE_COVERAGE_RULES_CHECK" CODE_COVERAGE_RULES_CLEAN='' ]) [CODE_COVERAGE_RULES=' # Code coverage # # Optional: # - CODE_COVERAGE_DIRECTORY: Top-level directory for code coverage reporting. # Multiple directories may be specified, separated by whitespace. # (Default: $(top_builddir)) # - CODE_COVERAGE_OUTPUT_FILE: Filename and path for the .info file generated # by lcov for code coverage. (Default: # $(PACKAGE_NAME)-$(PACKAGE_VERSION)-coverage.info) # - CODE_COVERAGE_OUTPUT_DIRECTORY: Directory for generated code coverage # reports to be created. (Default: # $(PACKAGE_NAME)-$(PACKAGE_VERSION)-coverage) # - CODE_COVERAGE_BRANCH_COVERAGE: Set to 1 to enforce branch coverage, # set to 0 to disable it and leave empty to stay with the default. # (Default: empty) # - CODE_COVERAGE_LCOV_SHOPTS_DEFAULT: Extra options shared between both lcov # instances. (Default: based on $CODE_COVERAGE_BRANCH_COVERAGE) # - CODE_COVERAGE_LCOV_SHOPTS: Extra options to shared between both lcov # instances. (Default: $CODE_COVERAGE_LCOV_SHOPTS_DEFAULT) # - CODE_COVERAGE_LCOV_OPTIONS_GCOVPATH: --gcov-tool pathtogcov # - CODE_COVERAGE_LCOV_OPTIONS_DEFAULT: Extra options to pass to the # collecting lcov instance. (Default: $CODE_COVERAGE_LCOV_OPTIONS_GCOVPATH) # - CODE_COVERAGE_LCOV_OPTIONS: Extra options to pass to the collecting lcov # instance. (Default: $CODE_COVERAGE_LCOV_OPTIONS_DEFAULT) # - CODE_COVERAGE_LCOV_RMOPTS_DEFAULT: Extra options to pass to the filtering # lcov instance. (Default: empty) # - CODE_COVERAGE_LCOV_RMOPTS: Extra options to pass to the filtering lcov # instance. (Default: $CODE_COVERAGE_LCOV_RMOPTS_DEFAULT) # - CODE_COVERAGE_GENHTML_OPTIONS_DEFAULT: Extra options to pass to the # genhtml instance. (Default: based on $CODE_COVERAGE_BRANCH_COVERAGE) # - CODE_COVERAGE_GENHTML_OPTIONS: Extra options to pass to the genhtml # instance. (Default: $CODE_COVERAGE_GENHTML_OPTIONS_DEFAULT) # - CODE_COVERAGE_IGNORE_PATTERN: Extra glob pattern of files to ignore # # The generated report will be titled using the $(PACKAGE_NAME) and # $(PACKAGE_VERSION). In order to add the current git hash to the title, # use the git-version-gen script, available online. # Optional variables CODE_COVERAGE_DIRECTORY ?= $(top_builddir) CODE_COVERAGE_OUTPUT_FILE ?= $(PACKAGE_NAME)-$(PACKAGE_VERSION)-coverage.info CODE_COVERAGE_OUTPUT_DIRECTORY ?= $(PACKAGE_NAME)-$(PACKAGE_VERSION)-coverage CODE_COVERAGE_BRANCH_COVERAGE ?= CODE_COVERAGE_LCOV_SHOPTS_DEFAULT ?= $(if $(CODE_COVERAGE_BRANCH_COVERAGE),\ --rc lcov_branch_coverage=$(CODE_COVERAGE_BRANCH_COVERAGE)) CODE_COVERAGE_LCOV_SHOPTS ?= $(CODE_COVERAGE_LCOV_SHOPTS_DEFAULT) CODE_COVERAGE_LCOV_OPTIONS_GCOVPATH ?= --gcov-tool "$(GCOV)" CODE_COVERAGE_LCOV_OPTIONS_DEFAULT ?= $(CODE_COVERAGE_LCOV_OPTIONS_GCOVPATH) CODE_COVERAGE_LCOV_OPTIONS ?= $(CODE_COVERAGE_LCOV_OPTIONS_DEFAULT) CODE_COVERAGE_LCOV_RMOPTS_DEFAULT ?= CODE_COVERAGE_LCOV_RMOPTS ?= $(CODE_COVERAGE_LCOV_RMOPTS_DEFAULT) CODE_COVERAGE_GENHTML_OPTIONS_DEFAULT ?=\ $(if $(CODE_COVERAGE_BRANCH_COVERAGE),\ --rc genhtml_branch_coverage=$(CODE_COVERAGE_BRANCH_COVERAGE)) CODE_COVERAGE_GENHTML_OPTIONS ?= $(CODE_COVERAGE_GENHTML_OPTIONS_DEFAULTS) CODE_COVERAGE_IGNORE_PATTERN ?= code_coverage_v_lcov_cap = $(code_coverage_v_lcov_cap_$(V)) code_coverage_v_lcov_cap_ = $(code_coverage_v_lcov_cap_$(AM_DEFAULT_VERBOSITY)) code_coverage_v_lcov_cap_0 = @echo " LCOV --capture"\ $(CODE_COVERAGE_OUTPUT_FILE); code_coverage_v_lcov_ign = $(code_coverage_v_lcov_ign_$(V)) code_coverage_v_lcov_ign_ = $(code_coverage_v_lcov_ign_$(AM_DEFAULT_VERBOSITY)) code_coverage_v_lcov_ign_0 = @echo " LCOV --remove /tmp/*"\ $(CODE_COVERAGE_IGNORE_PATTERN); code_coverage_v_genhtml = $(code_coverage_v_genhtml_$(V)) code_coverage_v_genhtml_ = $(code_coverage_v_genhtml_$(AM_DEFAULT_VERBOSITY)) code_coverage_v_genhtml_0 = @echo " GEN " $(CODE_COVERAGE_OUTPUT_DIRECTORY); code_coverage_quiet = $(code_coverage_quiet_$(V)) code_coverage_quiet_ = $(code_coverage_quiet_$(AM_DEFAULT_VERBOSITY)) code_coverage_quiet_0 = --quiet # sanitizes the test-name: replaces with underscores: dashes and dots code_coverage_sanitize = $(subst -,_,$(subst .,_,$(1))) # Use recursive makes in order to ignore errors during check check-code-coverage:'"$CODE_COVERAGE_RULES_CHECK"' # Capture code coverage data code-coverage-capture: code-coverage-capture-hook'"$CODE_COVERAGE_RULES_CAPTURE"' # Hook rule executed before code-coverage-capture, overridable by the user code-coverage-capture-hook: '"$CODE_COVERAGE_RULES_CLEAN"' GITIGNOREFILES ?= GITIGNOREFILES += $(CODE_COVERAGE_OUTPUT_FILE) $(CODE_COVERAGE_OUTPUT_DIRECTORY) A''M_DISTCHECK_CONFIGURE_FLAGS ?= A''M_DISTCHECK_CONFIGURE_FLAGS += --disable-code-coverage .PHONY: check-code-coverage code-coverage-capture code-coverage-capture-hook code-coverage-clean '] AC_SUBST([CODE_COVERAGE_RULES]) m4_ifdef([_AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE([CODE_COVERAGE_RULES])]) ])