Dave Airlie
9 years ago
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# =========================================================================== |
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# http://www.gnu.org/software/autoconf-archive/ax_code_coverage.html |
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# =========================================================================== |
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# |
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# SYNOPSIS |
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# |
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# AX_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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# Test also for gcov program and create GCOV variable that could be |
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# substituted. |
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# |
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# Note that all optimisation flags in CFLAGS must be disabled when code |
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# coverage is enabled. |
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# |
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# Usage example: |
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# |
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# configure.ac: |
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# |
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# AX_CODE_COVERAGE |
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# |
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# Makefile.am: |
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# |
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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 |
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# Makefile.am which includes "@CODE_COVERAGE_RULES@" (assuming the module |
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# has been configured with --enable-code-coverage). Running `make |
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# check-code-coverage` in that directory will run the module's test suite |
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# (`make check`) and build a code coverage report detailing the code which |
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# was touched, then print the URI for the report. |
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# |
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# This code was derived from Makefile.decl in GLib, originally licenced |
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# under LGPLv2.1+. |
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# |
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# LICENSE |
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# |
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# Copyright (c) 2012 Philip Withnall |
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# Copyright (c) 2012 Xan Lopez |
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# Copyright (c) 2012 Christian Persch |
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# Copyright (c) 2012 Paolo Borelli |
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# Copyright (c) 2012 Dan Winship |
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# Copyright (c) 2015 Bastien ROUCARIES |
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# |
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# This library is free software; you can redistribute it and/or modify it |
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# under the terms of the GNU Lesser General Public License as published by |
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# the Free Software Foundation; either version 2.1 of the License, or (at |
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# your option) any later version. |
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# |
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# This library is distributed in the hope that it will be useful, but |
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# WITHOUT ANY WARRANTY; without even the implied warranty of |
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser |
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# General Public License for more details. |
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# |
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# You should have received a copy of the GNU Lesser General Public License |
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# along with this program. If not, see <http://www.gnu.org/licenses/>. |
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|
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#serial 5 |
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|
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AC_DEFUN([AX_CODE_COVERAGE],[ |
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dnl Check for --enable-code-coverage |
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AC_REQUIRE([AC_PROG_SED]) |
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|
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# allow to override gcov location |
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AC_ARG_WITH([gcov], |
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[AS_HELP_STRING([--with-gcov[=GCOV]], [use given GCOV for coverage (GCOV=gcov).])], |
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[_AX_CODE_COVERAGE_GCOV_PROG_WITH=$with_gcov], |
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[_AX_CODE_COVERAGE_GCOV_PROG_WITH=gcov]) |
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|
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AC_MSG_CHECKING([whether to build with code coverage support]) |
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AC_ARG_ENABLE([code-coverage], |
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AS_HELP_STRING([--enable-code-coverage], |
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[Whether to enable code coverage support]),, |
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enable_code_coverage=no) |
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|
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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($enable_code_coverage) |
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|
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AS_IF([ test "$enable_code_coverage" = "yes" ], [ |
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# check for gcov |
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AC_CHECK_TOOL([GCOV], |
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[$_AX_CODE_COVERAGE_GCOV_PROG_WITH], |
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[:]) |
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AS_IF([test "X$GCOV" = "X:"], |
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[AC_MSG_ERROR([gcov is needed to do coverage])]) |
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AC_SUBST([GCOV]) |
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|
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dnl Check if gcc is being used |
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AS_IF([ test "$GCC" = "no" ], [ |
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AC_MSG_ERROR([not compiling with gcc, which is required for gcov code coverage]) |
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]) |
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|
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# List of supported lcov versions. |
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lcov_version_list="1.6 1.7 1.8 1.9 1.10 1.11" |
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|
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AC_CHECK_PROG([LCOV], [lcov], [lcov]) |
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AC_CHECK_PROG([GENHTML], [genhtml], [genhtml]) |
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|
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AS_IF([ test "$LCOV" ], [ |
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AC_CACHE_CHECK([for lcov version], ax_cv_lcov_version, [ |
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ax_cv_lcov_version=invalid |
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lcov_version=`$LCOV -v 2>/dev/null | $SED -e 's/^.* //'` |
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for lcov_check_version in $lcov_version_list; do |
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if test "$lcov_version" = "$lcov_check_version"; then |
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ax_cv_lcov_version="$lcov_check_version (ok)" |
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fi |
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done |
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]) |
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], [ |
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lcov_msg="To enable code coverage reporting you must have one of the following lcov versions installed: $lcov_version_list" |
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AC_MSG_ERROR([$lcov_msg]) |
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]) |
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|
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case $ax_cv_lcov_version in |
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""|invalid[)] |
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lcov_msg="You must have one of the following versions of lcov: $lcov_version_list (found: $lcov_version)." |
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AC_MSG_ERROR([$lcov_msg]) |
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LCOV="exit 0;" |
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;; |
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esac |
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|
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AS_IF([ test -z "$GENHTML" ], [ |
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AC_MSG_ERROR([Could not find genhtml from the lcov package]) |
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]) |
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|
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dnl Build the code coverage flags |
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CODE_COVERAGE_CFLAGS="-O0 -g -fprofile-arcs -ftest-coverage" |
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CODE_COVERAGE_LDFLAGS="-lgcov" |
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|
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AC_SUBST([CODE_COVERAGE_CFLAGS]) |
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AC_SUBST([CODE_COVERAGE_LDFLAGS]) |
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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_GCOVPATH: --gcov-tool pathtogcov |
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# - CODE_COVERAGE_LCOV_OPTIONS_DEFAULT: Extra options to pass to the lcov instance. |
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# (Default: $CODE_COVERAGE_LCOV_OPTIONS_GCOVPATH) |
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# - CODE_COVERAGE_LCOV_OPTIONS: Extra options to pass to the lcov instance. |
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# (Default: $CODE_COVERAGE_LCOV_OPTIONS_DEFAULT) |
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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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|
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# Optional variables |
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CODE_COVERAGE_DIRECTORY ?= $(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_GCOVPATH ?= --gcov-tool "$(GCOV)" |
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CODE_COVERAGE_LCOV_OPTIONS_DEFAULT ?= $(CODE_COVERAGE_LCOV_OPTIONS_GCOVPATH) |
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CODE_COVERAGE_LCOV_OPTIONS ?= $(CODE_COVERAGE_LCOV_OPTIONS_DEFAULT) |
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CODE_COVERAGE_GENHTML_OPTIONS ?= |
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CODE_COVERAGE_IGNORE_PATTERN ?= |
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|
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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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|
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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) $(AM_MAKEFLAGS) code-coverage-capture |
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else |
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@echo "Need to reconfigure with --enable-code-coverage" |
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endif |
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|
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# Capture code coverage data |
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code-coverage-capture: code-coverage-capture-hook |
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ifeq ($(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)/$(CODE_COVERAGE_OUTPUT_DIRECTORY)/index.html" |
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else |
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@echo "Need to reconfigure with --enable-code-coverage" |
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endif |
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|
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# Hook rule executed before code-coverage-capture, overridable by the user |
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code-coverage-capture-hook: |
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ifeq ($(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 $(top_builddir) -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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|
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GITIGNOREFILES ?= |
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GITIGNOREFILES += $(CODE_COVERAGE_OUTPUT_FILE) $(CODE_COVERAGE_OUTPUT_DIRECTORY) |
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|
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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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