Module Name:    src
Committed By:   rillig
Date:           Sat Feb  5 00:20:48 UTC 2022

Added Files:
        src/usr.bin/make: test-variants.mk
Removed Files:
        src/usr.bin/make: test-variants.sh

Log Message:
tests/make: migrate test-variants.sh from shell to make

Using a makefile for defining the test variants allows running several
test variants individually, instead of using a single filter expression.

The test variants can be configured more fine-grained.  It is possible
to exclude a few test cases per variant, which is useful for no-regex, a
compile-time switch for excluding the variable modifier ':C'.

Fix the definitions for the C90 tests.  Previously they didn't override
the compiler option '-Wsystem-headers', thereby complaining about usage
of 'long long'.


To generate a diff of this commit:
cvs rdiff -u -r0 -r1.1 src/usr.bin/make/test-variants.mk
cvs rdiff -u -r1.15 -r0 src/usr.bin/make/test-variants.sh

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.

Added files:

Index: src/usr.bin/make/test-variants.mk
diff -u /dev/null src/usr.bin/make/test-variants.mk:1.1
--- /dev/null	Sat Feb  5 00:20:48 2022
+++ src/usr.bin/make/test-variants.mk	Sat Feb  5 00:20:48 2022
@@ -0,0 +1,252 @@
+# $NetBSD: test-variants.mk,v 1.1 2022/02/05 00:20:48 rillig Exp $
+#
+# Build several variants of make and run the tests on them.
+#
+# The output of this test suite must be inspected manually to see the
+# interesting details.  The main purpose is to list the available build
+# options.
+
+.MAIN: usage
+usage:
+	@echo 'usage: ${MAKE} -f ${MAKEFILE} list'
+	@echo '       ${MAKE} -f ${MAKEFILE} all'
+	@echo '       ${MAKE} -f ${MAKEFILE} test...'
+
+
+TESTS+=			default
+#ENV.default=		VAR=value...
+#CPPFLAGS.default=	-DMACRO -I...
+#CFLAGS.default=	-O1
+#SKIP.default=		yes
+#SKIP_TESTS.default=	varmod-subst
+
+# Try a different compiler, with slightly different warnings and error
+# messages.  Clang has a few stricter checks than GCC, concerning enums
+# and non-literal format strings.
+#
+TESTS+=			llvm
+ENV.llvm=		HAVE_LLVM="yes"
+
+TESTS+=			gcc8
+ENV.gcc8=		USE_GCC8="yes"
+
+TESTS+=			gcc9
+ENV.gcc9=		USE_GCC9="yes"
+
+# Use emalloc for memory allocation.
+TESTS+=			emalloc
+ENV.emalloc=		TOOLDIR=""
+
+# NetBSD 10 fails with:
+# filemon_dev.c:93:19: error: 'FILEMON_SET_FD' undeclared
+TESTS+=			filemon-dev
+ENV.filemon-dev=	USE_FILEMON="dev"
+SKIP.filemon-dev=	yes
+
+TESTS+=			filemon-ktrace
+ENV.filemon-ktrace=	USE_FILEMON="ktrace"
+
+TESTS+=			no-meta
+ENV.no-meta=		USE_META="no"
+SKIP_TESTS.no-meta=	depsrc-meta meta-cmd-cmp
+
+TESTS+=			cleanup
+CPPFLAGS.cleanup=	-DCLEANUP
+
+TESTS+=			debug-refcnt
+CPPFLAGS.debug-refcnt=	-DDEBUG_REFCNT
+
+TESTS+=			debug-hash
+CPPFLAGS.debug-hash=	-DDEBUG_HASH_LOOKUP
+SKIP_TESTS.debug-hash=	opt-debug-hash	# mixes regular and debug output
+
+TESTS+=			debug-meta
+CPPFLAGS.debug-meta=	-DDEBUG_META_MODE
+SKIP_TESTS.debug-meta=	depsrc-meta meta-cmd-cmp # generate extra debug output
+
+# Produces lots of debugging output.
+#
+TESTS+=			debug-src
+CPPFLAGS.debug-src=	-DDEBUG_SRC
+SKIP.debug-src=		yes
+
+# In this variant, the tests for 'export VAR=value' fail, as expected.
+#
+TESTS+=			no-gmake-export
+CPPFLAGS.no-gmake-export= -UGMAKEEXPORT
+SKIP.no-gmake-export=	yes
+
+# NetBSD 8.0 x86_64
+# In file included from arch.c:135:0:
+# /usr/include/sys/param.h:357:0: error: "MAXPATHLEN" redefined [-Werror]
+TESTS+=			maxpathlen
+CPPFLAGS.maxpathlen=	-DMAXPATHLEN=20
+SKIP.maxpathlen=	yes
+
+# In this variant, the unit tests using the modifier ':C' fail, as expected.
+#
+TESTS+=			no-regex
+CPPFLAGS.no-regex=	-DNO_REGEX
+SKIP_TESTS.no-regex=	archive cond-short deptgt-makeflags dollar export-all
+SKIP_TESTS.no-regex+=	moderrs modmatch modmisc var-eval-short
+SKIP_TESTS.no-regex+=	varmod-select-words varmod-subst varmod-subst-regex
+SKIP_TESTS.no-regex+=	varname-dot-make-pid varname-dot-make-ppid
+
+# NetBSD 8.0 x86_64 says:
+# In file included from /usr/include/sys/param.h:115:0,
+#                 from arch.c:135:
+# /usr/include/sys/syslimits.h:60:0: error: "PATH_MAX" redefined [-Werror]
+TESTS+=			path_max
+CPPFLAGS.path_max=	-DPATH_MAX=20
+SKIP.path_max=		yes
+
+# This higher optimization level may trigger additional "may be used
+# uninitialized" errors. Could be combined with other compilers as well.
+#
+TESTS+=			opt-3
+CFLAGS.opt-3=		-O3
+
+# When optimizing for small code size, GCC gets confused by the initialization
+# status of local variables in some cases.
+TESTS+=			opt-size
+CFLAGS.opt-size=	-Os
+
+TESTS+=			opt-none
+CFLAGS.opt-none=	-O0 -ggdb
+
+# Ensure that every inline function is declared as MAKE_ATTR_UNUSED.
+TESTS+=			no-inline
+CPPFLAGS.no-inline=	-Dinline=
+
+# Is expected to fail with "<stdbool.h> is included in pre-C99 mode" since
+# main.c includes <sys/sysctl.h>, which includes <stdbool.h> even in pre-C99
+# mode.  This would lead to inconsistent definitions of bool and thus
+# differently sized struct CmdOpts and others.
+TESTS+=			c90-plain
+ENV.c90-plain=		USE_FILEMON=no	# filemon uses designated initializers
+CFLAGS.c90-plain=	-std=c90 -ansi -pedantic -Wno-system-headers
+SKIP.c90-plain=		yes
+
+# The make source code is _intended_ to be compatible with C90, it uses some
+# C99 features though (snprintf).  The workaround with USE_C99_BOOLEAN is
+# necessary on NetBSD 9.99 since main.c includes <sys/sysctl.h>, which
+# includes <stdbool.h> even in pre-C99 mode.
+TESTS+=			c90-stdbool
+ENV.c90-stdbool=	USE_FILEMON=no	# filemon uses designated initializers
+CFLAGS.c90-stdbool=	-std=c90 -ansi -pedantic -Wno-system-headers
+CPPFLAGS.c90-stdbool=	-DUSE_C99_BOOLEAN
+
+# Ensure that there are only side-effect-free conditions in the assert
+# macro, or at least none that affect the outcome of the tests.
+#
+TESTS+=			no-assert
+CPPFLAGS.no-assert=	-DNDEBUG
+
+# Only in native mode, make dares to use a shortcut in Compat_RunCommand
+# that circumvents the shell and instead calls execvp directly.
+# Another effect is that the shell is run with -q, which prevents the
+# -x and -v flags from echoing the commands from profile files.
+TESTS+=			non-native
+CPPFLAGS.non-native=	-UMAKE_NATIVE
+CPPFLAGS.non-native+=	-DHAVE_STRERROR -DHAVE_SETENV -DHAVE_VSNPRINTF
+
+# Running the code coverage using gcov took a long time on NetBSD < 10, due to
+# https://gnats.netbsd.org/55808.
+#
+# Combining USE_COVERAGE with HAVE_LLVM does not work since ld fails to link
+# with the coverage library.
+#
+# Turning the optimization off is required because gcov does not work on the
+# source code level but on the intermediate code after optimization:
+# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96622
+#
+TESTS+=			coverage
+ENV.coverage=		USE_COVERAGE="yes"
+CFLAGS.coverage=	-O0 -ggdb
+
+TESTS+=			fort
+ENV.fort=		USE_FORT="yes"
+
+# Ensure that the tests can be specified either as relative filenames or
+# as absolute filenames.
+TESTS+=			abs
+ENV.abs=		USE_ABSOLUTE_TESTNAMES="yes"
+
+# This test is the result of reading through the GCC "Warning Options"
+# documentation, noting down everything that sounded interesting.
+#
+TESTS+=			gcc10-warn
+ENV.gcc10-warn=		USE_GCC10=yes
+CFLAGS.gcc10-warn=	-Wmisleading-indentation
+CFLAGS.gcc10-warn+=	-Wmissing-attributes
+CFLAGS.gcc10-warn+=	-Wmissing-braces
+CFLAGS.gcc10-warn+=	-Wextra
+CFLAGS.gcc10-warn+=	-Wnonnull
+CFLAGS.gcc10-warn+=	-Wnonnull-compare
+CFLAGS.gcc10-warn+=	-Wnull-dereference
+CFLAGS.gcc10-warn+=	-Wimplicit
+CFLAGS.gcc10-warn+=	-Wimplicit-fallthrough=4
+CFLAGS.gcc10-warn+=	-Wignored-qualifiers
+CFLAGS.gcc10-warn+=	-Wunused
+CFLAGS.gcc10-warn+=	-Wunused-but-set-variable
+CFLAGS.gcc10-warn+=	-Wunused-parameter
+CFLAGS.gcc10-warn+=	-Wduplicated-branches
+CFLAGS.gcc10-warn+=	-Wduplicated-cond
+CFLAGS.gcc10-warn+=	-Wunused-macros
+CFLAGS.gcc10-warn+=	-Wcast-function-type
+CFLAGS.gcc10-warn+=	-Wconversion
+CFLAGS.gcc10-warn+=	-Wenum-compare
+CFLAGS.gcc10-warn+=	-Wmissing-field-initializers
+CFLAGS.gcc10-warn+=	-Wredundant-decls
+CFLAGS.gcc10-warn+=	-Wno-error=conversion
+CFLAGS.gcc10-warn+=	-Wno-error=sign-conversion
+CFLAGS.gcc10-warn+=	-Wno-error=unused-macros
+CFLAGS.gcc10-warn+=	-Wno-error=unused-parameter
+CFLAGS.gcc10-warn+=	-Wno-error=duplicated-branches
+
+.for shell in /usr/pkg/bin/bash /usr/pkg/bin/dash
+.  if exists(${shell})
+TESTS+=		${shell:T}
+CPPFLAGS.${shell:T}=	-DDEFSHELL_CUSTOM="\"${shell}\""
+.  endif
+.endfor
+
+
+.MAKEFLAGS: -k
+.MAKE.DEPENDFILE=	nonexistent
+
+.PHONY: usage list all ${TESTS}
+
+all: ${TESTS:${TESTS:@t@${SKIP.$t:Myes:%=N$t}@:ts:}}
+
+SLOW_TESTS=	dotwait sh-flags
+
+.for test in ${TESTS}
+_ENV.${test}=	PATH="$$PATH"
+_ENV.${test}+=	USETOOLS="no"
+_ENV.${test}+=	MALLOC_OPTIONS="JA"		# for jemalloc 1.0.0
+_ENV.${test}+=	MALLOC_CONF="junk:true"		# for jemalloc 5.1.0
+_ENV.${test}+=	_MKMSG_COMPILE=":"
+_ENV.${test}+=	_MKMSG_CREATE=":"
+_ENV.${test}+=	_MKMSG_FORMAT=":"
+_ENV.${test}+=	_MKMSG_TEST=":"
+_ENV.${test}+=	${ENV.${test}}
+_ENV.${test}+=	USER_CPPFLAGS=${CPPFLAGS.${.TARGET}:Q}
+_ENV.${test}+=	USER_CFLAGS=${CFLAGS.${.TARGET}:Q}
+_ENV.${test}+=	BROKEN_TESTS=${${SLOW_TESTS} ${SKIP_TESTS.${.TARGET}}:L:Q}
+.endfor
+
+${TESTS}: run-test
+run-test: .USE
+	@echo "===> Running ${.TARGET}"
+	@echo "env: "${ENV.${.TARGET}:U"(none)"}
+	@echo "cflags: "${CFLAGS.${.TARGET}:U(none):Q}
+	@echo "cppflags: "${CPPFLAGS.${.TARGET}:U(none):Q}
+
+	@env -i ${_ENV.${.TARGET}} sh -ce "ma""ke -s cleandir"
+	@env -i ${_ENV.${.TARGET}} sh -ce "ma""ke -ks -j6 dependall"
+	@size *.o make
+	@env -i ${_ENV.${.TARGET}} sh -ce "ma""ke -s test"
+
+list:
+	@printf '%s%s\n' ${TESTS:O:@t@$t '${SKIP.$t:Myes:%= (skipped)}'@}

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