Rules

   1 # Copyright (C) 1991-2020 Free Software Foundation, Inc.
   2 # This file is part of the GNU C Library.
   3
   4 # The GNU C Library is free software; you can redistribute it and/or
   5 # modify it under the terms of the GNU Lesser General Public
   6 # License as published by the Free Software Foundation; either
   7 # version 2.1 of the License, or (at your option) any later version.
   8
   9 # The GNU C Library is distributed in the hope that it will be useful,
  10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12 # Lesser General Public License for more details.
  13
  14 # You should have received a copy of the GNU Lesser General Public
  15 # License along with the GNU C Library; if not, see
  16 # <https://www.gnu.org/licenses/>.
  17
  18 #
  19 #       Rules for making a subdirectory in the GNU C library.
  20 #       Each subdirectory Makefile defines some variables and includes this.
  21 #
  22 ifneq (,)
  23 This makefile requires GNU Make.
  24 endif
  25
  26 all: # Don't let the default goal come from Makeconfig.
  27
  28 include $(firstword $(..) ../)Makeconfig
  29
  30 ifndef  subdir
  31 Each subdirectory makefile must define the `subdir' variable.
  32 endif
  33 # This ` unconfuses emacs.
  34 # This is benign and useless in GNU make before 3.63.
  35 export subdir := $(subdir)
  36 \f
  37 # This is the default target; it makes the library and auxiliary programs.
  38 .PHONY: all
  39 all: objs lib others
  40
  41 ifeq ($(build-programs),yes)
  42 others: $(addprefix $(objpfx),$(extra-objs) \
  43                               $(install-lib) \
  44                               $(install-bin) $(install-bin-script) \
  45                               $(install-rootsbin) $(install-sbin))
  46 else
  47 others: $(addprefix $(objpfx),$(extra-objs) \
  48                               $(install-lib))
  49 endif
  50
  51 ifneq   "$(findstring env,$(origin headers))" ""
  52 headers :=
  53 endif
  54
  55 ifneq   "$(findstring env,$(origin generated))" ""
  56 generated :=
  57 endif
  58
  59 ifneq   "$(findstring env,$(origin common-generated))" ""
  60 common-generated :=
  61 endif
  62
  63 # See below.  This must be set before Makerules processes it.
  64 before-compile += $(common-objpfx)bits/stdio_lim.h
  65
  66 include $(..)Makerules
  67
  68 .PHONY: subdir_lib
  69 subdir_lib: lib-noranlib
  70
  71 # Some subdirs need to install a dummy library.
  72 # They can use "$(objpfx)libfnord.a: $(dep-dummy-lib); $(make-dummy-lib)".
  73 dep-dummy-lib = $(common-objpfx)dummy.o
  74 define make-dummy-lib
  75 $(AR) cr$(verbose) $@ $<
  76 endef
  77
  78 $(common-objpfx)dummy.c:
  79         rm -f $@
  80         (echo 'extern void __dummy__ (void);'; \
  81          echo 'void __dummy__ (void) { }') > $@
  82 common-generated += dummy.o dummy.c
  83
  84 ifneq "$(headers)" ""
  85 # Test that all of the headers installed by this directory can be compiled
  86 # in isolation.
  87 tests-special += $(objpfx)check-installed-headers-c.out
  88 libof-check-installed-headers-c := testsuite
  89 $(objpfx)check-installed-headers-c.out: \
  90     $(..)scripts/check-installed-headers.sh $(headers)
  91         $(SHELL) $(..)scripts/check-installed-headers.sh c \
  92           "$(CC) $(filter-out -std=%,$(CFLAGS)) -D_ISOMAC $(+includes)" \
  93           $(headers) > $@; \
  94         $(evaluate-test)
  95
  96 ifneq "$(CXX)" ""
  97 # If a C++ compiler is available, also test that they can be compiled
  98 # in isolation as C++.
  99 tests-special += $(objpfx)check-installed-headers-cxx.out
 100 libof-check-installed-headers-cxx := testsuite
 101 $(objpfx)check-installed-headers-cxx.out: \
 102     $(..)scripts/check-installed-headers.sh $(headers)
 103         $(SHELL) $(..)scripts/check-installed-headers.sh c++ \
 104           "$(CXX) $(filter-out -std=%,$(CXXFLAGS)) -D_ISOMAC $(+includes)" \
 105           $(headers) > $@; \
 106         $(evaluate-test)
 107 endif # $(CXX)
 108
 109 # Test that a wrapper header exists in include/ for each non-sysdeps header.
 110 # This script does not need $(py-env).
 111 tests-special += $(objpfx)check-wrapper-headers.out
 112 $(objpfx)check-wrapper-headers.out: \
 113   $(..)scripts/check-wrapper-headers.py $(headers)
 114         $(PYTHON) $< --root=$(..) --subdir=$(subdir) $(headers) > $@; \
 115           $(evaluate-test)
 116
 117 # Test that none of the headers installed by this directory use certain
 118 # obsolete constructs (e.g. legacy BSD typedefs superseded by stdint.h).
 119 # This script does not need $(py-env).
 120 tests-special += $(objpfx)check-obsolete-constructs.out
 121 libof-check-obsolete-constructs := testsuite
 122 $(objpfx)check-obsolete-constructs.out: \
 123     $(..)scripts/check-obsolete-constructs.py $(headers)
 124         $(PYTHON) $^ > $@ 2>&1; \
 125         $(evaluate-test)
 126
 127 endif # $(headers)
 128 \f
 129 # This makes all the auxiliary and test programs.
 130
 131 .PHONY: others tests bench bench-build
 132
 133 # Test programs for the pretty printers.
 134 tests-printers-programs := $(addprefix $(objpfx),$(tests-printers))
 135
 136 # .out files with the output of running the pretty printer tests.
 137 tests-printers-out := $(patsubst %,$(objpfx)%.out,$(tests-printers))
 138
 139 ifeq ($(build-programs),yes)
 140 others: $(addprefix $(objpfx),$(others) $(sysdep-others) $(extra-objs))
 141 else
 142 others: $(addprefix $(objpfx),$(extra-objs))
 143 endif
 144
 145 # Generate constant files for Python pretty printers if required.
 146 others: $(py-const)
 147
 148 ifeq ($(run-built-tests),no)
 149 tests: $(addprefix $(objpfx),$(filter-out $(tests-unsupported), \
 150                                           $(tests) $(tests-internal) \
 151                                           $(tests-container)) \
 152                              $(test-srcs)) $(tests-special) \
 153                              $(tests-printers-programs)
 154 xtests: tests $(xtests-special)
 155 else
 156 tests: $(tests:%=$(objpfx)%.out) $(tests-internal:%=$(objpfx)%.out) \
 157        $(tests-container:%=$(objpfx)%.out) \
 158        $(tests-mcheck:%=$(objpfx)%-mcheck.out) \
 159        $(tests-special) $(tests-printers-out)
 160 xtests: tests $(xtests:%=$(objpfx)%.out) $(xtests-special)
 161 endif
 162
 163 tests-special-notdir = $(patsubst $(objpfx)%, %, $(tests-special))
 164 xtests-special-notdir = $(patsubst $(objpfx)%, %, $(xtests-special))
 165 ifeq ($(run-built-tests),no)
 166 tests-expected =
 167 else
 168 tests-expected = $(tests) $(tests-internal) $(tests-printers) \
 169         $(tests-container) $(tests-mcheck:%=%-mcheck)
 170 endif
 171 tests:
 172         $(..)scripts/merge-test-results.sh -s $(objpfx) $(subdir) \
 173           $(sort $(tests-expected) $(tests-special-notdir:.out=)) \
 174           > $(objpfx)subdir-tests.sum
 175 xtests:
 176         $(..)scripts/merge-test-results.sh -s $(objpfx) $(subdir) \
 177           $(sort $(xtests) $(xtests-special-notdir:.out=)) \
 178           > $(objpfx)subdir-xtests.sum
 179
 180 ifeq ($(build-programs),yes)
 181 binaries-all-notests = $(others) $(sysdep-others)
 182 binaries-all-tests = $(tests) $(tests-internal) $(xtests) $(test-srcs) \
 183                      $(tests-container)
 184 binaries-all = $(binaries-all-notests) $(binaries-all-tests)
 185 binaries-static-notests = $(others-static)
 186 binaries-static-tests = $(tests-static) $(xtests-static)
 187 binaries-static = $(binaries-static-notests) $(binaries-static-tests)
 188 ifeq (yesyes,$(have-fpie)$(build-shared))
 189 binaries-pie-tests = $(tests-pie) $(xtests-pie)
 190 binaries-pie-notests = $(others-pie)
 191 else
 192 binaries-pie-tests =
 193 binaries-pie-notests =
 194 endif
 195 binaries-mcheck-tests = $(tests-mcheck:%=%-mcheck)
 196 else
 197 binaries-all-notests =
 198 binaries-all-tests = $(tests) $(tests-internal) $(xtests) $(test-srcs)
 199 binaries-all = $(binaries-all-tests)
 200 binaries-static-notests =
 201 binaries-static-tests =
 202 binaries-static =
 203 binaries-pie-tests =
 204 binaries-pie-notests =
 205 binaries-mcheck-tests =
 206 endif
 207
 208 binaries-pie = $(binaries-pie-tests) $(binaries-pie-notests)
 209 binaries-shared-tests = $(filter-out $(binaries-pie) $(binaries-static), \
 210                                      $(binaries-all-tests))
 211 binaries-shared-notests = $(filter-out $(binaries-pie) $(binaries-static), \
 212                                        $(binaries-all-notests))
 213
 214 ifneq "$(strip $(binaries-shared-notests))" ""
 215 $(addprefix $(objpfx),$(binaries-shared-notests)): %: %.o \
 216   $(sort $(filter $(common-objpfx)lib%,$(link-libc))) \
 217   $(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit)
 218         $(+link)
 219 endif
 220
 221 ifneq "$(strip $(binaries-shared-tests))" ""
 222 $(addprefix $(objpfx),$(binaries-shared-tests)): %: %.o \
 223   $(link-extra-libs-tests) \
 224   $(sort $(filter $(common-objpfx)lib%,$(link-libc))) \
 225   $(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit)
 226         $(+link-tests)
 227 endif
 228
 229 ifneq "$(strip $(binaries-mcheck-tests))" ""
 230 $(addprefix $(objpfx),$(binaries-mcheck-tests)): %-mcheck: %.o \
 231   $(link-extra-libs-tests) \
 232   $(sort $(filter $(common-objpfx)lib%,$(link-libc))) \
 233   $(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit)
 234         $(+link-tests)
 235 endif
 236
 237 ifneq "$(strip $(binaries-pie-tests))" ""
 238 $(addprefix $(objpfx),$(binaries-pie-tests)): %: %.o \
 239   $(link-extra-libs-tests) \
 240   $(sort $(filter $(common-objpfx)lib%,$(link-libc))) \
 241   $(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit)
 242         $(+link-pie-tests)
 243 endif
 244
 245 ifneq "$(strip $(binaries-pie-notests))" ""
 246 $(addprefix $(objpfx),$(binaries-pie-notests)): %: %.o \
 247   $(sort $(filter $(common-objpfx)lib%,$(link-libc))) \
 248   $(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit)
 249         $(+link-pie)
 250 endif
 251
 252 ifneq "$(strip $(binaries-static-notests))" ""
 253 $(addprefix $(objpfx),$(binaries-static-notests)): %: %.o \
 254   $(sort $(filter $(common-objpfx)lib%,$(link-libc-static))) \
 255   $(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit)
 256         $(+link-static)
 257 endif
 258
 259 ifneq "$(strip $(binaries-static-tests))" ""
 260 $(addprefix $(objpfx),$(binaries-static-tests)): %: %.o \
 261   $(link-extra-libs-tests) \
 262   $(sort $(filter $(common-objpfx)lib%,$(link-libc-static-tests))) \
 263   $(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit)
 264         $(+link-static-tests)
 265 endif
 266
 267 # All mcheck tests will be run with MALLOC_CHECK_=3
 268 define mcheck-ENVS
 269 $(1)-mcheck-ENV = MALLOC_CHECK_=3
 270 endef
 271 $(foreach t,$(tests-mcheck),$(eval $(call mcheck-ENVS,$(t))))
 272
 273 ifneq "$(strip $(tests) $(tests-internal) $(xtests) $(test-srcs))" ""
 274 # These are the implicit rules for making test outputs
 275 # from the test programs and whatever input files are present.
 276
 277 define make-test-out
 278 $(if $($*-ENV-only),$(test-wrapper-env-only) $($*-ENV-only),\
 279      $(test-wrapper-env) $(run-program-env) $($*-ENV)) \
 280 $(host-test-program-cmd) $($*-ARGS)
 281 endef
 282 $(objpfx)%.out: %.input $(objpfx)%
 283         $(make-test-out) > $@ < $(word 1,$^); \
 284         $(evaluate-test)
 285 $(objpfx)%.out: /dev/null $(objpfx)%    # Make it 2nd arg for canned sequence.
 286         $(make-test-out) > $@; \
 287         $(evaluate-test)
 288
 289
 290 # Any tests that require an isolated container (filesystem, network
 291 # and pid namespaces) in which to run, should be added to
 292 # tests-container.
 293 $(tests-container:%=$(objpfx)%.out): $(objpfx)%.out : $(if $(wildcard $(objpfx)%.files),$(objpfx)%.files,/dev/null) $(objpfx)%
 294         $(test-wrapper-env) $(run-program-env) $(run-via-rtld-prefix) \
 295           $(common-objpfx)support/test-container env $(run-program-env) $($*-ENV) \
 296           $(host-test-program-cmd) $($*-ARGS) > $@; \
 297         $(evaluate-test)
 298
 299
 300 # tests-unsupported lists tests that we will not try to build at all in
 301 # this configuration.  Note this runs every time because it does not
 302 # actually create its target.  The dependency on Makefile is meant to
 303 # ensure that it runs after a Makefile change to add a test to the list
 304 # when it previously ran and produced a .out file (probably for a failure).
 305 ifneq "$(strip $(tests-unsupported))" ""
 306 $(tests-unsupported:%=$(objpfx)%.out): $(objpfx)%.out: Makefile
 307         @rm -f $@
 308         $(..)scripts/evaluate-test.sh $(patsubst $(common-objpfx)%.out,%,$@) \
 309                                       77 false false > $(@:.out=.test-result)
 310 endif
 311
 312 endif   # tests
 313
 314 ifneq "$(strip $(tests-printers))" ""
 315
 316 # Static pattern rule for building the test programs for the pretty printers.
 317 $(tests-printers-programs): %: %.o $(tests-printers-libs) \
 318   $(sort $(filter $(common-objpfx)lib%,$(link-libc-static-tests))) \
 319   $(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit)
 320         $(+link-printers-tests)
 321
 322 # Add the paths to the generated constants file and test_common_printers.py
 323 # to PYTHONPATH so the test scripts can find them.
 324 py-env := PYTHONPATH=$(py-const-dir):$(..)scripts:$${PYTHONPATH}
 325
 326 # Static pattern rule that matches the test-* targets to their .c and .py
 327 # prerequisites.  It'll run the corresponding test script for each test program
 328 # we compiled and place its output in the corresponding .out file.
 329 # The pretty printer files and test_common_printers.py must be present for all.
 330 $(tests-printers-out): $(objpfx)%.out: $(objpfx)% %.py %.c $(pretty-printers) \
 331                        $(..)scripts/test_printers_common.py
 332         $(test-wrapper-env) $(py-env) \
 333             $(PYTHON) $*.py $*.c $(objpfx)$* $(pretty-printers) > $@; \
 334         $(evaluate-test)
 335 endif
 336
 337 \f
 338 .PHONY: distclean realclean subdir_distclean subdir_realclean \
 339         subdir_clean subdir_mostlyclean subdir_testclean
 340 subdir_mostlyclean: mostlyclean
 341 subdir_clean: clean
 342 subdir_distclean: distclean
 343 subdir_realclean: realclean
 344 subdir_testclean: do-tests-clean
 345 realclean: distclean
 346 distclean: clean
 347
 348 # We want to install everything except the library itself, but update all
 349 # our portions of the library because the parent make will install it later
 350 # (likewise the stubs file).
 351 .PHONY: subdir_install
 352 subdir_install: install-no-libc.a lib-noranlib stubs
 353
 354 .PHONY: subdir_objs subdir_stubs
 355 subdir_objs: objs
 356 subdir_stubs: stubs
 357
 358 # Target required by the Hurd to ensure that all the MiG-generated
 359 # headers are in place before building a subdirectory.
 360 .PHONY: before-compile
 361 before-compile: $(before-compile)
 362
 363 $(common-objpfx)dummy.o: $(common-objpfx)dummy.c $(before-compile);
 364         $(compile-command.c)
 365
 366 # Local Variables:
 367 # mode: makefile
 368 # End: