Rules

   1 # Copyright (C) 1991-2024 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 include $(..)Makerules
  64
  65 .PHONY: subdir_lib
  66 subdir_lib: lib-noranlib
  67
  68 # Some subdirs need to install a dummy library.
  69 # They can use "$(objpfx)libfnord.a: $(dep-dummy-lib); $(make-dummy-lib)".
  70 dep-dummy-lib = $(common-objpfx)dummy.o
  71 define make-dummy-lib
  72 $(AR) cr$(verbose) $@ $<
  73 endef
  74
  75 $(common-objpfx)dummy.c:
  76         rm -f $@
  77         (echo 'extern void __dummy__ (void);'; \
  78          echo 'void __dummy__ (void) { }') > $@
  79 common-generated += dummy.o dummy.c
  80
  81 ifneq "$(headers)" ""
  82 # Test that all of the headers installed by this directory can be compiled
  83 # in isolation.
  84 tests-special += $(objpfx)check-installed-headers-c.out
  85 libof-check-installed-headers-c := testsuite
  86 $(objpfx)check-installed-headers-c.out: \
  87     $(..)scripts/check-installed-headers.sh $(headers)
  88         $(SHELL) $(..)scripts/check-installed-headers.sh c $(supported-fortify) \
  89           "$(CC) $(filter-out -std=%,$(CFLAGS)) -D_ISOMAC $(+includes)" \
  90           $(headers) > $@; \
  91         $(evaluate-test)
  92
  93 ifneq "$(CXX)" ""
  94 # If a C++ compiler is available, also test that they can be compiled
  95 # in isolation as C++.
  96 tests-special += $(objpfx)check-installed-headers-cxx.out
  97 libof-check-installed-headers-cxx := testsuite
  98 $(objpfx)check-installed-headers-cxx.out: \
  99     $(..)scripts/check-installed-headers.sh $(headers)
 100         $(SHELL) $(..)scripts/check-installed-headers.sh c++ $(supported-fortify) \
 101           "$(CXX) $(filter-out -std=%,$(CXXFLAGS)) -D_ISOMAC $(+includes)" \
 102           $(headers) > $@; \
 103         $(evaluate-test)
 104 endif # $(CXX)
 105
 106 # Test that a wrapper header exists in include/ for each non-sysdeps header.
 107 # This script does not need $(py-env).
 108 tests-special += $(objpfx)check-wrapper-headers.out
 109 $(objpfx)check-wrapper-headers.out: \
 110   $(..)scripts/check-wrapper-headers.py $(headers)
 111         $(PYTHON) $< --root=$(..) --subdir=$(subdir) $(headers) > $@; \
 112           $(evaluate-test)
 113
 114 # Test that none of the headers installed by this directory use certain
 115 # obsolete constructs (e.g. legacy BSD typedefs superseded by stdint.h).
 116 # This script does not need $(py-env).
 117 tests-special += $(objpfx)check-obsolete-constructs.out
 118 libof-check-obsolete-constructs := testsuite
 119 $(objpfx)check-obsolete-constructs.out: \
 120     $(..)scripts/check-obsolete-constructs.py $(headers)
 121         $(PYTHON) $^ > $@ 2>&1; \
 122         $(evaluate-test)
 123
 124 endif # $(headers)
 125 \f
 126 # This makes all the auxiliary and test programs.
 127
 128 .PHONY: others tests bench bench-build
 129
 130 # Test programs for the pretty printers.
 131 tests-printers-programs := $(addprefix $(objpfx),$(tests-printers))
 132
 133 # .out files with the output of running the pretty printer tests.
 134 tests-printers-out := $(patsubst %,$(objpfx)%.out,$(tests-printers))
 135
 136 ifeq ($(build-programs),yes)
 137 others: $(addprefix $(objpfx),$(others) $(sysdep-others) $(extra-objs))
 138 else
 139 others: $(addprefix $(objpfx),$(extra-objs))
 140 endif
 141
 142 # Generate constant files for Python pretty printers if required.
 143 others: $(py-const)
 144
 145 ifeq ($(run-built-tests),no)
 146 tests: $(addprefix $(objpfx),$(filter-out $(tests-unsupported), \
 147                                           $(tests) $(tests-internal) \
 148                                           $(tests-container)) \
 149                              $(test-srcs)) $(tests-special) \
 150                              $(tests-printers-programs)
 151 xtests: tests $(xtests-special)
 152 else
 153 tests: $(tests:%=$(objpfx)%.out) $(tests-internal:%=$(objpfx)%.out) \
 154        $(tests-container:%=$(objpfx)%.out) \
 155        $(tests-mcheck:%=$(objpfx)%-mcheck.out) \
 156        $(tests-malloc-check:%=$(objpfx)%-malloc-check.out) \
 157        $(tests-malloc-hugetlb1:%=$(objpfx)%-malloc-hugetlb1.out) \
 158        $(tests-malloc-hugetlb2:%=$(objpfx)%-malloc-hugetlb2.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-malloc-check:%=%-malloc-check) \
 170         $(tests-malloc-hugetlb1:%=%-malloc-hugetlb1) \
 171         $(tests-malloc-hugetlb2:%=%-malloc-hugetlb2) \
 172         $(tests-mcheck:%=%-mcheck)
 173 endif
 174 tests:
 175         $(..)scripts/merge-test-results.sh -s $(objpfx) $(subdir) \
 176           $(sort $(tests-expected) $(tests-special-notdir:.out=)) \
 177           > $(objpfx)subdir-tests.sum
 178 xtests:
 179         $(..)scripts/merge-test-results.sh -s $(objpfx) $(subdir) \
 180           $(sort $(xtests) $(xtests-special-notdir:.out=)) \
 181           > $(objpfx)subdir-xtests.sum
 182
 183 ifeq ($(build-programs),yes)
 184 binaries-all-notests = $(others) $(sysdep-others)
 185 binaries-all-tests = $(tests) $(tests-internal) $(xtests) $(test-srcs) \
 186                      $(tests-container)
 187 binaries-all = $(binaries-all-notests) $(binaries-all-tests)
 188 binaries-static-notests = $(others-static)
 189 binaries-static-tests = $(tests-static) $(xtests-static)
 190 binaries-static = $(binaries-static-notests) $(binaries-static-tests)
 191 ifeq (yesyes,$(have-fpie)$(build-shared))
 192 binaries-pie-tests = $(tests-pie) $(xtests-pie)
 193 binaries-pie-notests = $(others-pie)
 194 else
 195 binaries-pie-tests =
 196 binaries-pie-notests =
 197 endif
 198 binaries-mcheck-tests = $(tests-mcheck:%=%-mcheck)
 199 binaries-malloc-check-tests = $(tests-malloc-check:%=%-malloc-check)
 200 binaries-malloc-hugetlb1-tests = $(tests-malloc-hugetlb1:%=%-malloc-hugetlb1)
 201 binaries-malloc-hugetlb2-tests = $(tests-malloc-hugetlb2:%=%-malloc-hugetlb2)
 202 else
 203 binaries-all-notests =
 204 binaries-all-tests = $(tests) $(tests-internal) $(xtests) $(test-srcs)
 205 binaries-all = $(binaries-all-tests)
 206 binaries-static-notests =
 207 binaries-static-tests =
 208 binaries-static =
 209 binaries-pie-tests =
 210 binaries-pie-notests =
 211 binaries-mcheck-tests =
 212 binaries-malloc-check-tests =
 213 binaries-malloc-hugetlb1-tests =
 214 binaries-malloc-hugetlb2-tests =
 215 endif
 216
 217 binaries-pie = $(binaries-pie-tests) $(binaries-pie-notests)
 218 binaries-shared-tests = $(filter-out $(binaries-pie) $(binaries-static), \
 219                                      $(binaries-all-tests))
 220 binaries-shared-notests = $(filter-out $(binaries-pie) $(binaries-static), \
 221                                        $(binaries-all-notests))
 222
 223 ifneq "$(strip $(binaries-shared-notests))" ""
 224 $(addprefix $(objpfx),$(binaries-shared-notests)): %: %.o \
 225   $(sort $(filter $(common-objpfx)lib%,$(link-libc))) \
 226   $(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit)
 227         $(+link)
 228 endif
 229
 230 ifneq "$(strip $(binaries-shared-tests))" ""
 231 $(addprefix $(objpfx),$(binaries-shared-tests)): %: %.o \
 232   $(link-extra-libs-tests) \
 233   $(sort $(filter $(common-objpfx)lib%,$(link-libc))) \
 234   $(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit)
 235         $(+link-tests)
 236 endif
 237
 238 ifneq "$(strip $(binaries-mcheck-tests))" ""
 239 $(addprefix $(objpfx),$(binaries-mcheck-tests)): %-mcheck: %.o \
 240   $(link-extra-libs-tests) \
 241   $(sort $(filter $(common-objpfx)lib%,$(link-libc))) \
 242   $(common-objpfx)malloc/libmcheck.a \
 243   $(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit)
 244         $(+link-tests)
 245 endif
 246
 247 ifneq "$(strip $(binaries-malloc-check-tests))" ""
 248 $(addprefix $(objpfx),$(binaries-malloc-check-tests)): %-malloc-check: %.o \
 249   $(link-extra-libs-tests) \
 250   $(sort $(filter $(common-objpfx)lib%,$(link-libc))) \
 251   $(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit)
 252         $(+link-tests)
 253 endif
 254
 255 ifneq "$(strip $(binaries-malloc-hugetlb1-tests))" ""
 256 $(addprefix $(objpfx),$(binaries-malloc-hugetlb1-tests)): %-malloc-hugetlb1: %.o \
 257   $(link-extra-libs-tests) \
 258   $(sort $(filter $(common-objpfx)lib%,$(link-libc))) \
 259   $(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit)
 260         $(+link-tests)
 261 endif
 262
 263 ifneq "$(strip $(binaries-malloc-hugetlb2-tests))" ""
 264 $(addprefix $(objpfx),$(binaries-malloc-hugetlb2-tests)): %-malloc-hugetlb2: %.o \
 265   $(link-extra-libs-tests) \
 266   $(sort $(filter $(common-objpfx)lib%,$(link-libc))) \
 267   $(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit)
 268         $(+link-tests)
 269 endif
 270
 271 ifneq "$(strip $(binaries-pie-tests))" ""
 272 $(addprefix $(objpfx),$(binaries-pie-tests)): %: %.o \
 273   $(link-extra-libs-tests) \
 274   $(sort $(filter $(common-objpfx)lib%,$(link-libc))) \
 275   $(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit)
 276         $(+link-pie-tests)
 277 endif
 278
 279 ifneq "$(strip $(binaries-pie-notests))" ""
 280 $(addprefix $(objpfx),$(binaries-pie-notests)): %: %.o \
 281   $(sort $(filter $(common-objpfx)lib%,$(link-libc))) \
 282   $(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit)
 283         $(+link-pie)
 284 endif
 285
 286 ifneq "$(strip $(binaries-static-notests))" ""
 287 $(addprefix $(objpfx),$(binaries-static-notests)): %: %.o \
 288   $(sort $(filter $(common-objpfx)lib%,$(link-libc-static))) \
 289   $(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit)
 290         $(+link-static)
 291 endif
 292
 293 ifneq "$(strip $(binaries-static-tests))" ""
 294 $(addprefix $(objpfx),$(binaries-static-tests)): %: %.o \
 295   $(link-extra-libs-tests) \
 296   $(sort $(filter $(common-objpfx)lib%,$(link-libc-static-tests))) \
 297   $(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit)
 298         $(+link-static-tests)
 299 endif
 300
 301 # All malloc-check tests will be run with MALLOC_CHECK_=3
 302 define malloc-check-ENVS
 303 $(1)-malloc-check-ENV = MALLOC_CHECK_=3 \
 304                         LD_PRELOAD=$(common-objpfx)/malloc/libc_malloc_debug.so
 305 endef
 306 $(foreach t,$(tests-malloc-check),$(eval $(call malloc-check-ENVS,$(t))))
 307
 308 # All malloc-hugetlb1 tests will be run with GLIBC_TUNABLES=glibc.malloc.hugetlb=1
 309 define malloc-hugetlb1-ENVS
 310 $(1)-malloc-hugetlb1-ENV += GLIBC_TUNABLES=glibc.malloc.hugetlb=1
 311 endef
 312 $(foreach t,$(tests-malloc-hugetlb1),$(eval $(call malloc-hugetlb1-ENVS,$(t))))
 313
 314 # All malloc-hugetlb2 tests will be run with GLIBC_TUNABLE=glibc.malloc.hugetlb=2
 315 define malloc-hugetlb2-ENVS
 316 $(1)-malloc-hugetlb2-ENV += GLIBC_TUNABLES=glibc.malloc.hugetlb=2
 317 endef
 318 $(foreach t,$(tests-malloc-hugetlb2),$(eval $(call malloc-hugetlb2-ENVS,$(t))))
 319
 320 # mcheck tests need the debug DSO to support -lmcheck.
 321 define mcheck-ENVS
 322 $(1)-mcheck-ENV = LD_PRELOAD=$(common-objpfx)/malloc/libc_malloc_debug.so
 323 endef
 324 $(foreach t,$(tests-mcheck),$(eval $(call mcheck-ENVS,$(t))))
 325
 326 ifneq "$(strip $(tests) $(tests-internal) $(xtests) $(test-srcs))" ""
 327 # These are the implicit rules for making test outputs
 328 # from the test programs and whatever input files are present.
 329
 330 define make-test-out
 331 $(if $($*-ENV-only),$(test-wrapper-env-only) $($*-ENV-only),\
 332      $(test-wrapper-env) $(run-program-env) $($*-ENV)) \
 333 $(host-test-program-cmd) $($*-ARGS)
 334 endef
 335 $(objpfx)%.out: %.input $(objpfx)%
 336         $(make-test-out) > $@ < $(word 1,$^); \
 337         $(evaluate-test)
 338 $(objpfx)%.out: /dev/null $(objpfx)%    # Make it 2nd arg for canned sequence.
 339         $(make-test-out) > $@; \
 340         $(evaluate-test)
 341
 342
 343 # Any tests that require an isolated container (filesystem, network
 344 # and pid namespaces) in which to run, should be added to
 345 # tests-container.
 346 $(tests-container:%=$(objpfx)%.out): $(objpfx)%.out : $(if $(wildcard $(objpfx)%.files),$(objpfx)%.files,/dev/null) $(objpfx)%
 347         $(test-wrapper-env) $(run-program-env) $(run-via-rtld-prefix) \
 348           $(common-objpfx)support/test-container env $(run-program-env) $($*-ENV) \
 349           $(host-test-program-cmd) $($*-ARGS) > $@; \
 350         $(evaluate-test)
 351
 352
 353 # tests-unsupported lists tests that we will not try to build at all in
 354 # this configuration.  Note this runs every time because it does not
 355 # actually create its target.  The dependency on Makefile is meant to
 356 # ensure that it runs after a Makefile change to add a test to the list
 357 # when it previously ran and produced a .out file (probably for a failure).
 358 ifneq "$(strip $(tests-unsupported))" ""
 359 $(tests-unsupported:%=$(objpfx)%.out): $(objpfx)%.out: Makefile
 360         @rm -f $@
 361         $(..)scripts/evaluate-test.sh $(patsubst $(common-objpfx)%.out,%,$@) \
 362                                       77 false false > $(@:.out=.test-result)
 363 endif
 364
 365 endif   # tests
 366
 367 ifneq "$(strip $(tests-printers))" ""
 368
 369 # Static pattern rule for building the test programs for the pretty printers.
 370 $(tests-printers-programs): %: %.o $(tests-printers-libs) \
 371   $(sort $(filter $(common-objpfx)lib%,$(link-libc-static-tests))) \
 372   $(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit)
 373         $(+link-printers-tests)
 374
 375 # Add the paths to the generated constants file and test_common_printers.py
 376 # to PYTHONPATH so the test scripts can find them.
 377 py-env := PYTHONPATH=$(py-const-dir):$(..)scripts:$${PYTHONPATH}
 378
 379 # Static pattern rule that matches the test-* targets to their .c and .py
 380 # prerequisites.  It'll run the corresponding test script for each test program
 381 # we compiled and place its output in the corresponding .out file.
 382 # The pretty printer files and test_common_printers.py must be present for all.
 383 $(tests-printers-out): $(objpfx)%.out: $(objpfx)% %.py %.c $(pretty-printers) \
 384                        $(..)scripts/test_printers_common.py
 385         $(test-wrapper-env) $(py-env) \
 386             $(PYTHON) $*.py $*.c $(objpfx)$* $(pretty-printers) > $@; \
 387         $(evaluate-test)
 388 endif
 389
 390 \f
 391 .PHONY: distclean realclean subdir_distclean subdir_realclean \
 392         subdir_clean subdir_mostlyclean subdir_testclean
 393 subdir_mostlyclean: mostlyclean
 394 subdir_clean: clean
 395 subdir_distclean: distclean
 396 subdir_realclean: realclean
 397 subdir_testclean: do-tests-clean
 398 realclean: distclean
 399 distclean: clean
 400
 401 # We want to install everything except the library itself, but update all
 402 # our portions of the library because the parent make will install it later
 403 # (likewise the stubs file).
 404 .PHONY: subdir_install
 405 subdir_install: install-no-libc.a lib-noranlib stubs
 406
 407 .PHONY: subdir_objs subdir_stubs
 408 subdir_objs: objs
 409 subdir_stubs: stubs
 410
 411 # Target required by the Hurd to ensure that all the MiG-generated
 412 # headers are in place before building a subdirectory.
 413 .PHONY: before-compile
 414 before-compile: $(before-compile)
 415
 416 $(common-objpfx)dummy.o: $(common-objpfx)dummy.c $(before-compile);
 417         $(compile-command.c)
 418
 419 # Local Variables:
 420 # mode: makefile
 421 # End: