Rules

   1 # Copyright (C) 1991-2017 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 # <http://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 # Special test of all the installed headers in this directory.
  86 tests-special += $(objpfx)check-installed-headers-c.out
  87 libof-check-installed-headers-c := nonlib
  88 $(objpfx)check-installed-headers-c.out: \
  89     $(..)scripts/check-installed-headers.sh $(headers)
  90         $(SHELL) $(..)scripts/check-installed-headers.sh c \
  91           "$(CC) $(filter-out -std=%,$(CFLAGS)) -D_ISOMAC $(+includes)" \
  92           $(headers) > $@; \
  93         $(evaluate-test)
  94
  95 ifneq "$(CXX)" ""
  96 tests-special += $(objpfx)check-installed-headers-cxx.out
  97 libof-check-installed-headers-cxx := nonlib
  98 $(objpfx)check-installed-headers-cxx.out: \
  99     $(..)scripts/check-installed-headers.sh $(headers)
 100         $(SHELL) $(..)scripts/check-installed-headers.sh c++ \
 101           "$(CXX) $(filter-out -std=%,$(CXXFLAGS)) -D_ISOMAC $(+includes)" \
 102           $(headers) > $@; \
 103         $(evaluate-test)
 104 endif
 105 endif
 106 \f
 107 # This makes all the auxiliary and test programs.
 108
 109 .PHONY: others tests bench bench-build
 110
 111 # Test programs for the pretty printers.
 112 tests-printers-programs := $(addprefix $(objpfx),$(tests-printers))
 113
 114 # .out files with the output of running the pretty printer tests.
 115 tests-printers-out := $(patsubst %,$(objpfx)%.out,$(tests-printers))
 116
 117 ifndef PYTHON
 118 # Mark tests-printers tests as unsupported if we don't have PYTHON.
 119 tests-unsupported += $(tests-printers)
 120 endif
 121
 122 ifeq ($(build-programs),yes)
 123 others: $(addprefix $(objpfx),$(others) $(sysdep-others) $(extra-objs))
 124 else
 125 others: $(addprefix $(objpfx),$(extra-objs))
 126 endif
 127
 128 # Generate constant files for Python pretty printers if required.
 129 others: $(py-const)
 130
 131 ifeq ($(run-built-tests),no)
 132 tests: $(addprefix $(objpfx),$(filter-out $(tests-unsupported),$(tests)) \
 133                              $(test-srcs)) $(tests-special) \
 134                              $(tests-printers-programs)
 135 xtests: tests $(xtests-special)
 136 else
 137 tests: $(tests:%=$(objpfx)%.out) $(tests-special) $(tests-printers-out)
 138 xtests: tests $(xtests:%=$(objpfx)%.out) $(xtests-special)
 139 endif
 140
 141 tests-special-notdir = $(patsubst $(objpfx)%, %, $(tests-special))
 142 xtests-special-notdir = $(patsubst $(objpfx)%, %, $(xtests-special))
 143 ifeq ($(run-built-tests),no)
 144 tests-expected =
 145 else
 146 tests-expected = $(tests) $(tests-printers)
 147 endif
 148 tests:
 149         $(..)scripts/merge-test-results.sh -s $(objpfx) $(subdir) \
 150           $(sort $(tests-expected) $(tests-special-notdir:.out=)) \
 151           > $(objpfx)subdir-tests.sum
 152 xtests:
 153         $(..)scripts/merge-test-results.sh -s $(objpfx) $(subdir) \
 154           $(sort $(xtests) $(xtests-special-notdir:.out=)) \
 155           > $(objpfx)subdir-xtests.sum
 156
 157 ifeq ($(build-programs),yes)
 158 binaries-all-notests = $(others) $(sysdep-others)
 159 binaries-all-tests = $(tests) $(xtests) $(test-srcs)
 160 binaries-all = $(binaries-all-notests) $(binaries-all-tests)
 161 binaries-static-notests = $(others-static)
 162 binaries-static-tests = $(tests-static) $(xtests-static)
 163 binaries-static = $(binaries-static-notests) $(binaries-static-tests)
 164 ifeq (yesyes,$(have-fpie)$(build-shared))
 165 binaries-pie-tests = $(tests-pie) $(xtests-pie)
 166 binaries-pie-notests = $(others-pie)
 167 else
 168 binaries-pie-tests =
 169 binaries-pie-notests =
 170 endif
 171 else
 172 binaries-all-notests =
 173 binaries-all-tests = $(tests) $(xtests) $(test-srcs)
 174 binaries-all = $(binaries-all-tests)
 175 binaries-static-notests =
 176 binaries-static-tests =
 177 binaries-static =
 178 binaries-pie-tests =
 179 binaries-pie-notests =
 180 endif
 181
 182 binaries-pie = $(binaries-pie-tests) $(binaries-pie-notests)
 183 binaries-shared-tests = $(filter-out $(binaries-pie) $(binaries-static), \
 184                                      $(binaries-all-tests))
 185 binaries-shared-notests = $(filter-out $(binaries-pie) $(binaries-static), \
 186                                        $(binaries-all-notests))
 187
 188 ifneq "$(strip $(binaries-shared-notests))" ""
 189 $(addprefix $(objpfx),$(binaries-shared-notests)): %: %.o \
 190   $(sort $(filter $(common-objpfx)lib%,$(link-libc))) \
 191   $(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit)
 192         $(+link)
 193 endif
 194
 195 ifneq "$(strip $(binaries-shared-tests))" ""
 196 $(addprefix $(objpfx),$(binaries-shared-tests)): %: %.o \
 197   $(link-extra-libs-tests) \
 198   $(sort $(filter $(common-objpfx)lib%,$(link-libc))) \
 199   $(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit)
 200         $(+link-tests)
 201 endif
 202
 203 ifneq "$(strip $(binaries-pie-tests))" ""
 204 $(addprefix $(objpfx),$(binaries-pie-tests)): %: %.o \
 205   $(link-extra-libs-tests) \
 206   $(sort $(filter $(common-objpfx)lib%,$(link-libc))) \
 207   $(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit)
 208         $(+link-pie-tests)
 209 endif
 210
 211 ifneq "$(strip $(binaries-pie-notests))" ""
 212 $(addprefix $(objpfx),$(binaries-pie-notests)): %: %.o \
 213   $(sort $(filter $(common-objpfx)lib%,$(link-libc))) \
 214   $(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit)
 215         $(+link-pie)
 216 endif
 217
 218 ifneq "$(strip $(binaries-static-notests))" ""
 219 $(addprefix $(objpfx),$(binaries-static-notests)): %: %.o \
 220   $(sort $(filter $(common-objpfx)lib%,$(link-libc-static))) \
 221   $(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit)
 222         $(+link-static)
 223 endif
 224
 225 ifneq "$(strip $(binaries-static-tests))" ""
 226 $(addprefix $(objpfx),$(binaries-static-tests)): %: %.o \
 227   $(link-extra-libs-tests) \
 228   $(sort $(filter $(common-objpfx)lib%,$(link-libc-static-tests))) \
 229   $(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit)
 230         $(+link-static-tests)
 231 endif
 232
 233 ifneq "$(strip $(tests) $(xtests) $(test-srcs))" ""
 234 # These are the implicit rules for making test outputs
 235 # from the test programs and whatever input files are present.
 236
 237 define make-test-out
 238 $(if $($*-ENV-only),$(test-wrapper-env-only) $($*-ENV-only),\
 239      $(test-wrapper-env) $(run-program-env) $($*-ENV)) \
 240 $(host-test-program-cmd) $($*-ARGS)
 241 endef
 242 $(objpfx)%.out: %.input $(objpfx)%
 243         $(make-test-out) > $@ < $(word 1,$^); \
 244         $(evaluate-test)
 245 $(objpfx)%.out: /dev/null $(objpfx)%    # Make it 2nd arg for canned sequence.
 246         $(make-test-out) > $@; \
 247         $(evaluate-test)
 248
 249 # tests-unsupported lists tests that we will not try to build at all in
 250 # this configuration.  Note this runs every time because it does not
 251 # actually create its target.  The dependency on Makefile is meant to
 252 # ensure that it runs after a Makefile change to add a test to the list
 253 # when it previously ran and produced a .out file (probably for a failure).
 254 ifneq "$(strip $(tests-unsupported))" ""
 255 $(tests-unsupported:%=$(objpfx)%.out): $(objpfx)%.out: Makefile
 256         @rm -f $@
 257         $(..)scripts/evaluate-test.sh $(patsubst $(common-objpfx)%.out,%,$@) \
 258                                       77 false false > $(@:.out=.test-result)
 259 endif
 260
 261 endif   # tests
 262
 263 ifdef PYTHON
 264 ifneq "$(strip $(tests-printers))" ""
 265
 266 # Static pattern rule for building the test programs for the pretty printers.
 267 $(tests-printers-programs): %: %.o $(tests-printers-libs) \
 268   $(sort $(filter $(common-objpfx)lib%,$(link-libc-static-tests))) \
 269   $(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit)
 270         $(+link-printers-tests)
 271
 272 # Add the paths to the generated constants file and test_common_printers.py
 273 # to PYTHONPATH so the test scripts can find them.
 274 py-env := PYTHONPATH=$(py-const-dir):$(..)scripts:$${PYTHONPATH}
 275
 276 # Static pattern rule that matches the test-* targets to their .c and .py
 277 # prerequisites.  It'll run the corresponding test script for each test program
 278 # we compiled and place its output in the corresponding .out file.
 279 # The pretty printer files and test_common_printers.py must be present for all.
 280 $(tests-printers-out): $(objpfx)%.out: $(objpfx)% %.py %.c $(pretty-printers) \
 281                        $(..)scripts/test_printers_common.py
 282         $(test-wrapper-env) $(py-env) \
 283             $(PYTHON) $*.py $*.c $(objpfx)$* $(pretty-printers) > $@; \
 284         $(evaluate-test)
 285 endif
 286 endif
 287
 288 \f
 289 .PHONY: distclean realclean subdir_distclean subdir_realclean \
 290         subdir_clean subdir_mostlyclean subdir_testclean
 291 subdir_mostlyclean: mostlyclean
 292 subdir_clean: clean
 293 subdir_distclean: distclean
 294 subdir_realclean: realclean
 295 subdir_testclean: do-tests-clean
 296 realclean: distclean
 297 distclean: clean
 298
 299 # We want to install everything except the library itself, but update all
 300 # our portions of the library because the parent make will install it later
 301 # (likewise the stubs file).
 302 .PHONY: subdir_install
 303 subdir_install: install-no-libc.a lib-noranlib stubs
 304
 305 .PHONY: subdir_objs subdir_stubs
 306 subdir_objs: objs
 307 subdir_stubs: stubs
 308
 309 # Target required by the Hurd to ensure that all the MiG-generated
 310 # headers are in place before building a subdirectory.
 311 .PHONY: before-compile
 312 before-compile: $(before-compile)
 313
 314 $(common-objpfx)dummy.o: $(common-objpfx)dummy.c $(before-compile);
 315         $(compile-command.c)
 316
 317 # Local Variables:
 318 # mode: makefile
 319 # End: