Rules

   1 # Copyright (C) 1991-2016 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) { }') > $@
  82 common-generated += dummy.o dummy.c
  83 \f
  84 # This makes all the auxiliary and test programs.
  85
  86 .PHONY: others tests bench
  87
  88 ifeq ($(build-programs),yes)
  89 others: $(addprefix $(objpfx),$(others) $(sysdep-others) $(extra-objs))
  90 else
  91 others: $(addprefix $(objpfx),$(extra-objs))
  92 endif
  93 ifeq ($(run-built-tests),no)
  94 tests: $(addprefix $(objpfx),$(tests) $(test-srcs)) $(tests-special)
  95 xtests: tests $(xtests-special)
  96 else
  97 tests: $(tests:%=$(objpfx)%.out) $(tests-special)
  98 xtests: tests $(xtests:%=$(objpfx)%.out) $(xtests-special)
  99 endif
 100
 101 tests-special-notdir = $(patsubst $(objpfx)%, %, $(tests-special))
 102 xtests-special-notdir = $(patsubst $(objpfx)%, %, $(xtests-special))
 103 tests:
 104         $(..)scripts/merge-test-results.sh -s $(objpfx) $(subdir) \
 105           $(sort $(tests) $(tests-special-notdir:.out=)) \
 106           > $(objpfx)subdir-tests.sum
 107 xtests:
 108         $(..)scripts/merge-test-results.sh -s $(objpfx) $(subdir) \
 109           $(sort $(xtests) $(xtests-special-notdir:.out=)) \
 110           > $(objpfx)subdir-xtests.sum
 111
 112 ifeq ($(build-programs),yes)
 113 binaries-all-notests = $(others) $(sysdep-others)
 114 binaries-all-tests = $(tests) $(xtests) $(test-srcs)
 115 binaries-all = $(binaries-all-notests) $(binaries-all-tests)
 116 binaries-static-notests = $(others-static)
 117 binaries-static-tests = $(tests-static) $(xtests-static)
 118 binaries-static = $(binaries-static-notests) $(binaries-static-tests)
 119 ifeq (yesyes,$(have-fpie)$(build-shared))
 120 binaries-pie-tests = $(tests-pie) $(xtests-pie)
 121 binaries-pie-notests = $(others-pie)
 122 else
 123 binaries-pie-tests =
 124 binaries-pie-notests =
 125 endif
 126 else
 127 binaries-all-notests =
 128 binaries-all-tests = $(tests) $(xtests) $(test-srcs)
 129 binaries-all = $(binaries-all-tests)
 130 binaries-static-notests =
 131 binaries-static-tests =
 132 binaries-static =
 133 binaries-pie-tests =
 134 binaries-pie-notests =
 135 endif
 136
 137 binaries-pie = $(binaries-pie-tests) $(binaries-pie-notests)
 138 binaries-shared-tests = $(filter-out $(binaries-pie) $(binaries-static), \
 139                                      $(binaries-all-tests))
 140 binaries-shared-notests = $(filter-out $(binaries-pie) $(binaries-static), \
 141                                        $(binaries-all-notests))
 142
 143 ifneq "$(strip $(binaries-shared-notests))" ""
 144 $(addprefix $(objpfx),$(binaries-shared-notests)): %: %.o \
 145   $(sort $(filter $(common-objpfx)lib%,$(link-libc))) \
 146   $(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit)
 147         $(+link)
 148 endif
 149
 150 ifneq "$(strip $(binaries-shared-tests))" ""
 151 $(addprefix $(objpfx),$(binaries-shared-tests)): %: %.o \
 152   $(sort $(filter $(common-objpfx)lib%,$(link-libc))) \
 153   $(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit)
 154         $(+link-tests)
 155 endif
 156
 157 ifneq "$(strip $(binaries-pie-tests))" ""
 158 $(addprefix $(objpfx),$(binaries-pie-tests)): %: %.o \
 159   $(sort $(filter $(common-objpfx)lib%,$(link-libc))) \
 160   $(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit)
 161         $(+link-pie-tests)
 162 endif
 163
 164 ifneq "$(strip $(binaries-pie-notests))" ""
 165 $(addprefix $(objpfx),$(binaries-pie-notests)): %: %.o \
 166   $(sort $(filter $(common-objpfx)lib%,$(link-libc))) \
 167   $(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit)
 168         $(+link-pie)
 169 endif
 170
 171 ifneq "$(strip $(binaries-static-notests))" ""
 172 $(addprefix $(objpfx),$(binaries-static-notests)): %: %.o \
 173   $(sort $(filter $(common-objpfx)lib%,$(link-libc-static))) \
 174   $(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit)
 175         $(+link-static)
 176 endif
 177
 178 ifneq "$(strip $(binaries-static-tests))" ""
 179 $(addprefix $(objpfx),$(binaries-static-tests)): %: %.o \
 180   $(sort $(filter $(common-objpfx)lib%,$(link-libc-static-tests))) \
 181   $(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit)
 182         $(+link-static-tests)
 183 endif
 184
 185 ifneq "$(strip $(tests) $(xtests) $(test-srcs))" ""
 186 # These are the implicit rules for making test outputs
 187 # from the test programs and whatever input files are present.
 188
 189 define make-test-out
 190 $(if $($*-ENV-only),$(test-wrapper-env-only) $($*-ENV-only),\
 191      $(test-wrapper-env) $(run-program-env) $($*-ENV)) \
 192 $(host-test-program-cmd) $($*-ARGS)
 193 endef
 194 $(objpfx)%.out: %.input $(objpfx)%
 195         $(make-test-out) > $@ < $(word 1,$^); \
 196         $(evaluate-test)
 197 $(objpfx)%.out: /dev/null $(objpfx)%    # Make it 2nd arg for canned sequence.
 198         $(make-test-out) > $@; \
 199         $(evaluate-test)
 200
 201 # tests-unsupported lists tests that we will not try to build at all in
 202 # this configuration.  Note this runs every time because it does not
 203 # actually create its target.  The dependency on Makefile is meant to
 204 # ensure that it runs after a Makefile change to add a test to the list
 205 # when it previously ran and produced a .out file (probably for a failure).
 206 ifneq "$(strip $(tests-unsupported))" ""
 207 $(tests-unsupported:%=$(objpfx)%.out): $(objpfx)%.out: Makefile
 208         @rm -f $@
 209         $(..)scripts/evaluate-test.sh $(patsubst $(common-objpfx)%.out,%,$@) \
 210                                       77 false false > $(@:.out=.test-result)
 211 endif
 212
 213 endif   # tests
 214
 215 \f
 216 .PHONY: distclean realclean subdir_distclean subdir_realclean \
 217         subdir_clean subdir_mostlyclean subdir_testclean
 218 subdir_mostlyclean: mostlyclean
 219 subdir_clean: clean
 220 subdir_distclean: distclean
 221 subdir_realclean: realclean
 222 subdir_testclean: do-tests-clean
 223 realclean: distclean
 224 distclean: clean
 225
 226 # We want to install everything except the library itself, but update all
 227 # our portions of the library because the parent make will install it later
 228 # (likewise the stubs file).
 229 .PHONY: subdir_install
 230 subdir_install: install-no-libc.a lib-noranlib stubs
 231
 232 .PHONY: subdir_objs subdir_stubs
 233 subdir_objs: objs
 234 subdir_stubs: stubs
 235
 236 # Target required by the Hurd to ensure that all the MiG-generated
 237 # headers are in place before building a subdirectory.
 238 .PHONY: before-compile
 239 before-compile: $(before-compile)
 240
 241 $(common-objpfx)dummy.o: $(common-objpfx)dummy.c $(before-compile);
 242         $(compile-command.c)
 243
 244 # Local Variables:
 245 # mode: makefile
 246 # End: