Rules

   1 # Copyright (C) 1991-2012 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) { }') > $@
  82 common-generated += dummy.o dummy.c
  83 \f
  84 # This makes all the auxiliary and test programs.
  85
  86 .PHONY: others tests
  87 ifeq ($(build-programs),yes)
  88 others: $(addprefix $(objpfx),$(others) $(sysdep-others) $(extra-objs))
  89 else
  90 others: $(addprefix $(objpfx),$(extra-objs))
  91 endif
  92 ifeq ($(cross-compiling),yes)
  93 tests: $(addprefix $(objpfx),$(tests) $(test-srcs))
  94 xtests: tests
  95 else
  96 ifeq ($(build-bounded),yes)
  97 tests-bp.out = $(tests:%=$(objpfx)%-bp.out)
  98 xtests-bp.out = $(xtests:%=$(objpfx)%-bp.out)
  99 endif
 100 tests: $(tests:%=$(objpfx)%.out) $(tests-bp.out)
 101 xtests: tests $(xtests:%=$(objpfx)%.out) $(xtests-bp.out)
 102 endif
 103
 104 ifeq ($(build-programs),yes)
 105 binaries-all-notests = $(others) $(sysdep-others)
 106 binaries-all-tests = $(tests) $(xtests) $(test-srcs)
 107 binaries-all = $(binaries-all-notests) $(binaries-all-tests)
 108 binaries-static-notests = $(others-static)
 109 binaries-static-tests = $(tests-static) $(xtests-static)
 110 binaries-static = $(binaries-static-notests) $(binaries-static-tests)
 111 ifeq (yesyes,$(have-fpie)$(build-shared))
 112 binaries-pie = $(others-pie) $(tests-pie) $(xtests-pie)
 113 else
 114 binaries-pie =
 115 endif
 116 else
 117 binaries-all-notests =
 118 binaries-all-tests = $(tests) $(xtests) $(test-srcs)
 119 binaries-all = $(binaries-all-tests)
 120 binaries-static-notests =
 121 binaries-static-tests =
 122 binaries-static =
 123 binaries-pie =
 124 endif
 125
 126 binaries-shared-tests = $(filter-out $(binaries-pie) $(binaries-static), \
 127                                      $(binaries-all-tests))
 128 binaries-shared-notests = $(filter-out $(binaries-pie) $(binaries-static), \
 129                                        $(binaries-all-notests))
 130
 131 ifneq "$(strip $(binaries-shared-notests))" ""
 132 $(addprefix $(objpfx),$(binaries-shared-notests)): %: %.o \
 133   $(sort $(filter $(common-objpfx)lib%,$(link-libc))) \
 134   $(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit)
 135         $(+link)
 136 endif
 137
 138 ifneq "$(strip $(binaries-shared-tests))" ""
 139 $(addprefix $(objpfx),$(binaries-shared-tests)): %: %.o \
 140   $(sort $(filter $(common-objpfx)lib%,$(link-libc))) \
 141   $(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit)
 142         $(+link-tests)
 143 endif
 144
 145 ifneq "$(strip $(binaries-pie))" ""
 146 $(addprefix $(objpfx),$(binaries-pie)): %: %.o \
 147   $(sort $(filter $(common-objpfx)lib%,$(link-libc))) \
 148   $(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit)
 149         $(+link-pie)
 150 endif
 151
 152 ifneq "$(strip $(binaries-static-notests))" ""
 153 $(addprefix $(objpfx),$(binaries-static-notests)): %: %.o \
 154   $(sort $(filter $(common-objpfx)lib%,$(link-libc-static))) \
 155   $(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit)
 156         $(+link-static)
 157 endif
 158
 159 ifneq "$(strip $(binaries-static-tests))" ""
 160 $(addprefix $(objpfx),$(binaries-static-tests)): %: %.o \
 161   $(sort $(filter $(common-objpfx)lib%,$(link-libc-static-tests))) \
 162   $(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit)
 163         $(+link-static-tests)
 164 endif
 165
 166 ifeq ($(build-bounded),yes)
 167 binaries-bounded = $(addsuffix -bp,$(tests) $(xtests) $(test-srcs))
 168 $(addprefix $(objpfx),$(binaries-bounded)): %-bp: %.ob \
 169   $(sort $(filter $(common-objpfx)lib%,$(link-libc-bounded))) \
 170   $(addprefix $(csu-objpfx),start.ob) $(+preinit) $(+postinit)
 171         $(+link-bounded)
 172 endif
 173
 174 ifneq "$(strip $(tests) $(xtests) $(test-srcs))" ""
 175 # These are the implicit rules for making test outputs
 176 # from the test programs and whatever input files are present.
 177
 178 make-test-out = GCONV_PATH=$(common-objpfx)iconvdata LC_ALL=C \
 179                 $($*-ENV) $(built-program-cmd) $($*-ARGS)
 180 $(objpfx)%-bp.out: %.input $(objpfx)%-bp
 181         $(make-test-out) > $@ < $(word 1,$^)
 182 $(objpfx)%.out: %.input $(objpfx)%
 183         $(make-test-out) > $@ < $(word 1,$^)
 184 $(objpfx)%.out: /dev/null $(objpfx)%    # Make it 2nd arg for canned sequence.
 185         $(make-test-out) > $@
 186
 187 endif   # tests
 188 \f
 189 .PHONY: distclean realclean subdir_distclean subdir_realclean \
 190         subdir_clean subdir_mostlyclean subdir_testclean
 191 subdir_mostlyclean: mostlyclean
 192 subdir_clean: clean
 193 subdir_distclean: distclean
 194 subdir_realclean: realclean
 195 subdir_testclean: do-tests-clean
 196 realclean: distclean
 197 distclean: clean
 198
 199 # We want to install everything except the library itself, but update all
 200 # our portions of the library because the parent make will install it later
 201 # (likewise the stubs file).
 202 .PHONY: subdir_install
 203 subdir_install: install-no-libc.a lib-noranlib stubs
 204
 205 .PHONY: subdir_objs subdir_stubs
 206 subdir_objs: objs
 207 subdir_stubs: stubs
 208
 209 # Target required by the Hurd to ensure that all the MiG-generated
 210 # headers are in place before building a subdirectory.
 211 .PHONY: before-compile
 212 before-compile: $(before-compile)
 213
 214 $(common-objpfx)dummy.o: $(common-objpfx)dummy.c $(before-compile);
 215         $(compile-command.c)
 216
 217 # Local Variables:
 218 # mode: makefile
 219 # End: