Rules

   1 # Copyright (C) 1991-2000,2002,2003,2004,2005,2006,2011
   2 #       Free Software Foundation, Inc.
   3 # This file is part of the GNU C Library.
   4
   5 # The GNU C Library is free software; you can redistribute it and/or
   6 # modify it under the terms of the GNU Lesser General Public
   7 # License as published by the Free Software Foundation; either
   8 # version 2.1 of the License, or (at your option) any later version.
   9
  10 # The GNU C Library is distributed in the hope that it will be useful,
  11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13 # Lesser General Public License for more details.
  14
  15 # You should have received a copy of the GNU Lesser General Public
  16 # License along with the GNU C Library; if not, see
  17 # <http://www.gnu.org/licenses/>.
  18
  19 #
  20 #       Rules for making a subdirectory in the GNU C library.
  21 #       Each subdirectory Makefile defines some variables and includes this.
  22 #
  23 ifneq (,)
  24 This makefile requires GNU Make.
  25 endif
  26
  27 all: # Don't let the default goal come from Makeconfig.
  28
  29 include $(firstword $(..) ../)Makeconfig
  30
  31 ifndef  subdir
  32 Each subdirectory makefile must define the `subdir' variable.
  33 endif
  34 # This ` unconfuses emacs.
  35 # This is benign and useless in GNU make before 3.63.
  36 export subdir := $(subdir)
  37 \f
  38 # This is the default target; it makes the library and auxiliary programs.
  39 .PHONY: all
  40 all: objs lib others
  41
  42 ifeq ($(build-programs),yes)
  43 others: $(addprefix $(objpfx),$(extra-objs) \
  44                               $(install-lib) \
  45                               $(install-bin) $(install-bin-script) \
  46                               $(install-rootsbin) $(install-sbin))
  47 else
  48 others: $(addprefix $(objpfx),$(extra-objs) \
  49                               $(install-lib))
  50 endif
  51
  52 ifneq   "$(findstring env,$(origin headers))" ""
  53 headers :=
  54 endif
  55
  56 ifneq   "$(findstring env,$(origin generated))" ""
  57 generated :=
  58 endif
  59
  60 ifneq   "$(findstring env,$(origin common-generated))" ""
  61 common-generated :=
  62 endif
  63
  64 # See below.  This must be set before Makerules processes it.
  65 before-compile += $(common-objpfx)bits/stdio_lim.h
  66
  67 include $(..)Makerules
  68
  69 .PHONY: subdir_lib
  70 subdir_lib: lib-noranlib
  71
  72 # Some subdirs need to install a dummy library.
  73 # They can use "$(objpfx)libfnord.a: $(dep-dummy-lib); $(make-dummy-lib)".
  74 dep-dummy-lib = $(common-objpfx)dummy.o
  75 define make-dummy-lib
  76 $(AR) cr$(verbose) $@ $<
  77 endef
  78
  79 $(common-objpfx)dummy.c:
  80         rm -f $@
  81         (echo 'extern void __dummy__ (void);'; \
  82          echo 'void __dummy__ (void) { }') > $@
  83 common-generated += dummy.o dummy.c
  84 \f
  85 # This makes all the auxiliary and test programs.
  86
  87 .PHONY: others tests
  88 ifeq ($(build-programs),yes)
  89 others: $(addprefix $(objpfx),$(others) $(sysdep-others) $(extra-objs))
  90 else
  91 others: $(addprefix $(objpfx),$(extra-objs))
  92 endif
  93 ifeq ($(cross-compiling),yes)
  94 tests: $(addprefix $(objpfx),$(tests) $(test-srcs))
  95 xtests: tests
  96 else
  97 ifeq ($(build-bounded),yes)
  98 tests-bp.out = $(tests:%=$(objpfx)%-bp.out)
  99 xtests-bp.out = $(xtests:%=$(objpfx)%-bp.out)
 100 endif
 101 tests: $(tests:%=$(objpfx)%.out) $(tests-bp.out)
 102 xtests: tests $(xtests:%=$(objpfx)%.out) $(xtests-bp.out)
 103 endif
 104
 105 ifeq ($(build-programs),yes)
 106 binaries-all = $(others) $(sysdep-others) $(tests) $(xtests) $(test-srcs)
 107 binaries-static = $(others-static) $(tests-static) $(xtests-static)
 108 ifeq (yesyes,$(have-fpie)$(build-shared))
 109 binaries-pie = $(others-pie) $(tests-pie) $(xtests-pie)
 110 else
 111 binaries-pie =
 112 endif
 113 else
 114 binaries-all = $(tests) $(xtests) $(test-srcs)
 115 binaries-static =
 116 binaries-pie =
 117 endif
 118
 119 binaries-shared = $(filter-out $(binaries-pie) $(binaries-static), \
 120                                $(binaries-all))
 121
 122 ifneq "$(strip $(binaries-shared))" ""
 123 $(addprefix $(objpfx),$(binaries-shared)): %: %.o \
 124   $(sort $(filter $(common-objpfx)lib%,$(link-libc))) \
 125   $(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit)
 126         $(+link)
 127 endif
 128
 129 ifneq "$(strip $(binaries-pie))" ""
 130 $(addprefix $(objpfx),$(binaries-pie)): %: %.o \
 131   $(sort $(filter $(common-objpfx)lib%,$(link-libc))) \
 132   $(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit)
 133         $(+link-pie)
 134 endif
 135
 136 ifneq "$(strip $(binaries-static))" ""
 137 $(addprefix $(objpfx),$(binaries-static)): %: %.o \
 138   $(sort $(filter $(common-objpfx)lib%,$(link-libc-static))) \
 139   $(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit)
 140         $(+link-static)
 141 endif
 142
 143 ifeq ($(build-bounded),yes)
 144 binaries-bounded = $(addsuffix -bp,$(tests) $(xtests) $(test-srcs))
 145 $(addprefix $(objpfx),$(binaries-bounded)): %-bp: %.ob \
 146   $(sort $(filter $(common-objpfx)lib%,$(link-libc-bounded))) \
 147   $(addprefix $(csu-objpfx),start.ob) $(+preinit) $(+postinit)
 148         $(+link-bounded)
 149 endif
 150
 151 ifneq "$(strip $(tests) $(xtests) $(test-srcs))" ""
 152 # These are the implicit rules for making test outputs
 153 # from the test programs and whatever input files are present.
 154
 155 make-test-out = GCONV_PATH=$(common-objpfx)iconvdata LC_ALL=C \
 156                 $($*-ENV) $(built-program-cmd) $($*-ARGS)
 157 $(objpfx)%-bp.out: %.input $(objpfx)%-bp
 158         $(make-test-out) > $@ < $(word 1,$^)
 159 $(objpfx)%.out: %.input $(objpfx)%
 160         $(make-test-out) > $@ < $(word 1,$^)
 161 $(objpfx)%.out: /dev/null $(objpfx)%    # Make it 2nd arg for canned sequence.
 162         $(make-test-out) > $@
 163
 164 endif   # tests
 165 \f
 166 .PHONY: distclean realclean subdir_distclean subdir_realclean \
 167         subdir_clean subdir_mostlyclean subdir_testclean
 168 subdir_mostlyclean: mostlyclean
 169 subdir_clean: clean
 170 subdir_distclean: distclean
 171 subdir_realclean: realclean
 172 subdir_testclean: do-tests-clean
 173 realclean: distclean
 174 distclean: clean
 175
 176 # We want to install everything except the library itself, but update all
 177 # our portions of the library because the parent make will install it later
 178 # (likewise the stubs file).
 179 .PHONY: subdir_install
 180 subdir_install: install-no-libc.a lib-noranlib stubs
 181
 182 .PHONY: subdir_objs subdir_stubs
 183 subdir_objs: objs
 184 subdir_stubs: stubs
 185
 186 # Target required by the Hurd to ensure that all the MiG-generated
 187 # headers are in place before building a subdirectory.
 188 .PHONY: before-compile
 189 before-compile: $(before-compile)
 190
 191 $(common-objpfx)dummy.o: $(common-objpfx)dummy.c $(before-compile);
 192         $(compile-command.c)
 193
 194 # Local Variables:
 195 # mode: makefile
 196 # End: