1 # Copyright (C) 1991-2000,01,02, 03 Free Software Foundation, Inc.
2 # This file is part of the GNU C Library.
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.
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.
14 # You should have received a copy of the GNU Lesser General Public
15 # License along with the GNU C Library; if not, write to the Free
16 # Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
20 # Makefile configuration options for the GNU C library.
23 This makefile requires GNU Make.
26 all: # Make this the default goal
28 ifneq "$(origin +included-Makeconfig)" "file"
30 +included-Makeconfig := yes
36 # If config.make exists, the source directory was configured,
37 # so don't try to be clever and find another directory to build in.
38 ifneq (,$(wildcard $(..)config.make))
41 else # Not configured.
49 # Directory for object files and libc.a. If this is not defined, the
50 # object files live in the subdirectories where their sources live, and
51 # libc.a lives in the parent directory (this probably doesn't work any
54 ifeq ($(filter /%,$(ARCH)),)
55 objdir := $(..)$(ARCH)
61 # $(common-objdir) is the place to put objects and
62 # such that are not specific to a single subdir.
64 objpfx := $(patsubst %//,%/,$(objdir)/$(subdir)/)
65 common-objpfx = $(objdir)/
66 common-objdir = $(objdir)
73 # This is a kludge. make wizards might grok.
74 common-objpfx = sysdeps/../
79 # Root of the sysdeps tree.
80 sysdep_dir := $(..)sysdeps
81 export sysdep_dir := $(sysdep_dir)
83 # Get the values defined by options to `configure'.
84 include $(common-objpfx)config.make
86 # We have a special subdir for each binary format.
87 # For now, only ELF is fully supported.
91 # This is probably better than nothing.
95 # Complete path to sysdep dirs.
96 export full_config_sysdirs := $(addprefix $(..),$(config-sysdirs))
98 # Run config.status to update config.make and config.h. We don't show the
99 # dependence of config.h to Make, because it is only touched when it
100 # changes and so config.status would be run every time; the dependence of
101 # config.make should suffice to force regeneration and re-exec, and the new
102 # image will notice if config.h changed.
103 $(common-objpfx)config.make: $(common-objpfx)config.status \
104 $(..)config.make.in $(..)config.h.in
105 cd $(<D); $(SHELL) $(<F)
107 # Find all the sysdeps configure fragments, to make sure we re-run
108 # configure when any of them changes.
109 $(common-objpfx)config.status: $(..)version.h $(..)configure \
110 $(foreach dir,$(full_config_sysdirs),\
114 $(firstword $(wildcard \
115 $(addprefix $(dir)/,configure configure.in)))))
116 @cd $(@D); if test -f $(@F); then exec $(SHELL) $(@F) --recheck; else \
117 echo The GNU C library has not been configured. >&2; \
118 echo Run \`configure\' to configure it before building. >&2; \
119 echo Try \`configure --help\' for more details. >&2; \
122 # We don't want CPPFLAGS to be exported to the command running configure.
125 # Get the user's configuration parameters.
126 ifneq ($(wildcard $(..)configparms),)
127 include $(..)configparms
130 ifneq ($(wildcard $(common-objpfx)configparms),)
131 include $(common-objpfx)configparms
136 #### These are the configuration variables. You can define values for
137 #### the variables below in the file `configparms'.
138 #### Do NOT edit this file.
142 # Common prefix for machine-independent installation directories.
143 ifeq ($(origin prefix),undefined) # ifndef would override explicit empty value.
147 # Decide whether we shall build the programs or not. We always do this
148 # unless the user tells us (in configparms) or we are building for a
150 ifndef build-programs
151 ifneq ($(config-os),none)
158 # Common prefix for machine-dependent installation directories.
159 ifeq ($(origin exec_prefix),undefined)
160 exec_prefix = $(prefix)
163 # Where to install the library and object files.
165 libdir = $(exec_prefix)/lib
167 inst_libdir = $(install_root)$(libdir)
169 # Where to install the shared library and dynamic linker.
171 slibdir = $(exec_prefix)/lib
173 inst_slibdir = $(install_root)$(slibdir)
175 # Prefix to put on files installed in $(libdir). For libraries `libNAME.a',
176 # the prefix is spliced between `lib' and the name, so the linker switch
177 # `-l$(libprefix)NAME' finds the library; for other files the prefix is
178 # just prepended to the whole file name.
179 ifeq ($(origin libprefix),undefined)
183 # Where to install the header files.
185 includedir = $(prefix)/include
187 inst_includedir = $(install_root)$(includedir)
189 # Where to install machine-independent data files.
190 # These are the timezone database, and the locale database.
192 datadir = $(prefix)/share
194 inst_datadir = $(install_root)$(datadir)
196 # Where to install the timezone data files (which are machine-independent).
198 zonedir = $(datadir)/zoneinfo
200 inst_zonedir = $(install_root)$(zonedir)
202 # Where to install the locale files.
204 localedir = $(libdir)/locale
206 inst_localedir = $(install_root)$(localedir)
208 # Where to install the message catalog data files (which are
209 # machine-independent).
211 msgcatdir = $(datadir)/locale
213 inst_msgcatdir = $(install_root)$(msgcatdir)
215 # Where to install the locale charmap source files.
217 i18ndir = $(datadir)/i18n
219 inst_i18ndir = $(install_root)$(i18ndir)
221 # Where to install the shared object for charset transformation.
223 gconvdir = $(libdir)/gconv
225 inst_gconvdir = $(install_root)$(gconvdir)
227 # Where to install programs.
229 bindir = $(exec_prefix)/bin
231 inst_bindir = $(install_root)$(bindir)
233 # Where to install internal programs.
235 libexecdir = $(exec_prefix)/libexec
237 inst_libexecdir = $(install_root)$(libexecdir)
239 # Where to install administrative programs.
241 rootsbindir = $(exec_prefix)/sbin
243 inst_rootsbindir = $(install_root)$(rootsbindir)
246 sbindir = $(exec_prefix)/sbin
248 inst_sbindir = $(install_root)$(sbindir)
250 # Where to install the Info files.
252 infodir = $(prefix)/info
254 inst_infodir = $(install_root)$(infodir)
256 # Where to install default configuration files. These include the local
257 # timezone specification and network data base files.
259 sysconfdir = $(prefix)/etc
261 inst_sysconfdir = $(install_root)$(sysconfdir)
263 # What timezone should be the installed default (e.g., US/Eastern).
264 # Run `make -C time echo-zonenames' to see a list of available zone names.
265 # The local timezone can be changed with `zic -l TIMEZONE' at any time.
270 # Where to install the "localtime" timezone file; this is the file whose
271 # contents $(localtime) specifies. If this is a relative pathname, it is
272 # relative to $(zonedir). It is a good idea to put this somewhere
273 # other than there, so the zoneinfo directory contains only universal data,
274 # localizing the configuration data elsewhere.
275 ifndef localtime-file
276 localtime-file = $(sysconfdir)/localtime
277 inst_localtime-file = $(install_root)$(localtime-file)
280 # What to use for leap second specifications in compiling the default
281 # timezone files. Set this to `/dev/null' for no leap second handling as
282 # 1003.1 requires, or to `leapseconds' for proper leap second handling.
283 # Both zone flavors are always available as `posix/ZONE' and `right/ZONE'.
284 # This variable determines the default: if it's `/dev/null',
285 # ZONE==posix/ZONE; if it's `leapseconds', ZONE==right/ZONE.
287 leapseconds = /dev/null
290 # What timezone's DST rules should be used when a POSIX-style TZ
291 # environment variable doesn't specify any rules. For 1003.1 compliance
292 # this timezone must use rules that are as U.S. federal law defines DST.
293 # Run `make -C time echo-zonenames' to see a list of available zone names.
294 # This setting can be changed with `zic -p TIMEZONE' at any time.
295 # If you want POSIX.1 compatibility, use `America/New_York'.
297 posixrules = America/New_York
300 # Where to install the "posixrules" timezone file; this is file
301 # whose contents $(posixrules) specifies. If this is a relative
302 # pathname, it is relative to $(zonedir).
303 ifndef posixrules-file
304 posixrules-file = posixrules
308 # Directory where your system's native header files live.
309 # This is used on Unix systems to generate some GNU libc header files.
311 sysincludedir = /usr/include
315 # Commands to install files.
317 INSTALL_DATA = $(INSTALL) -m 644
319 ifndef INSTALL_SCRIPT
320 INSTALL_SCRIPT = $(INSTALL)
322 ifndef INSTALL_PROGRAM
323 INSTALL_PROGRAM = $(INSTALL)
330 # The name of the C compiler.
331 # If you've got GCC, and it works, use it.
332 ifeq ($(origin CC),default)
336 # The name of the C compiler to use for compilations of programs to run on
337 # the host that is building the library. If you set CC to a
338 # cross-compiler, you must set this to the normal compiler.
343 # Default flags to pass the C compiler.
344 ifndef default_cflags
345 ifeq ($(release),stable)
346 default_cflags := -g -O2
348 default_cflags := -g -O
352 # Flags to pass the C compiler when assembling preprocessed assembly code
353 # (`.S' files). On some systems the assembler doesn't understand the `#' line
354 # directives the preprocessor produces. If you have troubling compiling
355 # assembly code, try using -P here to suppress these directives.
360 # ELF always supports init/fini sections
365 # Installed name of the startup code.
366 ifneq ($(have-initfini),yes)
367 # When not having init/fini, there is just one startfile, called crt0.o.
368 start-installed-name = crt0.o
370 # On systems having init/fini, crt0.o is called crt1.o, and there are
371 # some additional bizarre files.
372 start-installed-name = crt1.o
374 # On systems that do not need a special startfile for statically linked
375 # binaries, simply set it to the normal name.
376 ifndef static-start-installed-name
377 static-start-installed-name = $(start-installed-name)
380 ifeq (yesyesyes,$(build-shared)$(elf)$(have-z-combreloc))
381 combreloc-LDFLAGS = -Wl,-z,combreloc
382 LDFLAGS.so += $(combreloc-LDFLAGS)
383 LDFLAGS-rtld += $(combreloc-LDFLAGS)
386 # Command for linking programs with the C library.
388 +link = $(CC) -nostdlib -nostartfiles -o $@ \
389 $(sysdep-LDFLAGS) $(config-LDFLAGS) $(LDFLAGS) $(LDFLAGS-$(@F)) \
390 $(combreloc-LDFLAGS) \
391 $(addprefix $(csu-objpfx),$(start-installed-name)) \
392 $(+preinit) $(+prector) \
393 $(filter-out $(addprefix $(csu-objpfx),start.o \
394 $(start-installed-name))\
395 $(+preinit) $(link-extra-libs) \
396 $(common-objpfx)libc% $(+postinit),$^) \
397 $(link-extra-libs) $(link-libc) $(+postctor) $(+postinit)
399 # Command for statically linking programs with the C library.
401 +link-static = $(CC) -nostdlib -nostartfiles -static -o $@ \
402 $(sysdep-LDFLAGS) $(LDFLAGS) \
403 $(addprefix $(csu-objpfx),$(static-start-installed-name)) \
404 $(+preinit) $(+prector) \
405 $(filter-out $(addprefix $(csu-objpfx),start.o \
406 $(start-installed-name))\
407 $(+preinit) $(link-extra-libs-static) \
408 $(common-objpfx)libc% $(+postinit),$^) \
409 $(link-extra-libs-static) $(link-libc-static) $(+postctor) $(+postinit)
411 # Command for statically linking bounded-pointer programs with the C library.
413 +link-bounded = $(CC) -nostdlib -nostartfiles -static -fbounded-pointers -o $@ \
414 $(sysdep-LDFLAGS) $(LDFLAGS) \
415 $(addprefix $(csu-objpfx),b$(static-start-installed-name)) \
416 $(+preinit) $(+prector) \
417 $(filter-out $(addprefix $(csu-objpfx),start.ob \
418 $(start-installed-name))\
419 $(+preinit) $(link-extra-libs-bounded) \
420 $(common-objpfx)libc% $(+postinit),$^) \
421 $(link-extra-libs-bounded) $(link-libc-bounded) $(+postctor) $(+postinit)
423 ifndef config-LDFLAGS
424 ifeq (yesyes,$(build-shared)$(elf))
425 config-LDFLAGS = -Wl,-dynamic-linker=$(slibdir)/$(rtld-installed-name)
429 ifeq (yes,$(build-shared))
431 # We need the versioned name of libc.so in the deps of $(others) et al
432 # so that the symlink to libc.so is created before anything tries to
433 # run the linked programs.
434 link-libc = -Wl,-rpath-link=$(rpath-link) \
435 $(common-objpfx)libc.so$(libc.so-version) \
436 $(common-objpfx)$(patsubst %,$(libtype.oS),c) $(gnulib)
437 # This is how to find at build-time things that will be installed there.
438 rpath-dirs = math elf dlfcn nss nis rt resolv crypt
440 ifneq (,$(filter aix aix%,$(config-os)))
441 link-libc = $(common-objpfx)libc.a \
442 $(common-objpfx)$(patsubst %,$(libtype.oS),c) $(gnulib)
443 rpath-dirs = math dlfcn nss nis rt resolv crypt
447 $(common-objdir):$(subst $(empty) ,:,$(patsubst ../$(subdir),.,$(rpath-dirs:%=$(common-objpfx)%)))
448 elfobjdir := $(patsubst ../$(subdir),.,$(common-objpfx)elf)
450 nssobjdir := $(patsubst ../$(subdir),.,$(common-objpfx)nss)
451 resolvobjdir := $(patsubst ../$(subdir),.,$(common-objpfx)resolv)
452 link-libc = $(common-objpfx)libc.a $(otherlibs) $(gnulib) $(common-objpfx)libc.a $(gnulib)
456 # Differences in the linkers on the various platforms.
458 LDFLAGS-rpath-ORIGIN = -Wl,-rpath,'$$ORIGIN'
459 LDFLAGS-soname-fname = -Wl,-soname,$(@F)
460 LDFLAGS-rdynamic = -rdynamic
461 LDFLAGS-Bsymbolic = -Bsymbolic
463 ifneq (,$(filter aix aix%,$(config-os)))
464 LDFLAGS-rpath-ORIGIN =
465 LDFLAGS-soname-fname =
466 LDFLAGS-rdynamic = -Wl,-bdynamic
467 LDFLAGS-Bsymbolic = -Wl,-bsymbolic
471 # Choose the default search path for the dynamic linker based on
472 # where we will install libraries.
473 ifneq ($(libdir),$(slibdir))
474 default-rpath = $(slibdir):$(libdir)
476 default-rpath = $(libdir)
479 ifndef link-extra-libs
480 ifeq (yes,$(build-shared))
481 ifneq ($(common-objpfx),$(objpfx))
482 link-extra-libs = $(foreach lib,$(LDLIBS-$(@F)),\
483 $(wildcard $(common-objpfx)$(lib).so$($(notdir $(lib)).so-version) \
484 $(objpfx)$(lib).so$($(notdir $(lib)).so-version)))
486 link-extra-libs = $(foreach lib,$(LDLIBS-$(@F)),$(common-objpfx)$(lib).so$($(notdir $(lib)).so-version))
489 link-extra-libs = $(foreach lib,$(LDLIBS-$(@F)),$(common-objpfx)$(lib).a)
493 # The static libraries.
494 ifeq (yes,$(build-static))
495 link-libc-static = $(common-objpfx)libc.a $(gnulib) $(common-objpfx)libc.a
496 link-extra-libs-static = $(foreach lib,$(LDLIBS-$(@F)),$(common-objpfx)$(lib).a)
498 ifeq (yes,$(build-shared))
499 # We can try to link the programs with lib*_pic.a...
500 link-libc-static = $(gnulib) $(common-objpfx)libc_pic.a
501 link-extra-libs-static = $(link-extra-libs)
504 link-libc-bounded = $(common-objpfx)libc_b.a $(gnulib) $(common-objpfx)libc_b.a
505 link-extra-libs-bounded = $(foreach lib,$(LDLIBS-$(@F:%-bp=%)),$(common-objpfx)$(lib)_b.a)
511 +preinit = $(addprefix $(csu-objpfx),crti.o)
512 +postinit = $(addprefix $(csu-objpfx),crtn.o)
513 +prector = `$(CC) --print-file-name=crtbegin.o`
514 +postctor = `$(CC) --print-file-name=crtend.o`
515 +interp = $(addprefix $(elf-objpfx),interp.os)
517 csu-objpfx = $(common-objpfx)csu/
518 elf-objpfx = $(common-objpfx)elf/
520 # How to run a program we just linked with our library.
521 # The program binary is assumed to be $(word 2,$^).
522 built-program-file = $(dir $(word 2,$^))$(notdir $(word 2,$^))
523 ifeq (yesyes,$(build-shared)$(elf))
525 sysdep-library-path = \
526 $(subst $(empty) ,:,$(strip $(patsubst -Wl$(comma)-rpath-link=%, %,\
527 $(filter -Wl$(comma)-rpath-link=%,\
528 $(sysdep-LDFLAGS)))))
529 run-program-prefix = $(if $(filter $(notdir $(built-program-file)),\
531 $(elf-objpfx)$(rtld-installed-name) \
532 --library-path $(rpath-link)$(patsubst %,:%,$(sysdep-library-path)))
536 # Never use $(run-program-prefix) for the statically-linked %-bp test programs
537 built-program-cmd = $(patsubst %,$(run-program-prefix),\
538 $(filter-out %-bp,$(built-program-file))) \
539 $(built-program-file)
549 # Extra flags to pass to GCC.
550 ifeq ($(all-warnings),yes)
551 +gccwarn := -Wall -Wwrite-strings -Winline -Wstrict-prototypes -Wcast-qual -Wbad-function-cast -Wmissing-noreturn -Wmissing-prototypes -Wmissing-declarations -Wcomment -Wcomments -Wtrigraphs -Wsign-compare -Wfloat-equal -Wmultichar
553 +gccwarn := -Wall -Wwrite-strings -Winline -Wstrict-prototypes
556 # This is the program that generates makefile dependencies from C source files.
557 # The -MP flag tells GCC >= 3.2 (which we now require) to produce dummy
558 # targets for headers so that removed headers don't break the build.
560 +mkdep = $(CC) -M -MP
563 # The program that makes Emacs-style TAGS files.
566 # The `m4' macro processor; this is used by sysdeps/sparc/Makefile (and
567 # perhaps others) to preprocess assembly code in some cases.
570 # To force installation of files even if they are older than the
571 # installed files. This variable is included in the dependency list
572 # of all installation targets.
573 ifeq ($(force-install),yes)
574 +force = force-install
580 #### End of configuration variables.
583 # This tells some versions of GNU make before 3.63 not to export all variables.
586 # We want to echo the commands we're running without
587 # umpteen zillion filenames along with it (we use `...' instead)
588 # but we don't want this echoing done when the user has said
589 # he doesn't want to see commands echoed by using -s.
590 ifneq "$(findstring s,$(MAKEFLAGS))" "" # if -s
591 +cmdecho := echo >/dev/null
596 # These are the flags given to the compiler to tell
597 # it what sort of optimization and/or debugging output to do.
599 # If `CFLAGS' was defined, use that.
601 +cflags := $(filter-out -I%,$(CFLAGS))
605 # If none of the above worked, default to "-g -O".
606 ifeq "$(strip $(+cflags))" ""
607 +cflags := $(default_cflags)
608 endif # $(+cflags) == ""
610 +cflags := $(+cflags) $(+gccwarn)
613 # Don't duplicate options if we inherited variables from the parent.
614 +cflags := $(sort $(+cflags))
617 # These are flags given to the C compiler to tell it to look for include
618 # files (including ones given in angle brackets) in the current directory,
619 # in the parent library source directory and in the include directory.
620 # `+sysdep-includes' will be defined by Makerules.
621 +includes = -I$(..)include -I. \
622 $(patsubst %/,-I%,$(objpfx)) $(patsubst %/,-I%,$(..)) \
623 $(libio-include) $(includes) \
624 $(+sysdep-includes) $(last-includes) $(sysincludes)
626 # Since libio has several internal header files, we use a -I instead
627 # of many little headers in the include directory.
628 libio-include = -I$(..)libio
630 # These are the variables that the implicit compilation rules use.
631 # Note that we can't use -std=* in CPPFLAGS, because it overrides
632 # the implicit -lang-asm and breaks cpp behavior for .S files--notably
633 # it causes cpp to stop predefining __ASSEMBLER__.
634 CPPFLAGS = $($(subdir)-CPPFLAGS) $(+includes) $(defines) \
635 -include $(..)include/libc-symbols.h $(sysdep-CPPFLAGS) \
636 $(CPPFLAGS-$(suffix $@)) \
637 $(foreach lib,$(libof-$(basename $(@F))) \
638 $(libof-$(<F)) $(libof-$(@F)),$(CPPFLAGS-$(lib))) \
639 $(CPPFLAGS-$(<F)) $(CPPFLAGS-$(@F)) $(CPPFLAGS-$(basename $(@F)))
640 override CFLAGS = -std=gnu99 \
641 $(filter-out %frame-pointer,$(+cflags)) $(sysdep-CFLAGS) \
642 $(CFLAGS-$(suffix $@)) $(CFLAGS-$(<F)) $(CFLAGS-$(@F))
644 # If everything is compiled with -fPIC (implicitly) we must tell this by
645 # defining the PIC symbol.
646 ifeq (yes,$(build-pic-default))
650 # Enable object files for different versions of the library.
651 # Various things use $(object-suffixes) to know what all to make.
652 # The compilation rules use $(CPPFLAGS-${SUFFIX}) and $(CFLAGS-${SUFFIX})
653 # to pass different flags for each flavor.
654 libtypes = $(foreach o,$(object-suffixes-for-libc),$(libtype$o))
655 all-object-suffixes := .o .os .op .og .ob .oS
657 CPPFLAGS-.o = $(pic-default)
658 CFLAGS-.o = $(filter %frame-pointer,$(+cflags))
659 ifeq (yes,$(build-static))
661 object-suffixes += .o
663 ifeq (yes,$(build-shared))
664 # Under --enable-shared, we will build a shared library of PIC objects.
665 # The PIC object files are named foo.os.
666 object-suffixes += .os
667 CPPFLAGS-.os = -DPIC -DSHARED
668 CFLAGS-.os = $(filter %frame-pointer,$(+cflags)) $(pic-ccflag)
669 libtype.os := lib%_pic.a
670 # This can be changed by a sysdep makefile
673 ifeq (yes,$(build-profile))
674 # Under --enable-profile, we will build a static library of profiled objects.
675 # The profiled object files are named foo.op.
676 object-suffixes += .op
677 CPPFLAGS-.op = -DPROF $(pic-default)
679 libtype.op = lib%_p.a
681 ifeq (yes,$(build-omitfp))
682 # Under --enable-omitfp, we build the library optimized without
683 # debugging information using -fomit-frame-pointer, and build an extra
684 # library with debugging information. The debuggable objects are named foo.og.
685 object-suffixes += .og
686 CPPFLAGS-.og = $(pic-default)
688 CFLAGS-.o = $(filter %frame-pointer,$(+cflags)) -g0 -O99 -fomit-frame-pointer -D__USE_STRING_INLINES
689 CFLAGS-.os += -g0 -O99 -fomit-frame-pointer -D__USE_STRING_INLINES
690 libtype.og = lib%_g.a
694 ifeq (yes,$(build-bounded))
695 # Under --enable-bounded, we build the library with `-fbounded-pointers -g'
696 # to runtime bounds checking. The bounded-pointer objects are named foo.ob.
697 # We disable sibling-call optimizations so that stack traces will be complete
698 # and thus aid debugging, since after all, BPs are a debugging tool.
699 object-suffixes += .ob
700 CPPFLAGS-.ob = -fbounded-pointers $(pic-default)
701 CFLAGS-.ob = -g -O2 -fno-optimize-sibling-calls -fno-strict-aliasing
702 libtype.ob = lib%_b.a
705 object-suffixes-for-libc := $(object-suffixes)
707 ifeq (yes,$(build-shared))
708 # Build special library that contains the static-only routines for libc.
709 object-suffixes-for-libc += .oS
711 # Must build the routines as PIC, though, because they can end up in (users')
712 # shared objects. We don't want to use CFLAGS-os because users may, for
713 # example, make that processor-specific.
714 CFLAGS-.oS = $(CFLAGS-.o) $(pic-ccflag)
715 CPPFLAGS-.oS = $(CPPFLAGS-.o) -DPIC -DLIBC_NONSHARED=1
716 libtype.oS = lib%_nonshared.a
719 # The assembler can generate debug information too.
721 ifeq ($(have-cpp-asm-debuginfo),yes)
722 ASFLAGS := $(filter -g%,$(CFLAGS))
726 +gnu-stabs = $(shell echo>&2 '*** BARF ON ME')
732 move-if-change = $(SHELL) $(..)scripts/move-if-change
734 -include $(common-objpfx)sysd-dirs
736 ifeq ($(sysd-dirs-done),t)
737 -include $(common-objpfx)sysd-sorted
738 subdirs = $(sorted-subdirs)
741 ifeq (yes, $(build-shared))
743 # This is a pair of implicit rules to preprocess a file with # comments,
744 # %ifdef et al, based on config.h settings or other %include'd files.
745 # We use chained rules instead of a pipeline here so that we can properly
746 # check the exit status of cpp rather than using its bad output when there
747 # is a preprocessing error. Another rule should depend on the output file
748 # `FOO.v', and along with that `FOO.v.i' should be given dependencies
749 # listing both its input files, and any header files that it may reference
751 %.v.i: $(common-objpfx)config.h
752 sed '/^[ ]*#/d;s/^[ ]*%/#/' $(filter-out FORCE %.h,$^) \
753 | $(CC) -E -undef $(CPPFLAGS) \
754 -DASSEMBLER -x assembler-with-cpp - \
758 sed '/^[ ]*#/d;/^[ ]*$$/d' $< > $@T
761 # Process the shlib-versions file, which tells us what shared library
762 # version numbers to use when we install shared objects on this system.
763 # We need to wait until $(subdirs) is complete.
764 ifeq ($(sysd-sorted-done),t)
765 -include $(common-objpfx)soversions.mk
766 ifndef avoid-generated
767 $(common-objpfx)shlib-versions.v.i: \
768 $(..)shlib-versions $(wildcard $(patsubst %, $(..)%/shlib-versions,\
771 $(common-objpfx)soversions.i: $(common-objpfx)shlib-versions.v
772 default_setname='$(filter-out %_default,$(oldest-abi:%=GLIBC_%))'; \
773 while read conf version setname; do \
774 test -n "$$version" && \
775 test `expr '$(config-machine)-$(config-vendor)-$(config-os)' \
776 : "$$conf"` != 0 || continue; \
777 if test "x$$version" = xDEFAULT; then \
778 default_setname="$$setname"; \
780 $(abi-default_setname) \
781 lib=`echo $$version | sed 's/=.*$$//'`; \
782 if eval test -z "\$${versioned_$${lib}}"; then \
783 eval versioned_$${lib}=yes; \
784 number=`echo $$version | sed "s/^.*=//"`; \
785 echo $$lib $$number $${setname:-$${default_setname}}; \
788 done < $< > $@T; exit 0
790 $(common-objpfx)soversions.mk: $(common-objpfx)soversions.i
791 (while read lib number setname; do \
793 [0-9]*) echo "$$lib.so-version=.$$number"; \
794 echo "all-sonames+=$$lib=$$lib.so\$$($$lib.so-version)";;\
795 *) echo "$$lib.so-version=$$number"; \
796 echo "all-sonames+=$$lib=\$$($$lib.so-version)";;\
799 echo soversions.mk-done = t;) < $< > $@T; exit 0
804 postclean-generated += soversions.mk soversions.i \
805 shlib-versions.v shlib-versions.v.i
807 # Generate the header containing the names of all shared libraries.
808 # We use a stamp file to avoid uncessary recompilations.
809 before-compile += $(common-objpfx)gnu/lib-names.h
810 ifeq ($(soversions.mk-done),t)
811 $(common-objpfx)gnu/lib-names.h: $(common-objpfx)gnu/lib-names.stmp; @:
812 ifneq (,$(findstring aix,$(config-os)))
813 $(common-objpfx)gnu/lib-names.stmp: $(..)sysdeps/unix/sysv/aix/gnu/lib-names.h
814 $(make-target-directory)
815 @rm -f ${@:stmp=T} $@
816 @cp $(..)sysdeps/unix/sysv/aix/gnu/lib-names.h $(common-objpfx)gnu
819 $(common-objpfx)gnu/lib-names.stmp: $(common-objpfx)soversions.mk
820 $(make-target-directory)
821 @rm -f ${@:stmp=T} $@
822 (echo '/* This file is automatically generated.';\
823 echo ' It defines macros to allow user program to find the shared';\
824 echo ' library files which come as part of GNU libc. */';\
825 echo '#ifndef __GNU_LIB_NAMES_H'; \
826 echo '#define __GNU_LIB_NAMES_H 1'; \
828 (libs='$(all-sonames)';\
829 for l in $$libs; do \
830 name=`echo $$l | sed 's/.*=//'`; \
831 upname=`echo $$l | sed 's/=.*//' | \
832 tr 'abcdefghijklmnopqrstuvwxyz-' \
833 'ABCDEFGHIJKLMNOPQRSTUVWXYZ_'`; \
834 upname2=`echo $$name | sed 's/[.]so.*//' | \
835 tr 'abcdefghijklmnopqrstuvwxyz-' \
836 'ABCDEFGHIJKLMNOPQRSTUVWXYZ_'`; \
837 echo "#define $${upname}_SO \"$$name\""; \
838 if test $$upname != $$upname2; then \
839 echo "#define $${upname2}_SO \"$$name\""; \
843 echo '#endif /* gnu/lib-names.h */';) > ${@:stmp=T}
844 $(move-if-change) ${@:stmp=T} ${@:stmp=h}
849 common-generated += gnu/lib-names.h gnu/lib-names.stmp
851 # The name under which the run-time dynamic linker is installed.
852 # We are currently going for the convention that `/lib/ld.so.1'
853 # names the SVR4/ELF ABI-compliant dynamic linker.
854 ifndef rtld-installed-name
856 rtld-installed-name = $(ld.so-version)
858 rtld-installed-name = ld.so.1
862 ifndef rtld-version-installed-name
863 rtld-version-installed-name = ld-$(version).so
871 ifeq ($(build-shared),yes)
872 libdl = $(common-objpfx)dlfcn/libdl.so$(libdl.so-version)
874 libdl = $(common-objpfx)dlfcn/libdl.a
877 ifneq (,$(findstring aix,$(config-os)))
878 ifeq ($(build-shared),yes)
880 libdl = $(common-objpfx)dlfcn/libdl.so$(libdl.so-version)
882 # No libdl without shared libs on AIX
887 # No ELF, no AIX - no libdl, at least for now.
893 # These are the subdirectories containing the library source. The order
894 # is more or less arbitrary. The sorting step will take care of the
895 # dependencies. Only the $(binfmt-subdir) should always be kept at the
897 all-subdirs = csu assert ctype locale intl catgets math setjmp signal \
898 stdlib stdio-common libio malloc string wcsmbs time dirent \
899 grp pwd posix io termios resource misc socket sysvipc gmon \
900 gnulib iconv iconvdata wctype manual shadow po argp \
901 crypt $(add-ons) nss localedata timezone rt conform debug \
902 $(sysdep-subdirs) $(dlfcn) $(binfmt-subdir)
903 all-subdirs := $(filter-out $(sysdep-inhibit-subdirs),$(all-subdirs))
905 # The mach and hurd subdirectories have many generated header files which
906 # much of the rest of the library depends on, so it is best to build them
907 # first (and mach before hurd, at that). The before-compile additions in
908 # sysdeps/{mach,hurd}/Makefile should make it reliably work for these files
909 # not to exist when making in other directories, but it will be slower that
910 # way with more somewhat expensive `make' invocations.
911 subdirs := $(filter mach,$(subdirs)) $(filter hurd,$(subdirs)) \
912 $(filter-out mach hurd,$(subdirs))
914 ifndef avoid-generated
915 all-Subdirs-files = $(wildcard $(config-sysdirs:%=$(..)%/Subdirs))
916 $(common-objpfx)sysd-dirs: $(common-objpfx)config.make $(all-Subdirs-files)
917 $(AWK) 'BEGIN { subdirs = ""; inhibit = "" }; \
919 /^[^-]/ { subdirs = subdirs " " $$0 }; \
920 /^-/ { inhibit = inhibit " " substr($$0, 2) }; \
921 END { printf "sysdep-subdirs =%s\n", subdirs; \
922 printf "sysdep-inhibit-subdirs =%s\n", inhibit; \
923 print "sysd-dirs-done = t" }' \
924 $(patsubst $<,/dev/null,$^) > $@-tmp
927 all-Depend-files = $(wildcard $(..)*/Depend)
928 $(common-objpfx)sysd-sorted: $(..)scripts/gen-sorted.awk $(all-Depend-files) \
929 $(common-objpfx)sysd-dirs $(..)Makeconfig
930 { { dirs='$(patsubst $(..)%/Depend,$(..)%,$(filter %/Depend,$^))';\
931 for d in $$dirs; do \
933 echo "depend $$d $$on"; \
936 for f in $(all-subdirs); do \
939 } | $(AWK) -f $< && \
940 echo sysd-sorted-done = t; \
945 # Let sysdeps/ subdirs contain a Makeconfig fragment for us to include here.
946 sysdep-makeconfigs := $(wildcard $(patsubst %,$(..)%/Makeconfig,\
947 $(config-sysdirs) $(add-ons)))
949 ifneq (,$(sysdep-makeconfigs))
950 include $(sysdep-makeconfigs)
954 endif # Makeconfig not yet included