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8d6f1731 | 1 | # Copyright (C) 1991-1999,2000 Free Software Foundation, Inc. |
28f540f4 RM |
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 Library General Public License as | |
6 | # published by the Free Software Foundation; either version 2 of the | |
7 | # 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 | # Library General Public License for more details. | |
13 | ||
14 | # You should have received a copy of the GNU Library General Public | |
0c5ecdc4 UD |
15 | # License along with the GNU C Library; see the file COPYING.LIB. If not, |
16 | # write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
17 | # Boston, MA 02111-1307, USA. | |
28f540f4 RM |
18 | |
19 | # | |
20 | # Makefile configuration options for the GNU C library. | |
21 | # | |
22 | ifneq (,) | |
23 | This makefile requires GNU Make. | |
24 | endif | |
25 | ||
3e5f5557 UD |
26 | all: # Make this the default goal |
27 | ||
28f540f4 RM |
28 | ifneq "$(origin +included-Makeconfig)" "file" |
29 | ||
30 | +included-Makeconfig := yes | |
31 | ||
32 | ifdef subdir | |
33 | .. := ../ | |
34 | endif | |
35 | ||
36 | # If config.make exists, the source directory was configured, | |
37 | # so don't try to be clever and find another directory to build in. | |
38 | ifneq (,$(wildcard $(..)config.make)) | |
39 | ARCH = | |
40 | machine = | |
41 | else # Not configured. | |
42 | ifndef ARCH | |
43 | ifdef machine | |
44 | ARCH = $(machine) | |
45 | endif # machine | |
46 | endif # ARCH | |
47 | endif # config.make | |
48 | ||
49 | # Directory for object files and libc.a. If this is not defined, the | |
50 | # object files live in the subdirectories where their sources live, and | |
51 | # libc.a lives in the parent directory (this probably doesn't work any | |
52 | # more). | |
53 | ifdef ARCH | |
54 | ifeq ($(filter /%,$(ARCH)),) | |
55 | objdir := $(..)$(ARCH) | |
56 | else | |
57 | objdir = $(ARCH) | |
58 | endif | |
59 | endif | |
60 | ||
094bacdb | 61 | # $(common-objdir) is the place to put objects and |
28f540f4 RM |
62 | # such that are not specific to a single subdir. |
63 | ifdef objdir | |
6e953631 UD |
64 | objpfx := $(patsubst %//,%/,$(objdir)/$(subdir)/) |
65 | common-objpfx = $(objdir)/ | |
28f540f4 RM |
66 | common-objdir = $(objdir) |
67 | else | |
68 | objpfx := | |
69 | ifdef .. | |
70 | common-objpfx = $(..) | |
71 | common-objdir = .. | |
72 | else | |
73 | # This is a kludge. make wizards might grok. | |
74 | common-objpfx = sysdeps/../ | |
75 | common-objdir = . | |
76 | endif | |
77 | endif | |
78 | ||
f332db02 RM |
79 | # Root of the sysdeps tree. |
80 | sysdep_dir := $(..)sysdeps | |
81 | export sysdep_dir := $(sysdep_dir) | |
82 | ||
28f540f4 RM |
83 | # Get the values defined by options to `configure'. |
84 | include $(common-objpfx)config.make | |
85 | ||
0501d603 UD |
86 | # We have a special subdir for each binary format. |
87 | # For now, only ELF is fully supported. | |
88 | ifeq ($(elf),yes) | |
89 | binfmt-subdir = elf | |
90 | else | |
0a54e401 UD |
91 | # This is probably better than nothing. |
92 | binfmt-subdir = aout | |
0501d603 UD |
93 | endif |
94 | ||
57ba7bb4 | 95 | # Complete path to sysdep dirs. |
0a55a284 | 96 | export full_config_sysdirs := $(addprefix $(..),$(config-sysdirs)) |
57ba7bb4 | 97 | |
273d56ce RM |
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. | |
19361cb7 UD |
103 | $(common-objpfx)config.make: $(common-objpfx)config.status \ |
104 | $(..)config.make.in $(..)config.h.in | |
273d56ce RM |
105 | cd $(<D); $(SHELL) $(<F) |
106 | ||
7da3079b RM |
107 | # Find all the sysdeps configure fragments, to make sure we re-run |
108 | # configure when any of them changes. | |
5290baf0 | 109 | $(common-objpfx)config.status: $(..)version.h $(..)configure \ |
0a55a284 | 110 | $(foreach dir,$(full_config_sysdirs),\ |
e50ec9f9 | 111 | $(wildcard \ |
57ba7bb4 | 112 | $(dir)/Implies) \ |
f332db02 RM |
113 | $(patsubst %.in,%,\ |
114 | $(firstword $(wildcard \ | |
57ba7bb4 | 115 | $(addprefix $(dir)/,configure configure.in))))) |
273d56ce RM |
116 | @cd $(@D); if test -f $(@F); then exec $(SHELL) $(@F) --recheck; else \ |
117 | echo The GNU C library has not been configured. >&2; \ | |
118 | echo Run \`configure\' to configure it before building. >&2; \ | |
119 | echo Try \`configure --help\' for more details. >&2; \ | |
120 | exit 1; fi | |
28f540f4 | 121 | |
74015205 UD |
122 | # We don't want CPPFLAGS to be exported to the command running configure. |
123 | unexport CPPFLAGS | |
124 | ||
28f540f4 RM |
125 | # Get the user's configuration parameters. |
126 | ifneq ($(wildcard $(..)configparms),) | |
127 | include $(..)configparms | |
128 | endif | |
129 | ifneq ($(objpfx),) | |
6e953631 UD |
130 | ifneq ($(wildcard $(common-objpfx)configparms),) |
131 | include $(common-objpfx)configparms | |
28f540f4 RM |
132 | endif |
133 | endif | |
28f540f4 RM |
134 | \f |
135 | #### | |
136 | #### These are the configuration variables. You can define values for | |
137 | #### the variables below in the file `configparms'. | |
138 | #### Do NOT edit this file. | |
139 | #### | |
140 | ||
141 | ||
deab9dea RM |
142 | # Set this to either `stdio' or `libio', to compile in either GNU stdio |
143 | # or GNU libio. | |
144 | ifndef stdio | |
145 | stdio = stdio | |
146 | endif | |
147 | ||
28f540f4 | 148 | # Common prefix for machine-independent installation directories. |
487253ea | 149 | ifeq ($(origin prefix),undefined) # ifndef would override explicit empty value. |
28f540f4 RM |
150 | prefix = /usr/local |
151 | endif | |
152 | ||
0413b54c UD |
153 | # Decide whether we shall build the programs or not. We always do this |
154 | # unless the user tells us (in configparms) or we are building for a | |
155 | # standalone target. | |
156 | ifndef build-programs | |
157 | ifneq ($(config-os),none) | |
158 | build-programs=yes | |
159 | else | |
160 | build-programs=no | |
161 | endif | |
162 | endif | |
163 | ||
28f540f4 | 164 | # Common prefix for machine-dependent installation directories. |
487253ea | 165 | ifeq ($(origin exec_prefix),undefined) |
28f540f4 RM |
166 | exec_prefix = $(prefix) |
167 | endif | |
168 | ||
169 | # Where to install the library and object files. | |
170 | ifndef libdir | |
171 | libdir = $(exec_prefix)/lib | |
172 | endif | |
8d57beea | 173 | inst_libdir = $(install_root)$(libdir) |
28f540f4 | 174 | |
094bacdb RM |
175 | # Where to install the shared library and dynamic linker. |
176 | ifndef slibdir | |
177 | slibdir = $(exec_prefix)/lib | |
178 | endif | |
8d57beea | 179 | inst_slibdir = $(install_root)$(slibdir) |
094bacdb | 180 | |
28f540f4 RM |
181 | # Prefix to put on files installed in $(libdir). For libraries `libNAME.a', |
182 | # the prefix is spliced between `lib' and the name, so the linker switch | |
183 | # `-l$(libprefix)NAME' finds the library; for other files the prefix is | |
184 | # just prepended to the whole file name. | |
487253ea | 185 | ifeq ($(origin libprefix),undefined) |
28f540f4 RM |
186 | libprefix = |
187 | endif | |
188 | ||
189 | # Where to install the header files. | |
190 | ifndef includedir | |
191 | includedir = $(exec_prefix)/include | |
192 | endif | |
8d57beea | 193 | inst_includedir = $(install_root)$(includedir) |
28f540f4 | 194 | |
28f540f4 | 195 | # Where to install machine-independent data files. |
a2fe9c76 | 196 | # These are the timezone database, and the locale database. |
28f540f4 RM |
197 | ifndef datadir |
198 | datadir = $(prefix)/share | |
199 | endif | |
8d57beea | 200 | inst_datadir = $(install_root)$(datadir) |
28f540f4 RM |
201 | |
202 | # Where to install the timezone data files (which are machine-independent). | |
203 | ifndef zonedir | |
204 | zonedir = $(datadir)/zoneinfo | |
205 | endif | |
8d57beea | 206 | inst_zonedir = $(install_root)$(zonedir) |
28f540f4 | 207 | |
4a33c2f5 | 208 | # Where to install the locale files. |
a2fe9c76 | 209 | ifndef localedir |
4a33c2f5 | 210 | localedir = $(libdir)/locale |
a2fe9c76 | 211 | endif |
8d57beea | 212 | inst_localedir = $(install_root)$(localedir) |
a2fe9c76 | 213 | |
4a33c2f5 UD |
214 | # Where to install the message catalog data files (which are |
215 | # machine-independent). | |
216 | ifndef msgcatdir | |
217 | msgcatdir = $(datadir)/locale | |
218 | endif | |
219 | inst_msgcatdir = $(install_root)$(msgcatdir) | |
220 | ||
3ec41e03 | 221 | # Where to install the locale charmap source files. |
19bc17a9 RM |
222 | ifndef i18ndir |
223 | i18ndir = $(datadir)/i18n | |
a2fe9c76 | 224 | endif |
8d57beea | 225 | inst_i18ndir = $(install_root)$(i18ndir) |
a2fe9c76 | 226 | |
6973fc01 UD |
227 | # Where to install the shared object for charset transformation. |
228 | ifndef gconvdir | |
229 | gconvdir = $(libdir)/gconv | |
230 | endif | |
231 | inst_gconvdir = $(install_root)$(gconvdir) | |
232 | ||
28f540f4 RM |
233 | # Where to install programs. |
234 | ifndef bindir | |
235 | bindir = $(exec_prefix)/bin | |
236 | endif | |
8d57beea | 237 | inst_bindir = $(install_root)$(bindir) |
28f540f4 | 238 | |
7f0ff1b0 UD |
239 | # Where to install internal programs. |
240 | ifndef libexecdir | |
241 | libexecdir = $(exec_prefix)/libexec | |
242 | endif | |
243 | inst_libexecdir = $(install_root)$(libexecdir) | |
244 | ||
28f540f4 | 245 | # Where to install administrative programs. |
1ef32c3d UD |
246 | ifndef rootsbindir |
247 | rootsbindir = $(exec_prefix)/sbin | |
248 | endif | |
8d57beea | 249 | inst_rootsbindir = $(install_root)$(rootsbindir) |
1ef32c3d | 250 | |
28f540f4 RM |
251 | ifndef sbindir |
252 | sbindir = $(exec_prefix)/sbin | |
253 | endif | |
8d57beea | 254 | inst_sbindir = $(install_root)$(sbindir) |
28f540f4 RM |
255 | |
256 | # Where to install the Info files. | |
257 | ifndef infodir | |
258 | infodir = $(prefix)/info | |
259 | endif | |
8d57beea | 260 | inst_infodir = $(install_root)$(infodir) |
28f540f4 RM |
261 | |
262 | # Where to install default configuration files. These include the local | |
263 | # timezone specification and network data base files. | |
264 | ifndef sysconfdir | |
265 | sysconfdir = $(prefix)/etc | |
266 | endif | |
8d57beea | 267 | inst_sysconfdir = $(install_root)$(sysconfdir) |
28f540f4 RM |
268 | |
269 | # What timezone should be the installed default (e.g., US/Eastern). | |
270 | # Run `make -C time echo-zonenames' to see a list of available zone names. | |
271 | # The local timezone can be changed with `zic -l TIMEZONE' at any time. | |
272 | ifndef localtime | |
273 | localtime = Factory | |
274 | endif | |
275 | ||
276 | # Where to install the "localtime" timezone file; this is the file whose | |
277 | # contents $(localtime) specifies. If this is a relative pathname, it is | |
278 | # relative to $(zonedir). It is a good idea to put this somewhere | |
279 | # other than there, so the zoneinfo directory contains only universal data, | |
280 | # localizing the configuration data elsewhere. | |
281 | ifndef localtime-file | |
0d8733c4 UD |
282 | localtime-file = $(sysconfdir)/localtime |
283 | inst_localtime-file = $(install_root)$(localtime-file) | |
28f540f4 RM |
284 | endif |
285 | ||
59dd8641 RM |
286 | # What to use for leap second specifications in compiling the default |
287 | # timezone files. Set this to `/dev/null' for no leap second handling as | |
288 | # 1003.1 requires, or to `leapseconds' for proper leap second handling. | |
289 | # Both zone flavors are always available as `posix/ZONE' and `right/ZONE'. | |
290 | # This variable determines the default: if it's `/dev/null', | |
291 | # ZONE==posix/ZONE; if it's `leapseconds', ZONE==right/ZONE. | |
292 | ifndef leapseconds | |
293 | leapseconds = /dev/null | |
294 | endif | |
295 | ||
28f540f4 RM |
296 | # What timezone's DST rules should be used when a POSIX-style TZ |
297 | # environment variable doesn't specify any rules. For 1003.1 compliance | |
298 | # this timezone must use rules that are as U.S. federal law defines DST. | |
299 | # Run `make -C time echo-zonenames' to see a list of available zone names. | |
300 | # This setting can be changed with `zic -p TIMEZONE' at any time. | |
301 | # If you want POSIX.1 compatibility, use `America/New_York'. | |
302 | ifndef posixrules | |
303 | posixrules = America/New_York | |
304 | endif | |
305 | ||
306 | # Where to install the "posixrules" timezone file; this is file | |
307 | # whose contents $(posixrules) specifies. If this is a relative | |
308 | # pathname, it is relative to $(zonedir). | |
309 | ifndef posixrules-file | |
310 | posixrules-file = posixrules | |
311 | endif | |
312 | ||
313 | ||
314 | # Directory where your system's native header files live. | |
315 | # This is used on Unix systems to generate some GNU libc header files. | |
316 | ifndef sysincludedir | |
317 | sysincludedir = /usr/include | |
318 | endif | |
319 | ||
320 | ||
321 | # Commands to install files. | |
322 | ifndef INSTALL_DATA | |
323 | INSTALL_DATA = $(INSTALL) -m 644 | |
324 | endif | |
325 | ifndef INSTALL_PROGRAM | |
326 | INSTALL_PROGRAM = $(INSTALL) | |
327 | endif | |
328 | ifndef INSTALL | |
329 | INSTALL = install | |
330 | endif | |
331 | ||
332 | ||
333 | # The name of the C compiler. | |
334 | # If you've got GCC, and it works, use it. | |
335 | ifeq ($(origin CC),default) | |
336 | CC := gcc | |
337 | endif | |
338 | ||
339 | # The name of the C compiler to use for compilations of programs to run on | |
340 | # the host that is building the library. If you set CC to a | |
341 | # cross-compiler, you must set this to the normal compiler. | |
342 | ifndef BUILD_CC | |
343 | BUILD_CC = $(CC) | |
344 | endif | |
345 | ||
346 | # Default flags to pass the C compiler. | |
347 | ifndef default_cflags | |
1d5c2feb UD |
348 | ifeq ($(release),stable) |
349 | default_cflags := -g -O2 | |
350 | else | |
a8922de8 | 351 | default_cflags := -g -O |
28f540f4 | 352 | endif |
1d5c2feb | 353 | endif |
28f540f4 RM |
354 | |
355 | # Flags to pass the C compiler when assembling preprocessed assembly code | |
356 | # (`.S' files). On some systems the assembler doesn't understand the `#' line | |
357 | # directives the preprocessor produces. If you have troubling compiling | |
358 | # assembly code, try using -P here to suppress these directives. | |
359 | ifndef asm-CPPFLAGS | |
360 | asm-CPPFLAGS = | |
361 | endif | |
362 | ||
9a0a462c UD |
363 | # ELF always supports init/fini sections |
364 | ifeq ($(elf),yes) | |
365 | have-initfini = yes | |
366 | endif | |
367 | ||
779ae82e | 368 | # Installed name of the startup code. |
9a0a462c UD |
369 | ifneq ($(have-initfini),yes) |
370 | # When not having init/fini, there is just one startfile, called crt0.o. | |
779ae82e UD |
371 | start-installed-name = crt0.o |
372 | else | |
9a0a462c | 373 | # On systems having init/fini, crt0.o is called crt1.o, and there are |
779ae82e UD |
374 | # some additional bizarre files. |
375 | start-installed-name = crt1.o | |
779ae82e | 376 | endif |
af09bfb5 RM |
377 | # On systems that do not need a special startfile for statically linked |
378 | # binaries, simply set it to the normal name. | |
379 | ifndef static-start-installed-name | |
380 | static-start-installed-name = $(start-installed-name) | |
381 | endif | |
779ae82e | 382 | |
28f540f4 RM |
383 | # Command for linking programs with the C library. |
384 | ifndef +link | |
8e3cc80f | 385 | +link = $(CC) -nostdlib -nostartfiles -o $@ \ |
482eec0d | 386 | $(sysdep-LDFLAGS) $(config-LDFLAGS) $(LDFLAGS) $(LDFLAGS-$(@F)) \ |
779ae82e UD |
387 | $(addprefix $(csu-objpfx),$(start-installed-name)) \ |
388 | $(+preinit) $(+prector) \ | |
389 | $(filter-out $(addprefix $(csu-objpfx),start.o \ | |
390 | $(start-installed-name))\ | |
391 | $(+preinit) $(link-extra-libs) \ | |
392 | $(common-objpfx)libc% $(+postinit),$^) \ | |
5ae9d168 | 393 | $(link-extra-libs) $(link-libc) $(+postctor) $(+postinit) |
28f540f4 | 394 | endif |
e1586792 UD |
395 | # Command for statically linking programs with the C library. |
396 | ifndef +link-static | |
397 | +link-static = $(CC) -nostdlib -nostartfiles -static -o $@ \ | |
398 | $(sysdep-LDFLAGS) $(LDFLAGS) \ | |
af09bfb5 | 399 | $(addprefix $(csu-objpfx),$(static-start-installed-name)) \ |
e1586792 UD |
400 | $(+preinit) $(+prector) \ |
401 | $(filter-out $(addprefix $(csu-objpfx),start.o \ | |
402 | $(start-installed-name))\ | |
403 | $(+preinit) $(link-extra-libs-static) \ | |
404 | $(common-objpfx)libc% $(+postinit),$^) \ | |
405 | $(link-extra-libs-static) $(link-libc-static) $(+postctor) $(+postinit) | |
406 | endif | |
ac556388 GM |
407 | # Command for statically linking bounded-pointer programs with the C library. |
408 | ifndef +link-bounded | |
409 | +link-bounded = $(CC) -nostdlib -nostartfiles -static -fbounded-pointers -o $@ \ | |
410 | $(sysdep-LDFLAGS) $(LDFLAGS) \ | |
411 | $(addprefix $(csu-objpfx),b$(static-start-installed-name)) \ | |
412 | $(+preinit) $(+prector) \ | |
4362aba5 | 413 | $(filter-out $(addprefix $(csu-objpfx),start.ob \ |
ac556388 GM |
414 | $(start-installed-name))\ |
415 | $(+preinit) $(link-extra-libs-bounded) \ | |
416 | $(common-objpfx)libc% $(+postinit),$^) \ | |
417 | $(link-extra-libs-bounded) $(link-libc-bounded) $(+postctor) $(+postinit) | |
418 | endif | |
b122c703 RM |
419 | ifndef config-LDFLAGS |
420 | ifeq (yes,$(build-shared)) | |
094bacdb | 421 | config-LDFLAGS = -Wl,-dynamic-linker=$(slibdir)/$(rtld-installed-name) |
b122c703 RM |
422 | endif |
423 | endif | |
3fe9de0d RM |
424 | ifndef link-libc |
425 | ifeq (yes,$(build-shared)) | |
aa1075ea RM |
426 | # We need the versioned name of libc.so in the deps of $(others) et al |
427 | # so that the symlink to libc.so is created before anything tries to | |
428 | # run the linked programs. | |
4d6acc61 | 429 | link-libc = -Wl,-rpath-link=$(rpath-link) \ |
aa1075ea | 430 | $(common-objpfx)libc.so$(libc.so-version) \ |
a44d2393 | 431 | $(common-objpfx)$(patsubst %,$(libtype.oS),c) $(gnulib) |
4d6acc61 | 432 | # This is how to find at build-time things that will be installed there. |
b11f5954 | 433 | rpath-dirs = math elf dlfcn nss nis rt resolv crypt |
e72bfd87 UD |
434 | rpath-link = \ |
435 | $(common-objdir):$(subst $(empty) ,:,$(patsubst ../$(subdir),.,$(rpath-dirs:%=$(common-objpfx)%))) | |
47707456 | 436 | elfobjdir := $(patsubst ../$(subdir),.,$(common-objpfx)elf) |
3fe9de0d | 437 | else |
ce85d65b UD |
438 | nssobjdir := $(patsubst ../$(subdir),.,$(common-objpfx)nss) |
439 | resolvobjdir := $(patsubst ../$(subdir),.,$(common-objpfx)resolv) | |
4ac5087b | 440 | link-libc = $(common-objpfx)libc.a $(otherlibs) $(gnulib) $(common-objpfx)libc.a $(gnulib) |
3fe9de0d RM |
441 | endif |
442 | endif | |
900bec85 | 443 | |
f01010de UD |
444 | # Choose the default search path for the dynamic linker based on |
445 | # where we will install libraries. | |
446 | ifneq ($(libdir),$(slibdir)) | |
447 | default-rpath = $(slibdir):$(libdir) | |
448 | else | |
449 | default-rpath = $(libdir) | |
450 | endif | |
451 | ||
57ba7bb4 UD |
452 | ifndef link-extra-libs |
453 | ifeq (yes,$(build-shared)) | |
c57abfa7 UD |
454 | ifneq ($(common-objpfx),$(objpfx)) |
455 | link-extra-libs = $(foreach lib,$(LDLIBS-$(@F)),\ | |
456 | $(wildcard $(common-objpfx)$(lib).so$($(notdir $(lib)).so-version) \ | |
457 | $(objpfx)$(lib).so$($(notdir $(lib)).so-version))) | |
458 | else | |
57ba7bb4 | 459 | link-extra-libs = $(foreach lib,$(LDLIBS-$(@F)),$(common-objpfx)$(lib).so$($(notdir $(lib)).so-version)) |
c57abfa7 | 460 | endif |
57ba7bb4 UD |
461 | else |
462 | link-extra-libs = $(foreach lib,$(LDLIBS-$(@F)),$(common-objpfx)$(lib).a) | |
463 | endif | |
464 | endif | |
e1586792 UD |
465 | |
466 | # The static libraries. | |
66000494 | 467 | ifeq (yes,$(build-static)) |
e1586792 UD |
468 | link-libc-static = $(common-objpfx)libc.a $(gnulib) $(common-objpfx)libc.a |
469 | link-extra-libs-static = $(foreach lib,$(LDLIBS-$(@F)),$(common-objpfx)$(lib).a) | |
66000494 UD |
470 | else |
471 | ifeq (yes,$(build-shared)) | |
472 | # We can try to link the programs with lib*_pic.a... | |
a94b2ac0 | 473 | link-libc-static = $(gnulib) $(common-objpfx)libc_pic.a |
66000494 UD |
474 | link-extra-libs-static = $(link-extra-libs) |
475 | endif | |
476 | endif | |
ac556388 | 477 | link-libc-bounded = $(common-objpfx)libc_b.a $(gnulib) $(common-objpfx)libc_b.a |
e64911d1 | 478 | link-extra-libs-bounded = $(foreach lib,$(LDLIBS-$(@F:%-bp=%)),$(common-objpfx)$(lib)_b.a) |
e1586792 | 479 | |
28f540f4 RM |
480 | ifndef gnulib |
481 | gnulib := -lgcc | |
482 | endif | |
96f873b9 | 483 | ifeq ($(elf),yes) |
e75154a6 RM |
484 | +preinit = $(addprefix $(csu-objpfx),crti.o) |
485 | +postinit = $(addprefix $(csu-objpfx),crtn.o) | |
5ae9d168 UD |
486 | +prector = `$(CC) --print-file-name=crtbegin.o` |
487 | +postctor = `$(CC) --print-file-name=crtend.o` | |
66715f83 | 488 | +interp = $(addprefix $(elf-objpfx),interp.os) |
96f873b9 | 489 | endif |
6e953631 UD |
490 | csu-objpfx = $(common-objpfx)csu/ |
491 | elf-objpfx = $(common-objpfx)elf/ | |
28f540f4 | 492 | |
03a75825 RM |
493 | # How to run a program we just linked with our library. |
494 | # The program binary is assumed to be $(word 2,$^). | |
495 | built-program-file = $(dir $(word 2,$^))$(notdir $(word 2,$^)) | |
9f835f5f | 496 | ifeq (yes,$(build-shared)) |
196980f5 | 497 | comma = , |
11336c16 UD |
498 | sysdep-library-path = \ |
499 | $(subst $(empty) ,:,$(strip $(patsubst -Wl$(comma)-rpath-link=%, %,\ | |
500 | $(filter -Wl$(comma)-rpath-link=%,\ | |
501 | $(sysdep-LDFLAGS))))) | |
85857f93 UD |
502 | run-program-prefix = $(if $(findstring $(notdir $(built-program-file)), $(tests-static)),, \ |
503 | $(elf-objpfx)$(rtld-installed-name) \ | |
504 | --library-path $(rpath-link)$(patsubst %,:%,$(sysdep-library-path))) | |
8658ceda UD |
505 | else |
506 | run-program-prefix = | |
507 | endif | |
ac556388 GM |
508 | # Never use $(run-program-prefix) for the statically-linked %-bp test programs |
509 | built-program-cmd = $(patsubst %,$(run-program-prefix),\ | |
510 | $(filter-out %-bp,$(built-program-file))) \ | |
511 | $(built-program-file) | |
03a75825 | 512 | |
28f540f4 RM |
513 | ifndef LD |
514 | LD := ld -X | |
515 | endif | |
516 | ||
517 | ifndef RANLIB | |
518 | RANLIB = ranlib | |
519 | endif | |
520 | ||
521 | # Extra flags to pass to GCC. | |
6cc7d725 UD |
522 | ifeq ($(all-warnings),yes) |
523 | +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 | |
524 | else | |
6796bc80 | 525 | +gccwarn := -Wall -Wwrite-strings -Winline -Wstrict-prototypes |
6cc7d725 | 526 | endif |
28f540f4 RM |
527 | |
528 | # This is the program that generates makefile | |
529 | # dependencies from C source files. | |
530 | ifndef +mkdep | |
531 | +mkdep = $(CC) -M | |
532 | endif | |
533 | ||
534 | # The program that makes Emacs-style TAGS files. | |
78759725 | 535 | ETAGS := etags |
28f540f4 RM |
536 | |
537 | # The `m4' macro processor; this is used by sysdeps/sparc/Makefile (and | |
538 | # perhaps others) to preprocess assembly code in some cases. | |
539 | M4 = m4 | |
540 | ||
73237de3 UD |
541 | # To force installation of files even if they are older than the |
542 | # installed files. This variable is included in the dependency list | |
543 | # of all installation targets. | |
544 | ifeq ($(force-install),yes) | |
545 | +force = force-install | |
546 | else | |
547 | +force = | |
548 | endif | |
549 | ||
28f540f4 RM |
550 | #### |
551 | #### End of configuration variables. | |
552 | #### | |
553 | \f | |
554 | # This tells some versions of GNU make before 3.63 not to export all variables. | |
555 | .NOEXPORT: | |
556 | ||
557 | # We want to echo the commands we're running without | |
6d52618b | 558 | # umpteen zillion filenames along with it (we use `...' instead) |
28f540f4 RM |
559 | # but we don't want this echoing done when the user has said |
560 | # he doesn't want to see commands echoed by using -s. | |
561 | ifneq "$(findstring s,$(MAKEFLAGS))" "" # if -s | |
562 | +cmdecho := echo >/dev/null | |
563 | else # not -s | |
564 | +cmdecho := echo | |
565 | endif # -s | |
566 | ||
567 | # These are the flags given to the compiler to tell | |
568 | # it what sort of optimization and/or debugging output to do. | |
569 | ifndef +cflags | |
570 | # If `CFLAGS' was defined, use that. | |
571 | ifdef CFLAGS | |
572 | +cflags := $(filter-out -I%,$(CFLAGS)) | |
573 | endif # CFLAGS | |
574 | endif # +cflags | |
575 | ||
fd26970f | 576 | # If none of the above worked, default to "-g -O". |
28f540f4 RM |
577 | ifeq "$(strip $(+cflags))" "" |
578 | +cflags := $(default_cflags) | |
579 | endif # $(+cflags) == "" | |
580 | ||
28f540f4 RM |
581 | +cflags := $(+cflags) $(+gccwarn) |
582 | +gcc-nowarn := -w | |
28f540f4 RM |
583 | |
584 | # Don't duplicate options if we inherited variables from the parent. | |
585 | +cflags := $(sort $(+cflags)) | |
586 | ||
587 | ||
588 | # These are flags given to the C compiler to tell it to look for include | |
762a2918 UD |
589 | # files (including ones given in angle brackets) in the current directory, |
590 | # in the parent library source directory and in the include directory. | |
28f540f4 | 591 | # `+sysdep-includes' will be defined by Makerules. |
bdbf022d UD |
592 | +includes = -I$(..)include -I. \ |
593 | $(patsubst %/,-I%,$(objpfx)) $(patsubst %/,-I%,$(..)) \ | |
594 | $($(stdio)-include) $(includes) \ | |
dbe7a0f5 | 595 | $(+sysdep-includes) $(last-includes) $(sysincludes) |
28f540f4 | 596 | |
96aa2d94 | 597 | # Since libio has several internal header files, we use a -I instead |
762a2918 | 598 | # of many little headers in the include directory. |
96aa2d94 | 599 | libio-include = -I$(..)libio |
28f540f4 RM |
600 | |
601 | # These are the variables that the implicit compilation rules use. | |
3387a425 | 602 | CPPFLAGS = $($(subdir)-CPPFLAGS) $(+includes) $(defines) \ |
ae8b36f7 | 603 | -include $(..)include/libc-symbols.h $(sysdep-CPPFLAGS) \ |
fdacb17d | 604 | $(CPPFLAGS-$(suffix $@)) $(CPPFLAGS-$(<F)) $(CPPFLAGS-$(@F)) |
14e9dd67 UD |
605 | override CFLAGS = $(filter-out %frame-pointer,$(+cflags)) $(sysdep-CFLAGS) \ |
606 | $(CFLAGS-$(suffix $@)) $(CFLAGS-$(<F)) $(CFLAGS-$(@F)) | |
28f540f4 | 607 | |
cc3fa755 UD |
608 | # If everything is compiled with -fPIC (implicitly) we must tell this by |
609 | # defining the PIC symbol. | |
610 | ifeq (yes,$(build-pic-default)) | |
611 | pic-default = -DPIC | |
612 | endif | |
613 | ||
f0bf9cb9 RM |
614 | # Enable object files for different versions of the library. |
615 | # Various things use $(object-suffixes) to know what all to make. | |
616 | # The compilation rules use $(CPPFLAGS-${SUFFIX}) and $(CFLAGS-${SUFFIX}) | |
617 | # to pass different flags for each flavor. | |
91641c65 | 618 | libtypes = $(foreach o,$(object-suffixes-for-libc),$(libtype$o)) |
a35cb74d | 619 | all-object-suffixes := .o .os .op .og .ob .oS |
650425ce | 620 | object-suffixes := |
cc3fa755 | 621 | CPPFLAGS-.o = $(pic-default) |
14e9dd67 | 622 | CFLAGS-.o = $(filter %frame-pointer,$(+cflags)) |
66000494 | 623 | ifeq (yes,$(build-static)) |
f0bf9cb9 | 624 | libtype.o := lib%.a |
650425ce UD |
625 | object-suffixes += .o |
626 | endif | |
f0bf9cb9 RM |
627 | ifeq (yes,$(build-shared)) |
628 | # Under --enable-shared, we will build a shared library of PIC objects. | |
40a55d20 UD |
629 | # The PIC object files are named foo.os. |
630 | object-suffixes += .os | |
b5567b2a | 631 | CPPFLAGS-.os = -DPIC -DSHARED |
14e9dd67 | 632 | CFLAGS-.os = $(filter %frame-pointer,$(+cflags)) $(pic-ccflag) |
40a55d20 | 633 | libtype.os := lib%_pic.a |
26b4d766 UD |
634 | # This can be changed by a sysdep makefile |
635 | pic-ccflag = -fPIC | |
f0bf9cb9 RM |
636 | endif |
637 | ifeq (yes,$(build-profile)) | |
638 | # Under --enable-profile, we will build a static library of profiled objects. | |
40a55d20 UD |
639 | # The profiled object files are named foo.op. |
640 | object-suffixes += .op | |
cc3fa755 | 641 | CPPFLAGS-.op = -DPROF $(pic-default) |
40a55d20 UD |
642 | CFLAGS-.op = -pg |
643 | libtype.op = lib%_p.a | |
f0bf9cb9 RM |
644 | endif |
645 | ifeq (yes,$(build-omitfp)) | |
ab95290c | 646 | # Under --enable-omitfp, we build the library optimized without |
f0bf9cb9 | 647 | # debugging information using -fomit-frame-pointer, and build an extra |
40a55d20 UD |
648 | # library with debugging information. The debuggable objects are named foo.og. |
649 | object-suffixes += .og | |
cc3fa755 | 650 | CPPFLAGS-.og = $(pic-default) |
40a55d20 | 651 | CFLAGS-.og = -g |
14e9dd67 UD |
652 | CFLAGS-.o = $(filter %frame-pointer,$(+cflags)) -g0 -O99 -fomit-frame-pointer -D__USE_STRING_INLINES |
653 | CFLAGS-.os += -g0 -O99 -fomit-frame-pointer -D__USE_STRING_INLINES | |
40a55d20 | 654 | libtype.og = lib%_g.a |
f0bf9cb9 | 655 | endif |
ab95290c UD |
656 | |
657 | bppfx = BP- | |
5a97622d UD |
658 | ifeq (yes,$(build-bounded)) |
659 | # Under --enable-bounded, we build the library with `-fbounded-pointers -g' | |
40a55d20 | 660 | # to runtime bounds checking. The bounded-pointer objects are named foo.ob. |
58ff985d GM |
661 | # We disable sibling-call optimizations so that stack traces will be complete |
662 | # and thus aid debugging, since after all, BPs are a debugging tool. | |
40a55d20 | 663 | object-suffixes += .ob |
ab95290c | 664 | CPPFLAGS-.ob = -fbounded-pointers $(pic-default) |
e64911d1 | 665 | CFLAGS-.ob = -g -O2 -fno-optimize-sibling-calls -fno-strict-aliasing |
40a55d20 | 666 | libtype.ob = lib%_b.a |
5a97622d | 667 | endif |
f0bf9cb9 | 668 | |
9afc8a59 UD |
669 | object-suffixes-for-libc := $(object-suffixes) |
670 | ||
671 | ifeq (yes,$(build-shared)) | |
672 | # Build special library that contains the static-only routines for libc. | |
673 | object-suffixes-for-libc += .oS | |
674 | ||
675 | # Must build the routines as PIC, though, because they can end up in (users') | |
676 | # shared objects. We don't want to use CFLAGS-os because users may, for | |
677 | # example, make that processor-specific. | |
678 | CFLAGS-.oS = $(CFLAGS-.o) $(pic-ccflag) | |
6ca96fe2 | 679 | CPPFLAGS-.oS = $(CPPFLAGS-.o) -DPIC |
9afc8a59 UD |
680 | libtype.oS = lib%_nonshared.a |
681 | endif | |
682 | ||
683 | ||
28f540f4 RM |
684 | +gnu-stabs = $(shell echo>&2 '*** BARF ON ME') |
685 | ||
96bda0ea RM |
686 | ifndef BUILD_CC |
687 | BUILD_CC = $(CC) | |
688 | endif | |
e72bfd87 UD |
689 | |
690 | move-if-change = $(SHELL) $(..)scripts/move-if-change | |
a641835a | 691 | \f |
281e6031 UD |
692 | -include $(common-objpfx)sysd-dirs |
693 | ||
694 | ifeq ($(sysd-dirs-done),t) | |
695 | -include $(common-objpfx)sysd-sorted | |
696 | subdirs = $(sorted-subdirs) | |
697 | endif | |
9a0a462c | 698 | |
4de1d597 RM |
699 | ifeq (yes, $(build-shared)) |
700 | ||
480d827b RM |
701 | # Commands to put in a pipeline to preprocess a file with # comments |
702 | # %ifdef et al based on config.h settings or other %include'd files. | |
703 | define preprocess-versions | |
60289c23 UD |
704 | sed '/^[ ]*#/d;s/^[ ]*%/#/' \ |
705 | | $(CC) -traditional -E -undef -I$(common-objdir) -I$(..)include \ | |
ca5becb0 RM |
706 | -include $(common-objpfx)config.h \ |
707 | -x c - \ | |
60289c23 | 708 | | sed '/^[ ]*#/d;/^[ ]*$$/d' |
480d827b RM |
709 | endef |
710 | ||
4de1d597 RM |
711 | # Process the shlib-versions file, which tells us what shared library |
712 | # version numbers to use when we install shared objects on this system. | |
281e6031 UD |
713 | # We need to wait until $(subdirs) is complete. |
714 | ifeq ($(sysd-sorted-done),t) | |
4de1d597 | 715 | -include $(common-objpfx)soversions.mk |
eca3eb3b | 716 | ifndef avoid-generated |
ba7e89ec RM |
717 | $(common-objpfx)soversions.i: $(..)shlib-versions $(..)Makeconfig \ |
718 | $(wildcard $(patsubst %, $(..)%/shlib-versions,\ | |
719 | $(add-ons) \ | |
720 | $(subdirs))) \ | |
721 | $(common-objpfx)config.make | |
480d827b RM |
722 | cat $(filter-out $(..)Makeconfig $(common-objpfx)config.make,$^) \ |
723 | | $(preprocess-versions) \ | |
ba7e89ec RM |
724 | | while read conf version setname; do \ |
725 | test -n "$$version" && \ | |
726 | test `expr '$(config-machine)-$(config-vendor)-$(config-os)' \ | |
727 | : "$$conf"` != 0 || continue; \ | |
728 | lib=`echo $$version | sed 's/=.*$$//'`; \ | |
af260314 RM |
729 | if eval test -z "\$${versioned_$${lib}}"; then \ |
730 | eval versioned_$${lib}=yes; \ | |
731 | number=`echo $$version | sed "s/^.*=//"`; \ | |
732 | echo $$lib $$number $$setname; \ | |
733 | fi; \ | |
ba7e89ec RM |
734 | done > $@T; exit 0 |
735 | mv -f $@T $@ | |
736 | $(common-objpfx)soversions.mk: $(common-objpfx)soversions.i | |
1bc777b8 UD |
737 | (while read lib number setname; do \ |
738 | case $$number in \ | |
739 | [0-9]*) echo "$$lib.so-version=.$$number"; \ | |
740 | echo "all-sonames+=$$lib=$$lib.so\$$($$lib.so-version)";;\ | |
741 | *) echo "$$lib.so-version=$$number"; \ | |
742 | echo "all-sonames+=$$lib=\$$($$lib.so-version)";;\ | |
743 | esac; \ | |
744 | done; \ | |
745 | echo soversions.mk-done = t;) < $< > $@T; exit 0 | |
4de1d597 | 746 | mv -f $@T $@ |
eca3eb3b | 747 | endif |
281e6031 | 748 | endif |
eca3eb3b UD |
749 | |
750 | postclean-generated += soversions.mk | |
4de1d597 | 751 | |
c0e45674 UD |
752 | # Generate the header containing the names of all shared libraries. |
753 | # We use a stamp file to avoid uncessary recompilations. | |
754 | before-compile += $(common-objpfx)gnu/lib-names.h | |
1bc777b8 | 755 | ifeq ($(soversions.mk-done),t) |
60c34a30 | 756 | $(common-objpfx)gnu/lib-names.h: $(common-objpfx)gnu/lib-names.stmp; @: |
c0e45674 UD |
757 | $(common-objpfx)gnu/lib-names.stmp: $(common-objpfx)soversions.mk |
758 | $(make-target-directory) | |
759 | @rm -f ${@:stmp=T} $@ | |
760 | (echo '/* This file is automatically generated.';\ | |
761 | echo ' It defines macros to allow user program to find the shared';\ | |
762 | echo ' library files which come as part of GNU libc. */';\ | |
763 | echo '#ifndef __GNU_LIB_NAMES_H'; \ | |
764 | echo '#define __GNU_LIB_NAMES_H 1'; \ | |
765 | echo; \ | |
766 | (libs='$(all-sonames)';\ | |
767 | for l in $$libs; do \ | |
a8322b4f UD |
768 | name=`echo $$l | sed 's/.*=//'`; \ |
769 | upname=`echo $$l | sed 's/=.*//' | \ | |
7cc27f44 UD |
770 | tr 'abcdefghijklmnopqrstuvwxyz-' \ |
771 | 'ABCDEFGHIJKLMNOPQRSTUVWXYZ_'`; \ | |
a8322b4f UD |
772 | upname2=`echo $$name | sed 's/[.]so.*//' | \ |
773 | tr 'abcdefghijklmnopqrstuvwxyz-' \ | |
774 | 'ABCDEFGHIJKLMNOPQRSTUVWXYZ_'`; \ | |
775 | echo "#define $${upname}_SO \"$$name\""; \ | |
776 | if test $$upname != $$upname2; then \ | |
777 | echo "#define $${upname2}_SO \"$$name\""; \ | |
778 | fi; \ | |
c0e45674 UD |
779 | done;) | sort; \ |
780 | echo; \ | |
781 | echo '#endif /* gnu/lib-names.h */';) > ${@:stmp=T} | |
7e7a548e | 782 | $(move-if-change) ${@:stmp=T} ${@:stmp=h} |
c0e45674 | 783 | touch $@ |
1bc777b8 | 784 | endif |
c0e45674 UD |
785 | |
786 | common-generated += gnu/lib-names.h gnu/lib-names.stmp | |
d41c6f61 UD |
787 | |
788 | # The name under which the run-time dynamic linker is installed. | |
789 | # We are currently going for the convention that `/lib/ld.so.1' | |
790 | # names the SVR4/ELF ABI-compliant dynamic linker. | |
791 | ifndef rtld-installed-name | |
792 | ifdef ld.so-version | |
793 | rtld-installed-name = $(ld.so-version) | |
794 | else | |
795 | rtld-installed-name = ld.so.1 | |
796 | endif | |
797 | endif | |
798 | ||
1ef32c3d UD |
799 | ifndef rtld-version-installed-name |
800 | rtld-version-installed-name = ld-$(version).so | |
801 | endif | |
802 | ||
f649c201 UD |
803 | endif # build-shared |
804 | ||
cbdee279 UD |
805 | ifneq (,$(findstring linuxthreads,$(add-ons))) |
806 | shared-thread-library = $(common-objpfx)linuxthreads/libpthread.so | |
f649c201 | 807 | static-thread-library = $(common-objpfx)linuxthreads/libpthread.a |
e64911d1 | 808 | bounded-thread-library = $(common-objpfx)linuxthreads/libpthread_b.a |
f649c201 | 809 | have-thread-library = yes |
e72bfd87 | 810 | rpath-dirs += linuxthreads |
cbdee279 UD |
811 | endif |
812 | ||
94e365c6 UD |
813 | ifeq ($(elf),yes) |
814 | dlfcn = dlfcn | |
815 | ifeq ($(build-shared),yes) | |
816 | libdl = $(common-objpfx)dlfcn/libdl.so$(libdl.so-version) | |
817 | else | |
818 | libdl = $(common-objpfx)dlfcn/libdl.a | |
819 | endif | |
820 | else | |
821 | # No ELF - no libdl, at least for now. | |
822 | dlfcn = | |
823 | libdl = | |
824 | endif | |
825 | ||
bb41a976 UD |
826 | # These are the subdirectories containing the library source. The order |
827 | # is more or less arbitrary. The sorting step will take care of the | |
828 | # dependencies. Only the $(binfmt-subdir) should always be kept at the | |
829 | # end of the list. | |
8d6f1731 | 830 | all-subdirs = csu assert ctype locale intl catgets math setjmp signal \ |
b0b67c47 UD |
831 | stdlib stdio-common $(stdio) malloc string wcsmbs time dirent \ |
832 | grp pwd posix io termios resource misc socket sysvipc gmon \ | |
b11f5954 | 833 | gnulib iconv iconvdata wctype manual shadow po argp \ |
aaf688e8 | 834 | crypt $(add-ons) nss localedata timezone rt conform debug \ |
63f791d3 | 835 | $(sysdep-subdirs) $(dlfcn) $(binfmt-subdir) |
f3c1143b | 836 | all-subdirs := $(filter-out $(sysdep-inhibit-subdirs),$(all-subdirs)) |
bb41a976 | 837 | |
b22fc5f5 UD |
838 | # The mach and hurd subdirectories have many generated header files which |
839 | # much of the rest of the library depends on, so it is best to build them | |
840 | # first (and mach before hurd, at that). The before-compile additions in | |
841 | # sysdeps/{mach,hurd}/Makefile should make it reliably work for these files | |
842 | # not to exist when making in other directories, but it will be slower that | |
843 | # way with more somewhat expensive `make' invocations. | |
844 | subdirs := $(filter mach,$(subdirs)) $(filter hurd,$(subdirs)) \ | |
845 | $(filter-out mach hurd,$(subdirs)) | |
846 | ||
b7e2d9a5 | 847 | ifndef avoid-generated |
9c4c0024 | 848 | all-Subdirs-files = $(wildcard $(config-sysdirs:%=$(..)%/Subdirs)) |
b22fc5f5 | 849 | $(common-objpfx)sysd-dirs: $(common-objpfx)config.make $(all-Subdirs-files) |
0155a773 UD |
850 | $(AWK) 'BEGIN { subdirs = ""; inhibit = "" }; \ |
851 | /^#/ { next }; \ | |
852 | /^[^-]/ { subdirs = subdirs " " $$0 }; \ | |
853 | /^-/ { inhibit = inhibit " " substr($$0, 2) }; \ | |
854 | END { printf "sysdep-subdirs =%s\n", subdirs; \ | |
855 | printf "sysdep-inhibit-subdirs =%s\n", inhibit; \ | |
856 | print "sysd-dirs-done = t" }' \ | |
48252123 | 857 | $(patsubst $<,/dev/null,$^) > $@-tmp |
b22fc5f5 UD |
858 | mv -f $@-tmp $@ |
859 | ||
bb41a976 UD |
860 | all-Depend-files = $(wildcard $(..)*/Depend) |
861 | $(common-objpfx)sysd-sorted: $(..)scripts/gen-sorted.awk $(all-Depend-files) \ | |
862 | $(common-objpfx)sysd-dirs $(..)Makeconfig | |
281e6031 UD |
863 | { { dirs='$(patsubst $(..)%/Depend,$(..)%,$(filter %/Depend,$^))';\ |
864 | for d in $$dirs; do \ | |
865 | while read on; do \ | |
866 | echo "depend $$d $$on"; \ | |
867 | done < $$d/Depend; \ | |
868 | done; \ | |
869 | for f in $(all-subdirs); do \ | |
870 | echo $$f; \ | |
871 | done; \ | |
872 | } | $(AWK) -f $< && \ | |
873 | echo sysd-sorted-done = t; \ | |
874 | } > $@-tmp | |
bb41a976 | 875 | mv -f $@-tmp $@ |
b7e2d9a5 | 876 | endif |
bb41a976 | 877 | |
28f540f4 | 878 | endif # Makeconfig not yet included |