about summary refs log tree commit diff
path: root/Rules
blob: beab969fde711c9ad30c6d5d4ffda3af65f640c3 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
# Copyright (C) 1991-2020 Free Software Foundation, Inc.
# This file is part of the GNU C Library.

# The GNU C Library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.

# The GNU C Library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
# Lesser General Public License for more details.

# You should have received a copy of the GNU Lesser General Public
# License along with the GNU C Library; if not, see
# <https://www.gnu.org/licenses/>.

#
#	Rules for making a subdirectory in the GNU C library.
#	Each subdirectory Makefile defines some variables and includes this.
#
ifneq (,)
This makefile requires GNU Make.
endif

all: # Don't let the default goal come from Makeconfig.

include $(firstword $(..) ../)Makeconfig

ifndef	subdir
Each subdirectory makefile must define the `subdir' variable.
endif
# This ` unconfuses emacs.
# This is benign and useless in GNU make before 3.63.
export subdir := $(subdir)

# This is the default target; it makes the library and auxiliary programs.
.PHONY: all
all: objs lib others

ifeq ($(build-programs),yes)
others: $(addprefix $(objpfx),$(extra-objs) \
			      $(install-lib) \
			      $(install-bin) $(install-bin-script) \
			      $(install-rootsbin) $(install-sbin))
else
others: $(addprefix $(objpfx),$(extra-objs) \
			      $(install-lib))
endif

ifneq	"$(findstring env,$(origin headers))" ""
headers :=
endif

ifneq	"$(findstring env,$(origin generated))" ""
generated :=
endif

ifneq	"$(findstring env,$(origin common-generated))" ""
common-generated :=
endif

# See below.  This must be set before Makerules processes it.
before-compile += $(common-objpfx)bits/stdio_lim.h

include $(..)Makerules

.PHONY: subdir_lib
subdir_lib: lib-noranlib

# Some subdirs need to install a dummy library.
# They can use "$(objpfx)libfnord.a: $(dep-dummy-lib); $(make-dummy-lib)".
dep-dummy-lib = $(common-objpfx)dummy.o
define make-dummy-lib
$(AR) cr$(verbose) $@ $<
endef

$(common-objpfx)dummy.c:
	rm -f $@
	(echo 'extern void __dummy__ (void);'; \
	 echo 'void __dummy__ (void) { }') > $@
common-generated += dummy.o dummy.c

ifneq "$(headers)" ""
# Test that all of the headers installed by this directory can be compiled
# in isolation.
tests-special += $(objpfx)check-installed-headers-c.out
libof-check-installed-headers-c := testsuite
$(objpfx)check-installed-headers-c.out: \
    $(..)scripts/check-installed-headers.sh $(headers)
	$(SHELL) $(..)scripts/check-installed-headers.sh c \
	  "$(CC) $(filter-out -std=%,$(CFLAGS)) -D_ISOMAC $(+includes)" \
	  $(headers) > $@; \
	$(evaluate-test)

ifneq "$(CXX)" ""
# If a C++ compiler is available, also test that they can be compiled
# in isolation as C++.
tests-special += $(objpfx)check-installed-headers-cxx.out
libof-check-installed-headers-cxx := testsuite
$(objpfx)check-installed-headers-cxx.out: \
    $(..)scripts/check-installed-headers.sh $(headers)
	$(SHELL) $(..)scripts/check-installed-headers.sh c++ \
	  "$(CXX) $(filter-out -std=%,$(CXXFLAGS)) -D_ISOMAC $(+includes)" \
	  $(headers) > $@; \
	$(evaluate-test)
endif # $(CXX)

# Test that a wrapper header exists in include/ for each non-sysdeps header.
# This script does not need $(py-env).
tests-special += $(objpfx)check-wrapper-headers.out
$(objpfx)check-wrapper-headers.out: \
  $(..)scripts/check-wrapper-headers.py $(headers)
	$(PYTHON) $< --root=$(..) --subdir=$(subdir) $(headers) > $@; \
	  $(evaluate-test)

# Test that none of the headers installed by this directory use certain
# obsolete constructs (e.g. legacy BSD typedefs superseded by stdint.h).
# This script does not need $(py-env).
tests-special += $(objpfx)check-obsolete-constructs.out
libof-check-obsolete-constructs := testsuite
$(objpfx)check-obsolete-constructs.out: \
    $(..)scripts/check-obsolete-constructs.py $(headers)
	$(PYTHON) $^ > $@ 2>&1; \
	$(evaluate-test)

endif # $(headers)

# This makes all the auxiliary and test programs.

.PHONY: others tests bench bench-build

# Test programs for the pretty printers.
tests-printers-programs := $(addprefix $(objpfx),$(tests-printers))

# .out files with the output of running the pretty printer tests.
tests-printers-out := $(patsubst %,$(objpfx)%.out,$(tests-printers))

ifeq ($(build-programs),yes)
others: $(addprefix $(objpfx),$(others) $(sysdep-others) $(extra-objs))
else
others: $(addprefix $(objpfx),$(extra-objs))
endif

# Generate constant files for Python pretty printers if required.
others: $(py-const)

ifeq ($(run-built-tests),no)
tests: $(addprefix $(objpfx),$(filter-out $(tests-unsupported), \
                                          $(tests) $(tests-internal) \
					  $(tests-container)) \
			     $(test-srcs)) $(tests-special) \
			     $(tests-printers-programs)
xtests: tests $(xtests-special)
else
tests: $(tests:%=$(objpfx)%.out) $(tests-internal:%=$(objpfx)%.out) \
       $(tests-container:%=$(objpfx)%.out) \
       $(tests-mcheck:%=$(objpfx)%-mcheck.out) \
       $(tests-special) $(tests-printers-out)
xtests: tests $(xtests:%=$(objpfx)%.out) $(xtests-special)
endif

tests-special-notdir = $(patsubst $(objpfx)%, %, $(tests-special))
xtests-special-notdir = $(patsubst $(objpfx)%, %, $(xtests-special))
ifeq ($(run-built-tests),no)
tests-expected =
else
tests-expected = $(tests) $(tests-internal) $(tests-printers) \
	$(tests-container) $(tests-mcheck:%=%-mcheck)
endif
tests:
	$(..)scripts/merge-test-results.sh -s $(objpfx) $(subdir) \
	  $(sort $(tests-expected) $(tests-special-notdir:.out=)) \
	  > $(objpfx)subdir-tests.sum
xtests:
	$(..)scripts/merge-test-results.sh -s $(objpfx) $(subdir) \
	  $(sort $(xtests) $(xtests-special-notdir:.out=)) \
	  > $(objpfx)subdir-xtests.sum

ifeq ($(build-programs),yes)
binaries-all-notests = $(others) $(sysdep-others)
binaries-all-tests = $(tests) $(tests-internal) $(xtests) $(test-srcs) \
		     $(tests-container)
binaries-all = $(binaries-all-notests) $(binaries-all-tests)
binaries-static-notests = $(others-static)
binaries-static-tests = $(tests-static) $(xtests-static)
binaries-static = $(binaries-static-notests) $(binaries-static-tests)
ifeq (yesyes,$(have-fpie)$(build-shared))
binaries-pie-tests = $(tests-pie) $(xtests-pie)
binaries-pie-notests = $(others-pie)
else
binaries-pie-tests =
binaries-pie-notests =
endif
binaries-mcheck-tests = $(tests-mcheck:%=%-mcheck)
else
binaries-all-notests =
binaries-all-tests = $(tests) $(tests-internal) $(xtests) $(test-srcs)
binaries-all = $(binaries-all-tests)
binaries-static-notests =
binaries-static-tests =
binaries-static =
binaries-pie-tests =
binaries-pie-notests =
binaries-mcheck-tests =
endif

binaries-pie = $(binaries-pie-tests) $(binaries-pie-notests)
binaries-shared-tests = $(filter-out $(binaries-pie) $(binaries-static), \
				     $(binaries-all-tests))
binaries-shared-notests = $(filter-out $(binaries-pie) $(binaries-static), \
				       $(binaries-all-notests))

ifneq "$(strip $(binaries-shared-notests))" ""
$(addprefix $(objpfx),$(binaries-shared-notests)): %: %.o \
  $(sort $(filter $(common-objpfx)lib%,$(link-libc))) \
  $(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit)
	$(+link)
endif

ifneq "$(strip $(binaries-shared-tests))" ""
$(addprefix $(objpfx),$(binaries-shared-tests)): %: %.o \
  $(link-extra-libs-tests) \
  $(sort $(filter $(common-objpfx)lib%,$(link-libc))) \
  $(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit)
	$(+link-tests)
endif

ifneq "$(strip $(binaries-mcheck-tests))" ""
$(addprefix $(objpfx),$(binaries-mcheck-tests)): %-mcheck: %.o \
  $(link-extra-libs-tests) \
  $(sort $(filter $(common-objpfx)lib%,$(link-libc))) \
  $(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit)
	$(+link-tests)
endif

ifneq "$(strip $(binaries-pie-tests))" ""
$(addprefix $(objpfx),$(binaries-pie-tests)): %: %.o \
  $(link-extra-libs-tests) \
  $(sort $(filter $(common-objpfx)lib%,$(link-libc))) \
  $(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit)
	$(+link-pie-tests)
endif

ifneq "$(strip $(binaries-pie-notests))" ""
$(addprefix $(objpfx),$(binaries-pie-notests)): %: %.o \
  $(sort $(filter $(common-objpfx)lib%,$(link-libc))) \
  $(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit)
	$(+link-pie)
endif

ifneq "$(strip $(binaries-static-notests))" ""
$(addprefix $(objpfx),$(binaries-static-notests)): %: %.o \
  $(sort $(filter $(common-objpfx)lib%,$(link-libc-static))) \
  $(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit)
	$(+link-static)
endif

ifneq "$(strip $(binaries-static-tests))" ""
$(addprefix $(objpfx),$(binaries-static-tests)): %: %.o \
  $(link-extra-libs-tests) \
  $(sort $(filter $(common-objpfx)lib%,$(link-libc-static-tests))) \
  $(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit)
	$(+link-static-tests)
endif

# All mcheck tests will be run with MALLOC_CHECK_=3
define mcheck-ENVS
$(1)-mcheck-ENV = MALLOC_CHECK_=3
endef
$(foreach t,$(tests-mcheck),$(eval $(call mcheck-ENVS,$(t))))

ifneq "$(strip $(tests) $(tests-internal) $(xtests) $(test-srcs))" ""
# These are the implicit rules for making test outputs
# from the test programs and whatever input files are present.

define make-test-out
$(if $($*-ENV-only),$(test-wrapper-env-only) $($*-ENV-only),\
     $(test-wrapper-env) $(run-program-env) $($*-ENV)) \
$(host-test-program-cmd) $($*-ARGS)
endef
$(objpfx)%.out: %.input $(objpfx)%
	$(make-test-out) > $@ < $(word 1,$^); \
	$(evaluate-test)
$(objpfx)%.out: /dev/null $(objpfx)%	# Make it 2nd arg for canned sequence.
	$(make-test-out) > $@; \
	$(evaluate-test)


# Any tests that require an isolated container (filesystem, network
# and pid namespaces) in which to run, should be added to
# tests-container.
$(tests-container:%=$(objpfx)%.out): $(objpfx)%.out : $(if $(wildcard $(objpfx)%.files),$(objpfx)%.files,/dev/null) $(objpfx)%
	$(test-wrapper-env) $(run-program-env) $(run-via-rtld-prefix) \
	  $(common-objpfx)support/test-container env $(run-program-env) $($*-ENV) \
	  $(host-test-program-cmd) $($*-ARGS) > $@; \
	$(evaluate-test)


# tests-unsupported lists tests that we will not try to build at all in
# this configuration.  Note this runs every time because it does not
# actually create its target.  The dependency on Makefile is meant to
# ensure that it runs after a Makefile change to add a test to the list
# when it previously ran and produced a .out file (probably for a failure).
ifneq "$(strip $(tests-unsupported))" ""
$(tests-unsupported:%=$(objpfx)%.out): $(objpfx)%.out: Makefile
	@rm -f $@
	$(..)scripts/evaluate-test.sh $(patsubst $(common-objpfx)%.out,%,$@) \
				      77 false false > $(@:.out=.test-result)
endif

endif	# tests

ifneq "$(strip $(tests-printers))" ""

# Static pattern rule for building the test programs for the pretty printers.
$(tests-printers-programs): %: %.o $(tests-printers-libs) \
  $(sort $(filter $(common-objpfx)lib%,$(link-libc-static-tests))) \
  $(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit)
	$(+link-printers-tests)

# Add the paths to the generated constants file and test_common_printers.py
# to PYTHONPATH so the test scripts can find them.
py-env := PYTHONPATH=$(py-const-dir):$(..)scripts:$${PYTHONPATH}

# Static pattern rule that matches the test-* targets to their .c and .py
# prerequisites.  It'll run the corresponding test script for each test program
# we compiled and place its output in the corresponding .out file.
# The pretty printer files and test_common_printers.py must be present for all.
$(tests-printers-out): $(objpfx)%.out: $(objpfx)% %.py %.c $(pretty-printers) \
		       $(..)scripts/test_printers_common.py
	$(test-wrapper-env) $(py-env) \
	    $(PYTHON) $*.py $*.c $(objpfx)$* $(pretty-printers) > $@; \
	$(evaluate-test)
endif


.PHONY: distclean realclean subdir_distclean subdir_realclean \
	subdir_clean subdir_mostlyclean subdir_testclean
subdir_mostlyclean: mostlyclean
subdir_clean: clean
subdir_distclean: distclean
subdir_realclean: realclean
subdir_testclean: do-tests-clean
realclean: distclean
distclean: clean

# We want to install everything except the library itself, but update all
# our portions of the library because the parent make will install it later
# (likewise the stubs file).
.PHONY: subdir_install
subdir_install: install-no-libc.a lib-noranlib stubs

.PHONY: subdir_objs subdir_stubs
subdir_objs: objs
subdir_stubs: stubs

# Target required by the Hurd to ensure that all the MiG-generated
# headers are in place before building a subdirectory.
.PHONY: before-compile
before-compile: $(before-compile)

$(common-objpfx)dummy.o: $(common-objpfx)dummy.c $(before-compile);
	$(compile-command.c)

# Local Variables:
# mode: makefile
# End: