Makefile

   1 # Copyright (C) 1991-2021 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 # <https://www.gnu.org/licenses/>.
  17
  18 #
  19 #       Master Makefile for the GNU C library
  20 #
  21 ifneq (,)
  22 This makefile requires GNU Make.
  23 endif
  24
  25 include Makeconfig
  26
  27
  28 # This is the default target; it makes everything except the tests.
  29 .PHONY: all help minihelp
  30 all: minihelp lib others
  31
  32 help:
  33         @sed '0,/^help-starts-here$$/d' Makefile.help
  34
  35 minihelp:
  36         @echo
  37         @echo type \"make help\" for help with common glibc makefile targets
  38         @echo
  39
  40 \f
  41 ifneq ($(AUTOCONF),no)
  42
  43 define autoconf-it
  44 @-rm -f $@.new
  45 $(AUTOCONF) $(ACFLAGS) $< > $@.new
  46 chmod a-w$(patsubst %,$(comma)a+x,$(filter .,$(@D))) $@.new
  47 mv -f $@.new $@
  48 endef
  49
  50 configure: configure.ac aclocal.m4; $(autoconf-it)
  51 %/configure: %/configure.ac aclocal.m4; $(autoconf-it)
  52 %/preconfigure: %/preconfigure.ac aclocal.m4; $(autoconf-it)
  53
  54 endif # $(AUTOCONF) = no
  55
  56
  57 # We don't want to run anything here in parallel.
  58 .NOTPARALLEL:
  59
  60 # These are the targets that are made by making them in each subdirectory.
  61 +subdir_targets := subdir_lib objects objs others subdir_mostlyclean    \
  62                    subdir_clean subdir_distclean subdir_realclean       \
  63                    tests xtests                                         \
  64                    subdir_update-abi subdir_check-abi                   \
  65                    subdir_update-all-abi                                \
  66                    subdir_echo-headers                                  \
  67                    subdir_install                                       \
  68                    subdir_objs subdir_stubs subdir_testclean            \
  69                    $(addprefix install-, no-libc.a bin lib data headers others)
  70 \f
  71 headers := limits.h values.h features.h features-time64.h gnu-versions.h \
  72            bits/xopen_lim.h gnu/libc-version.h stdc-predef.h \
  73            bits/libc-header-start.h
  74
  75 echo-headers: subdir_echo-headers
  76
  77 # The headers are in the include directory.
  78 subdir-dirs = include
  79 vpath %.h $(subdir-dirs)
  80
  81 # What to install.
  82 install-others = $(inst_includedir)/gnu/stubs.h
  83 install-bin-script =
  84
  85 ifeq (yes,$(build-shared))
  86 headers += gnu/lib-names.h
  87 endif
  88
  89 include Makerules
  90
  91 ifeq ($(build-programs),yes)
  92 others: $(addprefix $(objpfx),$(install-bin-script))
  93 endif
  94
  95 # Install from subdirectories too.
  96 install: subdir_install
  97
  98 # Explicit dependency so that `make install-headers' works
  99 install-headers: install-headers-nosubdir
 100
 101 # Make sure that the dynamic linker is installed before libc.
 102 $(inst_slibdir)/libc-$(version).so: elf/ldso_install
 103
 104 .PHONY: elf/ldso_install
 105 elf/ldso_install:
 106         $(MAKE) -C $(@D) $(@F)
 107
 108 # Create links for shared libraries using the `ldconfig' program if possible.
 109 # Ignore the error if we cannot update /etc/ld.so.cache.
 110 ifeq (no,$(cross-compiling))
 111 ifeq (yes,$(build-shared))
 112 install:
 113         -test ! -x $(elf-objpfx)ldconfig || LC_ALL=C \
 114           $(elf-objpfx)ldconfig $(addprefix -r ,$(install_root)) \
 115                                 $(slibdir) $(libdir)
 116 ifneq (no,$(PERL))
 117 ifeq (/usr,$(prefix))
 118 ifeq (,$(install_root))
 119         LD_SO=$(ld.so-version) CC="$(CC)" $(PERL) scripts/test-installation.pl $(common-objpfx)
 120 endif
 121 endif
 122 endif
 123 endif
 124 endif
 125
 126 # Build subdirectory lib objects.
 127 lib-noranlib: subdir_lib
 128
 129 ifeq (yes,$(build-shared))
 130 # Build the shared object from the PIC object library.
 131 lib: $(common-objpfx)libc.so $(common-objpfx)linkobj/libc.so
 132 endif # $(build-shared)
 133
 134 # Used to build testrun.sh.
 135 define testrun-script
 136 #!/bin/bash
 137 builddir=`dirname "$$0"`
 138 GCONV_PATH="$${builddir}/iconvdata"
 139
 140 usage () {
 141 cat << EOF
 142 Usage: $$0 [OPTIONS] <program> [ARGUMENTS...]
 143
 144   --tool=TOOL  Run with the specified TOOL. It can be strace, valgrind or
 145                container. The container will run within support/test-container.
 146 EOF
 147
 148   exit 1
 149 }
 150
 151 toolname=default
 152 while test $$# -gt 0 ; do
 153   case "$$1" in
 154     --tool=*)
 155       toolname="$${1:7}"
 156       shift
 157       ;;
 158     --*)
 159       usage
 160       ;;
 161     *)
 162       break
 163       ;;
 164   esac
 165 done
 166
 167 if test $$# -eq 0 ; then
 168   usage
 169 fi
 170
 171 case "$$toolname" in
 172   default)
 173     exec $(subst $(common-objdir),"$${builddir}", $(test-program-prefix)) \
 174       $${1+"$$@"}
 175     ;;
 176   strace)
 177     exec strace $(patsubst %, -E%, $(run-program-env)) \
 178       $(test-via-rtld-prefix) $${1+"$$@"}
 179     ;;
 180   valgrind)
 181     exec env $(run-program-env) valgrind $(test-via-rtld-prefix) $${1+"$$@"}
 182     ;;
 183   container)
 184     exec env $(run-program-env) $(test-via-rtld-prefix) \
 185       $(common-objdir)/support/test-container \
 186       env $(run-program-env) $(test-via-rtld-prefix) $${1+"$$@"}
 187     ;;
 188   *)
 189     usage
 190     ;;
 191 esac
 192 endef
 193
 194 # This is a handy script for running any dynamically linked program against
 195 # the current libc build for testing.
 196 $(common-objpfx)testrun.sh: $(common-objpfx)config.make \
 197                             $(..)Makeconfig $(..)Makefile
 198         $(file >$@T,$(testrun-script))
 199         chmod a+x $@T
 200         mv -f $@T $@
 201 postclean-generated += testrun.sh
 202
 203 define debugglibc
 204 #!/bin/bash
 205
 206 SOURCE_DIR="$(CURDIR)"
 207 BUILD_DIR="$(common-objpfx)"
 208 CMD_FILE="$(common-objpfx)debugglibc.gdb"
 209 CONTAINER=false
 210 DIRECT=true
 211 STATIC=false
 212 SYMBOLSFILE=true
 213 unset TESTCASE
 214 unset BREAKPOINTS
 215 unset ENVVARS
 216
 217 usage()
 218 {
 219 cat << EOF
 220 Usage: $$0 [OPTIONS] <program>
 221
 222    Or: $$0 [OPTIONS] -- <program> [<args>]...
 223
 224   where <program> is the path to the program being tested,
 225   and <args> are the arguments to be passed to it.
 226
 227 Options:
 228
 229   -h, --help
 230         Prints this message and leaves.
 231
 232   The following options require one argument:
 233
 234   -b, --breakpoint
 235         Breakpoints to set at the beginning of the execution
 236         (each breakpoint demands its own -b option, e.g. -b foo -b bar)
 237   -e, --environment-variable
 238         Environment variables to be set with 'exec-wrapper env' in GDB
 239         (each environment variable demands its own -e option, e.g.
 240         -e FOO=foo -e BAR=bar)
 241
 242   The following options do not take arguments:
 243
 244   -c, --in-container
 245         Run the test case inside a container and automatically attach
 246         GDB to it.
 247   -i, --no-direct
 248         Selects whether to pass the --direct flag to the program.
 249         --direct is useful when debugging glibc test cases. It inhibits the
 250         tests from forking and executing in a subprocess.
 251         Default behaviour is to pass the --direct flag, except when the
 252         program is run with user specified arguments using the "--" separator.
 253   -s, --no-symbols-file
 254         Do not tell GDB to load debug symbols from the program.
 255 EOF
 256 }
 257
 258 # Parse input options
 259 while [[ $$# > 0 ]]
 260 do
 261   key="$$1"
 262   case $$key in
 263     -h|--help)
 264       usage
 265       exit 0
 266       ;;
 267     -b|--breakpoint)
 268       BREAKPOINTS="break $$2\n$$BREAKPOINTS"
 269       shift
 270       ;;
 271     -e|--environment-variable)
 272       ENVVARS="$$2 $$ENVVARS"
 273       shift
 274       ;;
 275     -c|--in-container)
 276       CONTAINER=true
 277       ;;
 278     -i|--no-direct)
 279       DIRECT=false
 280       ;;
 281     -s|--no-symbols-file)
 282       SYMBOLSFILE=false
 283       ;;
 284     --)
 285       shift
 286       TESTCASE=$$1
 287       COMMANDLINE="$$@"
 288       # Don't add --direct when user specifies program arguments
 289       DIRECT=false
 290       break
 291       ;;
 292     *)
 293       TESTCASE=$$1
 294       COMMANDLINE=$$TESTCASE
 295       ;;
 296   esac
 297   shift
 298 done
 299
 300 # Check for required argument and if the testcase exists
 301 if [ ! -v TESTCASE ] || [ ! -f $${TESTCASE} ]
 302 then
 303   usage
 304   exit 1
 305 fi
 306
 307 # Container tests needing locale data should install them in-container.
 308 # Other tests/binaries need to use locale data from the build tree.
 309 if [ "$$CONTAINER" = false ]
 310 then
 311   ENVVARS="GCONV_PATH=$${BUILD_DIR}/iconvdata $$ENVVARS"
 312   ENVVARS="LOCPATH=$${BUILD_DIR}/localedata $$ENVVARS"
 313   ENVVARS="LC_ALL=C $$ENVVARS"
 314 fi
 315
 316 # Expand environment setup command
 317 if [ -v ENVVARS ]
 318 then
 319   ENVVARSCMD="set exec-wrapper env $$ENVVARS"
 320 fi
 321
 322 # Expand direct argument
 323 if [ "$$DIRECT" == true ]
 324 then
 325   DIRECT="--direct"
 326 else
 327   DIRECT=""
 328 fi
 329
 330 # Check if the test case is static
 331 if file $${TESTCASE} | grep "statically linked" >/dev/null
 332 then
 333   STATIC=true
 334 else
 335   STATIC=false
 336 fi
 337
 338 # Expand symbols loading command
 339 if [ "$$SYMBOLSFILE" == true ]
 340 then
 341   SYMBOLSFILE="add-symbol-file $${TESTCASE}"
 342 else
 343   SYMBOLSFILE=""
 344 fi
 345
 346 # GDB commands template
 347 template ()
 348 {
 349 cat <<EOF
 350 set environment C -E -x c-header
 351 set auto-load safe-path $${BUILD_DIR}/nptl_db:\$$debugdir:\$$datadir/auto-load
 352 set libthread-db-search-path $${BUILD_DIR}/nptl_db
 353 __ENVVARS__
 354 __SYMBOLSFILE__
 355 break _dl_start_user
 356 run --library-path $(rpath-link):$${BUILD_DIR}/nptl_db \
 357 __COMMANDLINE__ __DIRECT__
 358 __BREAKPOINTS__
 359 EOF
 360 }
 361
 362 # Generate the commands file for gdb initialization
 363 template | sed \
 364   -e "s|__ENVVARS__|$$ENVVARSCMD|" \
 365   -e "s|__SYMBOLSFILE__|$$SYMBOLSFILE|" \
 366   -e "s|__COMMANDLINE__|$$COMMANDLINE|" \
 367   -e "s|__DIRECT__|$$DIRECT|" \
 368   -e "s|__BREAKPOINTS__|$$BREAKPOINTS|" \
 369   > $$CMD_FILE
 370
 371 echo
 372 echo "Debugging glibc..."
 373 echo "Build directory  : $$BUILD_DIR"
 374 echo "Source directory : $$SOURCE_DIR"
 375 echo "GLIBC Testcase   : $$TESTCASE"
 376 echo "GDB Commands     : $$CMD_FILE"
 377 echo "Env vars         : $$ENVVARS"
 378 echo
 379
 380 if [ "$$CONTAINER" == true ]
 381 then
 382 # Use testrun.sh to start the test case with WAIT_FOR_DEBUGGER=1, then
 383 # automatically attach GDB to it.
 384 WAIT_FOR_DEBUGGER=1 $(common-objpfx)testrun.sh --tool=container $${TESTCASE} &
 385 gdb -x $${TESTCASE}.gdb
 386 elif [ "$$STATIC" == true ]
 387 then
 388 gdb $${TESTCASE}
 389 else
 390 # Start the test case debugging in two steps:
 391 #   1. the following command invokes gdb to run the loader;
 392 #   2. the commands file tells the loader to run the test case.
 393 gdb -q \
 394   -x $${CMD_FILE} \
 395   -d $${SOURCE_DIR} \
 396   $${BUILD_DIR}/elf/ld.so
 397 fi
 398 endef
 399
 400 # This is another handy script for debugging dynamically linked program
 401 # against the current libc build for testing.
 402 $(common-objpfx)debugglibc.sh: $(common-objpfx)config.make \
 403                             $(..)Makeconfig $(..)Makefile
 404         $(file >$@T,$(debugglibc))
 405         chmod a+x $@T
 406         mv -f $@T $@
 407 postclean-generated += debugglibc.sh debugglibc.gdb
 408
 409 others: $(common-objpfx)testrun.sh $(common-objpfx)debugglibc.sh
 410 \f
 411 # Makerules creates a file `stubs' in each subdirectory, which
 412 # contains `#define __stub_FUNCTION' for each function defined in that
 413 # directory which is a stub.
 414 # Here we paste all of these together into <gnu/stubs.h>.
 415
 416 subdir-stubs := $(foreach dir,$(subdirs),$(common-objpfx)$(dir)/stubs)
 417
 418 ifndef abi-variants
 419 installed-stubs = $(inst_includedir)/gnu/stubs.h
 420 else
 421 installed-stubs = $(inst_includedir)/gnu/stubs-$(default-abi).h
 422
 423 $(inst_includedir)/gnu/stubs.h: $(+force)
 424         $(make-target-directory)
 425         { \
 426          echo '/* This file is automatically generated.';\
 427          echo "   This file selects the right generated file of \`__stub_FUNCTION' macros";\
 428          echo '   based on the architecture being compiled for.  */'; \
 429          echo ''; \
 430          $(foreach h,$(abi-includes), echo '#include <$(h)>';) \
 431          echo ''; \
 432          $(foreach v,$(abi-variants),\
 433          $(if $(abi-$(v)-condition),\
 434          echo '#if $(abi-$(v)-condition)'; \
 435          echo '# include <gnu/stubs-$(v).h>'); \
 436          $(if $(abi-$(v)-condition),echo '#endif';) \
 437          rm -f $(@:.d=.h).new$(v); \
 438          ) \
 439         } > $(@:.d=.h).new
 440         mv -f $(@:.d=.h).new $(@:.d=.h)
 441
 442 install-others-nosubdir: $(installed-stubs)
 443 endif
 444
 445
 446 # Since stubs.h is never needed when building the library, we simplify the
 447 # hairy installation process by producing it in place only as the last part
 448 # of the top-level `make install'.  It depends on subdir_install, which
 449 # iterates over all the subdirs; subdir_install in each subdir depends on
 450 # the subdir's stubs file.  Having more direct dependencies would result in
 451 # extra iterations over the list for subdirs and many recursive makes.
 452 $(installed-stubs): include/stubs-prologue.h subdir_install
 453         $(make-target-directory)
 454         @rm -f $(objpfx)stubs.h
 455         (sed '/^@/d' $<; LC_ALL=C sort $(subdir-stubs)) > $(objpfx)stubs.h
 456         if test -r $@ && cmp -s $(objpfx)stubs.h $@; \
 457         then echo 'stubs.h unchanged'; \
 458         else $(INSTALL_DATA) $(objpfx)stubs.h $@; fi
 459         rm -f $(objpfx)stubs.h
 460 \f
 461 # This makes the Info or DVI file of the documentation from the Texinfo source.
 462 .PHONY: info dvi pdf html
 463 info dvi pdf html:
 464         $(MAKE) $(PARALLELMFLAGS) -C manual $@
 465 \f
 466 # This makes all the subdirectory targets.
 467
 468 # For each target, make it depend on DIR/target for each subdirectory DIR.
 469 $(+subdir_targets): %: $(addsuffix /%,$(subdirs))
 470
 471 # Compute a list of all those targets.
 472 all-subdirs-targets := $(foreach dir,$(subdirs),\
 473                                  $(addprefix $(dir)/,$(+subdir_targets)))
 474
 475 # The action for each of those is to cd into the directory and make the
 476 # target there.
 477 $(all-subdirs-targets):
 478         $(MAKE) $(PARALLELMFLAGS) $(subdir-target-args) $(@F)
 479
 480 define subdir-target-args
 481 subdir=$(@D)$(if $($(@D)-srcdir),\
 482 -C $($(@D)-srcdir) ..=`pwd`/,\
 483 -C $(@D) ..=../)
 484 endef
 485
 486 .PHONY: $(+subdir_targets) $(all-subdirs-targets)
 487 \f
 488 # Targets to clean things up to various degrees.
 489
 490 .PHONY: clean realclean distclean distclean-1 parent-clean parent-mostlyclean \
 491         tests-clean
 492
 493 # Subroutines of all cleaning targets.
 494 parent-mostlyclean: common-mostlyclean # common-mostlyclean is in Makerules.
 495         -rm -f $(foreach o,$(object-suffixes-for-libc),\
 496                    $(common-objpfx)$(patsubst %,$(libtype$o),c)) \
 497                $(addprefix $(objpfx),$(install-lib))
 498 parent-clean: parent-mostlyclean common-clean
 499
 500 postclean = $(addprefix $(common-objpfx),$(postclean-generated)) \
 501             $(addprefix $(objpfx),sysd-dirs sysd-rules) \
 502             $(addprefix $(objpfx),sysd-sorted soversions.mk soversions.i)
 503
 504 clean: parent-clean
 505 # This is done this way rather than having `subdir_clean' be a
 506 # dependency of this target so that libc.a will be removed before the
 507 # subdirectories are dealt with and so they won't try to remove object
 508 # files from it when it's going to be removed anyway.
 509         @$(MAKE) subdir_clean no_deps=t
 510         -rm -f $(postclean)
 511 mostlyclean: parent-mostlyclean
 512         @$(MAKE) subdir_mostlyclean no_deps=t
 513         -rm -f $(postclean)
 514
 515 tests-clean:
 516         @$(MAKE) subdir_testclean no_deps=t
 517
 518 ifneq (,$(CXX))
 519 vpath c++-types.data $(+sysdep_dirs)
 520
 521 tests-special += $(objpfx)c++-types-check.out
 522 $(objpfx)c++-types-check.out: c++-types.data scripts/check-c++-types.sh
 523         scripts/check-c++-types.sh $< $(CXX) $(filter-out -std=gnu11 $(+gccwarn-c),$(CFLAGS)) $(CPPFLAGS) > $@; \
 524         $(evaluate-test)
 525 endif
 526
 527 tests-special += $(objpfx)check-local-headers.out
 528 $(objpfx)check-local-headers.out: scripts/check-local-headers.sh
 529         AWK='$(AWK)' scripts/check-local-headers.sh \
 530           "$(includedir)" "$(objpfx)" < /dev/null > $@; \
 531         $(evaluate-test)
 532
 533 ifneq "$(headers)" ""
 534 # Special test of all the installed headers in this directory.
 535 tests-special += $(objpfx)check-installed-headers-c.out
 536 libof-check-installed-headers-c := testsuite
 537 $(objpfx)check-installed-headers-c.out: \
 538     scripts/check-installed-headers.sh $(headers)
 539         $(SHELL) $(..)scripts/check-installed-headers.sh c \
 540           "$(CC) $(filter-out -std=%,$(CFLAGS)) -D_ISOMAC $(+includes)" \
 541           $(headers) > $@; \
 542         $(evaluate-test)
 543
 544 ifneq "$(CXX)" ""
 545 tests-special += $(objpfx)check-installed-headers-cxx.out
 546 libof-check-installed-headers-cxx := testsuite
 547 $(objpfx)check-installed-headers-cxx.out: \
 548     scripts/check-installed-headers.sh $(headers)
 549         $(SHELL) $(..)scripts/check-installed-headers.sh c++ \
 550           "$(CXX) $(filter-out -std=%,$(CXXFLAGS)) -D_ISOMAC $(+includes)" \
 551           $(headers) > $@; \
 552         $(evaluate-test)
 553 endif # $(CXX)
 554
 555 tests-special += $(objpfx)check-wrapper-headers.out
 556 $(objpfx)check-wrapper-headers.out: scripts/check-wrapper-headers.py $(headers)
 557         $(PYTHON) $< --root=. --subdir=. $(headers) \
 558           --generated $(common-generated) > $@; $(evaluate-test)
 559 endif # $(headers)
 560
 561 define summarize-tests
 562 @egrep -v '^(PASS|XFAIL):' $(objpfx)$1 || true
 563 @echo "Summary of test results$2:"
 564 @sed 's/:.*//' < $(objpfx)$1 | sort | uniq -c
 565 @! egrep -q -v '^(X?PASS|XFAIL|UNSUPPORTED):' $(objpfx)$1
 566 endef
 567
 568 # The intention here is to do ONE install of our build into the
 569 # testroot.pristine/ directory, then rsync (internal to
 570 # support/test-container) that to testroot.root/ at the start of each
 571 # test.  That way we can promise each test a "clean" install, without
 572 # having to do the install for each test.
 573 #
 574 # In addition, we have to copy some files (which we build) into this
 575 # root in addition to what glibc installs.  For example, many tests
 576 # require additional programs including /bin/sh, /bin/true, and
 577 # /bin/echo, all of which we build below to limit library dependencies
 578 # to just those things in glibc and language support libraries which
 579 # we also copy into the into the rootfs.  To determine what language
 580 # support libraries we need we build a "test" program in either C or
 581 # (if available) C++ just so we can copy in any shared objects
 582 # (which we do not build) that GCC-compiled programs depend on.
 583
 584
 585 ifeq (,$(CXX))
 586 LINKS_DSO_PROGRAM = links-dso-program-c
 587 else
 588 LINKS_DSO_PROGRAM = links-dso-program
 589 endif
 590
 591 $(tests-container) $(addsuffix /tests,$(subdirs)) : \
 592                 $(objpfx)testroot.pristine/install.stamp
 593 $(objpfx)testroot.pristine/install.stamp :
 594         test -d $(objpfx)testroot.pristine || \
 595           mkdir $(objpfx)testroot.pristine
 596         # We need a working /bin/sh for some of the tests.
 597         test -d $(objpfx)testroot.pristine/bin || \
 598           mkdir $(objpfx)testroot.pristine/bin
 599         # We need the compiled locale dir for localedef tests.
 600         test -d $(objpfx)testroot.pristine/$(complocaledir) || \
 601           mkdir -p $(objpfx)testroot.pristine/$(complocaledir)
 602         cp $(objpfx)support/shell-container $(objpfx)testroot.pristine/bin/sh
 603         cp $(objpfx)support/echo-container $(objpfx)testroot.pristine/bin/echo
 604         cp $(objpfx)support/true-container $(objpfx)testroot.pristine/bin/true
 605 ifeq ($(run-built-tests),yes)
 606         # Copy these DSOs first so we can overwrite them with our own.
 607         for dso in `$(test-wrapper-env) LD_TRACE_LOADED_OBJECTS=1  \
 608                 $(rtld-prefix) \
 609                 $(objpfx)testroot.pristine/bin/sh \
 610                 | sed -n '/\//{s@.*=> /@/@;s/^[^/]*//;s/ .*//p;}'` ;\
 611           do \
 612             test -d `dirname $(objpfx)testroot.pristine$$dso` || \
 613               mkdir -p `dirname $(objpfx)testroot.pristine$$dso` ;\
 614             $(test-wrapper) cp $$dso $(objpfx)testroot.pristine$$dso ;\
 615           done
 616         for dso in `$(test-wrapper-env) LD_TRACE_LOADED_OBJECTS=1  \
 617                 $(rtld-prefix) \
 618                 $(objpfx)support/$(LINKS_DSO_PROGRAM) \
 619                 | sed -n '/\//{s@.*=> /@/@;s/^[^/]*//;s/ .*//p;}'` ;\
 620           do \
 621             test -d `dirname $(objpfx)testroot.pristine$$dso` || \
 622               mkdir -p `dirname $(objpfx)testroot.pristine$$dso` ;\
 623             $(test-wrapper) cp $$dso $(objpfx)testroot.pristine$$dso ;\
 624           done
 625 endif
 626         # $(symbolic-link-list) is a file that encodes $(DESTDIR) so we
 627         # have to purge it
 628         rm -f $(symbolic-link-list)
 629         # Setting INSTALL_UNCOMPRESSED causes localedata/Makefile to
 630         # install the charmaps uncompressed, as the testroot does not
 631         # provide a gunzip program.
 632         $(MAKE) install DESTDIR=$(objpfx)testroot.pristine \
 633           INSTALL_UNCOMPRESSED=yes subdirs='$(sorted-subdirs)'
 634         rm -f $(symbolic-link-list)
 635         touch $(objpfx)testroot.pristine/install.stamp
 636
 637 tests-special-notdir = $(patsubst $(objpfx)%, %, $(tests-special))
 638 tests: $(tests-special)
 639         $(..)scripts/merge-test-results.sh -s $(objpfx) "" \
 640           $(sort $(tests-special-notdir:.out=)) \
 641           > $(objpfx)subdir-tests.sum
 642         $(..)scripts/merge-test-results.sh -t $(objpfx) subdir-tests.sum \
 643           $(sort $(subdirs) .) \
 644           > $(objpfx)tests.sum
 645         $(call summarize-tests,tests.sum)
 646 xtests:
 647         $(..)scripts/merge-test-results.sh -t $(objpfx) subdir-xtests.sum \
 648           $(sort $(subdirs)) \
 649           > $(objpfx)xtests.sum
 650         $(call summarize-tests,xtests.sum, for extra tests)
 651
 652 # The realclean target is just like distclean for the parent, but we want
 653 # the subdirs to know the difference in case they care.
 654 realclean distclean: parent-clean
 655 # This is done this way rather than having `subdir_distclean' be a
 656 # dependency of this target so that libc.a will be removed before the
 657 # subdirectories are dealt with and so they won't try to remove object
 658 # files from it when it's going to be removed anyway.
 659         @$(MAKE) distclean-1 no_deps=t distclean-1=$@ avoid-generated=yes \
 660                  sysdep-subdirs="$(sysdep-subdirs)"
 661         -rm -f $(postclean)
 662
 663 # Subroutine of distclean and realclean.
 664 distclean-1: subdir_$(distclean-1)
 665         -rm -f $(config-generated)
 666         -rm -f $(addprefix $(objpfx),config.status config.cache config.log)
 667         -rm -f $(addprefix $(objpfx),config.make config-name.h config.h)
 668 ifdef objdir
 669         -rm -f $(objpfx)Makefile
 670 endif
 671         -rm -f $(sysdep-$(distclean-1))
 672 \f
 673 # Make the TAGS file for Emacs users.
 674
 675 .PHONY: TAGS
 676 TAGS:
 677         scripts/list-sources.sh | sed -n -e '/Makefile/p' \
 678           $(foreach S,[chsSyl] cxx sh bash pl,\
 679                     $(subst .,\.,-e '/.$S\(.in\)*$$/p')) \
 680         | $(ETAGS) -o $@ -
 681 \f
 682 # Make the distribution tarfile.
 683 .PHONY: dist dist-prepare
 684
 685 generated := $(generated) stubs.h
 686
 687 files-for-dist := README INSTALL configure NEWS
 688
 689 # Regenerate stuff, then error if these things are not committed yet.
 690 dist-prepare: $(files-for-dist)
 691         conf=`find sysdeps -name configure`; \
 692         $(MAKE) $$conf && \
 693         git diff --stat HEAD -- $^ $$conf \
 694         | $(AWK) '{ print; rc=1 } END { exit rc }'
 695
 696 %.tar: FORCE
 697         git archive --prefix=$*/ $* > $@.new
 698         mv -f $@.new $@
 699
 700 # Do `make dist dist-version=X.Y.Z' to make tar files of an older version.
 701
 702 ifneq (,$(strip $(dist-version)))
 703 dist: $(foreach Z,.bz2 .gz .xz,$(dist-version).tar$Z)
 704         md5sum $^
 705 else
 706 dist: dist-prepare
 707         @if v=`git describe`; then \
 708           echo Distribution version $$v; \
 709           $(MAKE) dist dist-version=$$v; \
 710         else \
 711           false; \
 712         fi
 713 endif
 714
 715 INSTALL: manual/install-plain.texi manual/macros.texi \
 716          $(common-objpfx)manual/pkgvers.texi manual/install.texi
 717         makeinfo --no-validate --plaintext --no-number-sections \
 718                  -I$(common-objpfx)manual $< -o $@-tmp
 719         $(AWK) 'NF == 0 { ++n; next } \
 720                 NF != 0 { while (n-- > 0) print ""; n = 0; print }' \
 721           < $@-tmp > $@-tmp2
 722         rm -f $@-tmp
 723         -chmod a-w $@-tmp2
 724         mv -f $@-tmp2 $@
 725 $(common-objpfx)manual/%: FORCE
 726         $(MAKE) $(PARALLELMFLAGS) -C manual $@
 727 FORCE:
 728
 729 iconvdata/% localedata/% po/%: FORCE
 730         $(MAKE) $(PARALLELMFLAGS) -C $(@D) $(@F)
 731
 732 # Convenience target to rerun one test, from the top of the build tree
 733 # Example: make test t=wcsmbs/test-wcsnlen
 734 .PHONY: test
 735 test :
 736         @-rm -f $(objpfx)$t.out
 737         $(MAKE) subdir=$(patsubst %/,%,$(dir $t)) -C $(dir $t) ..=../ $(objpfx)$t.out
 738         @cat $(objpfx)$t.test-result
 739         @cat $(objpfx)$t.out