linuxthreads/Makefile

   1 # Copyright (C) 1996-2003, 2004 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, write to the Free
  16 # Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  17 # 02111-1307 USA.
  18
  19 #
  20 #       Sub-makefile for linuxthreads portion of the library.
  21 #
  22 subdir  := linuxthreads
  23
  24 all: # Make this the default target; it will be defined in Rules.
  25
  26 linuxthreads-version := $(shell sed -n 's/^.*$(subdir)-\([0-9.]*\).*$$/\1/p' \
  27                                     Banner)
  28 libpthread-abi-frozen := GLIBC_2.3.2
  29
  30 headers := pthread.h semaphore.h
  31 distribute := internals.h queue.h restart.h spinlock.h smp.h tst-signal.sh \
  32               tst-cancel-wrappers.sh libc-tsd.c
  33
  34 routines := forward alloca_cutoff libc-cancellation libc_pthread_init
  35 shared-only-routines = forward
  36
  37 extra-libs := libpthread
  38 extra-libs-others := $(extra-libs)
  39 install-lib-ldscripts := libpthread.so
  40
  41 libpthread-routines := attr cancel condvar join manager mutex ptfork \
  42                        ptlongjmp pthread pt-sigsuspend signals specific errno \
  43                        lockfile semaphore spinlock rwlock pt-machine \
  44                        oldsemaphore events getcpuclockid pspinlock barrier \
  45                        ptclock_gettime ptclock_settime sighandler \
  46                        pthandles libc-tls-loc pt-allocrtsig \
  47                        ptw-write ptw-read ptw-close ptw-fcntl ptw-accept \
  48                        ptw-connect ptw-recv ptw-recvfrom ptw-recvmsg \
  49                        ptw-send ptw-sendmsg ptw-sendto ptw-fsync ptw-lseek \
  50                        ptw-lseek64 ptw-llseek ptw-msync ptw-nanosleep \
  51                        ptw-open ptw-open64 ptw-pause ptw-pread ptw-pread64 \
  52                        ptw-pwrite ptw-pwrite64 ptw-tcdrain ptw-wait \
  53                        ptw-waitpid pt-system old_pthread_atfork pthread_atfork \
  54                        ptcleanup
  55 #                      pthread_setuid pthread_seteuid pthread_setreuid \
  56 #                      pthread_setresuid \
  57 #                      pthread_setgid pthread_setegid pthread_setregid \
  58 #                      pthread_setresgid
  59
  60 # Don't generate deps for calls with no sources.  See sysdeps/unix/Makefile.
  61 omit-deps = $(unix-syscalls:%=ptw-%)
  62
  63 libpthread-shared-only-routines = pt-allocrtsig
  64 libpthread-static-only-routines = pthread_atfork
  65
  66 linuxthreads-CPPFLAGS = -DIS_IN_linuxthreads=1
  67
  68 CFLAGS-pthread_atfork.c = -DNOT_IN_libc
  69
  70 nodelete-yes = -Wl,--enable-new-dtags,-z,nodelete
  71 initfirst-yes = -Wl,--enable-new-dtags,-z,initfirst
  72 LDFLAGS-pthread.so = $(nodelete-$(have-z-nodelete)) \
  73                      $(initfirst-$(have-z-initfirst))
  74
  75 vpath %.c Examples
  76
  77 tst-cancel-ARGS = "$(objpfx)"
  78 CFLAGS-tst-cancel.c = -fno-inline -fno-inline-functions
  79
  80 include ../Makeconfig
  81
  82 ifeq ($(build-shared),yes)
  83
  84 # Set the `multidir' variable by grabbing the variable from the compiler.
  85 # We do it once and save the result in a generated makefile.
  86 -include $(objpfx)multidir.mk
  87 $(objpfx)multidir.mk: $(common-objpfx)config.make
  88         $(make-target-directory)
  89         dir=`$(CC) $(CFLAGS) $(CPPFLAGS) -print-multi-directory`; \
  90         echo "multidir := $$dir" > $@T
  91         mv -f $@T $@
  92 generated += multidir.mk
  93
  94 crti-objs := crti.o
  95 crtn-objs := crtn.o
  96 ifneq (,$(patsubst .,,$(multidir)))
  97 generated-dirs := $(firstword $(subst /, , $(multidir)))
  98 crti-objs += $(multidir)/crti.o
  99 crtn-objs += $(multidir)/crtn.o
 100 omit-deps += $(multidir)/crti $(multidir)/crtn
 101 endif
 102 extra-objs += $(crti-objs) $(crtn-objs)
 103 omit-deps += crti crtn
 104
 105 CFLAGS-pt-initfini.s = -g0 -fPIC -fno-inline-functions $(fno-unit-at-a-time)
 106 endif
 107
 108 librt-tests = ex10 ex11 tst-clock1
 109 tests = ex1 ex2 ex3 ex4 ex5 ex6 ex7 ex8 ex9 $(librt-tests) ex12 ex13 joinrace \
 110         tststack $(tests-nodelete-$(have-z-nodelete)) ecmutex ex14 ex15 ex16 \
 111         ex17 ex18 tst-cancel tst-context bug-sleep \
 112         tst-cancel1 tst-cancel2 tst-cancel3 tst-cancel4 tst-cancel5 \
 113         tst-cancel6 tst-cancel7 tst-cancel8 tst-popen tst-popen2 tst-attr1 \
 114         tst-stack1 tst-align tst-tsd1
 115 test-srcs = tst-signal
 116 # These tests are linked with libc before libpthread
 117 tests-reverse += tst-cancel5
 118
 119 ifeq ($(build-static),yes)
 120 tests += tststatic tst-static-locale tst-cancel-static
 121 tests-static += tststatic tst-static-locale tst-cancel-static
 122 endif
 123
 124 ifeq (yes,$(build-shared))
 125 tests-nodelete-yes = unload
 126 tests += tst-tls1 tst-_res1
 127 endif
 128
 129 modules-names = tst-_res1mod1 tst-_res1mod2 \
 130                 tst-tls1mod tst-tls1moda tst-tls1modb tst-tls1modc \
 131                 tst-tls1modd tst-tls1mode tst-tls1modf
 132 extra-objs += $(addsuffix .os,$(strip $(modules-names)))
 133 generated += $(addsuffix .so,$(strip $(modules-names)))
 134 test-extras += $(modules-names)
 135 test-modules = $(addprefix $(objpfx),$(addsuffix .so,$(modules-names)))
 136
 137 tst-tls1mod.so-no-z-defs = yes
 138 tst-tls1moda.so-no-z-defs = yes
 139 tst-tls1modb.so-no-z-defs = yes
 140 tst-tls1modc.so-no-z-defs = yes
 141 tst-tls1modd.so-no-z-defs = yes
 142 tst-tls1mode.so-no-z-defs = yes
 143 tst-tls1modf.so-no-z-defs = yes
 144
 145 $(test-modules): $(objpfx)%.so: $(objpfx)%.os $(common-objpfx)shlib.lds
 146         $(build-module)
 147
 148 ifeq ($(build-shared),yes)
 149 # Build all the modules even when not actually running test programs.
 150 tests: $(test-modules)
 151 endif
 152
 153 # What we install as libpthread.so for programs to link against is in fact a
 154 # link script.  It contains references for the various libraries we need.
 155 # The libpthread.so object is not complete since some functions are only defined
 156 # in libpthread_nonshared.a.
 157 # We need to use absolute paths since otherwise local copies (if they exist)
 158 # of the files are taken by the linker.
 159 install: $(inst_libdir)/libpthread.so
 160 $(inst_libdir)/libpthread.so: $(common-objpfx)format.lds \
 161                               $(objpfx)libpthread.so$(libpthread.so-version) \
 162                               $(inst_libdir)/$(patsubst %,$(libtype.oS),\
 163                                                         $(libprefix)pthread) \
 164                               $(+force)
 165         (echo '/* GNU ld script';\
 166          echo '   Use the shared library, but some functions are only in';\
 167          echo '   the static library, so try that secondarily.  */';\
 168          cat $<; \
 169          echo 'GROUP ( $(slibdir)/libpthread.so$(libpthread.so-version)' \
 170               '$(libdir)/$(patsubst %,$(libtype.oS),$(libprefix)pthread)'\
 171               ')' \
 172         ) > $@.new
 173         mv -f $@.new $@
 174
 175
 176 extra-B-pthread.so = -B$(common-objpfx)linuxthreads/
 177 $(objpfx)libpthread.so: $(addprefix $(objpfx),$(crti-objs) $(crtn-objs))
 178 $(objpfx)libpthread.so: +preinit += $(addprefix $(objpfx),$(crti-objs))
 179 $(objpfx)libpthread.so: +postinit += $(addprefix $(objpfx),$(crtn-objs))
 180
 181 znodelete-yes = -DHAVE_Z_NODELETE
 182 CFLAGS-mutex.c += -D__NO_WEAK_PTHREAD_ALIASES
 183 CFLAGS-specific.c += -D__NO_WEAK_PTHREAD_ALIASES
 184 CFLAGS-pthread.c += -D__NO_WEAK_PTHREAD_ALIASES $(znodelete-$(have-z-nodelete))
 185 CFLAGS-ptfork.c += -D__NO_WEAK_PTHREAD_ALIASES
 186 CFLAGS-cancel.c += -D__NO_WEAK_PTHREAD_ALIASES -D_RPC_THREAD_SAFE_
 187 CFLAGS-unload.c += -DPREFIX=\"$(objpfx)\"
 188 CFLAGS-mutex.c += $(uses-callbacks)
 189 CFLAGS-sighandler.c += $(uses-callbacks)
 190
 191 ifeq (yes,$(versioning))
 192 -include $(common-objpfx)tls.make
 193 libc-ok-for-link = $(use-thread)
 194 else
 195 libc-ok-for-link = yes
 196 endif
 197
 198 ifeq (no,$(libc-ok-for-link))
 199 # These hacks are necessary to let us link against a libc.so that exports
 200 # the symbols _errno, _h_errno, and _res.  Those symbols are accessible
 201 # in libc at runtime (dynamic linkable), but are not exported at link time
 202 # so that applications cannot link against them.  However, libpthread.so
 203 # needs to link against them for its __errno_location et al functions to
 204 # find the locations that libc's symbols resolve to.  We cannot do this
 205 # with aliases in libc.so(GLIBC_PRIVATE), because we need to refer to an
 206 # executable's symbols when it defines them with copy relocs.
 207 libc-link.so = $(objpfx)libc.so
 208
 209 $(objpfx)libc_pic_lite.a: $(common-objpfx)libc_pic.a
 210         cp $< $@T
 211         $(AR) d $@T errno.os herrno.os res_libc.os
 212         mv -f $@T $@
 213
 214 extra-objs += libc-tsd.os
 215 $(objpfx)libc_pic_lite.os: $(objpfx)libc_pic_lite.a $(objpfx)libc-tsd.os
 216         $(LINK.o) -nostdlib -nostartfiles -r -o $@ \
 217                   $(LDFLAGS-c_pic.os) -Wl,-d -Wl,--whole-archive $^
 218
 219 # This trick leaves errno and h_errno undefined.
 220 libc.so-no-z-defs = yes
 221
 222 $(objpfx)libc.so: $(elfobjdir)/soinit.os \
 223                   $(objpfx)libc_pic_lite.os \
 224                   $(elfobjdir)/sofini.os \
 225                   $(elfobjdir)/interp.os $(elfobjdir)/ld.so
 226         $(build-shlib)
 227
 228 generated += libc_pic_lite.a libc_pic_lite.os libc.so libc-tsd.os
 229 else
 230 libc-link.so = $(common-objpfx)libc.so
 231 endif
 232
 233 include ../Rules
 234
 235 # Depend on libc.so so a DT_NEEDED is generated in the shared objects.
 236 # This ensures they will load libc.so for needed symbols if loaded by
 237 # a statically-linked program that hasn't already loaded it.
 238 # Depend on ld.so too to get proper versions of ld.so symbols.
 239 $(objpfx)libpthread.so: $(libc-link.so) $(common-objpfx)libc_nonshared.a \
 240                         $(if $(filter yes,$(elf)), $(elfobjdir)/ld.so)
 241
 242 # Make sure we link with the thread library.
 243 ifeq ($(build-shared),yes)
 244 $(addprefix $(objpfx), \
 245   $(filter-out $(tests-static) $(tests-reverse) unload, \
 246     $(tests) $(test-srcs))): $(objpfx)libpthread.so \
 247                              $(objpfx)libpthread_nonshared.a
 248 # $(objpfx)../libc.so is used instead of $(common-objpfx)libc.so,
 249 # since otherwise libpthread.so comes before libc.so when linking.
 250 $(addprefix $(objpfx), $(tests-reverse)): \
 251   $(objpfx)../libc.so $(objpfx)libpthread.so \
 252   $(objpfx)libpthread_nonshared.a
 253 $(objpfx)../libc.so: $(common-objpfx)libc.so ;
 254 $(addprefix $(objpfx),$(librt-tests)): $(common-objpfx)rt/librt.so
 255 $(objpfx)unload: $(common-objpfx)dlfcn/libdl.so
 256 $(objpfx)unload.out: $(objpfx)libpthread.so $(objpfx)libpthread_nonshared.a
 257 else
 258 $(addprefix $(objpfx),$(tests) $(test-srcs)): $(objpfx)libpthread.a
 259 $(addprefix $(objpfx),$(librt-tests)): $(common-objpfx)rt/librt.a
 260 endif
 261 ifeq ($(build-bounded),yes)
 262 $(tests:%=$(objpfx)%-bp): $(objpfx)libpthread_b.a
 263 $(librt-tests:%=$(objpfx)%-bp): $(common-objpfx)rt/librt_b.a
 264 endif
 265
 266 ifeq ($(build-static),yes)
 267 $(addprefix $(objpfx), $(tests-static)): $(objpfx)libpthread.a
 268 endif
 269
 270 ifeq ($(build-shared),yes)
 271 vpath pt-initfini.c $(full_config_sysdirs)
 272
 273 $(objpfx)pt-initfini.s: pt-initfini.c
 274         $(compile.c) -S $(CFLAGS-pt-initfini.s) -finhibit-size-directive \
 275                 $(patsubst -f%,-fno-%,$(exceptions)) -o $@
 276
 277 # We only have one kind of startup code files.  Static binaries and
 278 # shared libraries are build using the PIC version.
 279 $(objpfx)crti.S: $(objpfx)pt-initfini.s
 280         sed -n -e '1,/@HEADER_ENDS/p' \
 281                -e '/@_.*_PROLOG_BEGINS/,/@_.*_PROLOG_ENDS/p' \
 282                -e '/@TRAILER_BEGINS/,$$p' $< > $@
 283 $(objpfx)crtn.S: $(objpfx)pt-initfini.s
 284         sed -n -e '1,/@HEADER_ENDS/p' \
 285                -e '/@_.*_EPILOG_BEGINS/,/@_.*_EPILOG_ENDS/p' \
 286                -e '/@TRAILER_BEGINS/,$$p' $< > $@
 287
 288 $(objpfx)defs.h: $(objpfx)pt-initfini.s
 289         sed -n -e '/@TESTS_BEGIN/,/@TESTS_END/p' $< | \
 290                 $(AWK) -f ../csu/defs.awk > $@
 291
 292 $(objpfx)crti.o: $(objpfx)crti.S $(objpfx)defs.h
 293         $(compile.S) -g0 $(ASFLAGS-.os) -o $@
 294
 295 $(objpfx)crtn.o: $(objpfx)crtn.S $(objpfx)defs.h
 296         $(compile.S) -g0 $(ASFLAGS-.os) -o $@
 297
 298 ifneq ($(multidir),.)
 299 $(objpfx)$(multidir):
 300         @mkdir -p $(objpfx)$(multidir)
 301
 302 $(objpfx)$(multidir)/crti.o: $(objpfx)crti.o $(objpfx)$(multidir)
 303         ln -f $< $@
 304
 305 $(objpfx)$(multidir)/crtn.o: $(objpfx)crtn.o $(objpfx)$(multidir)
 306         ln -f $< $@
 307 endif
 308
 309 generated += crti.S crtn.S defs.h pt-initfini.s libpthread_nonshared.a
 310 endif
 311
 312 ifeq (yes,$(build-static-nss))
 313 otherlibs += $(nssobjdir)/libnss_files.a $(resolvobjdir)/libnss_dns.a \
 314              $(resolvobjdir)/libresolv.a
 315 endif
 316
 317 ifeq (yes,$(build-shared))
 318 $(objpfx)tst-_res1mod2.so: $(objpfx)tst-_res1mod1.so
 319 $(objpfx)tst-_res1: $(objpfx)tst-_res1mod2.so $(shared-thread-library)
 320
 321 $(objpfx)tst-tls1: $(objpfx)tst-tls1mod.so $(shared-thread-library)
 322
 323 tests: $(objpfx)tst-tls2.out
 324 $(objpfx)tst-tls2.out: tst-tls2.sh $(objpfx)tst-tls1 \
 325                        $(objpfx)tst-tls1moda.so $(objpfx)tst-tls1modb.so \
 326                        $(objpfx)tst-tls1modc.so $(objpfx)tst-tls1modd.so \
 327                        $(objpfx)tst-tls1mode.so $(objpfx)tst-tls1modf.so
 328         $(SHELL) -e tst-tls2.sh $(common-objpfx) $(elf-objpfx) \
 329                     $(rtld-installed-name)
 330 generated += tst-tls2.out
 331 endif
 332
 333 ifeq (no,$(cross-compiling))
 334 ifeq (yes,$(build-shared))
 335 tests: $(objpfx)tst-signal.out $(objpfx)tst-cancel-wrappers.out
 336 $(objpfx)tst-signal.out: tst-signal.sh $(objpfx)tst-signal
 337         $(SHELL) -e $< $(common-objpfx) > $@
 338 $(objpfx)tst-cancel-wrappers.out: tst-cancel-wrappers.sh
 339         $(SHELL) $< $(common-objpfx)/libc_pic.a \
 340                     $(common-objpfx)/libc.a \
 341                     $(objpfx)/libpthread_pic.a \
 342                     $(objpfx)/libpthread.a > $@
 343 generated += tst-signal.out tst-cancel-wrappers.out
 344 endif
 345 endif