linuxthreads/Makefile

   1 # Copyright (C) 1996-2002, 2003 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 linuxthreads-version := $(shell sed -n 's/^.*$(subdir)-\([0-9.]*\).*$$/\1/p' \
  25                                     Banner)
  26
  27 headers := pthread.h semaphore.h
  28 distribute := internals.h queue.h restart.h spinlock.h smp.h tst-signal.sh \
  29               tst-cancel-wrappers.sh libc-tsd.c
  30
  31 routines := forward alloca_cutoff libc-cancellation libc_pthread_init
  32 shared-only-routines = forward
  33
  34 extra-libs := libpthread
  35 extra-libs-others := $(extra-libs)
  36 install-lib-ldscripts := libpthread.so
  37
  38 libpthread-routines := attr cancel condvar join manager mutex ptfork \
  39                        ptlongjmp pthread pt-sigsuspend signals specific errno \
  40                        lockfile semaphore spinlock rwlock pt-machine \
  41                        oldsemaphore events getcpuclockid pspinlock barrier \
  42                        ptclock_gettime ptclock_settime sighandler \
  43                        pthandles libc-tls-loc pt-allocrtsig \
  44                        ptw-write ptw-read ptw-close ptw-fcntl ptw-accept \
  45                        ptw-connect ptw-recv ptw-recvfrom ptw-recvmsg \
  46                        ptw-send ptw-sendmsg ptw-sendto ptw-fsync ptw-lseek \
  47                        ptw-lseek64 ptw-llseek ptw-msync ptw-nanosleep \
  48                        ptw-open ptw-open64 ptw-pause ptw-pread ptw-pread64 \
  49                        ptw-pwrite ptw-pwrite64 ptw-tcdrain ptw-wait \
  50                        ptw-waitpid pt-system old_pthread_atfork pthread_atfork
  51 # Don't generate deps for calls with no sources.  See sysdeps/unix/Makefile.
  52 omit-deps = $(unix-syscalls:%=ptw-%)
  53
  54 libpthread-shared-only-routines = pt-allocrtsig
  55 libpthread-static-only-routines = pthread_atfork
  56
  57 libpthread-nonshared = pthread_atfork
  58
  59 CFLAGS-pthread_atfork.c = -DNOT_IN_libc
  60
  61 nodelete-yes = -Wl,--enable-new-dtags,-z,nodelete
  62 initfirst-yes = -Wl,--enable-new-dtags,-z,initfirst
  63 LDFLAGS-pthread.so = $(nodelete-$(have-z-nodelete)) \
  64                      $(initfirst-$(have-z-initfirst))
  65
  66 vpath %.c Examples
  67
  68 tst-cancel-ARGS = "$(objpfx)"
  69 CFLAGS-tst-cancel.c = -fno-inline -fno-inline-functions
  70
  71 include ../Makeconfig
  72
  73 ifeq ($(build-shared),yes)
  74 others: $(objpfx)libpthread_nonshared.a
  75 endif
  76
  77 $(objpfx)libpthread_nonshared.a: $(addprefix $(objpfx),$(addsuffix .os,$(libpthread-nonshared)))
  78         $(AR) $(ARFLAGS) $@ $^
  79
  80 ifeq ($(build-shared),yes)
  81
  82 # Set the `multidir' variable by grabbing the variable from the compiler.
  83 # We do it once and save the result in a generated makefile.
  84 -include $(objpfx)multidir.mk
  85 $(objpfx)multidir.mk: $(common-objpfx)config.make
  86         dir=`$(CC) $(CFLAGS) $(CPPFLAGS) -print-multi-directory`; \
  87         echo "multidir := $$dir" > $@T
  88         mv -f $@T $@
  89 generated += multidir.mk
  90
  91 crti-objs := crti.o
  92 crtn-objs := crtn.o
  93 ifneq (,$(patsubst .,,$(multidir)))
  94 generated-dirs := $(firstword $(subst /, , $(multidir)))
  95 crti-objs += $(multidir)/crti.o
  96 crtn-objs += $(multidir)/crtn.o
  97 omit-deps += $(multidir)/crti $(multidir)/crtn
  98 endif
  99 extra-objs += $(crti-objs) $(crtn-objs)
 100 omit-deps += crti crtn
 101
 102 CFLAGS-pt-initfini.s = -g0 -fPIC -fno-inline-functions
 103 endif
 104
 105 librt-tests = ex10 ex11
 106 tests = ex1 ex2 ex3 ex4 ex5 ex6 ex7 ex8 ex9 $(librt-tests) ex12 ex13 joinrace \
 107         tststack $(tests-nodelete-$(have-z-nodelete)) ecmutex ex14 ex15 ex16 \
 108         ex17 ex18 tst-cancel tst-context bug-sleep \
 109         tst-cancel1 tst-cancel2 tst-cancel3 tst-cancel4 tst-cancel5 \
 110         tst-cancel6 tst-cancel7 tst-popen tst-popen2
 111 test-srcs = tst-signal
 112 # These tests are linked with libc before libpthread
 113 tests-reverse += tst-cancel5
 114
 115 ifeq ($(build-static),yes)
 116 tests += tststatic tst-static-locale tst-cancel-static
 117 tests-static += tststatic tst-static-locale tst-cancel-static
 118 endif
 119
 120 ifeq (yes,$(build-shared))
 121 tests-nodelete-yes = unload
 122 endif
 123
 124 include ../Rules
 125
 126 # What we install as libpthread.so for programs to link against is in fact a
 127 # link script.  It contains references for the various libraries we need.
 128 # The libpthread.so object is not complete since some functions are only defined
 129 # in libpthread_nonshared.a.
 130 # We need to use absolute paths since otherwise local copies (if they exist)
 131 # of the files are taken by the linker.
 132 install: $(inst_libdir)/libpthread.so
 133 $(inst_libdir)/libpthread.so: $(common-objpfx)format.lds \
 134                               $(objpfx)libpthread.so$(libpthread.so-version) \
 135                               $(inst_libdir)/$(patsubst %,$(libtype.oS),\
 136                                                         $(libprefix)pthread) \
 137                               $(+force)
 138         (echo '/* GNU ld script';\
 139          echo '   Use the shared library, but some functions are only in';\
 140          echo '   the static library, so try that secondarily.  */';\
 141          cat $<; \
 142          echo 'GROUP ( $(slibdir)/libpthread.so$(libpthread.so-version)' \
 143               '$(libdir)/$(patsubst %,$(libtype.oS),$(libprefix)pthread)'\
 144               ')' \
 145         ) > $@.new
 146         mv -f $@.new $@
 147 $(inst_libdir)/libpthread_nonshared.a: $(objpfx)libpthread_nonshared.a
 148         $(do-install)
 149
 150
 151 extra-B-pthread.so = -B$(common-objpfx)linuxthreads/
 152 $(objpfx)libpthread.so: $(addprefix $(objpfx),$(crti-objs) $(crtn-objs))
 153 $(objpfx)libpthread.so: +preinit += $(addprefix $(objpfx),$(crti-objs))
 154 $(objpfx)libpthread.so: +postinit += $(addprefix $(objpfx),$(crtn-objs))
 155
 156 znodelete-yes = -DHAVE_Z_NODELETE
 157 CFLAGS-mutex.c += -D__NO_WEAK_PTHREAD_ALIASES
 158 CFLAGS-specific.c += -D__NO_WEAK_PTHREAD_ALIASES
 159 CFLAGS-pthread.c += -D__NO_WEAK_PTHREAD_ALIASES $(znodelete-$(have-z-nodelete))
 160 CFLAGS-ptfork.c += -D__NO_WEAK_PTHREAD_ALIASES
 161 CFLAGS-cancel.c += -D__NO_WEAK_PTHREAD_ALIASES -D_RPC_THREAD_SAFE_
 162 CFLAGS-unload.c += -DPREFIX=\"$(objpfx)\"
 163 CFLAGS-sighandler.c += $(exceptions)
 164
 165 ifeq (yes,$(versioning))
 166 -include $(common-objpfx)tls.make
 167 libc-ok-for-link = $(use-thread)
 168 else
 169 libc-ok-for-link = yes
 170 endif
 171
 172 ifeq (no,$(libc-ok-for-link))
 173 # These hacks are necessary to let us link against a libc.so that exports
 174 # the symbols _errno, _h_errno, and _res.  Those symbols are accessible
 175 # in libc at runtime (dynamic linkable), but are not exported at link time
 176 # so that applications cannot link against them.  However, libpthread.so
 177 # needs to link against them for its __errno_location et al functions to
 178 # find the locations that libc's symbols resolve to.  We cannot do this
 179 # with aliases in libc.so(GLIBC_PRIVATE), because we need to refer to an
 180 # executable's symbols when it defines them with copy relocs.
 181 libc-link.so = $(objpfx)libc.so
 182
 183 $(objpfx)libc_pic_lite.a: $(common-objpfx)libc_pic.a
 184         cp $< $@T
 185         $(AR) d $@T errno.os herrno.os res_libc.os
 186         mv -f $@T $@
 187
 188 extra-objs += libc-tsd.os
 189 $(objpfx)libc_pic_lite.os: $(objpfx)libc_pic_lite.a $(objpfx)libc-tsd.os
 190         $(LINK.o) -nostdlib -nostartfiles -r -o $@ \
 191                   $(LDFLAGS-c_pic.os) -Wl,-d -Wl,--whole-archive $^
 192
 193 # This trick leaves errno and h_errno undefined.
 194 libc.so-no-z-defs = yes
 195
 196 $(objpfx)libc.so: $(elfobjdir)/soinit.os \
 197                   $(objpfx)libc_pic_lite.os \
 198                   $(elfobjdir)/sofini.os \
 199                   $(elfobjdir)/interp.os $(elfobjdir)/ld.so
 200         $(build-shlib)
 201
 202 generated += libc_pic_lite.a libc_pic_lite.os libc.so
 203 else
 204 libc-link.so = $(common-objpfx)libc.so
 205 endif
 206
 207 # Depend on libc.so so a DT_NEEDED is generated in the shared objects.
 208 # This ensures they will load libc.so for needed symbols if loaded by
 209 # a statically-linked program that hasn't already loaded it.
 210 # Depend on ld.so too to get proper versions of ld.so symbols.
 211 $(objpfx)libpthread.so: $(libc-link.so) $(common-objpfx)libc_nonshared.a \
 212                         $(if $(filter yes,$(elf)), $(elfobjdir)/ld.so)
 213
 214 # Make sure we link with the thread library.
 215 ifeq ($(build-shared),yes)
 216 $(addprefix $(objpfx), \
 217   $(filter-out $(tests-static) $(tests-reverse) unload, \
 218     $(tests) $(test-srcs))): $(objpfx)libpthread.so \
 219                              $(objpfx)libpthread_nonshared.a
 220 # $(objpfx)../libc.so is used instead of $(common-objpfx)libc.so,
 221 # since otherwise libpthread.so comes before libc.so when linking.
 222 $(addprefix $(objpfx), $(tests-reverse)): \
 223   $(objpfx)../libc.so $(objpfx)libpthread.so \
 224   $(objpfx)libpthread_nonshared.a
 225 $(addprefix $(objpfx),$(librt-tests)): $(common-objpfx)rt/librt.so
 226 $(objpfx)unload: $(common-objpfx)dlfcn/libdl.so
 227 $(objpfx)unload.out: $(objpfx)libpthread.so $(objpfx)libpthread_nonshared.a
 228 else
 229 $(addprefix $(objpfx),$(tests) $(test-srcs)): $(objpfx)libpthread.a
 230 $(addprefix $(objpfx),$(librt-tests)): $(common-objpfx)rt/librt.a
 231 endif
 232 ifeq ($(build-bounded),yes)
 233 $(tests:%=$(objpfx)%-bp): $(objpfx)libpthread_b.a
 234 $(librt-tests:%=$(objpfx)%-bp): $(common-objpfx)rt/librt_b.a
 235 endif
 236
 237 ifeq ($(build-static),yes)
 238 $(addprefix $(objpfx), $(tests-static)): $(objpfx)libpthread.a
 239 endif
 240
 241 ifeq ($(build-shared),yes)
 242 vpath pt-initfini.c $(full_config_sysdirs)
 243
 244 $(objpfx)pt-initfini.s: pt-initfini.c
 245         $(compile.c) -S $(CFLAGS-pt-initfini.s) -finhibit-size-directive \
 246                 $(patsubst -f%,-fno-%,$(exceptions)) -o $@
 247
 248 # We only have one kind of startup code files.  Static binaries and
 249 # shared libraries are build using the PIC version.
 250 $(objpfx)crti.S: $(objpfx)pt-initfini.s
 251         sed -n -e '1,/@HEADER_ENDS/p' \
 252                -e '/@_.*_PROLOG_BEGINS/,/@_.*_PROLOG_ENDS/p' \
 253                -e '/@TRAILER_BEGINS/,$$p' $< > $@
 254 $(objpfx)crtn.S: $(objpfx)pt-initfini.s
 255         sed -n -e '1,/@HEADER_ENDS/p' \
 256                -e '/@_.*_EPILOG_BEGINS/,/@_.*_EPILOG_ENDS/p' \
 257                -e '/@TRAILER_BEGINS/,$$p' $< > $@
 258
 259 $(objpfx)defs.h: $(objpfx)pt-initfini.s
 260         sed -n -e '/@TESTS_BEGIN/,/@TESTS_END/p' $< | \
 261                 $(AWK) -f ../csu/defs.awk > $@
 262
 263 $(objpfx)crti.o: $(objpfx)crti.S $(objpfx)defs.h
 264         $(compile.S) -g0 $(ASFLAGS-.os) -o $@
 265
 266 $(objpfx)crtn.o: $(objpfx)crtn.S $(objpfx)defs.h
 267         $(compile.S) -g0 $(ASFLAGS-.os) -o $@
 268
 269 ifneq ($(multidir),.)
 270 $(objpfx)$(multidir):
 271         @mkdir -p $(objpfx)$(multidir)
 272
 273 $(objpfx)$(multidir)/crti.o: $(objpfx)crti.o $(objpfx)$(multidir)
 274         ln -f $< $@
 275
 276 $(objpfx)$(multidir)/crtn.o: $(objpfx)crtn.o $(objpfx)$(multidir)
 277         ln -f $< $@
 278 endif
 279
 280 generated += crti.S crtn.S defs.h pt-initfini.s
 281 endif
 282
 283 ifeq (yes,$(build-static-nss))
 284 otherlibs += $(nssobjdir)/libnss_files.a $(resolvobjdir)/libnss_dns.a \
 285              $(resolvobjdir)/libresolv.a
 286 endif
 287
 288 ifeq (no,$(cross-compiling))
 289 ifeq (yes,$(build-shared))
 290 tests: $(objpfx)tst-signal.out $(objpfx)tst-cancel-wrappers.out
 291 $(objpfx)tst-signal.out: tst-signal.sh $(objpfx)tst-signal
 292         $(SHELL) -e $< $(common-objpfx) > $@
 293 $(objpfx)tst-cancel-wrappers.out: tst-cancel-wrappers.sh
 294         $(SHELL) $< $(common-objpfx)/libc_pic.a \
 295                     $(common-objpfx)/libc.a \
 296                     $(objpfx)/libpthread_pic.a \
 297                     $(objpfx)/libpthread.a > $@
 298 endif
 299 endif