linuxthreads/Makefile

   1 # Copyright (C) 1996-2001, 2002 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               libc-tsd.c
  30
  31 routines := weaks no-tsd
  32 shared-only-routines = weaks
  33
  34 extra-libs := libpthread
  35 extra-libs-others := $(extra-libs)
  36
  37 libpthread-routines := attr cancel condvar join manager mutex ptfork \
  38                        ptlongjmp pthread signals specific errno lockfile \
  39                        semaphore spinlock wrapsyscall rwlock pt-machine \
  40                        oldsemaphore events getcpuclockid pspinlock barrier \
  41                        ptclock_gettime ptclock_settime sighandler \
  42                        pthandles libc-tls-loc
  43
  44 nodelete-yes = -Wl,--enable-new-dtags,-z,nodelete
  45 initfirst-yes = -Wl,--enable-new-dtags,-z,initfirst
  46 LDFLAGS-pthread.so = $(nodelete-$(have-z-nodelete)) \
  47                      $(initfirst-$(have-z-initfirst))
  48
  49 vpath %.c Examples
  50
  51 tst-cancel-ARGS = "$(objpfx)"
  52 CFLAGS-tst-cancel.c = -fno-inline -fno-inline-functions
  53
  54 include ../Makeconfig
  55
  56 ifeq ($(build-shared),yes)
  57 extra-objs += crti.o crtn.o
  58 omit-deps += crti crtn
  59
  60 CFLAGS-pt-initfini.s = -g0 -fPIC -fno-inline-functions
  61 endif
  62
  63 librt-tests = ex10 ex11
  64 tests = ex1 ex2 ex3 ex4 ex5 ex6 ex7 ex8 ex9 $(librt-tests) ex12 ex13 joinrace \
  65         tststack $(tests-nodelete-$(have-z-nodelete)) ecmutex ex14 ex15 ex16 \
  66         ex17 ex18 tst-cancel tst-context bug-sleep
  67 test-srcs = tst-signal
  68
  69 ifeq ($(build-static),yes)
  70 tests += tststatic tst-static-locale
  71 tests-static += tststatic tst-static-locale
  72 endif
  73
  74 ifeq (yes,$(build-shared))
  75 tests-nodelete-yes = unload
  76 endif
  77
  78 include ../Rules
  79
  80 extra-B-pthread.so = -B$(common-objpfx)linuxthreads/
  81 $(objpfx)libpthread.so: $(objpfx)crti.o $(objpfx)crtn.o
  82 $(objpfx)libpthread.so: +preinit += $(objpfx)crti.o
  83 $(objpfx)libpthread.so: +postinit += $(objpfx)crtn.o
  84
  85 znodelete-yes = -DHAVE_Z_NODELETE
  86 CFLAGS-mutex.c += -D__NO_WEAK_PTHREAD_ALIASES
  87 CFLAGS-specific.c += -D__NO_WEAK_PTHREAD_ALIASES
  88 CFLAGS-pthread.c += -D__NO_WEAK_PTHREAD_ALIASES $(znodelete-$(have-z-nodelete))
  89 CFLAGS-ptfork.c += -D__NO_WEAK_PTHREAD_ALIASES
  90 CFLAGS-cancel.c += -D__NO_WEAK_PTHREAD_ALIASES -D_RPC_THREAD_SAFE_
  91 CFLAGS-unload.c += -DPREFIX=\"$(objpfx)\"
  92 CFLAGS-sighandler.c += $(exceptions)
  93
  94 ifeq (yes,$(versioning))
  95 -include $(common-objpfx)tls.make
  96 libc-ok-for-link = $(use-thread)
  97 else
  98 libc-ok-for-link = yes
  99 endif
 100
 101 ifeq (no,$(libc-ok-for-link))
 102 # These hacks are necessary to let us link against a libc.so that exports
 103 # the symbols _errno, _h_errno, and _res.  Those symbols are accessible
 104 # in libc at runtime (dynamic linkable), but are not exported at link time
 105 # so that applications cannot link against them.  However, libpthread.so
 106 # needs to link against them for its __errno_location et al functions to
 107 # find the locations that libc's symbols resolve to.  We cannot do this
 108 # with aliases in libc.so(GLIBC_PRIVATE), because we need to refer to an
 109 # executable's symbols when it defines them with copy relocs.
 110 libc-link.so = $(objpfx)libc.so
 111
 112 $(objpfx)libc_pic_lite.a: $(common-objpfx)libc_pic.a
 113         cp $< $@T
 114         $(AR) d $@T errno.os herrno.os res_libc.os
 115         mv -f $@T $@
 116
 117 extra-objs += libc-tsd.os
 118 $(objpfx)libc_pic_lite.os: $(objpfx)libc_pic_lite.a $(objpfx)libc-tsd.os
 119         $(LINK.o) -nostdlib -nostartfiles -r -o $@ \
 120                   $(LDFLAGS-c_pic.os) -Wl,-d -Wl,--whole-archive $^
 121
 122 $(objpfx)libc.so: $(elfobjdir)/soinit.os \
 123                   $(objpfx)libc_pic_lite.os \
 124                   $(elfobjdir)/sofini.os \
 125                   $(elfobjdir)/interp.os $(elfobjdir)/ld.so
 126         $(build-shlib)
 127
 128 generated += libc_pic_lite.a libc_pic_lite.os libc.so
 129 else
 130 libc-link.so = $(common-objpfx)libc.so
 131 endif
 132
 133 # Depend on libc.so so a DT_NEEDED is generated in the shared objects.
 134 # This ensures they will load libc.so for needed symbols if loaded by
 135 # a statically-linked program that hasn't already loaded it.
 136 $(objpfx)libpthread.so: $(libc-link.so) $(common-objpfx)libc_nonshared.a
 137
 138 # Make sure we link with the thread library.
 139 ifeq ($(build-shared),yes)
 140 $(addprefix $(objpfx), \
 141   $(filter-out $(tests-static) unload, \
 142     $(tests) $(test-srcs))): $(objpfx)libpthread.so
 143 $(addprefix $(objpfx),$(librt-tests)): $(common-objpfx)rt/librt.so
 144 $(objpfx)unload: $(common-objpfx)dlfcn/libdl.so
 145 $(objpfx)unload.out: $(objpfx)libpthread.so
 146 else
 147 $(addprefix $(objpfx),$(tests) $(test-srcs)): $(objpfx)libpthread.a
 148 $(addprefix $(objpfx),$(librt-tests)): $(common-objpfx)rt/librt.a
 149 endif
 150 ifeq ($(build-bounded),yes)
 151 $(tests:%=$(objpfx)%-bp): $(objpfx)libpthread_b.a
 152 $(librt-tests:%=$(objpfx)%-bp): $(common-objpfx)rt/librt_b.a
 153 endif
 154
 155 ifeq ($(build-static),yes)
 156 $(addprefix $(objpfx), $(tests-static)): $(objpfx)libpthread.a
 157 endif
 158
 159 ifeq ($(build-shared),yes)
 160 vpath pt-initfini.c $(full_config_sysdirs)
 161
 162 $(objpfx)pt-initfini.s: pt-initfini.c
 163         $(compile.c) -S $(CFLAGS-pt-initfini.s) -finhibit-size-directive \
 164                 $(patsubst -f%,-fno-%,$(exceptions)) -o $@
 165
 166 # We only have one kind of startup code files.  Static binaries and
 167 # shared libraries are build using the PIC version.
 168 $(objpfx)crti.S: $(objpfx)pt-initfini.s
 169         sed -n -e '1,/@HEADER_ENDS/p' \
 170                -e '/@_.*_PROLOG_BEGINS/,/@_.*_PROLOG_ENDS/p' \
 171                -e '/@TRAILER_BEGINS/,$$p' $< > $@
 172 $(objpfx)crtn.S: $(objpfx)pt-initfini.s
 173         sed -n -e '1,/@HEADER_ENDS/p' \
 174                -e '/@_.*_EPILOG_BEGINS/,/@_.*_EPILOG_ENDS/p' \
 175                -e '/@TRAILER_BEGINS/,$$p' $< > $@
 176
 177 $(objpfx)defs.h: $(objpfx)pt-initfini.s
 178         sed -n -e '/@TESTS_BEGIN/,/@TESTS_END/p' $< | \
 179                 $(AWK) -f ../csu/defs.awk > $@
 180
 181 $(objpfx)crti.o: $(objpfx)crti.S $(objpfx)defs.h
 182         $(compile.S) -g0 $(ASFLAGS-.os) -o $@
 183
 184 $(objpfx)crtn.o: $(objpfx)crtn.S $(objpfx)defs.h
 185         $(compile.S) -g0 $(ASFLAGS-.os) -o $@
 186
 187 generated += crti.S crtn.S defs.h pt-initfini.s
 188 endif
 189
 190 ifeq (yes,$(build-static-nss))
 191 otherlibs += $(nssobjdir)/libnss_files.a $(resolvobjdir)/libnss_dns.a \
 192              $(resolvobjdir)/libresolv.a
 193 endif
 194
 195 ifeq (no,$(cross-compiling))
 196 ifeq (yes,$(build-shared))
 197 tests: $(objpfx)tst-signal.out
 198 $(objpfx)tst-signal.out: tst-signal.sh $(objpfx)tst-signal
 199         $(SHELL) -e $< $(common-objpfx) > $@
 200 endif
 201 endif