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