mirror of
https://sourceware.org/git/glibc.git
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349 lines
12 KiB
Makefile
349 lines
12 KiB
Makefile
# Copyright (C) 1996-2003, 2004 Free Software Foundation, Inc.
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# This file is part of the GNU C Library.
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# The GNU C Library is free software; you can redistribute it and/or
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# modify it under the terms of the GNU Lesser General Public
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# License as published by the Free Software Foundation; either
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# version 2.1 of the License, or (at your option) any later version.
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# The GNU C Library is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# Lesser General Public License for more details.
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# You should have received a copy of the GNU Lesser General Public
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# License along with the GNU C Library; if not, write to the Free
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# Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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# 02111-1307 USA.
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#
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# Sub-makefile for linuxthreads portion of the library.
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#
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subdir := linuxthreads
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all: # Make this the default target; it will be defined in Rules.
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linuxthreads-version := $(shell sed -n 's/^.*$(subdir)-\([0-9.]*\).*$$/\1/p' \
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Banner)
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headers := pthread.h semaphore.h
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distribute := internals.h queue.h restart.h spinlock.h smp.h tst-signal.sh \
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tst-cancel-wrappers.sh libc-tsd.c
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routines := forward alloca_cutoff libc-cancellation libc_pthread_init
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shared-only-routines = forward
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extra-libs := libpthread
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extra-libs-others := $(extra-libs)
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install-lib-ldscripts := libpthread.so
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libpthread-routines := attr cancel condvar join manager mutex ptfork \
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ptlongjmp pthread pt-sigsuspend signals specific errno \
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lockfile semaphore spinlock rwlock pt-machine \
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oldsemaphore events getcpuclockid pspinlock barrier \
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ptclock_gettime ptclock_settime sighandler \
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pthandles libc-tls-loc pt-allocrtsig \
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ptw-write ptw-read ptw-close ptw-fcntl ptw-accept \
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ptw-connect ptw-recv ptw-recvfrom ptw-recvmsg \
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ptw-send ptw-sendmsg ptw-sendto ptw-fsync ptw-lseek \
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ptw-lseek64 ptw-llseek ptw-msync ptw-nanosleep \
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ptw-open ptw-open64 ptw-pause ptw-pread ptw-pread64 \
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ptw-pwrite ptw-pwrite64 ptw-tcdrain ptw-wait \
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ptw-waitpid pt-system old_pthread_atfork pthread_atfork \
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ptcleanup
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# Don't generate deps for calls with no sources. See sysdeps/unix/Makefile.
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omit-deps = $(unix-syscalls:%=ptw-%)
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libpthread-shared-only-routines = pt-allocrtsig
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libpthread-static-only-routines = pthread_atfork
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libpthread-nonshared = pthread_atfork
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CFLAGS-pthread_atfork.c = -DNOT_IN_libc
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nodelete-yes = -Wl,--enable-new-dtags,-z,nodelete
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initfirst-yes = -Wl,--enable-new-dtags,-z,initfirst
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LDFLAGS-pthread.so = $(nodelete-$(have-z-nodelete)) \
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$(initfirst-$(have-z-initfirst))
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vpath %.c Examples
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tst-cancel-ARGS = "$(objpfx)"
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CFLAGS-tst-cancel.c = -fno-inline -fno-inline-functions
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include ../Makeconfig
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ifeq ($(build-shared),yes)
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others: $(objpfx)libpthread_nonshared.a
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endif
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$(objpfx)libpthread_nonshared.a: $(addprefix $(objpfx),$(addsuffix .os,$(libpthread-nonshared)))
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$(AR) $(ARFLAGS) $@ $^
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ifeq ($(build-shared),yes)
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# Set the `multidir' variable by grabbing the variable from the compiler.
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# We do it once and save the result in a generated makefile.
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-include $(objpfx)multidir.mk
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$(objpfx)multidir.mk: $(common-objpfx)config.make
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$(make-target-directory)
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dir=`$(CC) $(CFLAGS) $(CPPFLAGS) -print-multi-directory`; \
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echo "multidir := $$dir" > $@T
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mv -f $@T $@
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generated += multidir.mk
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crti-objs := crti.o
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crtn-objs := crtn.o
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ifneq (,$(patsubst .,,$(multidir)))
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generated-dirs := $(firstword $(subst /, , $(multidir)))
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crti-objs += $(multidir)/crti.o
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crtn-objs += $(multidir)/crtn.o
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omit-deps += $(multidir)/crti $(multidir)/crtn
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endif
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extra-objs += $(crti-objs) $(crtn-objs)
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omit-deps += crti crtn
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CFLAGS-pt-initfini.s = -g0 -fPIC -fno-inline-functions $(fno-unit-at-a-time)
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endif
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librt-tests = ex10 ex11 tst-clock1
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tests = ex1 ex2 ex3 ex4 ex5 ex6 ex7 ex8 ex9 $(librt-tests) ex12 ex13 joinrace \
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tststack $(tests-nodelete-$(have-z-nodelete)) ecmutex ex14 ex15 ex16 \
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ex17 ex18 tst-cancel tst-context bug-sleep \
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tst-cancel1 tst-cancel2 tst-cancel3 tst-cancel4 tst-cancel5 \
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tst-cancel6 tst-cancel7 tst-cancel8 tst-popen tst-popen2 tst-attr1 \
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tst-stack1
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test-srcs = tst-signal
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# These tests are linked with libc before libpthread
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tests-reverse += tst-cancel5
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ifeq ($(build-static),yes)
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tests += tststatic tst-static-locale tst-cancel-static
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tests-static += tststatic tst-static-locale tst-cancel-static
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endif
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ifeq (yes,$(build-shared))
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tests-nodelete-yes = unload
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tests += tst-tls1 tst-_res1
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endif
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modules-names = tst-_res1mod1 tst-_res1mod2 \
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tst-tls1mod tst-tls1moda tst-tls1modb tst-tls1modc \
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tst-tls1modd tst-tls1mode tst-tls1modf
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extra-objs += $(addsuffix .os,$(strip $(modules-names)))
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generated += $(addsuffix .so,$(strip $(modules-names)))
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test-extras += $(modules-names)
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test-modules = $(addprefix $(objpfx),$(addsuffix .so,$(modules-names)))
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tst-tls1mod.so-no-z-defs = yes
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tst-tls1moda.so-no-z-defs = yes
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tst-tls1modb.so-no-z-defs = yes
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tst-tls1modc.so-no-z-defs = yes
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tst-tls1modd.so-no-z-defs = yes
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tst-tls1mode.so-no-z-defs = yes
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tst-tls1modf.so-no-z-defs = yes
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$(test-modules): $(objpfx)%.so: $(objpfx)%.os $(common-objpfx)shlib.lds
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$(build-module)
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ifeq ($(build-shared),yes)
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# Build all the modules even when not actually running test programs.
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tests: $(test-modules)
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endif
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# What we install as libpthread.so for programs to link against is in fact a
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# link script. It contains references for the various libraries we need.
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# The libpthread.so object is not complete since some functions are only defined
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# in libpthread_nonshared.a.
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# We need to use absolute paths since otherwise local copies (if they exist)
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# of the files are taken by the linker.
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install: $(inst_libdir)/libpthread.so
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$(inst_libdir)/libpthread.so: $(common-objpfx)format.lds \
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$(objpfx)libpthread.so$(libpthread.so-version) \
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$(inst_libdir)/$(patsubst %,$(libtype.oS),\
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$(libprefix)pthread) \
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$(+force)
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(echo '/* GNU ld script';\
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echo ' Use the shared library, but some functions are only in';\
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echo ' the static library, so try that secondarily. */';\
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cat $<; \
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echo 'GROUP ( $(slibdir)/libpthread.so$(libpthread.so-version)' \
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'$(libdir)/$(patsubst %,$(libtype.oS),$(libprefix)pthread)'\
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')' \
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) > $@.new
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mv -f $@.new $@
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$(inst_libdir)/libpthread_nonshared.a: $(objpfx)libpthread_nonshared.a
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$(do-install)
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extra-B-pthread.so = -B$(common-objpfx)linuxthreads/
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$(objpfx)libpthread.so: $(addprefix $(objpfx),$(crti-objs) $(crtn-objs))
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$(objpfx)libpthread.so: +preinit += $(addprefix $(objpfx),$(crti-objs))
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$(objpfx)libpthread.so: +postinit += $(addprefix $(objpfx),$(crtn-objs))
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znodelete-yes = -DHAVE_Z_NODELETE
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CFLAGS-mutex.c += -D__NO_WEAK_PTHREAD_ALIASES
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CFLAGS-specific.c += -D__NO_WEAK_PTHREAD_ALIASES
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CFLAGS-pthread.c += -D__NO_WEAK_PTHREAD_ALIASES $(znodelete-$(have-z-nodelete))
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CFLAGS-ptfork.c += -D__NO_WEAK_PTHREAD_ALIASES
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CFLAGS-cancel.c += -D__NO_WEAK_PTHREAD_ALIASES -D_RPC_THREAD_SAFE_
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CFLAGS-unload.c += -DPREFIX=\"$(objpfx)\"
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CFLAGS-mutex.c += $(uses-callbacks)
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CFLAGS-sighandler.c += $(uses-callbacks)
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ifeq (yes,$(versioning))
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-include $(common-objpfx)tls.make
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libc-ok-for-link = $(use-thread)
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else
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libc-ok-for-link = yes
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endif
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ifeq (no,$(libc-ok-for-link))
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# These hacks are necessary to let us link against a libc.so that exports
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# the symbols _errno, _h_errno, and _res. Those symbols are accessible
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# in libc at runtime (dynamic linkable), but are not exported at link time
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# so that applications cannot link against them. However, libpthread.so
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# needs to link against them for its __errno_location et al functions to
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# find the locations that libc's symbols resolve to. We cannot do this
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# with aliases in libc.so(GLIBC_PRIVATE), because we need to refer to an
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# executable's symbols when it defines them with copy relocs.
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libc-link.so = $(objpfx)libc.so
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$(objpfx)libc_pic_lite.a: $(common-objpfx)libc_pic.a
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cp $< $@T
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$(AR) d $@T errno.os herrno.os res_libc.os
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mv -f $@T $@
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extra-objs += libc-tsd.os
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$(objpfx)libc_pic_lite.os: $(objpfx)libc_pic_lite.a $(objpfx)libc-tsd.os
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$(LINK.o) -nostdlib -nostartfiles -r -o $@ \
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$(LDFLAGS-c_pic.os) -Wl,-d -Wl,--whole-archive $^
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# This trick leaves errno and h_errno undefined.
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libc.so-no-z-defs = yes
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$(objpfx)libc.so: $(elfobjdir)/soinit.os \
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$(objpfx)libc_pic_lite.os \
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$(elfobjdir)/sofini.os \
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$(elfobjdir)/interp.os $(elfobjdir)/ld.so
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$(build-shlib)
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generated += libc_pic_lite.a libc_pic_lite.os libc.so libc-tsd.os
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else
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libc-link.so = $(common-objpfx)libc.so
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endif
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include ../Rules
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# Depend on libc.so so a DT_NEEDED is generated in the shared objects.
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# This ensures they will load libc.so for needed symbols if loaded by
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# a statically-linked program that hasn't already loaded it.
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# Depend on ld.so too to get proper versions of ld.so symbols.
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$(objpfx)libpthread.so: $(libc-link.so) $(common-objpfx)libc_nonshared.a \
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$(if $(filter yes,$(elf)), $(elfobjdir)/ld.so)
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# Make sure we link with the thread library.
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ifeq ($(build-shared),yes)
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$(addprefix $(objpfx), \
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$(filter-out $(tests-static) $(tests-reverse) unload, \
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$(tests) $(test-srcs))): $(objpfx)libpthread.so \
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$(objpfx)libpthread_nonshared.a
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# $(objpfx)../libc.so is used instead of $(common-objpfx)libc.so,
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# since otherwise libpthread.so comes before libc.so when linking.
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$(addprefix $(objpfx), $(tests-reverse)): \
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$(objpfx)../libc.so $(objpfx)libpthread.so \
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$(objpfx)libpthread_nonshared.a
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$(objpfx)../libc.so: $(common-objpfx)libc.so ;
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$(addprefix $(objpfx),$(librt-tests)): $(common-objpfx)rt/librt.so
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$(objpfx)unload: $(common-objpfx)dlfcn/libdl.so
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$(objpfx)unload.out: $(objpfx)libpthread.so $(objpfx)libpthread_nonshared.a
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else
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$(addprefix $(objpfx),$(tests) $(test-srcs)): $(objpfx)libpthread.a
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$(addprefix $(objpfx),$(librt-tests)): $(common-objpfx)rt/librt.a
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endif
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ifeq ($(build-bounded),yes)
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$(tests:%=$(objpfx)%-bp): $(objpfx)libpthread_b.a
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$(librt-tests:%=$(objpfx)%-bp): $(common-objpfx)rt/librt_b.a
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endif
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ifeq ($(build-static),yes)
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$(addprefix $(objpfx), $(tests-static)): $(objpfx)libpthread.a
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endif
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ifeq ($(build-shared),yes)
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vpath pt-initfini.c $(full_config_sysdirs)
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$(objpfx)pt-initfini.s: pt-initfini.c
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$(compile.c) -S $(CFLAGS-pt-initfini.s) -finhibit-size-directive \
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$(patsubst -f%,-fno-%,$(exceptions)) -o $@
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# We only have one kind of startup code files. Static binaries and
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# shared libraries are build using the PIC version.
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$(objpfx)crti.S: $(objpfx)pt-initfini.s
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sed -n -e '1,/@HEADER_ENDS/p' \
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-e '/@_.*_PROLOG_BEGINS/,/@_.*_PROLOG_ENDS/p' \
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-e '/@TRAILER_BEGINS/,$$p' $< > $@
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$(objpfx)crtn.S: $(objpfx)pt-initfini.s
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sed -n -e '1,/@HEADER_ENDS/p' \
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-e '/@_.*_EPILOG_BEGINS/,/@_.*_EPILOG_ENDS/p' \
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-e '/@TRAILER_BEGINS/,$$p' $< > $@
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$(objpfx)defs.h: $(objpfx)pt-initfini.s
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sed -n -e '/@TESTS_BEGIN/,/@TESTS_END/p' $< | \
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$(AWK) -f ../csu/defs.awk > $@
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$(objpfx)crti.o: $(objpfx)crti.S $(objpfx)defs.h
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$(compile.S) -g0 $(ASFLAGS-.os) -o $@
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$(objpfx)crtn.o: $(objpfx)crtn.S $(objpfx)defs.h
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$(compile.S) -g0 $(ASFLAGS-.os) -o $@
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ifneq ($(multidir),.)
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$(objpfx)$(multidir):
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@mkdir -p $(objpfx)$(multidir)
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$(objpfx)$(multidir)/crti.o: $(objpfx)crti.o $(objpfx)$(multidir)
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ln -f $< $@
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$(objpfx)$(multidir)/crtn.o: $(objpfx)crtn.o $(objpfx)$(multidir)
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ln -f $< $@
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endif
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generated += crti.S crtn.S defs.h pt-initfini.s libpthread_nonshared.a
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endif
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ifeq (yes,$(build-static-nss))
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otherlibs += $(nssobjdir)/libnss_files.a $(resolvobjdir)/libnss_dns.a \
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$(resolvobjdir)/libresolv.a
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endif
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ifeq (yes,$(build-shared))
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$(objpfx)tst-_res1mod2.so: $(objpfx)tst-_res1mod1.so
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$(objpfx)tst-_res1: $(objpfx)tst-_res1mod2.so $(shared-thread-library)
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$(objpfx)tst-tls1: $(objpfx)tst-tls1mod.so $(shared-thread-library)
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tests: $(objpfx)tst-tls2.out
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$(objpfx)tst-tls2.out: tst-tls2.sh $(objpfx)tst-tls1 \
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$(objpfx)tst-tls1moda.so $(objpfx)tst-tls1modb.so \
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$(objpfx)tst-tls1modc.so $(objpfx)tst-tls1modd.so \
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$(objpfx)tst-tls1mode.so $(objpfx)tst-tls1modf.so
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$(SHELL) -e tst-tls2.sh $(common-objpfx) $(elf-objpfx) \
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$(rtld-installed-name)
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generated += tst-tls2.out
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endif
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ifeq (no,$(cross-compiling))
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ifeq (yes,$(build-shared))
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tests: $(objpfx)tst-signal.out $(objpfx)tst-cancel-wrappers.out
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$(objpfx)tst-signal.out: tst-signal.sh $(objpfx)tst-signal
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$(SHELL) -e $< $(common-objpfx) > $@
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$(objpfx)tst-cancel-wrappers.out: tst-cancel-wrappers.sh
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$(SHELL) $< $(common-objpfx)/libc_pic.a \
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$(common-objpfx)/libc.a \
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$(objpfx)/libpthread_pic.a \
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$(objpfx)/libpthread.a > $@
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generated += tst-signal.out tst-cancel-wrappers.out
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endif
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endif
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