glibc/htl/Makefile
Samuel Thibault e2b9d562d1 htl: initialize first and prevent from unloading
libc does not have codepaths for reverting the load of a libpthread.

* htl/Makefile (LDFLAGS-pthread.so): Pass -z nodelete -z initfirst to
linker.
2020-06-14 15:53:04 +00:00

229 lines
7.7 KiB
Makefile

#
# Copyright (C) 1994-2020 Free Software Foundation, Inc.
#
# The GNU C Library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
# The GNU C Library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
# You should have received a copy of the GNU Lesser General Public
# License along with the GNU C Library; if not, see
# <https://www.gnu.org/licenses/>.
subdir := htl
srcdir = .
MICROKERNEL := mach
SYSDEPS := lockfile
LCLHDRS :=
libpthread-routines := pt-attr pt-attr-destroy pt-attr-getdetachstate \
pt-attr-getguardsize pt-attr-getinheritsched \
pt-attr-getschedparam pt-attr-getschedpolicy pt-attr-getscope \
pt-attr-getstack pt-attr-getstackaddr pt-attr-getstacksize \
pt-attr-init pt-attr-setdetachstate pt-attr-setguardsize \
pt-attr-setinheritsched pt-attr-setschedparam \
pt-attr-setschedpolicy pt-attr-setscope pt-attr-setstack \
pt-attr-setstackaddr pt-attr-setstacksize \
\
pt-barrier-destroy pt-barrier-init pt-barrier-wait \
pt-barrier pt-barrierattr-destroy pt-barrierattr-init \
pt-barrierattr-getpshared pt-barrierattr-setpshared \
\
pt-destroy-specific pt-init-specific \
pt-key-create pt-key-delete \
pt-getspecific pt-setspecific \
\
pt-once \
\
pt-alloc \
pt-create \
pt-getattr \
pt-equal \
pt-dealloc \
pt-detach \
pt-exit \
pt-initialize \
pt-join \
pt-self \
pt-sigmask \
pt-spin-inlines \
pt-cleanup \
pt-setcancelstate \
pt-setcanceltype \
pt-testcancel \
pt-cancel \
\
pt-mutexattr-destroy pt-mutexattr-init \
pt-mutexattr-getprioceiling pt-mutexattr-getprotocol \
pt-mutexattr-getpshared pt-mutexattr-gettype \
pt-mutexattr-setprioceiling pt-mutexattr-setprotocol \
pt-mutexattr-setpshared pt-mutexattr-settype \
pt-mutexattr-getrobust pt-mutexattr-setrobust \
\
pt-mutex-init pt-mutex-destroy pt-mutex-checklocked \
pt-mutex-lock pt-mutex-trylock pt-mutex-timedlock \
pt-mutex-unlock \
pt-mutex-transfer-np \
pt-mutex-getprioceiling pt-mutex-setprioceiling \
pt-mutex-consistent \
\
pt-rwlock-attr \
pt-rwlockattr-init pt-rwlockattr-destroy \
pt-rwlockattr-getpshared pt-rwlockattr-setpshared \
\
pt-rwlock-init pt-rwlock-destroy \
pt-rwlock-rdlock pt-rwlock-tryrdlock \
pt-rwlock-trywrlock pt-rwlock-wrlock \
pt-rwlock-timedrdlock pt-rwlock-timedwrlock \
pt-rwlock-unlock \
\
pt-cond \
pt-condattr-init pt-condattr-destroy \
pt-condattr-getclock pt-condattr-getpshared \
pt-condattr-setclock pt-condattr-setpshared \
\
pt-cond-destroy pt-cond-init \
pt-cond-brdcast \
pt-cond-signal \
pt-cond-wait \
pt-cond-timedwait \
pt-hurd-cond-wait \
pt-hurd-cond-timedwait \
\
pt-stack-alloc \
pt-thread-alloc \
pt-thread-start \
pt-thread-terminate \
pt-startup \
\
pt-getconcurrency pt-setconcurrency \
\
pt-block \
pt-timedblock \
pt-block-intr \
pt-timedblock-intr \
pt-wakeup \
pt-docancel \
pt-sysdep \
pt-setup \
pt-machdep \
pt-spin \
\
pt-sigstate-init \
pt-sigstate-destroy \
pt-sigstate \
\
old_pt-atfork \
pt-kill \
pt-getcpuclockid \
\
pt-getschedparam pt-setschedparam pt-setschedprio \
pt-yield \
\
sem-close sem-destroy sem-getvalue sem-init sem-open \
sem-post sem-timedwait sem-trywait sem-unlink \
sem-wait \
\
shm-directory \
\
cancellation \
cthreads-compat \
herrno \
$(SYSDEPS)
headers := \
pthread.h \
semaphore.h \
\
bits/pthread.h \
bits/pthread-np.h \
bits/pthreadtypes.h \
bits/pthreadtypes-arch.h \
bits/thread-shared-types.h \
bits/types/struct___pthread_mutex.h \
bits/types/struct___pthread_cond.h \
bits/types/struct___pthread_condattr.h \
bits/types/__pthread_spinlock_t.h \
bits/spin-lock-inline.h \
bits/cancelation.h \
bits/types/struct___pthread_attr.h \
bits/types/struct___pthread_barrierattr.h \
bits/types/struct___pthread_barrier.h \
bits/types/__pthread_key.h \
bits/types/struct___pthread_once.h \
bits/types/struct___pthread_mutexattr.h \
bits/types/struct___pthread_rwlock.h \
bits/types/struct___pthread_rwlockattr.h \
bits/semaphore.h
distribute :=
routines := forward libc_pthread_init alloca_cutoff register-atfork pt-atfork
shared-only-routines = forward
static-only-routines = pt-atfork
extra-libs := libpthread
extra-libs-others := $(extra-libs)
install-lib := libpthread.so
install-lib-ldscripts := libpthread_syms.a
include ../Makeconfig
CFLAGS-lockfile.c = -D_IO_MTSAFE_IO
all: # Make this the default target; it will be defined in Rules.
subdir_install: $(inst_libdir)/libpthread2.a $(inst_libdir)/libpthread_syms.a
# XXX: If $(inst_libdir)/libpthread2.a is installed and
# $(inst_libdir)/libpthread is not, we can have some issues.
.PHONY: $(inst_libdir)/libpthread.a $(inst_libdir)/libpthread_pic.a
# XXX: These rules are a hack. But it is better than messing with
# ../Makeconf at the moment. Note that the linker scripts
# $(srcdir)/libpthread.a and $(srcdir)/libpthread_pic.a get overwritten
# when building in $(srcdir) and not a seperate build directory.
$(inst_libdir)/libpthread2.a: $(inst_libdir)/libpthread.a
mv $< $@
$(INSTALL_DATA) $(srcdir)/libpthread.a $<
$(inst_libdir)/libpthread2_pic.a: $(inst_libdir)/libpthread_pic.a
mv $< $@
$(INSTALL_DATA) $(srcdir)/libpthread_pic.a $<
$(inst_libdir)/libpthread_syms.a: $(srcdir)/libpthread_syms.a $(+force)
$(do-install)
libc-link.so = $(common-objpfx)libc.so
extra-B-pthread.so = -B$(common-objpfx)htl/
LDFLAGS-pthread.so = -Wl,--enable-new-dtags,-z,nodelete,-z,initfirst
include ../Rules
# Make sure we link with the thread library.
ifeq ($(build-shared),yes)
$(addprefix $(objpfx), \
$(filter-out $(tests-static) $(xtests-static) $(tests-reverse) \
$(tests-nolibpthread), \
$(tests) $(tests-internal) $(xtests) $(test-srcs) $(tests-container))): \
$(objpfx)libpthread.so
$(objpfx)tst-unload: $(libdl)
# $(objpfx)../libc.so is used instead of $(common-objpfx)libc.so,
# since otherwise libpthread.so comes before libc.so when linking.
$(addprefix $(objpfx), $(tests-reverse)): \
$(objpfx)../libc.so $(objpfx)libpthread.so
$(objpfx)../libc.so: $(common-objpfx)libc.so ;
$(addprefix $(objpfx),$(tests-static) $(xtests-static)): $(srcdir)/libpthread_syms.a $(objpfx)libpthread.a
else
$(addprefix $(objpfx),$(tests) $(test-srcs)): $(srcdir)/libpthread_syms.a $(objpfx)libpthread.a
endif