glibc/nptl/Makefile
Adhemerval Zanella da4aea0b5e pthread: Refactor semaphore code
The internal semaphore list code is moved to a specific file,
sem_routine.c, and the internal usage is simplified to only two
functions (one to insert a new semaphore and one to remove it
from the internal list).  There is no need to expose the
internal locking, neither how the semaphore mapping is implemented.

No functional or semantic change is expected, tested on
x86_64-linux-gnu.
2021-02-08 14:10:42 -03:00

620 lines
23 KiB
Makefile

# Copyright (C) 2002-2021 Free Software Foundation, Inc.
# This file is part of the GNU C Library.
# 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/>.
#
# Sub-makefile for NPTL portion of the library.
#
subdir := nptl
include ../Makeconfig
headers := pthread.h semaphore.h bits/semaphore.h \
bits/struct_mutex.h bits/struct_rwlock.h
extra-libs := libpthread
extra-libs-others := $(extra-libs)
routines = \
alloca_cutoff \
forward \
libc-cancellation \
libc-cleanup \
libc-lowlevellock \
libc_multiple_threads \
libc_pthread_init \
old_pthread_cond_destroy \
old_pthread_cond_init \
pthread_atfork \
pthread_attr_copy \
pthread_attr_destroy \
pthread_attr_extension \
pthread_attr_getdetachstate \
pthread_attr_getinheritsched \
pthread_attr_getschedparam \
pthread_attr_getschedpolicy \
pthread_attr_getscope \
pthread_attr_getsigmask \
pthread_attr_init \
pthread_attr_setaffinity \
pthread_attr_setdetachstate \
pthread_attr_setinheritsched \
pthread_attr_setschedparam \
pthread_attr_setschedpolicy \
pthread_attr_setscope \
pthread_attr_setsigmask \
pthread_attr_setsigmask_internal \
pthread_cond_destroy \
pthread_cond_init \
pthread_condattr_destroy \
pthread_condattr_init \
pthread_equal \
pthread_getaffinity \
pthread_getattr_np \
pthread_getschedparam \
pthread_self \
pthread_setschedparam \
pthread_sigmask \
register-atfork \
shared-only-routines = forward
static-only-routines = pthread_atfork
# We need to provide certain routines for compatibility with existing
# binaries.
pthread-compat-wrappers = \
write read close accept \
connect recv recvfrom send \
sendto fsync lseek lseek64 \
msync open open64 pause \
pread pread64 pwrite pwrite64 \
tcdrain msgrcv msgsnd \
sigwait sigsuspend \
recvmsg sendmsg
libpthread-routines = nptl-init nptlfreeres vars events version pt-interp \
pthread_create pthread_exit pthread_detach \
pthread_join pthread_tryjoin pthread_timedjoin \
pthread_clockjoin pthread_join_common pthread_yield \
pthread_getconcurrency pthread_setconcurrency \
pthread_setschedprio \
pthread_attr_getguardsize pthread_attr_setguardsize \
pthread_attr_getstackaddr pthread_attr_setstackaddr \
pthread_attr_getstacksize pthread_attr_setstacksize \
pthread_attr_getstack pthread_attr_setstack \
pthread_mutex_init pthread_mutex_destroy \
pthread_mutex_lock pthread_mutex_trylock \
pthread_mutex_timedlock pthread_mutex_unlock \
pthread_mutex_cond_lock \
pthread_mutexattr_init pthread_mutexattr_destroy \
pthread_mutexattr_getpshared \
pthread_mutexattr_setpshared \
pthread_mutexattr_gettype pthread_mutexattr_settype \
pthread_rwlock_init pthread_rwlock_destroy \
pthread_rwlock_rdlock pthread_rwlock_timedrdlock \
pthread_rwlock_clockrdlock \
pthread_rwlock_wrlock pthread_rwlock_timedwrlock \
pthread_rwlock_clockwrlock \
pthread_rwlock_tryrdlock pthread_rwlock_trywrlock \
pthread_rwlock_unlock \
pthread_rwlockattr_init pthread_rwlockattr_destroy \
pthread_rwlockattr_getpshared \
pthread_rwlockattr_setpshared \
pthread_rwlockattr_getkind_np \
pthread_rwlockattr_setkind_np \
pthread_cond_wait \
pthread_cond_signal pthread_cond_broadcast \
old_pthread_cond_wait old_pthread_cond_timedwait \
old_pthread_cond_signal old_pthread_cond_broadcast \
pthread_condattr_getpshared pthread_condattr_setpshared \
pthread_condattr_getclock pthread_condattr_setclock \
pthread_spin_init pthread_spin_destroy \
pthread_spin_lock pthread_spin_trylock \
pthread_spin_unlock \
pthread_barrier_init pthread_barrier_destroy \
pthread_barrier_wait \
pthread_barrierattr_init pthread_barrierattr_destroy \
pthread_barrierattr_getpshared \
pthread_barrierattr_setpshared \
pthread_key_create pthread_key_delete \
pthread_getspecific pthread_setspecific \
pthread_kill pthread_sigqueue \
pthread_cancel pthread_testcancel \
pthread_setcancelstate pthread_setcanceltype \
pthread_once \
old_pthread_atfork \
pthread_getcpuclockid \
sem_init sem_destroy sem_routines \
sem_open sem_close sem_unlink \
sem_getvalue \
sem_wait sem_timedwait sem_clockwait sem_post \
cleanup cleanup_defer cleanup_compat \
cleanup_defer_compat unwind \
pt-longjmp pt-cleanup\
cancellation \
lowlevellock \
pt-fork pt-fcntl \
$(pthread-compat-wrappers) \
pt-raise pt-system \
flockfile ftrylockfile funlockfile \
sigaction \
herrno res pt-allocrtsig \
pthread_kill_other_threads \
pthread_setaffinity \
pthread_attr_getaffinity \
pthread_mutexattr_getrobust pthread_mutexattr_setrobust \
pthread_mutex_consistent \
cleanup_routine unwind-forcedunwind \
pthread_mutexattr_getprotocol \
pthread_mutexattr_setprotocol \
pthread_mutexattr_getprioceiling \
pthread_mutexattr_setprioceiling tpp \
pthread_mutex_getprioceiling \
pthread_mutex_setprioceiling \
pthread_setname pthread_getname \
pthread_setattr_default_np pthread_getattr_default_np \
pthread_mutex_conf \
libpthread-compat
libpthread-shared-only-routines = version pt-interp pt-allocrtsig \
unwind-forcedunwind
# Since cancellation handling is in large parts handled using exceptions
# we have to compile some files with exception handling enabled, some
# even with asynchronous unwind tables.
# nptl-init.c contains sigcancel_handler().
CFLAGS-nptl-init.c += -fexceptions -fasynchronous-unwind-tables
# The unwind code itself,
CFLAGS-unwind.c += -fexceptions
CFLAGS-unwind-forcedunwind.c += -fexceptions -fasynchronous-unwind-tables
# The following three functions must be async-cancel safe.
CFLAGS-pthread_cancel.c += -fexceptions -fasynchronous-unwind-tables
CFLAGS-pthread_setcancelstate.c += -fexceptions -fasynchronous-unwind-tables
CFLAGS-pthread_setcanceltype.c += -fexceptions -fasynchronous-unwind-tables
# These are internal functions which similar functionality as setcancelstate
# and setcanceltype.
CFLAGS-cancellation.c += -fasynchronous-unwind-tables
CFLAGS-libc-cancellation.c += -fasynchronous-unwind-tables
# Calling pthread_exit() must cause the registered cancel handlers to
# be executed. Therefore exceptions have to be thrown through this
# function.
CFLAGS-pthread_exit.c += -fexceptions
# Among others, __pthread_unwind is forwarded. This function must handle
# exceptions.
CFLAGS-forward.c += -fexceptions
# The following are cancellation points. Some of the functions can
# block and therefore temporarily enable asynchronous cancellation.
# Those must be compiled asynchronous unwind tables.
CFLAGS-pthread_testcancel.c += -fexceptions
CFLAGS-pthread_join.c += -fexceptions -fasynchronous-unwind-tables
CFLAGS-pthread_timedjoin.c += -fexceptions -fasynchronous-unwind-tables
CFLAGS-pthread_clockjoin.c += -fexceptions -fasynchronous-unwind-tables
CFLAGS-pthread_once.c += $(uses-callbacks) -fexceptions \
-fasynchronous-unwind-tables
CFLAGS-pthread_cond_wait.c += -fexceptions -fasynchronous-unwind-tables
CFLAGS-sem_wait.c += -fexceptions -fasynchronous-unwind-tables
CFLAGS-sem_timedwait.c += -fexceptions -fasynchronous-unwind-tables
CFLAGS-sem_clockwait.c = -fexceptions -fasynchronous-unwind-tables
# These are the function wrappers we have to duplicate here.
CFLAGS-fcntl.c += -fexceptions -fasynchronous-unwind-tables
CFLAGS-fcntl64.c += -fexceptions -fasynchronous-unwind-tables
CFLAGS-lockf.c += -fexceptions
CFLAGS-pread.c += -fexceptions -fasynchronous-unwind-tables
CFLAGS-pread64.c += -fexceptions -fasynchronous-unwind-tables
CFLAGS-pwrite.c += -fexceptions -fasynchronous-unwind-tables
CFLAGS-pwrite64.c += -fexceptions -fasynchronous-unwind-tables
CFLAGS-sigwait.c += -fexceptions -fasynchronous-unwind-tables
CFLAGS-msgrcv.c += -fexceptions -fasynchronous-unwind-tables
CFLAGS-msgsnd.c += -fexceptions -fasynchronous-unwind-tables
CFLAGS-tcdrain.c += -fexceptions -fasynchronous-unwind-tables
CFLAGS-open.c += -fexceptions -fasynchronous-unwind-tables
CFLAGS-open64.c += -fexceptions -fasynchronous-unwind-tables
CFLAGS-pause.c += -fexceptions -fasynchronous-unwind-tables
CFLAGS-recv.c += -fexceptions -fasynchronous-unwind-tables
CFLAGS-send.c += -fexceptions -fasynchronous-unwind-tables
CFLAGS-accept.c += -fexceptions -fasynchronous-unwind-tables
CFLAGS-sendto.c += -fexceptions -fasynchronous-unwind-tables
CFLAGS-connect.c += -fexceptions -fasynchronous-unwind-tables
CFLAGS-recvfrom.c += -fexceptions -fasynchronous-unwind-tables
CFLAGS-recvmsg.c += -fexceptions -fasynchronous-unwind-tables
CFLAGS-sendmsg.c += -fexceptions -fasynchronous-unwind-tables
CFLAGS-close.c += -fexceptions -fasynchronous-unwind-tables
CFLAGS-read.c += -fexceptions -fasynchronous-unwind-tables
CFLAGS-write.c += -fexceptions -fasynchronous-unwind-tables
CFLAGS-sigsuspend.c += -fexceptions -fasynchronous-unwind-tables
CFLAGS-msync.c += -fexceptions -fasynchronous-unwind-tables
CFLAGS-fdatasync.c += -fexceptions -fasynchronous-unwind-tables
CFLAGS-fsync.c += -fexceptions -fasynchronous-unwind-tables
CFLAGS-pt-system.c += -fexceptions
LDLIBS-tst-once5 = -lstdc++
CFLAGS-tst-thread_local1.o = -std=gnu++11
LDLIBS-tst-thread_local1 = -lstdc++
CFLAGS-tst-thread-exit-clobber.o = -std=gnu++11
LDLIBS-tst-thread-exit-clobber = -lstdc++
CFLAGS-tst-minstack-throw.o = -std=gnu++11
LDLIBS-tst-minstack-throw = -lstdc++
tests = tst-attr2 tst-attr3 tst-default-attr \
tst-mutex5a tst-mutex7a \
tst-mutexpi1 tst-mutexpi2 tst-mutexpi3 tst-mutexpi4 \
tst-mutexpi5 tst-mutexpi5a tst-mutexpi6 tst-mutexpi7 tst-mutexpi7a \
tst-mutexpi9 tst-mutexpi10 \
tst-cond22 tst-cond26 \
tst-robustpi1 tst-robustpi2 tst-robustpi3 tst-robustpi4 tst-robustpi5 \
tst-robustpi6 tst-robustpi7 tst-robustpi9 \
tst-rwlock2 tst-rwlock2a tst-rwlock2b tst-rwlock3 \
tst-rwlock6 tst-rwlock7 tst-rwlock8 \
tst-rwlock9 tst-rwlock10 tst-rwlock11 \
tst-rwlock15 tst-rwlock17 tst-rwlock18 \
tst-once5 \
tst-sem17 \
tst-tsd3 tst-tsd4 \
tst-cancel4_1 tst-cancel4_2 \
tst-cancel7 tst-cancel17 tst-cancel24 \
tst-cleanup4 \
tst-signal3 \
tst-exec4 tst-exec5 \
tst-stack2 tst-stack3 tst-stack4 \
tst-pthread-attr-affinity \
tst-dlsym1 \
tst-context1 \
tst-sched1 \
tst-initializers1 $(addprefix tst-initializers1-,\
c89 gnu89 c99 gnu99 c11 gnu11) \
tst-thread_local1 \
tst-robust-fork \
tst-thread-exit-clobber tst-minstack-cancel tst-minstack-exit \
tst-minstack-throw \
tst-rwlock-pwn \
tst-thread-affinity-pthread \
tst-thread-affinity-pthread2 \
tst-thread-affinity-sched \
tst-pthread-defaultattr-free \
tst-pthread-attr-sigmask \
tst-pthread-timedlock-lockloop
tests-container = tst-pthread-getattr
tests-internal := tst-robustpi8 tst-rwlock19 tst-rwlock20 \
tst-sem11 tst-sem12 tst-sem13 \
tst-barrier5 tst-signal7 tst-mutex8 tst-mutex8-static \
tst-mutexpi8 tst-mutexpi8-static \
tst-setgetname \
xtests = tst-setuid1 tst-setuid1-static tst-setuid2 \
tst-mutexpp1 tst-mutexpp6 tst-mutexpp10 tst-setgroups \
tst-mutexpp5 tst-mutexpp9
# This test can run into task limits because of a linux kernel bug
# and then cause the make process to fail too, see bug 24537.
xtests += tst-eintr1
test-srcs = tst-oddstacklimit
# Test expected to fail on most targets (except x86_64) due to bug
# 18435 - pthread_once hangs when init routine throws an exception.
test-xfail-tst-once5 = yes
gen-as-const-headers = unwindbuf.sym \
pthread-pi-defines.sym
gen-py-const-headers := nptl_lock_constants.pysym
pretty-printers := nptl-printers.py
tests-printers := test-mutexattr-printers test-mutex-printers \
test-condattr-printers test-cond-printers \
test-rwlockattr-printers test-rwlock-printers
# We must specify both CFLAGS and CPPFLAGS to override any
# compiler options the user might have provided that conflict
# with what we need e.g. user specifies CPPFLAGS with -O2 and
# we need -O0.
CFLAGS-test-mutexattr-printers.c := $(CFLAGS-printers-tests)
CFLAGS-test-mutex-printers.c := $(CFLAGS-printers-tests)
CFLAGS-test-condattr-printers.c := $(CFLAGS-printers-tests)
CFLAGS-test-cond-printers.c := $(CFLAGS-printers-tests)
CFLAGS-test-rwlockattr-printers.c := $(CFLAGS-printers-tests)
CFLAGS-test-rwlock-printers.c := $(CFLAGS-printers-tests)
CPPFLAGS-test-mutexattr-printers.c := $(CFLAGS-printers-tests)
CPPFLAGS-test-mutex-printers.c := $(CFLAGS-printers-tests)
CPPFLAGS-test-condattr-printers.c := $(CFLAGS-printers-tests)
CPPFLAGS-test-cond-printers.c := $(CFLAGS-printers-tests)
CPPFLAGS-test-rwlockattr-printers.c := $(CFLAGS-printers-tests)
CPPFLAGS-test-rwlock-printers.c := $(CFLAGS-printers-tests)
ifeq ($(build-shared),yes)
tests-printers-libs := $(shared-thread-library)
else
tests-printers-libs := $(static-thread-library)
endif
LDFLAGS-pthread.so = -Wl,--enable-new-dtags,-z,nodelete,-z,initfirst
tests += tst-cancelx7 tst-cancelx17 tst-cleanupx4
ifeq ($(build-shared),yes)
tests += tst-compat-forwarder tst-audit-threads
tests-internal += tst-tls3 tst-tls3-malloc tst-tls5 tst-stackguard1
ifeq ($(have-z-execstack),yes)
tests += tst-execstack
endif
endif
modules-names = tst-tls3mod \
tst-tls5mod tst-tls5moda tst-tls5modb tst-tls5modc \
tst-tls5modd tst-tls5mode tst-tls5modf tst-stack4mod \
tst-execstack-mod \
tst-compat-forwarder-mod tst-audit-threads-mod1 \
tst-audit-threads-mod2
extra-test-objs += $(addsuffix .os,$(strip $(modules-names))) \
tst-cleanup4aux.o tst-cleanupx4aux.o
test-extras += tst-cleanup4aux tst-cleanupx4aux
tst-tls3mod.so-no-z-defs = yes
tst-tls5mod.so-no-z-defs = yes
tst-tls5moda.so-no-z-defs = yes
tst-tls5modb.so-no-z-defs = yes
tst-tls5modc.so-no-z-defs = yes
tst-tls5modd.so-no-z-defs = yes
tst-tls5mode.so-no-z-defs = yes
tst-tls5modf.so-no-z-defs = yes
ifeq ($(build-shared),yes)
# Set the `multidir' variable by grabbing the variable from the compiler.
# We do it once and save the result in a generated makefile.
-include $(objpfx)multidir.mk
$(objpfx)multidir.mk: $(common-objpfx)config.make
$(make-target-directory)
dir=`$(CC) $(CFLAGS) $(CPPFLAGS) -print-multi-directory`; \
echo "multidir := $$dir" > $@T
mv -f $@T $@
crti-objs := crti.o
crtn-objs := crtn.o
ifneq (,$(patsubst .,,$(multidir)))
generated-dirs += $(firstword $(subst /, , $(multidir)))
crti-objs += $(multidir)/crti.o
crtn-objs += $(multidir)/crtn.o
$(objpfx)$(multidir):
mkdir -p $@
endif
extra-objs += $(crti-objs) $(crtn-objs)
extra-objs += pt-crti.o
endif
CFLAGS-flockfile.c += $(libio-mtsafe)
CFLAGS-ftrylockfile.c += $(libio-mtsafe)
CFLAGS-funlockfile.c += $(libio-mtsafe)
link-libc-static := $(common-objpfx)libc.a $(static-gnulib) \
$(common-objpfx)libc.a
tests-static += tst-stackguard1-static \
tst-cancel24-static \
tst-mutex8-static tst-mutexpi8-static tst-sem11-static \
tst-sem12-static tst-cond11-static
tests += tst-cancel24-static
tests-internal += tst-sem11-static tst-sem12-static tst-stackguard1-static
xtests-static += tst-setuid1-static
ifeq ($(run-built-tests),yes)
tests-special += $(objpfx)tst-stack3-mem.out $(objpfx)tst-oddstacklimit.out
ifeq ($(build-shared),yes)
tests-special += $(objpfx)tst-tls6.out
endif
endif
ifeq (,$(CXX))
# These tests require a C++ compiler and runtime.
tests-unsupported += tst-cancel24 tst-cancel24-static tst-once5 \
tst-thread-exit-clobber tst-minstack-throw
endif
# These tests require a C++ compiler and runtime with thread_local support.
ifneq ($(have-cxx-thread_local),yes)
tests-unsupported += tst-thread_local1
endif
include ../Rules
ifeq (yes,$(build-shared))
# Make sure these things are built in the `make lib' pass so they can be used
# to run programs during the `make others' pass.
lib-noranlib: $(addprefix $(objpfx),$(extra-objs))
endif
# 'pthread_self' is a simple memory or register load. Setting up the
# stack frame is more work than the actual operation. Disable the
# frame creation entirely. This will help applications which call the
# function frequently to get a thread-specific handle.
CFLAGS-pthread_self.os += -fomit-frame-pointer
# Run the cancellation and cleanup tests also for the modern, exception-based
# implementation. For this we have to pass the -fexceptions parameter.
CFLAGS-tst-cancelx7.c += -fexceptions
CFLAGS-tst-cancelx17.c += -fexceptions
CFLAGS-tst-cleanupx4.c += -fexceptions
CFLAGS-tst-cleanupx4aux.c += -fexceptions
CFLAGS-tst-initializers1.c += -W -Wall -Werror
CFLAGS-tst-initializers1-< = $(CFLAGS-tst-initializers1.c) \
$(patsubst tst-initializers1-%.c,-std=%,$<)
CFLAGS-tst-initializers1-c89.c += $(CFLAGS-tst-initializers1-<)
CFLAGS-tst-initializers1-c99.c += $(CFLAGS-tst-initializers1-<)
CFLAGS-tst-initializers1-c11.c += $(CFLAGS-tst-initializers1-<)
CFLAGS-tst-initializers1-gnu89.c += $(CFLAGS-tst-initializers1-<)
CFLAGS-tst-initializers1-gnu99.c += $(CFLAGS-tst-initializers1-<)
CFLAGS-tst-initializers1-gnu11.c += $(CFLAGS-tst-initializers1-<)
tst-cancel7-ARGS = --command "exec $(host-test-program-cmd)"
tst-cancelx7-ARGS = $(tst-cancel7-ARGS)
tst-stack3-ENV = MALLOC_TRACE=$(objpfx)tst-stack3.mtrace
$(objpfx)tst-stack3-mem.out: $(objpfx)tst-stack3.out
$(common-objpfx)malloc/mtrace $(objpfx)tst-stack3.mtrace > $@; \
$(evaluate-test)
generated += tst-stack3-mem.out tst-stack3.mtrace
$(objpfx)tst-stack4: $(libdl) $(shared-thread-library)
tst-stack4mod.sos=$(shell for i in 0 1 2 3 4 5 6 7 8 9 10 \
11 12 13 14 15 16 17 18 19; do \
for j in 0 1 2 3 4 5 6 7 8 9 10 \
11 12 13 14 15 16 17 18 19; do \
echo $(objpfx)tst-stack4mod-$$i-$$j.so; \
done; done)
$(objpfx)tst-stack4.out: $(tst-stack4mod.sos)
$(tst-stack4mod.sos): $(objpfx)tst-stack4mod.so
cp -f $< $@
clean:
rm -f $(tst-stack4mod.sos)
$(objpfx)tst-cleanup4: $(objpfx)tst-cleanup4aux.o $(shared-thread-library)
$(objpfx)tst-cleanupx4: $(objpfx)tst-cleanupx4aux.o $(shared-thread-library)
$(objpfx)tst-tls3: $(libdl) $(shared-thread-library)
LDFLAGS-tst-tls3 = -rdynamic
$(objpfx)tst-tls3.out: $(objpfx)tst-tls3mod.so
$(objpfx)tst-tls3mod.so: $(shared-thread-library)
$(objpfx)tst-tls3-malloc: $(libdl) $(shared-thread-library)
LDFLAGS-tst-tls3-malloc = -rdynamic
$(objpfx)tst-tls3-malloc.out: $(objpfx)tst-tls3mod.so
$(objpfx)tst-tls5: $(objpfx)tst-tls5mod.so $(shared-thread-library)
LDFLAGS-tst-tls5 = -Wl,--no-as-needed
LDFLAGS-tst-tls5mod.so = -Wl,-soname,tst-tls5mod.so
ifeq ($(build-shared),yes)
$(objpfx)tst-tls6.out: tst-tls6.sh $(objpfx)tst-tls5 \
$(objpfx)tst-tls5moda.so $(objpfx)tst-tls5modb.so \
$(objpfx)tst-tls5modc.so $(objpfx)tst-tls5modd.so \
$(objpfx)tst-tls5mode.so $(objpfx)tst-tls5modf.so
$(BASH) $< $(common-objpfx) '$(test-via-rtld-prefix)' \
'$(test-wrapper-env)' '$(run-program-env)'; \
$(evaluate-test)
endif
$(objpfx)tst-dlsym1: $(libdl) $(shared-thread-library)
ifeq (yes,$(build-shared))
librt = $(common-objpfx)rt/librt.so
else
librt = $(common-objpfx)rt/librt.a
endif
# `make check' sometimes triggers a rebuild of librt.so using this Makefile,
# which ignores librt's dependence on libpthread
$(common-objpfx)rt/librt.so: $(shared-thread-library)
$(objpfx)tst-cancel17: $(librt)
$(objpfx)tst-cancelx17: $(librt)
LDLIBS-tst-cancel24 = -Wl,--no-as-needed -lstdc++
LDLIBS-tst-cancel24-static = $(LDLIBS-tst-cancel24)
extra-B-pthread.so = -B$(common-objpfx)nptl/
$(objpfx)libpthread.so: $(addprefix $(objpfx),$(crti-objs) $(crtn-objs))
$(objpfx)libpthread.so: +preinit += $(addprefix $(objpfx),$(crti-objs))
$(objpfx)libpthread.so: +postinit += $(addprefix $(objpfx),$(crtn-objs))
# 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)): $(objpfx)libpthread.a
else
$(addprefix $(objpfx),$(tests) $(test-srcs)): $(objpfx)libpthread.a
endif
ifeq ($(build-shared),yes)
$(objpfx)crti.o: $(objpfx)pt-crti.o
ln -f $< $@
ifneq ($(multidir),.)
$(objpfx)$(multidir)/crti.o: $(objpfx)crti.o $(objpfx)$(multidir)/
ln -f $< $@
$(objpfx)$(multidir)/crtn.o: $(objpfx)crtn.o $(objpfx)$(multidir)/
ln -f $< $@
endif
generated += multidir.mk tst-tls6.out
# Give libpthread.so an entry point and make it directly runnable itself.
LDFLAGS-pthread.so += -e __nptl_main
# pt-interp.c exists just to get the runtime linker path into libpthread.so.
$(objpfx)pt-interp.os: $(common-objpfx)runtime-linker.h
endif
tst-exec4-ARGS = $(host-test-program-cmd)
$(objpfx)tst-execstack: $(libdl)
$(objpfx)tst-execstack.out: $(objpfx)tst-execstack-mod.so
LDFLAGS-tst-execstack = -Wl,-z,noexecstack
CFLAGS-tst-execstack-mod.c += -Wno-trampolines
tst-stackguard1-ARGS = --command "$(host-test-program-cmd) --child"
tst-stackguard1-static-ARGS = --command "$(objpfx)tst-stackguard1-static --child"
ifeq ($(run-built-tests),yes)
$(objpfx)tst-oddstacklimit.out: $(objpfx)tst-oddstacklimit $(objpfx)tst-basic1
$(test-program-prefix) $< --command '$(host-test-program-cmd)' > $@; \
$(evaluate-test)
endif
$(objpfx)tst-compat-forwarder: $(objpfx)tst-compat-forwarder-mod.so
tst-mutex10-ENV = GLIBC_TUNABLES=glibc.elision.enable=1
# Protect against a build using -Wl,-z,now.
LDFLAGS-tst-audit-threads-mod1.so = -Wl,-z,lazy
LDFLAGS-tst-audit-threads-mod2.so = -Wl,-z,lazy
LDFLAGS-tst-audit-threads = -Wl,-z,lazy
$(objpfx)tst-audit-threads: $(objpfx)tst-audit-threads-mod2.so
$(objpfx)tst-audit-threads.out: $(objpfx)tst-audit-threads-mod1.so
tst-audit-threads-ENV = LD_AUDIT=$(objpfx)tst-audit-threads-mod1.so
# The test uses dlopen indirectly and would otherwise load system
# objects.
tst-setuid1-static-ENV = \
LD_LIBRARY_PATH=$(ld-library-path):$(common-objpfx)elf:$(common-objpfx)nss
# The tests here better do not run in parallel.
ifeq ($(run-built-tests),yes)
ifneq ($(filter %tests,$(MAKECMDGOALS)),)
.NOTPARALLEL:
endif
endif