glibc/rt/Makefile
Frédéric Bérat 20c894d21e Exclude routines from fortification
Since the _FORTIFY_SOURCE feature uses some routines of Glibc, they need to
be excluded from the fortification.

On top of that:
 - some tests explicitly verify that some level of fortification works
   appropriately, we therefore shouldn't modify the level set for them.
 - some objects need to be build with optimization disabled, which
   prevents _FORTIFY_SOURCE to be used for them.

Assembler files that implement architecture specific versions of the
fortified routines were not excluded from _FORTIFY_SOURCE as there is no
C header included that would impact their behavior.

Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
2023-07-05 16:59:48 +02:00

123 lines
3.1 KiB
Makefile

# Copyright (C) 1997-2023 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 real-time portion of the library.
#
subdir := rt
include ../Makeconfig
headers := aio.h mqueue.h bits/mqueue.h bits/mqueue2.h
routines = \
shm_open \
shm_unlink \
librt-routines = librt-compat
librt-shared-only-routines = librt-compat
$(librt-routines-var) += \
aio_cancel \
aio_error \
aio_fsync \
aio_misc \
aio_notify \
aio_read \
aio_read64 \
aio_return \
aio_sigqueue \
aio_suspend \
aio_write \
aio_write64 \
lio_listio \
lio_listio64 \
mq_close \
mq_getattr \
mq_notify \
mq_open \
mq_receive \
mq_send \
mq_setattr \
mq_timedreceive \
mq_timedsend \
mq_unlink \
timer_create \
timer_delete \
timer_getoverr \
timer_gettime \
timer_settime \
ifeq ($(pthread-in-libc),yes)
# Pretend that librt.so is a linker script, so that the symbolic
# link is not installed.
install-lib-ldscripts = librt.so
$(inst_libdir)/librt.so:
endif
tests := tst-shm tst-timer tst-timer2 \
tst-aio tst-aio64 tst-aio2 tst-aio3 tst-aio4 tst-aio5 tst-aio6 \
tst-aio7 tst-aio8 tst-aio9 tst-aio10 \
tst-mqueue1 tst-mqueue2 tst-mqueue3 tst-mqueue4 \
tst-mqueue5 tst-mqueue6 tst-mqueue7 tst-mqueue8 tst-mqueue9 \
tst-bz28213 \
tst-timer3 tst-timer4 tst-timer5 \
tst-cpuclock2 tst-cputimer1 tst-cputimer2 tst-cputimer3 \
tst-shm-cancel \
tst-mqueue10
tests-internal := tst-timer-sigmask
tests-time64 := \
tst-aio6-time64 \
tst-cpuclock2-time64 \
tst-mqueue1-time64 \
tst-mqueue2-time64 \
tst-mqueue4-time64 \
tst-mqueue8-time64 \
tst-mqueue10-time64 \
tst-timer4-time64
extra-libs := librt
extra-libs-others := $(extra-libs)
include ../Rules
CFLAGS-aio_suspend.c += -fexceptions
CFLAGS-mq_timedreceive.c += -fexceptions -fasynchronous-unwind-tables
CFLAGS-mq_timedsend.c += -fexceptions -fasynchronous-unwind-tables
# Exclude fortified routines from being built with _FORTIFY_SOURCE
routines_no_fortify += \
mq_open \
# routines_no_fortify
LDFLAGS-rt.so = -Wl,--enable-new-dtags,-z,nodelete
$(objpfx)librt.so: $(shared-thread-library)
ifneq ($(pthread-in-libc),yes)
ifeq (yes,$(build-shared))
$(addprefix $(objpfx),$(tests) $(tests-internal)): \
$(objpfx)librt.so $(shared-thread-library)
else
$(addprefix $(objpfx),$(tests)) $(tests-internal): \
$(objpfx)librt.a $(static-thread-library)
endif
endif # !$(pthread-in-libc)
tst-mqueue7-ARGS = -- $(host-test-program-cmd)