glibc/login/Makefile
Florian Weimer 5361ad3910 login: Use unsigned 32-bit types for seconds-since-epoch
These fields store timestamps when the system was running.  No Linux
systems existed before 1970, so these values are unused.  Switching
to unsigned types allows continued use of the existing struct layouts
beyond the year 2038.

The intent is to give distributions more time to switch to improved
interfaces that also avoid locking/data corruption issues.

Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>
2024-04-19 14:38:17 +02:00

98 lines
3.0 KiB
Makefile

# Copyright (C) 1996-2024 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 login portion of the library.
#
subdir := login
include ../Makeconfig
headers := utmp.h bits/utmp.h lastlog.h pty.h
routines := getlogin getlogin_r setlogin getlogin_r_chk \
getutent getutent_r getutid getutline getutid_r getutline_r \
utmp_file utmpname updwtmp getpt grantpt unlockpt ptsname \
ptsname_r_chk login login_tty logout logwtmp openpty forkpty
CFLAGS-grantpt.c += -DLIBEXECDIR='"$(libexecdir)"'
others = utmpdump
ifeq (yes,$(build-pt-chown))
others += pt_chown
others-pie = pt_chown
install-others-programs = $(inst_libexecdir)/pt_chown
endif
subdir-dirs = programs
vpath %.c programs
tests := tst-utmp tst-utmpx tst-grantpt tst-ptsname tst-getlogin tst-updwtmpx \
tst-pututxline-lockfail tst-pututxline-cache tst-utmp-size tst-utmp-size-64 \
tst-utmp-unsigned tst-utmp-unsigned-64
CFLAGS-tst-utmp-size-64.c += -D_FILE_OFFSET_BITS=64 -D_TIME_BITS=64
CFLAGS-tst-utmp-unsigned-64.c += -D_FILE_OFFSET_BITS=64 -D_TIME_BITS=64
# Empty compatibility library for old binaries.
extra-libs := libutil
extra-libs-others := $(extra-libs)
ifeq ($(have-GLIBC_2.33),yes)
libutil-routines := libutil-compat
libutil-shared-only-routines := libutil-compat
# Pretend that libutil.so is a linker script, so that the symbolic
# link is not installed.
install-lib-ldscripts = libutil.so
$(inst_libdir)/libutil.so:
else # not $(have-GLIBC_2.33)
libutil-inhibit-o = $(filter-out .o,$(object-suffixes))
endif # $(have-GLIBC_2.33)
include ../Rules
CFLAGS-getpt.c += -fexceptions
CFLAGS-getlogin_r.c += $(config-cflags-wno-ignored-attributes)
# Exclude fortified routines from being built with _FORTIFY_SOURCE
routines_no_fortify += \
getlogin_r \
ptsname_r \
# routines_no_fortify
ifeq (yesyes,$(have-fpie)$(build-shared))
pt_chown-cflags += $(pie-ccflag)
endif
ifeq (yes,$(have-libcap))
libcap = -lcap
endif
CFLAGS-pt_chown.c += $(pt_chown-cflags)
LDLIBS-pt_chown = $(libcap)
ifeq (yesyes,$(have-fpie)$(build-shared))
LDFLAGS-pt_chown = -Wl,-z,now
endif
# pt_chown needs to be setuid root.
$(inst_libexecdir)/pt_chown: $(objpfx)pt_chown $(+force)
$(make-target-directory)
-$(INSTALL_PROGRAM) -m 4755 -o root $< $@
$(objpfx)tst-pututxline-lockfail: $(shared-thread-library)
$(objpfx)tst-pututxline-cache: $(shared-thread-library)