mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-20 03:50:07 +00:00
0702b5f4fb
* sysdeps/mach/hurd/fcntl.c (__fcntl: case F_GETLK,F_SETLK,F_SETLKW): Support whole-file locking (only) by using the file_lock RPC. This has very wrong semantics, but is better than nothing for the time being. (Correct POSIX.1 locking will require new RPCs in the Hurd protocols that will be somewhat hairy to specify.)
175 lines
6.8 KiB
Makefile
175 lines
6.8 KiB
Makefile
# Copyright (C) 1993, 94, 95, 96, 97, 98, 99 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 Library General Public License
|
||
# as published by the Free Software Foundation; either version 2 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
|
||
# Library General Public License for more details.
|
||
|
||
# You should have received a copy of the GNU Library General Public
|
||
# License along with the GNU C Library; see the file COPYING.LIB. If not,
|
||
# write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
||
# Boston, MA 02111-1307, USA.
|
||
|
||
ifdef in-Makerules
|
||
|
||
# Look for header files in hurd/ under the top-level library source directory.
|
||
# Look for generated header files where they get created.
|
||
includes += -I$(..)hurd -I$(common-objpfx)hurd/
|
||
|
||
# We use the style `if (err = call(...))' a lot in the Hurd code,
|
||
# where we have a lot of functions that return zero or an errno code.
|
||
+cflags += -Wno-parentheses
|
||
|
||
# Do not use any assembly code from sysdeps/unix (and subdirectories).
|
||
# This bypasses all the system call stubs and uses any existing posix or
|
||
# generic C files instead.
|
||
inhibit-sysdep-asm += unix*
|
||
inhibit-unix-syscalls = yes
|
||
|
||
# Don't try to generate anything from the installed Unix system and its
|
||
# libraries. That is only of use when building for a Unix system, so as to
|
||
# be compatible with some existing binaries for that system.
|
||
inhibit-glue = yes
|
||
|
||
ifeq (,$(filter mach hurd,$(subdir)))
|
||
# Subdirectories other than hurd/ might use the generated Hurd headers.
|
||
# So make sure we get a chance to run in hurd/ to make them before all else.
|
||
# (But we don't want to do this in mach/, because hurd/ needs some things
|
||
# there, and we know mach/ doesn't need anything from hurd/.)
|
||
|
||
hurd-objpfx = $(common-objpfx)hurd/
|
||
|
||
# These are all the generated headers that <hurd.h> includes.
|
||
before-compile += $(patsubst %,$(hurd-objpfx)hurd/%.h,auth io fs process)
|
||
$(patsubst %,$(hurd-objpfx)hurd/%.%,auth io fs process):
|
||
$(MAKE) -C $(..)hurd before-compile no_deps=t
|
||
endif
|
||
|
||
# Hurd profil.c includes this file, so give a rule to make it.
|
||
ifeq ($(subdir),gmon)
|
||
$(common-objpfx)hurd/../mach/RPC_task_get_sampled_pcs.c:
|
||
$(MAKE) -C $(..)mach before-compile no_deps=t
|
||
endif
|
||
|
||
|
||
# Generate bits/errno.h from the section of the manual that lists all the errno
|
||
# codes.
|
||
|
||
errno.texinfo = $(..)manual/errno.texi
|
||
|
||
hurd = $(..)sysdeps/mach/hurd
|
||
|
||
define mach-errno-h
|
||
($(foreach h,mach/message.h \
|
||
mach/kern_return.h \
|
||
mach/mig_errors.h \
|
||
device/device_types.h,\
|
||
echo '#include <$h>';\
|
||
))
|
||
endef
|
||
|
||
# We use the compiler to generate a list of absolute file names for
|
||
# the headers we want to search for Mach error codes, listed above (and
|
||
# incidentally, all other headers those include).
|
||
-include $(common-objpfx)errnos.d
|
||
$(common-objpfx)errnos.d: $(mach-errnos-deps)
|
||
$(mach-errno-h) | \
|
||
$(CC) $(CPPFLAGS) -M -x c - | \
|
||
sed $(sed-remove-objpfx) -e 's,- *:,mach-errnos-deps :=,' \
|
||
-e 's,\.\./,$(..),g' > $@t
|
||
mv -f $@t $@
|
||
|
||
$(hurd)/bits/errno.h: $(common-objpfx)stamp-errnos ;
|
||
$(common-objpfx)stamp-errnos: $(hurd)/errnos.awk $(errno.texinfo) \
|
||
$(mach-errnos-deps) $(common-objpfx)errnos.d
|
||
$(AWK) -f $^ > $(hurd)/bits/errno.h-tmp
|
||
# Make it unwritable so noone will edit it by mistake.
|
||
-chmod a-w $(hurd)/bits/errno.h-tmp
|
||
$(move-if-change) $(hurd)/bits/errno.h-tmp $(hurd)/bits/errno.h
|
||
ifeq ($(with-cvs),yes)
|
||
test ! -d $(hurd)/CVS || \
|
||
(cd $(hurd) && cvs commit -m'Regenerated from $^' bits/errno.h)
|
||
endif
|
||
touch $@
|
||
|
||
common-generated += errnos.d stamp-errnos
|
||
|
||
# We install the real libc.a as libcrt.a and as libc.a we install a linker
|
||
# script which does -( -lcrt -lmachuser -lhurduser -).
|
||
|
||
libc-name = crt
|
||
|
||
ifeq (,$(subdir))
|
||
install-others += $(inst_libdir)/libc.a $(inst_libdir)/libc_p.a
|
||
$(inst_libdir)/libc.a: $(hurd)/libc-ldscript $(+force); $(do-install)
|
||
$(inst_libdir)/libc_p.a: $(hurd)/libc_p-ldscript $(+force); $(do-install)
|
||
endif
|
||
|
||
# Make sure these are used to build the libc.so shared object too. There
|
||
# is a circular dependency between each of these shared objects and libc
|
||
# (many high-level libc functions call stubs, stubs call low-level libc
|
||
# functions like memcpy and mach_msg). This works out fine at run time
|
||
# (all the objects are loaded before resolving their symbols, so these
|
||
# interdependencies are fine). But to create the shared objects we must
|
||
# link them one at a time; since each needs one or both of the others to
|
||
# produce its DT_NEEDED entries and to assign its undefined symbols the
|
||
# right symbol versions, we can't do any of them before the others! To
|
||
# get around this, we link each lib*user.so shared object twice. First,
|
||
# we link an object without reference to libc.so (since we haven't linked
|
||
# libc.so yet), so it lacks a DT_NEEDED record for the libc soname it
|
||
# depends on, and its undefined symbol references lack the symbol version
|
||
# assignments they should have. We will use this shared object solely to
|
||
# link libc.so against it; that gives libc.so the proper DT_NEEDED record,
|
||
# and symbol versions assignments (if the lib*user.so object is using them).
|
||
# Finally we link a second version of the same lib*user.so shared object,
|
||
# this time linked normally against libc so it gets a proper DT_NEEDED
|
||
# record and symbol version set; this one can be installed for run-time use.
|
||
rpcuserlibs := $(common-objpfx)mach/libmachuser.so \
|
||
$(common-objpfx)hurd/libhurduser.so
|
||
link-rpcuserlibs := $(rpcuserlibs:%user.so=%user-link.so)
|
||
$(common-objpfx)libc.so: $(link-rpcuserlibs)
|
||
rpath-dirs += mach hurd
|
||
|
||
$(link-rpcuserlibs): %-link.so: %_pic.a
|
||
$(build-module) -nostdlib -Wl,-soname=$(*F).so$($(*F).so-version)
|
||
|
||
# And get them into the libc.so ldscript.
|
||
$(inst_libdir)/libc.so: $(rpcuserlibs)
|
||
|
||
# The RPC stubs from these libraries are needed in building the dynamic
|
||
# linker, too. It must be self-contained, so we link the needed PIC
|
||
# objects directly into the shared object.
|
||
ifeq (elf,$(subdir))
|
||
$(objpfx)librtld.os: $(rpcuserlibs:.so=_pic.a)
|
||
|
||
CFLAGS-dl-load.c = -DEXTERNAL_MAP_FROM_FD
|
||
endif
|
||
|
||
# We need these libs to link static programs in the libc source tree, too.
|
||
ifeq (yes,$(build-static))
|
||
link-libc-static := -Wl,-\( \
|
||
$(patsubst %,$(common-objpfx)%.a,\
|
||
libc mach/libmachuser hurd/libhurduser) \
|
||
$(gnulib) -Wl,-\)
|
||
else
|
||
ifeq (yes,$(build-shared))
|
||
# We can try to link the programs with lib*_pic.a...
|
||
link-libc-static := $(link-libc) -Wl,-\( \
|
||
$(patsubst %,$(common-objpfx)%_pic.a,\
|
||
libc mach/libmachuser hurd/libhurduser) \
|
||
$(gnulib) -Wl,-\)
|
||
endif
|
||
endif
|
||
|
||
ifeq (hurd, $(subdir))
|
||
sysdep_routines += cthreads
|
||
endif
|
||
|
||
endif # in-Makerules
|