| # Copyright (C) 1993,94,95,96,97,98,99,2000,2001,2002,2003,2004,2009 |
| # 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, 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): \ |
| $(common-objpfx)mach/mach-shortcuts.h |
| $(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) $(CFLAGS) $(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.a: $(hurd)/libc-ldscript $(+force); $(do-install) |
| ifeq (yes,$(build-profile)) |
| install-others += $(inst_libdir)/libc_p.a |
| $(inst_libdir)/libc_p.a: $(hurd)/libc_p-ldscript $(+force); $(do-install) |
| endif |
| 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: $(link-rpcuserlibs) |
| rpath-dirs += mach hurd |
| |
| # Make sure the `lib' pass builds the dummy shared objects so |
| # we can link libc against them. |
| ifeq (mach,$(subdir)) |
| lib-noranlib: $(common-objpfx)mach/libmachuser-link.so |
| endif |
| ifeq (hurd,$(subdir)) |
| lib-noranlib: $(common-objpfx)hurd/libhurduser-link.so |
| endif |
| |
| $(link-rpcuserlibs): %-link.so: %_pic.a |
| # These shared objects are just for the purpose of linking libc, |
| # so they don't need abi-note.o linked into them. |
| $(build-shlib-helper) \ |
| -nostdlib -o $@ \ |
| -Wl,-soname=$(*F).so$($(*F).so-version) \ |
| $(build-shlib-objlist) |
| libmachuser-link.so-no-z-defs = yes |
| libhurduser-link.so-no-z-defs = yes |
| |
| # 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.map: $(rpcuserlibs:.so=_pic.a) |
| |
| CFLAGS-dl-load.c = -DEXTERNAL_MAP_FROM_FD |
| endif |
| |
| # We need these libs to link static programs in the libc source tree, too. |
| ifeq (yes,$(build-static)) |
| link-libc-static := -Wl,-\( \ |
| $(patsubst %,$(common-objpfx)%.a,\ |
| libc mach/libmachuser hurd/libhurduser) \ |
| $(static-gnulib) -Wl,-\) |
| else |
| ifeq (yes,$(build-shared)) |
| # We can try to link the programs with lib*_pic.a... |
| link-libc-static := $(link-libc) -Wl,-\( \ |
| $(patsubst %,$(common-objpfx)%_pic.a,\ |
| libc mach/libmachuser hurd/libhurduser) \ |
| $(static-gnulib) -Wl,-\) |
| endif |
| endif |
| |
| ifeq ($(subdir),csu) |
| |
| extra-objs += static-start.o |
| |
| # We need special startup code for statically linked binaries. |
| $(objpfx)crt0.o: $(objpfx)static-start.o $(objpfx)abi-note.o $(objpfx)init.o |
| $(link-relocatable) |
| |
| endif |
| |
| ifeq (hurd, $(subdir)) |
| sysdep_routines += cthreads |
| endif |
| |
| ifeq ($(subdir),sunrpc) |
| sysdep_headers += nfs/nfs.h |
| endif |
| |
| ifeq ($(subdir),socket) |
| sysdep_headers += net/ethernet.h net/if_arp.h net/if_ether.h net/if_ppp.h \ |
| net/route.h |
| endif |
| |
| endif # in-Makerules |