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123 lines
4.2 KiB
Makefile
123 lines
4.2 KiB
Makefile
# Copyright (C) 1993, 1994, 1995, 1996 Free Software Foundation, Inc.
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# This file is part of the GNU C Library.
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# The GNU C Library is free software; you can redistribute it and/or
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# modify it under the terms of the GNU Library General Public License
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# as published by the Free Software Foundation; either version 2 of
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# the License, or (at your option) any later version.
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# The GNU C Library is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# Library General Public License for more details.
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# You should have received a copy of the GNU Library General Public
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# License along with the GNU C Library; see the file COPYING.LIB. If
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# not, write to the Free Software Foundation, Inc., 675 Mass Ave,
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# Cambridge, MA 02139, USA.
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ifdef in-Makerules
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subdirs := $(filter-out sunrpc,$(subdirs)) # XXX skip broken dirs
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# Look for header files in hurd/ under the top-level library source directory.
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includes += -I$(..)hurd
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# Do not use any assembly code from sysdeps/unix (and subdirectories).
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# This bypasses all the system call stubs and uses any existing posix or
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# generic C files instead.
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inhibit-sysdep-asm += unix*
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inhibit-unix-syscalls = yes
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# Don't try to generate anything from the installed Unix system and its
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# libraries. That is only of use when building for a Unix system, so as to
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# be compatible with some existing binaries for that system.
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inhibit-glue = yes
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ifeq (,$(filter mach hurd,$(subdir)))
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# Subdirectories other than hurd/ might use the generated Hurd headers.
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# So make sure we get a chance to run in hurd/ to make them before all else.
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# (But we don't want to do this in mach/, because hurd/ needs some things
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# there, and we know mach/ doesn't need anything from hurd/.)
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ifdef objpfx
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hurd-objpfx = $(objpfx)
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else
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hurd-objpfx = $(..)hurd/
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endif
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# These are all the generated headers that <hurd.h> includes.
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before-compile += $(patsubst %,$(hurd-objpfx)hurd/%.h,io fs process)
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$(patsubst %,$(hurd-objpfx)hurd/%.%,io fs process):
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$(MAKE) -C $(..)hurd generated no_deps=t
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endif
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# Generate errnos.h from the section of the manual that lists all the errno
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# codes.
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errno.texinfo = $(..)manual/errno.texi
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hurd = $(..)sysdeps/mach/hurd
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define mach-errno-h
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($(foreach h,mach/message.h \
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mach/kern_return.h \
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mach/mig_errors.h \
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device/device_types.h,\
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echo '#include <$h>';\
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))
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endef
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# We use the compiler to generate a list of absolute file names for
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# the headers we want to search for Mach error codes, listed above (and
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# incidentally, all other headers those include).
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-include $(common-objpfx)errnos.d
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$(common-objpfx)errnos.d: $(mach-errnos-deps)
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$(mach-errno-h) | \
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$(CC) $(CPPFLAGS) -M -x c - | \
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sed $(sed-remove-objpfx) -e 's,- *:,mach-errnos-deps :=,' \
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-e 's,\.\./,$(..),g' > $@t
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mv -f $@t $@
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$(hurd)/errnos.h: $(common-objpfx)stamp-errnos ;
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$(common-objpfx)stamp-errnos: $(hurd)/errnos.awk $(errno.texinfo) \
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$(mach-errnos-deps)
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gawk -f $^ > $(hurd)/errnos.h-tmp
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# Make it unwritable so noone will edit it by mistake.
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-chmod a-w $(hurd)/errnos.h-tmp
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./$(..)move-if-change $(hurd)/errnos.h-tmp $(hurd)/errnos.h
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test ! -d CVS || \
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(cd $(hurd); cvs commit -m'Regenerated from $^' errnos.h)
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touch $@
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generated += errnos.d stamp-errnos
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# We install the real libc.a as libcrt.a and as libc.a we install a linker
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# script which does -( -lcrt -lmachuser -lhurduser -).
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libc-name = crt
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ifeq (,$(subdir))
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install-others += $(libdir)/libc.a
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$(libdir)/libc.a: $(hurd)/libc-ldscript; $(do-install)
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endif
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# For the shared library, we don't need to do the linker script machination.
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# Instead, we specify the required libraries when building the shared object.
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rpcuserlibs := $(firstword $(objdir) $(..)mach)/libmachuser.so \
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$(firstword $(objdir) $(..)hurd)/libhurduser.so
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$(common-objpfx)libc.so: $(rpcuserlibs)
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ifndef objpfx
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rpath-link += $(..)mach:$(..)hurd
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endif
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# The RPC stubs from these libraries are needed in building the dynamic
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# linker, too. It must be self-contained, so we link the needed PIC
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# objects directly into the shared object.
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ifeq (elf,$(subdir))
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$(objpfx)librtld.so: $(rpcuserlibs:.so=_pic.a)
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endif
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endif # in-Makerules
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