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Diffstat (limited to 'REORG.TODO/sysdeps/mach/hurd/Makefile')
-rw-r--r-- | REORG.TODO/sysdeps/mach/hurd/Makefile | 206 |
1 files changed, 206 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/mach/hurd/Makefile b/REORG.TODO/sysdeps/mach/hurd/Makefile new file mode 100644 index 0000000000..13bdf5c7c9 --- /dev/null +++ b/REORG.TODO/sysdeps/mach/hurd/Makefile @@ -0,0 +1,206 @@ +# Copyright (C) 1993-2017 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 +# <http://www.gnu.org/licenses/>. + +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/%.h,auth io fs process): hurd-before-compile +.PHONY: hurd-before-compile +hurd-before-compile: $(common-objpfx)mach/mach-shortcuts.h + $(MAKE) -C $(..)hurd subdir=hurd before-compile no_deps=t +endif + +# Hurd profil.c includes this file, so give a rule to make it. +ifeq ($(subdir),gmon) +$(common-objpfx)hurd/../mach/RPC_task_get_sampled_pcs.c: + $(MAKE) -C $(..)mach subdir=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) \ + $(subst -include $(common-objpfx)libc-modules.h,,$(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 + 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: $(link-rpcuserlibs) +$(common-objpfx)linkobj/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 + +# Override the generic Makeconfig values so we link against the RPC libs. +link-libc-static := -Wl,--start-group \ + $(patsubst %,$(common-objpfx)%.a,\ + libc mach/libmachuser hurd/libhurduser) \ + $(static-gnulib) -Wl,--end-group +link-libc-static-tests := -Wl,--start-group \ + $(patsubst %,$(common-objpfx)%.a,\ + libc mach/libmachuser hurd/libhurduser) \ + $(static-gnulib-tests) -Wl,--end-group + +ifeq ($(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 |