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# Makefile for GNU Mach.
# Copyright (C) 2006, 2007, 2008 Free Software Foundation, Inc.
# This program is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by the
# Free Software Foundation; either version 2, or (at your option) any later
# version.
#
# This program 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 General Public License
# for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
#
# Various definitions of the Automake environment.
#
# These will be augmented below.
#
SUBDIRS =
DIST_SUBDIRS =
EXTRA_DIST =
DISTCHECK_CONFIGURE_FLAGS =
noinst_LIBRARIES =
noinst_PROGRAMS =
TESTS=
info_TEXINFOS =
MOSTLYCLEANFILES =
DISTCLEANFILES =
AM_CPPFLAGS =
AM_CCASFLAGS =
AM_CFLAGS =
AM_LDFLAGS =
#
# Compilation flags
#
AM_CPPFLAGS += \
-nostdinc -imacros config.h
AM_CPPFLAGS += \
-I$(systype) \
-I. \
-I$(top_srcdir)/$(systype) \
-I$(top_srcdir)/$(systype)/include/mach/sa \
-I$(top_srcdir)/include
# Yes, this makes the eyes hurt. But perhaps someone will finally take care of
# all that scruffy Mach code... Also see <http://savannah.gnu.org/task/?5726>.
AM_CFLAGS += \
-Wall
# See <http://lists.gnu.org/archive/html/bug-hurd/2006-01/msg00148.html>.
AM_CFLAGS += \
-fno-strict-aliasing
# The smashing stack protector might be enabled by default, but might emit
# unsuitable code.
if disable_smashing_stack_protector
AM_CFLAGS += \
-fno-stack-protector
endif
#
# MIG Setup.
#
# MIGCOM.
MIGCOM = $(MIG) -n -cc cat - /dev/null
# We need this because we use $(CPP) to preprocess MIG .defs files.
CPP = @CPP@ -x c
#
# Other Tools' Configuration.
#
# Don't needlessly overwrite files that whose contents haven't changed. This
# helps for avoinding unneccessary recompilation cycles when keeping
# cross-compilation toolchains up-to-date. Thus, unconditionally use the
# `install-sh' that is supplied by GNU Automake 1.10.1, as the GNU Coreutils
# one doesn't provide this functionality yet (TODO: change that). TODO:
# `build-aux' is hardcoded.
install_sh = $(SHELL) $(abs_srcdir)/build-aux/install-sh -C
INSTALL = $(install_sh)
#
# The main kernel functionality.
#
noinst_LIBRARIES += \
libkernel.a
libkernel_a_SOURCES =
nodist_libkernel_a_SOURCES =
MOSTLYCLEANFILES += \
$(nodist_libkernel_a_SOURCES)
gnumach_o_LDADD = \
libkernel.a
gnumach_SOURCES =
gnumach_LINKFLAGS =
# Makerules: how to do some things.
include Makerules.am
# Main Makefile fragment.
include Makefrag.am
# Test suite.
include tests/Makefrag.am
# Documentation.
include doc/Makefrag.am
#
# Kernel Image
#
# We need the following junk because of the include-files-from-libc.a magic.
# TODO. Is the following kosher from a Automake point of view? (I.e. a
# program `gnumach.o' that is then later used again as an object file.)
gnumach_o_SOURCES =
# TODO. ``-u _start''. System dependent?
gnumach_o_LINK = $(LD) -u _start -r -o $@
noinst_PROGRAMS += \
gnumach.o
# This is the list of routines we decide is OK to steal from the C library.
clib_routines := memcmp memcpy memmove memset \
strchr strstr strsep strpbrk strtok \
htonl htons ntohl ntohs \
udivdi3 __udivdi3 \
__rel_iplt_start __rel_iplt_end \
_START _start etext _edata end _end # actually ld magic, not libc.
gnumach-undef: gnumach.$(OBJEXT)
$(NM) -u $< | sed 's/ *U *//' | sort -u > $@
MOSTLYCLEANFILES += gnumach-undef
gnumach-undef-bad: gnumach-undef Makefile
sed '$(foreach r,$(clib_routines),/^$r$$/d;)' $< > $@
MOSTLYCLEANFILES += gnumach-undef-bad
clib-routines.o: gnumach-undef gnumach-undef-bad
if test -s gnumach-undef-bad; \
then cat gnumach-undef-bad; exit 2; else true; fi
$(CCLD) -nostdlib -nostartfiles -r -static \
-o $@ `sed 's/^/-Wl,-u,/' < $<` -x c /dev/null -lc -lgcc
gnumach_LINK = $(LD) $(LINKFLAGS) $(gnumach_LINKFLAGS) -o $@
gnumach_LDADD = gnumach.o clib-routines.o
#
# Installation.
#
exec_bootdir = \
$(exec_prefix)/boot
exec_boot_PROGRAMS = \
gnumach
#
# Building a distribution.
#
EXTRA_DIST += \
config.status.dep.patch
EXTRA_DIST += \
DEVELOPMENT
dist-hook:
# Try to be very safe with respect to spuriously removing various directories
# in case of an error.
find $(distdir)/ -type d -name CVS | while read d; do \
rm -f "$$d"/{Entries,Repository,Root,Tag} && \
rmdir "$$d"; \
done
DISTCLEANFILES += \
Makefile.orig \
config.status.orig
#
# Legacy support.
#
install-headers: install-data
@echo '*****************************************************'
@echo '* As you can see above, I was so kind to rewrite your'
@echo '* `make $@'\'
@echo '* into'
@echo '* `make $^'\'
@echo '* which is how it is to be spelled these days.'
@echo '*'
@echo '* Please get your instructions fixed.'
@echo '*****************************************************'
@echo
@echo 'Penalty:'
sleep 20
|
