uclibc-ng/Makefile

# Makefile for uClibc
#
# Copyright (C) 2000 by Lineo, inc.
#
# This program 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.
#
# 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 Library General Public License for more
# details.
#
# You should have received a copy of the GNU Library General Public License
# along with this program; if not, write to the Free Software Foundation, Inc.,
# 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
# Derived in part from the Linux-8086 C library, the GNU C Library, and several
# other sundry sources.  Files within this library are copyright by their
# respective copyright holders.

#--------------------------------------------------------
#
#There are a number of configurable options in "Config"
#
#--------------------------------------------------------

include Rules.mak


DIRS = extra misc pwd_grp stdio string termios net signal stdlib sysdeps unistd

ifeq ($(HAS_MMU),true)
	DO_SHARED=shared
endif

all: libc.a $(DO_SHARED) done

libc.a: halfclean headers subdirs
	$(CROSS)ranlib libc.a

# Surely there is a better way to do this then dumping all 
# the objects into a tmp dir.  Please -- someone enlighten me.
shared: libc.a
	@rm -rf tmp
	@mkdir tmp
	@(cd tmp; ar -x ../libc.a)
	@(cd tmp; CC=$(CC) /bin/sh ../extra/scripts/get-needed-libgcc-objects.sh)
	$(CC) -s -nostdlib -shared -o libuClibc.so.1 -Wl,-soname,libuClibc.so.1 tmp/*.o
	@rm -rf tmp

done: libc.a $(DO_SHARED)
	@echo
	@echo Finally finished compiling...
	@echo

halfclean:
	@rm -f libc.a libuClibc.so.1 crt0.o

headers: dummy
	@rm -f include/asm include/linux include/bits
	@ln -s $(KERNEL_SOURCE)/include/asm include/asm
	@if [ ! -f include/asm/unistd.h ] ; then \
	    echo " "; \
	    echo "The path '$(KERNEL_SOURCE)/include/asm' doesn't exist."; \
	    echo "I bet you didn't set KERNEL_SOURCE, TARGET_ARCH or HAS_MMU in \`Config'"; \
	    echo "correctly.  Please edit \`Config' and fix these settings."; \
	    echo " "; \
	    /bin/false; \
	fi;
	@if [ $(HAS_MMU) != "true" ]  && [ $(TARGET_ARCH) = "i386" ] ; then \
	    echo "WARNING: I bet your x86 system really has an MMU, right?"; \
	    echo "         malloc and friends won't work unless you fix \`Config'"; \
	    echo " "; \
	    sleep 10; \
	fi;
	@ln -s $(KERNEL_SOURCE)/include/linux include/linux
	@ln -s ../sysdeps/linux/$(TARGET_ARCH)/bits include/bits

tags:
	ctags -R

clean: subdirs_clean
	@rm -rf tmp
	rm -f libc.a crt0.o libuClibc.so.1
	rm -f include/asm include/linux include/bits

subdirs: $(patsubst %, _dir_%, $(DIRS))
subdirs_clean: $(patsubst %, _dirclean_%, $(DIRS) test)

$(patsubst %, _dir_%, $(DIRS)) : dummy
	$(MAKE) -C $(patsubst _dir_%, %, $@)

$(patsubst %, _dirclean_%, $(DIRS) test) : dummy
	$(MAKE) -C $(patsubst _dirclean_%, %, $@) clean

install:
	@if [ `id -u` -ne 0 ]; then \
	    echo "Aborting install -- You must be root."; \
	    /bin/false; \
	fi;
	rm -f $(INSTALL_DIR)/include/asm
	rm -f $(INSTALL_DIR)/include/linux
	mkdir -p $(INSTALL_DIR)/include/bits
	ln -s $(KERNEL_SOURCE)/include/asm $(INSTALL_DIR)/include/asm
	ln -s $(KERNEL_SOURCE)/include/linux $(INSTALL_DIR)/include/linux
	find include/ -type f -depth -print | cpio -pdmu $(INSTALL_DIR)
	find include/bits/ -depth -print | cpio -pdmu $(INSTALL_DIR)
	rm -f $(INSTALL_DIR)/lib/libc.a
	cp libc.a $(INSTALL_DIR)/lib
	chmod 644 $(INSTALL_DIR)/lib/libc.a
	chown -R root.root $(INSTALL_DIR)/lib/libc.a
	if [ -f crt0.o ] ; then \
	    rm -f $(INSTALL_DIR)/lib/crt0.o; \
	    cp crt0.o $(INSTALL_DIR)/lib ; \
	    chmod 644 $(INSTALL_DIR)/lib/crt0.o; \
	    chown -R root.root $(INSTALL_DIR)/lib/crt0.o; \
	fi;
	chmod -R 775 `find $(INSTALL_DIR)/include -type d`
	chmod -R 644 `find $(INSTALL_DIR)/include -type f`
	chown -R root.root $(INSTALL_DIR)/include

.PHONY: dummy