From: greg@kroah.com <greg@kroah.com>
Date: Thu, 17 Jul 2003 08:49:00 +0000 (-0700)
Subject: [PATCH] added klibc makefile
X-Git-Tag: 002~18
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=fe3004330107036de22c067f7ba49d6770596072;p=systemd

[PATCH] added klibc makefile
---

diff --git a/Makefile.klibc b/Makefile.klibc
new file mode 100644
index 00000000..d196d6f5
--- /dev/null
+++ b/Makefile.klibc
@@ -0,0 +1,158 @@
+# Makefile for diethotplug
+#
+# Copyright (C) 2000,2001 Greg Kroah-Hartman <greg@kroah.com>
+#
+# 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; version 2 of the License.
+#
+# 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+#
+
+# Set the following to `true' to make a debuggable build.
+# Leave this set to `false' for production use.
+DEBUG = true
+
+
+ROOT =		udev
+VERSION =	0.1
+INSTALL_DIR =	/usr/local/bin
+RELEASE_NAME =	$(ROOT)-$(VERSION)
+
+
+# Comment out this line to build with something other 
+# than the local version of klibc
+KLIBC = true
+
+# If you are running a cross compiler, you may want to set this
+# to something more interesting, like "arm-linux-".  I you want
+# to compile vs uClibc, that can be done here as well.
+CROSS = #/usr/i386-linux-uclibc/usr/bin/i386-uclibc-
+CC = $(CROSS)gcc
+AR = $(CROSS)ar
+STRIP = $(CROSS)strip
+
+
+# code taken from uClibc to determine the current arch
+ARCH := ${shell $(CC) -dumpmachine | sed -e s'/-.*//' -e 's/i.86/i386/' -e 's/sparc.*/sparc/' \
+	-e 's/arm.*/arm/g' -e 's/m68k.*/m68k/' -e 's/ppc/powerpc/g'}
+
+# code taken from uClibc to determine the gcc include dir
+GCCINCDIR := ${shell $(CC) -print-search-dirs | sed -ne "s/install: \(.*\)/\1include/gp"}
+
+# code taken from uClibc to determine the libgcc.a filename
+GCC_LIB := $(shell $(CC) -print-libgcc-file-name )
+
+# use '-Os' optimization if available, else use -O2
+OPTIMIZATION := ${shell if $(CC) -Os -S -o /dev/null -xc /dev/null >/dev/null 2>&1; \
+		then echo "-Os"; else echo "-O2" ; fi}
+
+WARNINGS := -Wall -Wshadow -Wstrict-prototypes 
+
+# Some nice architecture specific optimizations
+ifeq ($(strip $(TARGET_ARCH)),arm)
+	OPTIMIZATION+=-fstrict-aliasing
+endif
+ifeq ($(strip $(TARGET_ARCH)),i386)
+	OPTIMIZATION+=-march=i386
+	OPTIMIZATION += ${shell if $(CC) -mpreferred-stack-boundary=2 -S -o /dev/null -xc \
+		/dev/null >/dev/null 2>&1; then echo "-mpreferred-stack-boundary=2"; fi}
+	OPTIMIZATION += ${shell if $(CC) -malign-functions=0 -malign-jumps=0 -S -o /dev/null -xc \
+		/dev/null >/dev/null 2>&1; then echo "-malign-functions=0 -malign-jumps=0"; fi}
+	CFLAGS+=-pipe
+else
+	CFLAGS+=-pipe
+endif
+
+# if DEBUG is enabled, then we do not strip or optimize
+ifeq ($(strip $(DEBUG)),true)
+	CFLAGS  += $(WARNINGS) -O1 -g -DDEBUG -D_GNU_SOURCE
+	LDFLAGS += -Wl,-warn-common
+	STRIPCMD = /bin/true -Since_we_are_debugging
+else
+	CFLAGS  += $(WARNINGS) $(OPTIMIZATION) -fomit-frame-pointer -D_GNU_SOURCE
+	LDFLAGS += -s -Wl,-warn-common
+	STRIPCMD = $(STRIP) -s --remove-section=.note --remove-section=.comment
+endif
+
+# If we are using our version of klibc, then we need to build and link it.
+# Otherwise, use glibc and link statically.
+ifeq ($(strip $(KLIBC)),true)
+	KLIBC_DIR	= /home/greg/src/klibc/klibc/klibc
+	INCLUDE_DIR	:= $(KLIBC_DIR)/include
+	# arch specific objects
+	LIBGCC		= $(shell $(CC) --print-libgcc)
+	ARCH_LIB_OBJS =	\
+			$(KLIBC_DIR)/libc.a	\
+#			$(KLIBC_DIR)/crt0.o	\
+#			$(LIBGCC)
+#			$(KLIBC_DIR)/bin-$(ARCH)/start.o	\
+#			$(KLIBC_DIR)/bin-$(ARCH)/klibc.a
+
+#	LIB_OBJS =	$(GCC_LIB)
+
+	LIBC =	$(ARCH_LIB_OBJS) $(LIB_OBJS)
+	CFLAGS += -nostdinc -I$(INCLUDE_DIR) -I$(INCLUDE_DIR)/bits32 -I/home/greg/linux/linux-2.5/include -I$(GCCINCDIR)
+	LDFLAGS =
+#	LDFLAGS = --static --nostdlib -nostartfiles
+else
+	LIBC = 
+	CFLAGS += -I$(GCCINCDIR)
+	LIB_OBJS = -lc
+	LDFLAGS = --static 
+endif
+
+all: $(LIBC) $(ROOT)
+
+$(ARCH_LIB_OBJS) :
+	$(MAKE) -C klibc
+
+OBJS =	udev.o		\
+	logging.o	\
+	namedev.o
+
+
+# header files automatically generated
+GEN_HEADERS =	udev_version.h
+
+# Rules on how to create the generated header files
+udev_version.h:
+	@echo \#define UDEV_VERSION \"$(VERSION)\" > $@
+
+
+$(ROOT): $(GEN_HEADERS) $(OBJS)
+#	$(CC) $(LDFLAGS) -o $(ROOT) $(OBJS) $(LIB_OBJS) $(ARCH_LIB_OBJS)
+	$(LD) $(LDFLAGS) -o $(ROOT) $(KLIBC_DIR)/crt0.o $(OBJS) $(LIB_OBJS) $(ARCH_LIB_OBJS)
+	$(STRIPCMD) $(ROOT)
+
+clean:
+	-find . \( -not -type d \) -and \( -name '*~' -o -name '*.[oas]' \) -type f -print \
+	 | xargs rm -f 
+	-rm -f core $(ROOT) $(GEN_HEADERS)
+	$(MAKE) -C klibc clean
+
+DISTFILES = $(shell find . \( -not -name '.' \) -print | grep -v CVS | grep -v "\.tar\.gz" | grep -v "\/\." | grep -v releases | grep -v BitKeeper | grep -v SCCS )
+DISTDIR := $(RELEASE_NAME)
+srcdir = .
+release: $(DISTFILES) clean
+#	@echo $(DISTFILES)
+	@-rm -rf $(DISTDIR)
+	@mkdir $(DISTDIR)
+	@-chmod 777 $(DISTDIR)
+	@for file in $(DISTFILES); do			\
+		if test -d $$file; then			\
+		  	mkdir $(DISTDIR)/$$file;	\
+		else					\
+			cp -p $$file $(DISTDIR)/$$file;	\
+		fi;					\
+	done
+	@tar -c $(DISTDIR) | gzip -9 > $(RELEASE_NAME).tar.gz
+	@rm -rf $(DISTDIR)
+	@echo "Built $(RELEASE_NAME).tar.gz"