1 # Rules.make for uClibc
3 # This file contains rules which are shared between multiple Makefiles. All
4 # normal configuration options live in the file named "Config". You probably
5 # should not mess with this file unless you know what you are doing...
7 # Copyright (C) 2000 by Lineo, inc.
8 # Copyright (C) 2000,2001 Erik Andersen <andersee@debian.org>
10 # This program is free software; you can redistribute it and/or modify it under
11 # the terms of the GNU Library General Public License as published by the Free
12 # Software Foundation; either version 2 of the License, or (at your option) any
15 # This program is distributed in the hope that it will be useful, but WITHOUT
16 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
17 # FOR A PARTICULAR PURPOSE. See the GNU Library General Public License for more
20 # You should have received a copy of the GNU Library General Public License
21 # along with this program; if not, write to the Free Software Foundation, Inc.,
22 # 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
25 include $(TOPDIR)Config
29 VERSION=$(MAJOR_VERSION).$(MINOR_VERSION)
32 SHARED_FULLNAME=libuClibc-$(MAJOR_VERSION).$(MINOR_VERSION).so
33 SHARED_MAJORNAME=libc.so.$(MAJOR_VERSION)
34 UCLIBC_LDSO=ld-uClibc.so.$(MAJOR_VERSION)
35 LIBC=$(TOPDIR)libc/libc.a
37 BUILDTIME = ${shell TZ=UTC date --utc "+%Y.%m.%d-%H:%M%z"}
38 GCCINCDIR = ${shell $(CC) -print-search-dirs | sed -ne "s/install: \(.*\)/\1include/gp"}
39 NATIVE_ARCH = ${shell uname -m | sed -e 's/i.86/i386/' -e 's/sparc.*/sparc/' \
40 -e 's/arm.*/arm/g' -e 's/m68k.*/m68k/' -e 's/ppc/powerpc/g'}
42 # use '-Os' optimization if available, else use -O2, allow Config to override
44 OPTIMIZATION = ${shell if $(CC) -Os -S -o /dev/null -xc /dev/null >/dev/null 2>&1; \
45 then echo "-Os"; else echo "-O2" ; fi}
50 CCFLAGS=$(WARNINGS) -fno-builtin -nostdinc $(CPUFLAGS) -I$(TOPDIR)include -I$(GCCINCDIR) -I. -D_LIBC
51 TARGET_CCFLAGS=--uclibc-use-build-dir $(WARNINGS) $(CPUFLAGS)
52 CFLAGS=$(ARCH_CFLAGS) $(CCFLAGS) $(DEFS) $(ARCH_CFLAGS2)
53 TARGET_CC= $(TOPDIR)extra/gcc-uClibc/$(TARGET_ARCH)-uclibc-gcc
54 TARGET_CFLAGS=$(ARCH_CFLAGS) $(TARGET_CCFLAGS) $(DEFS) $(ARCH_CFLAGS2)
56 ifeq ($(strip $(DODEBUG)),true)
59 LDFLAGS = -nostdlib -Wl,-warn-common
60 TARGET_LDFLAGS = --uclibc-use-build-dir -Wl,-warn-common
61 STRIPTOOL = /bin/true -Since_we_are_debugging
63 CFLAGS += $(OPTIMIZATION) -DNDEBUG #-fomit-frame-pointer
64 TARGET_CFLAGS += $(OPTIMIZATION) -DNDEBUG #-fomit-frame-pointer
65 LDFLAGS = -s -nostdlib -Wl,-warn-common
66 TARGET_LDFLAGS = --uclibc-use-build-dir -s -Wl,-warn-common
68 ifeq ($(strip $(DOPIC)),true)
70 TARGET_CFLAGS += -fPIC
73 ifeq ($(strip $(HAVE_SHARED)),true)
74 LIBRARY_CACHE=#-DUSE_CACHE
75 ifeq ($(strip $(BUILD_UCLIBC_LDSO)),true)
76 LDSO=$(TOPDIR)lib/$(UCLIBC_LDSO)
77 DYNAMIC_LINKER=$(SHARED_LIB_LOADER_PATH)/$(UCLIBC_LDSO)
78 BUILD_DYNAMIC_LINKER=$(shell cd $(TOPDIR)lib; pwd)/$(UCLIBC_LDSO)
81 DYNAMIC_LINKER=/lib/$(notdir $(SYSTEM_LDSO))
82 BUILD_DYNAMIC_LINKER=/lib/$(notdir $(SYSTEM_LDSO))
86 # TARGET_PREFIX is the directory under which which the uClibc runtime
87 # environment will be installed and used on the target system. The
88 # result will look something like the following:
90 # lib/ <contains all runtime and static libs>
91 # usr/lib/ <this directory is searched for runtime libs>
92 # etc/ <weher the shared library cache and configuration
93 # information go if you enabled LIBRARY_CACHE above>
94 # Very few people will need to change this value from the default...