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- # Rules.make for uClibc
- #
- # This file contains rules which are shared between multiple Makefiles. All
- # normal configuration options live in the file named "Config". You probably
- # should not mess with this file unless you know what you are doing...
- # -Erik Andersen <andersen@lineo.com> < andersee@debian.org>
- #
- # Copyright (C) 2000, 2001 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
- #
- include $(TOPDIR)Config
- MAJOR_VERSION=0
- MINOR_VERSION=9.5
- LIBNAME=libc.a
- SHARED_FULLNAME=libuClibc-$(MAJOR_VERSION).$(MINOR_VERSION).so
- SHARED_MAJORNAME=libc.so.$(MAJOR_VERSION)
- UCLIBC_LDSO=ld-uclibc.so.$(MAJOR_VERSION)
- LIBC=$(TOPDIR)libc/libc.a
- BUILDTIME = $(shell TZ=UTC date --utc "+%Y.%m.%d-%H:%M%z")
- GCCINCDIR = $(shell $(CC) -print-search-dirs | sed -ne "s/install: \(.*\)/\1include/gp")
- # use '-Os' optimization if available, else use -O2, allow Config to override
- ifndef OPTIMIZATION
- OPTIMIZATION = $(shell if $(CC) -Os -S -o /dev/null -xc /dev/null >/dev/null 2>&1; \
- then echo "-Os"; else echo "-O2" ; fi)
- endif
- ARFLAGS=r
- CCFLAGS=$(WARNINGS) $(OPTIMIZATION) -fno-builtin -nostdinc $(CPUFLAGS) -I$(TOPDIR)include -I$(GCCINCDIR) -I. -D_LIBC
- TARGET_CCFLAGS=--uclibc-use-build-dir $(WARNINGS) $(OPTIMIZATION) $(CPUFLAGS)
- CFLAGS=$(ARCH_CFLAGS) $(CCFLAGS) $(DEFS) $(ARCH_CFLAGS2)
- TARGET_CC= $(TOPDIR)extra/gcc-uClibc/$(TARGET_ARCH)-uclibc-gcc
- TARGET_CFLAGS=$(ARCH_CFLAGS) $(TARGET_CCFLAGS) $(DEFS) $(ARCH_CFLAGS2)
- ifeq ($(strip $(DODEBUG)),true)
- CFLAGS += -g
- TARGET_CFLAGS += -g
- LDFLAGS = -nostdlib -Wl,-warn-common
- TARGET_LDFLAGS = --uclibc-use-build-dir -Wl,-warn-common
- STRIPTOOL = /bin/true -Since_we_are_debugging
- else
- CFLAGS += -DNDEBUG #-fomit-frame-pointer
- TARGET_CFLAGS += -DNDEBUG #-fomit-frame-pointer
- LDFLAGS = -s -nostdlib -Wl,-warn-common
- TARGET_LDFLAGS = --uclibc-use-build-dir -s -Wl,-warn-common
- endif
- ifeq ($(strip $(DOPIC)),true)
- CFLAGS += -fPIC -D__PIC__
- endif
- ifndef $(PREFIX)
- PREFIX = `pwd`/_install
- endif
- NATIVE_ARCH = $(shell uname -m | sed -e 's/i.86/i386/' -e 's/sparc.*/sparc/' -e 's/arm.*/arm/g' -e 's/m68k.*/m68k/' -e 's/ppc/powerpc/g')
- ifeq ($(strip $(HAVE_SHARED)),true)
- DO_SHARED=shared
- endif
- LDSO_PRESENT=$(strip $(shell cd $(TOPDIR)/ldso/d-link; ls -d $(TARGET_ARCH) 2>/dev/null))
- # NOTE: This may need to be modified for your system
- ifeq ($(NATIVE_ARCH), $(TARGET_ARCH))
- SYSTEM_LDSO=$(strip $(shell ldd `which $(CC)` | sed -ne /ld/p | sed -e s/\ =.*//g))
- else
- SYSTEM_LDSO=/lib/ld-linux.so.2
- endif
- ifeq ($(LDSO_PRESENT), $(TARGET_ARCH))
- LDSO=$(TOPDIR)lib/$(UCLIBC_LDSO)
- DYNAMIC_LINKER=$(ROOT_DIR)/lib/$(UCLIBC_LDSO)
- else
- LDSO=$(SYSTEM_LDSO)
- DYNAMIC_LINKER=$(SYSTEM_LDSO)
- endif
- # Disable libm if HAS_FLOATING_POINT isn't true.
- ifneq ($(HAS_FLOATING_POINT),true)
- HAS_LIBM_FLOAT = false
- HAS_LIBM_DOUBLE = false
- HAS_LIBM_LONG_DOUBLE = false
- endif
- # It turns out the currently, function-sections causes ldelf2flt to segfault.
- # So till further notice, this is disabled by default....
- #
- # Use '-ffunction-sections -fdata-sections' and '--gc-sections' if they work
- # to try and strip out any unused junk automagically....
- #
- #ifeq ($(shell $(CC) -ffunction-sections -fdata-sections -S \
- # -o /dev/null -xc /dev/null && $(LD) --gc-sections -v >/dev/null && echo 1),1)
- # CFLAGS += -ffunction-sections -fdata-sections
- # LDFLAGS += --gc-sections
- #endif
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