| # |
| # (C) Copyright 2000 |
| # Wolfgang Denk, DENX Software Engineering, wd@denx.de. |
| # |
| # See file CREDITS for list of people who contributed to this |
| # project. |
| # |
| # 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 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 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 |
| # |
| |
| ######################################################################### |
| |
| # clean the slate ... |
| PLATFORM_RELFLAGS = |
| PLATFORM_CPPFLAGS = |
| PLATFORM_LDFLAGS = |
| |
| # |
| # When cross-compiling on NetBSD, we have to define __PPC__ or else we |
| # will pick up a va_list declaration that is incompatible with the |
| # actual argument lists emitted by the compiler. |
| # |
| # [Tested on NetBSD/i386 1.5 + cross-powerpc-netbsd-1.3] |
| |
| ifeq ($(ARCH),ppc) |
| ifeq ($(CROSS_COMPILE),powerpc-netbsd-) |
| PLATFORM_CPPFLAGS+= -D__PPC__ |
| endif |
| ifeq ($(CROSS_COMPILE),powerpc-openbsd-) |
| PLATFORM_CPPFLAGS+= -D__PPC__ |
| endif |
| endif |
| |
| ifeq ($(ARCH),arm) |
| ifeq ($(CROSS_COMPILE),powerpc-netbsd-) |
| PLATFORM_CPPFLAGS+= -D__ARM__ |
| endif |
| ifeq ($(CROSS_COMPILE),powerpc-openbsd-) |
| PLATFORM_CPPFLAGS+= -D__ARM__ |
| endif |
| endif |
| |
| ifdef ARCH |
| sinclude $(TOPDIR)/$(ARCH)_config.mk # include architecture dependend rules |
| endif |
| ifdef CPU |
| sinclude $(TOPDIR)/cpu/$(CPU)/config.mk # include CPU specific rules |
| endif |
| ifdef VENDOR |
| BOARDDIR = $(VENDOR)/$(BOARD) |
| else |
| BOARDDIR = $(BOARD) |
| endif |
| ifdef BOARD |
| sinclude $(TOPDIR)/board/$(BOARDDIR)/config.mk # include board specific rules |
| endif |
| |
| ######################################################################### |
| |
| CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \ |
| else if [ -x /bin/bash ]; then echo /bin/bash; \ |
| else echo sh; fi ; fi) |
| |
| ifeq ($(HOSTOS)-$(HOSTARCH),darwin-ppc) |
| HOSTCC = cc |
| else |
| HOSTCC = gcc |
| endif |
| HOSTCFLAGS = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer |
| HOSTSTRIP = strip |
| |
| ######################################################################### |
| |
| # |
| # Include the make variables (CC, etc...) |
| # |
| AS = $(CROSS_COMPILE)as |
| LD = $(CROSS_COMPILE)ld |
| CC = $(CROSS_COMPILE)gcc |
| CPP = $(CC) -E |
| AR = $(CROSS_COMPILE)ar |
| NM = $(CROSS_COMPILE)nm |
| STRIP = $(CROSS_COMPILE)strip |
| OBJCOPY = $(CROSS_COMPILE)objcopy |
| OBJDUMP = $(CROSS_COMPILE)objdump |
| RANLIB = $(CROSS_COMPILE)RANLIB |
| |
| RELFLAGS= $(PLATFORM_RELFLAGS) |
| DBGFLAGS= -g #-DDEBUG |
| OPTFLAGS= -Os #-fomit-frame-pointer |
| ifndef LDSCRIPT |
| #LDSCRIPT := board/$(BOARDDIR)/u-boot.lds.debug |
| LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot.lds |
| endif |
| OBJCFLAGS += --gap-fill=0xff |
| |
| gccincdir := $(shell $(CC) -print-file-name=include) |
| |
| CPPFLAGS := $(DBGFLAGS) $(OPTFLAGS) $(RELFLAGS) \ |
| -D__KERNEL__ -DTEXT_BASE=$(TEXT_BASE) \ |
| -I$(TOPDIR)/include \ |
| -fno-builtin -nostdinc -isystem $(gccincdir) \ |
| -pipe $(PLATFORM_CPPFLAGS) |
| |
| ifdef BUILD_TAG |
| CFLAGS := $(CPPFLAGS) -Wall -Wstrict-prototypes \ |
| -DBUILD_TAG='"$(BUILD_TAG)"' |
| else |
| CFLAGS := $(CPPFLAGS) -Wall -Wstrict-prototypes |
| endif |
| |
| AFLAGS_DEBUG := -Wa,-gstabs |
| AFLAGS := $(AFLAGS_DEBUG) -D__ASSEMBLY__ $(CPPFLAGS) |
| |
| LDFLAGS += -Bstatic -T $(LDSCRIPT) -Ttext $(TEXT_BASE) $(PLATFORM_LDFLAGS) |
| |
| # Location of a usable BFD library, where we define "usable" as |
| # "built for ${HOST}, supports ${TARGET}". Sensible values are |
| # - When cross-compiling: the root of the cross-environment |
| # - Linux/ppc (native): /usr |
| # - NetBSD/ppc (native): you lose ... (must extract these from the |
| # binutils build directory, plus the native and U-Boot include |
| # files don't like each other) |
| # |
| # So far, this is used only by tools/gdb/Makefile. |
| |
| ifeq ($(HOSTOS)-$(HOSTARCH),darwin-ppc) |
| BFD_ROOT_DIR = /usr/local/tools |
| else |
| ifeq ($(HOSTARCH),$(ARCH)) |
| # native |
| BFD_ROOT_DIR = /usr |
| else |
| #BFD_ROOT_DIR = /LinuxPPC/CDK # Linux/i386 |
| #BFD_ROOT_DIR = /usr/pkg/cross # NetBSD/i386 |
| BFD_ROOT_DIR = /opt/powerpc |
| endif |
| endif |
| |
| ######################################################################### |
| |
| export CONFIG_SHELL HPATH HOSTCC HOSTCFLAGS CROSS_COMPILE \ |
| AS LD CC CPP AR NM STRIP OBJCOPY OBJDUMP \ |
| MAKE |
| export TEXT_BASE PLATFORM_CPPFLAGS PLATFORM_RELFLAGS CPPFLAGS CFLAGS AFLAGS |
| |
| ######################################################################### |
| |
| %.s: %.S |
| $(CPP) $(AFLAGS) -o $@ $(CURDIR)/$< |
| %.o: %.S |
| $(CC) $(AFLAGS) -c -o $@ $(CURDIR)/$< |
| %.o: %.c |
| $(CC) $(CFLAGS) -c -o $@ $< |
| |
| ######################################################################### |