treewide: fix replace nbd@openwrt.org with nbd@nbd.name
[openwrt.org/openwrt.git] / target / linux / generic / image / relocate / Makefile
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#
# Makefile for the kernel relocation stub for MIPS devices
#
# Copyright (C) 2011 Gabor Juhos <juhosg@openwrt.org>
# Copyright (C) 2015 Felix Fietkau <nbd@openwrt.org>
#
# Some parts of this file was based on the OpenWrt specific lzma-loader
# for the BCM47xx and ADM5120 based boards:
#       Copyright (C) 2004 Manuel Novoa III (mjn3@codepoet.org)
#       Copyright (C) 2005 Mineharu Takahara <mtakahar@yahoo.com>
#       Copyright (C) 2005 by Oleg I. Vdovikin <oleg@cs.msu.su>
#
# This program is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License version 2 as published
# by the Free Software Foundation.
#
 
LOADADDR        :=
LZMA_TEXT_START := 0x81000000
LOADER_DATA     :=
BOARD           :=
FLASH_OFFS      :=
FLASH_MAX       :=
PLATFORM        :=
CACHELINE_SIZE  := 32
 
CC              := $(CROSS_COMPILE)gcc
LD              := $(CROSS_COMPILE)ld
OBJCOPY         := $(CROSS_COMPILE)objcopy
OBJDUMP         := $(CROSS_COMPILE)objdump
 
BIN_FLAGS       := -O binary -R .reginfo -R .note -R .comment -R .mdebug \
                   -R .MIPS.abiflags -S
 
CFLAGS          = -D__KERNEL__ -Wall -Wstrict-prototypes -Wno-trigraphs -Os \
                  -fno-strict-aliasing -fno-common -fomit-frame-pointer -G 0 \
                  -mno-abicalls -fno-pic -ffunction-sections -pipe -mlong-calls \
                  -fno-common -ffreestanding -fhonour-copts \
                  -mabi=32 -march=mips32r2 \
                  -Wa,-32 -Wa,-march=mips32r2 -Wa,-mips32r2 -Wa,--trap \
                  -DCONFIG_CACHELINE_SIZE=$(CACHELINE_SIZE) \
                  -DKERNEL_ADDR=$(KERNEL_ADDR)
 
ASFLAGS         = $(CFLAGS) -D__ASSEMBLY__
 
LDFLAGS         = -static --gc-sections -no-warn-mismatch
LDFLAGS         += -e startup -T loader.lds -Ttext $(LZMA_TEXT_START)
 
O_FORMAT        = $(shell $(OBJDUMP) -i | head -2 | grep elf32)
 
OBJECTS         := head.o
 
all: head.o loader.bin
 
# Don't build dependencies, this may die if $(CC) isn't gcc
dep:
 
install:
 
%.o : %.c
        $(CC) $(CFLAGS) -c -o $@ $<
 
%.o : %.S
        $(CC) $(ASFLAGS) -c -o $@ $<
 
loader: $(OBJECTS)
        $(LD) $(LDFLAGS) -o $@ $(OBJECTS)
 
loader.bin: loader
        $(OBJCOPY) $(BIN_FLAGS) $< $@
 
mrproper: clean
 
clean:
        rm -f loader *.elf *.bin *.o
 
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