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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@nbd.name>
- #
- # 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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