| 1 | # |
| 2 | # Makefile for Broadcom BCM947XX boards |
| 3 | # |
| 4 | # Copyright 2001-2003, Broadcom Corporation |
| 5 | # All Rights Reserved. |
| 6 | # |
| 7 | # THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY |
| 8 | # KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM |
| 9 | # SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS |
| 10 | # FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE. |
| 11 | # |
| 12 | # Copyright 2004 Manuel Novoa III <mjn3@codepoet.org> |
| 13 | # Modified to support bzip'd kernels. |
| 14 | # Of course, it would be better to integrate bunzip capability into CFE. |
| 15 | # |
| 16 | # Copyright 2005 Oleg I. Vdovikin <oleg@cs.msu.su> |
| 17 | # Cleaned up, modified for lzma support, removed from kernel |
| 18 | # |
| 19 | # Copyright 2007 Gabor Juhos <juhosg at openwrt.org> |
| 20 | # Modified to support user defined entry point address. |
| 21 | # Added support for make targets with different names |
| 22 | # |
| 23 | |
| 24 | LOADADDR := 0x80001000 |
| 25 | LZMA_TEXT_START := 0x80500000 |
| 26 | LZMA_STARTUP_ORG:= 0 |
| 27 | LOADER_DATA := |
| 28 | CONFIG_PASS_KARGS := |
| 29 | CONFIG_BOARD := |
| 30 | |
| 31 | CC := $(CROSS_COMPILE)gcc |
| 32 | LD := $(CROSS_COMPILE)ld |
| 33 | OBJCOPY := $(CROSS_COMPILE)objcopy |
| 34 | OBJDUMP := $(CROSS_COMPILE)objdump |
| 35 | |
| 36 | BIN_FLAGS := -O binary -R .reginfo -R .note -R .comment -R .mdebug -S |
| 37 | |
| 38 | CFLAGS = -D__KERNEL__ -Wall -Wstrict-prototypes -Wno-trigraphs -Os \ |
| 39 | -fno-strict-aliasing -fno-common -fomit-frame-pointer -G 0 -mno-abicalls -fno-pic \ |
| 40 | -ffunction-sections -pipe -mlong-calls -fno-common -ffreestanding \ |
| 41 | -fhonour-copts \ |
| 42 | -mabi=32 -march=mips32 -Wa,-32 -Wa,-march=mips32 -Wa,-mips32 -Wa,--trap |
| 43 | CFLAGS += -DLOADADDR=$(LOADADDR) -D_LZMA_PROB32 |
| 44 | |
| 45 | ASFLAGS = $(CFLAGS) -D__ASSEMBLY__ -DLZMA_STARTUP_ORG=$(LZMA_STARTUP_ORG) |
| 46 | |
| 47 | LDFLAGS = -static --gc-sections -no-warn-mismatch |
| 48 | LDFLAGS += -e startup -T loader.lds -Ttext $(LZMA_TEXT_START) |
| 49 | |
| 50 | O_FORMAT = $(shell $(OBJDUMP) -i | head -2 | grep elf32) |
| 51 | |
| 52 | OBJECTS := head.o decompress.o board.o printf.o LzmaDecode.o |
| 53 | |
| 54 | ifneq ($(strip $(LOADER_DATA)),) |
| 55 | OBJECTS += data.o |
| 56 | CFLAGS += -DLZMA_WRAPPER=1 |
| 57 | else |
| 58 | CFLAGS += -D_LZMA_IN_CB |
| 59 | endif |
| 60 | |
| 61 | ifneq ($(strip $(CONFIG_PASS_KARGS)),) |
| 62 | CFLAGS += -DCONFIG_PASS_KARGS |
| 63 | endif |
| 64 | |
| 65 | BOARD_DEF := $(strip $(CONFIG_BOARD)) |
| 66 | BOARD_DEF := $(shell echo $(BOARD_DEF) | tr a-z A-Z | tr -d -) |
| 67 | ifneq ($(BOARD_DEF),) |
| 68 | CFLAGS += -DCONFIG_BOARD_$(BOARD_DEF) |
| 69 | endif |
| 70 | |
| 71 | all: loader.bin |
| 72 | |
| 73 | # Don't build dependencies, this may die if $(CC) isn't gcc |
| 74 | dep: |
| 75 | |
| 76 | install: |
| 77 | |
| 78 | %.o : %.c |
| 79 | $(CC) $(CFLAGS) -c -o $@ $< |
| 80 | |
| 81 | %.o : %.S |
| 82 | $(CC) $(ASFLAGS) -c -o $@ $< |
| 83 | |
| 84 | data.o: $(LOADER_DATA) |
| 85 | $(LD) -r -b binary --oformat $(O_FORMAT) -T lzma-data.lds -o $@ $< |
| 86 | |
| 87 | loader.bin: loader.elf |
| 88 | $(OBJCOPY) $(BIN_FLAGS) $< $@ |
| 89 | |
| 90 | loader.elf: $(OBJECTS) |
| 91 | $(LD) $(LDFLAGS) -o $@ $(OBJECTS) |
| 92 | |
| 93 | mrproper: clean |
| 94 | |
| 95 | clean: |
| 96 | rm -f *.elf *.bin *.o |
| 97 | |
| 98 | |
| 99 | |
| 100 | |
