1 # Makefile - Build the NanoNote payload 2 # 3 # Copyright (C) 2015 Paul Boddie <paul@boddie.org.uk> 4 # Copyright (C) Xiangfu Liu <xiangfu@sharism.cc> 5 # 6 # This program is free software; you can redistribute it and/or modify it under 7 # the terms of the GNU General Public License as published by the Free Software 8 # Foundation; either version 3 of the License, or (at your option) any later 9 # version. 10 # 11 # This program is distributed in the hope that it will be useful, but WITHOUT 12 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS 13 # FOR A PARTICULAR PURPOSE. See the GNU General Public License for more 14 # details. 15 # 16 # You should have received a copy of the GNU General Public License along with 17 # this program. If not, see <http://www.gnu.org/licenses/>. 18 19 ARCH = mipsel-linux-gnu 20 CC = $(ARCH)-gcc 21 LD = $(ARCH)-ld 22 MKIMAGE = mkimage 23 NM = $(ARCH)-nm 24 OBJCOPY=$(ARCH)-objcopy 25 OBJDUMP=$(ARCH)-objdump 26 27 # NOTE: -O2 is actually needed to prevent memcpy references, whereas probably 28 # NOTE: one of the -f{freestanding, no-hosted, no-builtin} options should work. 29 # NOTE: See: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=56888 30 31 CFLAGS = -O2 -Wall \ 32 -fno-unit-at-a-time -fno-zero-initialized-in-bss \ 33 -ffreestanding -fno-hosted -fno-builtin \ 34 -march=mips32 -fPIC \ 35 -I../include 36 LDFLAGS = -nostdlib -EL -pie 37 38 UIMAGE = uImage 39 PAYLOAD = stage2.bin 40 TARGET = $(PAYLOAD:.bin=.elf) 41 DUMP = $(PAYLOAD:.bin=.dump) 42 MAP = $(PAYLOAD:.bin=.map) 43 44 # Configure target-specific objects. 45 46 NANONOTE_SRC = board-nanonote.c nanonote_gpm940b0.c 47 NANONOTE_OBJ = board-nanonote.o nanonote_gpm940b0.o 48 MINIPC_SRC = board-minipc.c minipc_claa070vc01.c 49 MINIPC_OBJ = board-minipc.o minipc_claa070vc01.o 50 51 ifdef MINIPC 52 BOARD_SRC = $(MINIPC_SRC) 53 BOARD_OBJ = $(MINIPC_OBJ) 54 BOARD_DEFS = -DCONFIG_CPU_JZ4730_MINIPC -DCONFIG_CPU_JZ4730 55 else 56 BOARD_SRC = $(NANONOTE_SRC) 57 BOARD_OBJ = $(NANONOTE_OBJ) 58 BOARD_DEFS = 59 endif 60 61 DEFS = $(BOARD_DEFS) 62 63 # Ordering of objects is important and cannot be left to replacement rules. 64 65 SRC = head2.S stage2.c lcd.c jzlcd.c board.c $(BOARD_SRC) 66 OBJ = head2.o stage2.o lcd.o jzlcd.o board.o $(BOARD_OBJ) 67 68 .PHONY: all clean distclean 69 70 all: $(PAYLOAD) $(UIMAGE) 71 72 clean: 73 rm -f $(OBJ) $(TARGET) $(PAYLOAD) $(UIMAGE) $(DUMP) *.map 74 75 distclean: clean 76 echo "Nothing else to clean." 77 78 $(UIMAGE): $(PAYLOAD) 79 $(MKIMAGE) -A mips -O u-boot -T standalone -C none -a 0x80000000 -e 0x80000000 -n NanoPayload -d $(PAYLOAD) $(UIMAGE) 80 81 $(PAYLOAD): $(TARGET) 82 $(OBJCOPY) -O binary $(@:.bin=.elf) $@+ 83 $(OBJDUMP) -D $(@:.bin=.elf) > $(@:.bin=.dump) 84 $(OBJDUMP) -h $(@:.bin=.elf) > $(@:.bin=.map) 85 $(NM) -n $(@:.bin=.elf) > System.map 86 chmod -x $@+ 87 mv -f $@+ $@ 88 89 stage2.elf: $(OBJ) 90 $(LD) $(LDFLAGS) -T $(@:.elf=.ld) $(OBJ) -o $@ 91 92 .c.o: 93 $(CC) -c $(CFLAGS) $(DEFS) $< -o $@ 94 95 .S.o: 96 $(CC) -c $(CFLAGS) $(DEFS) $< -o $@