X-Git-Url: https://hackdaworld.org/gitweb/?a=blobdiff_plain;f=betty%2FMakefile;h=0af33acaa0f98a8e698c9ee1cd58dc35c8dc8854;hb=2cbc6d2f18a38237fcd1df2ef67ba315af080f03;hp=3bff9d0fac27c4153287ecf07f1da2fdb27fead9;hpb=06e719791011a2c8eb472943492b7b0b6d445c6f;p=my-code%2Farm.git

diff --git a/betty/Makefile b/betty/Makefile
index 3bff9d0..0af33ac 100644
--- a/betty/Makefile
+++ b/betty/Makefile
@@ -1,5 +1,54 @@
+# native builds
 CC = gcc
 CFLAGS = -Wall
 
-all: lpcload
+# cross build
+ARCH = arm-elf
+CROSS_CC = $(ARCH)-gcc
+CROSS_AS = $(ARCH)-as
+CROSS_LD = $(ARCH)-ld
+CROSS_OBJCOPY = $(ARCH)-objcopy
+CROSS_OPTS = -mcpu=arm7tdmi-s
+CROSS_CFLAGS = $(CROSS_OPTS) -Wall -Os
+CROSS_ASLAGS = $(CROSS_OPTS) --gstabs
+CROSS_RAM_LDFLAGS = -Tlpc2220_ram.ld -nostartfiles -nostdlib
+CROSS_ROM_LDFLAGS = -Tlpc2220_rom.ld -nostartfiles -nostdlib
+
+# build objects
+HOST_TARGET = lpcload fwdump
+CROSS_TARGET = fwbc.hex fwflash.hex betty.hex
+
+# all projects
+all: $(HOST_TARGET) $(CROSS_TARGET)
+
+# arm code
+arm: arm_clean $(CROSS_TARGET)
+
+# .o out of .c
+%.o: %.c
+	$(CROSS_CC) -c $(CROSS_CFLAGS) -o $@ $<
+
+# .o out of .s
+%.o: %.s
+	$(CROSS_AS) $(CROSS_ASLAGS) -o $@ $<
+
+# .elf out of .o
+%.elf: %.o startup.o
+	$(CROSS_LD) $(CROSS_RAM_LDFLAGS) startup.o -o $@ $<
+
+# special linker case ...
+betty.elf: betty.o startup.o
+	$(CROSS_LD) $(CROSS_ROM_LDFLAGS) startup.o -o $@ $<
+
+# .hex out of .elf
+%.hex: %.elf
+	$(CROSS_OBJCOPY) -O ihex $< $@
+
+# host clean
+clean:
+	rm -f lpcload fwdump
+
+# arm clean
+arm_clean:
+	rm -vf *.o *.hex *.elf