sketchy slow test with LEDs

[cortex-from-scratch] / Makefile

diff --git a/Makefile b/Makefile
index 2563e88..949e287 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -1,32 +1,88 @@
-CC=$(TOOLROOT)/arm-none-eabi-gcc
+# Copyright 2019 - Robin Krens
+#
+# TODO: Somehow integrate this assembly start.asm (start.o)
+#
+
+# Cross compilers links
+CC=arm-none-eabi-gcc
 LD=arm-none-eabi-ld
-AR=$(TOOLROOT)/arm-none-eabi-ar
 AS=arm-none-eabi-as
 MKIMG=arm-none-eabi-objcopy
 
+# Compiler flags
 LDFLAGS+= -mthumb -mcpu=cortex-m3 
-CFLAGS+= -mcpu=cortex-m3 -mthumb 
+ASFLAGS+= -mcpu=cortex-m3 -mthumb -g
+CFLAGS+= -mcpu=cortex-m3 -mthumb -g -ffreestanding 
+
+# Include directory
+INCLUDE+= -Iinclude 
+
+BIN = bin
+
+ODIR = obj
+_OBJ = ivt.o systick.o sysinfo.o term.o main.o clock.o rtc.o 
+OBJ = $(patsubst %, $(ODIR)/%,$(_OBJ))
+
+DDIR = obj/drivers
+_DRIVERS = uart.o tm1637.o led.o tsensor.o at24c.o
+DRIVERS = $(patsubst %, $(DDIR)/%,$(_DRIVERS))
+
+LDIR = obj/lib
+_LIBS = string.o stdio.o regfunc.o pool.o tinyprintf.o 
+LIBS = $(patsubst %, $(LDIR)/%,$(_LIBS))
 
+$(DDIR)/%.o: drivers/%.c
+       @mkdir -p $(@D) 
+       $(CC) -c $< $(CFLAGS) $(INCLUDE) -o $@
+
+$(ODIR)/%.o: %.c 
+       @mkdir -p $(@D)
+       $(CC) -c $< $(CFLAGS) -I./include -o $@
+
+$(LDIR)/%.o: lib/%.c 
+       @mkdir -p $(@D)
+       $(CC) -c $< $(CFLAGS) -I./include -o $@
+
+# Start up machine assembly
 as: 
-       $(AS) $(CFLAGS) -o start.o start.asm
+       $(AS) $(ASFLAGS) -o start.o start.asm
 
-all:
-       $(AS) $(CFLAGS) -o start.o start.asm
-       $(LD) -T link.ld -o start.out start.o
-       $(MKIMG) -Obinary -R .data start.out kernel.bin
+# Compile and link all
+kernel: $(OBJ) $(DRIVERS) $(LIBS) 
+       $(AS) $(ASFLAGS) -o start.o start.asm
+       $(LD) -nostartfiles -Map $(BIN)/$@.MAP -T link.ld -o $(BIN)/$@.ELF start.o $^ --print-memory-usage
+       @echo "Creating binary..."
+       @mkdir -p $(BIN)
+       $(MKIMG) -Obinary -R .data $(BIN)/$@.ELF  $(BIN)/$@.bin
 
+# Run in Qemu; note this is a patched version for stm32-f103c8
 run:
-       qemu-system-arm -monitor stdio -M lm3s6965evb -kernel kernel.bin
+       /usr/local/bin/qemu-system-arm -serial stdio  -M stm32-f103c8 -kernel $(BIN)/kernel.bin
+
+# Examine all sections
+examine-all:
+       arm-none-eabi-objdump -D $(BIN)/kernel.ELF | less
+
+# Examine just headers
+examine-header:
+       arm-none-eabi-objdump -x $(BIN)/kernel.ELF | less
+
+# Flash kernel to board
+flash:
+       stm32flash -w $(BIN)/kernel.bin -v /dev/ttyUSB0
 
-examine:
-       arm-none-eabi-objdump -S start.out
+.PHONY: clean
 
-%.o: %.c
-       $(CC) -c $(CFLAGS) $< -o $@
-       $(CC) -MM $(CFLAGS) $< > $*.d
+clean:
+       rm -rf $(ODIR)/* start.o $(BIN)/kernel.*
 
-%.o: %.s
-       $(CC) -c $(CFLAGS) $< -o $@
+# Altijd handig deze template
+#%.o: %.c
+#      $(CC) -c $(CFLAGS) $< -o $@
+#      $(CC) -MM $(CFLAGS) $< > $*.d
+#
+#%.o: %.s
+#      $(CC) -c $(CFLAGS) $< -o $@