generate kernel.sym for debug

3 months ago · 1fcf63409c
2 changed files with 4 additions and 3 deletions
--- a/5
+++ b/5
@ -20,8 +20,9 @@ all:$(KERNEL)
 kernel.elf: $(cobj) $(gasmobj) font_psf.o $(LDSCRIPT)
 	$(LD) $(LDFLAGS) -o $@ $(gasmobj) $(cobj) font_psf.o -T$(LDSCRIPT) -Map kernel.map

-$(KERNEL): kernel.elf
-	$(CROSS)objcopy -O binary $< $@
+$(KERNEL) kernel.sym &: kernel.elf
+	$(CROSS)objcopy -O binary $< $(KERNEL)
+	$(CROSS)objcopy --only-keep-debug $< kernel.sym

 font_psf.o: font.psf
 	$(LD) -r -b binary -o font_psf.o font.psf
--- a/debug.gdb
+++ b/debug.gdb
@ -1,3 +1,3 @@
-#add-symbol-file kernel.map
+add-symbol-file kernel.sym
 file kernel.elf
 target remote | qemu-system-aarch64 -machine raspi3b  -S -gdb stdio -kernel kernel.bin