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script to debug with qemu and gdb

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This commit is contained in:
Benji Dial 2020-05-25 11:08:59 -04:00
parent 3ec479833b
commit c99a319d34
2 changed files with 10 additions and 4 deletions
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8
makefile
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@ -7,11 +7,11 @@ disk: kernel boot
dd if=out/kernel.bin of=obj/shadow.img seek=1 conv=notrunc dd if=out/kernel.bin of=obj/shadow.img seek=1 conv=notrunc
mv obj/shadow.img out/disk.img mv obj/shadow.img out/disk.img
vbox-image: disk vdi-file: disk
VBoxManage convertfromraw out/disk.img out/disk.vdi --uuid a61929ed-3bf2-45ff-b98a-44f87c616dba VBoxManage convertfromraw out/disk.img out/disk.vdi --uuid a61929ed-3bf2-45ff-b98a-44f87c616dba
kdump: kernel debug: vdi-file
objdump -M intel -d obj/kernel.elf > out/kernel.dasm gdb -x qemu-debug.gdb
kgccargs = -m32 -ffreestanding -fno-asynchronous-unwind-tables kgccargs = -m32 -ffreestanding -fno-asynchronous-unwind-tables
kernel: kernel:
@ -33,4 +33,4 @@ boot:
nasm src/boot.asm -o out/boot.bin nasm src/boot.asm -o out/boot.bin
clean: clean:
rm -r obj out rm -r obj out

6
qemu-debug.gdb Normal file
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@ -0,0 +1,6 @@
target remote | qemu-system-i386 -S -gdb stdio out/disk.img
add-symbol-file obj/kernel.elf
set disassembly-flavor intel
layout reg
break *0x30000
cont