* The provided Makefile:
1) builds a kernel
2) copies it into rootfs/boot/kernel/kernel
3) creates an ISO CD image with the rootfs/ contents
* To boot the system in QEMU, run:
qemu-system-x86_64 -curses -drive id=boot,format=raw,file=$USER.img,if=none -drive id=data,format=raw,file=$USER-data.img,if=none -device ahci,id=ahci -device ide-drive,drive=boot,bus=ahci.0 -device ide-drive,drive=data,bus=ahci.1 -gdb tcp::9999
Explanation of parameters:
-curses use a text console (omit this to use default SDL/VNC console)
-drive ... connect a CD-ROM or hard drive with corresponding image
-device ... configure an AHCI controller for the boot and data disks
-gdb tcp::9999 listen for "remote" debugging connections on port NNNN
-S wait for GDB to connect at startup
-no-reboot prevent reboot when OS crashes
* When using the -curses mode, switch to the qemu> console with ESC-2.
* To connect a remote debugger to the running qemu VM, from a different window:
gdb ./kernel
At the (gdb) prompt, connect with:
target remote localhost:9999