Hi, On Tue, 10 Jan 2006, Jan Rupar wrote:
> I'm trying to use QEMU step through some MBR assembly code by using > gdb remotely, and I can't figure out where to set the breakpoint. I > know that on a native PC the MBR code gets relocated to 0x7c00, but > that didn't work when running through QEMU. I'm using the -S switch > to stop the emulator at the beginning. How would you guys do it? I'd do the following: start QEmu itself in gdb, breakpoint at raw_read(), let QEmu run until the sector_num == 0, and then set the current env's singlestep_enabled member to 1. You might have to recompile the code after adjusting it a bit (for example to get the current env, or to go into an if() clause when sector_num == 0). Hth, Dscho _______________________________________________ Qemu-devel mailing list Qemu-devel@nongnu.org http://lists.nongnu.org/mailman/listinfo/qemu-devel
