On Thu, Mar 19, 2009 at 01:49:23AM +0100, Stefan Reinauer wrote:
Kevin O'Connor wrote:
On Wed, Mar 18, 2009 at 02:17:57PM -0600, Myles Watson wrote:
I think the breakage is occurring before the payload executes, but I'm not sure of that.
qemu: fatal: Trying to execute code outside RAM or ROM at 0xf10002ba
The bug is in src/arch/i386/boot/boot.c. The inline assembly in jmp_to_elf_entry uses the "g" flag to pass in parameters. However, "g" allows gcc to use stack relative addressing of parameters.
Does it? I could not find that in the GCC Inline Assembly FAQ.
Somewhere it says it can be an offsettable memory address.
Would changing the parameters to "m" solve the problem?
I don't think so. Easiest fix would be to change "g" to "ri" - put the parameter either in a register or as an immediate value.
-Kevin