Re: [Qemu-devel] TCG register allocator

[Max Filippov]

> I have a bug, it segfaults when executing a translation blocks. when i
> disable block chaining, the bug disappears.  However, with block
> chaining, i do not know which translation block jumps to the code
> which caused the segfault. I want to reserve a register and use it to
> record the last translation block executed.  So at entry, i assign the
> translation blocks address to the register and when the segfault
> happens, I can get the last translation block executed.

You could inject a helper call at the beginning of each TB that
would record e.g. current program counter into a global variable.

-- 
Thanks.
-- Max