Re: Help on TCG asserts

[Richard Henderson]

On 10/27/20 9:15 PM, Sai Pavan Boddu wrote:
> 336 static void set_jmp_reset_offset(TCGContext *s, int which)
>              337 {
>              338     size_t off = tcg_current_code_size(s);
>              339     s->tb_jmp_reset_offset[which] = off;
>              340     /* Make sure that we didn't overflow the stored offset.  
> */
>       >>> 341     assert(s->tb_jmp_reset_offset[which] == off);
>              342 }
> 
> Can anyone give some color on what to look out for. As I see, tcg seems to 
> have
> some restriction of code size it could handle, but I’m confused how to control
> that in qemu.

It does mean that the generated code block is too large, and it needs to be
split.  I'm surprised you hit this though, since it means that something else
has gone wrong beforehand.

Is there a test case you can share?


r~