Re: CONFIG_HAVE_ARCH_TRACEHOOK and you

Roland McGrath
2008-09-12T22:47:12Z

> > Didn't it also write NT_PRFPREG notes of the wrong size?
>
> Yep, but gdb was "generous in what it received" and happily
> read the contents.

Ah. I've always done core sanity checks with:
1. generate core1 on old kernel
2. generate core2 on new kernel (identical userland scenario)
3. eu-readelf -nl core1 > a
4. eu-readelf -nl core2 > b
5. diff -u a b
Then you can eyeball any expected drift like SP address randomization,
and be suspicious of all other differences. (Of course, I also test
that gdb still likes it.)

Thanks,
Roland