[Bug target/82303] Better PIE/PIC code generation for kernel code (x86_64 & arm64)

[hjl.tools at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82303

--- Comment #12 from H.J. Lu <hjl.tools at gmail dot com> ---
(In reply to Thomas Garnier from comment #11)
> I think for this file using only -mcmodel=large makes more sense.
> 
> Given the proposed option (-fstatic-pie) is not kernel specific, the TLS is

Sounds reasonable.

> not needed. What do you think about disabling optimization like switch
> folding [1]? It seems to exist only to remove relocations that is not even
> needed in a classic -fPIE (or -fstatic-pie) scenario.
> 
> [1]
> https://github.com/gcc-mirror/gcc/blob/
> 7977b0509f07e42fbe0f06efcdead2b7e4a5135f/gcc/tree-switch-conversion.c#L828

Testcase please.