On Thu, Feb 10, 2022, Zhenzhong Duan wrote:
> UEFI loads EFI applications to dynamic runtime addresses, so it requires
> all applications to be compiled as PIC (position independent code).
>
> The new introduced single-step #DB tests series bring some compile time
> absolute address, fixed it with RIP relative address.
>
> Fixes: 9734b4236294 ("x86/debug: Add framework for single-step #DB tests")
> Fixes: 6bfb9572ec04 ("x86/debug: Test IN instead of RDMSR for single-step #DB emulation test")
> Fixes: bc0dd8bdc627 ("x86/debug: Add single-step #DB + STI/MOVSS blocking tests")
> Signed-off-by: Zhenzhong Duan <zhenzhong.duan@xxxxxxxxx>
> ---
Hrm. It would be nice if we could enabled -fPIC by default for tests that support
it, having to compile twice is going to be annoying...
Reviewed-and-tested-by: Sean Christopherson <seanjc@xxxxxxxxxx>
