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Re: [PATCH v2] x86-64: always use unsigned 32-bit relocation for 32-bit addressing
- From: "H.J. Lu" <hjl dot tools at gmail dot com>
- To: Jan Beulich <JBeulich at suse dot com>
- Cc: Binutils <binutils at sourceware dot org>
- Date: Tue, 14 Nov 2017 08:38:51 -0800
- Subject: Re: [PATCH v2] x86-64: always use unsigned 32-bit relocation for 32-bit addressing
- Authentication-results: sourceware.org; auth=none
- References: <5A0B287E020000780018ECCC@prv-mh.provo.novell.com>
On Tue, Nov 14, 2017 at 8:31 AM, Jan Beulich <JBeulich@suse.com> wrote:
> Except for %eip-relative addressing, where we don't have a suitable
> relocation type silently wrapping at the 4G boundary, consistently
> force use of R_X86_64_32 (in ELF terms) instead of its sign-extending
> counterpart. This wasn't right in case there was no base register in
> the addressing expression.
Please open a bug report with your testcase to show incorrect result.
I need to study it very carefully.
Thanks.
--
H.J.