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Message-ID: <202002060438.D30727DA@keescook>
Date: Thu, 6 Feb 2020 04:39:43 -0800
From: Kees Cook <keescook@...omium.org>
To: Kristen Carlson Accardi <kristen@...ux.intel.com>
Cc: tglx@...utronix.de, mingo@...hat.com, bp@...en8.de, hpa@...or.com,
arjan@...ux.intel.com, rick.p.edgecombe@...el.com, x86@...nel.org,
linux-kernel@...r.kernel.org, kernel-hardening@...ts.openwall.com
Subject: Re: [RFC PATCH 02/11] x86: tools/relocs: Support >64K section headers
On Wed, Feb 05, 2020 at 02:39:41PM -0800, Kristen Carlson Accardi wrote:
> While it is already supported to find the total number of section
> headers if we exceed 64K sections, we need to support the
> extended symbol table to get section header indexes for symbols
> when there are > 64K sections. Parse the elf file to read
> the extended symbol table info, and then replace all direct references
> to st_shndx with calls to sym_index(), which will determine whether
> we can read the value directly or whether we need to pull it out of
> the extended table.
>
> Signed-off-by: Kristen Carlson Accardi <kristen@...ux.intel.com>
Looks good to me.
Reviewed-by: Kees Cook <keescook@...omium.org>
-Kees
--
Kees Cook
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