linux-kernel - Re: [PATCH 01/22] x86/paravirt: Fix callee-saved function ELF sizes

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Mon, 15 Jul 2019 06:58:36 +0200
From:   Juergen Gross <jgross@...e.com>
To:     Josh Poimboeuf <jpoimboe@...hat.com>, x86@...nel.org
Cc:     Arnd Bergmann <arnd@...db.de>, Jann Horn <jannh@...gle.com>,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Randy Dunlap <rdunlap@...radead.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        linux-kernel@...r.kernel.org, Alok Kataria <akataria@...are.com>
Subject: Re: [PATCH 01/22] x86/paravirt: Fix callee-saved function ELF sizes

On 15.07.19 02:36, Josh Poimboeuf wrote:
> The __raw_callee_save_*() functions have an ELF symbol size of zero,
> which confuses objtool and other tools.
> 
> Fixes a bunch of warnings like the following:
> 
>    arch/x86/xen/mmu_pv.o: warning: objtool: __raw_callee_save_xen_pte_val() is missing an ELF size annotation
>    arch/x86/xen/mmu_pv.o: warning: objtool: __raw_callee_save_xen_pgd_val() is missing an ELF size annotation
>    arch/x86/xen/mmu_pv.o: warning: objtool: __raw_callee_save_xen_make_pte() is missing an ELF size annotation
>    arch/x86/xen/mmu_pv.o: warning: objtool: __raw_callee_save_xen_make_pgd() is missing an ELF size annotation
> 
> Signed-off-by: Josh Poimboeuf <jpoimboe@...hat.com>

Reviewed-by: Juergen Gross <jgross@...e.com>


Juergen