linux-kernel - Re: [RFC 0/2] __vdso

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:	Sun, 15 Jun 2014 14:13:26 -0700
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Andy Lutomirski <luto@...capital.net>
CC:	Ian Lance Taylor <iant@...ang.org>,
	Andi Kleen <andi@...stfloor.org>,
	Rich Felker <dalias@...c.org>,
	Mikael Pettersson <mikpelinux@...il.com>,
	Russ Cox <rsc@...ang.org>,
	Linux API <linux-api@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	X86 ML <x86@...nel.org>
Subject: Re: [RFC 0/2] __vdso_findsym

Yes, but the option exists.

On June 15, 2014 1:53:17 PM PDT, Andy Lutomirski <luto@...capital.net> wrote:
>On Sun, Jun 15, 2014 at 12:56 PM, H. Peter Anvin <hpa@...or.com> wrote:
>> You can link against vdso.so if you want to; the kernel build
>provides an option to install that image.  Doesn't mean that any
>particular libc uses it.
>
>I'd be rather surprised if anyone does this, given the generally
>spotty state of vdso.so installation and that there's no such thing as
>an ELF import library.
>
>Also, the vdso's clock_gettime isn't actually compatible with
>glibc/POSIX -- the return value and errno handling don't match.
>
>--Andy

-- 
Sent from my mobile phone.  Please pardon brevity and lack of formatting.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/