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  PHC 
Open Source and information security mailing list archives
Hash Suite for Android: free password hash cracker in your pocket
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date:	Sat, 14 Jun 2014 16:36:15 -0700
From:	"H. Peter Anvin" <>
To:	Andy Lutomirski <>,
	Rich Felker <>
CC:	Russ Cox <>, Linux API <>,
	Ian Taylor <>,
	"" <>,
	X86 ML <>
Subject: Re: [RFC 0/2] __vdso_findsym

On 06/14/2014 03:38 PM, Andy Lutomirski wrote:
> Hmm.  I hadn't thought of this as a size win, but I guess it could be
> if there are static binaries around.

That pretty much *is* the win, because this is in effect treating the
kernel vdso as a shared library.

> This patch currently generates 488 bytes on text with my toolchain.
> More than half of that is garbage needed to deal with the symbol
> version tables, and I should be able to move a decent fraction of it
> to vdso2c and therefore out of the kernel and vdso images.

Now, if we can do this without adding another page then that becomes
much more compelling IMO.  I suspect we can if you are already down to
488 bytes.


To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

Powered by blists - more mailing lists