linux-kernel - RE: X86 fpu registers in a signal handler's ucontext

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]

Message-ID: <6D83E89737156549AEA25EF9ED712C5DE481@DEFTHW99EK1MSX.ww902.siemens.net>
Date:	Thu, 2 May 2013 09:04:51 +0000
From:	"Warlich, Christof" <christof.warlich@...mens.com>
To:	richard -rw- weinberger <richard.weinberger@...il.com>
CC:	Mikael Pettersson <mikpe@...uu.se>,
	Andi Kleen <andi@...stfloor.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: X86 fpu registers in a signal handler's ucontext

richard -rw- weinberger <richard.weinberger@...il.com> writes:
> Are you telling us that Ubuntu shipped the wrong header file?

Hmm - at least I still don't know how to get the right definition
of uc_mcontext (with eglibc-2.13 on Ubuntu 11.10) ...

If I include both signal.h and asm-generic/ucontext.h, gcc reports
this error:

/usr/include/asm-generic/ucontext.h:4:8: error: redefinition of 'struct ucontext'
/usr/include/i386-linux-gnu/sys/ucontext.h:119:16: error: previous definition of 'struct ucontext'

Thus, signal.h obviously includes the wrong i386-linux-gnu/sys/ucontext.h
defining uc_mcontext to be of type mcontext_t.

So is it still me doing something wrong or or _did_ Ubuntu ship
the wrong header files?--
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/