From owner-cvs-src-old@FreeBSD.ORG  Sat Jan  8 17:12:54 2011
Return-Path: <owner-cvs-src-old@FreeBSD.ORG>
Delivered-To: cvs-src-old@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id 90E6A106570C
	for <cvs-src-old@freebsd.org>; Sat,  8 Jan 2011 17:12:54 +0000 (UTC)
	(envelope-from kib@FreeBSD.org)
Received: from repoman.freebsd.org (repoman.freebsd.org
	[IPv6:2001:4f8:fff6::29])
	by mx1.freebsd.org (Postfix) with ESMTP id 7E53E8FC12
	for <cvs-src-old@freebsd.org>; Sat,  8 Jan 2011 17:12:54 +0000 (UTC)
Received: from repoman.freebsd.org (localhost [127.0.0.1])
	by repoman.freebsd.org (8.14.4/8.14.4) with ESMTP id p08HCsPl048982
	for <cvs-src-old@freebsd.org>; Sat, 8 Jan 2011 17:12:54 GMT
	(envelope-from kib@repoman.freebsd.org)
Received: (from svn2cvs@localhost)
	by repoman.freebsd.org (8.14.4/8.14.4/Submit) id p08HCsS0048981
	for cvs-src-old@freebsd.org; Sat, 8 Jan 2011 17:12:54 GMT
	(envelope-from kib@repoman.freebsd.org)
Message-Id: <201101081712.p08HCsS0048981@repoman.freebsd.org>
X-Authentication-Warning: repoman.freebsd.org: svn2cvs set sender to
	kib@repoman.freebsd.org using -f
From: Konstantin Belousov <kib@FreeBSD.org>
Date: Sat, 8 Jan 2011 17:11:49 +0000 (UTC)
To: cvs-src-old@freebsd.org
X-FreeBSD-CVS-Branch: HEAD
Subject: cvs commit: src/libexec/rtld-elf Symbol.map map_object.c rtld.c
 rtld.h src/sys/sys link_elf.h
X-BeenThere: cvs-src-old@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: **OBSOLETE** CVS commit messages for the src tree
	<cvs-src-old.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/cvs-src-old>,
	<mailto:cvs-src-old-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/cvs-src-old>
List-Post: <mailto:cvs-src-old@freebsd.org>
List-Help: <mailto:cvs-src-old-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/cvs-src-old>,
	<mailto:cvs-src-old-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Sat, 08 Jan 2011 17:12:54 -0000

kib         2011-01-08 17:11:49 UTC

  FreeBSD src repository

  Modified files:
    libexec/rtld-elf     Symbol.map map_object.c rtld.c rtld.h 
    sys/sys              link_elf.h 
  Log:
  SVN rev 217153 on 2011-01-08 17:11:49Z by kib
  
  In rtld, read the initial stack access mode from AT_STACKPROT as set
  by kernel, and parse PT_GNU_STACK phdr from linked and loaded dsos.
  
  If the loaded dso requires executable stack, as specified by PF_X bit
  of p_flags of PT_GNU_STACK phdr, but current stack protection does not
  permit execution, the __pthread_map_stacks_exec symbol is looked up
  and called. It should be implemented in libc or threading library and
  change the protection mode of all thread stacks to be executable.
  
  Provide a private interface _rtld_get_stack_prot() to export the stack
  access mode as calculated by rtld.
  
  Reviewed by:       kan
  
  Revision  Changes    Path
  1.10      +1 -0      src/libexec/rtld-elf/Symbol.map
  1.24      +7 -0      src/libexec/rtld-elf/map_object.c
  1.164     +42 -0     src/libexec/rtld-elf/rtld.c
  1.49      +1 -0      src/libexec/rtld-elf/rtld.h
  1.32      +1 -0      src/sys/sys/link_elf.h