• H. Peter Anvin's avatar
    Sanitize the type of struct user.u_ar0 · 6e16d89b
    H. Peter Anvin authored
    struct user.u_ar0 is defined to contain a pointer offset on all
    architectures in which it is defined (all architectures which define an
    a.out format except SPARC.) However, it has a pointer type in the headers,
    which is pointless -- <asm/user.h> is not exported to userspace, and it
    just makes the code messy.
    Redefine the field as "unsigned long" (which is the same size as a pointer
    on all Linux architectures) and change the setting code to user offsetof()
    instead of hand-coded arithmetic.
    Cc: Linux Arch Mailing List <linux-arch@vger.kernel.org>
    Cc: Bryan Wu <bryan.wu@analog.com>
    Cc: Roman Zippel <zippel@linux-m68k.org>
    Cc: Thomas Gleixner <tglx@linutronix.de>
    Cc: Ingo Molnar <mingo@redhat.com>
    Cc: Richard Henderson <rth@twiddle.net>
    Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
    Cc: Russell King <rmk@arm.linux.org.uk>
    Cc: Lennert Buytenhek <kernel@wantstofly.org>
    Cc: Håvard Skinnemoen <hskinnemoen@atmel.com>
    Cc: Mikael Starvik <starvik@axis.com>
    Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
    Cc: Tony Luck <tony.luck@intel.com>
    Cc: Hirokazu Takata <takata@linux-m32r.org>
    Cc: Ralf Baechle <ralf@linux-mips.org>
    Cc: Paul Mackerras <paulus@samba.org>
    Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
    Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
    Cc: Paul Mundt <lethal@linux-sh.org>
    Signed-off-by: default avatarH. Peter Anvin <hpa@zytor.com>
    Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
    Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
ia32_aout.c 14.6 KB