Re: [PATCH v2 16/31] arm64: ELF definitions

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Tue, Aug 21, 2012 at 07:17:19PM +0100, Geert Uytterhoeven wrote:
> On Tue, Aug 21, 2012 at 6:06 PM, Catalin Marinas
> <catalin.marinas@xxxxxxx> wrote:
> > But I can see on x86 that it always reports x86_64 even if the task is
> > x86_32.
> 
> Really?
> 
> $ uname -m
> x86_64
> $ linux32 uname -m
> i686
> $

Well, you set the personality explicitly with linux32. What I tested was
with an x86_32 uname called directly (without linux32) and even though
the ELF was a 32-bit one, it was reporting x86_64. In this AArch64
patch, a compat task was automatically setting the linux32 personality
(which x86 does not do).

Arnd's point is that the ELF file should not affect the personality and
hence the uname value. This should only be done by an explicit call to
sys_personality().

-- 
Catalin
--
To unsubscribe from this list: send the line "unsubscribe linux-arch" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html


[Index of Archives]     [Linux Kernel]     [Kernel Newbies]     [x86 Platform Driver]     [Netdev]     [Linux Wireless]     [Netfilter]     [Bugtraq]     [Linux Filesystems]     [Yosemite Discussion]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Samba]     [Device Mapper]

  Powered by Linux