Re: [PATCH] x86: make PTRACE_GETREGSET return 32-bit regs if 64-bit process entered kernel with int 80

H. Peter Anvin
2013-02-14T18:05:59Z

On 02/14/2013 07:00 AM, Oleg Nesterov wrote:
> On 02/14, Denys Vlasenko wrote:
>>
>> Determining personality of a ptraced process is a murky area.
>> On x86, for years strace was looking at segment selectors,
>> which is conceptually wrong: see, for example,
>> https://lkml.org/lkml/2012/1/18/320
>>

One proposal that keeps being on the table is to export a regset with
metadatam, including process mode at launch (i386, x86-64, x32).

-hpa

--
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel. I don't speak on their behalf.