This is the mail archive of the libc-alpha@sourceware.org mailing list for the glibc project.

Index Nav:	[Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav:	[Date Prev] [Date Next]	[Thread Prev] [Thread Next]
Other format:	[Raw text]

Re: X32 psABI status

From: Florian Weimer <fw at deneb dot enyo dot de>
To: "H.J. Lu" <hjl dot tools at gmail dot com>
Cc: x32-abi at googlegroups dot com, GCC Development <gcc at gcc dot gnu dot org>, GNU C Library <libc-alpha at sourceware dot org>, LKML <linux-kernel at vger dot kernel dot org>
Date: Sun, 13 Feb 2011 16:07:57 +0100
Subject: Re: X32 psABI status
References: <AANLkTikgfv+L9WS4s6n5mQcXWTzc6YMNUSsgBiAOmKbE@mail.gmail.com><87aai1gdr7.fsf@mid.deneb.enyo.de> <4D5711E0.7020306@zytor.com><87r5bcnwvw.fsf@mid.deneb.enyo.de><AANLkTi=Ybzkp_NHom==M-kL+URWmmZ1LoWVP-EYMkN-j@mail.gmail.com>

* H. J. Lu:

>> Actually, I'm wondering if you can do the translation in user space.
>> There already are 32-on-64 implementations in existence, without
>> kernel changes (recent Hotspot, LuaJIT, and probably some more).
>
> Please check out the x32 kernel source and provide feedback.

I still don't understand why you need a separate syscall table.  You
should really be able to run on an unmodified amd64 kernel, in 64 bit
mode.  This would imply that tools like strace don't need any porting
at all (you could just use the amd64 version), and even GDB would
mostly worked unchanged.

Follow-Ups:
- Re: X32 psABI status
  - From: H.J. Lu
- Re: X32 psABI status
  - From: Maciej W. Rozycki

References:
- X32 psABI status
  - From: H.J. Lu
- Re: X32 psABI status
  - From: Florian Weimer
- Re: X32 psABI status
  - From: H. Peter Anvin
- Re: X32 psABI status
  - From: Florian Weimer
- Re: X32 psABI status
  - From: H.J. Lu

Index Nav:	[Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav:	[Date Prev] [Date Next]	[Thread Prev] [Thread Next]