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[Qemu-devel] Re: [PATCH] efault - add data type to put_user()/get_user()
From: |
Thayne Harbaugh |
Subject: |
[Qemu-devel] Re: [PATCH] efault - add data type to put_user()/get_user() |
Date: |
Fri, 02 Nov 2007 17:26:23 -0600 |
On Wed, 2007-10-31 at 16:44 -0600, Thayne Harbaugh wrote:
> This patch updates get_user() and put_user() to take a third argument of
> data type. get_user() and put_user() use target address which are
> target_ulong and don't reflect the data type pointed to in target
> memory.
>
> Simply casting the target_ulong to a type before passing to
> get/put_user() is poor because target_ulong isn't always a simple cast
> to a host type (consider 32 bit on 64 bit where address are either
> extended or truncate). Also, simple casting of the argument to
> get/put_user() results in several warnings when target and long pointer
> sizes don't match.
>
> This patch has additional updates to fix places where get/put_user() are
> already used.
This is an updated patch that doesn't conflict with the
abi_long/abi_ulong changes from a couple weeks ago.
06_efault.patch.1.3
Description: Text Data
- [Qemu-devel] Re: [PATCH] efault - add data type to put_user()/get_user(),
Thayne Harbaugh <=