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Re: [Qemu-devel] [PATCH] syscall_target_errno.patch
From: |
Thayne Harbaugh |
Subject: |
Re: [Qemu-devel] [PATCH] syscall_target_errno.patch |
Date: |
Fri, 12 Oct 2007 09:00:54 -0600 |
On Wed, 2007-10-10 at 21:38 -0600, Thayne Harbaugh wrote:
<SNIP>
> I have noticed that many functions in syscall.c return a *host* errno
> when a *target* errno should be return. At the same time, there are
> several places in syscall.c:do_syscall() that immediately return an
> errno rather than setting the return value and exiting through the
> syscall return value reporting at the end of do_syscall().
>
> This patch addresses both of those problems at once rather than touching
> the exact same errno return lines twice in do_syscall().
The patch is better with parenthesis around the arguments of the
return_err() macro:
#define return_err(err) do { ret = -(err); goto fail; } while(0)