Re: [Qemu-commits] [COMMIT 74d753a] linux-user: strace now handles guest stringscorrectly [v2]

[Riku Voipio]

On Wed, Jun 17, 2009 at 02:27:06AM +0400, malc wrote:
> On Tue, 16 Jun 2009, Anthony Liguori wrote:
> On my system the above line causes gcc to emit:

> In file included from /home/malc/x/rcs/git/qemu/linux-user/strace.c:12:
> /usr/include/linux/futex.h:48: error: field `__user' has incomplete type
> /usr/include/linux/futex.h:48: error: syntax error before '*' token
> /usr/include/linux/futex.h:63: error: field `list' has incomplete type
> /usr/include/linux/futex.h:83: error: field `__user' has incomplete type
> /usr/include/linux/futex.h:83: error: syntax error before '*' token
> make[1]: *** [strace.o] Error 1

> Following fixes it, but i wonder if there's better way:

It doesn't look like your kernel headers have been sanitized beforing 
installing.
futex.h exposed to userspace shouldn't have __user anywhere.

Previously distros did that by hand, nowadays you can do a "make 
headers_install"
in the kernel tree itself.