From: Johannes Berg <johannes@sipsolutions.net>
To: Avi Kivity <avi@redhat.com>
Cc: kvm <kvm@vger.kernel.org>,
linux-kernel <linux-kernel@vger.kernel.org>,
Steven Rostedt <srostedt@redhat.com>
Subject: Re: kvmmmu tracing
Date: Tue, 24 Nov 2009 15:08:33 +0100 [thread overview]
Message-ID: <1259071713.3491.2.camel@johannes.local> (raw)
In-Reply-To: <4B0BB6B1.5010302@redhat.com>
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On Tue, 2009-11-24 at 12:34 +0200, Avi Kivity wrote:
> Um, C can be easily parsed with a C compiler. I don't think you can
> expect it to be a plain format string and argument list.
Actually, it turns out that it cannot be parsed even with a C compiler:
({ const char *ret = p->buffer + p->len; static const char *access_str[]
= { "---", "--x", "w--", "w-x", "-u-", "-ux", "wu-", "wux" }; union
kvm_mmu_page_role role;
...
userspace cannot possibly know from this what "union kvm_mmu_page_role"
is.
johannes
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next prev parent reply other threads:[~2009-11-24 14:08 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-11-23 11:06 kvmmmu tracing Johannes Berg
2009-11-23 14:58 ` Steven Rostedt
2009-11-23 15:46 ` Johannes Berg
2009-11-24 9:50 ` Avi Kivity
2009-11-24 10:05 ` Johannes Berg
2009-11-24 10:34 ` Avi Kivity
2009-11-24 14:08 ` Johannes Berg [this message]
2009-11-24 14:17 ` Avi Kivity
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