From: Dan Carpenter <dan.carpenter@oracle.com>
To: Elena Reshetova <elena.reshetova@intel.com>
Cc: smatch@vger.kernel.org
Subject: Re: [PATCH] Quick trial on tracing host inputs
Date: Tue, 8 Mar 2022 15:38:32 +0300 [thread overview]
Message-ID: <20220308123832.GJ3315@kadam> (raw)
In-Reply-To: <20220308113416.GG3315@kadam>
On Tue, Mar 08, 2022 at 02:34:16PM +0300, Dan Carpenter wrote:
> void cpuid(unsigned int op, unsigned int *eax, unsigned int *ebx,
> unsigned int *ecx, unsigned int *edx);
>
> unsigned int a, b, c, d e;
> unsigned int test(void)
> {
> cpuid(0, &a, &b, &c, &d);
> __smatch_states("host");
> return a;
> }
>
> unsigned int test2(void)
> {
> unsigned int x = test();
> __smatch_states("host");
> }
I had to hack it a bit to get it to compile but my test seems to work.
"x" is correctl marked as host data correctly in test2().
regards,
dan carpenter
prev parent reply other threads:[~2022-03-08 12:40 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-08 8:56 [PATCH] Quick trial on tracing host inputs Elena Reshetova
2022-03-08 11:34 ` Dan Carpenter
2022-03-08 11:37 ` Dan Carpenter
2022-03-08 12:38 ` Dan Carpenter [this message]
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