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From: Denis Efremov <efremov@linux.com>
To: Coccinelle <cocci@systeme.lip6.fr>
Subject: [Cocci] How to match function-like macro calls, e.g. RTA_ALIGN(rta->rta_len)?
Date: Mon, 11 Jan 2021 23:06:12 +0300	[thread overview]
Message-ID: <854fdad7-cf2d-49d8-571c-1ac64fa90fb6@linux.com> (raw)

Hi,

Let's suppose I want to match otx_cpt_aead_cbc_aes_sha_setkey() function from
drivers/crypto/marvell/octeontx/otx_cptvf_algs.c file (linux kernel).

My pattern:
@exists@
identifier rta, param, key, keylen;
position p;
@@

otx_cpt_aead_cbc_aes_sha_setkey(...,
	unsigned char *key, unsigned int keylen)
{
	...
*	if (RTA_PAYLOAD(rta) < sizeof(*param))@p
		goto badkey;
	...
*	key += RTA_ALIGN(rta->rta_len);
*	keylen -= RTA_ALIGN(rta->rta_len);
	...
}

$ spatch --no-includes --include-headers --cocci-file test.cocci drivers/crypto/marvell/octeontx/otx_cptvf_algs.c
init_defs_builtins: /usr/lib64/coccinelle/standard.h
minus: parse error: 
  File "test.cocci", line 13, column 9, charpos = 219
  around = 'RTA_ALIGN',
  whole content = *     key += RTA_ALIGN(rta->rta_len);


What can I do to match RTA_ALIGN(...) lines?

Thanks,
Denis
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             reply	other threads:[~2021-01-11 20:06 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-01-11 20:06 Denis Efremov [this message]
2021-01-11 20:23 ` [Cocci] How to match function-like macro calls, e.g. RTA_ALIGN(rta->rta_len)? Julia Lawall
2021-01-11 20:32   ` Denis Efremov
2021-01-11 20:40     ` Julia Lawall
2021-01-11 20:49       ` Denis Efremov
2021-01-11 20:59         ` Julia Lawall
2021-01-11 21:12           ` Denis Efremov

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