From: Paul Chaignon <paul@cilium.io>
To: cocci@systeme.lip6.fr
Cc: paul.chaignon@gmail.com
Subject: [Cocci] Using a macro for variable attributes
Date: Tue, 28 Apr 2020 12:11:25 +0200 [thread overview]
Message-ID: <20200428101124.GA18321@Mem> (raw)
Hi all,
I am working on a small semantic patch to annotate specific variables in
our codebase with __attribute__((aligned(8))). The following program works
fine.
@r@
expression e1, e2;
identifier x;
@@
(
struct \(icmphdr\|icmp6hdr\) x
+ __attribute__((aligned(8)))
;
|
struct \(icmphdr\|icmp6hdr\) x
+ __attribute__((aligned(8)))
= ...;
)
... when exists
ctx_load_bytes(e1, e2, &x, ...)
However, when I replace __attribute__((aligned(8))) with our internal
macro __align_stack_8, it fails with the following error:
plus: parse error:
File "/home/paul/cilium/contrib/coccinelle/aligned.cocci", line 7, column 2, charpos = 77
around = '__align_stack_8',
whole content = + __align_stack_8
I've tried adding '#define __align_stack_8' in a file passed with
--macro-file, without success. Is this a known limitation for macros or
am I missing something?
Thanks,
Paul
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next reply other threads:[~2020-04-28 17:41 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-28 10:11 Paul Chaignon [this message]
2020-04-28 17:44 ` [Cocci] Using a macro for variable attributes Julia Lawall
2020-04-28 18:17 ` Paul Chaignon
2020-04-28 18:41 ` Julia Lawall
2020-04-28 18:58 ` Paul Chaignon
2020-04-30 15:40 ` Jaskaran Singh
2020-05-01 13:45 ` Paul Chaignon
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