From: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
To: akpm@osdl.org, linux-kernel@vger.kernel.org
Subject: [PATCH] Stringify support commas
Date: Sun, 20 Apr 2008 14:32:56 -0400 [thread overview]
Message-ID: <20080420183256.GA11350@Krystal> (raw)
#define MYDEF a, b, c
__stringify(MYDEF) should be replaced by "a, b, c", but compilation fails
because the __stringify macro expects only one argument. Fix it by using
variable macro arguments in __stringify and __stringify_1.
Needed in my current NMI safe iret paravirt support work so I can expand
a macro containing assembly code into a string.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
CC: akpm@osdl.org
---
include/linux/stringify.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
Index: linux-2.6-lttng/include/linux/stringify.h
===================================================================
--- linux-2.6-lttng.orig/include/linux/stringify.h 2008-04-20 14:25:12.000000000 -0400
+++ linux-2.6-lttng/include/linux/stringify.h 2008-04-20 14:25:33.000000000 -0400
@@ -6,7 +6,7 @@
* converts to "bar".
*/
-#define __stringify_1(x) #x
-#define __stringify(x) __stringify_1(x)
+#define __stringify_1(x...) #x
+#define __stringify(x...) __stringify_1(x)
#endif /* !__LINUX_STRINGIFY_H */
--
Mathieu Desnoyers
Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal
OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F BA06 3F25 A8FE 3BAE 9A68
next reply other threads:[~2008-04-20 18:33 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-04-20 18:32 Mathieu Desnoyers [this message]
2008-04-20 19:06 ` [PATCH] Stringify support commas Sam Ravnborg
2008-04-20 21:21 ` Mathieu Desnoyers
2008-04-21 6:11 ` Sam Ravnborg
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