linux-kernel - Re: [PATCH 3/4] gcov: add gcov profiling infrastructure

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Message-ID: <49A691B8.4070906@linux.vnet.ibm.com>
Date:	Thu, 26 Feb 2009 13:57:28 +0100
From:	Peter Oberparleiter <oberpar@...ux.vnet.ibm.com>
To:	Li Wei <W.Li@....COM>
CC:	linux-kernel@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	Andi Kleen <andi@...stfloor.org>,
	Huang Ying <ying.huang@...el.com>,
	Sam Ravnborg <sam@...nborg.org>
Subject: Re: [PATCH 3/4] gcov: add gcov profiling infrastructure

Li Wei wrote:
> On Thu, 2009-02-26 at 11:00 +0100, Peter Oberparleiter wrote:
>> Since a few RCs have been released since the last gcov-kernel patch 
>> post, I'll do a full re-post with a fix similar to the one you suggested 
>> included.
> 
> Thanks! It would be great if ".."s in object pathnames could also be
> supported in the forth coming re-post.

Sounds reasonable. I'll add a slightly modified patch:

---
 kernel/gcov/fs.c |    8 ++++++++
 1 file changed, 8 insertions(+)

Index: linux-2.6.29-rc6/kernel/gcov/fs.c
===================================================================
--- linux-2.6.29-rc6.orig/kernel/gcov/fs.c
+++ linux-2.6.29-rc6/kernel/gcov/fs.c
@@ -502,6 +502,14 @@ static void add_node(struct gcov_info *i
 		if (curr == next)
 			continue;
 		*next = 0;
+		if (strcmp(curr, ".") == 0)
+			continue;
+		if (strcmp(curr, "..") == 0) {
+			parent = parent->parent;
+			if (!parent)
+				goto out_err;
+			continue;
+		}
 		node = get_child_by_name(parent, curr);
 		if (!node) {
 			node = new_node(parent, NULL, curr);

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