linux-kernel - [PATCH v3 8/8] tracing: recordmcount.pl Die if we use a weak function as reference

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Date:	Wed, 28 Oct 2009 13:07:43 +0800
From:	Li Hong <lihong.hi@...il.com>
To:	Steven Rostedt <rostedt@...dmis.org>, linux-kernel@...r.kernel.org
Subject: [PATCH v3 8/8] tracing: recordmcount.pl Die if we use a weak
	function as reference

>From fef57ba56001830adaeea6aef479c623e3bce6c6 Mon Sep 17 00:00:00 2001
From: Li Hong <lihong.hi@...il.com>
Date: Tue, 27 Oct 2009 13:25:39 +0800
Subject: [PATCH] tracing: recordmcount.pl Die if we use a weak function as reference

Signed-off-by: Li Hong <lihong.hi@...il.com>
---
 scripts/recordmcount.pl |   12 ++++--------
 1 files changed, 4 insertions(+), 8 deletions(-)

diff --git a/scripts/recordmcount.pl b/scripts/recordmcount.pl
index ffb1123..0f733c9 100755
--- a/scripts/recordmcount.pl
+++ b/scripts/recordmcount.pl
@@ -348,15 +348,11 @@ sub update_funcs
 {
     return unless ($ref_func and @offsets);
 
-    # A section only had a weak function, to represent it.
-    # Unfortunately, a weak function may be overwritten by another
-    # function of the same name, making all these offsets incorrect.
-    # To be safe, we simply print a warning and bail.
+    # Sanity check on weak function. A weak function may be overwritten by 
+    # another function of the same name, making all these offsets incorrect.
     if (defined $weak{$ref_func}) {
-	print STDERR
-	    "$inputfile: WARNING: referencing weak function" .
-	    " $ref_func for mcount\n";
-	return;
+        die "$inputfile: ERROR: referencing weak function" .
+            " $ref_func for mcount\n";
     }
 
     # is this function static? If so, note this fact.
-- 
1.6.0.4

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