From: Li Hong <lihong.hi@gmail.com>
Date: Wed, 28 Oct 2009 05:03:32 +0000 (+0800)
Subject: tracing: Check absolute path of input file in recordmcount.pl
X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=bdd3b052c63b2c19a0118937f500985c01a19956;p=deliverable%2Flinux.git

tracing: Check absolute path of input file in recordmcount.pl

The ftrace.c file may reference the mcount function and this may interfere
with the recordmcount.pl processing. To avoid this, the code does not
process the kernel/trace/ftrace.o. But currently the check is against
a relative path. This patch modifies the check to succeed if the path
is an absolute path.

Signed-off-by: Li Hong <lihong.hi@gmail.com>
LKML-Reference: <20091028050332.GC30758@uhli>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---

diff --git a/scripts/recordmcount.pl b/scripts/recordmcount.pl
index a512af1514bd..b80e5d04416b 100755
--- a/scripts/recordmcount.pl
+++ b/scripts/recordmcount.pl
@@ -123,7 +123,7 @@ my ($arch, $bits, $objdump, $objcopy, $cc,
     $ld, $nm, $rm, $mv, $is_module, $inputfile) = @ARGV;
 
 # This file refers to mcount and shouldn't be ftraced, so lets' ignore it
-if ($inputfile eq "kernel/trace/ftrace.o") {
+if ($inputfile =~ m,kernel/trace/ftrace\.o$,) {
     exit(0);
 }