Commit 7dbdee2e authored Aug 06, 2009 by Steven Rostedt Committed by Ingo Molnar Aug 07, 2009

tracing: Fix recordmcount.pl to handle sections with only weak functions



Roland Dreier found that a section that contained only a weak
function in one of the staging drivers and this caused
recordmcount.pl to spit out a warning and fail.

Although it is strange that a driver would have a weak function, and
this function only be used in one place, it should not be something
to make recordmcount.pl fail.

This patch fixes the issue in a simple manner: if only weak
functions exist in a section, then that section will not be
recorded.

Reported-by: Roland Dreier <rdreier@cisco.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

parent 469535a5

scripts/recordmcount.pl

+2 −2

Original line number	Diff line number	Diff line
		@@ -393,7 +393,7 @@ while (<IN>) {
		$read_function = 0;
		}
		# print out any recorded offsets
		update_funcs() if ($text_found);
		update_funcs() if (defined($ref_func));

		# reset all markers and arrays
		$text_found = 0;
		@@ -444,7 +444,7 @@ while (<IN>) {
		}

		# dump out anymore offsets that may have been found
		update_funcs() if ($text_found);
		update_funcs() if (defined($ref_func));

		# If we did not find any mcount callers, we are done (do nothing).
		if (!$opened) {