linux-kernel - [PATCH v2 2/4] scripts/checkstack.pl: Add argument to print stacks greather than value.

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Date:   Fri,  8 May 2020 16:33:15 +0530
From:   Maninder Singh <maninder1.s@...sung.com>
To:     yamada.masahiro@...ionext.com, george_davis@...tor.com
Cc:     linux-kernel@...r.kernel.org, a.sahrawat@...sung.com,
        arnd@...db.de, ak@...ux.intel.com,
        Maninder Singh <maninder1.s@...sung.com>,
        Vaneet Narang <v.narang@...sung.com>
Subject: [PATCH v2 2/4] scripts/checkstack.pl: Add argument to print stacks
 greather than value.

Add arguments support to print stacks which are greater than
argument value only.

Co-developed-by: Vaneet Narang <v.narang@...sung.com>
Signed-off-by: Vaneet Narang <v.narang@...sung.com>
Signed-off-by: Maninder Singh <maninder1.s@...sung.com>
---
 scripts/checkstack.pl | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/scripts/checkstack.pl b/scripts/checkstack.pl
index 6957108..bc23cc7 100755
--- a/scripts/checkstack.pl
+++ b/scripts/checkstack.pl
@@ -35,7 +35,7 @@ use strict;
 # $1 (first bracket) matches the dynamic amount of the stack growth
 #
 # use anything else and feel the pain ;)
-my (@stack, $re, $dre, $x, $xs, $funcre);
+my (@stack, $re, $dre, $x, $xs, $funcre, $min_stack);
 {
 	my $arch = shift;
 	if ($arch eq "") {
@@ -43,6 +43,11 @@ my (@stack, $re, $dre, $x, $xs, $funcre);
 		chomp($arch);
 	}
 
+	$min_stack = shift;
+	if ($min_stack eq "" || $min_stack !~ /^\d+$/) {
+		$min_stack = 100;
+	}
+
 	$x	= "[0-9a-f]";	# hex character
 	$xs	= "[0-9a-f ]";	# hex character or space
 	$funcre = qr/^$x* <(.*)>:$/;
@@ -117,7 +122,7 @@ while (my $line = <STDIN>) {
 	if ($line =~ m/$funcre/) {
 		$func = $1;
 		next if $line !~ m/^($xs*)/;
-		if ($total_size > 100) {
+		if ($total_size > $min_stack) {
 			push @stack, "$intro$total_size\n";
 		}
 
@@ -162,7 +167,7 @@ while (my $line = <STDIN>) {
 		$total_size += $size;
 	}
 }
-if ($total_size > 100) {
+if ($total_size > $min_stack) {
 	push @stack, "$intro$total_size\n";
 }
 
-- 
1.9.1