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-rwxr-xr-xscripts/checkstack.pl27
1 files changed, 25 insertions, 2 deletions
diff --git a/scripts/checkstack.pl b/scripts/checkstack.pl
index 340ad6920511..3eca62566d6b 100755
--- a/scripts/checkstack.pl
+++ b/scripts/checkstack.pl
@@ -26,12 +26,17 @@
# $& (whole re) matches the complete objdump line with the stack growth
# $1 (first bracket) matches the size of the stack growth
#
+# $dre is similar, but for dynamic stack redutions:
+# $& (whole re) matches the complete objdump line with the stack growth
+# $1 (first bracket) matches the dynamic amount of the stack growth
+#
# use anything else and feel the pain ;)
-my (@stack, $re, $x, $xs);
+my (@stack, $re, $dre, $x, $xs);
{
my $arch = shift;
if ($arch eq "") {
$arch = `uname -m`;
+ chomp($arch);
}
$x = "[0-9a-f]"; # hex character
@@ -46,9 +51,11 @@ my (@stack, $re, $x, $xs);
} elsif ($arch =~ /^i[3456]86$/) {
#c0105234: 81 ec ac 05 00 00 sub $0x5ac,%esp
$re = qr/^.*[as][du][db] \$(0x$x{1,8}),\%esp$/o;
+ $dre = qr/^.*[as][du][db] (%.*),\%esp$/o;
} elsif ($arch eq 'x86_64') {
# 2f60: 48 81 ec e8 05 00 00 sub $0x5e8,%rsp
$re = qr/^.*[as][du][db] \$(0x$x{1,8}),\%rsp$/o;
+ $dre = qr/^.*[as][du][db] (\%.*),\%rsp$/o;
} elsif ($arch eq 'ia64') {
#e0000000044011fc: 01 0f fc 8c adds r12=-384,r12
$re = qr/.*adds.*r12=-(([0-9]{2}|[3-9])[0-9]{2}),r12/o;
@@ -85,7 +92,7 @@ my (@stack, $re, $x, $xs);
# 0: 00 e8 38 01 LINK 0x4e0;
$re = qr/.*[[:space:]]LINK[[:space:]]*(0x$x{1,8})/o;
} else {
- print("wrong or unknown architecture\n");
+ print("wrong or unknown architecture \"$arch\"\n");
exit
}
}
@@ -141,6 +148,22 @@ while (my $line = <STDIN>) {
next if ($size < 100);
push @stack, "$intro$size\n";
}
+ elsif (defined $dre && $line =~ m/$dre/) {
+ my $size = "Dynamic ($1)";
+
+ next if $line !~ m/^($xs*)/;
+ my $addr = $1;
+ $addr =~ s/ /0/g;
+ $addr = "0x$addr";
+
+ my $intro = "$addr $func [$file]:";
+ my $padlen = 56 - length($intro);
+ while ($padlen > 0) {
+ $intro .= ' ';
+ $padlen -= 8;
+ }
+ push @stack, "$intro$size\n";
+ }
}
print sort bysize @stack;