[AVR32] checkstack support

Add regexes to recognize stack frame adjustments in AVR32 code.

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>

diff --git a/scripts/checkstack.pl b/scripts/checkstack.pl
index f7844f6..6631586 100755 (executable)
--- a/scripts/checkstack.pl
+++ b/scripts/checkstack.pl
@@ -12,6 +12,7 @@
 #      sh64 port by Paul Mundt
 #      Random bits by Matt Mackall <mpm@selenic.com>
 #      M68k port by Geert Uytterhoeven and Andreas Schwab
+#      AVR32 port by Haavard Skinnemoen <hskinnemoen@atmel.com>
 #
 #      Usage:
 #      objdump -d vmlinux | stackcheck.pl [arch]
@@ -37,6 +38,10 @@ my (@stack, $re, $x, $xs);
        if ($arch eq 'arm') {
                #c0008ffc:      e24dd064        sub     sp, sp, #100    ; 0x64
                $re = qr/.*sub.*sp, sp, #(([0-9]{2}|[3-9])[0-9]{2})/o;
+       } elsif ($arch eq 'avr32') {
+               #8000008a:       20 1d           sub sp,4
+               #80000ca8:       fa cd 05 b0     sub sp,sp,1456
+               $re = qr/^.*sub.*sp.*,([0-9]{1,8})/o;
        } elsif ($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;