string: factorize skip_spaces and export it to be generally available

[safe/jmp/linux-2.6] / scripts / checkstack.pl

diff --git a/scripts/checkstack.pl b/scripts/checkstack.pl
index 358f96c..14ee68e 100755 (executable)
--- a/scripts/checkstack.pl
+++ b/scripts/checkstack.pl
@@ -14,6 +14,7 @@
 #      M68k port by Geert Uytterhoeven and Andreas Schwab
 #      AVR32 port by Haavard Skinnemoen <hskinnemoen@atmel.com>
 #      PARISC port by Kyle McMartin <kyle@parisc-linux.org>
+#      sparc port by Martin Habets <errandir_news@mph.eclipse.co.uk>
 #
 #      Usage:
 #      objdump -d vmlinux | scripts/checkstack.pl [arch]
@@ -36,6 +37,7 @@ my (@stack, $re, $dre, $x, $xs);
        my $arch = shift;
        if ($arch eq "") {
                $arch = `uname -m`;
+               chomp($arch);
        }
 
        $x      = "[0-9a-f]";   # hex character
@@ -80,7 +82,10 @@ my (@stack, $re, $dre, $x, $xs);
                $re = qr/.*st[dw]u.*r1,-($x{1,8})\(r1\)/o;
        } elsif ($arch =~ /^s390x?$/) {
                #   11160:       a7 fb ff 60             aghi   %r15,-160
-               $re = qr/.*ag?hi.*\%r15,-(([0-9]{2}|[3-9])[0-9]{2})/o;
+               # or
+               #  100092:       e3 f0 ff c8 ff 71       lay     %r15,-56(%r15)
+               $re = qr/.*(?:lay|ag?hi).*\%r15,-(([0-9]{2}|[3-9])[0-9]{2})
+                     (?:\(\%r15\))?$/ox;
        } elsif ($arch =~ /^sh64$/) {
                #XXX: we only check for the immediate case presently,
                #     though we will want to check for the movi/sub
@@ -90,8 +95,11 @@ my (@stack, $re, $dre, $x, $xs);
        } elsif ($arch =~ /^blackfin$/) {
                #   0:   00 e8 38 01     LINK 0x4e0;
                $re = qr/.*[[:space:]]LINK[[:space:]]*(0x$x{1,8})/o;
+       } elsif ($arch eq 'sparc' || $arch eq 'sparc64') {
+               # f0019d10:       9d e3 bf 90     save  %sp, -112, %sp
+               $re = qr/.*save.*%sp, -(([0-9]{2}|[3-9])[0-9]{2}), %sp/o;
        } else {
-               print("wrong or unknown architecture\n");
+               print("wrong or unknown architecture \"$arch\"\n");
                exit
        }
 }