Re: make checkstack on m68k

[Jörn Engel]

On Thu, 17 June 2004 13:41:59 +0200, Andreas Schwab wrote:
> Geert Uytterhoeven <geert@xxxxxxxxxxxxxx> writes:
> 
> > I tried to add m68k support to `make checkstack', but got stuck due to my
> > limited knowledge of complex perl expressions. I actually need to catch both
> > expressions (incl. the one I commented out). Anyone who can help?
> 
> Untested:
> 
>   $re = qr/.*(?:linkw %fp,|addw )#-([0-9]{1,4})(?:,%sp)?$/o;

Thanks!  Geert, can you test the patch below?

[ It will break all platforms except m68k, but I don't want to touch
those REs before someone confirms it to work. ]

Jörn

-- 
Simplicity is prerequisite for reliability.
-- Edsger W. Dijkstra



 checkstack.pl |    7 ++++++-
 1 files changed, 6 insertions(+), 1 deletion(-)

--- linux-2.6.7cow/scripts/checkstack.pl~cs_m68k	2004-06-17 14:58:25.000000000 +0200
+++ linux-2.6.7cow/scripts/checkstack.pl	2004-06-17 19:39:15.000000000 +0200
@@ -40,6 +40,11 @@
 	} elsif ($arch =~ /^ia64$/) {
 		#e0000000044011fc:       01 0f fc 8c     adds r12=-384,r12
 		$re = qr/.*adds.*r12=-(([0-9]{2}|[3-9])[0-9]{2}),r12/o;
+	 } elsif ($arch =~ /^m68k$/) {
+		#2b6c:       4e56 fb70       linkw %fp,#-1168
+		#1df770:       defc ffe4       addaw #-28,%sp
+		#$re = qr/.*linkw %fp,#-([0-9]{1,4})/o;
+		$re = qr/.*(?:linkw %fp,|addw )#-[0-9]{1,4}(?:,%sp)?$/o;
 	} elsif ($arch =~ /^mips64$/) {
 		#8800402c:       67bdfff0        daddiu  sp,sp,-16
 		$re = qr/.*daddiu.*sp,sp,-(([0-9]{2}|[3-9])[0-9]{2})/o;
@@ -76,7 +81,7 @@
 		$func = $1;
 	}
 	if ($line =~ m/$re/) {
-		my $size = $1;
+		my $size = $2;
 		$size = hex($size) if ($size =~ /^0x/);
 
 		if ($size > 0x80000000) {
-
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