# Mips port by Juan Quintela <quintela@mandrakesoft.com>
# IA64 port via Andreas Dilger
# Arm port by Holger Schurig
+# sh64 port by Paul Mundt
# Random bits by Matt Mackall <mpm@selenic.com>
+# M68k port by Geert Uytterhoeven and Andreas Schwab
#
# Usage:
-# objdump -d vmlinux | stackcheck_ppc.pl [arch]
+# objdump -d vmlinux | stackcheck.pl [arch]
#
# TODO : Port to all architectures (one regex per arch)
# $1 (first bracket) matches the size of the stack growth
#
# use anything else and feel the pain ;)
+my (@stack, $re, $x, $xs);
{
my $arch = shift;
if ($arch eq "") {
$x = "[0-9a-f]"; # hex character
$xs = "[0-9a-f ]"; # hex character or space
- if ($arch =~ /^arm$/) {
+ if ($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 =~ /^i[3456]86$/) {
#c0105234: 81 ec ac 05 00 00 sub $0x5ac,%esp
$re = qr/^.*[as][du][db] \$(0x$x{1,8}),\%esp$/o;
- } elsif ($arch =~ /^ia64$/) {
+ } elsif ($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$/o;
+ } elsif ($arch eq 'ia64') {
#e0000000044011fc: 01 0f fc 8c adds r12=-384,r12
$re = qr/.*adds.*r12=-(([0-9]{2}|[3-9])[0-9]{2}),r12/o;
- } elsif ($arch =~ /^mips64$/) {
+ } elsif ($arch eq 'm68k') {
+ # 2b6c: 4e56 fb70 linkw %fp,#-1168
+ # 1df770: defc ffe4 addaw #-28,%sp
+ $re = qr/.*(?:linkw %fp,|addaw )#-([0-9]{1,4})(?:,%sp)?$/o;
+ } elsif ($arch eq 'mips64') {
#8800402c: 67bdfff0 daddiu sp,sp,-16
$re = qr/.*daddiu.*sp,sp,-(([0-9]{2}|[3-9])[0-9]{2})/o;
- } elsif ($arch =~ /^mips$/) {
+ } elsif ($arch eq 'mips') {
#88003254: 27bdffe0 addiu sp,sp,-32
$re = qr/.*addiu.*sp,sp,-(([0-9]{2}|[3-9])[0-9]{2})/o;
- } elsif ($arch =~ /^ppc$/) {
+ } elsif ($arch eq 'ppc') {
#c00029f4: 94 21 ff 30 stwu r1,-208(r1)
$re = qr/.*stwu.*r1,-($x{1,8})\(r1\)/o;
- } elsif ($arch =~ /^ppc64$/) {
+ } elsif ($arch eq 'ppc64') {
#XXX
$re = qr/.*stdu.*r1,-($x{1,8})\(r1\)/o;
} elsif ($arch =~ /^s390x?$/) {
# 11160: a7 fb ff 60 aghi %r15,-160
$re = qr/.*ag?hi.*\%r15,-(([0-9]{2}|[3-9])[0-9]{2})/o;
+ } elsif ($arch =~ /^sh64$/) {
+ #XXX: we only check for the immediate case presently,
+ # though we will want to check for the movi/sub
+ # pair for larger users. -- PFM.
+ #a00048e0: d4fc40f0 addi.l r15,-240,r15
+ $re = qr/.*addi\.l.*r15,-(([0-9]{2}|[3-9])[0-9]{2}),r15/o;
} else {
print("wrong or unknown architecture\n");
exit
}
sub bysize($) {
- ($asize = $a) =~ s/.* +(.*)$/$1/;
- ($bsize = $b) =~ s/.* +(.*)$/$1/;
+ my ($asize, $bsize);
+ ($asize = $a) =~ s/.*: *(.*)$/$1/;
+ ($bsize = $b) =~ s/.*: *(.*)$/$1/;
$bsize <=> $asize
}
#
# main()
#
-$funcre = qr/^$x* \<(.*)\>:$/;
-while ($line = <STDIN>) {
+my $funcre = qr/^$x* <(.*)>:$/;
+my $func;
+my $file, $lastslash;
+
+while (my $line = <STDIN>) {
if ($line =~ m/$funcre/) {
$func = $1;
}
- if ($line =~ m/$re/) {
+ elsif ($line =~ m/(.*):\s*file format/) {
+ $file = $1;
+ $file =~ s/\.ko//;
+ $lastslash = rindex($file, "/");
+ if ($lastslash != -1) {
+ $file = substr($file, $lastslash + 1);
+ }
+ }
+ elsif ($line =~ m/$re/) {
my $size = $1;
$size = hex($size) if ($size =~ /^0x/);
- if ($size > 0x80000000) {
+ if ($size > 0xf0000000) {
$size = - $size;
$size += 0x80000000;
$size += 0x80000000;
}
+ next if ($size > 0x10000000);
- $line =~ m/^($xs*).*/;
+ next if $line !~ m/^($xs*)/;
my $addr = $1;
$addr =~ s/ /0/g;
$addr = "0x$addr";
- my $intro = "$addr $func:";
+ my $intro = "$addr $func [$file]:";
my $padlen = 56 - length($intro);
while ($padlen > 0) {
$intro .= ' ';
$padlen -= 8;
}
next if ($size < 100);
- $stack[@stack] = "$intro$size\n";
+ push @stack, "$intro$size\n";
}
}
-@sortedstack = sort bysize @stack;
-
-foreach $i (@sortedstack) {
- print("$i");
-}
+print sort bysize @stack;