diff options
Diffstat (limited to 'scripts/checkstack.pl')
| -rwxr-xr-x | scripts/checkstack.pl | 59 |
1 files changed, 44 insertions, 15 deletions
diff --git a/scripts/checkstack.pl b/scripts/checkstack.pl index 340ad692051..c05d586b1fe 100755 --- a/scripts/checkstack.pl +++ b/scripts/checkstack.pl @@ -12,30 +12,39 @@ # 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> +# AVR32 port by Haavard Skinnemoen (Atmel) # 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] # # TODO : Port to all architectures (one regex per arch) +use strict; + # check for arch # # $re is used for two matches: # $& (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, $funcre); { my $arch = shift; if ($arch eq "") { $arch = `uname -m`; + chomp($arch); } $x = "[0-9a-f]"; # hex character $xs = "[0-9a-f ]"; # hex character or space + $funcre = qr/^$x* <(.*)>:$/; if ($arch eq 'arm') { #c0008ffc: e24dd064 sub sp, sp, #100 ; 0x64 $re = qr/.*sub.*sp, sp, #(([0-9]{2}|[3-9])[0-9]{2})/o; @@ -46,9 +55,11 @@ 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; @@ -56,6 +67,10 @@ my (@stack, $re, $x, $xs); # 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 'metag') { + #400026fc: 40 00 00 82 ADD A0StP,A0StP,#0x8 + $re = qr/.*ADD.*A0StP,A0StP,\#(0x$x{1,8})/o; + $funcre = qr/^$x* <[^\$](.*)>:$/; } elsif ($arch eq 'mips64') { #8800402c: 67bdfff0 daddiu sp,sp,-16 $re = qr/.*daddiu.*sp,sp,-(([0-9]{2}|[3-9])[0-9]{2})/o; @@ -74,7 +89,10 @@ my (@stack, $re, $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 @@ -84,25 +102,19 @@ my (@stack, $re, $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 } } -sub bysize($) { - my ($asize, $bsize); - ($asize = $a) =~ s/.*: *(.*)$/$1/; - ($bsize = $b) =~ s/.*: *(.*)$/$1/; - $bsize <=> $asize -} - # # main() # -my $funcre = qr/^$x* <(.*)>:$/; -my $func; -my $file, $lastslash; +my ($func, $file, $lastslash); while (my $line = <STDIN>) { if ($line =~ m/$funcre/) { @@ -141,6 +153,23 @@ 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$size\n"; + } } -print sort bysize @stack; +# Sort output by size (last field) +print sort { ($b =~ /:\t*(\d+)$/)[0] <=> ($a =~ /:\t*(\d+)$/)[0] } @stack; |