diff options
| author | Masahiro Yamada <yamada.m@jp.panasonic.com> | 2013-11-28 16:29:23 +0900 | 
|---|---|---|
| committer | Tom Rini <trini@ti.com> | 2013-12-13 09:18:45 -0500 | 
| commit | dd88ab325cfcc7f803afd40600571b3f9c79319c (patch) | |
| tree | a5c326330eec571614f1104badcfc41dcbd83661 /scripts/checkstack.pl | |
| parent | 392ba5256ab9bf017a9b7320ef0cee98862c908d (diff) | |
| download | olio-uboot-2014.01-dd88ab325cfcc7f803afd40600571b3f9c79319c.tar.xz olio-uboot-2014.01-dd88ab325cfcc7f803afd40600571b3f9c79319c.zip | |
Makefile: Move some scripts imported from Linux
We have some scripts imported from Linux Kernel:
setlocalversion, checkstack.pl, checkpatch.pl, cleanpatch
They are located under tools/ directory in U-Boot now.
But they were originally located under scripts/ directory
in Linux Kernel.
This commit moves them to the original location.
It is true that binutils-version.sh and dtc-version.sh
do not originate in Linux Kernel, but they should
be moved by analogy to gcc-version.sh.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Diffstat (limited to 'scripts/checkstack.pl')
| -rwxr-xr-x | scripts/checkstack.pl | 171 | 
1 files changed, 171 insertions, 0 deletions
| diff --git a/scripts/checkstack.pl b/scripts/checkstack.pl new file mode 100755 index 000000000..c1cdc0a92 --- /dev/null +++ b/scripts/checkstack.pl @@ -0,0 +1,171 @@ +#!/usr/bin/perl + +#	Check the stack usage of functions +# +#	Copyright Joern Engel <joern@lazybastard.org> +#	Inspired by Linus Torvalds +#	Original idea maybe from Keith Owens +#	s390 port and big speedup by Arnd Bergmann <arnd@bergmann-dalldorf.de> +#	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 +#	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, $dre, $x, $xs); +{ +	my $arch = shift; +	if ($arch eq "") { +		$arch = `uname -m`; +		chomp($arch); +	} + +	$x	= "[0-9a-f]";	# hex character +	$xs	= "[0-9a-f ]";	# hex character or space +	if ($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; +		$dre = qr/^.*[as][du][db]    (%.*),\%esp$/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 +		$re = qr/.*adds.*r12=-(([0-9]{2}|[3-9])[0-9]{2}),r12/o; +	} elsif ($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 eq 'mips') { +		#88003254:       27bdffe0        addiu   sp,sp,-32 +		$re = qr/.*addiu.*sp,sp,-(([0-9]{2}|[3-9])[0-9]{2})/o; +	} elsif ($arch eq 'parisc' || $arch eq 'parisc64') { +		$re = qr/.*ldo ($x{1,8})\(sp\),sp/o; +	} elsif ($arch eq 'ppc') { +		#c00029f4:       94 21 ff 30     stwu    r1,-208(r1) +		$re = qr/.*stwu.*r1,-($x{1,8})\(r1\)/o; +	} elsif ($arch eq 'ppc64') { +		#XXX +		$re = qr/.*stdu.*r1,-($x{1,8})\(r1\)/o; +	} elsif ($arch eq 'powerpc') { +		$re = qr/.*st[dw]u.*r1,-($x{1,8})\(r1\)/o; +	} elsif ($arch =~ /^s390x?$/) { +		#   11160:       a7 fb ff 60             aghi   %r15,-160 +		# 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 +		#     pair for larger users. -- PFM. +		#a00048e0:       d4fc40f0        addi.l  r15,-240,r15 +		$re = qr/.*addi\.l.*r15,-(([0-9]{2}|[3-9])[0-9]{2}),r15/o; +	} elsif ($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 +		$re = qr/.*save.*%sp, -(([0-9]{2}|[3-9])[0-9]{2}), %sp/o; +	} else { +		print("wrong or unknown architecture \"$arch\"\n"); +		exit +	} +} + +# +# main() +# +my $funcre = qr/^$x* <(.*)>:$/; +my ($func, $file, $lastslash); + +while (my $line = <STDIN>) { +	if ($line =~ m/$funcre/) { +		$func = $1; +	} +	elsif ($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 > 0xf0000000) { +			$size = - $size; +			$size += 0x80000000; +			$size += 0x80000000; +		} +		next if ($size > 0x10000000); + +		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 .= '	'; +			$padlen -= 8; +		} +		next if ($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$size\n"; +	} +} + +# Sort output by size (last field) +print sort { ($b =~ /:\t*(\d+)$/)[0] <=> ($a =~ /:\t*(\d+)$/)[0] } @stack; |