mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-08-20 00:48:52 +09:00
![Andy Shevchenko](/assets/img/avatar_default.png)
AVR32 is gone. It's already more than two years for no support in Buildroot, even longer there is no support in GCC (last version is heavily patched 4.2.4). Linux kernel v4.12 got rid of it (and v4.11 didn't build successfully). There is no good point to keep this support in U-Boot either. Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Tom Rini <trini@konsulko.com> Reviewed-by: Heiko Schocher <hs@denx.de> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
172 lines
5.2 KiB
Perl
Executable File
172 lines
5.2 KiB
Perl
Executable File
#!/usr/bin/perl
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# Check the stack usage of functions
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#
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# Copyright Joern Engel <joern@lazybastard.org>
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# Inspired by Linus Torvalds
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# Original idea maybe from Keith Owens
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# s390 port and big speedup by Arnd Bergmann <arnd@bergmann-dalldorf.de>
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# Mips port by Juan Quintela <quintela@mandrakesoft.com>
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# IA64 port via Andreas Dilger
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# Arm port by Holger Schurig
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# sh64 port by Paul Mundt
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# Random bits by Matt Mackall <mpm@selenic.com>
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# M68k port by Geert Uytterhoeven and Andreas Schwab
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# AArch64, PARISC ports by Kyle McMartin
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# sparc port by Martin Habets <errandir_news@mph.eclipse.co.uk>
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#
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# Usage:
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# objdump -d vmlinux | scripts/checkstack.pl [arch]
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#
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# TODO : Port to all architectures (one regex per arch)
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use strict;
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# check for arch
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#
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# $re is used for two matches:
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# $& (whole re) matches the complete objdump line with the stack growth
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# $1 (first bracket) matches the size of the stack growth
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#
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# $dre is similar, but for dynamic stack redutions:
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# $& (whole re) matches the complete objdump line with the stack growth
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# $1 (first bracket) matches the dynamic amount of the stack growth
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#
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# use anything else and feel the pain ;)
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my (@stack, $re, $dre, $x, $xs, $funcre);
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{
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my $arch = shift;
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if ($arch eq "") {
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$arch = `uname -m`;
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chomp($arch);
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}
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$x = "[0-9a-f]"; # hex character
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$xs = "[0-9a-f ]"; # hex character or space
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$funcre = qr/^$x* <(.*)>:$/;
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if ($arch eq 'aarch64') {
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#ffffffc0006325cc: a9bb7bfd stp x29, x30, [sp,#-80]!
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$re = qr/^.*stp.*sp,\#-([0-9]{1,8})\]\!/o;
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} elsif ($arch eq 'arm') {
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#c0008ffc: e24dd064 sub sp, sp, #100 ; 0x64
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$re = qr/.*sub.*sp, sp, #(([0-9]{2}|[3-9])[0-9]{2})/o;
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} elsif ($arch =~ /^x86(_64)?$/ || $arch =~ /^i[3456]86$/) {
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#c0105234: 81 ec ac 05 00 00 sub $0x5ac,%esp
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# or
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# 2f60: 48 81 ec e8 05 00 00 sub $0x5e8,%rsp
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$re = qr/^.*[as][du][db] \$(0x$x{1,8}),\%(e|r)sp$/o;
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$dre = qr/^.*[as][du][db] (%.*),\%(e|r)sp$/o;
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} elsif ($arch eq 'ia64') {
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#e0000000044011fc: 01 0f fc 8c adds r12=-384,r12
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$re = qr/.*adds.*r12=-(([0-9]{2}|[3-9])[0-9]{2}),r12/o;
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} elsif ($arch eq 'm68k') {
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# 2b6c: 4e56 fb70 linkw %fp,#-1168
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# 1df770: defc ffe4 addaw #-28,%sp
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$re = qr/.*(?:linkw %fp,|addaw )#-([0-9]{1,4})(?:,%sp)?$/o;
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} elsif ($arch eq 'metag') {
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#400026fc: 40 00 00 82 ADD A0StP,A0StP,#0x8
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$re = qr/.*ADD.*A0StP,A0StP,\#(0x$x{1,8})/o;
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$funcre = qr/^$x* <[^\$](.*)>:$/;
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} elsif ($arch eq 'mips64') {
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#8800402c: 67bdfff0 daddiu sp,sp,-16
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$re = qr/.*daddiu.*sp,sp,-(([0-9]{2}|[3-9])[0-9]{2})/o;
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} elsif ($arch eq 'mips') {
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#88003254: 27bdffe0 addiu sp,sp,-32
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$re = qr/.*addiu.*sp,sp,-(([0-9]{2}|[3-9])[0-9]{2})/o;
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} elsif ($arch eq 'parisc' || $arch eq 'parisc64') {
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$re = qr/.*ldo ($x{1,8})\(sp\),sp/o;
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} elsif ($arch eq 'ppc') {
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#c00029f4: 94 21 ff 30 stwu r1,-208(r1)
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$re = qr/.*stwu.*r1,-($x{1,8})\(r1\)/o;
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} elsif ($arch eq 'ppc64') {
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#XXX
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$re = qr/.*stdu.*r1,-($x{1,8})\(r1\)/o;
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} elsif ($arch eq 'powerpc') {
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$re = qr/.*st[dw]u.*r1,-($x{1,8})\(r1\)/o;
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} elsif ($arch =~ /^s390x?$/) {
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# 11160: a7 fb ff 60 aghi %r15,-160
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# or
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# 100092: e3 f0 ff c8 ff 71 lay %r15,-56(%r15)
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$re = qr/.*(?:lay|ag?hi).*\%r15,-(([0-9]{2}|[3-9])[0-9]{2})
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(?:\(\%r15\))?$/ox;
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} elsif ($arch =~ /^sh64$/) {
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#XXX: we only check for the immediate case presently,
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# though we will want to check for the movi/sub
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# pair for larger users. -- PFM.
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#a00048e0: d4fc40f0 addi.l r15,-240,r15
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$re = qr/.*addi\.l.*r15,-(([0-9]{2}|[3-9])[0-9]{2}),r15/o;
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} elsif ($arch =~ /^blackfin$/) {
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# 0: 00 e8 38 01 LINK 0x4e0;
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$re = qr/.*[[:space:]]LINK[[:space:]]*(0x$x{1,8})/o;
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} elsif ($arch eq 'sparc' || $arch eq 'sparc64') {
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# f0019d10: 9d e3 bf 90 save %sp, -112, %sp
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$re = qr/.*save.*%sp, -(([0-9]{2}|[3-9])[0-9]{2}), %sp/o;
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} else {
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print("wrong or unknown architecture \"$arch\"\n");
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exit
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}
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}
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#
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# main()
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#
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my ($func, $file, $lastslash);
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while (my $line = <STDIN>) {
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if ($line =~ m/$funcre/) {
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$func = $1;
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}
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elsif ($line =~ m/(.*):\s*file format/) {
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$file = $1;
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$file =~ s/\.ko//;
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$lastslash = rindex($file, "/");
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if ($lastslash != -1) {
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$file = substr($file, $lastslash + 1);
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}
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}
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elsif ($line =~ m/$re/) {
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my $size = $1;
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$size = hex($size) if ($size =~ /^0x/);
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if ($size > 0xf0000000) {
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$size = - $size;
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$size += 0x80000000;
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$size += 0x80000000;
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}
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next if ($size > 0x10000000);
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next if $line !~ m/^($xs*)/;
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my $addr = $1;
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$addr =~ s/ /0/g;
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$addr = "0x$addr";
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my $intro = "$addr $func [$file]:";
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my $padlen = 56 - length($intro);
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while ($padlen > 0) {
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$intro .= ' ';
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$padlen -= 8;
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}
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next if ($size < 100);
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push @stack, "$intro$size\n";
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}
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elsif (defined $dre && $line =~ m/$dre/) {
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my $size = "Dynamic ($1)";
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next if $line !~ m/^($xs*)/;
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my $addr = $1;
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$addr =~ s/ /0/g;
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$addr = "0x$addr";
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my $intro = "$addr $func [$file]:";
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my $padlen = 56 - length($intro);
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while ($padlen > 0) {
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$intro .= ' ';
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$padlen -= 8;
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}
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push @stack, "$intro$size\n";
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}
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}
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# Sort output by size (last field)
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print sort { ($b =~ /:\t*(\d+)$/)[0] <=> ($a =~ /:\t*(\d+)$/)[0] } @stack;
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