| Index: third_party/libvpx/source/libvpx/build/make/ads2gas_apple.pl
|
| diff --git a/third_party/libvpx/source/libvpx/build/make/ads2gas_apple.pl b/third_party/libvpx/source/libvpx/build/make/ads2gas_apple.pl
|
| new file mode 100755
|
| index 0000000000000000000000000000000000000000..a82f3eba8ed08b0f6e259cd425bd64297e9305f6
|
| --- /dev/null
|
| +++ b/third_party/libvpx/source/libvpx/build/make/ads2gas_apple.pl
|
| @@ -0,0 +1,235 @@
|
| +#!/usr/bin/env perl
|
| +##
|
| +## Copyright (c) 2010 The WebM project authors. All Rights Reserved.
|
| +##
|
| +## Use of this source code is governed by a BSD-style license
|
| +## that can be found in the LICENSE file in the root of the source
|
| +## tree. An additional intellectual property rights grant can be found
|
| +## in the file PATENTS. All contributing project authors may
|
| +## be found in the AUTHORS file in the root of the source tree.
|
| +##
|
| +
|
| +
|
| +# ads2gas_apple.pl
|
| +# Author: Eric Fung (efung (at) acm.org)
|
| +#
|
| +# Convert ARM Developer Suite 1.0.1 syntax assembly source to GNU as format
|
| +#
|
| +# Usage: cat inputfile | perl ads2gas_apple.pl > outputfile
|
| +#
|
| +
|
| +my $chromium = 0;
|
| +
|
| +foreach my $arg (@ARGV) {
|
| + $chromium = 1 if ($arg eq "-chromium");
|
| +}
|
| +
|
| +print "@ This file was created from a .asm file\n";
|
| +print "@ using the ads2gas_apple.pl script.\n\n";
|
| +print "\t.set WIDE_REFERENCE, 0\n";
|
| +print "\t.set ARCHITECTURE, 5\n";
|
| +print "\t.set DO1STROUNDING, 0\n";
|
| +
|
| +my %register_aliases;
|
| +my %macro_aliases;
|
| +
|
| +my @mapping_list = ("\$0", "\$1", "\$2", "\$3", "\$4", "\$5", "\$6", "\$7", "\$8", "\$9");
|
| +
|
| +my @incoming_array;
|
| +
|
| +my @imported_functions;
|
| +
|
| +# Perl trim function to remove whitespace from the start and end of the string
|
| +sub trim($)
|
| +{
|
| + my $string = shift;
|
| + $string =~ s/^\s+//;
|
| + $string =~ s/\s+$//;
|
| + return $string;
|
| +}
|
| +
|
| +while (<STDIN>)
|
| +{
|
| + # Load and store alignment
|
| + s/@/,:/g;
|
| +
|
| + # Comment character
|
| + s/;/ @/g;
|
| +
|
| + # Hexadecimal constants prefaced by 0x
|
| + s/#&/#0x/g;
|
| +
|
| + # Convert :OR: to |
|
| + s/:OR:/ | /g;
|
| +
|
| + # Convert :AND: to &
|
| + s/:AND:/ & /g;
|
| +
|
| + # Convert :NOT: to ~
|
| + s/:NOT:/ ~ /g;
|
| +
|
| + # Convert :SHL: to <<
|
| + s/:SHL:/ << /g;
|
| +
|
| + # Convert :SHR: to >>
|
| + s/:SHR:/ >> /g;
|
| +
|
| + # Convert ELSE to .else
|
| + s/\bELSE\b/.else/g;
|
| +
|
| + # Convert ENDIF to .endif
|
| + s/\bENDIF\b/.endif/g;
|
| +
|
| + # Convert ELSEIF to .elseif
|
| + s/\bELSEIF\b/.elseif/g;
|
| +
|
| + # Convert LTORG to .ltorg
|
| + s/\bLTORG\b/.ltorg/g;
|
| +
|
| + # Convert IF :DEF:to .if
|
| + # gcc doesn't have the ability to do a conditional
|
| + # if defined variable that is set by IF :DEF: on
|
| + # armasm, so convert it to a normal .if and then
|
| + # make sure to define a value elesewhere
|
| + if (s/\bIF :DEF:\b/.if /g)
|
| + {
|
| + s/=/==/g;
|
| + }
|
| +
|
| + # Convert IF to .if
|
| + if (s/\bIF\b/.if/g)
|
| + {
|
| + s/=/==/g;
|
| + }
|
| +
|
| + # Convert INCLUDE to .INCLUDE "file"
|
| + s/INCLUDE(\s*)(.*)$/.include $1\"$2\"/;
|
| +
|
| + # Code directive (ARM vs Thumb)
|
| + s/CODE([0-9][0-9])/.code $1/;
|
| +
|
| + # No AREA required
|
| + # But ALIGNs in AREA must be obeyed
|
| + s/^\s*AREA.*ALIGN=([0-9])$/.text\n.p2align $1/;
|
| + # If no ALIGN, strip the AREA and align to 4 bytes
|
| + s/^\s*AREA.*$/.text\n.p2align 2/;
|
| +
|
| + # DCD to .word
|
| + # This one is for incoming symbols
|
| + s/DCD\s+\|(\w*)\|/.long $1/;
|
| +
|
| + # DCW to .short
|
| + s/DCW\s+\|(\w*)\|/.short $1/;
|
| + s/DCW(.*)/.short $1/;
|
| +
|
| + # Constants defined in scope
|
| + s/DCD(.*)/.long $1/;
|
| + s/DCB(.*)/.byte $1/;
|
| +
|
| + # Build a hash of all the register - alias pairs.
|
| + if (s/(.*)RN(.*)/$1 .req $2/g)
|
| + {
|
| + $register_aliases{trim($1)} = trim($2);
|
| + next;
|
| + }
|
| +
|
| + while (($key, $value) = each(%register_aliases))
|
| + {
|
| + s/\b$key\b/$value/g;
|
| + }
|
| +
|
| + # Make function visible to linker, and make additional symbol with
|
| + # prepended underscore
|
| + s/EXPORT\s+\|([\$\w]*)\|/.globl _$1\n\t.globl $1/;
|
| +
|
| + # Prepend imported functions with _
|
| + if (s/IMPORT\s+\|([\$\w]*)\|/.globl $1/)
|
| + {
|
| + $function = trim($1);
|
| + push(@imported_functions, $function);
|
| + }
|
| +
|
| + foreach $function (@imported_functions)
|
| + {
|
| + s/$function/_$function/;
|
| + }
|
| +
|
| + # No vertical bars required; make additional symbol with prepended
|
| + # underscore
|
| + s/^\|(\$?\w+)\|/_$1\n\t$1:/g;
|
| +
|
| + # Labels need trailing colon
|
| +# s/^(\w+)/$1:/ if !/EQU/;
|
| + # put the colon at the end of the line in the macro
|
| + s/^([a-zA-Z_0-9\$]+)/$1:/ if !/EQU/;
|
| +
|
| + # ALIGN directive
|
| + s/\bALIGN\b/.balign/g;
|
| +
|
| + # Strip ARM
|
| + s/\sARM/@ ARM/g;
|
| +
|
| + # Strip REQUIRE8
|
| + #s/\sREQUIRE8/@ REQUIRE8/g;
|
| + s/\sREQUIRE8/@ /g;
|
| +
|
| + # Strip PRESERVE8
|
| + s/\sPRESERVE8/@ PRESERVE8/g;
|
| +
|
| + # Strip PROC and ENDPROC
|
| + s/\bPROC\b/@/g;
|
| + s/\bENDP\b/@/g;
|
| +
|
| + # EQU directive
|
| + s/(.*)EQU(.*)/.set $1, $2/;
|
| +
|
| + # Begin macro definition
|
| + if (/\bMACRO\b/)
|
| + {
|
| + # Process next line down, which will be the macro definition
|
| + $_ = <STDIN>;
|
| +
|
| + $trimmed = trim($_);
|
| +
|
| + # remove commas that are separating list
|
| + $trimmed =~ s/,//g;
|
| +
|
| + # string to array
|
| + @incoming_array = split(/\s+/, $trimmed);
|
| +
|
| + print ".macro @incoming_array[0]\n";
|
| +
|
| + # remove the first element, as that is the name of the macro
|
| + shift (@incoming_array);
|
| +
|
| + @macro_aliases{@incoming_array} = @mapping_list;
|
| +
|
| + next;
|
| + }
|
| +
|
| + while (($key, $value) = each(%macro_aliases))
|
| + {
|
| + $key =~ s/\$/\\\$/;
|
| + s/$key\b/$value/g;
|
| + }
|
| +
|
| + # For macros, use \ to reference formal params
|
| +# s/\$/\\/g; # End macro definition
|
| + s/\bMEND\b/.endm/; # No need to tell it where to stop assembling
|
| + next if /^\s*END\s*$/;
|
| +
|
| + # Clang used by Chromium differs slightly from clang in XCode in what it
|
| + # will accept in the assembly.
|
| + if ($chromium) {
|
| + s/qsubaddx/qsax/i;
|
| + s/qaddsubx/qasx/i;
|
| + s/ldrneb/ldrbne/i;
|
| + s/ldrneh/ldrhne/i;
|
| + s/(vqshrun\.s16 .*, \#)0$/${1}8/i;
|
| +
|
| + # http://llvm.org/bugs/show_bug.cgi?id=16022
|
| + s/\.include/#include/;
|
| + }
|
| +
|
| + print;
|
| +}
|
|
|