| Index: third_party/libvpx/source/libvpx/build/make/ads2gas.pl
|
| diff --git a/third_party/libvpx/source/libvpx/build/make/ads2gas.pl b/third_party/libvpx/source/libvpx/build/make/ads2gas.pl
|
| new file mode 100755
|
| index 0000000000000000000000000000000000000000..7272424af2eb435357702a2530467c94636d3c07
|
| --- /dev/null
|
| +++ b/third_party/libvpx/source/libvpx/build/make/ads2gas.pl
|
| @@ -0,0 +1,236 @@
|
| +#!/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.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.pl > outputfile
|
| +#
|
| +
|
| +use FindBin;
|
| +use lib $FindBin::Bin;
|
| +use thumb;
|
| +
|
| +my $thumb = 0;
|
| +
|
| +foreach my $arg (@ARGV) {
|
| + $thumb = 1 if ($arg eq "-thumb");
|
| +}
|
| +
|
| +print "@ This file was created from a .asm file\n";
|
| +print "@ using the ads2gas.pl script.\n";
|
| +print "\t.equ DO1STROUNDING, 0\n";
|
| +if ($thumb) {
|
| + print "\t.syntax unified\n";
|
| + print "\t.thumb\n";
|
| +}
|
| +
|
| +# Stack of procedure names.
|
| +@proc_stack = ();
|
| +
|
| +while (<STDIN>)
|
| +{
|
| + undef $comment;
|
| + undef $line;
|
| + $comment_char = ";";
|
| + $comment_sub = "@";
|
| +
|
| + # Handle comments.
|
| + if (/$comment_char/)
|
| + {
|
| + $comment = "";
|
| + ($line, $comment) = /(.*?)$comment_char(.*)/;
|
| + $_ = $line;
|
| + }
|
| +
|
| + # Load and store alignment
|
| + s/@/,:/g;
|
| +
|
| + # Hexadecimal constants prefaced by 0x
|
| + s/#&/#0x/g;
|
| +
|
| + # Convert :OR: to |
|
| + s/:OR:/ | /g;
|
| +
|
| + # Convert :AND: to &
|
| + s/:AND:/ & /g;
|
| +
|
| + # Convert :NOT: to ~
|
| + s/:NOT:/ ~ /g;
|
| +
|
| + # Convert :SHL: to <<
|
| + s/:SHL:/ << /g;
|
| +
|
| + # Convert :SHR: to >>
|
| + s/:SHR:/ >> /g;
|
| +
|
| + # Convert ELSE to .else
|
| + s/\bELSE\b/.else/g;
|
| +
|
| + # Convert ENDIF to .endif
|
| + s/\bENDIF\b/.endif/g;
|
| +
|
| + # Convert ELSEIF to .elseif
|
| + s/\bELSEIF\b/.elseif/g;
|
| +
|
| + # Convert LTORG to .ltorg
|
| + s/\bLTORG\b/.ltorg/g;
|
| +
|
| + # Convert endfunc to nothing.
|
| + s/\bendfunc\b//ig;
|
| +
|
| + # Convert FUNCTION to nothing.
|
| + s/\bFUNCTION\b//g;
|
| + s/\bfunction\b//g;
|
| +
|
| + s/\bENTRY\b//g;
|
| + s/\bMSARMASM\b/0/g;
|
| + s/^\s+end\s+$//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/;
|
| +
|
| + # RN to .req
|
| + if (s/RN\s+([Rr]\d+|lr)/.req $1/)
|
| + {
|
| + print;
|
| + print "$comment_sub$comment\n" if defined $comment;
|
| + next;
|
| + }
|
| +
|
| + # Make function visible to linker, and make additional symbol with
|
| + # prepended underscore
|
| + s/EXPORT\s+\|([\$\w]*)\|/.global $1 \n\t.type $1, function/;
|
| + s/IMPORT\s+\|([\$\w]*)\|/.global $1/;
|
| +
|
| + s/EXPORT\s+([\$\w]*)/.global $1/;
|
| + s/export\s+([\$\w]*)/.global $1/;
|
| +
|
| + # 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\$]+)/$1:/ if !/EQU/;
|
| +
|
| + # ALIGN directive
|
| + s/\bALIGN\b/.balign/g;
|
| +
|
| + if ($thumb) {
|
| + # ARM code - we force everything to thumb with the declaration in the header
|
| + s/\sARM//g;
|
| + } else {
|
| + # ARM code
|
| + s/\sARM/.arm/g;
|
| + }
|
| +
|
| + # push/pop
|
| + s/(push\s+)(r\d+)/stmdb sp\!, \{$2\}/g;
|
| + s/(pop\s+)(r\d+)/ldmia sp\!, \{$2\}/g;
|
| +
|
| + # NEON code
|
| + s/(vld1.\d+\s+)(q\d+)/$1\{$2\}/g;
|
| + s/(vtbl.\d+\s+[^,]+),([^,]+)/$1,\{$2\}/g;
|
| +
|
| + if ($thumb) {
|
| + thumb::FixThumbInstructions($_, 0);
|
| + }
|
| +
|
| + # eabi_attributes numerical equivalents can be found in the
|
| + # "ARM IHI 0045C" document.
|
| +
|
| + # REQUIRE8 Stack is required to be 8-byte aligned
|
| + s/\sREQUIRE8/.eabi_attribute 24, 1 \@Tag_ABI_align_needed/g;
|
| +
|
| + # PRESERVE8 Stack 8-byte align is preserved
|
| + s/\sPRESERVE8/.eabi_attribute 25, 1 \@Tag_ABI_align_preserved/g;
|
| +
|
| + # Use PROC and ENDP to give the symbols a .size directive.
|
| + # This makes them show up properly in debugging tools like gdb and valgrind.
|
| + if (/\bPROC\b/)
|
| + {
|
| + my $proc;
|
| + /^_([\.0-9A-Z_a-z]\w+)\b/;
|
| + $proc = $1;
|
| + push(@proc_stack, $proc) if ($proc);
|
| + s/\bPROC\b/@ $&/;
|
| + }
|
| + if (/\bENDP\b/)
|
| + {
|
| + my $proc;
|
| + s/\bENDP\b/@ $&/;
|
| + $proc = pop(@proc_stack);
|
| + $_ = "\t.size $proc, .-$proc".$_ if ($proc);
|
| + }
|
| +
|
| + # EQU directive
|
| + s/(\S+\s+)EQU(\s+\S+)/.equ $1, $2/;
|
| +
|
| + # Begin macro definition
|
| + if (/\bMACRO\b/) {
|
| + $_ = <STDIN>;
|
| + s/^/.macro/;
|
| + s/\$//g; # remove formal param reference
|
| + s/;/@/g; # change comment characters
|
| + }
|
| +
|
| + # For macros, use \ to reference formal params
|
| + s/\$/\\/g; # End macro definition
|
| + s/\bMEND\b/.endm/; # No need to tell it where to stop assembling
|
| + next if /^\s*END\s*$/;
|
| + print;
|
| + print "$comment_sub$comment\n" if defined $comment;
|
| +}
|
| +
|
| +# Mark that this object doesn't need an executable stack.
|
| +printf ("\t.section\t.note.GNU-stack,\"\",\%\%progbits\n");
|
|
|