Delete bundled copy of OpenSSL and replace with README.

openssl/crypto/sha/asm/sha1-ppc.pl

Index: openssl/crypto/sha/asm/sha1-ppc.pl
diff --git a/openssl/crypto/sha/asm/sha1-ppc.pl b/openssl/crypto/sha/asm/sha1-ppc.pl
deleted file mode 100644
index 2140dd2f8dd6fc46b2fb85e8916376c21a0cfaf9..0000000000000000000000000000000000000000
--- a/openssl/crypto/sha/asm/sha1-ppc.pl
+++ /dev/null
@@ -1,326 +0,0 @@
-#!/usr/bin/env perl
-
-# ====================================================================
-# Written by Andy Polyakov <appro@fy.chalmers.se> for the OpenSSL
-# project. The module is, however, dual licensed under OpenSSL and
-# CRYPTOGAMS licenses depending on where you obtain it. For further
-# details see http://www.openssl.org/~appro/cryptogams/.
-# ====================================================================
-
-# I let hardware handle unaligned input(*), except on page boundaries
-# (see below for details). Otherwise straightforward implementation
-# with X vector in register bank. The module is big-endian [which is
-# not big deal as there're no little-endian targets left around].
-#
-# (*) this means that this module is inappropriate for PPC403? Does
-#     anybody know if pre-POWER3 can sustain unaligned load?
-
-# 			-m64	-m32
-# ----------------------------------
-# PPC970,gcc-4.0.0	+76%	+59%
-# Power6,xlc-7		+68%	+33%
-
-$flavour = shift;
-
-if ($flavour =~ /64/) {
-	$SIZE_T	=8;
-	$LRSAVE	=2*$SIZE_T;
-	$UCMP	="cmpld";
-	$STU	="stdu";
-	$POP	="ld";
-	$PUSH	="std";
-} elsif ($flavour =~ /32/) {
-	$SIZE_T	=4;
-	$LRSAVE	=$SIZE_T;
-	$UCMP	="cmplw";
-	$STU	="stwu";
-	$POP	="lwz";
-	$PUSH	="stw";
-} else { die "nonsense $flavour"; }
-
-$0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
-( $xlate="${dir}ppc-xlate.pl" and -f $xlate ) or
-( $xlate="${dir}../../perlasm/ppc-xlate.pl" and -f $xlate) or
-die "can't locate ppc-xlate.pl";
-
-open STDOUT,"| $^X $xlate $flavour ".shift || die "can't call $xlate: $!";
-
-$FRAME=24*$SIZE_T+64;
-$LOCALS=6*$SIZE_T;
-
-$K  ="r0";
-$sp ="r1";
-$toc="r2";
-$ctx="r3";
-$inp="r4";
-$num="r5";
-$t0 ="r15";
-$t1 ="r6";
-
-$A  ="r7";
-$B  ="r8";
-$C  ="r9";
-$D  ="r10";
-$E  ="r11";
-$T  ="r12";
-
-@V=($A,$B,$C,$D,$E,$T);
-@X=("r16","r17","r18","r19","r20","r21","r22","r23",
-    "r24","r25","r26","r27","r28","r29","r30","r31");
-
-sub BODY_00_19 {
-my ($i,$a,$b,$c,$d,$e,$f)=@_;
-my $j=$i+1;
-$code.=<<___ if ($i==0);
-	lwz	@X[$i],`$i*4`($inp)
-___
-$code.=<<___ if ($i<15);
-	lwz	@X[$j],`$j*4`($inp)
-	add	$f,$K,$e
-	rotlwi	$e,$a,5
-	add	$f,$f,@X[$i]
-	and	$t0,$c,$b
-	add	$f,$f,$e
-	andc	$t1,$d,$b
-	rotlwi	$b,$b,30
-	or	$t0,$t0,$t1
-	add	$f,$f,$t0
-___
-$code.=<<___ if ($i>=15);
-	add	$f,$K,$e
-	rotlwi	$e,$a,5
-	xor	@X[$j%16],@X[$j%16],@X[($j+2)%16]
-	add	$f,$f,@X[$i%16]
-	and	$t0,$c,$b
-	xor	@X[$j%16],@X[$j%16],@X[($j+8)%16]
-	add	$f,$f,$e
-	andc	$t1,$d,$b
-	rotlwi	$b,$b,30
-	or	$t0,$t0,$t1
-	xor	@X[$j%16],@X[$j%16],@X[($j+13)%16]
-	add	$f,$f,$t0
-	rotlwi	@X[$j%16],@X[$j%16],1
-___
-}
-
-sub BODY_20_39 {
-my ($i,$a,$b,$c,$d,$e,$f)=@_;
-my $j=$i+1;
-$code.=<<___ if ($i<79);
-	add	$f,$K,$e
-	rotlwi	$e,$a,5
-	xor	@X[$j%16],@X[$j%16],@X[($j+2)%16]
-	add	$f,$f,@X[$i%16]
-	xor	$t0,$b,$c
-	xor	@X[$j%16],@X[$j%16],@X[($j+8)%16]
-	add	$f,$f,$e
-	rotlwi	$b,$b,30
-	xor	$t0,$t0,$d
-	xor	@X[$j%16],@X[$j%16],@X[($j+13)%16]
-	add	$f,$f,$t0
-	rotlwi	@X[$j%16],@X[$j%16],1
-___
-$code.=<<___ if ($i==79);
-	add	$f,$K,$e
-	rotlwi	$e,$a,5
-	lwz	r16,0($ctx)
-	add	$f,$f,@X[$i%16]
-	xor	$t0,$b,$c
-	lwz	r17,4($ctx)
-	add	$f,$f,$e
-	rotlwi	$b,$b,30
-	lwz	r18,8($ctx)
-	xor	$t0,$t0,$d
-	lwz	r19,12($ctx)
-	add	$f,$f,$t0
-	lwz	r20,16($ctx)
-___
-}
-
-sub BODY_40_59 {
-my ($i,$a,$b,$c,$d,$e,$f)=@_;
-my $j=$i+1;
-$code.=<<___;
-	add	$f,$K,$e
-	rotlwi	$e,$a,5
-	xor	@X[$j%16],@X[$j%16],@X[($j+2)%16]
-	add	$f,$f,@X[$i%16]
-	and	$t0,$b,$c
-	xor	@X[$j%16],@X[$j%16],@X[($j+8)%16]
-	add	$f,$f,$e
-	or	$t1,$b,$c
-	rotlwi	$b,$b,30
-	xor	@X[$j%16],@X[$j%16],@X[($j+13)%16]
-	and	$t1,$t1,$d
-	or	$t0,$t0,$t1
-	rotlwi	@X[$j%16],@X[$j%16],1
-	add	$f,$f,$t0
-___
-}
-
-$code=<<___;
-.machine	"any"
-.text
-
-.globl	.sha1_block_data_order
-.align	4
-.sha1_block_data_order:
-	$STU	$sp,-$FRAME($sp)
-	mflr	r0
-	$PUSH	r15,`$FRAME-$SIZE_T*17`($sp)
-	$PUSH	r16,`$FRAME-$SIZE_T*16`($sp)
-	$PUSH	r17,`$FRAME-$SIZE_T*15`($sp)
-	$PUSH	r18,`$FRAME-$SIZE_T*14`($sp)
-	$PUSH	r19,`$FRAME-$SIZE_T*13`($sp)
-	$PUSH	r20,`$FRAME-$SIZE_T*12`($sp)
-	$PUSH	r21,`$FRAME-$SIZE_T*11`($sp)
-	$PUSH	r22,`$FRAME-$SIZE_T*10`($sp)
-	$PUSH	r23,`$FRAME-$SIZE_T*9`($sp)
-	$PUSH	r24,`$FRAME-$SIZE_T*8`($sp)
-	$PUSH	r25,`$FRAME-$SIZE_T*7`($sp)
-	$PUSH	r26,`$FRAME-$SIZE_T*6`($sp)
-	$PUSH	r27,`$FRAME-$SIZE_T*5`($sp)
-	$PUSH	r28,`$FRAME-$SIZE_T*4`($sp)
-	$PUSH	r29,`$FRAME-$SIZE_T*3`($sp)
-	$PUSH	r30,`$FRAME-$SIZE_T*2`($sp)
-	$PUSH	r31,`$FRAME-$SIZE_T*1`($sp)
-	$PUSH	r0,`$FRAME+$LRSAVE`($sp)
-	lwz	$A,0($ctx)
-	lwz	$B,4($ctx)
-	lwz	$C,8($ctx)
-	lwz	$D,12($ctx)
-	lwz	$E,16($ctx)
-	andi.	r0,$inp,3
-	bne	Lunaligned
-Laligned:
-	mtctr	$num
-	bl	Lsha1_block_private
-	b	Ldone
-
-; PowerPC specification allows an implementation to be ill-behaved
-; upon unaligned access which crosses page boundary. "Better safe
-; than sorry" principle makes me treat it specially. But I don't
-; look for particular offending word, but rather for 64-byte input
-; block which crosses the boundary. Once found that block is aligned
-; and hashed separately...
-.align	4
-Lunaligned:
-	subfic	$t1,$inp,4096
-	andi.	$t1,$t1,4095	; distance to closest page boundary
-	srwi.	$t1,$t1,6	; t1/=64
-	beq	Lcross_page
-	$UCMP	$num,$t1
-	ble-	Laligned	; didn't cross the page boundary
-	mtctr	$t1
-	subfc	$num,$t1,$num
-	bl	Lsha1_block_private
-Lcross_page:
-	li	$t1,16
-	mtctr	$t1
-	addi	r20,$sp,$LOCALS	; spot within the frame
-Lmemcpy:
-	lbz	r16,0($inp)
-	lbz	r17,1($inp)
-	lbz	r18,2($inp)
-	lbz	r19,3($inp)
-	addi	$inp,$inp,4
-	stb	r16,0(r20)
-	stb	r17,1(r20)
-	stb	r18,2(r20)
-	stb	r19,3(r20)
-	addi	r20,r20,4
-	bdnz	Lmemcpy
-
-	$PUSH	$inp,`$FRAME-$SIZE_T*18`($sp)
-	li	$t1,1
-	addi	$inp,$sp,$LOCALS
-	mtctr	$t1
-	bl	Lsha1_block_private
-	$POP	$inp,`$FRAME-$SIZE_T*18`($sp)
-	addic.	$num,$num,-1
-	bne-	Lunaligned
-
-Ldone:
-	$POP	r0,`$FRAME+$LRSAVE`($sp)
-	$POP	r15,`$FRAME-$SIZE_T*17`($sp)
-	$POP	r16,`$FRAME-$SIZE_T*16`($sp)
-	$POP	r17,`$FRAME-$SIZE_T*15`($sp)
-	$POP	r18,`$FRAME-$SIZE_T*14`($sp)
-	$POP	r19,`$FRAME-$SIZE_T*13`($sp)
-	$POP	r20,`$FRAME-$SIZE_T*12`($sp)
-	$POP	r21,`$FRAME-$SIZE_T*11`($sp)
-	$POP	r22,`$FRAME-$SIZE_T*10`($sp)
-	$POP	r23,`$FRAME-$SIZE_T*9`($sp)
-	$POP	r24,`$FRAME-$SIZE_T*8`($sp)
-	$POP	r25,`$FRAME-$SIZE_T*7`($sp)
-	$POP	r26,`$FRAME-$SIZE_T*6`($sp)
-	$POP	r27,`$FRAME-$SIZE_T*5`($sp)
-	$POP	r28,`$FRAME-$SIZE_T*4`($sp)
-	$POP	r29,`$FRAME-$SIZE_T*3`($sp)
-	$POP	r30,`$FRAME-$SIZE_T*2`($sp)
-	$POP	r31,`$FRAME-$SIZE_T*1`($sp)
-	mtlr	r0
-	addi	$sp,$sp,$FRAME
-	blr
-	.long	0
-	.byte	0,12,4,1,0x80,18,3,0
-	.long	0
-___
-
-# This is private block function, which uses tailored calling
-# interface, namely upon entry SHA_CTX is pre-loaded to given
-# registers and counter register contains amount of chunks to
-# digest...
-$code.=<<___;
-.align	4
-Lsha1_block_private:
-___
-$code.=<<___;	# load K_00_19
-	lis	$K,0x5a82
-	ori	$K,$K,0x7999
-___
-for($i=0;$i<20;$i++)	{ &BODY_00_19($i,@V); unshift(@V,pop(@V)); }
-$code.=<<___;	# load K_20_39
-	lis	$K,0x6ed9
-	ori	$K,$K,0xeba1
-___
-for(;$i<40;$i++)	{ &BODY_20_39($i,@V); unshift(@V,pop(@V)); }
-$code.=<<___;	# load K_40_59
-	lis	$K,0x8f1b
-	ori	$K,$K,0xbcdc
-___
-for(;$i<60;$i++)	{ &BODY_40_59($i,@V); unshift(@V,pop(@V)); }
-$code.=<<___;	# load K_60_79
-	lis	$K,0xca62
-	ori	$K,$K,0xc1d6
-___
-for(;$i<80;$i++)	{ &BODY_20_39($i,@V); unshift(@V,pop(@V)); }
-$code.=<<___;
-	add	r16,r16,$E
-	add	r17,r17,$T
-	add	r18,r18,$A
-	add	r19,r19,$B
-	add	r20,r20,$C
-	stw	r16,0($ctx)
-	mr	$A,r16
-	stw	r17,4($ctx)
-	mr	$B,r17
-	stw	r18,8($ctx)
-	mr	$C,r18
-	stw	r19,12($ctx)
-	mr	$D,r19
-	stw	r20,16($ctx)
-	mr	$E,r20
-	addi	$inp,$inp,`16*4`
-	bdnz-	Lsha1_block_private
-	blr
-	.long	0
-	.byte	0,12,0x14,0,0,0,0,0
-___
-$code.=<<___;
-.asciz	"SHA1 block transform for PPC, CRYPTOGAMS by <appro\@fy.chalmers.se>"
-___
-
-$code =~ s/\`([^\`]*)\`/eval $1/gem;
-print $code;
-close STDOUT;