Delete bundled copy of OpenSSL and replace with README.

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

Index: openssl/crypto/sha/asm/sha1-thumb.pl
diff --git a/openssl/crypto/sha/asm/sha1-thumb.pl b/openssl/crypto/sha/asm/sha1-thumb.pl
deleted file mode 100644
index 7c9ea9b0296c0616cb58884e1d5612fe8d2917da..0000000000000000000000000000000000000000
--- a/openssl/crypto/sha/asm/sha1-thumb.pl
+++ /dev/null
@@ -1,259 +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/.
-# ====================================================================
-
-# sha1_block for Thumb.
-#
-# January 2007.
-#
-# The code does not present direct interest to OpenSSL, because of low
-# performance. Its purpose is to establish _size_ benchmark. Pretty
-# useless one I must say, because 30% or 88 bytes larger ARMv4 code
-# [avialable on demand] is almost _twice_ as fast. It should also be
-# noted that in-lining of .Lcommon and .Lrotate improves performance
-# by over 40%, while code increases by only 10% or 32 bytes. But once
-# again, the goal was to establish _size_ benchmark, not performance.
-
-$output=shift;
-open STDOUT,">$output";
-
-$inline=0;
-#$cheat_on_binutils=1;
-
-$t0="r0";
-$t1="r1";
-$t2="r2";
-$a="r3";
-$b="r4";
-$c="r5";
-$d="r6";
-$e="r7";
-$K="r8";	# "upper" registers can be used in add/sub and mov insns
-$ctx="r9";
-$inp="r10";
-$len="r11";
-$Xi="r12";
-
-sub common {
-<<___;
-	sub	$t0,#4
-	ldr	$t1,[$t0]
-	add	$e,$K			@ E+=K_xx_xx
-	lsl	$t2,$a,#5
-	add	$t2,$e
-	lsr	$e,$a,#27
-	add	$t2,$e			@ E+=ROR(A,27)
-	add	$t2,$t1			@ E+=X[i]
-___
-}
-sub rotate {
-<<___;
-	mov	$e,$d			@ E=D
-	mov	$d,$c			@ D=C
-	lsl	$c,$b,#30
-	lsr	$b,$b,#2
-	orr	$c,$b			@ C=ROR(B,2)
-	mov	$b,$a			@ B=A
-	add	$a,$t2,$t1		@ A=E+F_xx_xx(B,C,D)
-___
-}
-
-sub BODY_00_19 {
-$code.=$inline?&common():"\tbl	.Lcommon\n";
-$code.=<<___;
-	mov	$t1,$c
-	eor	$t1,$d
-	and	$t1,$b
-	eor	$t1,$d			@ F_00_19(B,C,D)
-___
-$code.=$inline?&rotate():"\tbl	.Lrotate\n";
-}
-
-sub BODY_20_39 {
-$code.=$inline?&common():"\tbl	.Lcommon\n";
-$code.=<<___;
-	mov	$t1,$b
-	eor	$t1,$c
-	eor	$t1,$d			@ F_20_39(B,C,D)
-___
-$code.=$inline?&rotate():"\tbl	.Lrotate\n";
-}
-
-sub BODY_40_59 {
-$code.=$inline?&common():"\tbl	.Lcommon\n";
-$code.=<<___;
-	mov	$t1,$b
-	and	$t1,$c
-	mov	$e,$b
-	orr	$e,$c
-	and	$e,$d
-	orr	$t1,$e			@ F_40_59(B,C,D)
-___
-$code.=$inline?&rotate():"\tbl	.Lrotate\n";
-}
-
-$code=<<___;
-.text
-.code	16
-
-.global	sha1_block_data_order
-.type	sha1_block_data_order,%function
-
-.align	2
-sha1_block_data_order:
-___
-if ($cheat_on_binutils) {
-$code.=<<___;
-.code	32
-	add	r3,pc,#1
-	bx	r3			@ switch to Thumb ISA
-.code	16
-___
-}
-$code.=<<___;
-	push	{r4-r7}
-	mov	r3,r8
-	mov	r4,r9
-	mov	r5,r10
-	mov	r6,r11
-	mov	r7,r12
-	push	{r3-r7,lr}
-	lsl	r2,#6
-	mov	$ctx,r0			@ save context
-	mov	$inp,r1			@ save inp
-	mov	$len,r2			@ save len
-	add	$len,$inp		@ $len to point at inp end
-
-.Lloop:
-	mov	$Xi,sp
-	mov	$t2,sp
-	sub	$t2,#16*4		@ [3]
-.LXload:
-	ldrb	$a,[$t1,#0]		@ $t1 is r1 and holds inp
-	ldrb	$b,[$t1,#1]
-	ldrb	$c,[$t1,#2]
-	ldrb	$d,[$t1,#3]
-	lsl	$a,#24
-	lsl	$b,#16
-	lsl	$c,#8
-	orr	$a,$b
-	orr	$a,$c
-	orr	$a,$d
-	add	$t1,#4
-	push	{$a}
-	cmp	sp,$t2
-	bne	.LXload			@ [+14*16]
-
-	mov	$inp,$t1		@ update $inp
-	sub	$t2,#32*4
-	sub	$t2,#32*4
-	mov	$e,#31			@ [+4]
-.LXupdate:
-	ldr	$a,[sp,#15*4]
-	ldr	$b,[sp,#13*4]
-	ldr	$c,[sp,#7*4]
-	ldr	$d,[sp,#2*4]
-	eor	$a,$b
-	eor	$a,$c
-	eor	$a,$d
-	ror	$a,$e
-	push	{$a}
-	cmp	sp,$t2
-	bne	.LXupdate		@ [+(11+1)*64]
-
-	ldmia	$t0!,{$a,$b,$c,$d,$e}	@ $t0 is r0 and holds ctx
-	mov	$t0,$Xi
-
-	ldr	$t2,.LK_00_19
-	mov	$t1,$t0
-	sub	$t1,#20*4
-	mov	$Xi,$t1
-	mov	$K,$t2			@ [+7+4]
-.L_00_19:
-___
-	&BODY_00_19();
-$code.=<<___;
-	cmp	$Xi,$t0
-	bne	.L_00_19		@ [+(2+9+4+2+8+2)*20]
-
-	ldr	$t2,.LK_20_39
-	mov	$t1,$t0
-	sub	$t1,#20*4
-	mov	$Xi,$t1
-	mov	$K,$t2			@ [+5]
-.L_20_39_or_60_79:
-___
-	&BODY_20_39();
-$code.=<<___;
-	cmp	$Xi,$t0
-	bne	.L_20_39_or_60_79	@ [+(2+9+3+2+8+2)*20*2]
-	cmp	sp,$t0
-	beq	.Ldone			@ [+2]
-
-	ldr	$t2,.LK_40_59
-	mov	$t1,$t0
-	sub	$t1,#20*4
-	mov	$Xi,$t1
-	mov	$K,$t2			@ [+5]
-.L_40_59:
-___
-	&BODY_40_59();
-$code.=<<___;
-	cmp	$Xi,$t0
-	bne	.L_40_59		@ [+(2+9+6+2+8+2)*20]
-
-	ldr	$t2,.LK_60_79
-	mov	$Xi,sp
-	mov	$K,$t2
-	b	.L_20_39_or_60_79	@ [+4]
-.Ldone:
-	mov	$t0,$ctx
-	ldr	$t1,[$t0,#0]
-	ldr	$t2,[$t0,#4]
-	add	$a,$t1
-	ldr	$t1,[$t0,#8]
-	add	$b,$t2
-	ldr	$t2,[$t0,#12]
-	add	$c,$t1
-	ldr	$t1,[$t0,#16]
-	add	$d,$t2
-	add	$e,$t1
-	stmia	$t0!,{$a,$b,$c,$d,$e}	@ [+20]
-
-	add	sp,#80*4		@ deallocate stack frame
-	mov	$t0,$ctx		@ restore ctx
-	mov	$t1,$inp		@ restore inp
-	cmp	$t1,$len
-	beq	.Lexit
-	b	.Lloop			@ [+6] total 3212 cycles
-.Lexit:
-	pop	{r2-r7}
-	mov	r8,r2
-	mov	r9,r3
-	mov	r10,r4
-	mov	r11,r5
-	mov	r12,r6
-	mov	lr,r7
-	pop	{r4-r7}
-	bx	lr
-.align	2
-___
-$code.=".Lcommon:\n".&common()."\tmov	pc,lr\n" if (!$inline);
-$code.=".Lrotate:\n".&rotate()."\tmov	pc,lr\n" if (!$inline);
-$code.=<<___;
-.align	2
-.LK_00_19:	.word	0x5a827999
-.LK_20_39:	.word	0x6ed9eba1
-.LK_40_59:	.word	0x8f1bbcdc
-.LK_60_79:	.word	0xca62c1d6
-.size	sha1_block_data_order,.-sha1_block_data_order
-.asciz	"SHA1 block transform for Thumb, CRYPTOGAMS by <appro\@openssl.org>"
-___
-
-print $code;
-close STDOUT; # enforce flush