Delete bundled copy of OpenSSL and replace with README.

openssl/crypto/sha/asm/sha512-x86_64.pl

Index: openssl/crypto/sha/asm/sha512-x86_64.pl
diff --git a/openssl/crypto/sha/asm/sha512-x86_64.pl b/openssl/crypto/sha/asm/sha512-x86_64.pl
deleted file mode 100755
index 8d5167855781cc85e11af7a8b890a35e211a96f6..0000000000000000000000000000000000000000
--- a/openssl/crypto/sha/asm/sha512-x86_64.pl
+++ /dev/null
@@ -1,451 +0,0 @@
-#!/usr/bin/env perl
-#
-# ====================================================================
-# Written by Andy Polyakov <appro@fy.chalmers.se> for the OpenSSL
-# project. Rights for redistribution and usage in source and binary
-# forms are granted according to the OpenSSL license.
-# ====================================================================
-#
-# sha256/512_block procedure for x86_64.
-#
-# 40% improvement over compiler-generated code on Opteron. On EM64T
-# sha256 was observed to run >80% faster and sha512 - >40%. No magical
-# tricks, just straight implementation... I really wonder why gcc
-# [being armed with inline assembler] fails to generate as fast code.
-# The only thing which is cool about this module is that it's very
-# same instruction sequence used for both SHA-256 and SHA-512. In
-# former case the instructions operate on 32-bit operands, while in
-# latter - on 64-bit ones. All I had to do is to get one flavor right,
-# the other one passed the test right away:-)
-#
-# sha256_block runs in ~1005 cycles on Opteron, which gives you
-# asymptotic performance of 64*1000/1005=63.7MBps times CPU clock
-# frequency in GHz. sha512_block runs in ~1275 cycles, which results
-# in 128*1000/1275=100MBps per GHz. Is there room for improvement?
-# Well, if you compare it to IA-64 implementation, which maintains
-# X[16] in register bank[!], tends to 4 instructions per CPU clock
-# cycle and runs in 1003 cycles, 1275 is very good result for 3-way
-# issue Opteron pipeline and X[16] maintained in memory. So that *if*
-# there is a way to improve it, *then* the only way would be to try to
-# offload X[16] updates to SSE unit, but that would require "deeper"
-# loop unroll, which in turn would naturally cause size blow-up, not
-# to mention increased complexity! And once again, only *if* it's
-# actually possible to noticeably improve overall ILP, instruction
-# level parallelism, on a given CPU implementation in this case.
-#
-# Special note on Intel EM64T. While Opteron CPU exhibits perfect
-# perfromance ratio of 1.5 between 64- and 32-bit flavors [see above],
-# [currently available] EM64T CPUs apparently are far from it. On the
-# contrary, 64-bit version, sha512_block, is ~30% *slower* than 32-bit
-# sha256_block:-( This is presumably because 64-bit shifts/rotates
-# apparently are not atomic instructions, but implemented in microcode.
-
-$flavour = shift;
-$output  = shift;
-if ($flavour =~ /\./) { $output = $flavour; undef $flavour; }
-
-$win64=0; $win64=1 if ($flavour =~ /[nm]asm|mingw64/ || $output =~ /\.asm$/);
-
-$0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
-( $xlate="${dir}x86_64-xlate.pl" and -f $xlate ) or
-( $xlate="${dir}../../perlasm/x86_64-xlate.pl" and -f $xlate) or
-die "can't locate x86_64-xlate.pl";
-
-open OUT,"| \"$^X\" $xlate $flavour $output";
-*STDOUT=*OUT;
-
-if ($output =~ /512/) {
-	$func="sha512_block_data_order";
-	$TABLE="K512";
-	$SZ=8;
-	@ROT=($A,$B,$C,$D,$E,$F,$G,$H)=("%rax","%rbx","%rcx","%rdx",
-					"%r8", "%r9", "%r10","%r11");
-	($T1,$a0,$a1,$a2)=("%r12","%r13","%r14","%r15");
-	@Sigma0=(28,34,39);
-	@Sigma1=(14,18,41);
-	@sigma0=(1,  8, 7);
-	@sigma1=(19,61, 6);
-	$rounds=80;
-} else {
-	$func="sha256_block_data_order";
-	$TABLE="K256";
-	$SZ=4;
-	@ROT=($A,$B,$C,$D,$E,$F,$G,$H)=("%eax","%ebx","%ecx","%edx",
-					"%r8d","%r9d","%r10d","%r11d");
-	($T1,$a0,$a1,$a2)=("%r12d","%r13d","%r14d","%r15d");
-	@Sigma0=( 2,13,22);
-	@Sigma1=( 6,11,25);
-	@sigma0=( 7,18, 3);
-	@sigma1=(17,19,10);
-	$rounds=64;
-}
-
-$ctx="%rdi";	# 1st arg
-$round="%rdi";	# zaps $ctx
-$inp="%rsi";	# 2nd arg
-$Tbl="%rbp";
-
-$_ctx="16*$SZ+0*8(%rsp)";
-$_inp="16*$SZ+1*8(%rsp)";
-$_end="16*$SZ+2*8(%rsp)";
-$_rsp="16*$SZ+3*8(%rsp)";
-$framesz="16*$SZ+4*8";
-
-
-sub ROUND_00_15()
-{ my ($i,$a,$b,$c,$d,$e,$f,$g,$h) = @_;
-
-$code.=<<___;
-	ror	\$`$Sigma1[2]-$Sigma1[1]`,$a0
-	mov	$f,$a2
-	mov	$T1,`$SZ*($i&0xf)`(%rsp)
-
-	ror	\$`$Sigma0[2]-$Sigma0[1]`,$a1
-	xor	$e,$a0
-	xor	$g,$a2			# f^g
-
-	ror	\$`$Sigma1[1]-$Sigma1[0]`,$a0
-	add	$h,$T1			# T1+=h
-	xor	$a,$a1
-
-	add	($Tbl,$round,$SZ),$T1	# T1+=K[round]
-	and	$e,$a2			# (f^g)&e
-	mov	$b,$h
-
-	ror	\$`$Sigma0[1]-$Sigma0[0]`,$a1
-	xor	$e,$a0
-	xor	$g,$a2			# Ch(e,f,g)=((f^g)&e)^g
-
-	xor	$c,$h			# b^c
-	xor	$a,$a1
-	add	$a2,$T1			# T1+=Ch(e,f,g)
-	mov	$b,$a2
-
-	ror	\$$Sigma1[0],$a0	# Sigma1(e)
-	and	$a,$h			# h=(b^c)&a
-	and	$c,$a2			# b&c
-
-	ror	\$$Sigma0[0],$a1	# Sigma0(a)
-	add	$a0,$T1			# T1+=Sigma1(e)
-	add	$a2,$h			# h+=b&c (completes +=Maj(a,b,c)
-
-	add	$T1,$d			# d+=T1
-	add	$T1,$h			# h+=T1
-	lea	1($round),$round	# round++
-	add	$a1,$h			# h+=Sigma0(a)
-
-___
-}
-
-sub ROUND_16_XX()
-{ my ($i,$a,$b,$c,$d,$e,$f,$g,$h) = @_;
-
-$code.=<<___;
-	mov	`$SZ*(($i+1)&0xf)`(%rsp),$a0
-	mov	`$SZ*(($i+14)&0xf)`(%rsp),$a1
-	mov	$a0,$T1
-	mov	$a1,$a2
-
-	ror	\$`$sigma0[1]-$sigma0[0]`,$T1
-	xor	$a0,$T1
-	shr	\$$sigma0[2],$a0
-
-	ror	\$$sigma0[0],$T1
-	xor	$T1,$a0			# sigma0(X[(i+1)&0xf])
-	mov	`$SZ*(($i+9)&0xf)`(%rsp),$T1
-
-	ror	\$`$sigma1[1]-$sigma1[0]`,$a2
-	xor	$a1,$a2
-	shr	\$$sigma1[2],$a1
-
-	ror	\$$sigma1[0],$a2
-	add	$a0,$T1
-	xor	$a2,$a1			# sigma1(X[(i+14)&0xf])
-
-	add	`$SZ*($i&0xf)`(%rsp),$T1
-	mov	$e,$a0
-	add	$a1,$T1
-	mov	$a,$a1
-___
-	&ROUND_00_15(@_);
-}
-
-$code=<<___;
-.text
-
-.globl	$func
-.type	$func,\@function,4
-.align	16
-$func:
-	push	%rbx
-	push	%rbp
-	push	%r12
-	push	%r13
-	push	%r14
-	push	%r15
-	mov	%rsp,%r11		# copy %rsp
-	shl	\$4,%rdx		# num*16
-	sub	\$$framesz,%rsp
-	lea	($inp,%rdx,$SZ),%rdx	# inp+num*16*$SZ
-	and	\$-64,%rsp		# align stack frame
-	mov	$ctx,$_ctx		# save ctx, 1st arg
-	mov	$inp,$_inp		# save inp, 2nd arh
-	mov	%rdx,$_end		# save end pointer, "3rd" arg
-	mov	%r11,$_rsp		# save copy of %rsp
-.Lprologue:
-
-	lea	$TABLE(%rip),$Tbl
-
-	mov	$SZ*0($ctx),$A
-	mov	$SZ*1($ctx),$B
-	mov	$SZ*2($ctx),$C
-	mov	$SZ*3($ctx),$D
-	mov	$SZ*4($ctx),$E
-	mov	$SZ*5($ctx),$F
-	mov	$SZ*6($ctx),$G
-	mov	$SZ*7($ctx),$H
-	jmp	.Lloop
-
-.align	16
-.Lloop:
-	xor	$round,$round
-___
-	for($i=0;$i<16;$i++) {
-		$code.="	mov	$SZ*$i($inp),$T1\n";
-		$code.="	mov	@ROT[4],$a0\n";
-		$code.="	mov	@ROT[0],$a1\n";
-		$code.="	bswap	$T1\n";
-		&ROUND_00_15($i,@ROT);
-		unshift(@ROT,pop(@ROT));
-	}
-$code.=<<___;
-	jmp	.Lrounds_16_xx
-.align	16
-.Lrounds_16_xx:
-___
-	for(;$i<32;$i++) {
-		&ROUND_16_XX($i,@ROT);
-		unshift(@ROT,pop(@ROT));
-	}
-
-$code.=<<___;
-	cmp	\$$rounds,$round
-	jb	.Lrounds_16_xx
-
-	mov	$_ctx,$ctx
-	lea	16*$SZ($inp),$inp
-
-	add	$SZ*0($ctx),$A
-	add	$SZ*1($ctx),$B
-	add	$SZ*2($ctx),$C
-	add	$SZ*3($ctx),$D
-	add	$SZ*4($ctx),$E
-	add	$SZ*5($ctx),$F
-	add	$SZ*6($ctx),$G
-	add	$SZ*7($ctx),$H
-
-	cmp	$_end,$inp
-
-	mov	$A,$SZ*0($ctx)
-	mov	$B,$SZ*1($ctx)
-	mov	$C,$SZ*2($ctx)
-	mov	$D,$SZ*3($ctx)
-	mov	$E,$SZ*4($ctx)
-	mov	$F,$SZ*5($ctx)
-	mov	$G,$SZ*6($ctx)
-	mov	$H,$SZ*7($ctx)
-	jb	.Lloop
-
-	mov	$_rsp,%rsi
-	mov	(%rsi),%r15
-	mov	8(%rsi),%r14
-	mov	16(%rsi),%r13
-	mov	24(%rsi),%r12
-	mov	32(%rsi),%rbp
-	mov	40(%rsi),%rbx
-	lea	48(%rsi),%rsp
-.Lepilogue:
-	ret
-.size	$func,.-$func
-___
-
-if ($SZ==4) {
-$code.=<<___;
-.align	64
-.type	$TABLE,\@object
-$TABLE:
-	.long	0x428a2f98,0x71374491,0xb5c0fbcf,0xe9b5dba5
-	.long	0x3956c25b,0x59f111f1,0x923f82a4,0xab1c5ed5
-	.long	0xd807aa98,0x12835b01,0x243185be,0x550c7dc3
-	.long	0x72be5d74,0x80deb1fe,0x9bdc06a7,0xc19bf174
-	.long	0xe49b69c1,0xefbe4786,0x0fc19dc6,0x240ca1cc
-	.long	0x2de92c6f,0x4a7484aa,0x5cb0a9dc,0x76f988da
-	.long	0x983e5152,0xa831c66d,0xb00327c8,0xbf597fc7
-	.long	0xc6e00bf3,0xd5a79147,0x06ca6351,0x14292967
-	.long	0x27b70a85,0x2e1b2138,0x4d2c6dfc,0x53380d13
-	.long	0x650a7354,0x766a0abb,0x81c2c92e,0x92722c85
-	.long	0xa2bfe8a1,0xa81a664b,0xc24b8b70,0xc76c51a3
-	.long	0xd192e819,0xd6990624,0xf40e3585,0x106aa070
-	.long	0x19a4c116,0x1e376c08,0x2748774c,0x34b0bcb5
-	.long	0x391c0cb3,0x4ed8aa4a,0x5b9cca4f,0x682e6ff3
-	.long	0x748f82ee,0x78a5636f,0x84c87814,0x8cc70208
-	.long	0x90befffa,0xa4506ceb,0xbef9a3f7,0xc67178f2
-___
-} else {
-$code.=<<___;
-.align	64
-.type	$TABLE,\@object
-$TABLE:
-	.quad	0x428a2f98d728ae22,0x7137449123ef65cd
-	.quad	0xb5c0fbcfec4d3b2f,0xe9b5dba58189dbbc
-	.quad	0x3956c25bf348b538,0x59f111f1b605d019
-	.quad	0x923f82a4af194f9b,0xab1c5ed5da6d8118
-	.quad	0xd807aa98a3030242,0x12835b0145706fbe
-	.quad	0x243185be4ee4b28c,0x550c7dc3d5ffb4e2
-	.quad	0x72be5d74f27b896f,0x80deb1fe3b1696b1
-	.quad	0x9bdc06a725c71235,0xc19bf174cf692694
-	.quad	0xe49b69c19ef14ad2,0xefbe4786384f25e3
-	.quad	0x0fc19dc68b8cd5b5,0x240ca1cc77ac9c65
-	.quad	0x2de92c6f592b0275,0x4a7484aa6ea6e483
-	.quad	0x5cb0a9dcbd41fbd4,0x76f988da831153b5
-	.quad	0x983e5152ee66dfab,0xa831c66d2db43210
-	.quad	0xb00327c898fb213f,0xbf597fc7beef0ee4
-	.quad	0xc6e00bf33da88fc2,0xd5a79147930aa725
-	.quad	0x06ca6351e003826f,0x142929670a0e6e70
-	.quad	0x27b70a8546d22ffc,0x2e1b21385c26c926
-	.quad	0x4d2c6dfc5ac42aed,0x53380d139d95b3df
-	.quad	0x650a73548baf63de,0x766a0abb3c77b2a8
-	.quad	0x81c2c92e47edaee6,0x92722c851482353b
-	.quad	0xa2bfe8a14cf10364,0xa81a664bbc423001
-	.quad	0xc24b8b70d0f89791,0xc76c51a30654be30
-	.quad	0xd192e819d6ef5218,0xd69906245565a910
-	.quad	0xf40e35855771202a,0x106aa07032bbd1b8
-	.quad	0x19a4c116b8d2d0c8,0x1e376c085141ab53
-	.quad	0x2748774cdf8eeb99,0x34b0bcb5e19b48a8
-	.quad	0x391c0cb3c5c95a63,0x4ed8aa4ae3418acb
-	.quad	0x5b9cca4f7763e373,0x682e6ff3d6b2b8a3
-	.quad	0x748f82ee5defb2fc,0x78a5636f43172f60
-	.quad	0x84c87814a1f0ab72,0x8cc702081a6439ec
-	.quad	0x90befffa23631e28,0xa4506cebde82bde9
-	.quad	0xbef9a3f7b2c67915,0xc67178f2e372532b
-	.quad	0xca273eceea26619c,0xd186b8c721c0c207
-	.quad	0xeada7dd6cde0eb1e,0xf57d4f7fee6ed178
-	.quad	0x06f067aa72176fba,0x0a637dc5a2c898a6
-	.quad	0x113f9804bef90dae,0x1b710b35131c471b
-	.quad	0x28db77f523047d84,0x32caab7b40c72493
-	.quad	0x3c9ebe0a15c9bebc,0x431d67c49c100d4c
-	.quad	0x4cc5d4becb3e42b6,0x597f299cfc657e2a
-	.quad	0x5fcb6fab3ad6faec,0x6c44198c4a475817
-___
-}
-
-# EXCEPTION_DISPOSITION handler (EXCEPTION_RECORD *rec,ULONG64 frame,
-#		CONTEXT *context,DISPATCHER_CONTEXT *disp)
-if ($win64) {
-$rec="%rcx";
-$frame="%rdx";
-$context="%r8";
-$disp="%r9";
-
-$code.=<<___;
-.extern	__imp_RtlVirtualUnwind
-.type	se_handler,\@abi-omnipotent
-.align	16
-se_handler:
-	push	%rsi
-	push	%rdi
-	push	%rbx
-	push	%rbp
-	push	%r12
-	push	%r13
-	push	%r14
-	push	%r15
-	pushfq
-	sub	\$64,%rsp
-
-	mov	120($context),%rax	# pull context->Rax
-	mov	248($context),%rbx	# pull context->Rip
-
-	lea	.Lprologue(%rip),%r10
-	cmp	%r10,%rbx		# context->Rip<.Lprologue
-	jb	.Lin_prologue
-
-	mov	152($context),%rax	# pull context->Rsp
-
-	lea	.Lepilogue(%rip),%r10
-	cmp	%r10,%rbx		# context->Rip>=.Lepilogue
-	jae	.Lin_prologue
-
-	mov	16*$SZ+3*8(%rax),%rax	# pull $_rsp
-	lea	48(%rax),%rax
-
-	mov	-8(%rax),%rbx
-	mov	-16(%rax),%rbp
-	mov	-24(%rax),%r12
-	mov	-32(%rax),%r13
-	mov	-40(%rax),%r14
-	mov	-48(%rax),%r15
-	mov	%rbx,144($context)	# restore context->Rbx
-	mov	%rbp,160($context)	# restore context->Rbp
-	mov	%r12,216($context)	# restore context->R12
-	mov	%r13,224($context)	# restore context->R13
-	mov	%r14,232($context)	# restore context->R14
-	mov	%r15,240($context)	# restore context->R15
-
-.Lin_prologue:
-	mov	8(%rax),%rdi
-	mov	16(%rax),%rsi
-	mov	%rax,152($context)	# restore context->Rsp
-	mov	%rsi,168($context)	# restore context->Rsi
-	mov	%rdi,176($context)	# restore context->Rdi
-
-	mov	40($disp),%rdi		# disp->ContextRecord
-	mov	$context,%rsi		# context
-	mov	\$154,%ecx		# sizeof(CONTEXT)
-	.long	0xa548f3fc		# cld; rep movsq
-
-	mov	$disp,%rsi
-	xor	%rcx,%rcx		# arg1, UNW_FLAG_NHANDLER
-	mov	8(%rsi),%rdx		# arg2, disp->ImageBase
-	mov	0(%rsi),%r8		# arg3, disp->ControlPc
-	mov	16(%rsi),%r9		# arg4, disp->FunctionEntry
-	mov	40(%rsi),%r10		# disp->ContextRecord
-	lea	56(%rsi),%r11		# &disp->HandlerData
-	lea	24(%rsi),%r12		# &disp->EstablisherFrame
-	mov	%r10,32(%rsp)		# arg5
-	mov	%r11,40(%rsp)		# arg6
-	mov	%r12,48(%rsp)		# arg7
-	mov	%rcx,56(%rsp)		# arg8, (NULL)
-	call	*__imp_RtlVirtualUnwind(%rip)
-
-	mov	\$1,%eax		# ExceptionContinueSearch
-	add	\$64,%rsp
-	popfq
-	pop	%r15
-	pop	%r14
-	pop	%r13
-	pop	%r12
-	pop	%rbp
-	pop	%rbx
-	pop	%rdi
-	pop	%rsi
-	ret
-.size	se_handler,.-se_handler
-
-.section	.pdata
-.align	4
-	.rva	.LSEH_begin_$func
-	.rva	.LSEH_end_$func
-	.rva	.LSEH_info_$func
-
-.section	.xdata
-.align	8
-.LSEH_info_$func:
-	.byte	9,0,0,0
-	.rva	se_handler
-___
-}
-
-$code =~ s/\`([^\`]*)\`/eval $1/gem;
-print $code;
-close STDOUT;