X-Git-Url: https://git.openssl.org/?a=blobdiff_plain;f=crypto%2Falphacpuid.pl;h=6c7fd4c9dd3dd1dbd19a9c93141f44e6e6295716;hb=4e585e720195788c9546a9ce71d63dafdfd2aaf1;hp=c9474ff497521ed7e42c149ce73d80ba969b5c7f;hpb=f8927c89d00f42c4aee239cd8224fc4c7a84bd99;p=openssl.git

diff --git a/crypto/alphacpuid.pl b/crypto/alphacpuid.pl
index c9474ff497..6c7fd4c9dd 100644
--- a/crypto/alphacpuid.pl
+++ b/crypto/alphacpuid.pl
@@ -1,4 +1,15 @@
-#!/usr/bin/env perl
+#! /usr/bin/env perl
+# Copyright 2010-2016 The OpenSSL Project Authors. All Rights Reserved.
+#
+# Licensed under the OpenSSL license (the "License").  You may not use
+# this file except in compliance with the License.  You can obtain a copy
+# in the file LICENSE in the source distribution or at
+# https://www.openssl.org/source/license.html
+
+
+$output = pop;
+open STDOUT,">$output";
+
 print <<'___';
 .text
 
@@ -99,19 +110,19 @@ OPENSSL_cleanse:
 	beq	$0,.Laligned
 
 .Little:
+	subq	$0,8,$0
 	ldq_u	$1,0($16)
 	mov	$16,$2
 .Lalign:
 	mskbl	$1,$16,$1
 	lda	$16,1($16)
 	subq	$17,1,$17
-	subq	$0,1,$0
+	addq	$0,1,$0
 	beq	$17,.Lout
 	bne	$0,.Lalign
 .Lout:	stq_u	$1,0($2)
 	beq	$17,.Ldone
 	bic	$17,7,$at
-	mov	$17,$0
 	beq	$at,.Little
 
 .Laligned:
@@ -120,9 +131,127 @@ OPENSSL_cleanse:
 	lda	$16,8($16)
 	bic	$17,7,$at
 	bne	$at,.Laligned
-	beq	$17,.Ldone
-	mov	$17,$0
-	br	.Little
+	bne	$17,.Little
 .Ldone: ret	($26)
 .end	OPENSSL_cleanse
+
+.globl	CRYPTO_memcmp
+.ent	CRYPTO_memcmp
+CRYPTO_memcmp:
+	.frame	$30,0,$26
+	.prologue 0
+	xor	$0,$0,$0
+	beq	$18,.Lno_data
+
+	xor	$1,$1,$1
+	nop
+.Loop_cmp:
+	ldq_u	$2,0($16)
+	subq	$18,1,$18
+	ldq_u	$3,0($17)
+	extbl	$2,$16,$2
+	lda	$16,1($16)
+	extbl	$3,$17,$3
+	lda	$17,1($17)
+	xor	$3,$2,$2
+	or	$2,$0,$0
+	bne	$18,.Loop_cmp
+
+	subq	$31,$0,$0
+	srl	$0,63,$0
+.Lno_data:
+	ret	($26)
+.end	CRYPTO_memcmp
 ___
+{
+my ($out,$cnt,$max)=("\$16","\$17","\$18");
+my ($tick,$lasttick)=("\$19","\$20");
+my ($diff,$lastdiff)=("\$21","\$22");
+my ($v0,$ra,$sp,$zero)=("\$0","\$26","\$30","\$31");
+
+print <<___;
+.globl	OPENSSL_instrument_bus
+.ent	OPENSSL_instrument_bus
+OPENSSL_instrument_bus:
+	.frame	$sp,0,$ra
+	.prologue 0
+	mov	$cnt,$v0
+
+	rpcc	$lasttick
+	mov	0,$diff
+
+	ecb	($out)
+	ldl_l	$tick,0($out)
+	addl	$diff,$tick,$tick
+	mov	$tick,$diff
+	stl_c	$tick,0($out)
+	stl	$diff,0($out)
+
+.Loop:	rpcc	$tick
+	subq	$tick,$lasttick,$diff
+	mov	$tick,$lasttick
+
+	ecb	($out)
+	ldl_l	$tick,0($out)
+	addl	$diff,$tick,$tick
+	mov	$tick,$diff
+	stl_c	$tick,0($out)
+	stl	$diff,0($out)
+
+	subl	$cnt,1,$cnt
+	lda	$out,4($out)
+	bne	$cnt,.Loop
+
+	ret	($ra)
+.end	OPENSSL_instrument_bus
+
+.globl	OPENSSL_instrument_bus2
+.ent	OPENSSL_instrument_bus2
+OPENSSL_instrument_bus2:
+	.frame	$sp,0,$ra
+	.prologue 0
+	mov	$cnt,$v0
+
+	rpcc	$lasttick
+	mov	0,$diff
+
+	ecb	($out)
+	ldl_l	$tick,0($out)
+	addl	$diff,$tick,$tick
+	mov	$tick,$diff
+	stl_c	$tick,0($out)
+	stl	$diff,0($out)
+
+	rpcc	$tick
+	subq	$tick,$lasttick,$diff
+	mov	$tick,$lasttick
+	mov	$diff,$lastdiff
+.Loop2:
+	ecb	($out)
+	ldl_l	$tick,0($out)
+	addl	$diff,$tick,$tick
+	mov	$tick,$diff
+	stl_c	$tick,0($out)
+	stl	$diff,0($out)
+
+	subl	$max,1,$max
+	beq	$max,.Ldone2
+
+	rpcc	$tick
+	subq	$tick,$lasttick,$diff
+	mov	$tick,$lasttick
+	subq	$lastdiff,$diff,$tick
+	mov	$diff,$lastdiff
+	cmovne	$tick,1,$tick
+	subl	$cnt,$tick,$cnt
+	s4addq	$tick,$out,$out
+	bne	$cnt,.Loop2
+
+.Ldone2:
+	subl	$v0,$cnt,$v0
+	ret	($ra)
+.end	OPENSSL_instrument_bus2
+___
+}
+
+close STDOUT;