Avoid creating an illegal pointer

[openssl.git] / crypto / bn / asm / alpha-mont.pl

diff --git a/crypto/bn/asm/alpha-mont.pl b/crypto/bn/asm/alpha-mont.pl
index f7e0ca1646cd3caad91ec442aee62fc3031bd039..1d68d6d07215e28d748d3598260d629b6886b64a 100644 (file)
--- a/crypto/bn/asm/alpha-mont.pl
+++ b/crypto/bn/asm/alpha-mont.pl
@@ -1,4 +1,11 @@
-#!/usr/bin/env perl
+#! /usr/bin/env perl
+# Copyright 2006-2016 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
+
 #
 # ====================================================================
 # Written by Andy Polyakov <appro@fy.chalmers.se> for the OpenSSL
@@ -15,6 +22,9 @@
 # I.e. if you compare 1GHz 21264 and 2GHz Opteron, you'll observe ~2x
 # difference.
 
+$output=pop;
+open STDOUT,">$output";
+
 # int bn_mul_mont(
 $rp="a0";      # BN_ULONG *rp,
 $ap="a1";      # const BN_ULONG *ap,
@@ -41,8 +51,12 @@ $j="s4";
 $m1="s5";
 
 $code=<<___;
+#ifdef __linux__
+#include <asm/regdef.h>
+#else
 #include <asm.h>
 #include <regdef.h>
+#endif
 
 .text
 
@@ -76,7 +90,7 @@ bn_mul_mont:
        ldq     $aj,8($ap)
        subq    sp,AT,sp
        ldq     $bi,0($bp)      # bp[0]
-       mov     -4096,AT
+       lda     AT,-4096(zero)  # mov   -4096,AT
        ldq     $n0,0($n0)
        and     sp,AT,sp
 
@@ -106,9 +120,9 @@ bn_mul_mont:
 .align 4
 .L1st:
        .set    noreorder
-       ldq     $aj,($aj)
+       ldq     $aj,0($aj)
        addl    $j,1,$j
-       ldq     $nj,($nj)
+       ldq     $nj,0($nj)
        lda     $tp,8($tp)
 
        addq    $alo,$hi0,$lo0
@@ -159,12 +173,12 @@ bn_mul_mont:
 .align 4
 .Louter:
        s8addq  $i,$bp,$bi
-       ldq     $hi0,($ap)
+       ldq     $hi0,0($ap)
        ldq     $aj,8($ap)
-       ldq     $bi,($bi)
-       ldq     $hi1,($np)
+       ldq     $bi,0($bi)
+       ldq     $hi1,0($np)
        ldq     $nj,8($np)
-       ldq     $tj,(sp)
+       ldq     $tj,0(sp)
 
        mulq    $hi0,$bi,$lo0
        umulh   $hi0,$bi,$hi0
@@ -195,10 +209,10 @@ bn_mul_mont:
        .set    noreorder
        ldq     $tj,8($tp)      #L0
        nop                     #U1
-       ldq     $aj,($aj)       #L1
+       ldq     $aj,0($aj)      #L1
        s8addq  $j,$np,$nj      #U0
 
-       ldq     $nj,($nj)       #L0
+       ldq     $nj,0($nj)      #L0
        nop                     #U1
        addq    $alo,$hi0,$lo0  #L1
        lda     $tp,8($tp)
@@ -247,7 +261,7 @@ bn_mul_mont:
        addq    $hi1,v0,$hi1
 
        addq    $hi1,$hi0,$lo1
-       stq     $j,($tp)
+       stq     $j,0($tp)
        cmpult  $lo1,$hi0,$hi1
        addq    $lo1,$tj,$lo1
        cmpult  $lo1,$tj,AT
@@ -265,8 +279,8 @@ bn_mul_mont:
        mov     0,$hi0          # clear borrow bit
 
 .align 4
-.Lsub: ldq     $lo0,($tp)
-       ldq     $lo1,($np)
+.Lsub: ldq     $lo0,0($tp)
+       ldq     $lo1,0($np)
        lda     $tp,8($tp)
        lda     $np,8($np)
        subq    $lo0,$lo1,$lo1  # tp[i]-np[i]
@@ -274,7 +288,7 @@ bn_mul_mont:
        subq    $lo1,$hi0,$lo0
        cmpult  $lo1,$lo0,$hi0
        or      $hi0,AT,$hi0
-       stq     $lo0,($rp)
+       stq     $lo0,0($rp)
        cmpult  $tp,$tj,v0
        lda     $rp,8($rp)
        bne     v0,.Lsub
@@ -288,7 +302,7 @@ bn_mul_mont:
        bis     $bp,$ap,$ap     # ap=borrow?tp:rp
 
 .align 4
-.Lcopy:        ldq     $aj,($ap)       # copy or in-place refresh
+.Lcopy:        ldq     $aj,0($ap)      # copy or in-place refresh
        lda     $tp,8($tp)
        lda     $rp,8($rp)
        lda     $ap,8($ap)
@@ -309,8 +323,8 @@ bn_mul_mont:
        lda     sp,48(sp)
        ret     (ra)
 .end   bn_mul_mont
-.rdata
-.asciiz        "Montgomery Multiplication for Alpha, CRYPTOGAMS by <appro\@openssl.org>"
+.ascii "Montgomery Multiplication for Alpha, CRYPTOGAMS by <appro\@openssl.org>"
+.align 2
 ___
 
 print $code;