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32be631ca1
If one of the perlasm xlate drivers crashes, OpenSSL's build will currently swallow the error and silently truncate the output to however far the driver got. This will hopefully fail to build, but better to check such things. Handle this by checking for errors when closing STDOUT (which is a pipe to the xlate driver). Reviewed-by: Richard Levitte <levitte@openssl.org> Reviewed-by: Tim Hudson <tjh@openssl.org> Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org> (Merged from https://github.com/openssl/openssl/pull/10883)
200 lines
4.7 KiB
Raku
200 lines
4.7 KiB
Raku
#! /usr/bin/env perl
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# Copyright 2012-2016 The OpenSSL Project Authors. All Rights Reserved.
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#
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# Licensed under the Apache License 2.0 (the "License"). You may not use
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# this file except in compliance with the License. You can obtain a copy
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# in the file LICENSE in the source distribution or at
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# https://www.openssl.org/source/license.html
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#
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# ====================================================================
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# Written by Andy Polyakov <appro@openssl.org> for the OpenSSL
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# project. The module is, however, dual licensed under OpenSSL and
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# CRYPTOGAMS licenses depending on where you obtain it. For further
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# details see http://www.openssl.org/~appro/cryptogams/.
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# ====================================================================
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#
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# October 2012
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#
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# The module implements bn_GF2m_mul_2x2 polynomial multiplication used
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# in bn_gf2m.c. It's kind of low-hanging mechanical port from C for
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# the time being... Except that it has two code paths: one suitable
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# for all SPARCv9 processors and one for VIS3-capable ones. Former
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# delivers ~25-45% more, more for longer keys, heaviest DH and DSA
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# verify operations on venerable UltraSPARC II. On T4 VIS3 code is
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# ~100-230% faster than gcc-generated code and ~35-90% faster than
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# the pure SPARCv9 code path.
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$output = pop and open STDOUT,">$output";
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$locals=16*8;
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$tab="%l0";
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@T=("%g2","%g3");
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@i=("%g4","%g5");
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($a1,$a2,$a4,$a8,$a12,$a48)=map("%o$_",(0..5));
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($lo,$hi,$b)=("%g1",$a8,"%o7"); $a=$lo;
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$code.=<<___;
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#include <sparc_arch.h>
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#ifdef __arch64__
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.register %g2,#scratch
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.register %g3,#scratch
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#endif
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#ifdef __PIC__
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SPARC_PIC_THUNK(%g1)
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#endif
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.globl bn_GF2m_mul_2x2
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.align 16
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bn_GF2m_mul_2x2:
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SPARC_LOAD_ADDRESS_LEAF(OPENSSL_sparcv9cap_P,%g1,%g5)
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ld [%g1+0],%g1 ! OPENSSL_sparcv9cap_P[0]
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andcc %g1, SPARCV9_VIS3, %g0
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bz,pn %icc,.Lsoftware
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nop
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sllx %o1, 32, %o1
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sllx %o3, 32, %o3
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or %o2, %o1, %o1
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or %o4, %o3, %o3
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.word 0x95b262ab ! xmulx %o1, %o3, %o2
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.word 0x99b262cb ! xmulxhi %o1, %o3, %o4
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srlx %o2, 32, %o1 ! 13 cycles later
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st %o2, [%o0+0]
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st %o1, [%o0+4]
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srlx %o4, 32, %o3
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st %o4, [%o0+8]
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retl
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st %o3, [%o0+12]
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.align 16
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.Lsoftware:
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save %sp,-STACK_FRAME-$locals,%sp
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sllx %i1,32,$a
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mov -1,$a12
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sllx %i3,32,$b
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or %i2,$a,$a
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srlx $a12,1,$a48 ! 0x7fff...
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or %i4,$b,$b
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srlx $a12,2,$a12 ! 0x3fff...
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add %sp,STACK_BIAS+STACK_FRAME,$tab
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sllx $a,2,$a4
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mov $a,$a1
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sllx $a,1,$a2
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srax $a4,63,@i[1] ! broadcast 61st bit
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and $a48,$a4,$a4 ! (a<<2)&0x7fff...
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srlx $a48,2,$a48
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srax $a2,63,@i[0] ! broadcast 62nd bit
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and $a12,$a2,$a2 ! (a<<1)&0x3fff...
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srax $a1,63,$lo ! broadcast 63rd bit
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and $a48,$a1,$a1 ! (a<<0)&0x1fff...
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sllx $a1,3,$a8
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and $b,$lo,$lo
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and $b,@i[0],@i[0]
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and $b,@i[1],@i[1]
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stx %g0,[$tab+0*8] ! tab[0]=0
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xor $a1,$a2,$a12
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stx $a1,[$tab+1*8] ! tab[1]=a1
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stx $a2,[$tab+2*8] ! tab[2]=a2
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xor $a4,$a8,$a48
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stx $a12,[$tab+3*8] ! tab[3]=a1^a2
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xor $a4,$a1,$a1
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stx $a4,[$tab+4*8] ! tab[4]=a4
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xor $a4,$a2,$a2
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stx $a1,[$tab+5*8] ! tab[5]=a1^a4
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xor $a4,$a12,$a12
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stx $a2,[$tab+6*8] ! tab[6]=a2^a4
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xor $a48,$a1,$a1
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stx $a12,[$tab+7*8] ! tab[7]=a1^a2^a4
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xor $a48,$a2,$a2
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stx $a8,[$tab+8*8] ! tab[8]=a8
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xor $a48,$a12,$a12
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stx $a1,[$tab+9*8] ! tab[9]=a1^a8
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xor $a4,$a1,$a1
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stx $a2,[$tab+10*8] ! tab[10]=a2^a8
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xor $a4,$a2,$a2
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stx $a12,[$tab+11*8] ! tab[11]=a1^a2^a8
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xor $a4,$a12,$a12
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stx $a48,[$tab+12*8] ! tab[12]=a4^a8
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srlx $lo,1,$hi
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stx $a1,[$tab+13*8] ! tab[13]=a1^a4^a8
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sllx $lo,63,$lo
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stx $a2,[$tab+14*8] ! tab[14]=a2^a4^a8
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srlx @i[0],2,@T[0]
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stx $a12,[$tab+15*8] ! tab[15]=a1^a2^a4^a8
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sllx @i[0],62,$a1
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sllx $b,3,@i[0]
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srlx @i[1],3,@T[1]
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and @i[0],`0xf<<3`,@i[0]
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sllx @i[1],61,$a2
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ldx [$tab+@i[0]],@i[0]
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srlx $b,4-3,@i[1]
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xor @T[0],$hi,$hi
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and @i[1],`0xf<<3`,@i[1]
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xor $a1,$lo,$lo
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ldx [$tab+@i[1]],@i[1]
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xor @T[1],$hi,$hi
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xor @i[0],$lo,$lo
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srlx $b,8-3,@i[0]
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xor $a2,$lo,$lo
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and @i[0],`0xf<<3`,@i[0]
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___
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for($n=1;$n<14;$n++) {
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$code.=<<___;
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sllx @i[1],`$n*4`,@T[0]
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ldx [$tab+@i[0]],@i[0]
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srlx @i[1],`64-$n*4`,@T[1]
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xor @T[0],$lo,$lo
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srlx $b,`($n+2)*4`-3,@i[1]
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xor @T[1],$hi,$hi
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and @i[1],`0xf<<3`,@i[1]
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___
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push(@i,shift(@i)); push(@T,shift(@T));
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}
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$code.=<<___;
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sllx @i[1],`$n*4`,@T[0]
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ldx [$tab+@i[0]],@i[0]
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srlx @i[1],`64-$n*4`,@T[1]
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xor @T[0],$lo,$lo
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sllx @i[0],`($n+1)*4`,@T[0]
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xor @T[1],$hi,$hi
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srlx @i[0],`64-($n+1)*4`,@T[1]
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xor @T[0],$lo,$lo
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xor @T[1],$hi,$hi
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srlx $lo,32,%i1
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st $lo,[%i0+0]
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st %i1,[%i0+4]
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srlx $hi,32,%i2
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st $hi,[%i0+8]
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st %i2,[%i0+12]
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ret
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restore
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.type bn_GF2m_mul_2x2,#function
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.size bn_GF2m_mul_2x2,.-bn_GF2m_mul_2x2
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.asciz "GF(2^m) Multiplication for SPARCv9, CRYPTOGAMS by <appro\@openssl.org>"
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.align 4
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___
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$code =~ s/\`([^\`]*)\`/eval($1)/gem;
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print $code;
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close STDOUT or die "error closing STDOUT";
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