diff options
Diffstat (limited to 'openssl/crypto/sha/asm/sha512-ppc.pl')
| -rw-r--r-- | openssl/crypto/sha/asm/sha512-ppc.pl | 114 |
1 files changed, 56 insertions, 58 deletions
diff --git a/openssl/crypto/sha/asm/sha512-ppc.pl b/openssl/crypto/sha/asm/sha512-ppc.pl index 768a6a6fa..6b44a68e5 100644 --- a/openssl/crypto/sha/asm/sha512-ppc.pl +++ b/openssl/crypto/sha/asm/sha512-ppc.pl @@ -40,6 +40,7 @@ $output =shift; if ($flavour =~ /64/) { $SIZE_T=8; + $LRSAVE=2*$SIZE_T; $STU="stdu"; $UCMP="cmpld"; $SHL="sldi"; @@ -47,6 +48,7 @@ if ($flavour =~ /64/) { $PUSH="std"; } elsif ($flavour =~ /32/) { $SIZE_T=4; + $LRSAVE=$SIZE_T; $STU="stwu"; $UCMP="cmplw"; $SHL="slwi"; @@ -87,7 +89,8 @@ if ($output =~ /512/) { $SHR="srwi"; } -$FRAME=32*$SIZE_T; +$FRAME=32*$SIZE_T+16*$SZ; +$LOCALS=6*$SIZE_T; $sp ="r1"; $toc="r2"; @@ -179,13 +182,12 @@ $code=<<___; .globl $func .align 6 $func: + $STU $sp,-$FRAME($sp) mflr r0 - $STU $sp,`-($FRAME+16*$SZ)`($sp) $SHL $num,$num,`log(16*$SZ)/log(2)` $PUSH $ctx,`$FRAME-$SIZE_T*22`($sp) - $PUSH r0,`$FRAME-$SIZE_T*21`($sp) $PUSH $toc,`$FRAME-$SIZE_T*20`($sp) $PUSH r13,`$FRAME-$SIZE_T*19`($sp) $PUSH r14,`$FRAME-$SIZE_T*18`($sp) @@ -206,6 +208,7 @@ $func: $PUSH r29,`$FRAME-$SIZE_T*3`($sp) $PUSH r30,`$FRAME-$SIZE_T*2`($sp) $PUSH r31,`$FRAME-$SIZE_T*1`($sp) + $PUSH r0,`$FRAME+$LRSAVE`($sp) $LD $A,`0*$SZ`($ctx) mr $inp,r4 ; incarnate $inp @@ -217,7 +220,7 @@ $func: $LD $G,`6*$SZ`($ctx) $LD $H,`7*$SZ`($ctx) - b LPICmeup + bl LPICmeup LPICedup: andi. r0,$inp,3 bne Lunaligned @@ -226,40 +229,14 @@ Laligned: $PUSH $num,`$FRAME-$SIZE_T*24`($sp) ; end pointer $PUSH $inp,`$FRAME-$SIZE_T*23`($sp) ; inp pointer bl Lsha2_block_private -Ldone: - $POP r0,`$FRAME-$SIZE_T*21`($sp) - $POP $toc,`$FRAME-$SIZE_T*20`($sp) - $POP r13,`$FRAME-$SIZE_T*19`($sp) - $POP r14,`$FRAME-$SIZE_T*18`($sp) - $POP r15,`$FRAME-$SIZE_T*17`($sp) - $POP r16,`$FRAME-$SIZE_T*16`($sp) - $POP r17,`$FRAME-$SIZE_T*15`($sp) - $POP r18,`$FRAME-$SIZE_T*14`($sp) - $POP r19,`$FRAME-$SIZE_T*13`($sp) - $POP r20,`$FRAME-$SIZE_T*12`($sp) - $POP r21,`$FRAME-$SIZE_T*11`($sp) - $POP r22,`$FRAME-$SIZE_T*10`($sp) - $POP r23,`$FRAME-$SIZE_T*9`($sp) - $POP r24,`$FRAME-$SIZE_T*8`($sp) - $POP r25,`$FRAME-$SIZE_T*7`($sp) - $POP r26,`$FRAME-$SIZE_T*6`($sp) - $POP r27,`$FRAME-$SIZE_T*5`($sp) - $POP r28,`$FRAME-$SIZE_T*4`($sp) - $POP r29,`$FRAME-$SIZE_T*3`($sp) - $POP r30,`$FRAME-$SIZE_T*2`($sp) - $POP r31,`$FRAME-$SIZE_T*1`($sp) - mtlr r0 - addi $sp,$sp,`$FRAME+16*$SZ` - blr -___ + b Ldone -# PowerPC specification allows an implementation to be ill-behaved -# upon unaligned access which crosses page boundary. "Better safe -# than sorry" principle makes me treat it specially. But I don't -# look for particular offending word, but rather for the input -# block which crosses the boundary. Once found that block is aligned -# and hashed separately... -$code.=<<___; +; PowerPC specification allows an implementation to be ill-behaved +; upon unaligned access which crosses page boundary. "Better safe +; than sorry" principle makes me treat it specially. But I don't +; look for particular offending word, but rather for the input +; block which crosses the boundary. Once found that block is aligned +; and hashed separately... .align 4 Lunaligned: subfic $t1,$inp,4096 @@ -278,7 +255,7 @@ Lunaligned: Lcross_page: li $t1,`16*$SZ/4` mtctr $t1 - addi r20,$sp,$FRAME ; aligned spot below the frame + addi r20,$sp,$LOCALS ; aligned spot below the frame Lmemcpy: lbz r16,0($inp) lbz r17,1($inp) @@ -293,8 +270,8 @@ Lmemcpy: bdnz Lmemcpy $PUSH $inp,`$FRAME-$SIZE_T*26`($sp) ; save real inp - addi $t1,$sp,`$FRAME+16*$SZ` ; fictitious end pointer - addi $inp,$sp,$FRAME ; fictitious inp pointer + addi $t1,$sp,`$LOCALS+16*$SZ` ; fictitious end pointer + addi $inp,$sp,$LOCALS ; fictitious inp pointer $PUSH $num,`$FRAME-$SIZE_T*25`($sp) ; save real num $PUSH $t1,`$FRAME-$SIZE_T*24`($sp) ; end pointer $PUSH $inp,`$FRAME-$SIZE_T*23`($sp) ; inp pointer @@ -303,10 +280,36 @@ Lmemcpy: $POP $num,`$FRAME-$SIZE_T*25`($sp) ; restore real num addic. $num,$num,`-16*$SZ` ; num-- bne- Lunaligned - b Ldone -___ -$code.=<<___; +Ldone: + $POP r0,`$FRAME+$LRSAVE`($sp) + $POP $toc,`$FRAME-$SIZE_T*20`($sp) + $POP r13,`$FRAME-$SIZE_T*19`($sp) + $POP r14,`$FRAME-$SIZE_T*18`($sp) + $POP r15,`$FRAME-$SIZE_T*17`($sp) + $POP r16,`$FRAME-$SIZE_T*16`($sp) + $POP r17,`$FRAME-$SIZE_T*15`($sp) + $POP r18,`$FRAME-$SIZE_T*14`($sp) + $POP r19,`$FRAME-$SIZE_T*13`($sp) + $POP r20,`$FRAME-$SIZE_T*12`($sp) + $POP r21,`$FRAME-$SIZE_T*11`($sp) + $POP r22,`$FRAME-$SIZE_T*10`($sp) + $POP r23,`$FRAME-$SIZE_T*9`($sp) + $POP r24,`$FRAME-$SIZE_T*8`($sp) + $POP r25,`$FRAME-$SIZE_T*7`($sp) + $POP r26,`$FRAME-$SIZE_T*6`($sp) + $POP r27,`$FRAME-$SIZE_T*5`($sp) + $POP r28,`$FRAME-$SIZE_T*4`($sp) + $POP r29,`$FRAME-$SIZE_T*3`($sp) + $POP r30,`$FRAME-$SIZE_T*2`($sp) + $POP r31,`$FRAME-$SIZE_T*1`($sp) + mtlr r0 + addi $sp,$sp,$FRAME + blr + .long 0 + .byte 0,12,4,1,0x80,18,3,0 + .long 0 + .align 4 Lsha2_block_private: ___ @@ -372,6 +375,8 @@ $code.=<<___; $ST $H,`7*$SZ`($ctx) bne Lsha2_block_private blr + .long 0 + .byte 0,12,0x14,0,0,0,0,0 ___ # Ugly hack here, because PPC assembler syntax seem to vary too @@ -379,22 +384,15 @@ ___ $code.=<<___; .align 6 LPICmeup: - bl LPIC - addi $Tbl,$Tbl,`64-4` ; "distance" between . and last nop - b LPICedup - nop - nop - nop - nop - nop -LPIC: mflr $Tbl + mflr r0 + bcl 20,31,\$+4 + mflr $Tbl ; vvvvvv "distance" between . and 1st data entry + addi $Tbl,$Tbl,`64-8` + mtlr r0 blr - nop - nop - nop - nop - nop - nop + .long 0 + .byte 0,12,0x14,0,0,0,0,0 + .space `64-9*4` ___ $code.=<<___ if ($SZ==8); .long 0x428a2f98,0xd728ae22,0x71374491,0x23ef65cd |