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vendor/golang.org/x/crypto/curve25519: avoid loss of R15 in -dynlink mode

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Original code fixed in https://go-review.googlesource.com/#/c/36359/.

Fixes #18820.

Change-Id: I060e6c9d0e312b4fd5d0674aff131055bf5cf61d
Reviewed-on: https://go-review.googlesource.com/36412
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Adam Langley <agl@golang.org>
This commit is contained in:
Russ Cox 2017-02-06 14:41:12 -05:00
parent 807c80fce3
commit bc548d71b9
6 changed files with 30 additions and 14 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
src/vendor/golang_org/x/crypto/curve25519/const_amd64.h vendored Normal file
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@ -0,0 +1,8 @@
// Copyright 2012 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// This code was translated into a form compatible with 6a from the public
// domain sources in SUPERCOP: http://bench.cr.yp.to/supercop.html
#define REDMASK51 0x0007FFFFFFFFFFFF

4
src/vendor/golang_org/x/crypto/curve25519/const_amd64.s vendored
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@ -7,8 +7,8 @@
// +build amd64,!gccgo,!appengine // +build amd64,!gccgo,!appengine
DATA ·REDMASK51(SB)/8, $0x0007FFFFFFFFFFFF // These constants cannot be encoded in non-MOVQ immediates.
GLOBL ·REDMASK51(SB), 8, $8 // We access them directly from memory instead.
DATA ·_121666_213(SB)/8, $996687872 DATA ·_121666_213(SB)/8, $996687872
GLOBL ·_121666_213(SB), 8, $8 GLOBL ·_121666_213(SB), 8, $8

4
src/vendor/golang_org/x/crypto/curve25519/freeze_amd64.s vendored
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@ -7,6 +7,8 @@
// +build amd64,!gccgo,!appengine // +build amd64,!gccgo,!appengine
#include "const_amd64.h"
// func freeze(inout *[5]uint64) // func freeze(inout *[5]uint64)
TEXT ·freeze(SB),7,$0-8 TEXT ·freeze(SB),7,$0-8
MOVQ inout+0(FP), DI MOVQ inout+0(FP), DI
@ -16,7 +18,7 @@ TEXT ·freeze(SB),7,$0-8
MOVQ 16(DI),CX MOVQ 16(DI),CX
MOVQ 24(DI),R8 MOVQ 24(DI),R8
MOVQ 32(DI),R9 MOVQ 32(DI),R9
MOVQ ·REDMASK51(SB),AX MOVQ $REDMASK51,AX
MOVQ AX,R10 MOVQ AX,R10
SUBQ $18,R10 SUBQ $18,R10
MOVQ $3,R11 MOVQ $3,R11

20
src/vendor/golang_org/x/crypto/curve25519/ladderstep_amd64.s vendored
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@ -7,6 +7,8 @@
// +build amd64,!gccgo,!appengine // +build amd64,!gccgo,!appengine
#include "const_amd64.h"
// func ladderstep(inout *[5][5]uint64) // func ladderstep(inout *[5][5]uint64)
TEXT ·ladderstep(SB),0,$296-8 TEXT ·ladderstep(SB),0,$296-8
MOVQ inout+0(FP),DI MOVQ inout+0(FP),DI
@ -118,7 +120,7 @@ TEXT ·ladderstep(SB),0,$296-8
MULQ 72(SP) MULQ 72(SP)
ADDQ AX,R12 ADDQ AX,R12
ADCQ DX,R13 ADCQ DX,R13
MOVQ ·REDMASK51(SB),DX MOVQ $REDMASK51,DX
SHLQ $13,CX:SI SHLQ $13,CX:SI
ANDQ DX,SI ANDQ DX,SI
SHLQ $13,R9:R8 SHLQ $13,R9:R8
@ -233,7 +235,7 @@ TEXT ·ladderstep(SB),0,$296-8
MULQ 32(SP) MULQ 32(SP)
ADDQ AX,R12 ADDQ AX,R12
ADCQ DX,R13 ADCQ DX,R13
MOVQ ·REDMASK51(SB),DX MOVQ $REDMASK51,DX
SHLQ $13,CX:SI SHLQ $13,CX:SI
ANDQ DX,SI ANDQ DX,SI
SHLQ $13,R9:R8 SHLQ $13,R9:R8
@ -438,7 +440,7 @@ TEXT ·ladderstep(SB),0,$296-8
MULQ 72(SP) MULQ 72(SP)
ADDQ AX,R12 ADDQ AX,R12
ADCQ DX,R13 ADCQ DX,R13
MOVQ ·REDMASK51(SB),DX MOVQ $REDMASK51,DX
SHLQ $13,CX:SI SHLQ $13,CX:SI
ANDQ DX,SI ANDQ DX,SI
SHLQ $13,R9:R8 SHLQ $13,R9:R8
@ -588,7 +590,7 @@ TEXT ·ladderstep(SB),0,$296-8
MULQ 32(SP) MULQ 32(SP)
ADDQ AX,R12 ADDQ AX,R12
ADCQ DX,R13 ADCQ DX,R13
MOVQ ·REDMASK51(SB),DX MOVQ $REDMASK51,DX
SHLQ $13,CX:SI SHLQ $13,CX:SI
ANDQ DX,SI ANDQ DX,SI
SHLQ $13,R9:R8 SHLQ $13,R9:R8
@ -728,7 +730,7 @@ TEXT ·ladderstep(SB),0,$296-8
MULQ 152(DI) MULQ 152(DI)
ADDQ AX,R12 ADDQ AX,R12
ADCQ DX,R13 ADCQ DX,R13
MOVQ ·REDMASK51(SB),DX MOVQ $REDMASK51,DX
SHLQ $13,CX:SI SHLQ $13,CX:SI
ANDQ DX,SI ANDQ DX,SI
SHLQ $13,R9:R8 SHLQ $13,R9:R8
@ -843,7 +845,7 @@ TEXT ·ladderstep(SB),0,$296-8
MULQ 192(DI) MULQ 192(DI)
ADDQ AX,R12 ADDQ AX,R12
ADCQ DX,R13 ADCQ DX,R13
MOVQ ·REDMASK51(SB),DX MOVQ $REDMASK51,DX
SHLQ $13,CX:SI SHLQ $13,CX:SI
ANDQ DX,SI ANDQ DX,SI
SHLQ $13,R9:R8 SHLQ $13,R9:R8
@ -993,7 +995,7 @@ TEXT ·ladderstep(SB),0,$296-8
MULQ 32(DI) MULQ 32(DI)
ADDQ AX,R12 ADDQ AX,R12
ADCQ DX,R13 ADCQ DX,R13
MOVQ ·REDMASK51(SB),DX MOVQ $REDMASK51,DX
SHLQ $13,CX:SI SHLQ $13,CX:SI
ANDQ DX,SI ANDQ DX,SI
SHLQ $13,R9:R8 SHLQ $13,R9:R8
@ -1143,7 +1145,7 @@ TEXT ·ladderstep(SB),0,$296-8
MULQ 112(SP) MULQ 112(SP)
ADDQ AX,R12 ADDQ AX,R12
ADCQ DX,R13 ADCQ DX,R13
MOVQ ·REDMASK51(SB),DX MOVQ $REDMASK51,DX
SHLQ $13,CX:SI SHLQ $13,CX:SI
ANDQ DX,SI ANDQ DX,SI
SHLQ $13,R9:R8 SHLQ $13,R9:R8
@ -1329,7 +1331,7 @@ TEXT ·ladderstep(SB),0,$296-8
MULQ 192(SP) MULQ 192(SP)
ADDQ AX,R12 ADDQ AX,R12
ADCQ DX,R13 ADCQ DX,R13
MOVQ ·REDMASK51(SB),DX MOVQ $REDMASK51,DX
SHLQ $13,CX:SI SHLQ $13,CX:SI
ANDQ DX,SI ANDQ DX,SI
SHLQ $13,R9:R8 SHLQ $13,R9:R8

4
src/vendor/golang_org/x/crypto/curve25519/mul_amd64.s vendored
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@ -7,6 +7,8 @@
// +build amd64,!gccgo,!appengine // +build amd64,!gccgo,!appengine
#include "const_amd64.h"
// func mul(dest, a, b *[5]uint64) // func mul(dest, a, b *[5]uint64)
TEXT ·mul(SB),0,$16-24 TEXT ·mul(SB),0,$16-24
MOVQ dest+0(FP), DI MOVQ dest+0(FP), DI
@ -121,7 +123,7 @@ TEXT ·mul(SB),0,$16-24
MULQ 32(CX) MULQ 32(CX)
ADDQ AX,R14 ADDQ AX,R14
ADCQ DX,R15 ADCQ DX,R15
MOVQ ·REDMASK51(SB),SI MOVQ $REDMASK51,SI
SHLQ $13,R9:R8 SHLQ $13,R9:R8
ANDQ SI,R8 ANDQ SI,R8
SHLQ $13,R11:R10 SHLQ $13,R11:R10

4
src/vendor/golang_org/x/crypto/curve25519/square_amd64.s vendored
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@ -7,6 +7,8 @@
// +build amd64,!gccgo,!appengine // +build amd64,!gccgo,!appengine
#include "const_amd64.h"
// func square(out, in *[5]uint64) // func square(out, in *[5]uint64)
TEXT ·square(SB),7,$0-16 TEXT ·square(SB),7,$0-16
MOVQ out+0(FP), DI MOVQ out+0(FP), DI
@ -84,7 +86,7 @@ TEXT ·square(SB),7,$0-16
MULQ 32(SI) MULQ 32(SI)
ADDQ AX,R13 ADDQ AX,R13
ADCQ DX,R14 ADCQ DX,R14
MOVQ ·REDMASK51(SB),SI MOVQ $REDMASK51,SI
SHLQ $13,R8:CX SHLQ $13,R8:CX
ANDQ SI,CX ANDQ SI,CX
SHLQ $13,R10:R9 SHLQ $13,R10:R9