forked from TrueCloudLab/restic
Update crypto library
This allows building restic with Go 1.3 on ARM. Closes #501
This commit is contained in:
Alexander Neumann
parent
039019689a
commit
306c0fea16
3 changed files with 85 additions and 27 deletions
4
vendor/manifest
vendored
4
vendor/manifest
vendored
|
|
@ -53,8 +53,8 @@
|
|||
{
|
||||
"importpath": "golang.org/x/crypto/poly1305",
|
||||
"repository": "https://go.googlesource.com/crypto",
|
||||
"revision": "cc04154d65fb9296747569b107cfd05380b1ea3e",
|
||||
"branch": "HEAD",
|
||||
"revision": "1777f3ba8c1fed80fcaec3317e3aaa4f627764d2",
|
||||
"branch": "master",
|
||||
"path": "/poly1305"
|
||||
},
|
||||
{
|
||||
|
|
|
|||
|
|
@ -7,19 +7,17 @@
|
|||
|
||||
// +build arm,!gccgo,!appengine
|
||||
|
||||
#include "textflag.h"
|
||||
|
||||
DATA poly1305_init_constants_armv6<>+0x00(SB)/4, $0x3ffffff
|
||||
DATA poly1305_init_constants_armv6<>+0x04(SB)/4, $0x3ffff03
|
||||
DATA poly1305_init_constants_armv6<>+0x08(SB)/4, $0x3ffc0ff
|
||||
DATA poly1305_init_constants_armv6<>+0x0c(SB)/4, $0x3f03fff
|
||||
DATA poly1305_init_constants_armv6<>+0x10(SB)/4, $0x00fffff
|
||||
GLOBL poly1305_init_constants_armv6<>(SB), RODATA, $20
|
||||
GLOBL poly1305_init_constants_armv6<>(SB), 8, $20
|
||||
|
||||
// Warning: the linker may use R11 to synthesize certain instructions. Please
|
||||
// take care and verify that no synthetic instructions use it.
|
||||
|
||||
TEXT poly1305_init_ext_armv6<>(SB),NOSPLIT,$-4
|
||||
TEXT poly1305_init_ext_armv6<>(SB),4,$-4
|
||||
MOVM.DB.W [R4-R11], (R13)
|
||||
MOVM.IA.W (R1), [R2-R5]
|
||||
MOVW $poly1305_init_constants_armv6<>(SB), R7
|
||||
|
|
@ -49,7 +47,17 @@ TEXT poly1305_init_ext_armv6<>(SB),NOSPLIT,$-4
|
|||
MOVM.IA.W (R13), [R4-R11]
|
||||
RET
|
||||
|
||||
TEXT poly1305_blocks_armv6<>(SB),NOSPLIT,$-4
|
||||
#define MOVW_UNALIGNED(Rsrc, Rdst, Rtmp, offset) \
|
||||
MOVBU (offset+0)(Rsrc), Rtmp; \
|
||||
MOVBU Rtmp, (offset+0)(Rdst); \
|
||||
MOVBU (offset+1)(Rsrc), Rtmp; \
|
||||
MOVBU Rtmp, (offset+1)(Rdst); \
|
||||
MOVBU (offset+2)(Rsrc), Rtmp; \
|
||||
MOVBU Rtmp, (offset+2)(Rdst); \
|
||||
MOVBU (offset+3)(Rsrc), Rtmp; \
|
||||
MOVBU Rtmp, (offset+3)(Rdst)
|
||||
|
||||
TEXT poly1305_blocks_armv6<>(SB),4,$-4
|
||||
MOVM.DB.W [R4, R5, R6, R7, R8, R9, g, R11, R14], (R13)
|
||||
SUB $128, R13
|
||||
MOVW R0, 36(R13)
|
||||
|
|
@ -68,7 +76,19 @@ TEXT poly1305_blocks_armv6<>(SB),NOSPLIT,$-4
|
|||
CMP $16, R12
|
||||
BLO poly1305_blocks_armv6_done
|
||||
poly1305_blocks_armv6_mainloop:
|
||||
WORD $0xe31e0003 // TST R14, #3 not working see issue 5921
|
||||
BEQ poly1305_blocks_armv6_mainloop_aligned
|
||||
ADD $48, R13, g
|
||||
MOVW_UNALIGNED(R14, g, R0, 0)
|
||||
MOVW_UNALIGNED(R14, g, R0, 4)
|
||||
MOVW_UNALIGNED(R14, g, R0, 8)
|
||||
MOVW_UNALIGNED(R14, g, R0, 12)
|
||||
MOVM.IA (g), [R0-R3]
|
||||
ADD $16, R14
|
||||
B poly1305_blocks_armv6_mainloop_loaded
|
||||
poly1305_blocks_armv6_mainloop_aligned:
|
||||
MOVM.IA.W (R14), [R0-R3]
|
||||
poly1305_blocks_armv6_mainloop_loaded:
|
||||
MOVW R0>>26, g
|
||||
MOVW R1>>20, R11
|
||||
MOVW R2>>14, R12
|
||||
|
|
@ -176,7 +196,17 @@ poly1305_blocks_armv6_done:
|
|||
MOVM.IA.W (R13), [R4, R5, R6, R7, R8, R9, g, R11, R14]
|
||||
RET
|
||||
|
||||
TEXT poly1305_finish_ext_armv6<>(SB),NOSPLIT,$-4
|
||||
#define MOVHUP_UNALIGNED(Rsrc, Rdst, Rtmp) \
|
||||
MOVBU.P 1(Rsrc), Rtmp; \
|
||||
MOVBU.P Rtmp, 1(Rdst); \
|
||||
MOVBU.P 1(Rsrc), Rtmp; \
|
||||
MOVBU.P Rtmp, 1(Rdst)
|
||||
|
||||
#define MOVWP_UNALIGNED(Rsrc, Rdst, Rtmp) \
|
||||
MOVHUP_UNALIGNED(Rsrc, Rdst, Rtmp); \
|
||||
MOVHUP_UNALIGNED(Rsrc, Rdst, Rtmp)
|
||||
|
||||
TEXT poly1305_finish_ext_armv6<>(SB),4,$-4
|
||||
MOVM.DB.W [R4, R5, R6, R7, R8, R9, g, R11, R14], (R13)
|
||||
SUB $16, R13, R13
|
||||
MOVW R0, R5
|
||||
|
|
@ -191,16 +221,32 @@ TEXT poly1305_finish_ext_armv6<>(SB),NOSPLIT,$-4
|
|||
MOVW R0, 4(R13)
|
||||
MOVW R0, 8(R13)
|
||||
MOVW R0, 12(R13)
|
||||
WORD $0xe3110003 // TST R1, #3 not working see issue 5921
|
||||
BEQ poly1305_finish_ext_armv6_aligned
|
||||
WORD $0xe3120008 // TST R2, #8 not working see issue 5921
|
||||
BEQ poly1305_finish_ext_armv6_skip8
|
||||
MOVM.IA.W (R1), [g-R11]
|
||||
MOVM.IA.W [g-R11], (R9)
|
||||
MOVWP_UNALIGNED(R1, R9, g)
|
||||
MOVWP_UNALIGNED(R1, R9, g)
|
||||
poly1305_finish_ext_armv6_skip8:
|
||||
WORD $0xe3120004 // TST $4, R2 not working see issue 5921
|
||||
BEQ poly1305_finish_ext_armv6_skip4
|
||||
MOVWP_UNALIGNED(R1, R9, g)
|
||||
poly1305_finish_ext_armv6_skip4:
|
||||
WORD $0xe3120002 // TST $2, R2 not working see issue 5921
|
||||
BEQ poly1305_finish_ext_armv6_skip2
|
||||
MOVHUP_UNALIGNED(R1, R9, g)
|
||||
B poly1305_finish_ext_armv6_skip2
|
||||
poly1305_finish_ext_armv6_aligned:
|
||||
WORD $0xe3120008 // TST R2, #8 not working see issue 5921
|
||||
BEQ poly1305_finish_ext_armv6_skip8_aligned
|
||||
MOVM.IA.W (R1), [g-R11]
|
||||
MOVM.IA.W [g-R11], (R9)
|
||||
poly1305_finish_ext_armv6_skip8_aligned:
|
||||
WORD $0xe3120004 // TST $4, R2 not working see issue 5921
|
||||
BEQ poly1305_finish_ext_armv6_skip4_aligned
|
||||
MOVW.P 4(R1), g
|
||||
MOVW.P g, 4(R9)
|
||||
poly1305_finish_ext_armv6_skip4:
|
||||
poly1305_finish_ext_armv6_skip4_aligned:
|
||||
WORD $0xe3120002 // TST $2, R2 not working see issue 5921
|
||||
BEQ poly1305_finish_ext_armv6_skip2
|
||||
MOVHU.P 2(R1), g
|
||||
|
|
|
|||
|
|
@ -7,6 +7,7 @@ package poly1305
|
|||
import (
|
||||
"bytes"
|
||||
"testing"
|
||||
"unsafe"
|
||||
)
|
||||
|
||||
var testData = []struct {
|
||||
|
|
@ -34,41 +35,52 @@ var testData = []struct {
|
|||
},
|
||||
}
|
||||
|
||||
func TestSum(t *testing.T) {
|
||||
func testSum(t *testing.T, unaligned bool) {
|
||||
var out [16]byte
|
||||
var key [32]byte
|
||||
|
||||
for i, v := range testData {
|
||||
in := v.in
|
||||
if unaligned {
|
||||
in = unalignBytes(in)
|
||||
}
|
||||
copy(key[:], v.k)
|
||||
Sum(&out, v.in, &key)
|
||||
Sum(&out, in, &key)
|
||||
if !bytes.Equal(out[:], v.correct) {
|
||||
t.Errorf("%d: expected %x, got %x", i, v.correct, out[:])
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func Benchmark1K(b *testing.B) {
|
||||
b.StopTimer()
|
||||
func TestSum(t *testing.T) { testSum(t, false) }
|
||||
func TestSumUnaligned(t *testing.T) { testSum(t, true) }
|
||||
|
||||
func benchmark(b *testing.B, size int, unaligned bool) {
|
||||
var out [16]byte
|
||||
var key [32]byte
|
||||
in := make([]byte, 1024)
|
||||
in := make([]byte, size)
|
||||
if unaligned {
|
||||
in = unalignBytes(in)
|
||||
}
|
||||
b.SetBytes(int64(len(in)))
|
||||
b.StartTimer()
|
||||
|
||||
b.ResetTimer()
|
||||
for i := 0; i < b.N; i++ {
|
||||
Sum(&out, in, &key)
|
||||
}
|
||||
}
|
||||
|
||||
func Benchmark64(b *testing.B) {
|
||||
b.StopTimer()
|
||||
var out [16]byte
|
||||
var key [32]byte
|
||||
in := make([]byte, 64)
|
||||
b.SetBytes(int64(len(in)))
|
||||
b.StartTimer()
|
||||
func Benchmark64(b *testing.B) { benchmark(b, 64, false) }
|
||||
func Benchmark1K(b *testing.B) { benchmark(b, 1024, false) }
|
||||
func Benchmark64Unaligned(b *testing.B) { benchmark(b, 64, true) }
|
||||
func Benchmark1KUnaligned(b *testing.B) { benchmark(b, 1024, true) }
|
||||
|
||||
for i := 0; i < b.N; i++ {
|
||||
Sum(&out, in, &key)
|
||||
func unalignBytes(in []byte) []byte {
|
||||
out := make([]byte, len(in)+1)
|
||||
if uintptr(unsafe.Pointer(&out[0]))&(unsafe.Alignof(uint32(0))-1) == 0 {
|
||||
out = out[1:]
|
||||
} else {
|
||||
out = out[:len(in)]
|
||||
}
|
||||
copy(out, in)
|
||||
return out
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in a new issue