wownero
/
wownero
7
13
Fork 13
Code Issues 8 Pull Requests Releases 41 Wiki Activity

slow-hash: cache TLS references locally once at function start

Browse Source
pull/200/head
moneromooo-monero 5 years ago
parent 5bbbe3902b
commit 7ac3334217
No known key found for this signature in database
GPG Key ID: 686F07454D6CEFC3
1 changed files with 31 additions and 27 deletions
Show Stats Download Patch File Download Diff File

58
src/crypto/slow-hash.c
Unescape View File

@ -274,10 +274,10 @@ static inline int use_v4_jit(void)
#define VARIANT2_2() \
do if (variant == 2 || variant == 3) \
{ \
*U64(hp_state + (j ^ 0x10)) ^= SWAP64LE(hi); \
*(U64(hp_state + (j ^ 0x10)) + 1) ^= SWAP64LE(lo); \
hi ^= SWAP64LE(*U64(hp_state + (j ^ 0x20))); \
lo ^= SWAP64LE(*(U64(hp_state + (j ^ 0x20)) + 1)); \
*U64(local_hp_state + (j ^ 0x10)) ^= SWAP64LE(hi); \
*(U64(local_hp_state + (j ^ 0x10)) + 1) ^= SWAP64LE(lo); \
hi ^= SWAP64LE(*U64(local_hp_state + (j ^ 0x20))); \
lo ^= SWAP64LE(*(U64(local_hp_state + (j ^ 0x20)) + 1)); \
} while (0)
#define V4_REG_LOAD(dst, src) \
@ -405,7 +405,7 @@ static inline int use_v4_jit(void)
#define pre_aes() \
j = state_index(a); \
_c = _mm_load_si128(R128(&hp_state[j])); \
_c = _mm_load_si128(R128(&local_hp_state[j])); \
_a = _mm_load_si128(R128(a)); \
/*
@ -418,20 +418,20 @@ static inline int use_v4_jit(void)
* This code is based upon an optimized implementation by dga.
*/
#define post_aes() \
VARIANT2_SHUFFLE_ADD_SSE2(hp_state, j); \
VARIANT2_SHUFFLE_ADD_SSE2(local_hp_state, j); \
_mm_store_si128(R128(c), _c); \
_mm_store_si128(R128(&hp_state[j]), _mm_xor_si128(_b, _c)); \
VARIANT1_1(&hp_state[j]); \
_mm_store_si128(R128(&local_hp_state[j]), _mm_xor_si128(_b, _c)); \
VARIANT1_1(&local_hp_state[j]); \
j = state_index(c); \
p = U64(&hp_state[j]); \
p = U64(&local_hp_state[j]); \
b[0] = p[0]; b[1] = p[1]; \
VARIANT2_INTEGER_MATH_SSE2(b, c); \
VARIANT4_RANDOM_MATH(a, b, r, &_b, &_b1); \
__mul(); \
VARIANT2_2(); \
VARIANT2_SHUFFLE_ADD_SSE2(hp_state, j); \
VARIANT2_SHUFFLE_ADD_SSE2(local_hp_state, j); \
a[0] += hi; a[1] += lo; \
p = U64(&hp_state[j]); \
p = U64(&local_hp_state[j]); \
p[0] = a[0]; p[1] = a[1]; \
a[0] ^= b[0]; a[1] ^= b[1]; \
VARIANT1_2(p + 1); \
@ -893,6 +893,10 @@ void cn_slow_hash(const void *data, size_t length, char *hash, int variant, int
if(hp_state == NULL)
slow_hash_allocate_state();
// locals to avoid constant TLS dereferencing
uint8_t *local_hp_state = hp_state;
v4_random_math_JIT_func local_hp_jitfunc = hp_jitfunc;
/* CryptoNight Step 1: Use Keccak1600 to initialize the 'state' (and 'text') buffers from the data. */
if (prehashed) {
memcpy(&state.hs, data, length);
@ -915,7 +919,7 @@ void cn_slow_hash(const void *data, size_t length, char *hash, int variant, int
for(i = 0; i < MEMORY / INIT_SIZE_BYTE; i++)
{
aes_pseudo_round(text, text, expandedKey, INIT_SIZE_BLK);
memcpy(&hp_state[i * INIT_SIZE_BYTE], text, INIT_SIZE_BYTE);
memcpy(&local_hp_state[i * INIT_SIZE_BYTE], text, INIT_SIZE_BYTE);
}
}
else
@ -927,7 +931,7 @@ void cn_slow_hash(const void *data, size_t length, char *hash, int variant, int
for(j = 0; j < INIT_SIZE_BLK; j++)
aesb_pseudo_round(&text[AES_BLOCK_SIZE * j], &text[AES_BLOCK_SIZE * j], aes_ctx->key->exp_data);
memcpy(&hp_state[i * INIT_SIZE_BYTE], text, INIT_SIZE_BYTE);
memcpy(&local_hp_state[i * INIT_SIZE_BYTE], text, INIT_SIZE_BYTE);
}
}
@ -975,7 +979,7 @@ void cn_slow_hash(const void *data, size_t length, char *hash, int variant, int
for(i = 0; i < MEMORY / INIT_SIZE_BYTE; i++)
{
// add the xor to the pseudo round
aes_pseudo_round_xor(text, text, expandedKey, &hp_state[i * INIT_SIZE_BYTE], INIT_SIZE_BLK);
aes_pseudo_round_xor(text, text, expandedKey, &local_hp_state[i * INIT_SIZE_BYTE], INIT_SIZE_BLK);
}
}
else
@ -985,7 +989,7 @@ void cn_slow_hash(const void *data, size_t length, char *hash, int variant, int
{
for(j = 0; j < INIT_SIZE_BLK; j++)
{
xor_blocks(&text[j * AES_BLOCK_SIZE], &hp_state[i * INIT_SIZE_BYTE + j * AES_BLOCK_SIZE]);
xor_blocks(&text[j * AES_BLOCK_SIZE], &local_hp_state[i * INIT_SIZE_BYTE + j * AES_BLOCK_SIZE]);
aesb_pseudo_round(&text[AES_BLOCK_SIZE * j], &text[AES_BLOCK_SIZE * j], aes_ctx->key->exp_data);
}
}
@ -1065,24 +1069,24 @@ union cn_slow_hash_state
#define pre_aes() \
j = state_index(a); \
_c = vld1q_u8(&hp_state[j]); \
_c = vld1q_u8(&local_hp_state[j]); \
_a = vld1q_u8((const uint8_t *)a); \
#define post_aes() \
VARIANT2_SHUFFLE_ADD_NEON(hp_state, j); \
VARIANT2_SHUFFLE_ADD_NEON(local_hp_state, j); \
vst1q_u8((uint8_t *)c, _c); \
vst1q_u8(&hp_state[j], veorq_u8(_b, _c)); \
VARIANT1_1(&hp_state[j]); \
vst1q_u8(&local_hp_state[j], veorq_u8(_b, _c)); \
VARIANT1_1(&local_hp_state[j]); \
j = state_index(c); \
p = U64(&hp_state[j]); \
p = U64(&local_hp_state[j]); \
b[0] = p[0]; b[1] = p[1]; \
VARIANT2_PORTABLE_INTEGER_MATH(b, c); \
VARIANT4_RANDOM_MATH(a, b, r, &_b, &_b1); \
__mul(); \
VARIANT2_2(); \
VARIANT2_SHUFFLE_ADD_NEON(hp_state, j); \
VARIANT2_SHUFFLE_ADD_NEON(local_hp_state, j); \
a[0] += hi; a[1] += lo; \
p = U64(&hp_state[j]); \
p = U64(&local_hp_state[j]); \
p[0] = a[0]; p[1] = a[1]; \
a[0] ^= b[0]; a[1] ^= b[1]; \
VARIANT1_2(p + 1); \
@ -1245,9 +1249,9 @@ void cn_slow_hash(const void *data, size_t length, char *hash, int variant, int
RDATA_ALIGN16 uint8_t expandedKey[240];
#ifndef FORCE_USE_HEAP
RDATA_ALIGN16 uint8_t hp_state[MEMORY];
RDATA_ALIGN16 uint8_t local_hp_state[MEMORY];
#else
uint8_t *hp_state = (uint8_t *)aligned_malloc(MEMORY,16);
uint8_t *local_hp_state = (uint8_t *)aligned_malloc(MEMORY,16);
#endif
uint8_t text[INIT_SIZE_BYTE];
@ -1287,7 +1291,7 @@ void cn_slow_hash(const void *data, size_t length, char *hash, int variant, int
for(i = 0; i < MEMORY / INIT_SIZE_BYTE; i++)
{
aes_pseudo_round(text, text, expandedKey, INIT_SIZE_BLK);
memcpy(&hp_state[i * INIT_SIZE_BYTE], text, INIT_SIZE_BYTE);
memcpy(&local_hp_state[i * INIT_SIZE_BYTE], text, INIT_SIZE_BYTE);
}
U64(a)[0] = U64(&state.k[0])[0] ^ U64(&state.k[32])[0];
@ -1322,7 +1326,7 @@ void cn_slow_hash(const void *data, size_t length, char *hash, int variant, int
for(i = 0; i < MEMORY / INIT_SIZE_BYTE; i++)
{
// add the xor to the pseudo round
aes_pseudo_round_xor(text, text, expandedKey, &hp_state[i * INIT_SIZE_BYTE], INIT_SIZE_BLK);
aes_pseudo_round_xor(text, text, expandedKey, &local_hp_state[i * INIT_SIZE_BYTE], INIT_SIZE_BLK);
}
/* CryptoNight Step 5: Apply Keccak to the state again, and then
@ -1337,7 +1341,7 @@ void cn_slow_hash(const void *data, size_t length, char *hash, int variant, int
extra_hashes[state.hs.b[0] & 3](&state, 200, hash);
#ifdef FORCE_USE_HEAP
aligned_free(hp_state);
aligned_free(local_hp_state);
#endif
}
#else /* aarch64 && crypto */

Write Preview
Loading…
Cancel
Save