mirror of
https://github.com/VectorCamp/vectorscan.git
synced 2025-07-13 14:04:44 +03:00
350 lines
12 KiB
C
350 lines
12 KiB
C
/*
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* Copyright (c) 2015, Intel Corporation
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* * Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of Intel Corporation nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "accel.h"
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#include "shufti.h"
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#include "truffle.h"
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#include "vermicelli.h"
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#include "multishufti.h"
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#include "multitruffle.h"
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#include "multivermicelli.h"
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#include "ue2common.h"
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const u8 *run_accel(const union AccelAux *accel, const u8 *c, const u8 *c_end) {
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assert(ISALIGNED_N(accel, alignof(union AccelAux)));
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const u8 *rv;
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switch (accel->accel_type) {
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case ACCEL_NONE:
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DEBUG_PRINTF("accel none %p %p\n", c, c_end);
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return c;
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case ACCEL_VERM:
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DEBUG_PRINTF("accel verm %p %p\n", c, c_end);
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if (c + 15 >= c_end) {
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return c;
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}
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rv = vermicelliExec(accel->verm.c, 0, c, c_end);
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break;
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case ACCEL_VERM_NOCASE:
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DEBUG_PRINTF("accel verm nc %p %p\n", c, c_end);
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if (c + 15 >= c_end) {
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return c;
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}
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rv = vermicelliExec(accel->verm.c, 1, c, c_end);
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break;
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case ACCEL_DVERM:
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DEBUG_PRINTF("accel dverm %p %p\n", c, c_end);
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if (c + 16 + 1 >= c_end) {
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return c;
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}
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/* need to stop one early to get an accurate end state */
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rv = vermicelliDoubleExec(accel->dverm.c1, accel->dverm.c2, 0, c,
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c_end - 1);
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break;
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case ACCEL_DVERM_NOCASE:
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DEBUG_PRINTF("accel dverm nc %p %p\n", c, c_end);
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if (c + 16 + 1 >= c_end) {
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return c;
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}
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/* need to stop one early to get an accurate end state */
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rv = vermicelliDoubleExec(accel->dverm.c1, accel->dverm.c2, 1, c,
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c_end - 1);
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break;
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case ACCEL_SHUFTI:
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DEBUG_PRINTF("accel shufti %p %p\n", c, c_end);
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if (c + 15 >= c_end) {
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return c;
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}
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rv = shuftiExec(accel->shufti.lo, accel->shufti.hi, c, c_end);
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break;
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case ACCEL_TRUFFLE:
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DEBUG_PRINTF("accel Truffle %p %p\n", c, c_end);
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if (c + 15 >= c_end) {
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return c;
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}
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rv = truffleExec(accel->truffle.mask1, accel->truffle.mask2, c, c_end);
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break;
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case ACCEL_DSHUFTI:
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DEBUG_PRINTF("accel dshufti %p %p\n", c, c_end);
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if (c + 15 + 1 >= c_end) {
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return c;
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}
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/* need to stop one early to get an accurate end state */
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rv = shuftiDoubleExec(accel->dshufti.lo1,
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accel->dshufti.hi1,
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accel->dshufti.lo2,
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accel->dshufti.hi2, c, c_end - 1);
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break;
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case ACCEL_RED_TAPE:
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DEBUG_PRINTF("accel red tape %p %p\n", c, c_end);
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rv = c_end;
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break;
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/* multibyte matchers */
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case ACCEL_MLVERM:
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DEBUG_PRINTF("accel mlverm %p %p\n", c, c_end);
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if (c + 15 >= c_end) {
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return c;
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}
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rv = long_vermicelliExec(accel->mverm.c, 0, c, c_end, accel->mverm.len);
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break;
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case ACCEL_MLVERM_NOCASE:
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DEBUG_PRINTF("accel mlverm nc %p %p\n", c, c_end);
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if (c + 15 >= c_end) {
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return c;
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}
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rv = long_vermicelliExec(accel->mverm.c, 1, c, c_end, accel->mverm.len);
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break;
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case ACCEL_MLGVERM:
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DEBUG_PRINTF("accel mlgverm %p %p\n", c, c_end);
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if (c + 15 >= c_end) {
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return c;
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}
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rv = longgrab_vermicelliExec(accel->mverm.c, 0, c, c_end, accel->mverm.len);
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break;
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case ACCEL_MLGVERM_NOCASE:
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DEBUG_PRINTF("accel mlgverm nc %p %p\n", c, c_end);
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if (c + 15 >= c_end) {
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return c;
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}
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rv = longgrab_vermicelliExec(accel->mverm.c, 1, c, c_end, accel->mverm.len);
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break;
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case ACCEL_MSVERM:
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DEBUG_PRINTF("accel msverm %p %p\n", c, c_end);
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if (c + 15 >= c_end) {
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return c;
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}
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rv = shift_vermicelliExec(accel->mverm.c, 0, c, c_end, accel->mverm.len);
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break;
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case ACCEL_MSVERM_NOCASE:
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DEBUG_PRINTF("accel msverm nc %p %p\n", c, c_end);
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if (c + 15 >= c_end) {
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return c;
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}
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rv = shift_vermicelliExec(accel->mverm.c, 1, c, c_end, accel->mverm.len);
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break;
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case ACCEL_MSGVERM:
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DEBUG_PRINTF("accel msgverm %p %p\n", c, c_end);
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if (c + 15 >= c_end) {
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return c;
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}
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rv = shiftgrab_vermicelliExec(accel->mverm.c, 0, c, c_end, accel->mverm.len);
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break;
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case ACCEL_MSGVERM_NOCASE:
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DEBUG_PRINTF("accel msgverm nc %p %p\n", c, c_end);
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if (c + 15 >= c_end) {
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return c;
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}
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rv = shiftgrab_vermicelliExec(accel->mverm.c, 1, c, c_end, accel->mverm.len);
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break;
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case ACCEL_MDSVERM:
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DEBUG_PRINTF("accel mdsverm %p %p\n", c, c_end);
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if (c + 15 >= c_end) {
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return c;
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}
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rv = doubleshift_vermicelliExec(accel->mdverm.c, 0, c, c_end,
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accel->mdverm.len1, accel->mdverm.len2);
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break;
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case ACCEL_MDSVERM_NOCASE:
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DEBUG_PRINTF("accel mdsverm nc %p %p\n", c, c_end);
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if (c + 15 >= c_end) {
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return c;
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}
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rv = doubleshift_vermicelliExec(accel->mdverm.c, 1, c, c_end,
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accel->mdverm.len1, accel->mdverm.len2);
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break;
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case ACCEL_MDSGVERM:
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DEBUG_PRINTF("accel mdsgverm %p %p\n", c, c_end);
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if (c + 15 >= c_end) {
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return c;
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}
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rv = doubleshiftgrab_vermicelliExec(accel->mdverm.c, 0, c, c_end,
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accel->mdverm.len1, accel->mdverm.len2);
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break;
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case ACCEL_MDSGVERM_NOCASE:
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DEBUG_PRINTF("accel mdsgverm nc %p %p\n", c, c_end);
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if (c + 15 >= c_end) {
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return c;
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}
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rv = doubleshiftgrab_vermicelliExec(accel->mdverm.c, 1, c, c_end,
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accel->mdverm.len1, accel->mdverm.len2);
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break;
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case ACCEL_MLSHUFTI:
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DEBUG_PRINTF("accel mlshufti %p %p\n", c, c_end);
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if (c + 15 >= c_end) {
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return c;
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}
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rv = long_shuftiExec(accel->mshufti.lo, accel->mshufti.hi, c, c_end,
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accel->mshufti.len);
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break;
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case ACCEL_MLGSHUFTI:
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DEBUG_PRINTF("accel mlgshufti %p %p\n", c, c_end);
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if (c + 15 >= c_end) {
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return c;
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}
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rv = longgrab_shuftiExec(accel->mshufti.lo, accel->mshufti.hi, c, c_end,
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accel->mshufti.len);
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break;
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case ACCEL_MSSHUFTI:
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DEBUG_PRINTF("accel msshufti %p %p\n", c, c_end);
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if (c + 15 >= c_end) {
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return c;
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}
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rv = shift_shuftiExec(accel->mshufti.lo, accel->mshufti.hi, c, c_end,
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accel->mshufti.len);
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break;
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case ACCEL_MSGSHUFTI:
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DEBUG_PRINTF("accel msgshufti %p %p\n", c, c_end);
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if (c + 15 >= c_end) {
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return c;
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}
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rv = shiftgrab_shuftiExec(accel->mshufti.lo, accel->mshufti.hi, c, c_end,
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accel->mshufti.len);
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break;
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case ACCEL_MDSSHUFTI:
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DEBUG_PRINTF("accel mdsshufti %p %p\n", c, c_end);
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if (c + 15 >= c_end) {
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return c;
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}
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rv = doubleshift_shuftiExec(accel->mdshufti.lo, accel->mdshufti.hi, c, c_end,
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accel->mdshufti.len1, accel->mdshufti.len2);
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break;
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case ACCEL_MDSGSHUFTI:
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DEBUG_PRINTF("accel msgshufti %p %p\n", c, c_end);
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if (c + 15 >= c_end) {
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return c;
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}
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rv = doubleshiftgrab_shuftiExec(accel->mdshufti.lo, accel->mdshufti.hi, c, c_end,
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accel->mdshufti.len1, accel->mdshufti.len2);
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break;
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case ACCEL_MLTRUFFLE:
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DEBUG_PRINTF("accel mltruffle %p %p\n", c, c_end);
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if (c + 15 >= c_end) {
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return c;
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}
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rv = long_truffleExec(accel->mtruffle.mask1, accel->mtruffle.mask2,
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c, c_end, accel->mtruffle.len);
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break;
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case ACCEL_MLGTRUFFLE:
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DEBUG_PRINTF("accel mlgtruffle %p %p\n", c, c_end);
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if (c + 15 >= c_end) {
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return c;
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}
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rv = longgrab_truffleExec(accel->mtruffle.mask1, accel->mtruffle.mask2,
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c, c_end, accel->mtruffle.len);
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break;
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case ACCEL_MSTRUFFLE:
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DEBUG_PRINTF("accel mstruffle %p %p\n", c, c_end);
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if (c + 15 >= c_end) {
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return c;
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}
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rv = shift_truffleExec(accel->mtruffle.mask1, accel->mtruffle.mask2,
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c, c_end, accel->mtruffle.len);
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break;
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case ACCEL_MSGTRUFFLE:
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DEBUG_PRINTF("accel msgtruffle %p %p\n", c, c_end);
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if (c + 15 >= c_end) {
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return c;
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}
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rv = shiftgrab_truffleExec(accel->mtruffle.mask1, accel->mtruffle.mask2,
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c, c_end, accel->mtruffle.len);
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break;
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case ACCEL_MDSTRUFFLE:
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DEBUG_PRINTF("accel mdstruffle %p %p\n", c, c_end);
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if (c + 15 >= c_end) {
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return c;
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}
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rv = doubleshift_truffleExec(accel->mdtruffle.mask1,
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accel->mdtruffle.mask2, c, c_end,
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accel->mdtruffle.len1,
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accel->mdtruffle.len2);
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break;
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case ACCEL_MDSGTRUFFLE:
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DEBUG_PRINTF("accel mdsgtruffle %p %p\n", c, c_end);
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if (c + 15 >= c_end) {
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return c;
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}
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rv = doubleshiftgrab_truffleExec(accel->mdtruffle.mask1,
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accel->mdtruffle.mask2, c, c_end,
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accel->mdtruffle.len1,
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accel->mdtruffle.len2);
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break;
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default:
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assert(!"not here");
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return c;
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}
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DEBUG_PRINTF("adjusting for offset %u\n", accel->generic.offset);
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/* adjust offset to take into account the offset */
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rv = MAX(c + accel->generic.offset, rv);
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rv -= accel->generic.offset;
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return rv;
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}
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