mirror of
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537 lines
21 KiB
C++
537 lines
21 KiB
C++
// Copyright (c) 2015 The Khronos Group Inc.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a
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// copy of this software and/or associated documentation files (the
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// "Materials"), to deal in the Materials without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Materials, and to
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// permit persons to whom the Materials are furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be included
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// in all copies or substantial portions of the Materials.
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//
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// MODIFICATIONS TO THIS FILE MAY MEAN IT NO LONGER ACCURATELY REFLECTS
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// KHRONOS STANDARDS. THE UNMODIFIED, NORMATIVE VERSIONS OF KHRONOS
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// SPECIFICATIONS AND HEADER INFORMATION ARE LOCATED AT
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// https://www.khronos.org/registry/
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//
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// THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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// IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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// CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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// TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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// MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.
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#include <libspirv/libspirv.h>
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#include "binary.h"
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#include "diagnostic.h"
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#include "ext_inst.h"
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#include "opcode.h"
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#include "operand.h"
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#include <assert.h>
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#include <string.h>
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#include <sstream>
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// Binary API
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enum {
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I32_ENDIAN_LITTLE = 0x03020100ul,
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I32_ENDIAN_BIG = 0x00010203ul,
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};
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static const union {
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unsigned char bytes[4];
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uint32_t value;
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} o32_host_order = {{0, 1, 2, 3}};
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#define I32_ENDIAN_HOST (o32_host_order.value)
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spv_result_t spvBinaryEndianness(const spv_binary binary,
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spv_endianness_t *pEndian) {
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spvCheck(!binary->code || !binary->wordCount,
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return SPV_ERROR_INVALID_BINARY);
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spvCheck(!pEndian, return SPV_ERROR_INVALID_POINTER);
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uint8_t bytes[4];
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memcpy(bytes, binary->code, sizeof(uint32_t));
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if (0x03 == bytes[0] && 0x02 == bytes[1] && 0x23 == bytes[2] &&
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0x07 == bytes[3]) {
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*pEndian = SPV_ENDIANNESS_LITTLE;
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return SPV_SUCCESS;
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}
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if (0x07 == bytes[0] && 0x23 == bytes[1] && 0x02 == bytes[2] &&
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0x03 == bytes[3]) {
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*pEndian = SPV_ENDIANNESS_BIG;
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return SPV_SUCCESS;
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}
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return SPV_ERROR_INVALID_BINARY;
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}
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uint32_t spvFixWord(const uint32_t word, const spv_endianness_t endian) {
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if ((SPV_ENDIANNESS_LITTLE == endian && I32_ENDIAN_HOST == I32_ENDIAN_BIG) ||
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(SPV_ENDIANNESS_BIG == endian && I32_ENDIAN_HOST == I32_ENDIAN_LITTLE)) {
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return (word & 0x000000ff) << 24 | (word & 0x0000ff00) << 8 |
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(word & 0x00ff0000) >> 8 | (word & 0xff000000) >> 24;
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}
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return word;
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}
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spv_result_t spvBinaryHeaderGet(const spv_binary binary,
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const spv_endianness_t endian,
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spv_header_t *pHeader) {
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spvCheck(!binary->code || !binary->wordCount,
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return SPV_ERROR_INVALID_BINARY);
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spvCheck(!pHeader, return SPV_ERROR_INVALID_POINTER);
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// TODO: Validation checking?
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pHeader->magic = spvFixWord(binary->code[SPV_INDEX_MAGIC_NUMBER], endian);
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pHeader->version = spvFixWord(binary->code[SPV_INDEX_VERSION_NUMBER], endian);
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pHeader->generator =
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spvFixWord(binary->code[SPV_INDEX_GENERATOR_NUMBER], endian);
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pHeader->bound = spvFixWord(binary->code[SPV_INDEX_BOUND], endian);
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pHeader->schema = spvFixWord(binary->code[SPV_INDEX_SCHEMA], endian);
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pHeader->instructions = &binary->code[SPV_INDEX_INSTRUCTION];
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return SPV_SUCCESS;
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}
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spv_result_t spvBinaryHeaderSet(spv_binary_t *binary, const uint32_t bound) {
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spvCheck(!binary, return SPV_ERROR_INVALID_BINARY);
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spvCheck(!binary->code || !binary->wordCount,
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return SPV_ERROR_INVALID_BINARY);
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binary->code[SPV_INDEX_MAGIC_NUMBER] = SPV_MAGIC_NUMBER;
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binary->code[SPV_INDEX_VERSION_NUMBER] = SPV_VERSION_NUMBER;
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binary->code[SPV_INDEX_GENERATOR_NUMBER] = SPV_GENERATOR_KHRONOS;
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binary->code[SPV_INDEX_BOUND] = bound;
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binary->code[SPV_INDEX_SCHEMA] = 0; // NOTE: Reserved
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return SPV_SUCCESS;
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}
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spv_result_t spvBinaryEncodeU32(const uint32_t value, spv_instruction_t *pInst,
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const spv_position position,
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spv_diagnostic *pDiagnostic) {
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spvCheck(pInst->wordCount + 1 > SPV_LIMIT_INSTRUCTION_WORD_COUNT_MAX,
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DIAGNOSTIC << "Instruction word count '"
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<< SPV_LIMIT_INSTRUCTION_WORD_COUNT_MAX << "' exceeded.";
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return SPV_ERROR_INVALID_TEXT);
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pInst->words[pInst->wordCount++] = (uint32_t)value;
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return SPV_SUCCESS;
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}
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spv_result_t spvBinaryEncodeU64(const uint64_t value, spv_instruction_t *pInst,
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const spv_position position,
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spv_diagnostic *pDiagnostic) {
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spvCheck(pInst->wordCount + 2 > SPV_LIMIT_INSTRUCTION_WORD_COUNT_MAX,
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DIAGNOSTIC << "Instruction word count '"
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<< SPV_LIMIT_INSTRUCTION_WORD_COUNT_MAX << "' exceeded.";
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return SPV_ERROR_INVALID_TEXT);
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uint32_t low = (uint32_t)(0x00000000ffffffff & value);
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uint32_t high = (uint32_t)((0xffffffff00000000 & value) >> 32);
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pInst->words[pInst->wordCount++] = low;
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pInst->words[pInst->wordCount++] = high;
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return SPV_SUCCESS;
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}
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spv_result_t spvBinaryEncodeString(const char *str, spv_instruction_t *pInst,
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const spv_position position,
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spv_diagnostic *pDiagnostic) {
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size_t length = strlen(str);
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size_t wordCount = (length / 4) + 1;
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spvCheck((sizeof(uint32_t) * pInst->wordCount) + length >
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sizeof(uint32_t) * SPV_LIMIT_INSTRUCTION_WORD_COUNT_MAX,
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DIAGNOSTIC << "Instruction word count '"
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<< SPV_LIMIT_INSTRUCTION_WORD_COUNT_MAX << "'exceeded.";
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return SPV_ERROR_INVALID_TEXT);
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char *dest = (char *)&pInst->words[pInst->wordCount];
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strncpy(dest, str, length);
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pInst->wordCount += (uint16_t)wordCount;
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return SPV_SUCCESS;
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}
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// TODO(dneto): This API is not powerful enough in the case that the
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// number and type of operands are not known until partway through parsing
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// the operation. This happens when enum operands might have different number
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// of operands, or with extended instructions.
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spv_operand_type_t spvBinaryOperandInfo(const uint32_t word,
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const uint16_t operandIndex,
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const spv_opcode_desc opcodeEntry,
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const spv_operand_table operandTable,
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spv_operand_desc *pOperandEntry) {
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spv_operand_type_t type;
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if (operandIndex < opcodeEntry->numTypes) {
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// NOTE: Do operand table lookup to set operandEntry if successful
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uint16_t index = operandIndex - 1;
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type = opcodeEntry->operandTypes[index];
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spv_operand_desc entry = nullptr;
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if (!spvOperandTableValueLookup(operandTable, type, word, &entry)) {
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if (SPV_OPERAND_TYPE_NONE != entry->operandTypes[0]) {
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*pOperandEntry = entry;
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}
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}
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} else if (*pOperandEntry) {
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// NOTE: Use specified operand entry operand type for this word
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uint16_t index = operandIndex - opcodeEntry->numTypes;
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type = (*pOperandEntry)->operandTypes[index];
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} else if (OpSwitch == opcodeEntry->opcode) {
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// NOTE: OpSwitch is a special case which expects a list of paired extra
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// operands
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assert(0 &&
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"This case is previously untested, remove this assert and ensure it "
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"is behaving correctly!");
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uint16_t lastIndex = opcodeEntry->numTypes - 1;
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uint16_t index = lastIndex + ((operandIndex - lastIndex) % 2);
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type = opcodeEntry->operandTypes[index];
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} else {
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// NOTE: Default to last operand type in opcode entry
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uint16_t index = opcodeEntry->numTypes - 1;
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type = opcodeEntry->operandTypes[index];
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}
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return type;
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}
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spv_result_t spvBinaryDecodeOperand(
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const Op opcode, const spv_operand_type_t type, const uint32_t *words,
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const spv_endianness_t endian, const uint32_t options,
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const spv_operand_table operandTable, const spv_ext_inst_table extInstTable,
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spv_operand_pattern_t *pExpectedOperands, spv_ext_inst_type_t *pExtInstType,
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out_stream &stream, spv_position position, spv_diagnostic *pDiagnostic) {
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spvCheck(!words || !position, return SPV_ERROR_INVALID_POINTER);
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spvCheck(!pDiagnostic, return SPV_ERROR_INVALID_DIAGNOSTIC);
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bool print = spvIsInBitfield(SPV_BINARY_TO_TEXT_OPTION_PRINT, options);
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bool color =
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print && spvIsInBitfield(SPV_BINARY_TO_TEXT_OPTION_COLOR, options);
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uint64_t index = 0;
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switch (type) {
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case SPV_OPERAND_TYPE_ID:
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case SPV_OPERAND_TYPE_RESULT_ID:
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case SPV_OPERAND_TYPE_OPTIONAL_ID:
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case SPV_OPERAND_TYPE_ID_IN_OPTIONAL_TUPLE: {
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if (color) {
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if (type == SPV_OPERAND_TYPE_RESULT_ID) {
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stream.get() << clr::blue();
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} else {
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stream.get() << clr::yellow();
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}
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}
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stream.get() << "%" << spvFixWord(words[index], endian);
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stream.get() << ((color) ? clr::reset() : "");
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index++;
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position->index++;
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} break;
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case SPV_OPERAND_TYPE_LITERAL:
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case SPV_OPERAND_TYPE_OPTIONAL_LITERAL:
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case SPV_OPERAND_TYPE_LITERAL_IN_OPTIONAL_TUPLE: {
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// TODO: Need to support multiple word literals
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stream.get() << (color ? clr::red() : "");
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stream.get() << spvFixWord(words[index], endian);
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stream.get() << (color ? clr::reset() : "");
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index++;
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position->index++;
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} break;
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case SPV_OPERAND_TYPE_LITERAL_NUMBER: {
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// NOTE: Special case for extended instruction use
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if (OpExtInst == opcode) {
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spv_ext_inst_desc extInst;
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spvCheck(spvExtInstTableValueLookup(extInstTable, *pExtInstType,
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words[0], &extInst),
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DIAGNOSTIC << "Invalid extended instruction '" << words[0]
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<< "'.";
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return SPV_ERROR_INVALID_BINARY);
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spvPrependOperandTypes(extInst->operandTypes, pExpectedOperands);
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stream.get() << (color ? clr::red() : "");
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stream.get() << extInst->name;
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stream.get() << (color ? clr::reset() : "");
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} else {
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stream.get() << (color ? clr::red() : "");
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stream.get() << spvFixWord(words[index], endian);
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stream.get() << (color ? clr::reset() : "");
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}
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index++;
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position->index++;
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} break;
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case SPV_OPERAND_TYPE_LITERAL_STRING:
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case SPV_OPERAND_TYPE_OPTIONAL_LITERAL_STRING: {
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const char *string = (const char *)&words[index];
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uint64_t stringOperandCount = (strlen(string) / 4) + 1;
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// NOTE: Special case for extended instruction import
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if (OpExtInstImport == opcode) {
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*pExtInstType = spvExtInstImportTypeGet(string);
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spvCheck(SPV_EXT_INST_TYPE_NONE == *pExtInstType,
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DIAGNOSTIC << "Invalid extended instruction import'" << string
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<< "'.";
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return SPV_ERROR_INVALID_BINARY);
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}
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stream.get() << "\"";
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stream.get() << (color ? clr::green() : "");
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stream.get() << string;
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stream.get() << (color ? clr::reset() : "");
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stream.get() << "\"";
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index += stringOperandCount;
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position->index += stringOperandCount;
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} break;
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case SPV_OPERAND_TYPE_CAPABILITY:
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case SPV_OPERAND_TYPE_SOURCE_LANGUAGE:
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case SPV_OPERAND_TYPE_EXECUTION_MODEL:
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case SPV_OPERAND_TYPE_ADDRESSING_MODEL:
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case SPV_OPERAND_TYPE_MEMORY_MODEL:
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case SPV_OPERAND_TYPE_EXECUTION_MODE:
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case SPV_OPERAND_TYPE_OPTIONAL_EXECUTION_MODE:
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case SPV_OPERAND_TYPE_STORAGE_CLASS:
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case SPV_OPERAND_TYPE_DIMENSIONALITY:
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case SPV_OPERAND_TYPE_SAMPLER_ADDRESSING_MODE:
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case SPV_OPERAND_TYPE_SAMPLER_FILTER_MODE:
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case SPV_OPERAND_TYPE_FP_FAST_MATH_MODE:
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case SPV_OPERAND_TYPE_FP_ROUNDING_MODE:
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case SPV_OPERAND_TYPE_LINKAGE_TYPE:
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case SPV_OPERAND_TYPE_ACCESS_QUALIFIER:
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case SPV_OPERAND_TYPE_FUNCTION_PARAMETER_ATTRIBUTE:
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case SPV_OPERAND_TYPE_DECORATION:
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case SPV_OPERAND_TYPE_BUILT_IN:
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case SPV_OPERAND_TYPE_SELECTION_CONTROL:
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case SPV_OPERAND_TYPE_LOOP_CONTROL:
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case SPV_OPERAND_TYPE_FUNCTION_CONTROL:
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case SPV_OPERAND_TYPE_MEMORY_SEMANTICS:
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case SPV_OPERAND_TYPE_OPTIONAL_MEMORY_ACCESS:
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case SPV_OPERAND_TYPE_EXECUTION_SCOPE:
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case SPV_OPERAND_TYPE_GROUP_OPERATION:
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case SPV_OPERAND_TYPE_KERNEL_ENQ_FLAGS:
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case SPV_OPERAND_TYPE_KERNEL_PROFILING_INFO: {
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spv_operand_desc entry;
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spvCheck(
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spvOperandTableValueLookup(operandTable, type,
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spvFixWord(words[index], endian), &entry),
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DIAGNOSTIC << "Invalid " << spvOperandTypeStr(type) << " operand '"
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<< words[index] << "'.";
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return SPV_ERROR_INVALID_TEXT);
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stream.get() << entry->name;
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// Prepare to accept operands to this operand, if needed.
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spvPrependOperandTypes(entry->operandTypes, pExpectedOperands);
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index++;
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position->index++;
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} break;
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default: {
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DIAGNOSTIC << "Invalid binary operand '" << type << "'";
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return SPV_ERROR_INVALID_BINARY;
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}
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}
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return SPV_SUCCESS;
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}
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spv_result_t spvBinaryDecodeOpcode(
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spv_instruction_t *pInst, const spv_endianness_t endian,
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const uint32_t options, const spv_opcode_table opcodeTable,
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const spv_operand_table operandTable, const spv_ext_inst_table extInstTable,
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out_stream &stream, spv_position position, spv_diagnostic *pDiagnostic) {
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spvCheck(!pInst || !position, return SPV_ERROR_INVALID_POINTER);
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spvCheck(!opcodeTable || !operandTable || !extInstTable,
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return SPV_ERROR_INVALID_TABLE);
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spvCheck(!pDiagnostic, return SPV_ERROR_INVALID_DIAGNOSTIC);
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spv_position_t instructionStart = *position;
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uint16_t wordCount;
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Op opcode;
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spvOpcodeSplit(spvFixWord(pInst->words[0], endian), &wordCount, &opcode);
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spv_opcode_desc opcodeEntry;
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spvCheck(spvOpcodeTableValueLookup(opcodeTable, opcode, &opcodeEntry),
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DIAGNOSTIC << "Invalid Opcode '" << opcode << "'.";
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return SPV_ERROR_INVALID_BINARY);
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// See if there are enough required words.
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// Some operands in the operand types are optional or could be zero length.
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// The optional and zero length opeands must be at the end of the list.
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if (opcodeEntry->numTypes > wordCount &&
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!spvOperandIsOptional(opcodeEntry->operandTypes[wordCount])) {
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uint16_t numRequired;
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for (numRequired = 0;
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numRequired < opcodeEntry->numTypes &&
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!spvOperandIsOptional(opcodeEntry->operandTypes[numRequired]);
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numRequired++)
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;
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DIAGNOSTIC << "Invalid instruction Op" << opcodeEntry->name
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<< " word count '" << wordCount << "', expected at least '"
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<< numRequired << "'.";
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return SPV_ERROR_INVALID_BINARY;
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}
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std::stringstream no_result_id_strstream;
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out_stream no_result_id_stream(no_result_id_strstream);
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const int16_t result_id_index = spvOpcodeResultIdIndex(opcodeEntry);
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no_result_id_stream.get() << "Op" << opcodeEntry->name;
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position->index++;
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// Maintains the ordered list of expected operand types.
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// For many instructions we only need the {numTypes, operandTypes}
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// entries in opcodeEntry. However, sometimes we need to modify
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// the list as we parse the operands. This occurs when an operand
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// has its own logical operands (such as the LocalSize operand for
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// ExecutionMode), or for extended instructions that may have their
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// own operands depending on the selected extended instruction.
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spv_operand_pattern_t expectedOperands(
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opcodeEntry->operandTypes,
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opcodeEntry->operandTypes + opcodeEntry->numTypes);
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for (uint16_t index = 1; index < wordCount; ++index) {
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const uint64_t currentPosIndex = position->index;
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spvCheck(expectedOperands.empty(),
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DIAGNOSTIC << "Invalid instruction Op" << opcodeEntry->name
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<< " starting at word " << instructionStart.index
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<< ": "
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<< " expected no more operands after " << index
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<< " words, but word count is " << wordCount << ".";
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return SPV_ERROR_INVALID_BINARY;);
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spv_operand_type_t type = spvTakeFirstMatchableOperand(&expectedOperands);
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if (result_id_index != index - 1) no_result_id_strstream << " ";
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spvCheck(
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spvBinaryDecodeOperand(
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opcodeEntry->opcode, type, pInst->words + index, endian, options,
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operandTable, extInstTable, &expectedOperands, &pInst->extInstType,
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(result_id_index == index - 1 ? stream : no_result_id_stream),
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position, pDiagnostic),
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DIAGNOSTIC << "UNEXPLAINED ERROR";
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return SPV_ERROR_INVALID_BINARY);
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if (result_id_index == index - 1) stream.get() << " = ";
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index += (uint16_t)(position->index - currentPosIndex - 1);
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}
|
|
// TODO(dneto): There's an opportunity for a more informative message.
|
|
spvCheck(!expectedOperands.empty() &&
|
|
!spvOperandIsOptional(expectedOperands.front()),
|
|
DIAGNOSTIC << "Invalid instruction Op" << opcodeEntry->name
|
|
<< " starting at word " << instructionStart.index << ": "
|
|
<< " expected more operands after " << wordCount
|
|
<< " words.";
|
|
return SPV_ERROR_INVALID_BINARY;);
|
|
|
|
stream.get() << no_result_id_strstream.str();
|
|
|
|
return SPV_SUCCESS;
|
|
}
|
|
|
|
spv_result_t spvBinaryToText(uint32_t *code, const uint64_t wordCount,
|
|
const uint32_t options,
|
|
const spv_opcode_table opcodeTable,
|
|
const spv_operand_table operandTable,
|
|
const spv_ext_inst_table extInstTable,
|
|
spv_text *pText, spv_diagnostic *pDiagnostic) {
|
|
spv_binary_t binary = {code, wordCount};
|
|
|
|
spv_position_t position = {};
|
|
spvCheck(!binary.code || !binary.wordCount, DIAGNOSTIC
|
|
<< "Binary stream is empty.";
|
|
return SPV_ERROR_INVALID_BINARY);
|
|
spvCheck(!opcodeTable || !operandTable || !extInstTable,
|
|
return SPV_ERROR_INVALID_TABLE);
|
|
spvCheck(pText && spvIsInBitfield(SPV_BINARY_TO_TEXT_OPTION_PRINT, options),
|
|
return SPV_ERROR_INVALID_POINTER);
|
|
spvCheck(!pText && !spvIsInBitfield(SPV_BINARY_TO_TEXT_OPTION_PRINT, options),
|
|
return SPV_ERROR_INVALID_POINTER);
|
|
spvCheck(!pDiagnostic, return SPV_ERROR_INVALID_DIAGNOSTIC);
|
|
|
|
spv_endianness_t endian;
|
|
spvCheck(spvBinaryEndianness(&binary, &endian),
|
|
DIAGNOSTIC << "Invalid SPIR-V magic number '" << std::hex
|
|
<< binary.code[0] << "'.";
|
|
return SPV_ERROR_INVALID_BINARY);
|
|
|
|
spv_header_t header;
|
|
spvCheck(spvBinaryHeaderGet(&binary, endian, &header),
|
|
DIAGNOSTIC << "Invalid SPIR-V header.";
|
|
return SPV_ERROR_INVALID_BINARY);
|
|
|
|
bool print = spvIsInBitfield(SPV_BINARY_TO_TEXT_OPTION_PRINT, options);
|
|
bool color =
|
|
print && spvIsInBitfield(SPV_BINARY_TO_TEXT_OPTION_COLOR, options);
|
|
|
|
std::stringstream sstream;
|
|
out_stream stream(sstream);
|
|
if (print) {
|
|
stream = out_stream();
|
|
}
|
|
|
|
if (color) {
|
|
stream.get() << clr::grey();
|
|
}
|
|
stream.get() << "; SPIR-V\n"
|
|
<< "; Version: " << header.version << "\n"
|
|
<< "; Generator: " << spvGeneratorStr(header.generator) << "\n"
|
|
<< "; Bound: " << header.bound << "\n"
|
|
<< "; Schema: " << header.schema << "\n";
|
|
if (color) {
|
|
stream.get() << clr::reset();
|
|
}
|
|
|
|
const uint32_t *words = binary.code;
|
|
position.index = SPV_INDEX_INSTRUCTION;
|
|
spv_ext_inst_type_t extInstType = SPV_EXT_INST_TYPE_NONE;
|
|
while (position.index < binary.wordCount) {
|
|
uint64_t index = position.index;
|
|
uint16_t wordCount;
|
|
Op opcode;
|
|
spvOpcodeSplit(spvFixWord(words[position.index], endian), &wordCount,
|
|
&opcode);
|
|
|
|
spv_instruction_t inst = {};
|
|
inst.extInstType = extInstType;
|
|
spvInstructionCopy(&words[position.index], opcode, wordCount, endian,
|
|
&inst);
|
|
|
|
spvCheck(
|
|
spvBinaryDecodeOpcode(&inst, endian, options, opcodeTable, operandTable,
|
|
extInstTable, stream, &position, pDiagnostic),
|
|
return SPV_ERROR_INVALID_BINARY);
|
|
extInstType = inst.extInstType;
|
|
|
|
spvCheck((index + wordCount) != position.index,
|
|
DIAGNOSTIC << "Invalid word count.";
|
|
return SPV_ERROR_INVALID_BINARY);
|
|
|
|
stream.get() << "\n";
|
|
}
|
|
|
|
if (!print) {
|
|
size_t length = sstream.str().size();
|
|
char *str = new char[length + 1];
|
|
spvCheck(!str, return SPV_ERROR_OUT_OF_MEMORY);
|
|
strncpy(str, sstream.str().c_str(), length + 1);
|
|
spv_text text = new spv_text_t();
|
|
spvCheck(!text, return SPV_ERROR_OUT_OF_MEMORY);
|
|
text->str = str;
|
|
text->length = length;
|
|
*pText = text;
|
|
}
|
|
|
|
return SPV_SUCCESS;
|
|
}
|
|
|
|
void spvBinaryDestroy(spv_binary binary) {
|
|
spvCheck(!binary, return );
|
|
if (binary->code) {
|
|
delete[] binary->code;
|
|
}
|
|
delete binary;
|
|
}
|