Danylo Lytovchenko
161 lines
6.1 KiB
C++
161 lines
6.1 KiB
C++
/*
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Copyright (C) 2001-2015 by Serge Lamikhov-Center
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Modifications Copyright (c) 2020 - 2021 Advanced Micro Devices, Inc.
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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*/
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#ifndef ELFIO_UTILS_HPP
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#define ELFIO_UTILS_HPP
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#define ELFIO_GET_ACCESS(TYPE, NAME, FIELD) \
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TYPE get_##NAME() const { return (*convertor)(FIELD); }
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#define ELFIO_SET_ACCESS(TYPE, NAME, FIELD) \
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void set_##NAME(TYPE value) { \
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FIELD = value; \
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FIELD = (*convertor)(FIELD); \
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}
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#define ELFIO_GET_SET_ACCESS(TYPE, NAME, FIELD) \
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TYPE get_##NAME() const { return (*convertor)(FIELD); } \
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void set_##NAME(TYPE value) { \
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FIELD = value; \
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FIELD = (*convertor)(FIELD); \
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}
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#define ELFIO_GET_ACCESS_DECL(TYPE, NAME) virtual TYPE get_##NAME() const = 0
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#define ELFIO_SET_ACCESS_DECL(TYPE, NAME) virtual void set_##NAME(TYPE value) = 0
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#define ELFIO_GET_SET_ACCESS_DECL(TYPE, NAME) \
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virtual TYPE get_##NAME() const = 0; \
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virtual void set_##NAME(TYPE value) = 0
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namespace amd {
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namespace ELFIO {
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//------------------------------------------------------------------------------
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class endianess_convertor {
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public:
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//------------------------------------------------------------------------------
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endianess_convertor() { need_conversion = false; }
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//------------------------------------------------------------------------------
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void setup(unsigned char elf_file_encoding) {
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need_conversion = (elf_file_encoding != get_host_encoding());
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}
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//------------------------------------------------------------------------------
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uint64_t operator()(uint64_t value) const {
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if (!need_conversion) {
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return value;
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}
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value = ((value & 0x00000000000000FFull) << 56) | ((value & 0x000000000000FF00ull) << 40) |
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((value & 0x0000000000FF0000ull) << 24) | ((value & 0x00000000FF000000ull) << 8) |
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((value & 0x000000FF00000000ull) >> 8) | ((value & 0x0000FF0000000000ull) >> 24) |
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((value & 0x00FF000000000000ull) >> 40) | ((value & 0xFF00000000000000ull) >> 56);
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return value;
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}
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//------------------------------------------------------------------------------
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int64_t operator()(int64_t value) const {
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if (!need_conversion) {
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return value;
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}
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return (int64_t)(*this)((uint64_t)value);
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}
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//------------------------------------------------------------------------------
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uint32_t operator()(uint32_t value) const {
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if (!need_conversion) {
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return value;
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}
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value = ((value & 0x000000FF) << 24) | ((value & 0x0000FF00) << 8) |
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((value & 0x00FF0000) >> 8) | ((value & 0xFF000000) >> 24);
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return value;
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}
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//------------------------------------------------------------------------------
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int32_t operator()(int32_t value) const {
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if (!need_conversion) {
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return value;
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}
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return (int32_t)(*this)((uint32_t)value);
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}
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//------------------------------------------------------------------------------
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uint16_t operator()(uint16_t value) const {
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if (!need_conversion) {
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return value;
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}
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value = ((value & 0x00FF) << 8) | ((value & 0xFF00) >> 8);
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return value;
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}
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//------------------------------------------------------------------------------
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int16_t operator()(int16_t value) const {
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if (!need_conversion) {
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return value;
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}
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return (int16_t)(*this)((uint16_t)value);
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}
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//------------------------------------------------------------------------------
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int8_t operator()(int8_t value) const { return value; }
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//------------------------------------------------------------------------------
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uint8_t operator()(uint8_t value) const { return value; }
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//------------------------------------------------------------------------------
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private:
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//------------------------------------------------------------------------------
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unsigned char get_host_encoding() const {
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static const int tmp = 1;
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if (1 == *(const char*)&tmp) {
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return ELFDATA2LSB;
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} else {
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return ELFDATA2MSB;
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}
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}
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//------------------------------------------------------------------------------
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private:
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bool need_conversion;
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};
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//------------------------------------------------------------------------------
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inline uint32_t elf_hash(const unsigned char* name) {
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uint32_t h = 0, g;
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while (*name) {
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h = (h << 4) + *name++;
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g = h & 0xf0000000;
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if (g != 0) h ^= g >> 24;
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h &= ~g;
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}
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return h;
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}
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} // namespace ELFIO
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} // namespace amd
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#endif // ELFIO_UTILS_HPP
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