Samir Jindel
36cd2e22d4
Also use the function labels for Dwarf in Assembly snapshots to avoid creating duplicate labels. Fixes https://github.com/dart-lang/sdk/issues/38978 Issue https://github.com/dart-lang/sdk/issues/38526 Change-Id: Icafd3d3a86381990ec8097397a21b16ad4a7a766 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/122150 Reviewed-by: Ryan Macnak <rmacnak@google.com> Commit-Queue: Samir Jindel <sjindel@google.com>
172 lines
3.9 KiB
C++
172 lines
3.9 KiB
C++
// Copyright (c) 2019, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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#ifndef RUNTIME_PLATFORM_ELF_H_
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#define RUNTIME_PLATFORM_ELF_H_
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#include "platform/globals.h"
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namespace dart {
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namespace elf {
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#pragma pack(push, 1)
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struct ElfHeader {
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uint8_t ident[16];
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uint16_t type;
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uint16_t machine;
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uint32_t version;
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#if defined(TARGET_ARCH_IS_32_BIT)
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uint32_t entry_point;
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uint32_t program_table_offset;
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uint32_t section_table_offset;
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#else
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uint64_t entry_point;
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uint64_t program_table_offset;
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uint64_t section_table_offset;
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#endif
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uint32_t flags;
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uint16_t header_size;
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uint16_t program_table_entry_size;
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uint16_t num_program_headers;
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uint16_t section_table_entry_size;
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uint16_t num_section_headers;
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uint16_t shstrtab_section_index;
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};
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enum class ProgramHeaderType : uint32_t {
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PT_LOAD = 1,
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PT_DYNAMIC = 2,
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PT_PHDR = 6,
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};
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struct ProgramHeader {
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#if defined(TARGET_ARCH_IS_32_BIT)
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ProgramHeaderType type;
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uint32_t file_offset;
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uint32_t memory_offset;
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uint32_t physical_memory_offset;
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uint32_t file_size;
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uint32_t memory_size;
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uint32_t flags;
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uint32_t alignment;
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#else
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ProgramHeaderType type;
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uint32_t flags;
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uint64_t file_offset;
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uint64_t memory_offset;
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uint64_t physical_memory_offset;
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uint64_t file_size;
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uint64_t memory_size;
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uint64_t alignment;
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#endif
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};
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struct SectionHeader {
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#if defined(TARGET_ARCH_IS_32_BIT)
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uint32_t name;
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uint32_t type;
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uint32_t flags;
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uint32_t memory_offset;
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uint32_t file_offset;
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uint32_t file_size;
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uint32_t link;
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uint32_t info;
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uint32_t alignment;
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uint32_t entry_size;
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#else
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uint32_t name;
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uint32_t type;
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uint64_t flags;
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uint64_t memory_offset;
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uint64_t file_offset;
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uint64_t file_size;
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uint32_t link;
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uint32_t info;
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uint64_t alignment;
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uint64_t entry_size;
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#endif
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};
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struct Symbol {
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#if defined(TARGET_ARCH_IS_32_BIT)
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uint32_t name;
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uint32_t value;
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uint32_t size;
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uint8_t info;
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uint8_t other; // Reserved by ELF.
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uint16_t section;
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#else
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uint32_t name;
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uint8_t info;
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uint8_t other; // Reserved by ELF.
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uint16_t section;
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uint64_t value;
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uint64_t size;
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#endif
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};
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#pragma pack(pop)
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static constexpr intptr_t ELFCLASS32 = 1;
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static constexpr intptr_t ELFCLASS64 = 2;
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static const intptr_t EI_DATA = 5;
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static const intptr_t ELFDATA2LSB = 1;
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static const intptr_t ELFOSABI_SYSV = 0;
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static const intptr_t ET_DYN = 3;
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static constexpr intptr_t EF_ARM_ABI_FLOAT_HARD = 0x00000400;
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static constexpr intptr_t EF_ARM_ABI_FLOAT_SOFT = 0x00000200;
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static constexpr intptr_t EF_ARM_ABI = 0x05000000;
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static constexpr intptr_t EM_386 = 3;
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static constexpr intptr_t EM_ARM = 40;
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static constexpr intptr_t EM_X86_64 = 62;
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static constexpr intptr_t EM_AARCH64 = 183;
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static const intptr_t EV_CURRENT = 1;
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static const intptr_t PF_X = 1;
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static const intptr_t PF_W = 2;
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static const intptr_t PF_R = 4;
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static const intptr_t SHT_PROGBITS = 1;
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static const intptr_t SHT_SYMTAB = 2;
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static const intptr_t SHT_STRTAB = 3;
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static const intptr_t SHT_HASH = 5;
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static const intptr_t SHT_DYNAMIC = 6;
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static const intptr_t SHT_DYNSYM = 11;
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static const intptr_t SHF_WRITE = 0x1;
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static const intptr_t SHF_ALLOC = 0x2;
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static const intptr_t SHF_EXECINSTR = 0x4;
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static const intptr_t SHN_UNDEF = 0;
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static const intptr_t STN_UNDEF = 0;
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static const intptr_t PT_LOAD = 1;
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static const intptr_t PT_DYNAMIC = 2;
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static const intptr_t PT_PHDR = 6;
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static const intptr_t STB_GLOBAL = 1;
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static const intptr_t STT_OBJECT = 1; // I.e., data.
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static const intptr_t STT_FUNC = 2;
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static const intptr_t DT_NULL = 0;
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static const intptr_t DT_HASH = 4;
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static const intptr_t DT_STRTAB = 5;
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static const intptr_t DT_SYMTAB = 6;
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static const intptr_t DT_STRSZ = 10;
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static const intptr_t DT_SYMENT = 11;
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} // namespace elf
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} // namespace dart
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#endif // RUNTIME_PLATFORM_ELF_H_
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