// elfcpp.h -- main header file for elfcpp -*- C++ -*-
-// Copyright 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
+// Copyright (C) 2006-2019 Free Software Foundation, Inc.
// Written by Ian Lance Taylor <iant@google.com>.
// This file is part of elfcpp.
// combinations without any restriction coming from the use of this
// file. (The Library Public License restrictions do apply in other
// respects; for example, they cover modification of the file, and
-/// distribution when not linked into a combined executable.)
+// distribution when not linked into a combined executable.)
// This program is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of
ELFOSABI_NONE = 0,
ELFOSABI_HPUX = 1,
ELFOSABI_NETBSD = 2,
- // ELFOSABI_LINUX is not listed in the ELF standard.
+ ELFOSABI_GNU = 3,
+ // ELFOSABI_LINUX is an alias for ELFOSABI_GNU.
ELFOSABI_LINUX = 3,
- // ELFOSABI_HURD is not listed in the ELF standard.
- ELFOSABI_HURD = 4,
ELFOSABI_SOLARIS = 6,
ELFOSABI_AIX = 7,
ELFOSABI_IRIX = 8,
EM_386 = 3,
EM_68K = 4,
EM_88K = 5,
- // 6 used to be EM_486
+ EM_IAMCU = 6,
EM_860 = 7,
EM_MIPS = 8,
EM_S370 = 9,
EM_MN10300 = 89,
EM_MN10200 = 90,
EM_PJ = 91,
- EM_OPENRISC = 92,
+ EM_OR1K = 92,
EM_ARC_A5 = 93,
EM_XTENSA = 94,
EM_VIDEOCORE = 95,
EM_UNICORE = 110,
EM_ALTERA_NIOS2 = 113,
EM_CRX = 114,
+ EM_TI_PRU = 144,
+ EM_AARCH64 = 183,
+ EM_TILEGX = 191,
// The Morph MT.
EM_MT = 0x2530,
// DLX.
// Old AVR objects used 0x1057 (EM_AVR is correct).
// Old MSP430 objects used 0x1059 (EM_MSP430 is correct).
// Old FR30 objects used 0x3330 (EM_FR30 is correct).
- // Old OpenRISC objects used 0x3426 and 0x8472 (EM_OPENRISC is correct).
+ // Old OpenRISC objects used 0x3426 and 0x8472 (EM_OR1K is correct).
// Old D10V objects used 0x7650 (EM_D10V is correct).
// Old D30V objects used 0x7676 (EM_D30V is correct).
// Old IP2X objects used 0x8217 (EM_IP2K is correct).
// Old MN10200 objects used 0xdead (EM_MN10200 is correct).
};
+// A special value found in the Ehdr e_phnum field.
+
+enum
+{
+ // Number of program segments stored in sh_info field of first
+ // section headre.
+ PN_XNUM = 0xffff
+};
+
// Special section indices.
enum
// The remaining values are not in the standard.
// Incremental build data.
SHT_GNU_INCREMENTAL_INPUTS = 0x6fff4700,
+ SHT_GNU_INCREMENTAL_SYMTAB = 0x6fff4701,
+ SHT_GNU_INCREMENTAL_RELOCS = 0x6fff4702,
+ SHT_GNU_INCREMENTAL_GOT_PLT = 0x6fff4703,
// Object attributes.
SHT_GNU_ATTRIBUTES = 0x6ffffff5,
// GNU style dynamic hash table.
// x86_64 unwind information.
SHT_X86_64_UNWIND = 0x70000001,
+ // MIPS-specific section types.
+ // Section contains register usage information.
+ SHT_MIPS_REGINFO = 0x70000006,
+ // Section contains miscellaneous options.
+ SHT_MIPS_OPTIONS = 0x7000000d,
+ // ABI related flags section.
+ SHT_MIPS_ABIFLAGS = 0x7000002a,
+
+ // AARCH64-specific section type.
+ SHT_AARCH64_ATTRIBUTES = 0x70000003,
+
// Link editor is to sort the entries in this section based on the
// address specified in the associated symbol table entry.
- SHT_ORDERED = 0x7fffffff,
+ SHT_ORDERED = 0x7fffffff
};
// The valid bit flags found in the Shdr sh_flags field.
SHF_OS_NONCONFORMING = 0x100,
SHF_GROUP = 0x200,
SHF_TLS = 0x400,
+ SHF_COMPRESSED = 0x800,
SHF_MASKOS = 0x0ff00000,
SHF_MASKPROC = 0xf0000000,
// is also set, or if relocations exist against the section.
SHF_EXCLUDE = 0x80000000,
+ // Section with data that is GP relative addressable.
+ SHF_MIPS_GPREL = 0x10000000,
+
// x86_64 specific large section.
SHF_X86_64_LARGE = 0x10000000
};
+// Values which appear in the first Elf_WXword of the section data
+// of a SHF_COMPRESSED section.
+enum
+{
+ ELFCOMPRESS_ZLIB = 1,
+ ELFCOMPRESS_LOOS = 0x60000000,
+ ELFCOMPRESS_HIOS = 0x6fffffff,
+ ELFCOMPRESS_LOPROC = 0x70000000,
+ ELFCOMPRESS_HIPROC = 0x7fffffff,
+};
+
// Bit flags which appear in the first 32-bit word of the section data
// of a SHT_GROUP section.
// Platform architecture compatibility information
PT_ARM_ARCHEXT = 0x70000000,
// Exception unwind tables
- PT_ARM_EXIDX = 0x70000001
+ PT_ARM_EXIDX = 0x70000001,
+ // Register usage information. Identifies one .reginfo section.
+ PT_MIPS_REGINFO =0x70000000,
+ // Runtime procedure table.
+ PT_MIPS_RTPROC = 0x70000001,
+ // .MIPS.options section.
+ PT_MIPS_OPTIONS = 0x70000002,
+ // .MIPS.abiflags section.
+ PT_MIPS_ABIFLAGS = 0x70000003,
+ // Platform architecture compatibility information
+ PT_AARCH64_ARCHEXT = 0x70000000,
+ // Exception unwind tables
+ PT_AARCH64_UNWIND = 0x70000001,
+ // 4k page table size
+ PT_S390_PGSTE = 0x70000000,
};
// The valid bit flags found in the Phdr p_flags field.
STT_FILE = 4,
STT_COMMON = 5,
STT_TLS = 6,
- STT_LOOS = 10,
+
+ // GNU extension: symbol value points to a function which is called
+ // at runtime to determine the final value of the symbol.
STT_GNU_IFUNC = 10,
+
+ STT_LOOS = 10,
STT_HIOS = 12,
STT_LOPROC = 13,
STT_HIPROC = 15,
// ARM: a THUMB function. This is not defined in ARM ELF Specification but
// used by the GNU tool-chain.
- STT_ARM_TFUNC = 13,
+ STT_ARM_TFUNC = 13
};
inline STB
DT_FINI_ARRAYSZ = 28,
DT_RUNPATH = 29,
DT_FLAGS = 30,
+
+ // This is used to mark a range of dynamic tags. It is not really
+ // a tag value.
DT_ENCODING = 32,
+
DT_PREINIT_ARRAY = 32,
DT_PREINIT_ARRAYSZ = 33,
DT_LOOS = 0x6000000d,
// Specify the value of _GLOBAL_OFFSET_TABLE_.
DT_PPC_GOT = 0x70000000,
+ // Specify whether various optimisations are possible.
+ DT_PPC_OPT = 0x70000001,
+
// Specify the start of the .glink section.
DT_PPC64_GLINK = 0x70000000,
DT_PPC64_OPD = 0x70000001,
DT_PPC64_OPDSZ = 0x70000002,
+ // Specify whether various optimisations are possible.
+ DT_PPC64_OPT = 0x70000003,
+
// The index of an STT_SPARC_REGISTER symbol within the DT_SYMTAB
// symbol table. One dynamic entry exists for every STT_SPARC_REGISTER
// symbol in the symbol table.
DT_SPARC_REGISTER = 0x70000001,
+ // MIPS specific dynamic array tags.
+ // 32 bit version number for runtime linker interface.
+ DT_MIPS_RLD_VERSION = 0x70000001,
+ // Time stamp.
+ DT_MIPS_TIME_STAMP = 0x70000002,
+ // Checksum of external strings and common sizes.
+ DT_MIPS_ICHECKSUM = 0x70000003,
+ // Index of version string in string table.
+ DT_MIPS_IVERSION = 0x70000004,
+ // 32 bits of flags.
+ DT_MIPS_FLAGS = 0x70000005,
+ // Base address of the segment.
+ DT_MIPS_BASE_ADDRESS = 0x70000006,
+ // ???
+ DT_MIPS_MSYM = 0x70000007,
+ // Address of .conflict section.
+ DT_MIPS_CONFLICT = 0x70000008,
+ // Address of .liblist section.
+ DT_MIPS_LIBLIST = 0x70000009,
+ // Number of local global offset table entries.
+ DT_MIPS_LOCAL_GOTNO = 0x7000000a,
+ // Number of entries in the .conflict section.
+ DT_MIPS_CONFLICTNO = 0x7000000b,
+ // Number of entries in the .liblist section.
+ DT_MIPS_LIBLISTNO = 0x70000010,
+ // Number of entries in the .dynsym section.
+ DT_MIPS_SYMTABNO = 0x70000011,
+ // Index of first external dynamic symbol not referenced locally.
+ DT_MIPS_UNREFEXTNO = 0x70000012,
+ // Index of first dynamic symbol in global offset table.
+ DT_MIPS_GOTSYM = 0x70000013,
+ // Number of page table entries in global offset table.
+ DT_MIPS_HIPAGENO = 0x70000014,
+ // Address of run time loader map, used for debugging.
+ DT_MIPS_RLD_MAP = 0x70000016,
+ // Delta C++ class definition.
+ DT_MIPS_DELTA_CLASS = 0x70000017,
+ // Number of entries in DT_MIPS_DELTA_CLASS.
+ DT_MIPS_DELTA_CLASS_NO = 0x70000018,
+ // Delta C++ class instances.
+ DT_MIPS_DELTA_INSTANCE = 0x70000019,
+ // Number of entries in DT_MIPS_DELTA_INSTANCE.
+ DT_MIPS_DELTA_INSTANCE_NO = 0x7000001a,
+ // Delta relocations.
+ DT_MIPS_DELTA_RELOC = 0x7000001b,
+ // Number of entries in DT_MIPS_DELTA_RELOC.
+ DT_MIPS_DELTA_RELOC_NO = 0x7000001c,
+ // Delta symbols that Delta relocations refer to.
+ DT_MIPS_DELTA_SYM = 0x7000001d,
+ // Number of entries in DT_MIPS_DELTA_SYM.
+ DT_MIPS_DELTA_SYM_NO = 0x7000001e,
+ // Delta symbols that hold class declarations.
+ DT_MIPS_DELTA_CLASSSYM = 0x70000020,
+ // Number of entries in DT_MIPS_DELTA_CLASSSYM.
+ DT_MIPS_DELTA_CLASSSYM_NO = 0x70000021,
+ // Flags indicating information about C++ flavor.
+ DT_MIPS_CXX_FLAGS = 0x70000022,
+ // Pixie information (???).
+ DT_MIPS_PIXIE_INIT = 0x70000023,
+ // Address of .MIPS.symlib
+ DT_MIPS_SYMBOL_LIB = 0x70000024,
+ // The GOT index of the first PTE for a segment
+ DT_MIPS_LOCALPAGE_GOTIDX = 0x70000025,
+ // The GOT index of the first PTE for a local symbol
+ DT_MIPS_LOCAL_GOTIDX = 0x70000026,
+ // The GOT index of the first PTE for a hidden symbol
+ DT_MIPS_HIDDEN_GOTIDX = 0x70000027,
+ // The GOT index of the first PTE for a protected symbol
+ DT_MIPS_PROTECTED_GOTIDX = 0x70000028,
+ // Address of `.MIPS.options'.
+ DT_MIPS_OPTIONS = 0x70000029,
+ // Address of `.interface'.
+ DT_MIPS_INTERFACE = 0x7000002a,
+ // ???
+ DT_MIPS_DYNSTR_ALIGN = 0x7000002b,
+ // Size of the .interface section.
+ DT_MIPS_INTERFACE_SIZE = 0x7000002c,
+ // Size of rld_text_resolve function stored in the GOT.
+ DT_MIPS_RLD_TEXT_RESOLVE_ADDR = 0x7000002d,
+ // Default suffix of DSO to be added by rld on dlopen() calls.
+ DT_MIPS_PERF_SUFFIX = 0x7000002e,
+ // Size of compact relocation section (O32).
+ DT_MIPS_COMPACT_SIZE = 0x7000002f,
+ // GP value for auxiliary GOTs.
+ DT_MIPS_GP_VALUE = 0x70000030,
+ // Address of auxiliary .dynamic.
+ DT_MIPS_AUX_DYNAMIC = 0x70000031,
+ // Address of the base of the PLTGOT.
+ DT_MIPS_PLTGOT = 0x70000032,
+ // Points to the base of a writable PLT.
+ DT_MIPS_RWPLT = 0x70000034,
+ // Relative offset of run time loader map, used for debugging.
+ DT_MIPS_RLD_MAP_REL = 0x70000035,
+
DT_AUXILIARY = 0x7ffffffd,
DT_USED = 0x7ffffffe,
DT_FILTER = 0x7fffffff
DF_1_INTERPOSE = 0x400,
DF_1_NODEFLIB = 0x800,
DF_1_NODUMP = 0x1000,
- DF_1_CONLFAT = 0x2000,
+ DF_1_CONLFAT = 0x2000
};
// Version numbers which appear in the vd_version field of a Verdef
const int VER_FLG_BASE = 0x1;
const int VER_FLG_WEAK = 0x2;
+const int VER_FLG_INFO = 0x4;
// Special constants found in the SHT_GNU_versym entries.
NT_GNU_BUILD_ID = 3,
// The version of gold used to link. Th descriptor is just a
// string.
- NT_GNU_GOLD_VERSION = 4
+ NT_GNU_GOLD_VERSION = 4,
+ // Program property note, as described in "Linux Extensions to the gABI".
+ NT_GNU_PROPERTY_TYPE_0 = 5
};
// The OS values which may appear in word 0 of a NT_GNU_ABI_TAG note.
ELF_NOTE_OS_SYLLABLE = 5
};
+// Program property types for NT_GNU_PROPERTY_TYPE_0.
+
+enum
+{
+ GNU_PROPERTY_STACK_SIZE = 1,
+ GNU_PROPERTY_NO_COPY_ON_PROTECTED = 2,
+ GNU_PROPERTY_LOPROC = 0xc0000000,
+ GNU_PROPERTY_X86_ISA_1_USED = 0xc0000000,
+ GNU_PROPERTY_X86_ISA_1_NEEDED = 0xc0000001,
+ GNU_PROPERTY_X86_FEATURE_1_AND = 0xc0000002,
+ GNU_PROPERTY_HIPROC = 0xdfffffff,
+ GNU_PROPERTY_LOUSER = 0xe0000000,
+ GNU_PROPERTY_HIUSER = 0xffffffff
+};
+
} // End namespace elfcpp.
// Include internal details after defining the types.
static const int phdr_size = sizeof(internal::Phdr_data<size>);
// Size of ELF section header.
static const int shdr_size = sizeof(internal::Shdr_data<size>);
+ // Size of ELF compression header.
+ static const int chdr_size = sizeof(internal::Chdr_data<size>);
// Size of ELF symbol table entry.
static const int sym_size = sizeof(internal::Sym_data<size>);
// Sizes of ELF reloc entries.
internal::Shdr_data<size>* p_;
};
+// Accessor class for an ELF compression header.
+
+template<int size, bool big_endian>
+class Chdr
+{
+ public:
+ Chdr(const unsigned char* p)
+ : p_(reinterpret_cast<const internal::Chdr_data<size>*>(p))
+ { }
+
+ template<typename File>
+ Chdr(File* file, typename File::Location loc)
+ : p_(reinterpret_cast<const internal::Chdr_data<size>*>(
+ file->view(loc.file_offset, loc.data_size).data()))
+ { }
+
+ Elf_Word
+ get_ch_type() const
+ { return Convert<size, big_endian>::convert_host(this->p_->ch_type); }
+
+ typename Elf_types<size>::Elf_WXword
+ get_ch_size() const
+ { return Convert<size, big_endian>::convert_host(this->p_->ch_size); }
+
+ typename Elf_types<size>::Elf_WXword
+ get_ch_addralign() const
+ { return
+ Convert<size, big_endian>::convert_host(this->p_->ch_addralign); }
+
+ private:
+ const internal::Chdr_data<size>* p_;
+};
+
+// Write class for an ELF compression header.
+
+template<int size, bool big_endian>
+class Chdr_write
+{
+ public:
+ Chdr_write(unsigned char* p)
+ : p_(reinterpret_cast<internal::Chdr_data<size>*>(p))
+ { }
+
+ void
+ put_ch_type(typename Elf_types<size>::Elf_WXword v)
+ { this->p_->ch_type = Convert<size, big_endian>::convert_host(v); }
+
+ void
+ put_ch_size(typename Elf_types<size>::Elf_WXword v)
+ { this->p_->ch_size = Convert<size, big_endian>::convert_host(v); }
+
+ void
+ put_ch_addralign(typename Elf_types<size>::Elf_WXword v)
+ { this->p_->ch_addralign = Convert<size, big_endian>::convert_host(v); }
+
+ void
+ put_ch_reserved(Elf_Word);
+
+ private:
+ internal::Chdr_data<size>* p_;
+};
+
+template<>
+inline void
+elfcpp::Chdr_write<64, true>::put_ch_reserved(Elf_Word v)
+{
+ this->p_->ch_reserved = v;
+}
+
+template<>
+inline void
+elfcpp::Chdr_write<64, false>::put_ch_reserved(Elf_Word v)
+{
+ this->p_->ch_reserved = v;
+}
+
// Accessor class for an ELF segment header.
template<int size, bool big_endian>
internal::Rela_data<size>* p_;
};
+// MIPS-64 has a non-standard relocation layout.
+
+template<bool big_endian>
+class Mips64_rel
+{
+ public:
+ Mips64_rel(const unsigned char* p)
+ : p_(reinterpret_cast<const internal::Mips64_rel_data*>(p))
+ { }
+
+ template<typename File>
+ Mips64_rel(File* file, typename File::Location loc)
+ : p_(reinterpret_cast<const internal::Mips64_rel_data*>(
+ file->view(loc.file_offset, loc.data_size).data()))
+ { }
+
+ typename Elf_types<64>::Elf_Addr
+ get_r_offset() const
+ { return Convert<64, big_endian>::convert_host(this->p_->r_offset); }
+
+ Elf_Word
+ get_r_sym() const
+ { return Convert<32, big_endian>::convert_host(this->p_->r_sym); }
+
+ unsigned char
+ get_r_ssym() const
+ { return this->p_->r_ssym; }
+
+ unsigned char
+ get_r_type() const
+ { return this->p_->r_type; }
+
+ unsigned char
+ get_r_type2() const
+ { return this->p_->r_type2; }
+
+ unsigned char
+ get_r_type3() const
+ { return this->p_->r_type3; }
+
+ private:
+ const internal::Mips64_rel_data* p_;
+};
+
+template<bool big_endian>
+class Mips64_rel_write
+{
+ public:
+ Mips64_rel_write(unsigned char* p)
+ : p_(reinterpret_cast<internal::Mips64_rel_data*>(p))
+ { }
+
+ void
+ put_r_offset(typename Elf_types<64>::Elf_Addr v)
+ { this->p_->r_offset = Convert<64, big_endian>::convert_host(v); }
+
+ void
+ put_r_sym(Elf_Word v)
+ { this->p_->r_sym = Convert<32, big_endian>::convert_host(v); }
+
+ void
+ put_r_ssym(unsigned char v)
+ { this->p_->r_ssym = v; }
+
+ void
+ put_r_type(unsigned char v)
+ { this->p_->r_type = v; }
+
+ void
+ put_r_type2(unsigned char v)
+ { this->p_->r_type2 = v; }
+
+ void
+ put_r_type3(unsigned char v)
+ { this->p_->r_type3 = v; }
+
+ private:
+ internal::Mips64_rel_data* p_;
+};
+
+template<bool big_endian>
+class Mips64_rela
+{
+ public:
+ Mips64_rela(const unsigned char* p)
+ : p_(reinterpret_cast<const internal::Mips64_rela_data*>(p))
+ { }
+
+ template<typename File>
+ Mips64_rela(File* file, typename File::Location loc)
+ : p_(reinterpret_cast<const internal::Mips64_rela_data*>(
+ file->view(loc.file_offset, loc.data_size).data()))
+ { }
+
+ typename Elf_types<64>::Elf_Addr
+ get_r_offset() const
+ { return Convert<64, big_endian>::convert_host(this->p_->r_offset); }
+
+ Elf_Word
+ get_r_sym() const
+ { return Convert<32, big_endian>::convert_host(this->p_->r_sym); }
+
+ unsigned char
+ get_r_ssym() const
+ { return this->p_->r_ssym; }
+
+ unsigned char
+ get_r_type() const
+ { return this->p_->r_type; }
+
+ unsigned char
+ get_r_type2() const
+ { return this->p_->r_type2; }
+
+ unsigned char
+ get_r_type3() const
+ { return this->p_->r_type3; }
+
+ typename Elf_types<64>::Elf_Swxword
+ get_r_addend() const
+ { return Convert<64, big_endian>::convert_host(this->p_->r_addend); }
+
+ private:
+ const internal::Mips64_rela_data* p_;
+};
+
+template<bool big_endian>
+class Mips64_rela_write
+{
+ public:
+ Mips64_rela_write(unsigned char* p)
+ : p_(reinterpret_cast<internal::Mips64_rela_data*>(p))
+ { }
+
+ void
+ put_r_offset(typename Elf_types<64>::Elf_Addr v)
+ { this->p_->r_offset = Convert<64, big_endian>::convert_host(v); }
+
+ void
+ put_r_sym(Elf_Word v)
+ { this->p_->r_sym = Convert<32, big_endian>::convert_host(v); }
+
+ void
+ put_r_ssym(unsigned char v)
+ { this->p_->r_ssym = v; }
+
+ void
+ put_r_type(unsigned char v)
+ { this->p_->r_type = v; }
+
+ void
+ put_r_type2(unsigned char v)
+ { this->p_->r_type2 = v; }
+
+ void
+ put_r_type3(unsigned char v)
+ { this->p_->r_type3 = v; }
+
+ void
+ put_r_addend(typename Elf_types<64>::Elf_Swxword v)
+ { this->p_->r_addend = Convert<64, big_endian>::convert_host(v); }
+
+ private:
+ internal::Mips64_rela_data* p_;
+};
+
// Accessor classes for entries in the ELF SHT_DYNAMIC section aka
// PT_DYNAMIC segment.
projects / deliverable / binutils-gdb.git / blobdiff