// elfcpp.h -- main header file for elfcpp -*- C++ -*-
-// Copyright 2006, 2007, Free Software Foundation, Inc.
+// Copyright 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
// Written by Ian Lance Taylor <iant@google.com>.
// This file is part of elfcpp.
-
+
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU Library General Public License
// as published by the Free Software Foundation; either version 2, or
// 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
// 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
SHN_ABS = 0xfff1,
SHN_COMMON = 0xfff2,
SHN_XINDEX = 0xffff,
- SHN_HIRESERVE = 0xffff
+ SHN_HIRESERVE = 0xffff,
+
+ // Provide for initial and final section ordering in conjunction
+ // with the SHF_LINK_ORDER and SHF_ORDERED section flags.
+ SHN_BEFORE = 0xff00,
+ SHN_AFTER = 0xff01,
+
+ // x86_64 specific large common symbol.
+ SHN_X86_64_LCOMMON = 0xff02
};
// The valid values found in the Shdr sh_type field.
SHT_LOUSER = 0x80000000,
SHT_HIUSER = 0xffffffff,
// 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.
+ SHT_GNU_HASH = 0x6ffffff6,
// List of prelink dependencies.
SHT_GNU_LIBLIST = 0x6ffffff7,
// Versions defined by file.
// Symbol versions,
SHT_SUNW_versym = 0x6fffffff,
SHT_GNU_versym = 0x6fffffff,
+
+ SHT_SPARC_GOTDATA = 0x70000000,
+
+ // ARM-specific section types.
+ // Exception Index table.
+ SHT_ARM_EXIDX = 0x70000001,
+ // BPABI DLL dynamic linking pre-emption map.
+ SHT_ARM_PREEMPTMAP = 0x70000002,
+ // Object file compatibility attributes.
+ SHT_ARM_ATTRIBUTES = 0x70000003,
+ // Support for debugging overlaid programs.
+ SHT_ARM_DEBUGOVERLAY = 0x70000004,
+ SHT_ARM_OVERLAYSECTION = 0x70000005,
+
+ // x86_64 unwind information.
+ SHT_X86_64_UNWIND = 0x70000001,
+
+ // Link editor is to sort the entries in this section based on the
+ // address specified in the associated symbol table entry.
+ SHT_ORDERED = 0x7fffffff
};
// The valid bit flags found in the Shdr sh_flags field.
SHF_GROUP = 0x200,
SHF_TLS = 0x400,
SHF_MASKOS = 0x0ff00000,
- SHF_MASKPROC = 0xf0000000
+ SHF_MASKPROC = 0xf0000000,
+
+ // Indicates this section requires ordering in relation to
+ // other sections of the same type. Ordered sections are
+ // combined within the section pointed to by the sh_link entry.
+ // The sh_info values SHN_BEFORE and SHN_AFTER imply that the
+ // sorted section is to precede or follow, respectively, all
+ // other sections in the set being ordered.
+ SHF_ORDERED = 0x40000000,
+ // This section is excluded from input to the link-edit of an
+ // executable or shared object. This flag is ignored if SHF_ALLOC
+ // is also set, or if relocations exist against the section.
+ SHF_EXCLUDE = 0x80000000,
+
+ // x86_64 specific large section.
+ SHF_X86_64_LARGE = 0x10000000
};
// Bit flags which appear in the first 32-bit word of the section data
// Stack flags.
PT_GNU_STACK = 0x6474e551,
// Read only after relocation.
- PT_GNU_RELRO = 0x6474e552
+ PT_GNU_RELRO = 0x6474e552,
+ // Platform architecture compatibility information
+ PT_ARM_ARCHEXT = 0x70000000,
+ // Exception unwind tables
+ PT_ARM_EXIDX = 0x70000001
};
// The valid bit flags found in the Phdr p_flags field.
STB_GLOBAL = 1,
STB_WEAK = 2,
STB_LOOS = 10,
+ STB_GNU_UNIQUE = 10,
STB_HIOS = 12,
STB_LOPROC = 13,
STB_HIPROC = 15
STT_COMMON = 5,
STT_TLS = 6,
STT_LOOS = 10,
+ STT_GNU_IFUNC = 10,
STT_HIOS = 12,
STT_LOPROC = 13,
- STT_HIPROC = 15
+ STT_HIPROC = 15,
+
+ // The section type that must be used for register symbols on
+ // Sparc. These symbols initialize a global register.
+ STT_SPARC_REGISTER = 13,
+
+ // ARM: a THUMB function. This is not defined in ARM ELF Specification but
+ // used by the GNU tool-chain.
+ 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 = 33,
+
+ DT_PREINIT_ARRAY = 32,
DT_PREINIT_ARRAYSZ = 33,
DT_LOOS = 0x6000000d,
DT_HIOS = 0x6ffff000,
DT_VERSYM = 0x6ffffff0,
+ // Specify the value of _GLOBAL_OFFSET_TABLE_.
+ DT_PPC_GOT = 0x70000000,
+
+ // Specify the start of the .glink section.
+ DT_PPC64_GLINK = 0x70000000,
+
+ // Specify the start and size of the .opd section.
+ DT_PPC64_OPD = 0x70000001,
+ DT_PPC64_OPDSZ = 0x70000002,
+
+ // 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,
+
DT_AUXILIARY = 0x7ffffffd,
DT_USED = 0x7ffffffe,
DT_FILTER = 0x7fffffff
DF_STATIC_TLS = 0x10
};
+// Flags found in the DT_FLAGS_1 dynamic element.
+
+enum DF_1
+{
+ DF_1_NOW = 0x1,
+ DF_1_GLOBAL = 0x2,
+ DF_1_GROUP = 0x4,
+ DF_1_NODELETE = 0x8,
+ DF_1_LOADFLTR = 0x10,
+ DF_1_INITFIRST = 0x20,
+ DF_1_NOOPEN = 0x40,
+ DF_1_ORIGIN = 0x80,
+ DF_1_DIRECT = 0x100,
+ DF_1_TRANS = 0x200,
+ DF_1_INTERPOSE = 0x400,
+ DF_1_NODEFLIB = 0x800,
+ DF_1_NODUMP = 0x1000,
+ DF_1_CONLFAT = 0x2000
+};
+
// Version numbers which appear in the vd_version field of a Verdef
// structure.
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.
const int VERSYM_VERSION = 0x7fff;
+// Note descriptor type codes for notes in a non-core file with an
+// empty name.
+
+enum
+{
+ // A version string.
+ NT_VERSION = 1,
+ // An architecture string.
+ NT_ARCH = 2
+};
+
+// Note descriptor type codes for notes in a non-core file with the
+// name "GNU".
+
+enum
+{
+ // The minimum ABI level. This is used by the dynamic linker to
+ // describe the minimal kernel version on which a shared library may
+ // be used. Th value should be four words. Word 0 is an OS
+ // descriptor (see below). Word 1 is the major version of the ABI.
+ // Word 2 is the minor version. Word 3 is the subminor version.
+ NT_GNU_ABI_TAG = 1,
+ // Hardware capabilities information. Word 0 is the number of
+ // entries. Word 1 is a bitmask of enabled entries. The rest of
+ // the descriptor is a series of entries, where each entry is a
+ // single byte followed by a nul terminated string. The byte gives
+ // the bit number to test if enabled in the bitmask.
+ NT_GNU_HWCAP = 2,
+ // The build ID as set by the linker's --build-id option. The
+ // format of the descriptor depends on the build ID style.
+ NT_GNU_BUILD_ID = 3,
+ // The version of gold used to link. Th descriptor is just a
+ // string.
+ NT_GNU_GOLD_VERSION = 4
+};
+
+// The OS values which may appear in word 0 of a NT_GNU_ABI_TAG note.
+
+enum
+{
+ ELF_NOTE_OS_LINUX = 0,
+ ELF_NOTE_OS_GNU = 1,
+ ELF_NOTE_OS_SOLARIS2 = 2,
+ ELF_NOTE_OS_FREEBSD = 3,
+ ELF_NOTE_OS_NETBSD = 4,
+ ELF_NOTE_OS_SYLLABLE = 5
+};
+
} // End namespace elfcpp.
// Include internal details after defining the types.
void
put_e_type(Elf_Half v)
{ this->p_->e_type = Convert<16, big_endian>::convert_host(v); }
-
+
void
put_e_machine(Elf_Half v)
{ this->p_->e_machine = Convert<16, big_endian>::convert_host(v); }
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