X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;ds=sidebyside;f=elfcpp%2Felfcpp.h;h=339faadaf3f2b34b60996589b8b336a794241913;hb=63ffd7c9131c0e9723016d33cf8d435cc508d02b;hp=0b2c871d1939d159f35d577ff46e187d3a0c3ebf;hpb=f77507bd9894eb70b02c2c5ac4adc209443c53c0;p=deliverable%2Fbinutils-gdb.git

diff --git a/elfcpp/elfcpp.h b/elfcpp/elfcpp.h
index 0b2c871d19..339faadaf3 100644
--- a/elfcpp/elfcpp.h
+++ b/elfcpp/elfcpp.h
@@ -1,6 +1,6 @@
 // elfcpp.h -- main header file for elfcpp    -*- C++ -*-
 
-// Copyright 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
+// Copyright (C) 2006-2020 Free Software Foundation, Inc.
 // Written by Ian Lance Taylor <iant@google.com>.
 
 // This file is part of elfcpp.
@@ -129,10 +129,9 @@ enum ELFOSABI
   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,
@@ -174,7 +173,7 @@ enum EM
   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,
@@ -247,7 +246,7 @@ enum EM
   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,
@@ -269,6 +268,9 @@ enum EM
   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.
@@ -288,7 +290,7 @@ enum EM
   // 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).
@@ -302,6 +304,15 @@ enum EM
   // 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
@@ -356,6 +367,9 @@ enum SHT
   // 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.
@@ -388,6 +402,17 @@ enum SHT
   // 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
@@ -407,6 +432,7 @@ enum SHF
   SHF_OS_NONCONFORMING = 0x100,
   SHF_GROUP = 0x200,
   SHF_TLS = 0x400,
+  SHF_COMPRESSED = 0x800,
   SHF_MASKOS = 0x0ff00000,
   SHF_MASKPROC = 0xf0000000,
 
@@ -422,10 +448,24 @@ enum SHF
   // 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.
 
@@ -463,7 +503,21 @@ enum PT
   // 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.
@@ -502,8 +556,12 @@ enum STT
   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,
@@ -710,6 +768,9 @@ enum DT
   // 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,
 
@@ -717,11 +778,108 @@ enum DT
   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
@@ -775,6 +933,7 @@ const int VER_NEED_CURRENT = 1;
 
 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.
 
@@ -825,7 +984,9 @@ enum
   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.
@@ -840,6 +1001,21 @@ enum
   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.
@@ -863,6 +1039,8 @@ struct Elf_sizes
   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.
@@ -1138,6 +1316,82 @@ class Shdr_write
   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>
@@ -1454,6 +1708,172 @@ class Rela_write
   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.