* mips.h: New file

	* elfcpp.h (SHT_MIPS_REGINFO): New enums for processor-specific flags.
	(SHF_MIPS_GPREL): Likewise.
	(PT_MIPS_REGINFO, PT_MIPS_RTPROC, PT_MIPS_OPTIONS): Likewise.
	(DT_MIPS_RLD_VERSION, DT_MIPS_TIME_STAMP, DT_MIPS_ICHECKSUM,
	 DT_MIPS_IVERSION, DT_MIPS_FLAGS, DT_MIPS_BASE_ADDRESS, DT_MIPS_MSYM,
	 DT_MIPS_CONFLICT, DT_MIPS_LIBLIST, DT_MIPS_LOCAL_GOTNO,
	 DT_MIPS_CONFLICTNO, DT_MIPS_LIBLISTNO, DT_MIPS_SYMTABNO,
	 DT_MIPS_UNREFEXTNO, DT_MIPS_GOTSYM, DT_MIPS_HIPAGENO, DT_MIPS_RLD_MAP,
	 DT_MIPS_DELTA_CLASS, DT_MIPS_DELTA_CLASS_NO, DT_MIPS_DELTA_INSTANCE,
	 DT_MIPS_DELTA_INSTANCE_NO, DT_MIPS_DELTA_RELOC, DT_MIPS_DELTA_RELOC_NO,
	 DT_MIPS_DELTA_SYM, DT_MIPS_DELTA_SYM_NO, DT_MIPS_DELTA_CLASSSYM,
	 DT_MIPS_DELTA_CLASSSYM_NO, DT_MIPS_CXX_FLAGS, DT_MIPS_PIXIE_INIT,
	 DT_MIPS_SYMBOL_LIB, DT_MIPS_LOCALPAGE_GOTIDX, DT_MIPS_LOCAL_GOTIDX,
	 DT_MIPS_HIDDEN_GOTIDX, DT_MIPS_PROTECTED_GOTIDX, DT_MIPS_OPTIONS,
	 DT_MIPS_INTERFACE, DT_MIPS_DYNSTR_ALIGN, DT_MIPS_INTERFACE_SIZE,
	 DT_MIPS_RLD_TEXT_RESOLVE_ADDR, DT_MIPS_PERF_SUFFIX,
	 DT_MIPS_COMPACT_SIZE, DT_MIPS_GP_VALUE, DT_MIPS_AUX_DYNAMIC,
	 DT_MIPS_PLTGOT, DT_MIPS_RWPLT): Likewise.

3 files changed, 395 insertions, 1 deletions

diff --git a/elfcpp/ChangeLog b/elfcpp/ChangeLog
index f750c4b..ea6ed39 100644
--- a/elfcpp/ChangeLog
+++ b/elfcpp/ChangeLog
@@ -1,3 +1,25 @@
+2012-01-27  Aleksandar Simeonov  <asimeonov@mips.com>
+
+	* mips.h: New file
+	* elfcpp.h (SHT_MIPS_REGINFO): New enums for processor-specific flags.
+	(SHF_MIPS_GPREL): Likewise.
+	(PT_MIPS_REGINFO, PT_MIPS_RTPROC, PT_MIPS_OPTIONS): Likewise.
+	(DT_MIPS_RLD_VERSION, DT_MIPS_TIME_STAMP, DT_MIPS_ICHECKSUM,
+	 DT_MIPS_IVERSION, DT_MIPS_FLAGS, DT_MIPS_BASE_ADDRESS, DT_MIPS_MSYM,
+	 DT_MIPS_CONFLICT, DT_MIPS_LIBLIST, DT_MIPS_LOCAL_GOTNO,
+	 DT_MIPS_CONFLICTNO, DT_MIPS_LIBLISTNO, DT_MIPS_SYMTABNO,
+	 DT_MIPS_UNREFEXTNO, DT_MIPS_GOTSYM, DT_MIPS_HIPAGENO, DT_MIPS_RLD_MAP,
+	 DT_MIPS_DELTA_CLASS, DT_MIPS_DELTA_CLASS_NO, DT_MIPS_DELTA_INSTANCE,
+	 DT_MIPS_DELTA_INSTANCE_NO, DT_MIPS_DELTA_RELOC, DT_MIPS_DELTA_RELOC_NO,
+	 DT_MIPS_DELTA_SYM, DT_MIPS_DELTA_SYM_NO, DT_MIPS_DELTA_CLASSSYM,
+	 DT_MIPS_DELTA_CLASSSYM_NO, DT_MIPS_CXX_FLAGS, DT_MIPS_PIXIE_INIT,
+	 DT_MIPS_SYMBOL_LIB, DT_MIPS_LOCALPAGE_GOTIDX, DT_MIPS_LOCAL_GOTIDX,
+	 DT_MIPS_HIDDEN_GOTIDX, DT_MIPS_PROTECTED_GOTIDX, DT_MIPS_OPTIONS,
+	 DT_MIPS_INTERFACE, DT_MIPS_DYNSTR_ALIGN, DT_MIPS_INTERFACE_SIZE,
+	 DT_MIPS_RLD_TEXT_RESOLVE_ADDR, DT_MIPS_PERF_SUFFIX,
+	 DT_MIPS_COMPACT_SIZE, DT_MIPS_GP_VALUE, DT_MIPS_AUX_DYNAMIC,
+	 DT_MIPS_PLTGOT, DT_MIPS_RWPLT): Likewise.
+
 2012-01-27  Ian Lance Taylor  <iant@google.com>
 
 	* elfcpp.h (STT_GNU_IFUNC): Add comment.
diff --git a/elfcpp/elfcpp.h b/elfcpp/elfcpp.h
index 7258f5f..e4f9f1f 100644
--- a/elfcpp/elfcpp.h
+++ b/elfcpp/elfcpp.h
@@ -400,6 +400,10 @@ enum SHT
   // x86_64 unwind information.
   SHT_X86_64_UNWIND = 0x70000001,
 
+  //MIPS-specific section types.
+  // Register info section
+  SHT_MIPS_REGINFO = 0x70000006,
+
   // Link editor is to sort the entries in this section based on the
   // address specified in the associated symbol table entry.
   SHT_ORDERED = 0x7fffffff
@@ -434,6 +438,9 @@ 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
 };
@@ -475,7 +482,13 @@ 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
 };
 
 // The valid bit flags found in the Phdr p_flags field.
@@ -738,6 +751,98 @@ enum DT
   // 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,
+
   DT_AUXILIARY = 0x7ffffffd,
   DT_USED = 0x7ffffffe,
   DT_FILTER = 0x7fffffff
diff --git a/elfcpp/mips.h b/elfcpp/mips.h
new file mode 100644
index 0000000..8c2d8f45
--- /dev/null
+++ b/elfcpp/mips.h
@@ -0,0 +1,267 @@
+// mips.h -- ELF definitions specific to EM_MIPS  -*- C++ -*-
+
+// Copyright 2012 Free Software Foundation, Inc.
+// Written by Aleksandar Simeonov <aleksandar.simeonov@rt-rk.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
+// (at your option) any later version.
+
+// In addition to the permissions in the GNU Library General Public
+// License, the Free Software Foundation gives you unlimited
+// permission to link the compiled version of this file into
+// combinations with other programs, and to distribute those
+// 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.)
+
+// This program is distributed in the hope that it will be useful, but
+// WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Library General Public License for more details.
+
+// You should have received a copy of the GNU Library General Public
+// License along with this program; if not, write to the Free Software
+// Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
+// 02110-1301, USA.
+
+#ifndef ELFCPP_MIPS_H
+#define ELFCPP_MIPS_H
+
+// Documentation for the MIPS relocs is taken from
+//   http://math-atlas.sourceforge.net/devel/assembly/mipsabi32.pdf
+
+namespace elfcpp
+{
+
+//
+// MIPS Relocation Codes
+//
+
+enum
+{
+  R_MIPS_NONE = 0,
+  R_MIPS_16 = 1,
+  R_MIPS_32 = 2,
+  R_MIPS_REL32 = 3,
+  R_MIPS_26 = 4,
+  R_MIPS_HI16 = 5,
+  R_MIPS_LO16 = 6,
+  R_MIPS_GPREL16 = 7,
+  R_MIPS_LITERAL = 8,
+  R_MIPS_GOT16 = 9,
+  R_MIPS_PC16 = 10,
+  R_MIPS_CALL16 = 11,
+  R_MIPS_GPREL32 = 12,
+  R_MIPS_UNUSED1 = 13,
+  R_MIPS_UNUSED2 = 14,
+  R_MIPS_UNUSED3 = 15,
+  R_MIPS_SHIFT5 = 16,
+  R_MIPS_SHIFT6 = 17,
+  R_MIPS_64 = 18,
+  R_MIPS_GOT_DISP = 19,
+  R_MIPS_GOT_PAGE = 20,
+  R_MIPS_GOT_OFST = 21,
+  R_MIPS_GOT_HI16 = 22,
+  R_MIPS_GOT_LO16 = 23,
+  R_MIPS_SUB = 24,
+  R_MIPS_INSERT_A = 25,		// Empty relocation
+  R_MIPS_INSERT_B = 26,		// Empty relocation
+  R_MIPS_DELETE = 27,		// Empty relocation
+  R_MIPS_HIGHER = 28,
+  R_MIPS_HIGHEST = 29,
+  R_MIPS_CALL_HI16 = 30,
+  R_MIPS_CALL_LO16 = 31,
+  R_MIPS_SCN_DISP = 32,
+  R_MIPS_REL16 = 33,		// Empty relocation
+  R_MIPS_ADD_IMMEDIATE = 34,	// Empty relocation
+  R_MIPS_PJUMP = 35,		// Empty relocation
+  R_MIPS_RELGOT = 36,		// Empty relocation
+  R_MIPS_JALR = 37,
+  R_MIPS_TLS_DTPMOD32 = 38,
+  R_MIPS_TLS_DTPREL32 = 39,
+  R_MIPS_TLS_DTPMOD64 = 40,	// Empty relocation
+  R_MIPS_TLS_DTPREL64 = 41,	// Empty relocation
+  R_MIPS_TLS_GD = 42,
+  R_MIPS_TLS_LDM = 43,
+  R_MIPS_TLS_DTPREL_HI16 = 44,
+  R_MIPS_TLS_DTPREL_LO16 = 45,
+  R_MIPS_TLS_GOTTPREL = 46,
+  R_MIPS_TLS_TPREL32 = 47,
+  R_MIPS_TLS_TPREL64 = 48,	// Empty relocation
+  R_MIPS_TLS_TPREL_HI16 = 49,
+  R_MIPS_TLS_TPREL_LO16 = 50,
+  R_MIPS_GLOB_DAT = 51,
+  R_MIPS16_26 = 100,
+  R_MIPS16_GPREL = 101,
+  R_MIPS16_GOT16 = 102,
+  R_MIPS16_CALL16 = 103,
+  R_MIPS16_HI16 = 104,
+  R_MIPS16_LO16 = 105,
+  R_MIPS_COPY = 126,
+  R_MIPS_JUMP_SLOT = 127,
+  R_MIPS_PC32 = 248,
+  R_MIPS_GNU_REL16_S2 = 250,
+  R_MIPS_GNU_VTINHERIT = 253,
+  R_MIPS_GNU_VTENTRY = 254
+};
+
+// Processor specific flags for the ELF header e_flags field.  */
+enum
+{
+  // At least one .noreorder directive appears in the source.
+  EF_MIPS_NOREORDER = 0x00000001,
+  // File contains position independent code.
+  EF_MIPS_PIC = 0x00000002,
+  // Code in file uses the standard calling sequence for calling
+  // position independent code.
+  EF_MIPS_CPIC = 0x00000004,
+  // ???  Unknown flag, set in IRIX 6's BSDdup2.o in libbsd.a.
+  EF_MIPS_XGOT = 0x00000008,
+  // Code in file uses UCODE (obsolete)
+  EF_MIPS_UCODE = 0x00000010,
+  // Code in file uses new ABI (-n32 on Irix 6).
+  EF_MIPS_ABI2 = 0x00000020,
+  // Process the .MIPS.options section first by ld
+  EF_MIPS_OPTIONS_FIRST = 0x00000080,
+  // Architectural Extensions used by this file
+  EF_MIPS_ARCH_ASE = 0x0f000000,
+  // Use MDMX multimedia extensions
+  EF_MIPS_ARCH_ASE_MDMX = 0x08000000,
+  // Use MIPS-16 ISA extensions
+  EF_MIPS_ARCH_ASE_M16 = 0x04000000,
+  // Use MICROMIPS ISA extensions.
+  EF_MIPS_ARCH_ASE_MICROMIPS = 0x02000000,
+  // Indicates code compiled for a 64-bit machine in 32-bit mode.
+  // (regs are 32-bits wide.)
+  EF_MIPS_32BITMODE = 0x00000100,
+  // MIPS dynamic
+  EF_MIPS_DYNAMIC = 0x40
+};
+
+// Machine variant if we know it.  This field was invented at Cygnus,
+// but it is hoped that other vendors will adopt it.  If some standard
+// is developed, this code should be changed to follow it.
+enum
+{
+  EF_MIPS_MACH = 0x00FF0000,
+
+// Cygnus is choosing values between 80 and 9F;
+// 00 - 7F should be left for a future standard;
+// the rest are open.
+
+  E_MIPS_MACH_3900 = 0x00810000,
+  E_MIPS_MACH_4010 = 0x00820000,
+  E_MIPS_MACH_4100 = 0x00830000,
+  E_MIPS_MACH_4650 = 0x00850000,
+  E_MIPS_MACH_4120 = 0x00870000,
+  E_MIPS_MACH_4111 = 0x00880000,
+  E_MIPS_MACH_SB1 = 0x008a0000,
+  E_MIPS_MACH_OCTEON = 0x008b0000,
+  E_MIPS_MACH_XLR = 0x008c0000,
+  E_MIPS_MACH_OCTEON2 = 0x008d0000,
+  E_MIPS_MACH_5400 = 0x00910000,
+  E_MIPS_MACH_5500 = 0x00980000,
+  E_MIPS_MACH_9000 = 0x00990000,
+  E_MIPS_MACH_LS2E = 0x00A00000,
+  E_MIPS_MACH_LS2F = 0x00A10000,
+  E_MIPS_MACH_LS3A = 0x00A20000,
+};
+
+// MIPS architecture
+enum
+{
+  // Four bit MIPS architecture field.
+  EF_MIPS_ARCH = 0xf0000000,
+  // -mips1 code.
+  E_MIPS_ARCH_1 = 0x00000000,
+  // -mips2 code.
+  E_MIPS_ARCH_2 = 0x10000000,
+  // -mips3 code.
+  E_MIPS_ARCH_3 = 0x20000000,
+  // -mips4 code.
+  E_MIPS_ARCH_4 = 0x30000000,
+  // -mips5 code.
+  E_MIPS_ARCH_5 = 0x40000000,
+  // -mips32 code.
+  E_MIPS_ARCH_32 = 0x50000000,
+  // -mips64 code.
+  E_MIPS_ARCH_64 = 0x60000000,
+  // -mips32r2 code.
+  E_MIPS_ARCH_32R2 = 0x70000000,
+  // -mips64r2 code.
+  E_MIPS_ARCH_64R2 = 0x80000000,
+};
+
+enum
+{
+  // Mask to extract ABI version, not really a flag value.
+  EF_MIPS_ABI = 0x0000F000,
+
+  // The original o32 abi.
+  E_MIPS_ABI_O32 = 0x00001000,
+  // O32 extended to work on 64 bit architectures
+  E_MIPS_ABI_O64 = 0x00002000,
+  // EABI in 32 bit mode
+  E_MIPS_ABI_EABI32 = 0x00003000,
+  // EABI in 64 bit mode
+  E_MIPS_ABI_EABI64 = 0x00004000,
+};
+
+// Dynamic section MIPS flags
+enum
+{
+  // None
+  RHF_NONE = 0x00000000,
+  // Use shortcut pointers
+  RHF_QUICKSTART = 0x00000001,
+  // Hash size not power of two
+  RHF_NOTPOT = 0x00000002,
+  // Ignore LD_LIBRARY_PATH
+  RHF_NO_LIBRARY_REPLACEMENT = 0x00000004
+};
+
+// Special values for the st_other field in the symbol table.
+enum
+{
+  // Two topmost bits denote the MIPS ISA for .text symbols:
+  // + 00 -- standard MIPS code,
+  // + 10 -- microMIPS code,
+  // + 11 -- MIPS16 code; requires the following two bits to be set too.
+  // Note that one of the MIPS16 bits overlaps with STO_MIPS_PIC.
+  STO_MIPS_ISA = 0xc0,
+
+  // The MIPS psABI was updated in 2008 with support for PLTs and copy
+  // relocs.  There are therefore two types of nonzero SHN_UNDEF functions:
+  // PLT entries and traditional MIPS lazy binding stubs.  We mark the former
+  // with STO_MIPS_PLT to distinguish them from the latter.
+  STO_MIPS_PLT = 0x8,
+
+  // This value is used to mark PIC functions in an object that mixes
+  // PIC and non-PIC.  Note that this bit overlaps with STO_MIPS16,
+  // although MIPS16 symbols are never considered to be MIPS_PIC.
+  STO_MIPS_PIC = 0x20,
+
+  // This value is used for a mips16 .text symbol.
+  STO_MIPS16 = 0xf0,
+
+  // This value is used for a microMIPS .text symbol.  To distinguish from
+  // STO_MIPS16, we set top two bits to be 10 to denote STO_MICROMIPS.  The
+  // mask is STO_MIPS_ISA.
+  STO_MICROMIPS  = 0x80
+};
+
+// Values for base offsets for thread-local storage
+enum
+{
+  TP_OFFSET = 0x7000,
+  DTP_OFFSET = 0x8000
+};
+
+} // End namespace elfcpp.
+
+#endif // !defined(ELFCPP_MIPS_H)