2009-05-27 Doug Kwan <dougkwan@google.com>

        * arm.h: New file.
        * elfcpp.h (enum SHT): Add ARM-specific special sections.
        (enum PT): Add ARM-specific section types.
        (enum SST): Add STT_ARM_TFUNC.

diff --git a/elfcpp/ChangeLog b/elfcpp/ChangeLog
index 43c75c0c6f21a073567a156449cac8df1b987d55..b1440257fbb0ed0344968a9e1d70bf385833afb1 100644 (file)
--- a/elfcpp/ChangeLog
+++ b/elfcpp/ChangeLog
@@ -1,3 +1,10 @@
+2009-05-27  Doug Kwan  <dougkwan@google.com>
+
+       * arm.h: New file.
+       * elfcpp.h (enum SHT): Add ARM-specific special sections.
+       (enum PT): Add ARM-specific section types.
+       (enum SST): Add STT_ARM_TFUNC.
+
 2009-04-30  Nick Clifton  <nickc@redhat.com>
 
        * elfcpp.h (enum STT): Add STT_GNU_IFUNC.

diff --git a/elfcpp/arm.h b/elfcpp/arm.h
new file mode 100644 (file)
index 0000000..7ad827a
--- /dev/null
+++ b/elfcpp/arm.h
@@ -0,0 +1,204 @@
+// arm.h -- ELF definitions specific to EM_ARM  -*- C++ -*-
+
+// Copyright 2009, Free Software Foundation, Inc.
+// Written by Doug Kwan <dougkwan@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
+// (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_ARM_H
+#define ELFCPP_ARM_H
+
+// The relocation type information is taken from:
+//
+//   ELF for the ARM Architecture
+//   Document number: ARM IHI 0044C, current through ABI release 2.07
+//   Date of Issue: 10th October, 2008
+//
+
+namespace elfcpp
+{
+
+//
+// ARM Relocations Codes
+//
+
+// Operation notes: 
+//   S: Address of the symbol.
+//   A: Addend for relocation.
+//   P: Address of the place being relocated.
+//   Pa: Adjusted address of the place being relocated (P & 0xfffffffc)
+//   T: is 1 if S has type STT_FUNC and the symbol addresses a Thumb
+//      instruction.Thumb-bit; it is 0 otherwise.
+//   B(S): Addressing origin of the output segment defining S.
+//   GOT_ORG: Addressing origin of the Global Offset Table.
+//   GOT(S): Address of the GOT entry for S.
+//
+
+enum
+{
+                               // Type         Class   Operation               
+                               // ------------------------------
+  R_ARM_NONE = 0,              // Static       Misc
+  R_ARM_PC24 = 1,              // Deprecated   ARM     ((S + A) | T) - P
+  R_ARM_ABS32 = 2,             // Static       Data    (S + A) | T
+  R_ARM_REL32 = 3,             // Static       Data    ((S + A) | T) - P
+  R_ARM_LDR_PC_G0 = 4,         // Static       ARM     S + A - P
+  R_ARM_ABS16 = 5,             // Static       Data    S + A
+  R_ARM_ABS12 = 6,             // Static       ARM     S + A
+  R_ARM_THM_ABS5 = 7,          // Static       Thumb16 S + A
+  R_ARM_ABS8 = 8,              // Static       Data    S + A
+  R_ARM_SBREL32 = 9,           // Static       Data    ((S + A) | T) - B(S)
+  R_ARM_THM_CALL = 10,         // Static       Thumb32 ((S + A) | T) - P
+  R_ARM_THM_PC8 = 11,          // Static       Thumb16
+  R_ARM_BREL_ADJ = 12,         // Dynamic      Data    DeltaB(S) + A
+  R_ARM_TLS_DESC = 13,         // Dynamic      Data
+  R_ARM_THM_SWI8 = 14,         // Obsolete
+  R_ARM_XPC25 = 15,            // Obsolete
+  R_ARM_THM_XPC22 = 16,                // Obsolete
+  R_ARM_TLS_DTPMOD32 = 17,     // Dynamic      Data    Module(S)
+  R_ARM_TLS_DTPOFF32 = 18,     // Dynamic      Data    S + A - TLS
+  R_ARM_TLS_TPOFF32 = 19,      // Dynamic      Data    S + A - tp
+  R_ARM_COPY = 20,             // Dynamic      Misc
+  R_ARM_GLOB_DAT = 21,         // Dynamic      Data    (S + A) | T
+  R_ARM_JUMP_SLOT = 22,                // Dynamic      Data    (S + A) | T
+  R_ARM_RELATIVE = 23,         // Dynamic      Data    B(S) + A
+  R_ARM_GOTOFF32 = 24,         // Static       Data    (((S + A) | T) - GOT_ORG
+  R_ARM_BASE_PREL = 25,                // Static       Data    B(S) + A - P
+  R_ARM_GOT_BREL = 26,         // Static       Data    GOT(S) + A - GOT_ORG
+  R_ARM_PLT32 = 27,            // Deprecated   ARM     ((S + A) | T) - P
+  R_ARM_CALL = 28,             // Static       ARM     ((S + A) | T) - P
+  R_ARM_JUMP24 = 29,           // Static       ARM     ((S + A) | T) - P
+  R_ARM_THM_JUMP24 = 30,       // Static       Thumb32 ((S + A) | T) - P
+  R_ARM_BASE_ABS = 31,         // Static       Data    B(S) + A
+  R_ARM_ALU_PCREL_7_0 = 32,    // Obsolete
+  R_ARM_ALU_PCREL_15_8 = 33,   // Obsolete
+  R_ARM_ALU_PCREL_23_15 = 34,  // Obsolete
+  R_ARM_LDR_SBREL_11_0_NC = 35,        // Deprecated   ARM     S + A - B(S)
+  R_ARM_ALU_SBREL_19_12_NC = 36,// Deprecated  ARM     S + A - B(S)
+  R_ARM_ALU_SBREL_27_20_CK = 37,// Deprecated  ARM     S + A - B(S)
+  R_ARM_TARGET1 = 38,          // Data         Misc    (S + A) | T or
+                               //                      ((S + A) | T) - P
+  R_ARM_SBREL31 = 39,          // Deprecated   Data    ((S + A) | T) - B(S)
+  R_ARM_V4BX = 40,             // Static       Misc 
+  R_ARM_TARGET2 = 41,          // Static       Misc
+  R_ARM_PREL31 = 42,           // Static       Data    ((S + A) | T) - P
+  R_ARM_MOVW_ABS_NC = 43,      // Static       ARM     (S + A) | T
+  R_ARM_MOVT_ABS = 44,         // Static       ARM     S + A
+  R_ARM_MOVW_PREL_NC = 45,     // Static       ARM     ((S + A) | T) - P
+  R_ARM_MOVT_PREL = 46,                // Static       ARM     S + A - P
+  R_ARM_THM_MOVW_ABS_NC = 47,  // Static       Thumb32 (S + A) | T
+  R_ARM_THM_MOVT_ABS = 48,     // Static       Thumb32 S + A - P
+  R_ARM_THM_MOVW_PREL_NC =  49,        // Static       Thumb32 ((S + A) | T) - P
+  R_ARM_THM_MOVT_PREL = 50,    // Static       Thumb32 S + A - P
+  R_ARM_THM_JUMP19 = 51,       // Static       Thumb32 ((S + A) | T) - P
+  R_ARM_THM_JUMP6 = 52,                // Static       Thumb16 S + A - P
+  R_ARM_THM_ALU_PREL_11_0 = 53,        // Static       Thumb32 ((S + A) | T) - Pa
+  R_ARM_THM_PC12 = 54,         // Static       Thumb32 S + A - Pa
+  R_ARM_ABS32_NOI = 55,                // Static       Data    S + A
+  R_ARM_REL32_NOI = 56,                // Static       Data    S + A - P
+  R_ARM_ALU_PC_G0_NC = 57,     // Static       ARM     ((S + A) | T) - P
+  R_ARM_ALU_PC_G0 = 58,                // Static       ARM     ((S + A) | T) - P
+  R_ARM_ALU_PC_G1_NC = 59,     // Static       ARM     ((S + A) | T) - P
+  R_ARM_ALU_PC_G1 = 60,                // Static       ARM     ((S + A) | T) - P
+  R_ARM_ALU_PC_G2 = 61,                // Static       ARM     ((S + A) | T) - P
+  R_ARM_LDR_PC_G1 = 62,                // Static       ARM     S + A - P
+  R_ARM_LDR_PC_G2 = 63,                // Static       ARM     S + A - P
+  R_ARM_LDRS_PC_G0 = 64,       // Static       ARM     S + A - P
+  R_ARM_LDRS_PC_G1 = 65,       // Static       ARM     S + A - P
+  R_ARM_LDRS_PC_G2 = 66,       // Static       ARM     S + A - P
+  R_ARM_LDC_PC_G0 = 67,                // Static       ARM     S + A - P
+  R_ARM_LDC_PC_G1 = 68,                // Static       ARM     S + A - P
+  R_ARM_LDC_PC_G2 = 69,                // Static       ARM     S + A - P
+  R_ARM_ALU_SB_G0_NC = 70,     // Static       ARM     ((S + A) | T) - B(S)
+  R_ARM_ALU_SB_G0 = 71,                // Static       ARM     ((S + A) | T) - B(S)
+  R_ARM_ALU_SB_G1_NC = 72,     // Static       ARM     ((S + A) | T) - B(S)
+  R_ARM_ALU_SB_G1 = 73,                // Static       ARM     ((S + A) | T) - B(S)
+  R_ARM_ALU_SB_G2 = 74,                // Static       ARM     ((S + A) | T) - B(S)
+  R_ARM_LDR_SB_G0 = 75,                // Static       ARM     S + A - B(S)
+  R_ARM_LDR_SB_G1 = 76,                // Static       ARM     S + A - B(S)
+  R_ARM_LDR_SB_G2 = 77,                // Static       ARM     S + A - B(S)
+  R_ARM_LDRS_SB_G0 = 78,       // Static       ARM     S + A - B(S)
+  R_ARM_LDRS_SB_G1 = 79,       // Static       ARM     S + A - B(S)
+  R_ARM_LDRS_SB_G2 = 80,       // Static       ARM     S + A - B(S)
+  R_ARM_LDC_SB_G0 = 81,                // Static       ARM     S + A - B(S)
+  R_ARM_LDC_SB_G1 = 82,                // Static       ARM     S + A - B(S)
+  R_ARM_LDC_SB_G2 = 83,                // Static       ARM     S + A - B(S)
+  R_ARM_MOVW_BREL_NC = 84,     // Static       ARM     ((S + A) | T) - B(S)
+  R_ARM_MOVT_BREL = 85,                // Static       ARM     S + A - B(S)
+  R_ARM_MOVW_BREL = 86,                // Static       ARM     ((S + A) | T) - B(S)
+  R_ARM_THM_MOVW_BREL_NC = 87, // Static       Thumb32 ((S + A) | T) - B(S)
+  R_ARM_THM_MOVT_BREL = 88,    // Static       Thumb32 S + A - B(S)
+  R_ARM_THM_MOVW_BREL = 89,    // Static       Thumb32 ((S + A) | T) - B(S)
+  R_ARM_TLS_GOTDESC = 90,      // Static       Data
+  R_ARM_TLS_CALL = 91,         // Static       ARM
+  R_ARM_TLS_DESCSEQ = 92,      // Static       ARM     TLS relaxation
+  R_ARM_THM_TLS_CALL = 93,     // Static       Thumb32
+  R_ARM_PLT32_ABS =  94,       // Static       Data    PLT(S) + A
+  R_ARM_GOT_ABS =  95,         // Static       Data    GOT(S) + A
+  R_ARM_GOT_PREL = 96,         // Static       Data    GOT(S) + A - P
+  R_ARM_GOT_BREL12 =  97,      // Static       ARM     GOT(S) + A - GOT_ORG
+  R_ARM_GOTOFF12 =  98,                // Static       ARM     S + A - GOT_ROG
+  R_ARM_GOTRELAX =  99,                // Static       Misc
+  R_ARM_GNU_VTENTRY = 100,     // Deprecated   Data
+  R_ARM_GNU_VTINHERIT = 101,   // Deprecated   Data
+  R_ARM_THM_JUMP11 = 102,      // Static       Thumb16 S + A - P
+  R_ARM_THM_JUMP8 = 103,       // Static       Thumb16 S + A - P
+  R_ARM_TLS_GD32 = 104,                // Static       Data    GOT(S) + A - P
+  R_ARM_TLS_LDM32 = 105,       // Static       Data    GOT(S) + A - P
+  R_ARM_TLS_LDO32 = 106,       // Static       Data    S + A - TLS
+  R_ARM_TLS_IE32 = 107,                // Static       Data    GOT(S) + A - P
+  R_ARM_TLS_LE32 = 108,                // Static       Data    S + A - tp
+  R_ARM_TLS_LDO12 = 109,       // Static       ARM     S + A - TLS
+  R_ARM_TLS_LE12 = 110,                // Static       ARM     S + A - tp
+  R_ARM_TLS_IE12GP = 111,      // Static       ARM     GOT(S) + A - GOT_ORG
+  R_ARM_PRIVATE_0 = 112,       // Private (n = 0, 1, ... 15)
+  R_ARM_PRIVATE_1 = 113,
+  R_ARM_PRIVATE_2 = 114,
+  R_ARM_PRIVATE_3 = 115,
+  R_ARM_PRIVATE_4 = 116,
+  R_ARM_PRIVATE_5 = 117,
+  R_ARM_PRIVATE_6 = 118,
+  R_ARM_PRIVATE_7 = 119,
+  R_ARM_PRIVATE_8 = 120,
+  R_ARM_PRIVATE_9 = 121,
+  R_ARM_PRIVATE_10 = 122,
+  R_ARM_PRIVATE_11 = 123,
+  R_ARM_PRIVATE_12 = 124,
+  R_ARM_PRIVATE_13 = 125,
+  R_ARM_PRIVATE_14 = 126,
+  R_ARM_PRIVATE_15 = 127,
+  R_ARM_ME_TOO = 128,          // Obsolete
+  R_ARM_THM_TLS_DESCSEQ16 = 129,// Static      Thumb16 
+  R_ARM_THM_TLS_DESCSEQ32 = 130,// Static      Thumb32
+  // 131 - 139                 Unallocated
+  // 140 - 159                 Dynamic         Reserved for future allocation
+  // 160 - 255                 Unallocated
+};
+
+} // End namespace elfcpp.
+
+#endif // !defined(ELFCPP_ARM_H)

diff --git a/elfcpp/elfcpp.h b/elfcpp/elfcpp.h
index 7abc9e3ac0a7603fc82ef9600edf4bb24eb41ce9..e148525492ed835c15242396fa445f660b45c8da 100644 (file)
--- a/elfcpp/elfcpp.h
+++ b/elfcpp/elfcpp.h
@@ -371,6 +371,17 @@ enum SHT
 
   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,
+
   // Link editor is to sort the entries in this section based on the
   // address specified in the associated symbol table entry.
   SHT_ORDERED = 0x7fffffff,
@@ -439,7 +450,11 @@ enum PT
   // 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.
@@ -486,6 +501,10 @@ enum STT
   // 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