diff options
| -rw-r--r-- | elfcpp/ChangeLog | 7 | ||||
| -rw-r--r-- | elfcpp/arm.h | 204 | ||||
| -rw-r--r-- | elfcpp/elfcpp.h | 21 |
3 files changed, 231 insertions, 1 deletions
diff --git a/elfcpp/ChangeLog b/elfcpp/ChangeLog index 43c75c0..b144025 100644 --- 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 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 7abc9e3..e148525 100644 --- 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 |