288 lines
14 KiB
C
288 lines
14 KiB
C
/****************************************************************************
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* arch/arm/include/elf.h
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/* Reference: "ELF for the ARM Architecture," ARM IHI 0044D, current through
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* ABI release 2.08, October 28, 2009, ARM Limited.
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*/
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#ifndef __ARCH_ARM_INCLUDE_ELF_H
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#define __ARCH_ARM_INCLUDE_ELF_H
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/****************************************************************************
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* Pre-processor Prototypes
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****************************************************************************/
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/* 4.3.1 ELF Identification. Should have:
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*
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* e_machine = EM_ARM
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* e_ident[EI_CLASS] = ELFCLASS32
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* e_ident[EI_DATA] = ELFDATA2LSB (little endian) or
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* ELFDATA2MSB (big endian)
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*/
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#define EM_ARCH EM_ARM
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/* Table 4-2, ARM-specific e_flags */
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#define EF_ARM_EABI_MASK 0xff000000
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#define EF_ARM_EABI_UNKNOWN 0x00000000
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#define EF_ARM_EABI_VER1 0x01000000
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#define EF_ARM_EABI_VER2 0x02000000
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#define EF_ARM_EABI_VER3 0x03000000
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#define EF_ARM_EABI_VER4 0x04000000
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#define EF_ARM_EABI_VER5 0x05000000
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#define EF_ARM_BE8 0x00800000
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#define EF_ARM_ABI_FLOAT_SOFT 0x00000200
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#define EF_ARM_ABI_FLOAT_HARD 0x00000400
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#ifdef __VFP_FP__
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# ifdef __ARM_PCS_VFP
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# define EF_ARM_ABI_FLOAT EF_ARM_ABI_FLOAT_HARD
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# else
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# define EF_ARM_ABI_FLOAT EF_ARM_ABI_FLOAT_SOFT
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# endif
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#else
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# define EF_ARM_ABI_FLOAT 0
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#endif
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#define EF_FLAG (EF_ARM_EABI_VER5 | EF_ARM_ABI_FLOAT)
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/* Table 4-4, Processor specific section types */
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#define SHT_ARM_EXIDX 0x70000001 /* Exception Index table */
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#define SHT_ARM_PREEMPTMAP 0x70000002 /* BPABI DLL dynamic linking pre-emption map */
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#define SHT_ARM_ATTRIBUTES 0x70000003 /* Object file compatibility attributes */
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#define SHT_ARM_DEBUGOVERLAY 0x70000004
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#define SHT_ARM_OVERLAYSECTION 0x70000005
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/* 4.7.1 Relocation codes
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*
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* S (when used on its own) is the address of the symbol.
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* A is the addend for the relocation.
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* P is the address of the place being relocated (derived from r_offset).
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* Pa is the adjusted address of the place being relocated, defined as
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* (P & 0xFFFFFFFC).
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* T is 1 if the target symbol S has type STT_FUNC and the symbol addresses
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* a Thumb instruction; it is 0 otherwise.
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* B(S) is the addressing origin of the output segment defining the symbol S.
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* GOT_ORG is the addressing origin of the Global Offset Table
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* GOT(S) is the address of the GOT entry for the symbol S.
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*/
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#define R_ARM_NONE 0 /* No relocation */
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#define R_ARM_PC24 1 /* ARM ((S + A) | T) - P */
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#define R_ARM_ABS32 2 /* Data (S + A) | T */
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#define R_ARM_REL32 3 /* Data ((S + A) | T) - P */
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#define R_ARM_LDR_PC_G0 4 /* ARM S + A - P */
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#define R_ARM_ABS16 5 /* Data S + A */
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#define R_ARM_ABS12 6 /* ARM S + A */
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#define R_ARM_THM_ABS5 7 /* Thumb16 S + A */
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#define R_ARM_ABS8 8 /* Data S + A */
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#define R_ARM_SBREL32 9 /* Data ((S + A) | T) - B(S) */
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#define R_ARM_THM_CALL 10 /* Thumb32 ((S + A) | T) - P */
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#define R_ARM_THM_PC8 11 /* Thumb16 S + A - Pa */
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#define R_ARM_BREL_ADJ 12 /* Data ?B(S) + A */
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#define R_ARM_TLS_DESC 13 /* Data */
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#define R_ARM_THM_SWI8 14 /* Obsolete */
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#define R_ARM_XPC25 15 /* Obsolete */
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#define R_ARM_THM_XPC22 16 /* Obsolete */
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#define R_ARM_TLS_DTPMOD32 17 /* Data Module[S] */
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#define R_ARM_TLS_DTPOFF32 18 /* Data S + A - TLS */
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#define R_ARM_TLS_TPOFF32 19 /* Data S + A - tp */
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#define R_ARM_COPY 20 /* Miscellaneous */
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#define R_ARM_GLOB_DAT 21 /* Data (S + A) | T */
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#define R_ARM_JUMP_SLOT 22 /* Data (S + A) | T */
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#define R_ARM_RELATIVE 23 /* Data B(S) + A */
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#define R_ARM_GOTOFF32 24 /* Data ((S + A) | T) - GOT_ORG */
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#define R_ARM_BASE_PREL 25 /* Data B(S) + A - P */
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#define R_ARM_GOT_BREL 26 /* Data GOT(S) + A - GOT_ORG */
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#define R_ARM_PLT32 27 /* ARM ((S + A) | T) - P */
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#define R_ARM_CALL 28 /* ARM ((S + A) | T) - P */
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#define R_ARM_JUMP24 29 /* ARM ((S + A) | T) - P */
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#define R_ARM_THM_JUMP24 30 /* Thumb32 ((S + A) | T) - P */
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#define R_ARM_BASE_ABS 31 /* Data B(S) + A */
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#define R_ARM_ALU_PCREL_7_0 32 /* Obsolete */
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#define R_ARM_ALU_PCREL_15_8 33 /* Obsolete */
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#define R_ARM_ALU_PCREL_23_15 34 /* Obsolete */
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#define R_ARM_LDR_SBREL_11_0_NC 35 /* ARM S + A - B(S) */
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#define R_ARM_ALU_SBREL_19_12_NC 36 /* ARM S + A - B(S) */
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#define R_ARM_ALU_SBREL_27_20_CK 37 /* ARM S + A - B(S) */
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#define R_ARM_TARGET1 38 /* Miscellaneous (S + A) | T or ((S + A) | T) - P */
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#define R_ARM_SBREL31 39 /* Data ((S + A) | T) - B(S) */
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#define R_ARM_V4BX 40 /* Miscellaneous */
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#define R_ARM_TARGET2 41 /* Miscellaneous */
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#define R_ARM_PREL31 42 /* Data ((S + A) | T) - P */
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#define R_ARM_MOVW_ABS_NC 43 /* ARM (S + A) | T */
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#define R_ARM_MOVT_ABS 44 /* ARM S + A */
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#define R_ARM_MOVW_PREL_NC 45 /* ARM ((S + A) | T) - P */
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#define R_ARM_MOVT_PREL 46 /* ARM S + A - P */
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#define R_ARM_THM_MOVW_ABS_NC 47 /* Thumb32 (S + A) | T */
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#define R_ARM_THM_MOVT_ABS 48 /* Thumb32 S + A */
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#define R_ARM_THM_MOVW_PREL_NC 49 /* Thumb32 ((S + A) | T) - P */
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#define R_ARM_THM_MOVT_PREL 50 /* Thumb32 S + A - P */
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#define R_ARM_THM_JUMP19 51 /* Thumb32 ((S + A) | T) - P */
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#define R_ARM_THM_JUMP6 52 /* Thumb16 S + A - P */
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#define R_ARM_THM_ALU_PREL_11_0 53 /* Thumb32 ((S + A) | T) - Pa */
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#define R_ARM_THM_PC12 54 /* Thumb32 S + A - Pa */
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#define R_ARM_ABS32_NOI 55 /* Data S + A */
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#define R_ARM_REL32_NOI 56 /* Data S + A - P */
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#define R_ARM_ALU_PC_G0_NC 57 /* ARM ((S + A) | T) - P */
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#define R_ARM_ALU_PC_G0 58 /* ARM ((S + A) | T) - P */
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#define R_ARM_ALU_PC_G1_NC 59 /* ARM ((S + A) | T) - P */
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#define R_ARM_ALU_PC_G1 60 /* ARM ((S + A) | T) - P */
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#define R_ARM_ALU_PC_G2 61 /* ARM ((S + A) | T) - P */
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#define R_ARM_LDR_PC_G1 62 /* ARM S + A - P */
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#define R_ARM_LDR_PC_G2 63 /* ARM S + A - P */
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#define R_ARM_LDRS_PC_G0 64 /* ARM S + A - P */
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#define R_ARM_LDRS_PC_G1 65 /* ARM S + A - P */
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#define R_ARM_LDRS_PC_G2 66 /* ARM S + A - P */
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#define R_ARM_LDC_PC_G0 67 /* ARM S + A - P */
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#define R_ARM_LDC_PC_G1 68 /* ARM S + A - P */
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#define R_ARM_LDC_PC_G2 69 /* ARM S + A - P */
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#define R_ARM_ALU_SB_G0_NC 70 /* ARM ((S + A) | T) - B(S) */
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#define R_ARM_ALU_SB_G0 71 /* ARM ((S + A) | T) - B(S) */
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#define R_ARM_ALU_SB_G1_NC 72 /* ARM ((S + A) | T) - B(S) */
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#define R_ARM_ALU_SB_G1 73 /* ARM ((S + A) | T) - B(S) */
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#define R_ARM_ALU_SB_G2 74 /* ARM ((S + A) | T) - B(S) */
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#define R_ARM_LDR_SB_G0 75 /* ARM S + A - B(S) */
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#define R_ARM_LDR_SB_G1 76 /* ARM S + A - B(S) */
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#define R_ARM_LDR_SB_G2 77 /* ARM S + A - B(S) */
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#define R_ARM_LDRS_SB_G0 78 /* ARM S + A - B(S) */
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#define R_ARM_LDRS_SB_G1 79 /* ARM S + A - B(S) */
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#define R_ARM_LDRS_SB_G2 80 /* ARM S + A - B(S) */
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#define R_ARM_LDC_SB_G0 81 /* ARM S + A - B(S) */
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#define R_ARM_LDC_SB_G1 82 /* ARM S + A - B(S) */
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#define R_ARM_LDC_SB_G2 83 /* ARM S + A - B(S) */
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#define R_ARM_MOVW_BREL_NC 84 /* ARM ((S + A) | T) - B(S) */
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#define R_ARM_MOVT_BREL 85 /* ARM S + A - B(S) */
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#define R_ARM_MOVW_BREL 86 /* ARM ((S + A) | T) - B(S) */
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#define R_ARM_THM_MOVW_BREL_NC 87 /* Thumb32 ((S + A) | T) - B(S) */
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#define R_ARM_THM_MOVT_BREL 88 /* Thumb32 S + A - B(S) */
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#define R_ARM_THM_MOVW_BREL 89 /* Thumb32 ((S + A) | T) - B(S) */
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#define R_ARM_TLS_GOTDESC 90 /* Data */
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#define R_ARM_TLS_CALL 91 /* ARM */
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#define R_ARM_TLS_DESCSEQ 92 /* ARM TLS relaxation */
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#define R_ARM_THM_TLS_CALL 93 /* Thumb32 */
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#define R_ARM_PLT32_ABS 94 /* Data PLT(S) + A */
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#define R_ARM_GOT_ABS 95 /* Data GOT(S) + A */
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#define R_ARM_GOT_PREL 96 /* Data GOT(S) + A - P */
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#define R_ARM_GOT_BREL12 97 /* ARM GOT(S) + A - GOT_ORG */
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#define R_ARM_GOTOFF12 98 /* ARM S + A - GOT_ORG */
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#define R_ARM_GOTRELAX 99 /* Miscellaneous */
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#define R_ARM_GNU_VTENTRY 100 /* Data */
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#define R_ARM_GNU_VTINHERIT 101 /* Data */
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#define R_ARM_THM_JUMP11 102 /* Thumb16 S + A - P */
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#define R_ARM_THM_JUMP8 103 /* Thumb16 S + A - P */
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#define R_ARM_TLS_GD32 104 /* Data GOT(S) + A - P */
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#define R_ARM_TLS_LDM32 105 /* Data GOT(S) + A - P */
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#define R_ARM_TLS_LDO32 106 /* Data S + A - TLS */
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#define R_ARM_TLS_IE32 107 /* Data GOT(S) + A - P */
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#define R_ARM_TLS_LE32 108 /* Data S + A - tp */
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#define R_ARM_TLS_LDO12 109 /* ARM S + A - TLS */
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#define R_ARM_TLS_LE12 110 /* ARM S + A - tp */
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#define R_ARM_TLS_IE12GP 111 /* ARM GOT(S) + A - GOT_ORG */
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#define R_ARM_ME_TOO 128 /* Obsolete */
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#define R_ARM_THM_TLS_DESCSEQ16 129 /* Thumb16 */
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#define R_ARM_THM_TLS_DESCSEQ32 130 /* Thumb32 */
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/* Processor specific values for the Phdr p_type field. */
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#define PT_ARM_EXIDX (PT_LOPROC + 1) /* ARM unwind segment. */
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/* 5.2.1 Platform architecture compatibility data */
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#define PT_ARM_ARCHEXT_FMTMSK 0xff000000
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#define PT_ARM_ARCHEXT_PROFMSK 0x00ff0000
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#define PT_ARM_ARCHEXT_ARCHMSK 0x000000ff
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#define PT_ARM_ARCHEXT_FMT_OS 0x00000000
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#define PT_ARM_ARCHEXT_FMT_ABI 0x01000000
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#define PT_ARM_ARCHEXT_PROF_NONE 0x00000000
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#define PT_ARM_ARCHEXT_PROF_ARM 0x00410000
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#define PT_ARM_ARCHEXT_PROF_RT 0x00520000
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#define PT_ARM_ARCHEXT_PROF_MC 0x004d0000
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#define PT_ARM_ARCHEXT_PROF_CLASSIC 0x00530000
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#define PT_ARM_ARCHEXT_ARCH_UNKNOWN 0x00
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#define PT_ARM_ARCHEXT_ARCHv4 0x01
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#define PT_ARM_ARCHEXT_ARCHv4T 0x02
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#define PT_ARM_ARCHEXT_ARCHv5T 0x03
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#define PT_ARM_ARCHEXT_ARCHv5TE 0x04
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#define PT_ARM_ARCHEXT_ARCHv5TEJ 0x05
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#define PT_ARM_ARCHEXT_ARCHv6 0x06
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#define PT_ARM_ARCHEXT_ARCHv6KZ 0x07
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#define PT_ARM_ARCHEXT_ARCHv6T2 0x08
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#define PT_ARM_ARCHEXT_ARCHv6K 0x09
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#define PT_ARM_ARCHEXT_ARCHv7 0x0a
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#define PT_ARM_ARCHEXT_ARCHv6M 0x0b
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#define PT_ARM_ARCHEXT_ARCHv6SM 0x0c
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#define PT_ARM_ARCHEXT_ARCHv7EM 0x0d
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/* Table 5-6, ARM-specific dynamic array tags */
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#define DT_ARM_RESERVED1 0x70000000
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#define DT_ARM_SYMTABSZ 0x70000001
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#define DT_ARM_PREEMPTMAP 0x70000002
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#define DT_ARM_RESERVED2 0x70000003
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/****************************************************************************
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* Public Types
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****************************************************************************/
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typedef struct __EIT_entry
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{
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unsigned long fnoffset;
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unsigned long content;
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} __EIT_entry;
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/* ELF register definitions */
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/* Holds the general purpose registers $a1 * through to $pc
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* at indices 0 to 15. At index 16 the program status register.
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* Index 17 should be set to zero.
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*/
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typedef unsigned long elf_gregset_t[18];
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/****************************************************************************
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* Public Data
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****************************************************************************/
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#ifdef __cplusplus
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#define EXTERN extern "C"
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extern "C"
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{
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#else
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#define EXTERN extern
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#endif
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extern __EIT_entry __exidx_start[];
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extern __EIT_entry __exidx_end[];
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#undef EXTERN
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#ifdef __cplusplus
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}
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#endif
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#endif /* __ARCH_ARM_INCLUDE_ELF_H */
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