Merge pull request #3094 from kamtom480/mkspk
spresense: add elf32.h for mkspk
This commit is contained in:
Jeff Epler
GitHub
commit
3a17a79bf2
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/****************************************************************************
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* include/elf32.h
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*
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* Copyright (C) 2012 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* Reference: System V Application Binary Interface, Edition 4.1, March 18,
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* 1997, The Santa Cruz Operation, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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#ifndef __INCLUDE_ELF32_H
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#define __INCLUDE_ELF32_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <stdint.h>
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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#define EI_NIDENT 16 /* Size of e_ident[] */
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#define ELF32_ST_BIND(i) ((i) >> 4)
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#define ELF32_ST_TYPE(i) ((i) & 0xf)
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#define ELF32_ST_INFO(b,t) (((b) << 4) | ((t) & 0xf))
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/* Definitions for Elf32_Rel*::r_info */
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#define ELF32_R_SYM(i) ((i) >> 8)
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#define ELF32_R_TYPE(i) ((i) & 0xff)
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#define ELF32_R_INFO(s,t) (((s)<< 8) | ((t) & 0xff))
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#define ELF_R_SYM(i) ELF32_R_SYM(i)
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/****************************************************************************
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* Public Type Definitions
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****************************************************************************/
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/* Figure 4.2: 32-Bit Data Types */
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typedef uint32_t Elf32_Addr; /* Unsigned program address */
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typedef uint16_t Elf32_Half; /* Unsigned medium integer */
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typedef uint32_t Elf32_Off; /* Unsigned file offset */
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typedef int32_t Elf32_Sword; /* Signed large integer */
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typedef uint32_t Elf32_Word; /* Unsigned large integer */
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/* Figure 4-3: ELF Header */
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typedef struct
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{
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unsigned char e_ident[EI_NIDENT];
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Elf32_Half e_type;
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Elf32_Half e_machine;
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Elf32_Word e_version;
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Elf32_Addr e_entry;
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Elf32_Off e_phoff;
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Elf32_Off e_shoff;
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Elf32_Word e_flags;
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Elf32_Half e_ehsize;
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Elf32_Half e_phentsize;
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Elf32_Half e_phnum;
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Elf32_Half e_shentsize;
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Elf32_Half e_shnum;
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Elf32_Half e_shstrndx;
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} Elf32_Ehdr;
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/* Figure 4-8: Section Header */
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typedef struct
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{
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Elf32_Word sh_name;
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Elf32_Word sh_type;
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Elf32_Word sh_flags;
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Elf32_Addr sh_addr;
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Elf32_Off sh_offset;
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Elf32_Word sh_size;
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Elf32_Word sh_link;
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Elf32_Word sh_info;
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Elf32_Word sh_addralign;
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Elf32_Word sh_entsize;
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} Elf32_Shdr;
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/* Figure 4-15: Symbol Table Entry */
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typedef struct
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{
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Elf32_Word st_name;
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Elf32_Addr st_value;
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Elf32_Word st_size;
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unsigned char st_info;
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unsigned char st_other;
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Elf32_Half st_shndx;
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} Elf32_Sym;
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/* Figure 4-19: Relocation Entries */
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typedef struct
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{
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Elf32_Addr r_offset;
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Elf32_Word r_info;
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} Elf32_Rel;
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typedef struct
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{
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Elf32_Addr r_offset;
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Elf32_Word r_info;
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Elf32_Sword r_addend;
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} Elf32_Rela;
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/* Figure 5-1: Program Header */
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typedef struct
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{
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Elf32_Word p_type;
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Elf32_Off p_offset;
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Elf32_Addr p_vaddr;
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Elf32_Addr p_paddr;
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Elf32_Word p_filesz;
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Elf32_Word p_memsz;
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Elf32_Word p_flags;
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Elf32_Word p_align;
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} Elf32_Phdr;
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/* Figure 5-9: Dynamic Structure */
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typedef struct
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{
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Elf32_Sword d_tag;
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union
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{
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Elf32_Word d_val;
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Elf32_Addr d_ptr;
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} d_un;
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} Elf32_Dyn;
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typedef Elf32_Addr Elf_Addr;
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typedef Elf32_Ehdr Elf_Ehdr;
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typedef Elf32_Rel Elf_Rel;
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typedef Elf32_Rela Elf_Rela;
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typedef Elf32_Sym Elf_Sym;
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typedef Elf32_Shdr Elf_Shdr;
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typedef Elf32_Word Elf_Word;
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#endif /* __INCLUDE_ELF32_H */
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@ -36,12 +36,22 @@
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****************************************************************************/
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#include "clefia.h"
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#include "elf.h"
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#include "elf32.h"
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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#define EI_MAG0 0 /* File identification */
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#define EI_MAG1 1
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#define EI_MAG2 2
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#define EI_MAG3 3
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#define SHT_SYMTAB 2
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#define SHT_STRTAB 3
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#define PT_LOAD 1
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#define alignup(x, a) (((x) + ((a) - 1)) & ~((a) - 1))
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#define swap(a, b) { (a) ^= (b); (b) ^= (a); (a) ^= (b); }
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