diff --git a/tools/cxd56/elf32.h b/tools/cxd56/elf32.h new file mode 100644 index 0000000000..a6fa991a26 --- /dev/null +++ b/tools/cxd56/elf32.h @@ -0,0 +1,175 @@ +/**************************************************************************** + * tools/cxd56/elf32.h + * + * Copyright (C) 2012 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt + * + * Reference: System V Application Binary Interface, Edition 4.1, March 18, + * 1997, The Santa Cruz Operation, Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +#ifndef __INCLUDE_ELF32_H +#define __INCLUDE_ELF32_H + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include + +/**************************************************************************** + * Pre-processor Definitions + ****************************************************************************/ + +#define EI_NIDENT 16 /* Size of e_ident[] */ + +#define ELF32_ST_BIND(i) ((i) >> 4) +#define ELF32_ST_TYPE(i) ((i) & 0xf) +#define ELF32_ST_INFO(b,t) (((b) << 4) | ((t) & 0xf)) + +/* Definitions for Elf32_Rel*::r_info */ + +#define ELF32_R_SYM(i) ((i) >> 8) +#define ELF32_R_TYPE(i) ((i) & 0xff) +#define ELF32_R_INFO(s,t) (((s)<< 8) | ((t) & 0xff)) + +#define ELF_R_SYM(i) ELF32_R_SYM(i) + +/**************************************************************************** + * Public Type Definitions + ****************************************************************************/ + +/* Figure 4.2: 32-Bit Data Types */ + +typedef uint32_t Elf32_Addr; /* Unsigned program address */ +typedef uint16_t Elf32_Half; /* Unsigned medium integer */ +typedef uint32_t Elf32_Off; /* Unsigned file offset */ +typedef int32_t Elf32_Sword; /* Signed large integer */ +typedef uint32_t Elf32_Word; /* Unsigned large integer */ + +/* Figure 4-3: ELF Header */ + +typedef struct +{ + unsigned char e_ident[EI_NIDENT]; + Elf32_Half e_type; + Elf32_Half e_machine; + Elf32_Word e_version; + Elf32_Addr e_entry; + Elf32_Off e_phoff; + Elf32_Off e_shoff; + Elf32_Word e_flags; + Elf32_Half e_ehsize; + Elf32_Half e_phentsize; + Elf32_Half e_phnum; + Elf32_Half e_shentsize; + Elf32_Half e_shnum; + Elf32_Half e_shstrndx; +} Elf32_Ehdr; + +/* Figure 4-8: Section Header */ + +typedef struct +{ + Elf32_Word sh_name; + Elf32_Word sh_type; + Elf32_Word sh_flags; + Elf32_Addr sh_addr; + Elf32_Off sh_offset; + Elf32_Word sh_size; + Elf32_Word sh_link; + Elf32_Word sh_info; + Elf32_Word sh_addralign; + Elf32_Word sh_entsize; +} Elf32_Shdr; + +/* Figure 4-15: Symbol Table Entry */ + +typedef struct +{ + Elf32_Word st_name; + Elf32_Addr st_value; + Elf32_Word st_size; + unsigned char st_info; + unsigned char st_other; + Elf32_Half st_shndx; +} Elf32_Sym; + +/* Figure 4-19: Relocation Entries */ + +typedef struct +{ + Elf32_Addr r_offset; + Elf32_Word r_info; +} Elf32_Rel; + +typedef struct +{ + Elf32_Addr r_offset; + Elf32_Word r_info; + Elf32_Sword r_addend; +} Elf32_Rela; + +/* Figure 5-1: Program Header */ + +typedef struct +{ + Elf32_Word p_type; + Elf32_Off p_offset; + Elf32_Addr p_vaddr; + Elf32_Addr p_paddr; + Elf32_Word p_filesz; + Elf32_Word p_memsz; + Elf32_Word p_flags; + Elf32_Word p_align; +} Elf32_Phdr; + +/* Figure 5-9: Dynamic Structure */ + +typedef struct +{ + Elf32_Sword d_tag; + union + { + Elf32_Word d_val; + Elf32_Addr d_ptr; + } d_un; +} Elf32_Dyn; + +typedef Elf32_Addr Elf_Addr; +typedef Elf32_Ehdr Elf_Ehdr; +typedef Elf32_Rel Elf_Rel; +typedef Elf32_Rela Elf_Rela; +typedef Elf32_Sym Elf_Sym; +typedef Elf32_Shdr Elf_Shdr; +typedef Elf32_Word Elf_Word; + +#endif /* __INCLUDE_ELF32_H */ diff --git a/tools/cxd56/mkspk.h b/tools/cxd56/mkspk.h index 5a67bb3dd4..5c1b979c04 100644 --- a/tools/cxd56/mkspk.h +++ b/tools/cxd56/mkspk.h @@ -36,12 +36,22 @@ ****************************************************************************/ #include "clefia.h" -#include "elf.h" +#include "elf32.h" /**************************************************************************** * Pre-processor Definitions ****************************************************************************/ +#define EI_MAG0 0 /* File identification */ +#define EI_MAG1 1 +#define EI_MAG2 2 +#define EI_MAG3 3 + +#define SHT_SYMTAB 2 +#define SHT_STRTAB 3 + +#define PT_LOAD 1 + #define alignup(x, a) (((x) + ((a) - 1)) & ~((a) - 1)) #define swap(a, b) { (a) ^= (b); (b) ^= (a); (a) ^= (b); }