diff options
| -rw-r--r-- | nuttx/binfmt/libelf/arm.h | 53 | ||||
| -rw-r--r-- | nuttx/binfmt/libelf/libelf.h | 53 | ||||
| -rw-r--r-- | nuttx/include/elf.h | 279 |
3 files changed, 384 insertions, 1 deletions
diff --git a/nuttx/binfmt/libelf/arm.h b/nuttx/binfmt/libelf/arm.h new file mode 100644 index 000000000..e80457b6e --- /dev/null +++ b/nuttx/binfmt/libelf/arm.h @@ -0,0 +1,53 @@ +/**************************************************************************** + * binfmt/libelf/arm.h + * + * Copyright (C) 2012 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <gnutt@nuttx.org> + * + * 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 __BINFMT_LIBELF_ARM_H +#define __BINFMT_LIBELF_ARM_H + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include <nuttx/config.h> + +/**************************************************************************** + * Pre-processor Definitions + ****************************************************************************/ + +/**************************************************************************** + * Public Types + ****************************************************************************/ + +#endif /* __BINFMT_LIBELF_ARM_H */ diff --git a/nuttx/binfmt/libelf/libelf.h b/nuttx/binfmt/libelf/libelf.h new file mode 100644 index 000000000..80d971bca --- /dev/null +++ b/nuttx/binfmt/libelf/libelf.h @@ -0,0 +1,53 @@ +/**************************************************************************** + * binfmt/libelf/libelf.h + * + * Copyright (C) 2012 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <gnutt@nuttx.org> + * + * 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 __BINFMT_LIBELF_LIBELF_H +#define __BINFMT_LIBELF_LIBELF_H + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include <nuttx/config.h> + +/**************************************************************************** + * Pre-processor Definitions + ****************************************************************************/ + +/**************************************************************************** + * Public Types + ****************************************************************************/ + +#endif /* __BINFMT_LIBELF_LIBELF_H */ diff --git a/nuttx/include/elf.h b/nuttx/include/elf.h index 8d6539c36..31818249f 100644 --- a/nuttx/include/elf.h +++ b/nuttx/include/elf.h @@ -4,6 +4,9 @@ * Copyright (C) 2012 Gregory Nutt. All rights reserved. * Author: Gregory Nutt <gnutt@nuttx.org> * + * 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: @@ -42,12 +45,286 @@ #include <nuttx/config.h> +#include <stdint.h> + /**************************************************************************** * Pre-processor Definitions ****************************************************************************/ /**************************************************************************** - * Public Types + * Pre-processor Definitions ****************************************************************************/ +/* Values for Elf32_Ehdr::e_type */ + +#define ET_NONE 0 /* No file type */ +#define ET_REL 1 /* Relocatable file */ +#define ET_EXEC 2 /* Executable file */ +#define ET_DYN 3 /* Shared object file */ +#define ET_CORE 4 /* Core file */ +#define ET_LOPROC 0xff00 /* Processor-specific */ +#define ET_HIPROC 0xffff /* Processor-specific */ + +/* Values for Elf32_Ehdr::e_machine */ + +#define EM_NONE 0 /* No machine */ +#define EM_M32 1 /* AT&T WE 32100 */ +#define EM_SPARC 2 /* SPARC */ +#define EM_386 3 /* Intel 80386 */ +#define EM_68K 4 /* Motorola 68000 */ +#define EM_88K 5 /* Motorola 88000 */ +#define EM_860 7 /* Intel 80860 */ +#define EM_MIPS 8 /* MIPS RS3000 Big-Endian */ +#define EM_MIPS_RS4_BE 10 /* MIPS RS4000 Big-Endian */ + /* 11-16 Reserved for future use */ + +/* Values for Elf32_Ehdr::e_version */ + +#define EV_NONE 0 /* Invalid version */ +#define EV_CURRENT 1 /* The current version */ + +/* Ehe ELF identifier */ + +#define EI_MAG0 0 /* File identification */ +#define EI_MAG1 1 /* File identification */ +#define EI_MAG2 2 /* File identification */ +#define EI_MAG3 3 /* File identification */ +#define EI_CLASS 4 /* File class */ +#define EI_DATA 5 /* Data encoding */ +#define EI_VERSION 6 /* File version */ +#define EI_PAD 7 /* Start of padding bytes */ +#define EI_NIDENT 16 /* Size of eident[] */ + +#define EI_MAGIC { 0x7f, 'E', 'L', 'F' } + +/* Values for EI_CLASS */ + +#define ELFCLASSNONE 0 /* Invalid class */ +#define ELFCLASS32 1 /* 32-bit objects */ +#define ELFCLASS64 2 /* 64-bit objects */ + +/* Values for EI_DATA */ + +#define ELFDATANONE 0 /* Invalid data encoding */ +#define ELFDATA2LSB 1 /* Least significant byte occupying the lowest address */ +#define ELFDATA2MSB 2 /* Most significant byte occupying the lowest address */ + +/* Figure 4-7: Special Section Indexes */ + +#define SHN_UNDEF 0 +#define SHN_LORESERVE 0xff00 +#define SHN_LOPROC 0xff00 +#define SHN_HIPROC 0xff1f +#define SHN_ABS 0xfff1 +#define SHN_COMMON 0xfff2 +#define SHN_HIRESERVE 0xffff + +/* Figure 4-9: Section Types, sh_type */ + +#define SHT_NULL 0 +#define SHT_PROGBITS 1 +#define SHT_SYMTAB 2 +#define SHT_STRTAB 3 +#define SHT_RELA 4 +#define SHT_HASH 5 +#define SHT_DYNAMIC 6 +#define SHT_NOTE 7 +#define SHT_NOBITS 8 +#define SHT_REL 9 +#define SHT_SHLIB 10 +#define SHT_DYNSYM 11 +#define SHT_LOPROC 0x70000000 +#define SHT_HIPROC 0x7fffffff +#define SHT_LOUSER 0x80000000 +#define SHT_HIUSER 0xffffffff + +/* Figure 4-11: Section Attribute Flags, sh_flags */ + +#define SHF_WRITE 1 +#define SHF_ALLOC 2 +#define SHF_EXECINSTR 4 +#define SHF_MASKPROC 0xf0000000 + +/* Definitions for Elf32_Sym::st_info */ + +#define ELF32_ST_BIND(i) ((i)>>4) +#define ELF32_ST_TYPE(i) ((i)&0xf) +#define ELF32_ST_INFO(b,t) (((b)<<4)+((t)&0xf)) + +/* Figure 4-16: Symbol Binding, ELF32_ST_BIND */ + +#define STB_LOCAL 0 +#define STB_GLOBAL 1 +#define STB_WEAK 2 +#define STB_LOPROC 13 +#define STB_HIPROC 15 + +/* Figure 4-17: Symbol Types, ELF32_ST_TYPE */ + +#define STT_NOTYPE 0 +#define STT_OBJECT 1 +#define STT_FUNC 2 +#define STT_SECTION 3 +#define STT_FILE 4 +#define STT_LOPROC 13 +#define STT_HIPROC 15 + +/* Definitions for Elf32_Rel*::r_info */ + +#define ELF32_R_SYM(i) ((i)>>8) +#define ELF32_R_TYPE(i) ((unsigned char)(i)) +#define ELF32_R_INFO(s,t) (((s)<<8)+(unsigned char)(t)) + +/* Figure 5-2: Segment Types, p_type */ + +#define PT_NULL 0 +#define PT_LOAD 1 +#define PT_DYNAMIC 2 +#define PT_INTERP 3 +#define PT_NOTE 4 +#define PT_SHLIB 5 +#define PT_PHDR 6 +#define PT_LOPROC 0x70000000 +#define PT_HIPROC 0x7fffffff + +/* Figure 5-3: Segment Flag Bits, p_flags */ + +#define PF_X 1 /* Execute */ +#define PF_W 2 /* Write */ +#define PF_R 4 /* Read */ +#define PF_MASKPROC 0xf0000000 /* Unspecified */ + +/* Figure 5-10: Dynamic Array Tags, d_tag */ + +#define DT_NULL 0 /* d_un=ignored */ +#define DT_NEEDED 1 /* d_un=d_val */ +#define DT_PLTRELSZ 2 /* d_un=d_val */ +#define DT_PLTGOT 3 /* d_un=d_ptr */ +#define DT_HASH 4 /* d_un=d_ptr */ +#define DT_STRTAB 5 /* d_un=d_ptr */ +#define DT_SYMTAB 6 /* d_un=d_ptr */ +#define DT_RELA 7 /* d_un=d_ptr */ +#define DT_RELASZ 8 /* d_un=d_val */ +#define DT_RELAENT 9 /* d_un=d_val */ +#define DT_STRSZ 10 /* d_un=d_val */ +#define DT_SYMENT 11 /* d_un=d_val */ +#define DT_INIT 12 /* d_un=d_ptr */ +#define DT_FINI 13 /* d_un=d_ptr */ +#define DT_SONAME 14 /* d_un=d_val */ +#define DT_RPATH 15 /* d_un=d_val */ +#define DT_SYMBOLIC 16 /* d_un=ignored */ +#define DT_REL 17 /* d_un=d_ptr */ +#define DT_RELSZ 18 /* d_un=d_val */ +#define DT_RELENT 19 /* d_un=d_val */ +#define DT_PLTREL 20 /* d_un=d_val */ +#define DT_DEBUG 21 /* d_un=d_ptr */ +#define DT_TEXTREL 22 /* d_un=ignored */ +#define DT_JMPREL 23 /* d_un=d_ptr */ +#define DT_BINDNOW 24 /* d_un=ignored */ +#define DT_LOPROC 0x70000000 /* d_un=unspecified */ +#define DT_HIPROC 0x7fffffff /* d_un= unspecified */ + +/**************************************************************************** + * 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; + +//extern Elf32_Dyn _DYNAMIC[] ; + #endif /* __INCLUDE_ELF_H */ |