diff options
Diffstat (limited to 'elf/elf.h')
| -rw-r--r-- | elf/elf.h | 242 |
1 files changed, 164 insertions, 78 deletions
diff --git a/elf/elf.h b/elf/elf.h index ec81f0b820..f6d023d207 100644 --- a/elf/elf.h +++ b/elf/elf.h @@ -23,16 +23,37 @@ Cambridge, MA 02139, USA. */ #define _ELF_H 1 -/* Standard ELF types. +/* Standard ELF types. Using __attribute__ mode ensures that GCC + will choose the right number of bits for these types. */ - Using __attribute__ mode ensures that gcc will choose the right for - these types. */ +/* Type for a 16-bit quantity. */ +typedef unsigned int Elf32_Half __attribute__ ((mode (HI))); +typedef unsigned int Elf64_Half __attribute__ ((mode (HI))); + +/* Types for signed and unsigned 32-bit quantities. */ +typedef unsigned int Elf32_Word __attribute__ ((mode (SI))); +typedef int Elf32_Sword __attribute__ ((mode (SI))); +typedef unsigned int Elf64_Word __attribute__ ((mode (SI))); +typedef int Elf64_Sword __attribute__ ((mode (SI))); + +/* Types for signed and unsigned 64-bit quantities. */ +typedef unsigned int Elf32_Xword __attribute__ ((mode (DI))); +typedef int Elf32_Sxword __attribute__ ((mode (DI))); +typedef unsigned int Elf64_Xword __attribute__ ((mode (DI))); +typedef int Elf64_Sxword __attribute__ ((mode (DI))); +/* Type of addresses. */ typedef unsigned int Elf32_Addr __attribute__ ((mode (SI))); -typedef unsigned int Elf32_Half __attribute__ ((mode (HI))); +typedef unsigned int Elf64_Addr __attribute__ ((mode (DI))); + +/* Type of file offsets. */ typedef unsigned int Elf32_Off __attribute__ ((mode (SI))); -typedef int Elf32_Sword __attribute__ ((mode (SI))); -typedef unsigned int Elf32_Word __attribute__ ((mode (SI))); +typedef unsigned int Elf64_Off __attribute__ ((mode (DI))); + +/* Type for section indices, which are 16-bit quantities. */ +typedef unsigned int Elf32_Section __attribute__ ((mode (HI))); +typedef unsigned int Elf64_Section __attribute__ ((mode (HI))); + /* The ELF file header. This appears at the start of every ELF file. */ @@ -56,6 +77,24 @@ typedef struct Elf32_Half e_shstrndx; /* Section header string table index */ } Elf32_Ehdr; +typedef struct +{ + unsigned char e_ident[EI_NIDENT]; /* Magic number and other info */ + Elf64_Half e_type; /* Object file type */ + Elf64_Half e_machine; /* Architecture */ + Elf64_Word e_version; /* Object file version */ + Elf64_Addr e_entry; /* Entry point virtual address */ + Elf64_Off e_phoff; /* Program header table file offset */ + Elf64_Off e_shoff; /* Section header table file offset */ + Elf64_Word e_flags; /* Processor-specific flags */ + Elf64_Half e_ehsize; /* ELF header size in bytes */ + Elf64_Half e_phentsize; /* Program header table entry size */ + Elf64_Half e_phnum; /* Program header table entry count */ + Elf64_Half e_shentsize; /* Section header table entry size */ + Elf64_Half e_shnum; /* Section header table entry count */ + Elf64_Half e_shstrndx; /* Section header string table index */ +} Elf64_Ehdr; + /* Fields in the e_ident array. The EI_* macros are indices into the array. The macros under each EI_* macro are the values the byte may have. */ @@ -125,6 +164,8 @@ typedef struct pick large random numbers (0x8523, 0xa7f2, etc.) to minimize the chances of collision with official or non-GNU unofficial values. */ +#define EM_ALPHA 0x9026 + /* Legal values for e_version (version). */ #define EV_NONE 0 /* Invalid ELF version */ @@ -146,6 +187,20 @@ typedef struct Elf32_Word sh_entsize; /* Entry size if section holds table */ } Elf32_Shdr; +typedef struct +{ + Elf64_Word sh_name; /* Section name (string tbl index) */ + Elf64_Word sh_type; /* Section type */ + Elf64_Xword sh_flags; /* Section flags */ + Elf64_Addr sh_addr; /* Section virtual addr at execution */ + Elf64_Off sh_offset; /* Section file offset */ + Elf64_Xword sh_size; /* Section size in bytes */ + Elf64_Word sh_link; /* Link to another section */ + Elf64_Word sh_info; /* Additional section information */ + Elf64_Xword sh_addralign; /* Section alignment */ + Elf64_Xword sh_entsize; /* Entry size if section holds table */ +} Elf64_Shdr; + /* Special section indices. */ #define SHN_UNDEF 0 /* Undefined section */ @@ -192,9 +247,19 @@ typedef struct Elf32_Word st_size; /* Symbol size */ unsigned char st_info; /* Symbol type and binding */ unsigned char st_other; /* No defined meaning, 0 */ - Elf32_Half st_shndx; /* Section index */ + Elf32_Section st_shndx; /* Section index */ } Elf32_Sym; +typedef struct +{ + Elf64_Word st_name; /* Symbol name (string tbl index) */ + unsigned char st_info; /* Symbol type and binding */ + unsigned char st_other; /* No defined meaning, 0 */ + Elf64_Section st_shndx; /* Section index */ + Elf64_Addr st_value; /* Symbol value */ + Elf64_Xword st_size; /* Symbol size */ +} Elf64_Sym; + /* Special section index. */ #define SHN_UNDEF 0 /* No section, undefined symbol. */ @@ -205,6 +270,11 @@ typedef struct #define ELF32_ST_TYPE(val) ((val) & 0xf) #define ELF32_ST_INFO(bind, type) (((bind) << 4) + ((type) & 0xf)) +/* Both Elf32_Sym and Elf64_Sym use the same one-byte st_info field. */ +#define ELF64_ST_BIND(val) ELF32_ST_BIND (val) +#define ELF64_ST_TYPE(val) ELF32_ST_TYPE (val) +#define ELF64_ST_INFO(bind, type) ELF32_ST_INFO ((bind), (type)) + /* Legal values for ST_BIND subfield of st_info (symbol binding). */ #define STB_LOCAL 0 /* Local symbol */ @@ -241,6 +311,17 @@ typedef struct Elf32_Word r_info; /* Relocation type and symbol index */ } Elf32_Rel; +/* I have seen two different definitions of the Elf64_Rel and + Elf64_Rela structures, so we'll leave them out until Novell (or + whoever) gets their act together. */ +/* The following, at least, is used on Sparc v9, MIPS, and Alpha. */ + +typedef struct +{ + Elf64_Addr r_offset; /* Address */ + Elf64_Xword r_info; /* Relocation type and symbol index */ +} Elf64_Rel; + /* Relocation table entry with addend (in section of type SHT_RELA). */ typedef struct @@ -250,6 +331,13 @@ typedef struct Elf32_Sword r_addend; /* Addend */ } Elf32_Rela; +typedef struct +{ + Elf64_Addr r_offset; /* Address */ + Elf64_Xword r_info; /* Relocation type and symbol index */ + Elf64_Sxword r_addend; /* Addend */ +} Elf64_Rela; + /* How to extract and insert information held in the r_info field. */ #define ELF32_R_SYM(val) ((val) >> 8) @@ -262,7 +350,8 @@ typedef struct /* Program segment header. */ -typedef struct { +typedef struct +{ Elf32_Word p_type; /* Segment type */ Elf32_Off p_offset; /* Segment file offset */ Elf32_Addr p_vaddr; /* Segment virtual address */ @@ -273,6 +362,18 @@ typedef struct { Elf32_Word p_align; /* Segment alignment */ } Elf32_Phdr; +typedef struct +{ + Elf64_Word p_type; /* Segment type */ + Elf64_Word p_flags; /* Segment flags */ + Elf64_Off p_offset; /* Segment file offset */ + Elf64_Addr p_vaddr; /* Segment virtual address */ + Elf64_Addr p_paddr; /* Segment physical address */ + Elf64_Xword p_filesz; /* Segment size in file */ + Elf64_Xword p_memsz; /* Segment size in memory */ + Elf64_Xword p_align; /* Segment alignment */ +} Elf64_Phdr; + /* Legal values for p_type (segment type). */ #define PT_NULL 0 /* Program header table entry unused */ @@ -316,6 +417,16 @@ typedef struct } d_un; } Elf32_Dyn; +typedef struct +{ + Elf64_Sxword d_tag; /* Dynamic entry type */ + union + { + Elf64_Xword d_val; /* Integer value */ + Elf64_Addr d_ptr; /* Address value */ + } d_un; +} Elf64_Dyn; + /* Legal values for d_tag (dynamic entry type). */ #define DT_NULL 0 /* Marks end of dynamic section */ @@ -347,76 +458,6 @@ typedef struct #define DT_HIPROC 0x7fffffff /* End of processor-specific */ #define DT_PROCNUM DT_MIPS_NUM /* Most used by any processor */ -/* Standard 64 bit ELF types. */ - -typedef unsigned int Elf64_Addr __attribute__ ((mode (DI))); -typedef unsigned int Elf64_Half __attribute__ ((mode (HI))); -typedef unsigned int Elf64_Off __attribute__ ((mode (DI))); -typedef int Elf64_Sword __attribute__ ((mode (SI))); -typedef int Elf64_Sxword __attribute__ ((mode (DI))); -typedef unsigned int Elf64_Word __attribute__ ((mode (SI))); -typedef unsigned int Elf64_Xword __attribute__ ((mode (DI))); -typedef unsigned int Elf64_Byte __attribute__ ((mode (QI))); -typedef unsigned int Elf64_Section __attribute__ ((mode (HI))); - -/* 64 bit ELF file header. */ - -typedef struct -{ - unsigned char e_ident[EI_NIDENT]; /* Magic number and other info */ - Elf64_Half e_type; /* Object file type */ - Elf64_Half e_machine; /* Architecture */ - Elf64_Word e_version; /* Object file version */ - Elf64_Addr e_entry; /* Entry point virtual address */ - Elf64_Off e_phoff; /* Program header table file offset */ - Elf64_Off e_shoff; /* Section header table file offset */ - Elf64_Word e_flags; /* Processor-specific flags */ - Elf64_Half e_ehsize; /* ELF header size in bytes */ - Elf64_Half e_phentsize; /* Program header table entry size */ - Elf64_Half e_phnum; /* Program header table entry count */ - Elf64_Half e_shentsize; /* Section header table entry size */ - Elf64_Half e_shnum; /* Section header table entry count */ - Elf64_Half e_shstrndx; /* Section header string table index */ -} Elf64_Ehdr; - -/* 64 bit section header. */ - -typedef struct -{ - Elf64_Word sh_name; /* Section name (string tbl index) */ - Elf64_Word sh_type; /* Section type */ - Elf64_Xword sh_flags; /* Section flags */ - Elf64_Addr sh_addr; /* Section virtual addr at execution */ - Elf64_Off sh_offset; /* Section file offset */ - Elf64_Xword sh_size; /* Section size in bytes */ - Elf64_Word sh_link; /* Link to another section */ - Elf64_Word sh_info; /* Additional section information */ - Elf64_Xword sh_addralign; /* Section alignment */ - Elf64_Xword sh_entsize; /* Entry size if section holds table */ -} Elf64_Shdr; - -/* 64 bit symbol table entry. */ - -typedef struct -{ - Elf64_Word st_name; /* Symbol name (string tbl index) */ - Elf64_Byte st_info; /* Symbol type and binding */ - Elf64_Byte st_other; /* No defined meaning, 0 */ - Elf64_Section st_shndx; /* Section index */ - Elf64_Addr st_value; /* Symbol value */ - Elf64_Xword st_size; /* Symbol size */ -} Elf64_Sym; - -/* The 64 bit st_info field is the same as the 32 bit one. */ - -#define ELF64_ST_BIND(val) (((unsigned char) (val)) >> 4) -#define ELF64_ST_TYPE(val) ((val) & 0xf) -#define ELF64_ST_INFO(bind, type) (((bind) << 4) + ((type) & 0xf)) - -/* I have seen two different definitions of the Elf64_Rel and - Elf64_Rela structures, so we'll leave them out until Novell (or - whoever) gets their act together. */ - /* Auxiliary vector. */ /* This vector is normally only used by the program interpreter. The @@ -437,6 +478,17 @@ typedef struct } a_un; } Elf32_auxv_t; +typedef struct +{ + long int a_type; /* Entry type */ + union + { + long int a_val; /* Integer value */ + void *a_ptr; /* Pointer value */ + void (*a_fcn) (void); /* Function pointer value */ + } a_un; +} Elf64_auxv_t; + /* Legal values for a_type (entry type). */ #define AT_NULL 0 /* End of vector */ @@ -684,4 +736,38 @@ typedef Elf32_Addr Elf32_Conflict; #define STT_PARISC_MILLICODE 13 /* Millicode function entry point. */ +/* Alpha specific declarations. */ + +/* Alpha relocs. */ + +#define R_ALPHA_NONE 0 /* No reloc */ +#define R_ALPHA_REFLONG 1 /* Direct 32 bit */ +#define R_ALPHA_REFQUAD 2 /* Direct 64 bit */ +#define R_ALPHA_GPREL32 3 /* GP relative 32 bit */ +#define R_ALPHA_LITERAL 4 /* GP relative 16 bit w/optimization */ +#define R_ALPHA_LITUSE 5 /* Optimization hint for LITERAL */ +#define R_ALPHA_GPDISP 6 /* Add displacement to GP */ +#define R_ALPHA_BRADDR 7 /* PC+4 relative 23 bit shifted */ +#define R_ALPHA_HINT 8 /* PC+4 relative 16 bit shifted */ +#define R_ALPHA_SREL16 9 /* PC relative 16 bit */ +#define R_ALPHA_SREL32 10 /* PC relative 32 bit */ +#define R_ALPHA_SREL64 11 /* PC relative 64 bit */ +#define R_ALPHA_OP_PUSH 12 /* OP stack push */ +#define R_ALPHA_OP_STORE 13 /* OP stack pop and store */ +#define R_ALPHA_OP_PSUB 14 /* OP stack subtract */ +#define R_ALPHA_OP_PRSHIFT 15 /* OP stack right shift */ +#define R_ALPHA_GPVALUE 16 +#define R_ALPHA_GPRELHIGH 17 +#define R_ALPHA_GPRELLOW 18 +#define R_ALPHA_IMMED_GP_16 19 +#define R_ALPHA_IMMED_GP_HI32 20 +#define R_ALPHA_IMMED_SCN_HI32 21 +#define R_ALPHA_IMMED_BR_HI32 22 +#define R_ALPHA_IMMED_LO32 23 +#define R_ALPHA_COPY 24 /* Copy symbol at runtime */ +#define R_ALPHA_GLOB_DAT 25 /* Create GOT entry */ +#define R_ALPHA_JMP_SLOT 26 /* Create PLT entry */ +#define R_ALPHA_RELATIVE 27 /* Adjust by program base */ + + #endif /* elf.h */ |