--- /dev/null
+/* ELF support for BFD.
+ Copyright (C) 1991, 1992 Free Software Foundation, Inc.
+
+ Written by Fred Fish @ Cygnus Support, from information published
+ in "UNIX System V Release 4, Programmers Guide: ANSI C and
+ Programming Support Tools".
+
+This file is part of BFD, the Binary File Descriptor library.
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+
+/* This file is part of ELF support for BFD, and contains the portions
+ that are common to both the internal and external representations.
+ For example, ELFMAG0 is the byte 0x7F in both the internal (in-memory)
+ and external (in-file) representations. */
+
+
+/* Fields in e_ident[] */
+
+#define EI_MAG0 0 /* File identification byte 0 index */
+#define ELFMAG0 0x7F /* Magic number byte 0 */
+
+#define EI_MAG1 1 /* File identification byte 1 index */
+#define ELFMAG1 'E' /* Magic number byte 1 */
+
+#define EI_MAG2 2 /* File identification byte 2 index */
+#define ELFMAG2 'L' /* Magic number byte 2 */
+
+#define EI_MAG3 3 /* File identification byte 3 index */
+#define ELFMAG3 'F' /* Magic number byte 3 */
+
+#define EI_CLASS 4 /* File class */
+#define ELFCLASSNONE 0 /* Invalid class */
+#define ELFCLASS32 1 /* 32-bit objects */
+#define ELFCLASS64 2 /* 64-bit objects */
+
+#define EI_DATA 5 /* Data encoding */
+#define ELFDATANONE 0 /* Invalid data encoding */
+#define ELFDATA2LSB 1 /* 2's complement, little endian */
+#define ELFDATA2MSB 2 /* 2's complement, big endian */
+
+#define EI_VERSION 6 /* File version */
+
+#define EI_PAD 7 /* Start of padding bytes */
+
+
+/* Values for e_type, which identifies the object file 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 e_machine, which identifies the architecture */
+
+#define EM_NONE 0 /* No machine */
+#define EM_M32 1 /* AT&T WE 32100 */
+#define EM_SPARC 2 /* SUN SPARC */
+#define EM_386 3 /* Intel 80386 */
+#define EM_68K 4 /* Motorola m68k family */
+#define EM_88K 5 /* Motorola m88k family */
+#define EM_860 7 /* Intel 80860 */
+#define EM_MIPS 8 /* MIPS R3000 */
+
+/* Values for e_version */
+
+#define EV_NONE 0 /* Invalid ELF version */
+#define EV_CURRENT 1 /* Current version */
+
+/* Values for program header, p_type field */
+
+#define PT_NULL 0 /* Program header table entry unused */
+#define PT_LOAD 1 /* Loadable program segment */
+#define PT_DYNAMIC 2 /* Dynamic linking information */
+#define PT_INTERP 3 /* Program interpreter */
+#define PT_NOTE 4 /* Auxiliary information */
+#define PT_SHLIB 5 /* Reserved, unspecified semantics */
+#define PT_PHDR 6 /* Entry for header table itself */
+#define PT_LOPROC 0x70000000 /* Processor-specific */
+#define PT_HIPROC 0x7FFFFFFF /* Processor-specific */
+
+/* Program segment permissions, in program header p_flags field */
+
+#define PF_X (1 << 0) /* Segment is executable */
+#define PF_W (1 << 1) /* Segment is writable */
+#define PF_R (1 << 2) /* Segment is readable */
+#define PF_MASKPROC 0xF0000000 /* Processor-specific reserved bits */
+
+/* Values for section header, sh_type field */
+
+#define SHT_NULL 0 /* Section header table entry unused */
+#define SHT_PROGBITS 1 /* Program specific (private) data */
+#define SHT_SYMTAB 2 /* Link editing symbol table */
+#define SHT_STRTAB 3 /* A string table */
+#define SHT_RELA 4 /* Relocation entries with addends */
+#define SHT_HASH 5 /* A symbol hash table */
+#define SHT_DYNAMIC 6 /* Information for dynamic linking */
+#define SHT_NOTE 7 /* Information that marks file */
+#define SHT_NOBITS 8 /* Section occupies no space in file */
+#define SHT_REL 9 /* Relocation entries, no addends */
+#define SHT_SHLIB 10 /* Reserved, unspecified semantics */
+#define SHT_DYNSYM 11 /* Dynamic linking symbol table */
+#define SHT_BEPROGBITS 12 /* Possibly nonstandard section type
+ for i860 processors operating in big
+ endian mode. This section is used
+ for code while SHT_PROGBITS is used
+ for data. */
+#define SHT_LOPROC 0x70000000 /* Processor-specific semantics, lo */
+#define SHT_HIPROC 0x7FFFFFFF /* Processor-specific semantics, hi */
+#define SHT_LOUSER 0x80000000 /* Application-specific semantics */
+#define SHT_HIUSER 0x8FFFFFFF /* Application-specific semantics */
+
+/* Values for section header, sh_flags field */
+
+#define SHF_WRITE (1 << 0) /* Writable data during execution */
+#define SHF_ALLOC (1 << 1) /* Occupies memory during execution */
+#define SHF_EXECINSTR (1 << 2) /* Executable machine instructions */
+#define SHF_MASKPROC 0xF0000000 /* Processor-specific semantics */
+
+/* Values of note segment descriptor types for core files. */
+
+#define NT_PRSTATUS 1 /* Contains copy of prstatus struct */
+#define NT_FPREGSET 2 /* Contains copy of fpregset struct */
+#define NT_PRPSINFO 3 /* Contains copy of prpsinfo struct */
+
+/* These three macros disassemble and assemble a symbol table st_info field,
+ which contains the symbol binding and symbol type. The STB_ and STT_
+ defines identify the binding and type. */
+
+#define ELF_ST_BIND(val) (((unsigned int)(val)) >> 4)
+#define ELF_ST_TYPE(val) ((val) & 0xF)
+#define ELF_ST_INFO(bind,type) (((bind) << 4) + ((type) & 0xF))
+
+#define STB_LOCAL 0 /* Symbol not visible outside obj */
+#define STB_GLOBAL 1 /* Symbol visible outside obj */
+#define STB_WEAK 2 /* Like globals, lower precedence */
+#define STB_LOPROC 13 /* Application-specific semantics */
+#define STB_HIPROC 15 /* Application-specific semantics */
+
+#define STT_NOTYPE 0 /* Symbol type is unspecified */
+#define STT_OBJECT 1 /* Symbol is a data object */
+#define STT_FUNC 2 /* Symbol is a code object */
+#define STT_SECTION 3 /* Symbol associated with a section */
+#define STT_FILE 4 /* Symbol gives a file name */
+#define STT_LOPROC 13 /* Application-specific semantics */
+#define STT_HIPROC 15 /* Application-specific semantics */
+
+/* Special section indices, which may show up in st_shndx fields, among
+ other places. */
+
+#define SHN_UNDEF 0 /* Undefined section reference */
+#define SHN_LORESERV 0xFF00 /* Begin range of reserved indices */
+#define SHN_LOPROC 0xFF00 /* Begin range of appl-specific */
+#define SHN_HIPROC 0xFF1F /* End range of appl-specific */
+#define SHN_ABS 0xFFF1 /* Associated symbol is absolute */
+#define SHN_COMMON 0xFFF2 /* Associated symbol is in common */
+#define SHN_HIRESERVE 0xFFFF /* End range of reserved indices */
+
+/* relocation info handling macros */
+
+#define ELF_R_SYM(i) ((i)>>8)
+#define ELF_R_TYPE(i) ((unsigned char)(i))
+#define ELF_R_INFO(s,t) (((s)<<8)+(unsigned char)(t))
projects / deliverable / binutils-gdb.git / commitdiff
