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drasko |
/*
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* Definitions for ELF Sections
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* Based on Portable Formats Specification v1.1
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*
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* Copyright (C) 2008 Bahadir Balban
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*/
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#ifndef __ELFSECT_H__
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#define __ELFSECT_H__
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#include <l4/types.h>
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/* Special section indices */
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#define SHN_UNDEF 0
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#define SHN_LORESERVE 0xFF00
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#define SHN_LOPROC 0xFF00
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#define SHN_HIPROC 0xFF1F
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#define SHN_ABS 0xFFF1
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#define SHN_COMMON 0xFFF2
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#define SHN_HIRESERVE 0xFFFF
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struct elf_section_header {
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u32 sh_name; /* Index to section header str table for name */
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u32 sh_type; /* Categorises section's semantics */
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u32 sh_flags; /* Flags that define various attributes */
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u32 sh_addr; /* Virtual address for section */
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u32 sh_offset; /* Offset to contents from file beginning */
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u32 sh_size; /* Size of section (note SHT_NOBITS) */
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u32 sh_link;
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u32 sh_info; /* Extra section info */
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u32 sh_addralign; /* Section alignment in power of 2 */
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u32 sh_entsize; /* Size of each entry if fixed */
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} __attribute__((__packed__));
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/* Section type codes */
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#define SHT_NULL 0 /* Inactive */
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#define SHT_PROGBITS 1 /* Program contents */
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#define SHT_SYMTAB 2 /* Symbol table */
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#define SHT_STRTAB 3 /* String table */
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#define SHT_RELA 4 /* Relocation entries */
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#define SHT_HASH 5 /* Symbol hash table */
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#define SHT_DYNAMIC 6 /* Dynamic linking info */
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#define SHT_NOTE 7 /* Optional, additional info */
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#define SHT_NOBITS 8 /* Does not occupy file space */
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#define SHT_REL 9 /* Relocation entries */
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#define SHT_SHLIB 10 /* Reserved */
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#define SHT_DYNSYM 11 /* Symbols for dynamic linking */
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#define SHT_LOPROC 0x70000000 /* Reserved for processors */
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#define SHT_HIPROC 0x7FFFFFFF /* Reserved for processors */
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#define SHT_LOUSER 0x80000000 /* Reserved for user progs */
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#define SHT_HIUSER 0xFFFFFFFF /* Reserved for user progs */
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/* Section attribute flags */
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#define SHF_WRITE (1 << 0) /* Writeable */
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#define SHF_ALLOC (1 << 1) /* Occupies actual memory */
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#define SHF_EXECINSTR (1 << 2) /* Executable */
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#define SHF_MASCPROC 0xF0000000 /* Reserved for processors */
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#endif /* __ELFSECT_H__ */
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