78 lines
2.5 KiB
C
78 lines
2.5 KiB
C
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#ifndef _LIBELF_H_
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#define _LIBELF_H_
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#include <linux/elf.h>
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#include <linux/module.h>
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struct ELFinfo {
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uint8_t *base; /* Base address of ELF image in memory */
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Elf_Ehdr *header; /* Base address of ELF header in memory */
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uint32_t size; /* Total size of ELF data in bytes */
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uint32_t mmapped; /* Set to 1 if ELF file mmapped */
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Elf_Shdr *secbase; /* Section headers base address */
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Elf32_Phdr *progbase; /* Program headers base address */
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char *strtab; /* String table for section headers */
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uint32_t strtabsize; /* Size of string table */
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uint32_t strsecindex; /* Section header index for strings */
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uint32_t numsections; /* Number of sections */
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uint32_t numpheaders; /* Number of program headers */
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};
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struct typess {
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uint32_t val;
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char *name;
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};
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#define ELF_TYPES {0, "NULL"}, \
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{1, "PROGBITS"}, \
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{2, "SYMTAB"}, \
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{3, "STRTAB"}, \
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{4, "RELA"}, \
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{5, "HASH"}, \
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{6, "DYNAMIC"}, \
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{7, "NOTE"}, \
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{8, "NOBITS"}, \
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{9, "REL"}, \
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{10, "SHLIB"}, \
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{11, "DYNSYM"}, \
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{14, "INIT_ARRAY"}, \
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{15, "FINI_ARRAY"}, \
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{16, "PREINIT_ARRAY"}, \
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{17, "GROUP"}, \
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{18, "SYMTAB_SHNDX"}, \
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{0x6ffffff6, "GNU_HASH"}, \
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{0x6ffffff7, "GNU_PRELINK_LIBLIST"}, \
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{0x6ffffff8, "CHECKSUM"}, \
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{0x6ffffffd, "GNU version definitions"}, \
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{0x6ffffffe, "GNU version needs"}, \
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{0x6fffffff, "GNU version symbol table"}, \
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{0xffffffff, NULL}
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extern unsigned int ELF_checkIdent(Elf32_Ehdr *);
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extern struct ELFinfo *ELF_initFromMem(uint8_t *, uint32_t, int);
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extern uint32_t ELF_free(struct ELFinfo *);
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extern Elf32_Shdr *ELF_getSectionByIndex(const struct ELFinfo *, uint32_t);
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extern Elf32_Shdr *ELF_getSectionByNameCheck(const struct ELFinfo *,
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const char *, uint32_t *, int, int);
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extern void ELF_printHeaderInfo(const struct ELFinfo *);
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extern void ELF_printSectionInfo(const struct ELFinfo *);
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extern unsigned long ELF_findBaseAddrCheck(Elf32_Ehdr *, Elf32_Shdr *,
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unsigned long *, int, int);
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extern int ELF_searchSectionType(const struct ELFinfo *, const char *, int *);
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extern unsigned long ELF_checkPhMemSize(const struct ELFinfo *);
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extern unsigned long ELF_checkPhMinVaddr(const struct ELFinfo *);
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static inline Elf32_Shdr *ELF_getSectionByName(const struct ELFinfo *elfinfo,
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const char *secname, uint32_t *index)
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{
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return ELF_getSectionByNameCheck(elfinfo, secname, index,
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SHF_NULL, SHT_NULL);
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}
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static inline unsigned long ELF_findBaseAddr(Elf32_Ehdr *hdr,
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Elf32_Shdr *sechdrs, unsigned long *base)
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{
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return ELF_findBaseAddrCheck(hdr, sechdrs, base, SHF_NULL, SHT_NULL);
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}
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#endif /* _LIBELF_H_ */
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