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ELF: Difference between revisions
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The most common architectures are in bold.
An example C struct declaration for the file header (from Levine 1999) would look like this:
struct ELF_fh {
char magic[4] = "\177ELF"; // magic number
char class; // address size, 1 = 32 bit, 2 = 64 bit
char byteorder; // 1 = little-endian, 2 = big-endian
char hversion; // header version, always 1
char pad[9]; short filetype; // file type: 1 = relocatable, 2 = executable,
// 3 = shared object, 4 = core image
short archtype; // 2 = SPARC, 3 = x86, 4 = 68K, etc.
int fversion; // file version, always 1
int entry; // entry point if executable
int phdrpos; // file position of program header or 0
int shdrpos; // file position of section header or 0
int flags; // architecture specific flags, usually 0
short hdrsize; // size of this ELF header
short phdrent; // size of an entry in program header
short phdrcnt; // number of entries in program header or 0
short shdrent; // size of an entry in section header
short phdrcnt; // number of entries in section header or 0
short strsec; // section number that contains section name strings
};
=== Program header ===
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