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// Format of an ELF executable file
#define ELF_MAGIC 0x464C457FU // "\x7FELF" in little endian
// File header
struct elfhdr {
uint magic; // must equal ELF_MAGIC
uchar elf[12];
ushort type;
ushort machine;
uint version;
uint entry;
uint phoff;
uint shoff;
uint flags;
ushort ehsize;
ushort phentsize;
ushort phnum;
ushort shentsize;
ushort shnum;
ushort shstrndx;
};
// Program section header
struct proghdr {
uint type;
uint off;
uint vaddr;
uint paddr;
uint filesz;
uint memsz;
uint flags;
uint align;
};
// Values for Proghdr type
#define ELF_PROG_LOAD 1
// Flag bits for Proghdr flags
#define ELF_PROG_FLAG_EXEC 1
#define ELF_PROG_FLAG_WRITE 2
#define ELF_PROG_FLAG_READ 4
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