Initial Implementation of ELF

1 files changed, 54 insertions, 0 deletions

diff --git a/elf.h b/elf.h
new file mode 100755
index 0000000..953f748
--- /dev/null
+++ b/elf.h
@@ -0,0 +1,54 @@
+#ifndef ELF_H
+#define ELF_H
+
+#include <stdio.h>
+#include <stdint.h>
+#include <stdbool.h>
+
+#define EI_NIDENT		16
+#define MIPS			0x08
+#define PF_READ			4
+#define PF_WRITE		2
+#define PF_EXEC			1
+#define _LITTLE_ENDIAN_	0x01
+#define _BIG_ENDIAN_	0x02
+#define ELF_VERSION		0x01
+#define BIT_WIDTH		0x01	// 32-bit Format
+
+
+enum {ET_NONE, ET_REL, ET_EXEC, ET_DYN, ET_CORE};
+enum {PT_NULL, PT_LOAD, PT_DYNAMIC, PT_INTERP, PT_NOTE, PT_SHLIB, PT_TLS};
+
+typedef struct {
+	uint8_t e_ident[EI_NIDENT];
+	uint16_t e_type;
+	uint16_t e_machine;
+	uint32_t e_version;
+	uint32_t e_entry;
+	uint32_t e_phoff;
+	uint32_t e_shoff;
+	uint32_t e_flags;
+	uint16_t e_ehsize;
+	uint16_t e_phentsize;
+	uint16_t e_phnum;
+	uint16_t e_shentsize;
+	uint16_t e_shnum;
+	uint16_t e_shstrndx;
+} ElfHeader_t;
+
+typedef struct {
+	uint32_t ptype;
+	uint32_t offset;
+	uint32_t vaddr;
+	uint32_t paddr;
+	uint32_t filesz;
+	uint32_t memsz;
+	uint32_t flags;
+	uint32_t align;
+} ProgramHeader_t;
+
+ElfHeader_t ReadElf(FILE *fp);
+bool ValidateElf(ElfHeader_t e);
+void ReadProgramHeader(size_t n, ProgramHeader_t p[n], FILE *fp);
+
+#endif