Added elf loading and test app

1 files changed, 61 insertions, 0 deletions

diff --git a/src/inc/elf.h b/src/inc/elf.h
new file mode 100644
index 0000000..c10ba4e
--- /dev/null
+++ b/src/inc/elf.h
@@ -0,0 +1,61 @@
+// MIT License, Copyright (c) 2020 Marvin Borner
+
+#ifndef ELF_H
+#define ELF_H
+
+#include <def.h>
+
+#define ELF_MAG 0x7F // 0
+#define ELF_32 1 // 4: 32-bit Architecture
+#define ELF_LITTLE 1 // 5: Little Endian
+#define ELF_CURRENT 1 // 6: ELF Current Version
+#define ELF_386 3 // header->machine x86 machine type
+
+#define ET_NONE 0 // Unkown type
+#define ET_REL 1 // Relocatable file
+#define ET_EXEC 2 // Executable file
+
+struct elf_header {
+	u8 ident[16];
+	u16 type;
+	u16 machine;
+	u32 version;
+	u32 entry;
+	u32 phoff;
+	u32 shoff;
+	u32 flags;
+	u16 ehsize;
+	u16 phentsize;
+	u16 phnum;
+	u16 shentsize;
+	u16 shnum;
+	u16 shstrndx;
+};
+
+struct elf_section_header {
+	u32 name;
+	u32 type;
+	u32 flags;
+	u32 addr;
+	u32 offset;
+	u32 size;
+	u32 link;
+	u32 info;
+	u32 addralign;
+	u32 entsize;
+};
+
+struct elf_program_header {
+	u32 type;
+	u32 offset;
+	u32 vaddr;
+	u32 paddr;
+	u32 filesz;
+	u32 memsz;
+	u32 flags;
+	u32 align;
+};
+
+void elf_load(char *path);
+
+#endif