1 files changed, 121 insertions, 0 deletions
diff --git a/fesvr/elf.h b/fesvr/elf.h
new file mode 100644
index 0000000..b66038d
--- /dev/null
+++ b/fesvr/elf.h
@@ -0,0 +1,121 @@
+// See LICENSE for details.
+
+#ifndef _ELF_H
+#define _ELF_H
+
+#include <stdint.h>
+
+#define IS_ELF(hdr) \
+  ((hdr).e_ident[0] == 0x7f && (hdr).e_ident[1] == 'E' && \
+   (hdr).e_ident[2] == 'L'  && (hdr).e_ident[3] == 'F')
+
+#define IS_ELF32(hdr) (IS_ELF(hdr) && (hdr).e_ident[4] == 1)
+#define IS_ELF64(hdr) (IS_ELF(hdr) && (hdr).e_ident[4] == 2)
+
+#define PT_LOAD 1
+
+#define SHT_NOBITS 8
+
+typedef struct {
+  uint8_t  e_ident[16];
+  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;
+} Elf32_Ehdr;
+
+typedef struct {
+  uint32_t sh_name;
+  uint32_t sh_type;
+  uint32_t sh_flags;
+  uint32_t sh_addr;
+  uint32_t sh_offset;
+  uint32_t sh_size;
+  uint32_t sh_link;
+  uint32_t sh_info;
+  uint32_t sh_addralign;
+  uint32_t sh_entsize;
+} Elf32_Shdr;
+
+typedef struct
+{
+  uint32_t p_type;
+  uint32_t p_offset;
+  uint32_t p_vaddr;
+  uint32_t p_paddr;
+  uint32_t p_filesz;
+  uint32_t p_memsz;
+  uint32_t p_flags;
+  uint32_t p_align;
+} Elf32_Phdr;
+
+typedef struct
+{
+  uint32_t st_name;
+  uint32_t st_value;
+  uint32_t st_size;
+  uint8_t  st_info;
+  uint8_t  st_other;
+  uint16_t st_shndx;
+} Elf32_Sym;
+
+typedef struct {
+  uint8_t  e_ident[16];
+  uint16_t e_type;
+  uint16_t e_machine;
+  uint32_t e_version;
+  uint64_t e_entry;
+  uint64_t e_phoff;
+  uint64_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;
+} Elf64_Ehdr;
+
+typedef struct {
+  uint32_t sh_name;
+  uint32_t sh_type;
+  uint64_t sh_flags;
+  uint64_t sh_addr;
+  uint64_t sh_offset;
+  uint64_t sh_size;
+  uint32_t sh_link;
+  uint32_t sh_info;
+  uint64_t sh_addralign;
+  uint64_t sh_entsize;
+} Elf64_Shdr;
+
+typedef struct {
+  uint32_t p_type;
+  uint32_t p_flags;
+  uint64_t p_offset;
+  uint64_t p_vaddr;
+  uint64_t p_paddr;
+  uint64_t p_filesz;
+  uint64_t p_memsz;
+  uint64_t p_align;
+} Elf64_Phdr;
+
+typedef struct {
+  uint32_t st_name;
+  uint8_t  st_info;
+  uint8_t  st_other;
+  uint16_t st_shndx;
+  uint64_t st_value;
+  uint64_t st_size;
+} Elf64_Sym;
+
+#endif