+#define BSDHDRSIZE 0x20 // Size of BSD header
+#define HDRSIZE 0x1C // Size of Alcyon header
+
+//
+// Alcyon symbol flags
+//
+#define AL_DEFINED 0x8000
+#define AL_EQUATED 0x4000
+#define AL_GLOBAL 0x2000
+#define AL_EQUREG 0x1000
+#define AL_EXTERN 0x0800
+#define AL_DATA 0x0400
+#define AL_TEXT 0x0200
+#define AL_BSS 0x0100
+#define AL_FILE 0x0080
+
+enum ELFSectionNames
+{
+ ES_NULL, ES_TEXT, ES_DATA, ES_BSS, ES_RELATEXT, ES_RELADATA, ES_SHSTRTAB,
+ ES_SYMTAB, ES_STRTAB
+};
+
+//
+// ELF special section indices (field st_shndx)
+// Lifted from glibc (https://sourceware.org/git/?p=glibc.git;a=blob;f=elf/elf.h)
+//
+#define SHN_UNDEF 0 /* Undefined section */
+#define SHN_ABS 0xFFF1 /* Associated symbol is absolute */
+#define SHN_COMMON 0xFFF2 /* Associated symbol is common */
+
+// Exported variables.
+extern uint8_t * objImage;
+extern int elfHdrNum[];
+extern uint32_t extraSyms;