| 1 | /* |
| 2 | * Format of an a.out header |
| 3 | */ |
| 4 | |
| 5 | struct exec { /* a.out header */ |
| 6 | int a_magic; /* magic number */ |
| 7 | unsigned a_text; /* size of text segment */ |
| 8 | unsigned a_data; /* size of initialized data */ |
| 9 | unsigned a_bss; /* size of uninitialized data */ |
| 10 | unsigned a_syms; /* size of symbol table */ |
| 11 | unsigned a_entry; /* entry point */ |
| 12 | unsigned a_trsize; /* size of text relocation */ |
| 13 | unsigned a_drsize; /* size of data relocation */ |
| 14 | }; |
| 15 | |
| 16 | #define A_MAGIC1 0407 /* normal */ |
| 17 | #define A_MAGIC2 0410 /* read-only text */ |
| 18 | #define A_MAGIC3 0411 /* separated I&D */ |
| 19 | #define A_MAGIC4 0405 /* overlay */ |