123413Smckusick /* 229024Smckusick * Copyright (c) 1982, 1986 Regents of the University of California. 323413Smckusick * All rights reserved. The Berkeley software License Agreement 423413Smckusick * specifies the terms and conditions for redistribution. 523413Smckusick * 6*41498Smckusick * @(#)exec.h 7.2 (Berkeley) 05/09/90 723413Smckusick */ 816744Ssam 916744Ssam /* 1016744Ssam * Header prepended to each a.out file. 1116744Ssam */ 1216744Ssam struct exec { 13*41498Smckusick #if !defined(vax) && !defined(tahoe) 14*41498Smckusick unsigned short a_mid; /* machine ID */ 15*41498Smckusick unsigned short a_magic; /* magic number */ 16*41498Smckusick #else 17*41498Smckusick long a_magic; /* magic number */ 18*41498Smckusick #endif 1916744Ssam unsigned long a_text; /* size of text segment */ 2016744Ssam unsigned long a_data; /* size of initialized data */ 2116744Ssam unsigned long a_bss; /* size of uninitialized data */ 2216744Ssam unsigned long a_syms; /* size of symbol table */ 2316744Ssam unsigned long a_entry; /* entry point */ 2416744Ssam unsigned long a_trsize; /* size of text relocation */ 2516744Ssam unsigned long a_drsize; /* size of data relocation */ 2616744Ssam }; 27*41498Smckusick #define a_machtype a_mid /* SUN compatibility */ 2816744Ssam 29*41498Smckusick /* a_magic */ 3016744Ssam #define OMAGIC 0407 /* old impure format */ 3116744Ssam #define NMAGIC 0410 /* read-only text */ 3216744Ssam #define ZMAGIC 0413 /* demand load format */ 33*41498Smckusick 34*41498Smckusick /* a_mid */ 35*41498Smckusick #define MID_ZERO 0 /* unknown - implementation dependent */ 36*41498Smckusick #define MID_SUN010 1 /* sun 68010/68020 binary */ 37*41498Smckusick #define MID_SUN020 2 /* sun 68020-only binary */ 38*41498Smckusick #define MID_HP200 200 /* hp200 (68010) BSD binary */ 39*41498Smckusick #define MID_HP300 300 /* hp300 (68020+68881) BSD binary */ 40*41498Smckusick #define MID_HPUX 0x20C /* hp200/300 HP-UX binary */ 41*41498Smckusick #define MID_HPUX800 0x20B /* hp800 HP-UX binary */ 42