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File: [cvs.NetBSD.org] / src / sys / sys / exec_aout.h (download)
Revision 1.23, Mon Sep 13 10:31:44 1999 UTC (24 years, 7 months ago) by itojun
Merge in NetBSD/sh3 from cvs.kame.net repository. Tree structure: - sys/arch/sh3: sh3 generic code As commented, in-chip device drivers are put into sys/arch/sh3/dev. - sys/arch/evbsh3: sh3 evaluation boards (pure sh3 CPU, no fancy external HW) - sys/arch/mmeye: Brains mmEye, www.brains.co.jp MI source code includes couple of #ifdef for sh3-coff support. (sh3 uses coff or elf) Needs some more improvements, especialy in sys/arch/sh3/conf/files.sh3, to compile the tree (due to last minute tree structure change). |
/* $NetBSD: exec_aout.h,v 1.23 1999/09/13 10:31:44 itojun Exp $ */ /* * Copyright (c) 1993, 1994 Christopher G. Demetriou * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by Christopher G. Demetriou. * 4. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifndef _SYS_EXEC_AOUT_H_ #define _SYS_EXEC_AOUT_H_ #ifndef N_PAGSIZ #define N_PAGSIZ(ex) (__LDPGSZ) #endif /* * Header prepended to each a.out file. * only manipulate the a_midmag field via the * N_SETMAGIC/N_GET{MAGIC,MID,FLAG} macros below. */ struct exec { u_long a_midmag; /* htonl(flags<<26 | mid<<16 | magic) */ u_long a_text; /* text segment size */ u_long a_data; /* initialized data size */ u_long a_bss; /* uninitialized data size */ u_long a_syms; /* symbol table size */ u_long a_entry; /* entry point */ u_long a_trsize; /* text relocation size */ u_long a_drsize; /* data relocation size */ }; /* a_magic */ #define OMAGIC 0407 /* old impure format */ #define NMAGIC 0410 /* read-only text */ #define ZMAGIC 0413 /* demand load format */ #define QMAGIC 0314 /* "compact" demand load format; deprecated */ /* * a_mid - keep sorted in numerical order for sanity's sake * ensure that: 0 < mid < 0x3ff */ #define MID_ZERO 0 /* unknown - implementation dependent */ #define MID_SUN010 1 /* sun 68010/68020 binary */ #define MID_SUN020 2 /* sun 68020-only binary */ #define MID_PC386 100 /* 386 PC binary. (so quoth BFD) */ #define MID_HP200 200 /* hp200 (68010) BSD binary */ #define MID_I386 134 /* i386 BSD binary */ #define MID_M68K 135 /* m68k BSD binary with 8K page sizes */ #define MID_M68K4K 136 /* m68k BSD binary with 4K page sizes */ #define MID_NS32532 137 /* ns32532 */ #define MID_SPARC 138 /* sparc */ #define MID_PMAX 139 /* pmax */ #define MID_VAX1K 140 /* vax 1K page size binaries */ #define MID_ALPHA 141 /* Alpha BSD binary */ #define MID_MIPS 142 /* big-endian MIPS */ #define MID_ARM6 143 /* ARM6 */ #define MID_SH3 145 /* SH3 */ #define MID_POWERPC 149 /* big-endian PowerPC */ #define MID_VAX 150 /* vax */ #define MID_SPARC64 151 /* LP64 sparc */ #define MID_HP300 300 /* hp300 (68020+68881) BSD binary */ #define MID_HPUX 0x20C /* hp200/300 HP-UX binary */ #define MID_HPUX800 0x20B /* hp800 HP-UX binary */ /* * a_flags */ #define EX_DYNAMIC 0x20 #define EX_PIC 0x10 #define EX_DPMASK 0x30 /* * Interpretation of the (a_flags & EX_DPMASK) bits: * * 00 traditional executable or object file * 01 object file contains PIC code (set by `as -k') * 10 dynamic executable * 11 position independent executable image * (eg. a shared library) * */ /* * The a.out structure's a_midmag field is a network-byteorder encoding * of this int * FFFFFFmmmmmmmmmmMMMMMMMMMMMMMMMM * Where `F' is 6 bits of flag like EX_DYNAMIC, * `m' is 10 bits of machine-id like MID_I386, and * `M' is 16 bits worth of magic number, ie. ZMAGIC. * The macros below will set/get the needed fields. */ #define N_GETMAGIC(ex) \ ((((ex).a_midmag)&0xffff0000) ? \ (ntohl((u_int32_t)((ex).a_midmag))&0xffff) : ((ex).a_midmag)) #define N_GETMAGIC2(ex) \ ((((ex).a_midmag)&0xffff0000) ? \ (ntohl((u_int32_t)((ex).a_midmag))&0xffff) : (((ex).a_midmag) | 0x10000)) #define N_GETMID(ex) \ ((((ex).a_midmag)&0xffff0000) ? \ ((ntohl((u_int32_t)((ex).a_midmag))>>16)&0x03ff) : MID_ZERO) #define N_GETFLAG(ex) \ ((((ex).a_midmag)&0xffff0000) ? \ ((ntohl((u_int32_t)((ex).a_midmag))>>26)&0x3f) : 0) #define N_SETMAGIC(ex,mag,mid,flag) \ ((ex).a_midmag = htonl((u_int32_t) \ ((((flag)&0x3f)<<26)|(((mid)&0x03ff)<<16)|(((mag)&0xffff))))) #define N_ALIGN(ex,x) \ (N_GETMAGIC(ex) == ZMAGIC || N_GETMAGIC(ex) == QMAGIC ? \ ((x) + __LDPGSZ - 1) & ~(__LDPGSZ - 1) : (x)) /* Valid magic number check. */ #define N_BADMAG(ex) \ (N_GETMAGIC(ex) != NMAGIC && N_GETMAGIC(ex) != OMAGIC && \ N_GETMAGIC(ex) != ZMAGIC && N_GETMAGIC(ex) != QMAGIC) /* Address of the bottom of the text segment. */ #define N_TXTADDR(ex) (N_GETMAGIC2(ex) == (ZMAGIC|0x10000) ? 0 : __LDPGSZ) /* Address of the bottom of the data segment. */ #define N_DATADDR(ex) \ (N_GETMAGIC(ex) == OMAGIC ? N_TXTADDR(ex) + (ex).a_text : \ (N_TXTADDR(ex) + (ex).a_text + __LDPGSZ - 1) & ~(__LDPGSZ - 1)) /* Address of the bottom of the bss segment. */ #define N_BSSADDR(ex) \ (N_DATADDR(ex) + (ex).a_data) /* Text segment offset. */ #define N_TXTOFF(ex) \ ( N_GETMAGIC2(ex)==ZMAGIC || N_GETMAGIC2(ex)==(QMAGIC|0x10000) ? \ 0 : (N_GETMAGIC2(ex)==(ZMAGIC|0x10000) ? __LDPGSZ : \ sizeof(struct exec)) ) /* Data segment offset. */ #define N_DATOFF(ex) \ N_ALIGN(ex, N_TXTOFF(ex) + (ex).a_text) /* Text relocation table offset. */ #define N_TRELOFF(ex) \ (N_DATOFF(ex) + (ex).a_data) /* Data relocation table offset. */ #define N_DRELOFF(ex) \ (N_TRELOFF(ex) + (ex).a_trsize) /* Symbol table offset. */ #define N_SYMOFF(ex) \ (N_DRELOFF(ex) + (ex).a_drsize) /* String table offset. */ #define N_STROFF(ex) \ (N_SYMOFF(ex) + (ex).a_syms) #include <machine/aout_machdep.h> #ifdef _KERNEL /* the "a.out" format's entry in the exec switch */ int exec_aout_makecmds __P((struct proc *, struct exec_package *)); /* functions which prepare various a.out executable types */ /* * MI portion */ int exec_aout_prep_zmagic __P((struct proc *, struct exec_package *)); int exec_aout_prep_nmagic __P((struct proc *, struct exec_package *)); int exec_aout_prep_omagic __P((struct proc *, struct exec_package *)); int exec_aout_setup_stack __P((struct proc *, struct exec_package *)); /* For compatibility modules */ int exec_aout_prep_oldzmagic __P((struct proc *, struct exec_package *)); int exec_aout_prep_oldnmagic __P((struct proc *, struct exec_package *)); int exec_aout_prep_oldomagic __P((struct proc *, struct exec_package *)); /* * MD portion */ int cpu_exec_aout_makecmds __P((struct proc *, struct exec_package *)); #endif /* _KERNEL */ #endif /* !_SYS_EXEC_AOUT_H_ */