/[gxemul]/trunk/src/include/exec_aout.h
This is repository of my old source code which isn't updated any more. Go to git.rot13.org for current projects!
ViewVC logotype

Contents of /trunk/src/include/exec_aout.h

Parent Directory Parent Directory | Revision Log Revision Log


Revision 4 - (show annotations)
Mon Oct 8 16:18:00 2007 UTC (16 years, 5 months ago) by dpavlin
File MIME type: text/plain
File size: 7355 byte(s)
++ trunk/HISTORY	(local)
$Id: HISTORY,v 1.707 2005/04/27 16:37:33 debug Exp $
20050408	Some minor updates to the wdc. Linux now doesn't complain
		anymore if a disk is non-present.
20050409	Various minor fixes (a bintrans bug, and some other things).
		The wdc seems to work with Playstation2 emulation, but there
		is a _long_ annoying delay when disks are detected.
		Fixing a really important bintrans bug (when devices and RAM
		are mixed within 4KB pages), which was triggered with
		NetBSD/playstation2 kernels.
20050410	Adding a dummy dev_ps2_ether (just so that NetBSD doesn't
		complain as much during bootup).
		Symbols starting with '$' are now ignored.
		Renaming dev_ps2_ohci.c to dev_ohci.c, etc.
20050411	Moving the bintrans-cache-isolation check from cpu_mips.c to
		cpu_mips_coproc.c. (I thought this would give a speedup, but
		it's not noticable.)
		Better playstation2 sbus interrupt code.
		Skip ahead many ticks if the count register is read manually.
		(This increases the speed of delay-loops that simply read
		the count register.)
20050412	Updates to the playstation2 timer/interrupt code.
		Some other minor updates.
20050413	NetBSD/cobalt runs from a disk image :-) including userland;
		updating the documentation on how to install NetBSD/cobalt
		using NetBSD/pmax (!).
		Some minor bintrans updates (no real speed improvement) and
		other minor updates (playstation2 now uses the -o options).
20050414	Adding a dummy x86 (and AMD64) mode.
20050415	Adding some (32-bit and 16-bit) x86 instructions.
		Adding some initial support for non-SCSI, non-IDE floppy
		images. (The x86 mode can boot from these, more or less.)
		Moving the devices/ and include/ directories to src/devices/
		and src/include/, respectively.
20050416	Continuing on the x86 stuff. (Adding pc_bios.c and some simple
		support for software interrupts in 16-bit mode.)
20050417	Ripping out most of the x86 instruction decoding stuff, trying
		to rewrite it in a cleaner way.
		Disabling some of the least working CPU families in the
		configure script (sparc, x86, alpha, hppa), so that they are
		not enabled by default.
20050418	Trying to fix the bug which caused problems when turning on
		and off bintrans interactively, by flushing the bintrans cache
		whenever bintrans is manually (re)enabled.
20050419	Adding the 'lswi' ppc instruction.
		Minor updates to the x86 instruction decoding.
20050420	Renaming x86 register name indices from R_xx to X86_R_xx (this
		makes building on Tru64 nicer).
20050422	Adding a check for duplicate MIPS TLB entries on tlbwr/tlbwi.
20050427	Adding screenshots to guestoses.html.
		Some minor fixes and testing for the next release.

==============  RELEASE 0.3.2  ==============


1 /* gxemul: $Id: exec_aout.h,v 1.3 2005/03/05 12:34:02 debug Exp $ */
2
3 #ifndef __EXEC_AOUT_H
4 #define __EXEC_AOUT_H
5
6 /* $OpenBSD: exec_aout.h,v 1.9 1998/04/25 06:28:14 niklas Exp $ */
7 /* $NetBSD: exec_aout.h,v 1.15 1996/05/18 17:20:54 christos Exp $ */
8
9 /*
10 * Copyright (c) 1993, 1994 Christopher G. Demetriou
11 * All rights reserved.
12 *
13 * Redistribution and use in source and binary forms, with or without
14 * modification, are permitted provided that the following conditions
15 * are met:
16 * 1. Redistributions of source code must retain the above copyright
17 * notice, this list of conditions and the following disclaimer.
18 * 2. Redistributions in binary form must reproduce the above copyright
19 * notice, this list of conditions and the following disclaimer in the
20 * documentation and/or other materials provided with the distribution.
21 * 3. All advertising materials mentioning features or use of this software
22 * must display the following acknowledgement:
23 * This product includes software developed by Christopher G. Demetriou.
24 * 4. The name of the author may not be used to endorse or promote products
25 * derived from this software without specific prior written permission
26 *
27 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
28 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
29 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
30 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
31 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
32 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
33 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
34 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
35 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
36 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
37 */
38
39 #ifndef N_PAGSIZ
40 #define N_PAGSIZ(ex) (__LDPGSZ)
41 #endif
42
43 /*
44 * Header prepended to each a.out file.
45 * only manipulate the a_midmag field via the
46 * N_SETMAGIC/N_GET{MAGIC,MID,FLAG} macros below.
47 */
48 struct exec {
49 uint32_t a_midmag; /* htonl(flags<<26|mid<<16|magic) */
50 uint32_t a_text; /* text segment size */
51 uint32_t a_data; /* initialized data size */
52 uint32_t a_bss; /* uninitialized data size */
53 uint32_t a_syms; /* symbol table size */
54 uint32_t a_entry; /* entry point */
55 uint32_t a_trsize; /* text relocation size */
56 uint32_t a_drsize; /* data relocation size */
57 };
58
59 /* a_magic */
60 #define OMAGIC 0407 /* old impure format */
61 #define NMAGIC 0410 /* read-only text */
62 #define ZMAGIC 0413 /* demand load format */
63 #define QMAGIC 0314 /* "compact" demand load format; deprecated */
64
65 /*
66 * a_mid - keep sorted in numerical order for sanity's sake
67 * ensure that: 0 < mid < 0x3ff
68 */
69 #define MID_ZERO 0 /* unknown - implementation dependent */
70 #define MID_SUN010 1 /* sun 68010/68020 binary */
71 #define MID_SUN020 2 /* sun 68020-only binary */
72 #define MID_PC386 100 /* 386 PC binary. (so quoth BFD) */
73 #define MID_ROMPAOS 104 /* old IBM RT */
74 #define MID_I386 134 /* i386 BSD binary */
75 #define MID_M68K 135 /* m68k BSD binary with 8K page sizes */
76 #define MID_M68K4K 136 /* DO NOT USE: m68k BSD binary with 4K page sizes */
77 #define MID_NS32532 137 /* ns32532 */
78 #define MID_SPARC 138 /* sparc */
79 #define MID_PMAX 139 /* pmax */
80 #define MID_VAX 140 /* vax */
81 #define MID_ALPHA 141 /* Alpha BSD binary */
82 #define MID_MIPS 142 /* big-endian MIPS */
83 #define MID_ARM6 143 /* ARM6 */
84 #define MID_ROMP 149 /* IBM RT */
85 #define MID_M88K 151 /* m88k BSD binary */
86 #define MID_HP200 200 /* hp200 (68010) BSD binary */
87 #define MID_HP300 300 /* hp300 (68020+68881) BSD binary */
88 #define MID_HPUX 0x20C /* hp200/300 HP-UX binary */
89 #define MID_HPUX800 0x20B /* hp800 HP-UX binary */
90
91 /*
92 * a_flags
93 */
94 #define EX_DYNAMIC 0x20
95 #define EX_PIC 0x10
96 #define EX_DPMASK 0x30
97 /*
98 * Interpretation of the (a_flags & EX_DPMASK) bits:
99 *
100 * 00 traditional executable or object file
101 * 01 object file contains PIC code (set by `as -k')
102 * 10 dynamic executable
103 * 11 position independent executable image
104 * (eg. a shared library)
105 *
106 */
107
108 /*
109 * The a.out structure's a_midmag field is a network-byteorder encoding
110 * of this int
111 * FFFFFFmmmmmmmmmmMMMMMMMMMMMMMMMM
112 * Where `F' is 6 bits of flag like EX_DYNAMIC,
113 * `m' is 10 bits of machine-id like MID_I386, and
114 * `M' is 16 bits worth of magic number, ie. ZMAGIC.
115 * The macros below will set/get the needed fields.
116 */
117 #define N_GETMAGIC(ex) \
118 ( (((ex).a_midmag)&0xffff0000) ? (ntohl(((ex).a_midmag))&0xffff) : ((ex).a_midmag))
119 #define N_GETMAGIC2(ex) \
120 ( (((ex).a_midmag)&0xffff0000) ? (ntohl(((ex).a_midmag))&0xffff) : \
121 (((ex).a_midmag) | 0x10000) )
122 #define N_GETMID(ex) \
123 ( (((ex).a_midmag)&0xffff0000) ? ((ntohl(((ex).a_midmag))>>16)&0x03ff) : MID_ZERO )
124 #define N_GETFLAG(ex) \
125 ( (((ex).a_midmag)&0xffff0000) ? ((ntohl(((ex).a_midmag))>>26)&0x3f) : 0 )
126 #define N_SETMAGIC(ex,mag,mid,flag) \
127 ( (ex).a_midmag = htonl( (((flag)&0x3f)<<26) | (((mid)&0x03ff)<<16) | \
128 (((mag)&0xffff)) ) )
129
130 #define N_ALIGN(ex,x) \
131 (N_GETMAGIC(ex) == ZMAGIC || N_GETMAGIC(ex) == QMAGIC ? \
132 ((x) + __LDPGSZ - 1) & ~(__LDPGSZ - 1) : (x))
133
134 /* Valid magic number check. */
135 #define N_BADMAG(ex) \
136 (N_GETMAGIC(ex) != NMAGIC && N_GETMAGIC(ex) != OMAGIC && \
137 N_GETMAGIC(ex) != ZMAGIC && N_GETMAGIC(ex) != QMAGIC)
138
139 /* Address of the bottom of the text segment. */
140 #define N_TXTADDR(ex) (N_GETMAGIC2(ex) == (ZMAGIC|0x10000) ? 0 : __LDPGSZ)
141
142 /* Address of the bottom of the data segment. */
143 #define N_DATADDR(ex) \
144 (N_GETMAGIC(ex) == OMAGIC ? N_TXTADDR(ex) + (ex).a_text : \
145 (N_TXTADDR(ex) + (ex).a_text + __LDPGSZ - 1) & ~(__LDPGSZ - 1))
146
147 /* Address of the bottom of the bss segment. */
148 #define N_BSSADDR(ex) \
149 (N_DATADDR(ex) + (ex).a_data)
150
151 /* Text segment offset. */
152 #define N_TXTOFF(ex) \
153 ( N_GETMAGIC2(ex)==ZMAGIC || N_GETMAGIC2(ex)==(QMAGIC|0x10000) ? \
154 0 : (N_GETMAGIC2(ex)==(ZMAGIC|0x10000) ? __LDPGSZ : \
155 sizeof(struct exec)) )
156
157 /* Data segment offset. */
158 #define N_DATOFF(ex) \
159 N_ALIGN(ex, N_TXTOFF(ex) + (ex).a_text)
160
161 /* Text relocation table offset. */
162 #define N_TRELOFF(ex) \
163 (N_DATOFF(ex) + (ex).a_data)
164
165 /* Data relocation table offset. */
166 #define N_DRELOFF(ex) \
167 (N_TRELOFF(ex) + (ex).a_trsize)
168
169 /* Symbol table offset. */
170 #define N_SYMOFF(ex) \
171 (N_DRELOFF(ex) + (ex).a_drsize)
172
173 /* String table offset. */
174 #define N_STROFF(ex) \
175 (N_SYMOFF(ex) + (ex).a_syms)
176
177
178 #ifdef _KERNEL
179
180 /* the "a.out" format's entry in the exec switch */
181 int exec_aout_makecmds __P((struct proc *, struct exec_package *));
182
183 /* functions which prepare various a.out executable types */
184 /*
185 * MI portion
186 */
187 int exec_aout_prep_zmagic __P((struct proc *, struct exec_package *));
188 int exec_aout_prep_nmagic __P((struct proc *, struct exec_package *));
189 int exec_aout_prep_omagic __P((struct proc *, struct exec_package *));
190
191 /* For compatibility modules */
192 int exec_aout_prep_oldzmagic __P((struct proc *, struct exec_package *));
193 int exec_aout_prep_oldnmagic __P((struct proc *, struct exec_package *));
194 int exec_aout_prep_oldomagic __P((struct proc *, struct exec_package *));
195
196 /*
197 * MD portion
198 */
199 int cpu_exec_aout_makecmds __P((struct proc *, struct exec_package *));
200
201 #endif /* _KERNEL */
202
203 #endif /* __EXEC_AOUT_H */
204

  ViewVC Help
Powered by ViewVC 1.1.26