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Root/branches/rewrite/i386/libsaio/console.c

Source at commit 1066 created 12 years 9 months ago.
By meklort, Removing even more code...
1/*␊
2 * Copyright (c) 1999-2003 Apple Computer, Inc. All rights reserved.␊
3 *␊
4 * @APPLE_LICENSE_HEADER_START@␊
5 * ␊
6 * Portions Copyright (c) 1999-2003 Apple Computer, Inc. All Rights␊
7 * Reserved. This file contains Original Code and/or Modifications of␊
8 * Original Code as defined in and that are subject to the Apple Public␊
9 * Source License Version 2.0 (the "License"). You may not use this file␊
10 * except in compliance with the License. Please obtain a copy of the␊
11 * License at http://www.apple.com/publicsource and read it before using␊
12 * this file.␊
13 * ␊
14 * The Original Code and all software distributed under the License are␊
15 * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER␊
16 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,␊
17 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,␊
18 * FITNESS FOR A PARTICULAR PURPOSE OR NON- INFRINGEMENT. Please see the␊
19 * License for the specific language governing rights and limitations␊
20 * under the License.␊
21 * ␊
22 * @APPLE_LICENSE_HEADER_END@␊
23 */␊
24/* ␊
25 * Mach Operating System␊
26 * Copyright (c) 1990 Carnegie-Mellon University␊
27 * Copyright (c) 1989 Carnegie-Mellon University␊
28 * All rights reserved. The CMU software License Agreement specifies␊
29 * the terms and conditions for use and redistribution.␊
30 */␊
31␊
32/*␊
33 * ␉␉␉INTEL CORPORATION PROPRIETARY INFORMATION␊
34 *␊
35 *␉This software is supplied under the terms of a license agreement or ␊
36 *␉nondisclosure agreement with Intel Corporation and may not be copied ␊
37 *␉nor disclosed except in accordance with the terms of that agreement.␊
38 *␊
39 *␉Copyright 1988, 1989 Intel Corporation␊
40 */␊
41␊
42/*␊
43 * Copyright 1993 NeXT, Inc.␊
44 * All rights reserved.␊
45 */␊
46␊
47#include "libsaio.h"␊
48#include <vers.h>␊
49␊
50bool gVerboseMode;␊
51bool gErrors;␊
52␊
53/*␊
54 * Azi: Doubled available log size; this seems to fix some hangs and instant reboots caused by␊
55 * booting with -f (ignore caches). 96kb are enough to hold full log, booting with -f; even so,␊
56 * this depends on how much we "play" at the boot prompt and with what patches we're playing,␊
57 * depending on how much they print to the log.␊
58 *␉␊
59 * Kabyl: BooterLog␊
60 */␊
61#define BOOTER_LOG_SIZE␉(128 * 1024)␊
62#define SAFE_LOG_SIZE␉134␊
63␊
64char *msgbuf = 0;␊
65char *cursor = 0;␊
66␊
67struct putc_info //Azi: exists on gui.c & printf.c␊
68{␊
69 char * str;␊
70 char * last_str;␊
71};␊
72␊
73static int␊
74sputc(int c, struct putc_info * pi) //Azi: same as above␊
75{␊
76␉if (pi->last_str)␊
77␉if (pi->str == pi->last_str)␊
78␉{␊
79␉␉*(pi->str) = '\0';␊
80␉␉return 0;␊
81␉}␊
82␉*(pi->str)++ = c;␊
83 return c;␊
84}␊
85␊
86void initBooterLog(void)␊
87{␊
88␉msgbuf = malloc(BOOTER_LOG_SIZE);␊
89␉bzero(msgbuf, BOOTER_LOG_SIZE);␊
90␉cursor = msgbuf;␊
91␉msglog("%s\n", "Chameleon " I386BOOT_CHAMELEONVERSION " (svn-r" I386BOOT_CHAMELEONREVISION ")" " [" I386BOOT_BUILDDATE "]");␊
92}␊
93␊
94void msglog(const char * fmt, ...)␊
95{␊
96␉va_list ap;␊
97␉struct putc_info pi;␊
98␊
99␉if (!msgbuf)␊
100␉␉return;␊
101␊
102␉if (((cursor - msgbuf) > (BOOTER_LOG_SIZE - SAFE_LOG_SIZE)))␊
103␉␉return;␊
104␊
105␉va_start(ap, fmt);␊
106␉pi.str = cursor;␊
107␉pi.last_str = 0;␊
108␉prf(fmt, ap, sputc, &pi);␊
109␉va_end(ap);␊
110␉cursor += strlen((char *)cursor);␊
111}␊
112␊
113void setupBooterLog(void)␊
114{␊
115␉if (!msgbuf)␊
116␉␉return;␊
117}␊
118/* Kabyl: !BooterLog */␊
119␊
120/*␊
121 * write one character to console␊
122 */␊
123int putchar(int c)␊
124{␊
125␉if ( c == '\t' )␊
126␉{␊
127␉␉for (c = 0; c < 8; c++) bios_putchar(' ');␊
128␉␉return c;␊
129␉}␊
130␊
131␉if ( c == '\n' )␊
132 {␊
133␉␉bios_putchar('\r');␊
134 }␊
135␊
136␉bios_putchar(c);␊
137 ␊
138 return c;␊
139}␊
140␊
141int getc()␊
142{␊
143 int c = bgetc();␊
144␊
145 if ((c & 0xff) == 0)␊
146 return c;␊
147 else␊
148 return (c & 0xff);␊
149}␊
150␊
151// Read and echo a character from console. This doesn't echo backspace␊
152// since that screws up higher level handling␊
153␊
154int getchar()␊
155{␊
156␉register int c = getc();␊
157␊
158//␉if ( c == '\r' ) c = '\n';␊
159␊
160//␉if ( c >= ' ' && c < 0x7f) putchar(c);␊
161␉␊
162␉return (c);␊
163}␊
164␊
165int printf(const char * fmt, ...)␊
166{␊
167 va_list ap;␊
168␉va_start(ap, fmt);␊
169␊
170 prf(fmt, ap, putchar, 0);␊
171␉␊
172␉{␊
173␉␉// Kabyl: BooterLog␊
174␉␉struct putc_info pi;␊
175␊
176␉␉if (!msgbuf)␊
177␉␉␉return 0;␊
178␊
179␉␉if (((cursor - msgbuf) > (BOOTER_LOG_SIZE - SAFE_LOG_SIZE)))␊
180␉␉␉return 0;␊
181␉␉pi.str = cursor;␊
182␉␉pi.last_str = 0;␊
183␉␉prf(fmt, ap, sputc, &pi);␊
184␉␉cursor += strlen((char *)cursor);␊
185␉}␊
186␊
187␉va_end(ap);␊
188 return 0;␊
189}␊
190␊
191int verbose(const char * fmt, ...)␊
192{␊
193 va_list ap;␊
194␊
195␉va_start(ap, fmt);␊
196 if (gVerboseMode)␊
197 {␊
198 prf(fmt, ap, putchar, 0);␊
199 }␊
200␊
201␉{␊
202␉␉// Kabyl: BooterLog␊
203␉␉struct putc_info pi;␊
204␊
205␉␉if (!msgbuf)␊
206␉␉␉return 0;␊
207␊
208␉␉if (((cursor - msgbuf) > (BOOTER_LOG_SIZE - SAFE_LOG_SIZE)))␊
209␉␉␉return 0;␊
210␉␉pi.str = cursor;␊
211␉␉pi.last_str = 0;␊
212␉␉prf(fmt, ap, sputc, &pi);␊
213␉␉cursor += strlen((char *)cursor);␊
214␉}␊
215␊
216 va_end(ap);␊
217 return(0);␊
218}␊
219␊
220int error(const char * fmt, ...)␊
221{␊
222 va_list ap;␊
223 gErrors = true;␊
224 va_start(ap, fmt);␊
225 prf(fmt, ap, putchar, 0);␊
226␉va_end(ap);␊
227 return(0);␊
228}␊
229␊
230void stop(const char * fmt, ...)␊
231{␊
232␉va_list ap;␊
233␊
234␉printf("\n");␊
235␉va_start(ap, fmt);␊
236 prf(fmt, ap, putchar, 0);␊
237␉va_end(ap);␊
238␉printf("\nThis is a non recoverable error! System HALTED!!!");␊
239␉halt();␊
240␉while (1);␊
241}␊
242␊
243/** Print a "Press a key to continue..." message and wait for a key press. */␊
244void pause() ␊
245{␊
246 printf("Press a key to continue...\n");␊
247␉getchar(); // replace getchar() by pause() ?? were useful...?␊
248}␊
249

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Revision: 1066