Chameleon

Chameleon Svn Source Tree

Root/trunk/i386/libsaio/console.c

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 "bootstruct.h"␊
49␊
50extern int␉vprf(const char * fmt, va_list ap);␊
51␊
52bool gVerboseMode;␊
53bool gErrors;␊
54␊
55/* Kabyl: BooterLog */␊
56//Azi: Doubled log available size.␊
57// 64kb are not enough to hold the full log while booting with -f argument (ignore caches).␊
58// It also seems to fix some reported problems while booting with the mentioned argument.␊
59// Note: 96kb are enough to hold full log, booting with -f; even so, this depends on how much␊
60// we "play" at the boot prompt, with what patches we're playing and how much they print to the log,␊
61// kexts loaded, etc...␊
62// Please remove this comment when this gets checked by a "true" dev.␊
63#define BOOTER_LOG_SIZE␉(128 * 1024)␊
64#define SAFE_LOG_SIZE␉134␊
65␊
66char *msgbuf = 0;␊
67char *cursor = 0;␊
68␊
69struct putc_info {␊
70 char * str;␊
71 char * last_str;␊
72};␊
73␊
74static void sputc(int c, struct putc_info * pi)␊
75{␊
76␉if (pi->last_str)␊
77␉if (pi->str == pi->last_str)␊
78␉{␊
79␉␉*(pi->str) = '\0';␊
80␉␉return;␊
81␉}␊
82␉*(pi->str)++ = c;␊
83}␊
84␊
85void initBooterLog(void)␊
86{␊
87␉msgbuf = malloc(BOOTER_LOG_SIZE);␊
88␉bzero(msgbuf, BOOTER_LOG_SIZE);␊
89␉cursor = msgbuf;␊
90}␊
91␊
92void msglog(const char * fmt, ...)␊
93{␊
94␉va_list ap;␊
95␉struct putc_info pi;␊
96␊
97␉if (!msgbuf)␊
98␉␉return;␊
99␊
100␉if (((cursor - msgbuf) > (BOOTER_LOG_SIZE - SAFE_LOG_SIZE)))␊
101␉␉return;␊
102␊
103␉va_start(ap, fmt);␊
104␉pi.str = cursor;␊
105␉pi.last_str = 0;␊
106␉prf(fmt, ap, sputc, &pi);␊
107␉va_end(ap);␊
108␉cursor += strlen((char *)cursor);␊
109}␊
110␊
111void setupBooterLog(void)␊
112{␊
113␉if (!msgbuf)␊
114␉␉return;␊
115␊
116␉Node *node = DT__FindNode("/", false);␊
117␉if (node)␊
118␉␉DT__AddProperty(node, "boot-log", strlen((char *)msgbuf) + 1, msgbuf);␊
119}␊
120/* Kabyl: !BooterLog */␊
121␊
122␊
123/*␊
124 * write one character to console␊
125 */␊
126void putchar(int c)␊
127{␊
128␉if ( c == '\t' )␊
129␉{␊
130␉␉for (c = 0; c < 8; c++) putc(' ');␊
131␉␉return;␊
132␉}␊
133␊
134␉if ( c == '\n' )␊
135 {␊
136␉␉putc('\r');␊
137 }␊
138␊
139␉putc(c);␊
140}␊
141␊
142int getc()␊
143{␊
144 int c = bgetc();␊
145␊
146 if ((c & 0xff) == 0)␊
147 return c;␊
148 else␊
149 return (c & 0xff);␊
150}␊
151␊
152// Read and echo a character from console. This doesn't echo backspace␊
153// since that screws up higher level handling␊
154␊
155int getchar()␊
156{␊
157␉register int c = getc();␊
158␊
159␉if ( c == '\r' ) c = '\n';␊
160␊
161␉if ( c >= ' ' && c < 0x7f) putchar(c);␊
162␉␊
163␉return (c);␊
164}␊
165␊
166int printf(const char * fmt, ...)␊
167{␊
168 va_list ap;␊
169␉va_start(ap, fmt);␊
170␉if (bootArgs->Video.v_display == VGA_TEXT_MODE)␊
171␉␉prf(fmt, ap, putchar, 0);␊
172␉else␊
173␉␉vprf(fmt, ap);␊
174␊
175␉{␊
176␉/* Kabyl: BooterLog */␊
177␉␉struct putc_info pi;␊
178␊
179␉␉if (!msgbuf)␊
180␉␉␉return 0;␊
181␊
182␉␉if (((cursor - msgbuf) > (BOOTER_LOG_SIZE - SAFE_LOG_SIZE)))␊
183␉␉␉return 0;␊
184␉␉pi.str = cursor;␊
185␉␉pi.last_str = 0;␊
186␉␉prf(fmt, ap, sputc, &pi);␊
187␉␉cursor += strlen((char *)cursor);␊
188␉}␊
189␊
190␉va_end(ap);␊
191 return 0;␊
192}␊
193␊
194int verbose(const char * fmt, ...)␊
195{␊
196 va_list ap;␊
197 ␊
198␉va_start(ap, fmt);␊
199 if (gVerboseMode)␊
200 {␊
201␉␉if (bootArgs->Video.v_display == VGA_TEXT_MODE)␊
202␉␉␉prf(fmt, ap, putchar, 0);␊
203␉␉else␊
204␉␉␉vprf(fmt, ap);␊
205 }␊
206␊
207␉{␊
208␉/* Kabyl: BooterLog */␊
209␉␉struct putc_info pi;␊
210␊
211␉␉if (!msgbuf)␊
212␉␉␉return 0;␊
213␊
214␉␉if (((cursor - msgbuf) > (BOOTER_LOG_SIZE - SAFE_LOG_SIZE)))␊
215␉␉␉return 0;␊
216␉␉pi.str = cursor;␊
217␉␉pi.last_str = 0;␊
218␉␉prf(fmt, ap, sputc, &pi);␊
219␉␉cursor += strlen((char *)cursor);␊
220␉}␊
221␊
222 va_end(ap);␊
223 return(0);␊
224}␊
225␊
226int error(const char * fmt, ...)␊
227{␊
228 va_list ap;␊
229 gErrors = true;␊
230 va_start(ap, fmt);␊
231␉if (bootArgs->Video.v_display == VGA_TEXT_MODE)␊
232␉␉prf(fmt, ap, putchar, 0);␊
233 else␊
234␉␉vprf(fmt, ap);␊
235␉va_end(ap);␊
236 return(0);␊
237}␊
238␊
239void stop(const char * fmt, ...)␊
240{␊
241␉va_list ap;␊
242␊
243␉printf("\n");␊
244␉va_start(ap, fmt);␊
245␉if (bootArgs->Video.v_display == VGA_TEXT_MODE) {␊
246␉␉prf(fmt, ap, putchar, 0);␊
247␉} else {␊
248␉␉vprf(fmt, ap);␊
249␉}␊
250␉va_end(ap);␊
251␉printf("\nThis is a non recoverable error! System HALTED!!!");␊
252␉halt();␊
253␉while (1);␊
254}␊
255␊
256/** Print a "Press a key to continue..." message and wait for a key press. */␊
257void pause() ␊
258{␊
259 printf("Press a key to continue...");␊
260 getc();␊
261}␊
262

Archive Download this file

Revision: 616