projects / apple / xnu.git / blame
| Commit | Line | Data |
|---|---|---|
| 1c79356b A |
1 | /* |
| 2 | * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. | |
| 3 | * | |
| 4 | * @APPLE_LICENSE_HEADER_START@ | |
| 5 | * | |
| d7e50217 | 6 | * Copyright (c) 1999-2003 Apple Computer, Inc. All Rights Reserved. |
| 1c79356b | 7 | * |
| d7e50217 A |
8 | * This file contains Original Code and/or Modifications of Original Code |
| 9 | * as defined in and that are subject to the Apple Public Source License | |
| 10 | * Version 2.0 (the 'License'). You may not use this file except in | |
| 11 | * compliance with the License. Please obtain a copy of the License at | |
| 12 | * http://www.opensource.apple.com/apsl/ and read it before using this | |
| 13 | * file. | |
| 14 | * | |
| 15 | * The Original Code and all software distributed under the License are | |
| 16 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER | |
| 1c79356b A |
17 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, |
| 18 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, | |
| d7e50217 A |
19 | * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. |
| 20 | * Please see the License for the specific language governing rights and | |
| 21 | * limitations under the License. | |
| 1c79356b A |
22 | * |
| 23 | * @APPLE_LICENSE_HEADER_END@ | |
| 24 | */ | |
| 25 | /* | |
| 26 | * file: pe_kprintf.c | |
| 27 | * i386 platform expert debugging output initialization. | |
| 28 | */ | |
| 29 | #include <stdarg.h> | |
| 30 | #include <pexpert/pexpert.h> | |
| 31 | #include <kern/debug.h> | |
| 32 | ||
| 33 | /* extern references */ | |
| 34 | extern void cnputc(char c); | |
| 35 | ||
| 36 | /* Globals */ | |
| 37 | void (*PE_kputc)(char c) = 0; | |
| 38 | ||
| 39 | unsigned int disableSerialOuput = TRUE; | |
| 40 | ||
| 41 | void PE_init_kprintf(boolean_t vm_initialized) | |
| 42 | { | |
| 43 | unsigned int boot_arg; | |
| 44 | ||
| 45 | if (PE_state.initialized == FALSE) | |
| 46 | panic("Platform Expert not initialized"); | |
| 47 | ||
| 48 | if (!vm_initialized) | |
| 49 | { | |
| 50 | if (PE_parse_boot_arg("debug", &boot_arg)) | |
| 51 | if (boot_arg & DB_KPRT) disableSerialOuput = FALSE; | |
| 52 | ||
| 53 | /* FIXME - route output to serial port. */ | |
| 54 | PE_kputc = cnputc; | |
| 55 | } | |
| 56 | } | |
| 57 | ||
| 58 | void kprintf(const char *fmt, ...) | |
| 59 | { | |
| 60 | va_list listp; | |
| 61 | ||
| 62 | if (!disableSerialOuput) { | |
| 63 | va_start(listp, fmt); | |
| 64 | _doprnt(fmt, &listp, PE_kputc, 16); | |
| 65 | va_end(listp); | |
| 66 | } | |
| 67 | } |