/* * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. * * @APPLE_LICENSE_HEADER_START@ * * The contents of this file constitute Original Code as defined in and * are subject to the Apple Public Source License Version 1.1 (the * "License"). You may not use this file except in compliance with the * License. Please obtain a copy of the License at * http://www.apple.com/publicsource and read it before using this file. * * This Original Code and all software distributed under the License are * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the * License for the specific language governing rights and limitations * under the License. * * @APPLE_LICENSE_HEADER_END@ */ /* * file: pe_kprintf.c * i386 platform expert debugging output initialization. */ #include <stdarg.h> #include <pexpert/pexpert.h> #include <kern/debug.h> /* extern references */ extern void cnputc(char c); /* Globals */ void (*PE_kputc)(char c) = 0; unsigned int disableSerialOuput = TRUE; void PE_init_kprintf(boolean_t vm_initialized) { unsigned int boot_arg; if (PE_state.initialized == FALSE) panic("Platform Expert not initialized"); if (!vm_initialized) { if (PE_parse_boot_arg("debug", &boot_arg)) if (boot_arg & DB_KPRT) disableSerialOuput = FALSE; /* FIXME - route output to serial port. */ PE_kputc = cnputc; } } void kprintf(const char *fmt, ...) { va_list listp; if (!disableSerialOuput) { va_start(listp, fmt); _doprnt(fmt, &listp, PE_kputc, 16); va_end(listp); } }