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printk.h revision 1.6.2.2
      1  1.6.2.2  pgoyette /*	$NetBSD: printk.h,v 1.6.2.2 2018/09/06 06:56:08 pgoyette Exp $	*/
      2  1.6.2.2  pgoyette 
      3  1.6.2.2  pgoyette /*-
      4  1.6.2.2  pgoyette  * Copyright (c) 2013 The NetBSD Foundation, Inc.
      5  1.6.2.2  pgoyette  * All rights reserved.
      6  1.6.2.2  pgoyette  *
      7  1.6.2.2  pgoyette  * This code is derived from software contributed to The NetBSD Foundation
      8  1.6.2.2  pgoyette  * by Taylor R. Campbell.
      9  1.6.2.2  pgoyette  *
     10  1.6.2.2  pgoyette  * Redistribution and use in source and binary forms, with or without
     11  1.6.2.2  pgoyette  * modification, are permitted provided that the following conditions
     12  1.6.2.2  pgoyette  * are met:
     13  1.6.2.2  pgoyette  * 1. Redistributions of source code must retain the above copyright
     14  1.6.2.2  pgoyette  *    notice, this list of conditions and the following disclaimer.
     15  1.6.2.2  pgoyette  * 2. Redistributions in binary form must reproduce the above copyright
     16  1.6.2.2  pgoyette  *    notice, this list of conditions and the following disclaimer in the
     17  1.6.2.2  pgoyette  *    documentation and/or other materials provided with the distribution.
     18  1.6.2.2  pgoyette  *
     19  1.6.2.2  pgoyette  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  1.6.2.2  pgoyette  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  1.6.2.2  pgoyette  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  1.6.2.2  pgoyette  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  1.6.2.2  pgoyette  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  1.6.2.2  pgoyette  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  1.6.2.2  pgoyette  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  1.6.2.2  pgoyette  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  1.6.2.2  pgoyette  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  1.6.2.2  pgoyette  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  1.6.2.2  pgoyette  * POSSIBILITY OF SUCH DAMAGE.
     30  1.6.2.2  pgoyette  */
     31  1.6.2.2  pgoyette 
     32  1.6.2.2  pgoyette #ifndef _LINUX_PRINTK_H_
     33  1.6.2.2  pgoyette #define _LINUX_PRINTK_H_
     34  1.6.2.2  pgoyette 
     35  1.6.2.2  pgoyette #include <sys/param.h>
     36  1.6.2.2  pgoyette #include <sys/systm.h>
     37  1.6.2.2  pgoyette 
     38  1.6.2.2  pgoyette #define	printk		printf
     39  1.6.2.2  pgoyette #define	vprintk		vprintf
     40  1.6.2.2  pgoyette #define	printk_once	printf
     41  1.6.2.2  pgoyette #define	pr_err		printf	/* XXX */
     42  1.6.2.2  pgoyette #define	pr_cont		printf	/* XXX */
     43  1.6.2.2  pgoyette #define	pr_info		printf	/* XXX */
     44  1.6.2.2  pgoyette #define	pr_info_once	printf	/* XXX */
     45  1.6.2.2  pgoyette #define	pr_warn_once	printf	/* XXX */
     46  1.6.2.2  pgoyette #define	pr_notice	printf	/* XXX */
     47  1.6.2.2  pgoyette #define	pr_debug	printf	/* XXX */
     48  1.6.2.2  pgoyette #define	KERN_EMERG	"kern emerg: "
     49  1.6.2.2  pgoyette #define	KERN_ALERT	"kern alert: "
     50  1.6.2.2  pgoyette #define	KERN_CRIT	"kern crit: "
     51  1.6.2.2  pgoyette #define	KERN_ERR	"kern error: "
     52  1.6.2.2  pgoyette #define	KERN_WARNING	"kern warning: "
     53  1.6.2.2  pgoyette #define	KERN_NOTICE	"kern notice: "
     54  1.6.2.2  pgoyette #define	KERN_INFO	"kern info: "
     55  1.6.2.2  pgoyette #define	KERN_DEBUG	"kern debug: "
     56  1.6.2.2  pgoyette #define	KERN_CONT	""
     57  1.6.2.2  pgoyette 
     58  1.6.2.2  pgoyette #define	DUMP_PREFIX_NONE	0
     59  1.6.2.2  pgoyette #define	DUMP_PREFIX_OFFSET	1
     60  1.6.2.2  pgoyette #define	DUMP_PREFIX_ADDRESS	2
     61  1.6.2.2  pgoyette 
     62  1.6.2.2  pgoyette static inline void
     63  1.6.2.2  pgoyette hex_dump_to_buffer(const void *buf, size_t buf_size, int bytes_per_line,
     64  1.6.2.2  pgoyette     int bytes_per_group, char *output, size_t output_size, bool ascii __unused)
     65  1.6.2.2  pgoyette {
     66  1.6.2.2  pgoyette 	const uint8_t *bytes = buf;
     67  1.6.2.2  pgoyette 	size_t i = 0, n;
     68  1.6.2.2  pgoyette 
     69  1.6.2.2  pgoyette 	KASSERT(output_size >= 1);
     70  1.6.2.2  pgoyette 	KASSERT((bytes_per_line == 16) || (bytes_per_line == 32));
     71  1.6.2.2  pgoyette 	KASSERT(powerof2(bytes_per_group));
     72  1.6.2.2  pgoyette 	KASSERT(0 < bytes_per_group);
     73  1.6.2.2  pgoyette 	KASSERT(bytes_per_group <= 8);
     74  1.6.2.2  pgoyette 
     75  1.6.2.2  pgoyette 	output[output_size - 1] = '\0';
     76  1.6.2.2  pgoyette 	while (i < buf_size) {
     77  1.6.2.2  pgoyette 		n = snprintf(output, output_size, "%02x", bytes[i++]);
     78  1.6.2.2  pgoyette 		if (n >= output_size)
     79  1.6.2.2  pgoyette 			break;
     80  1.6.2.2  pgoyette 		output += n; output_size -= n;
     81  1.6.2.2  pgoyette 		if ((i == buf_size) || (0 == (i % bytes_per_line)))
     82  1.6.2.2  pgoyette 			n = snprintf(output, output_size, "\n");
     83  1.6.2.2  pgoyette 		else if ((0 < i) && (0 == (i % bytes_per_group)))
     84  1.6.2.2  pgoyette 			n = snprintf(output, output_size, " ");
     85  1.6.2.2  pgoyette 		else
     86  1.6.2.2  pgoyette 			n = 0;
     87  1.6.2.2  pgoyette 		if (n >= output_size)
     88  1.6.2.2  pgoyette 			break;
     89  1.6.2.2  pgoyette 		output += n; output_size -= n;
     90  1.6.2.2  pgoyette 	}
     91  1.6.2.2  pgoyette }
     92  1.6.2.2  pgoyette 
     93  1.6.2.2  pgoyette static inline void
     94  1.6.2.2  pgoyette print_hex_dump(const char *level, const char *prefix, int prefix_type,
     95  1.6.2.2  pgoyette     int bytes_per_line, int bytes_per_group, const void *buf, size_t buf_size,
     96  1.6.2.2  pgoyette     bool ascii)
     97  1.6.2.2  pgoyette {
     98  1.6.2.2  pgoyette 	const uint8_t *bytes = buf;
     99  1.6.2.2  pgoyette 	/* Two digits and one space/newline per byte, plus a null.  */
    100  1.6.2.2  pgoyette 	char line[32*3 + 1];
    101  1.6.2.2  pgoyette 
    102  1.6.2.2  pgoyette 	KASSERT((bytes_per_line == 16) || (bytes_per_line == 32));
    103  1.6.2.2  pgoyette 	KASSERT(powerof2(bytes_per_group));
    104  1.6.2.2  pgoyette 	KASSERT(0 < bytes_per_group);
    105  1.6.2.2  pgoyette 	KASSERT(bytes_per_group <= 8);
    106  1.6.2.2  pgoyette 
    107  1.6.2.2  pgoyette 	while (0 < buf_size) {
    108  1.6.2.2  pgoyette 		const size_t n = MIN(buf_size, 32);
    109  1.6.2.2  pgoyette 
    110  1.6.2.2  pgoyette 		switch (prefix_type) {
    111  1.6.2.2  pgoyette 		case DUMP_PREFIX_OFFSET:
    112  1.6.2.2  pgoyette 			printf("%08zu: ", (bytes - (const uint8_t *)buf));
    113  1.6.2.2  pgoyette 			break;
    114  1.6.2.2  pgoyette 
    115  1.6.2.2  pgoyette 		case DUMP_PREFIX_ADDRESS:
    116  1.6.2.2  pgoyette 			printf("%p: ", bytes);
    117  1.6.2.2  pgoyette 			break;
    118  1.6.2.2  pgoyette 
    119  1.6.2.2  pgoyette 		case DUMP_PREFIX_NONE:
    120  1.6.2.2  pgoyette 		default:
    121  1.6.2.2  pgoyette 			break;
    122  1.6.2.2  pgoyette 		}
    123  1.6.2.2  pgoyette 
    124  1.6.2.2  pgoyette 		hex_dump_to_buffer(bytes, n, bytes_per_line, bytes_per_group,
    125  1.6.2.2  pgoyette 		    line, sizeof(line), ascii);
    126  1.6.2.2  pgoyette 		KASSERT(0 < strnlen(line, sizeof(line)));
    127  1.6.2.2  pgoyette 		KASSERT(line[strnlen(line, sizeof(line)) - 1] == '\n');
    128  1.6.2.2  pgoyette 		printf("%s", line);
    129  1.6.2.2  pgoyette 
    130  1.6.2.2  pgoyette 		bytes += n;
    131  1.6.2.2  pgoyette 		buf_size -= n;
    132  1.6.2.2  pgoyette 	}
    133  1.6.2.2  pgoyette }
    134  1.6.2.2  pgoyette 
    135  1.6.2.2  pgoyette #endif  /* _LINUX_PRINTK_H_ */
    136