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      1 /*	$NetBSD: kern_ctf.h,v 1.3 2021/04/06 07:56:10 simonb Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2010 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     17  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     18  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     19  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     20  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     22  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     23  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     24  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     25  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     26  * POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 
     29 #ifndef _SYS_CTF_H_
     30 #define	_SYS_CTF_H_
     31 
     32 #define	CTF_MAGIC	0xcff1	/* magic number identifying header */
     33 
     34 /*
     35  * Modules CTF section
     36  */
     37 typedef struct mod_ctf {
     38 	uint8_t 	*ctftab;	/* Decompressed CTF data. */
     39 	int 		ctfcnt;		/* Number of CTF data bytes. */
     40 	const Elf_Sym	*symtab;	/* Ptr to the symbol table. */
     41 	int		nsym;		/* Number of symbols. */
     42 	uint32_t	*nmap;		/* symbol id map */
     43 	int		nmapsize;	/* Span of id map */
     44 	const char	*strtab;	/* Ptr to the string table. */
     45 	int 		strcnt;		/* Number of string bytes. */
     46 	uint32_t	*ctfoffp;	/* Ptr to array of obj/fnc offsets. */
     47 	uint32_t	*typoffp;	/* Ptr to array of type offsets. */
     48 	long		typlen;		/* number of type data entries. */
     49 	int		ctfalloc;	/* ctftab is alloced */
     50 	bool		fbt_provided;
     51 	int		nenabled;
     52 } mod_ctf_t;
     53 
     54 int
     55 mod_ctf_get(struct module *, mod_ctf_t **);
     56 
     57 #endif
     58