0a6a1f1d05
This brings our tree to NetBSD 7.0, as found on -current on the 10-10-2015. This updates: - LLVM to 3.6.1 - GCC to GCC 5.1 - Replace minix/commands/zdump with usr.bin/zdump - external/bsd/libelf has moved to /external/bsd/elftoolchain/ - Import ctwm - Drop sprintf from libminc Change-Id: I149836ac18e9326be9353958bab9b266efb056f0
148 lines
4.9 KiB
C
148 lines
4.9 KiB
C
/* $NetBSD: ksyms.h,v 1.33 2015/09/06 06:01:02 dholland Exp $ */
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/*
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* Copyright (c) 2001, 2003 Anders Magnusson (ragge@ludd.luth.se).
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _SYS_KSYMS_H_
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#define _SYS_KSYMS_H_
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#ifdef _KSYMS_PRIVATE
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#include <sys/exec_elf.h>
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#include <sys/ioccom.h>
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#include <sys/queue.h>
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struct ksyms_symtab {
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TAILQ_ENTRY(ksyms_symtab) sd_queue; /* All active tables */
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const char *sd_name; /* Name of this table */
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Elf_Sym *sd_symstart; /* Address of symbol table */
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uintptr_t sd_minsym; /* symbol with minimum value */
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uintptr_t sd_maxsym; /* symbol with maximum value */
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char *sd_strstart; /* Address of corresponding string table */
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int sd_usroffset; /* Real address for userspace */
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int sd_symsize; /* Size in bytes of symbol table */
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int sd_strsize; /* Size of string table */
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int sd_nglob; /* Number of global symbols */
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bool sd_gone; /* dead but around for open() */
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void *sd_ctfstart; /* Address of CTF contents */
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int sd_ctfsize; /* Size in bytes of CTF contents */
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uint32_t *sd_nmap; /* Name map for sorted symbols */
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int sd_nmapsize; /* Total span of map */
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};
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/*
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* Static allocated ELF header.
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* Basic info is filled in at attach, sizes at open.
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*/
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#define SHNOTE 1
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#define SYMTAB 2
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#define STRTAB 3
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#define SHSTRTAB 4
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#define SHBSS 5
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#define SHCTF 6
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#define NSECHDR 7
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#define NPRGHDR 1
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#define SHSTRSIZ 64
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struct ksyms_hdr {
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Elf_Ehdr kh_ehdr;
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Elf_Phdr kh_phdr[NPRGHDR];
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Elf_Shdr kh_shdr[NSECHDR];
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char kh_strtab[SHSTRSIZ];
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/* 0=NameSize, 1=DescSize, 2=Tag, 3="NetB", 4="SD\0\0", 5=Version */
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int32_t kh_note[6];
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};
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#endif /* _KSYMS_PRIVATE */
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/*
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* Do a lookup of a symbol using the in-kernel lookup algorithm.
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*/
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struct ksyms_ogsymbol {
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const char *kg_name;
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union {
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void *ku_sym; /* Normally Elf_Sym */
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unsigned long *ku_value;
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} _un;
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#define kg_sym _un.ku_sym
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#define kg_value _un.ku_value
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};
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#ifdef ELFSIZE
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struct ksyms_gsymbol {
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const char *kg_name;
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union {
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Elf_Sym ku_sym;
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} _un;
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};
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#endif
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struct ksyms_gvalue {
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const char *kv_name;
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uint64_t kv_value;
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};
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#define OKIOCGSYMBOL _IOW('l', 1, struct ksyms_ogsymbol)
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#define OKIOCGVALUE _IOW('l', 2, struct ksyms_ogsymbol)
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#define KIOCGSIZE _IOR('l', 3, int)
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#define KIOCGVALUE _IOWR('l', 4, struct ksyms_gvalue)
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#define KIOCGSYMBOL _IOWR('l', 5, struct ksyms_gsymbol)
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#if defined(_KERNEL) || defined(_KMEMUSER)
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/*
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* Definitions used in ksyms_getname() and ksyms_getval().
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*/
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#define KSYMS_CLOSEST 0001 /* Nearest lower match */
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#define KSYMS_EXACT 0002 /* Only exact match allowed */
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#define KSYMS_EXTERN 0000 /* Only external symbols (pseudo) */
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#define KSYMS_PROC 0100 /* Procedures only */
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#define KSYMS_ANY 0200 /* Also local symbols (DDB use only) */
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typedef int (*ksyms_callback_t)(const char *, int, void *,
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uint32_t, int, void *);
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/*
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* Prototypes
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*/
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int ksyms_getname(const char **, const char **, vaddr_t, int);
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int ksyms_getval(const char *, const char *, unsigned long *, int);
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int ksyms_getval_unlocked(const char *, const char *, unsigned long *, int);
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struct ksyms_symtab *ksyms_get_mod(const char *);
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int ksyms_mod_foreach(const char *mod, ksyms_callback_t, void *);
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int ksyms_addsymtab(const char *, void *, vsize_t, char *, vsize_t);
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int ksyms_delsymtab(const char *);
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void ksyms_init(void);
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void ksyms_addsyms_elf(int, void *, void *);
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void ksyms_addsyms_explicit(void *, void *, size_t, void *, size_t);
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int ksyms_sift(char *, char *, int);
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void ksyms_modload(const char *, void *, vsize_t, char *, vsize_t);
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void ksyms_modunload(const char *);
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#endif /* _KERNEL */
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#endif /* _SYS_KSYMS_H_ */
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