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/* $OpenBSD: kvm_private.h,v 1.26 2018/05/03 15:47:41 zhuk Exp $ */
/* $NetBSD: kvm_private.h,v 1.7 1996/05/05 04:32:15 gwr Exp $ */
/*-
* Copyright (c) 1992, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software developed by the Computer Systems
* Engineering group at Lawrence Berkeley Laboratory under DARPA contract
* BG 91-66 and contributed to Berkeley.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)kvm_private.h 8.1 (Berkeley) 6/4/93
*/
struct __kvm {
/*
* a string to be prepended to error messages
* provided for compatibility with sun's interface
* if this value is null, errors are saved in errbuf[]
*/
const char *program;
char errbuf[_POSIX2_LINE_MAX];
DB *db;
int pmfd; /* physical memory file (or crashdump) */
int vmfd; /* virtual memory file (-1 if crashdump) */
int swfd; /* swap file (e.g., /dev/drum) */
int nlfd; /* namelist file (e.g., /vmunix) */
struct kinfo_proc *procbase;
struct kinfo_file *filebase;
int nbpg; /* page size */
char *swapspc; /* (dynamic) storage for swapped pages */
char *argspc, *argbuf; /* (dynamic) storage for argv strings */
int arglen; /* length of the above */
char **argv; /* (dynamic) storage for argv pointers */
int argc; /* length of above (not actual # present) */
char *envspc, *envbuf; /* (dynamic) storage for environ strings */
int envlen; /* length of the above */
char **envp; /* (dynamic) storage for environ pointers */
int envc; /* length of above (not actual # present) */
/*
* Header structures for kernel dumps. Only gets filled in for
* dead kernels.
*/
struct kcore_hdr *kcore_hdr;
size_t cpu_dsize;
void *cpu_data;
off_t dump_off; /* Where the actual dump starts */
/*
* Kernel virtual address translation state. This only gets filled
* in for dead kernels; otherwise, the running kernel (i.e. kmem)
* will do the translations for us. It could be big, so we
* only allocate it if necessary.
*/
struct vmstate *vmst; /* XXX: should become obsoleted */
/*
* These kernel variables are used for looking up user addresses,
* and are cached for efficiency.
*/
struct pglist *vm_page_buckets;
int vm_page_hash_mask;
int alive; /* Dead or alive. */
#define ISALIVE(kd) ((kd)->alive)
};
#define KREAD(kd, addr, obj) \
(kvm_read(kd, addr, (void *)(obj), sizeof(*obj)) != sizeof(*obj))
/*
* Functions used internally by kvm, but across kvm modules.
*/
__BEGIN_HIDDEN_DECLS
void _kvm_err(kvm_t *kd, const char *program, const char *fmt, ...)
__attribute__((__format__ (printf, 3, 4)));
int _kvm_dump_mkheader(kvm_t *kd_live, kvm_t *kd_dump);
void _kvm_freevtop(kvm_t *);
int _kvm_initvtop(kvm_t *);
int _kvm_kvatop(kvm_t *, u_long, paddr_t *);
void *_kvm_malloc(kvm_t *kd, size_t);
void *_kvm_realloc(kvm_t *kd, void *, size_t);
off_t _kvm_pa2off(kvm_t *, paddr_t);
void *_kvm_reallocarray(kvm_t *kd, void *, size_t, size_t);
void _kvm_syserr(kvm_t *kd, const char *program, const char *fmt, ...)
__attribute__((__format__ (printf, 3, 4)));
ssize_t _kvm_pread(kvm_t *, int, void *, size_t, off_t);
ssize_t _kvm_pwrite(kvm_t *, int, const void *, size_t, off_t);
__END_HIDDEN_DECLS
#define PROTO(x) __dso_hidden typeof(x) x asm("__"#x)
#define DEF(x) __strong_alias(x, __##x)
PROTO(kvm_close);
PROTO(kvm_nlist);
PROTO(kvm_read);
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