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