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e55a0cd805
returned an lseek offset in a "u_long *" value, which can't express >4GB offsets on 32 bit machines (eg: PAE). Change to "off_t *" for all. Support ELF crashdumps on i386 and amd64. Support PAE crashdumps on i386. This is done by auto-detecting the presence of the IdlePDPT which means that PAE is active. I used Marcel's _kvm_pa2off strategy and ELF header reader for ELF support on amd64. Paul Saab ported the amd64 changes to i386 and we implemented the PAE support from there. Note that gdb6 in the src tree uses whatever libkvm supports. If you want to debug an old crash dump, you might want to keep an old libkvm.so handy and use LD_PRELOAD or the like. This does not detect the old raw dump format. Approved by: re
84 lines
3.6 KiB
C
84 lines
3.6 KiB
C
/*-
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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. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. 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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* $FreeBSD$
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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 *errp; /* XXX this can probably go away */
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char errbuf[_POSIX2_LINE_MAX];
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#define ISALIVE(kd) ((kd)->vmfd >= 0)
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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 unused; /* was: swap file (e.g., /dev/drum) */
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int nlfd; /* namelist file (e.g., /kernel) */
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struct kinfo_proc *procbase;
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char *argspc; /* (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 *argbuf; /* (dynamic) temporary storage */
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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;
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};
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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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void _kvm_err(kvm_t *kd, const char *program, const char *fmt, ...)
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__printflike(3, 4);
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void _kvm_freeprocs(kvm_t *kd);
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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, off_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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void _kvm_syserr (kvm_t *kd, const char *program, const char *fmt, ...)
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__printflike(3, 4);
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int _kvm_uvatop(kvm_t *, const struct proc *, u_long, u_long *);
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