0e4e809602
The improvements are: - can get the kld info from core files via kvm(3); - can use kldstat(2) directly, which is a piece of cake; - can use .symbols or whatever, which allows for use by non-developers when reporting system crashes -- now asf(8) can be mentioned in the handbook at last; - speed (no more double fts(3) per loaded module); - various bugs fixed. At the same time, the new asf(8) should stay compatible with the old one, bar bugs. Perhaps some defaults may be changed later to match today's state of affairs. Reviewed by: grog MFC after: 1 month Sponsored by: RiNet (Cronyx Plus LLC)
74 lines
2.3 KiB
C
74 lines
2.3 KiB
C
/*-
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* Copyright (c) 2002, 2003 Greg Lehey
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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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*
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* This software is provided by the author ``as is'' and any express
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* or implied warranties, including, but not limited to, the implied
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* warranties of merchantability and fitness for a particular purpose
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* are disclaimed. In no event shall the author be liable for any
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* direct, indirect, incidental, special, exemplary, or consequential
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* damages (including, but not limited to, procurement of substitute
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* goods or services; loss of use, data, or profits; or business
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* interruption) however caused and on any theory of liability,
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* whether in contract, strict liability, or tort (including
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* negligence or otherwise) arising in any way out of the use of this
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* software, even if advised of the possibility of such damage.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/types.h>
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#include <err.h>
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#include <inttypes.h>
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#include <limits.h>
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#include <stdio.h>
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#include <string.h>
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#include "asf.h"
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/*
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* Get the linker file list from kldstat(8) output.
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* The "run" flag tells if kldstat(8) should run now.
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* Of course, kldstat(1) can run in a live system only, but its output
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* can be saved beforehand and fed to this function later via stdin.
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*/
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void
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asf_prog(int run)
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{
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char buf[LINE_MAX];
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char *token[MAXTOKEN];
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char *endp;
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FILE *kldstat;
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caddr_t base;
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int tokens;
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if (run) {
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if ((kldstat = popen("kldstat", "r")) == NULL)
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err(2, "can't start kldstat");
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} else
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kldstat = stdin;
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while (fgets(buf, sizeof(buf), kldstat)) {
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/* Skip header line and main kernel file */
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if (buf[0] == 'I' || strstr(buf, KERNFILE))
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continue;
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tokens = tokenize(buf, token, MAXTOKEN);
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if (tokens < 4)
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continue;
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base = (caddr_t)(uintptr_t)strtoumax(token[2], &endp, 16);
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if (endp == NULL || *endp != '\0')
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continue;
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kfile_add(token[4], base);
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}
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}
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