1 .\" Copyright (c) 2003 Greg Lehey. All rights reserved.
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4 .\" modification, are permitted provided that the following conditions
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39 .Op Ar modules-path Op Ar outfile
45 output from standard input and writes to the
49 commands to add symbol files from KLDs in subdirectories of the subdirectory
51 of the current directory, which is intended to be a kernel build directory.
54 to load the symbols into the debugging environment.
58 argument can specify a semicolon-separated list of directory pathnames
62 Each directory in the list will be searched in turn for modules.
63 The default list consists of just one element,
65 which is suitable if the current directory is a kernel build directory.
71 writes to it instead of
77 standard output is used.
79 The following options modify the function of
81 .Bl -tag -width indent
83 When writing to an explicit
85 append to the file rather than overwriting it.
87 Instead of trying to simplistically guess the path for each module, perform
88 a traversal in the same way that
90 does to locate an exact path for each module, no matter where in
94 Instead of reading from standard input, use the conventional
95 system interface to get the list of modules currently loaded.
97 Instead of reading from standard input, start a
99 and read the information from it.
101 Specify the core file for
106 Specify the system file for
113 to write or append its output to.
118 standard output is used.
120 Do not prepend a (guessed) subdirectory of the module path.
122 Instead of reading from standard input, use the
124 interface to get the list of modules.
125 This interface allows for inspecting system crash dumps,
126 as well as the live system.
131 options will be of use if inspecting a crash dump.
132 Elevated privileges, e.g., those of a superuser,
133 may be needed to use this option.
137 to the list of suffixes
139 tries to append to KLD file names.
140 The default list consists of
144 The null suffix always stays at the list tail, after the suffix added.
145 Should it be needed in the middle of the list,
146 a blank suffix can be specified to
150 Clear the list of suffixes
152 tries to append to KLD file names.
153 Only the null suffix is left in the list.
156 To add symbol files from the system search path specified by the
158 sysctl, the following command can be used:
160 .Dl asf -s `sysctl -n kern.module_path`
170 utility first appeared in
173 .An Greg Lehey Aq grog@FreeBSD.org
175 Module paths are guessed in a rather naive way by default.
176 It is likely to lag behind the changes to the build tree layout.