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28 .\" Support for miscellaneous binary image activators
35 .Nd manage binary image activators
47 .Op Cm --offset Ar offset
67 is the management utility for configuring miscellaneous binaries image
68 activators in the kernel.
69 It allows adding, deleting, disabling,
70 enabling, and looking up interpreters.
71 Also, all the interpreters can
74 The first argument on the command line indicates the operation to be
76 Operation must be one of the following:
77 .Bl -tag -width indent
88 .Op Cm --offset Ar offset
91 Add a new activator entry in the kernel.
95 interpreter path and its arguments
99 bytes that uniquely identify a suitable binary for the activator,
106 Optionally you may specify a
108 to do a bitwise AND with the header bytes.
109 This effectively allows you to ignore fields in the binary header that
110 do not uniquely indentify the binary file's type.
114 may be specified for the magic bytes using the
121 To enable the activator entry the
124 The activator default state is disabled.
128 may also contain arguments for the interpreter including
130 which gets replaced by the old
132 value in the interpreter string.
133 .It Cm remove Ar name
134 Remove the activator entry identified with
136 .It Cm disable Ar name
137 Disable the activator entry identified with
139 .It Cm enable Ar name
140 Enable the activator entry identified with
142 .It Cm lookup Ar name
143 Look up and print out the activator entry identified with
146 Take a snapshot and print all the activator entries currently configured.
149 .Bd -ragged -offset indent
150 # binmiscctl add llvmbc --interpreter ''/usr/bin/lli --fake-argv0=#a''
151 --magic ''BC\\xc0\\xde'' --size 4 --set-enabled
154 Add an image activator to run the LLVM interpreter (lli) on bitcode
157 gets replaced with the old
159 value so that 'lli' can fake its
161 Set its state to enabled.
163 .Dl # binmiscctl disable llvmbc
167 image activator to disabled.
169 .Dl # binmiscctl enable llvmbc
173 image activator to enabled.
175 .Dl # binmiscctl remove llvmbc
181 .Dl # binmiscctl lookup llvmbc
183 Look up and list the record for the
194 It was developed to support the imgact_binmisc kernel module.