2 .\" Copyright (c) 2013 Stacey D. Son
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26 .\" Support for miscellaneous binary image activators
33 .Nd manage binary image activators
45 .Op Fl -offset Ar offset
66 is the management utility for configuring miscellaneous binaries image
67 activators in the kernel.
68 It allows adding, deleting, disabling,
69 enabling, and looking up interpreters.
70 Also, all the interpreters can
73 The first argument on the command line indicates the operation to be
75 Operation must be one of the following:
76 .Bl -tag -width indent
87 .Op Fl -offset Ar offset
91 Add a new activator entry in the kernel.
100 bytes that uniquely identify a suitable binary for the activator,
107 Optionally, you may specify a
109 to do a bitwise AND with the header bytes.
110 This effectively allows you to ignore fields in the binary header that
111 do not uniquely indentify the binary file's type.
115 may be specified for the magic bytes using the
122 To enable the activator entry the
125 The activator default state is disabled.
127 To make the interpreter automatically available in jails and chroots,
130 option to allow the kernel to open the binary at configuration time
131 rather then lazily when the the interpreted program is started.
135 may also contain arguments for the interpreter including
137 which gets replaced by the old
139 value in the interpreter string.
140 .It Cm disable Ar name
141 Disable the activator entry identified with
143 .It Cm enable Ar name
144 Enable the activator entry identified with
147 Take a snapshot and print all the activator entries currently configured.
148 .It Cm lookup Ar name
149 Look up and print out the activator entry identified with
151 .It Cm remove Ar name
152 Remove the activator entry identified with
156 Add an image activator to run the LLVM interpreter
161 compiled files and set its state to enabled.
164 is replaced with the old
170 .Bd -literal -offset indent
171 # binmiscctl add llvmbc --interpreter ''/usr/bin/lli \e
172 --fake-argv0=#a'' --magic ''BC\\xc0\\xde'' --size 4 \e
178 image activator to disabled:
179 .Bd -literal -offset indent
180 # binmiscctl disable llvmbc
185 image activator to enabled:
186 .Bd -literal -offset indent
187 # binmiscctl enable llvmbc
193 .Bd -literal -offset indent
194 # binmiscctl remove llvmbc
197 Look up and list the record for the
200 .Bd -literal -offset indent
201 # binmiscctl lookup llvmbc
204 Add QEMU bsd-user program as an image activator for ARM AARCH64 binaries:
205 .Bd -literal -offset indent
206 # binmiscctl add arm64 \e
207 --interpreter "/usr/local/bin/qemu-aarch64-static" \e
208 --magic "\ex7f\ex45\ex4c\ex46\ex02\ex01\ex01\ex00\ex00\ex00\e
209 \ex00\ex00\ex00\ex00\ex00\ex00\ex02\ex00\exb7\ex00" \e
210 --mask "\exff\exff\exff\exff\exff\exff\exff\ex00\exff\exff\e
211 \exff\exff\exff\exff\exff\exff\exfe\exff\exff\exff" \e
212 --size 20 --set-enabled
215 Add QEMU bsd-user program as an image activator for ARM little-endian binaries:
216 .Bd -literal -offset indent
217 # binmiscctl add armelf \e
218 --interpreter "/usr/local/bin/qemu-arm-static" \e
219 --magic "\ex7f\ex45\ex4c\ex46\ex01\ex01\ex01\ex00\ex00\ex00\e
220 \ex00\ex00\ex00\ex00\ex00\ex00\ex02\ex00\ex28\ex00" \e
221 --mask "\exff\exff\exff\exff\exff\exff\exff\ex00\exff\exff\e
222 \exff\exff\exff\exff\exff\exff\exfe\exff\exff\exff" \e
223 --size 20 --set-enabled
226 Add QEMU bsd-user program as an image activator for ARM big-endian binaries:
227 .Bd -literal -offset indent
228 # binmiscctl add armebelf \e
229 --interpreter "/usr/local/bin/qemu-arm-static" \e
230 --magic "\ex7f\ex45\ex4c\ex46\ex01\ex02\ex01\ex00\ex00\ex00\e
231 \ex00\ex00\ex00\ex00\ex00\ex00\ex00\ex02\ex00\ex28" \e
232 --mask "\exff\exff\exff\exff\exff\exff\exff\ex00\exff\exff\e
233 \exff\exff\exff\exff\exff\exff\exff\exfe\exff\exff" \e
234 --size 20 --set-enabled
237 Add QEMU bsd-user program as an image activator for MIPS32 binaries:
238 .Bd -literal -offset indent
239 # binmiscctl add mips32 \e
240 --interpreter "/usr/local/bin/qemu-mips-static" \e
241 --magic "\ex7f\ex45\ex4c\ex46\ex01\ex02\ex01\ex00\ex00\ex00\e
242 \ex00\ex00\ex00\ex00\ex00\ex00\ex00\ex02\ex00\ex08" \e
243 --mask "\exff\exff\exff\exff\exff\exff\exff\ex00\exff\exff\e
244 \exff\exff\exff\exff\exff\exff\exff\exfe\exff\exff" \e
245 --size 20 --set-enabled
248 Add QEMU bsd-user program as an image activator for MIPS64 binaries:
249 .Bd -literal -offset indent
250 # binmiscctl add mips64 \e
251 --interpreter "/usr/local/bin/qemu-mips64-static" \e
252 --magic "\ex7f\ex45\ex4c\ex46\ex02\ex02\ex01\ex00\ex00\ex00\e
253 \ex00\ex00\ex00\ex00\ex00\ex00\ex00\ex02\ex00\ex08" \e
254 --mask "\exff\exff\exff\exff\exff\exff\exff\ex00\exff\exff\e
255 \exff\exff\exff\exff\exff\exff\exff\exfe\exff\exff" \e
256 --size 20 --set-enabled
259 Add QEMU bsd-user program as an image activator for PowerPC binaries:
260 .Bd -literal -offset indent
261 # binmiscctl add powerpc \e
262 --interpreter "/usr/local/bin/qemu-ppc-static" \e
263 --magic "\ex7f\ex45\ex4c\ex46\ex01\ex02\ex01\ex00\ex00\ex00\e
264 \ex00\ex00\ex00\ex00\ex00\ex00\ex00\ex02\ex00\ex14" \e
265 --mask "\exff\exff\exff\exff\exff\exff\exff\ex00\exff\exff\e
266 \exff\exff\exff\exff\exff\exff\exff\exfe\exff\exff" \e
267 --size 20 --set-enabled
270 Add QEMU bsd-user program as an image activator for PowerPC64 binaries:
271 .Bd -literal -offset indent
272 # binmiscctl add powerpc64 \e
273 --interpreter "/usr/local/bin/qemu-ppc64-static" \e
274 --magic "\ex7f\ex45\ex4c\ex46\ex02\ex02\ex01\ex00\ex00\ex00\e
275 \ex00\ex00\ex00\ex00\ex00\ex00\ex00\ex02\ex00\ex15" \e
276 --mask "\exff\exff\exff\exff\exff\exff\exff\ex00\exff\exff\e
277 \exff\exff\exff\exff\exff\exff\exff\exfe\exff\exff" \e
278 --size 20 --set-enabled
281 Add QEMU bsd-user program as an image activator for 64-bit RISC-V binaries:
282 .Bd -literal -offset indent
283 # binmiscctl add riscv64 \e
284 --interpreter "/usr/local/bin/qemu-riscv64-static" \e
285 --magic "\ex7f\ex45\ex4c\ex46\ex02\ex01\ex01\ex00\ex00\ex00\e
286 \ex00\ex00\ex00\ex00\ex00\ex00\ex02\ex00\exf3\ex00" \e
287 --mask "\exff\exff\exff\exff\exff\exff\exff\ex00\exff\exff\e
288 \exff\exff\exff\exff\exff\exff\exfe\exff\exff\exff" \e
289 --size 20 --set-enabled
291 .Ss "Create and use an ARMv6 chroot on an AMD64 host"
292 Use an existing source tree to build a chroot host with architecture
294 .Bd -literal -offset ident
298 make world TARGET=arm TARGET_ARCH=armv6 DESTDIR=$D
299 make distribution TARGET=arm TARGET_ARCH=armv6 DESTDIR=$D
303 .Pa emulators/qemu-user-static
306 Ports Collection, the emulator must be copied into the jail path
310 Using the example above:
311 .Bd -literal -offset -ident
312 mkdir $D/usr/local/bin
313 cp /usr/local/bin/qemu-arm-static $D/usr/local/bin
316 Now the user can chroot into the environment normally, as root:
317 .Bd -literal -offset -ident
329 It was developed to support the imgact_binmisc kernel module.
331 .An Stacey D Son Aq Mt sson@FreeBSD.org