Date: Tue, 13 Jan 2015 22:51:45 +0000 (UTC) From: Warren Block <wblock@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-10@freebsd.org Subject: svn commit: r277155 - stable/10/usr.sbin/binmiscctl Message-ID: <201501132251.t0DMpjCp077108@svn.freebsd.org>
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Author: wblock (doc committer) Date: Tue Jan 13 22:51:44 2015 New Revision: 277155 URL: https://svnweb.freebsd.org/changeset/base/277155 Log: MFC r276419: Move the explanation for examples before the example itself. Add numerous QEMU examples and explanations supplied by sbruno, with thanks to Ingo Schwarze for help with the mdoc markup. Code, text, testing, proofreading, cinematography, stunts, and the haunting theme song supplied by sbruno. Modified: stable/10/usr.sbin/binmiscctl/binmiscctl.8 Directory Properties: stable/10/ (props changed) Modified: stable/10/usr.sbin/binmiscctl/binmiscctl.8 ============================================================================== --- stable/10/usr.sbin/binmiscctl/binmiscctl.8 Tue Jan 13 22:41:38 2015 (r277154) +++ stable/10/usr.sbin/binmiscctl/binmiscctl.8 Tue Jan 13 22:51:44 2015 (r277155) @@ -27,8 +27,8 @@ .\" .\" Support for miscellaneous binary image activators .\" -.Dd April 10, 2014 -.Dt BINMISCCTL 8 +.Dd December 30, 2014 +.Dt BINMISCCTL 8 .Os .Sh NAME .Nm binmiscctl @@ -142,50 +142,152 @@ Enable the activator entry identified wi .It Cm lookup Ar name Look up and print out the activator entry identified with .Ar name . -.It Cm list +.It Cm list Take a snapshot and print all the activator entries currently configured. .El .Sh EXAMPLES -.Bl -# binmiscctl add llvmbc --interpreter ''/usr/bin/lli --fake-argv0=#a'' \\ - --magic ''BC\\xc0\\xde'' --size 4 --set-enabled -.El -.Pp Add an image activator to run the LLVM interpreter (lli) on bitcode -compiled files. +compiled files: +.Bd -ragged -offset indent +# binmiscctl add llvmbc --interpreter ''/usr/bin/lli --fake-argv0=#a'' +--magic ''BC\\xc0\\xde'' --size 4 --set-enabled +.Ed +.Pp .Ar #a -gets replaced with the old +is replaced with the old .Dv argv0 value so that 'lli' can fake its .Dv argv0 . Set its state to enabled. .Pp +Set the state of the +.Ar llvmbc +image activator to disabled: .Dl # binmiscctl disable llvmbc .Pp -Set the state of the +Set the state of the .Ar llvmbc -image activator to disabled. -.Pp +image activator to enabled: .Dl # binmiscctl enable llvmbc .Pp -Set the state of the +Delete the .Ar llvmbc -image activator to enabled. -.Pp +image activator: .Dl # binmiscctl remove llvmbc .Pp -Delete the +Look up and list the record for the .Ar llvmbc -image activator. -.Pp +image activator: .Dl # binmiscctl lookup llvmbc .Pp -Look up and list the record for the -.Ar llvmbc -image activator. +Add QEMU bsd-user program as an image activator for ARM little-endian binaries: +.Bd -literal -offset indent +# binmiscctl add armelf \e + --interpreter "/usr/local/bin/qemu-arm-static" \e + --magic "\ex7f\ex45\ex4c\ex46\ex01\ex01\ex01\ex00\ex00\ex00\e + \ex00\ex00\ex00\ex00\ex00\ex00\ex02\ex00\ex28\ex00" \e + --mask "\exff\exff\exff\exff\exff\exff\exff\ex00\exff\exff\e + \exff\exff\exff\exff\exff\exff\exfe\exff\exff\exff" \e + --size 20 --set-enabled +.Ed +.Pp +Add QEMU bsd-user program as an image activator for ARM big-endian binaries: +.Bd -literal -offset indent +# binmiscctl add armebelf \e + --interpreter "/usr/local/bin/qemu-arm-static" \e + --magic "\ex7f\ex45\ex4c\ex46\ex01\ex02\ex01\ex00\ex00\ex00\e + \ex00\ex00\ex00\ex00\ex00\ex00\ex00\ex02\ex00\ex28" \e + --mask "\exff\exff\exff\exff\exff\exff\exff\ex00\exff\exff\e + \exff\exff\exff\exff\exff\exff\exff\exfe\exff\exff" \e + --size 20 --set-enabled +.Ed +.Pp +Add QEMU bsd-user program as an image activator for MIPS32 binaries: +.Bd -literal -offset indent +# binmiscctl add mips32 \e + --interpreter "/usr/local/bin/qemu-mips-static" \e + --magic "\ex7f\ex45\ex4c\ex46\ex01\ex02\ex01\ex00\ex00\ex00\e + \ex00\ex00\ex00\ex00\ex00\ex00\ex00\ex02\ex00\ex08" \e + --mask "\exff\exff\exff\exff\exff\exff\exff\ex00\exff\exff\e + \exff\exff\exff\exff\exff\exff\exff\exfe\exff\exff" \e + --size 20 --set-enabled +.Ed +.Pp +Add QEMU bsd-user program as an image activator for MIPS64 binaries: +.Bd -literal -offset indent +# binmiscctl add mips64 \e + --interpreter "/usr/local/bin/qemu-mips64-static" \e + --magic "\ex7f\ex45\ex4c\ex46\ex02\ex02\ex01\ex00\ex00\ex00\e + \ex00\ex00\ex00\ex00\ex00\ex00\ex00\ex02\ex00\ex08" \e + --mask "\exff\exff\exff\exff\exff\exff\exff\ex00\exff\exff\e + \exff\exff\exff\exff\exff\exff\exff\exfe\exff\exff" \e + --size 20 --set-enabled +.Ed +.Pp +Add QEMU bsd-user program as an image activator for PowerPC binaries: +.Bd -literal -offset indent +# binmiscctl add powerpc \e + --interpreter "/usr/local/bin/qemu-ppc-static" \e + --magic "\ex7f\ex45\ex4c\ex46\ex01\ex02\ex01\ex00\ex00\ex00\e + \ex00\ex00\ex00\ex00\ex00\ex00\ex00\ex02\ex00\ex14" \e + --mask "\exff\exff\exff\exff\exff\exff\exff\ex00\exff\exff\e + \exff\exff\exff\exff\exff\exff\exff\exfe\exff\exff" \e + --size 20 --set-enabled +.Ed +.Pp +Add QEMU bsd-user program as an image activator for PowerPC64 binaries: +.Bd -literal -offset indent +# binmiscctl add powerpc64 \e + --interpreter "/usr/local/bin/qemu-ppc64-static" \e + --magic "\ex7f\ex45\ex4c\ex46\ex01\ex02\ex01\ex00\ex00\ex00\e + \ex00\ex00\ex00\ex00\ex00\ex00\ex00\ex02\ex00\ex15" \e + --mask "\exff\exff\exff\exff\exff\exff\exff\ex00\exff\exff\e + \exff\exff\exff\exff\exff\exff\exff\exfe\exff\exff" \e + --size 20 --set-enabled +.Ed +.Pp +Add QEMU bsd-user program as an image activator for SPARC64 binaries: +.Bd -literal -offset indent +# binmiscctl add sparc64 \e + --interpreter "/usr/local/bin/qemu-sparc64-static" \e + --magic "\ex7f\ex45\ex4c\ex46\ex02\ex02\ex01\ex00\ex00\ex00\e + \ex00\ex00\ex00\ex00\ex00\ex00\ex00\ex02\ex00\ex2b" \e + --mask "\exff\exff\exff\exff\exff\exff\exff\ex00\exff\exff\e + \exff\exff\exff\exff\exff\exff\exff\exfe\exff\exff" \e + --size 20 --set-enabled +.Ed +.Pp +.Ss "Create and use an ARMv6 chroot on an AMD64 host" +Use an existing source tree to build a chroot host with architecture +overrides: +.Bd -literal +D=/path/to/chroot +cd /usr/src +mkdir -p $D +make world TARGET=arm TARGET_ARCH=armv6 DESTDIR=$D +make distribution TARGET=arm TARGET_ARCH=armv6 DESTDIR=$D +.Ed +.Pp +With +.Pa emulators/qemu-user-static +from the +.Fx +Ports Collection, the emulator must be copied into the jail path +specified in the binmiscctl command. +Using the example above: +.Bd -literal +mkdir $D/usr/local/bin +cp /usr/local/bin/qemu-arm-static $D/usr/local/bin +.Ed +.Pp +Now the user can chroot into the environment normally, as root: +.Bd -literal +chroot $D +.Ed .Sh SEE ALSO .Xr lli 1 , -.Xr execve 2 +.Xr execve 2 , +.Xr jail 8 .Sh HISTORY The .Cm binmiscctl
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