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NAME | SYNOPSIS | DESCRIPTION | OPTIONS | EXAMPLES | AUTHOR | AVAILABILITY | COLOPHON |
SETARCH(8) System Administration SETARCH(8)
setarch - change reported architecture in new program environment and
set personality flags
setarch arch [options] [program [argument...]]
arch [options] [program [argument...]]
setarch --list|-h|-V
setarch currently only affects the output of uname -m. For example,
on an AMD64 system, running setarch i386 program will cause program
to see i686 instead of x86_64 as the machine type. It also allows to
set various personality options. The default program is /bin/sh.
--list List the architectures that setarch knows about. Whether
setarch can actually set each of these architectures depends
on the running kernel.
--uname-2.6
Causes the program to see a kernel version number beginning
with 2.6.
-v, --verbose
Be verbose.
-3, --3gb
Specifies that processes should use a maximum of 3GB of
address space on systems where it is supported
(ADDR_LIMIT_3GB).
--4gb Ignored (for backward compatibility only).
-B, --32bit
Turns on ADDR_LIMIT_32BIT.
-F, --fdpic-funcptrs
Userspace function pointers point to descriptors (turns on
FDPIC_FUNCPTRS).
-I, --short-inode
Turns on SHORT_INODE.
-L, --addr-compat-layout
Changes the way virtual memory is allocated (turns on the
ADDR_COMPAT_LAYOUT).
-R, --addr-no-randomize
Disables randomization of the virtual address space (turns on
ADDR_NO_RANDOMIZE).
-S, --whole-seconds
Turns on WHOLE_SECONDS.
-T, --sticky-timeouts
Turns on STICKY_TIMEOUTS.
-X, --read-implies-exec
Turns on READ_IMPLIES_EXEC.
-Z, --mmap-page-zero
Turns on MMAP_PAGE_ZERO.
-V, --version
Display version information and exit.
-h, --help
Display help text and exit.
setarch ppc32 rpmbuild --target=ppc --rebuild foo.src.rpm
setarch ppc32 -v -vL3 rpmbuild --target=ppc --rebuild bar.src.rpm
setarch ppc32 --32bit rpmbuild --target=ppc --rebuild foo.src.rpm
Elliot Lee ⟨sopwith@redhat.com⟩
Jindrich Novy ⟨jnovy@redhat.com⟩
The setarch command is part of the util-linux package and is
available from Linux Kernel Archive
⟨https://www.kernel.org/pub/linux/utils/util-linux/⟩.
This page is part of the util-linux (a random collection of Linux
utilities) project. Information about the project can be found at
⟨https://www.kernel.org/pub/linux/utils/util-linux/⟩. If you have a
bug report for this manual page, send it to
util-linux@vger.kernel.org. This page was obtained from the
project's upstream Git repository
⟨git://git.kernel.org/pub/scm/utils/util-linux/util-linux.git⟩ on
2017-07-05. If you discover any rendering problems in this HTML ver‐
sion of the page, or you believe there is a better or more up-to-date
source for the page, or you have corrections or improvements to the
information in this COLOPHON (which is not part of the original man‐
ual page), send a mail to man-pages@man7.org
util-linux December 2014 SETARCH(8)
Pages that refer to this page: personality(2)