Unix/Linux Go Back    


Linux 2.6 - man page for setarch (linux section 8)

Linux & Unix Commands - Search Man Pages
Man Page or Keyword Search:   man
Select Man Page Set:       apropos Keyword Search (sections above)


SETARCH(8)			    Linux Programmer's Manual			       SETARCH(8)

NAME
       setarch	-  change  reported  architecture  in new program environment and set personality
       flags

SYNOPSIS
       setarch arch [options] [program [arguments]]
       arch [options] [program [arguments]]

DESCRIPTION
       setarch This utility currently only affects the output of uname -m.  For  example,  on  an
       AMD64  system,  running	'setarch i386 program' will cause 'program' to see i686 (or other
       relevant arch) instead of x86_64 as machine type. It also allows to set various	personal-
       ity options. The default program is /bin/sh.

OPTIONS
       -v, --verbose
	      Be verbose.

       -h, --help
	      Display help (it is also displayed when setarch takes no arguments).

       -3, --3gb
	      Specifies  that  processes  should use a maximum of 3GB of address space on systems
	      where it is supported (ADDR_LIMIT_3GB).

       -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.

EXAMPLES
       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

AUTHOR
       Elliot Lee <sopwith@redhat.com>
       Jindrich Novy <jnovy@redhat.com>

AVAILABILITY
       The setarch command is part of the util-linux package and is available from ftp://ftp.ker-
       nel.org/pub/linux/utils/util-linux/.

setarch 				     Jun 2007				       SETARCH(8)
Unix & Linux Commands & Man Pages : ©2000 - 2018 Unix and Linux Forums


All times are GMT -4. The time now is 05:27 AM.