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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 personality options.

OPTIONS
       -v     Be verbose.

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

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

       -B     Turns on ADDR_LIMIT_32BIT.

       -F     Userspace	 function  pointers  point  to	descriptors  (turns on
	      FDPIC_FUNCPTRS).

       -I     Turns on SHORT_INODE.

       -L     Changes the way  virtual	memory	is  allocated  (turns  on  the
	      ADDR_COMPAT_LAYOUT).

       -R     Disables	randomization  of  the virtual address space (turns on
	      ADDR_NO_RANDOMIZE).

       -S     Turns on WHOLE_SECONDS.

       -T     Turns on STICKY_TIMEOUTS.

       -X     Turns on READ_IMPLIES_EXEC.

       -Z     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

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

BUGS
       Report bugs via http://bugzilla.redhat.com/bugzilla/

setarch				   Oct 2004			    SETARCH(8)
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