setarch — change reported architecture in new program environment and set personality flags
setarch arch [options] [
program [arguments] ]
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. The default
program is
/bin/sh.
−v,−−verboseBe verbose.
−h,−−helpDisplay help (it is also displayed when setarch takes no arguments).
Specifies that processes should use a maximum of 3GB of address space on systems where it is supported (ADDR_LIMIT_3GB).
−B,−−32bitTurns on ADDR_LIMIT_32BIT.
−F,−−fdpic−funcptrsUserspace function pointers point to descriptors (turns on FDPIC_FUNCPTRS).
−I,−−short−inodeTurns on SHORT_INODE.
−L,−−addr−compat−layoutChanges the way virtual memory is allocated (turns on the ADDR_COMPAT_LAYOUT).
−R,−−addr−no−randomizeDisables randomization of the virtual address space (turns on ADDR_NO_RANDOMIZE).
−S,−−whole−secondsTurns on WHOLE_SECONDS.
−T,−−sticky−timeoutsTurns on STICKY_TIMEOUTS.
−X−−read−implies−execTurns on READ_IMPLIES_EXEC.
−Z,mmap−page−zeroTurns on MMAP_PAGE_ZERO.