SETARCH

NAME

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

SYNOPSIS

setarch arch [options] program

arch [options] program

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.
-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.
-I: Turns on SHORT_INODE.
-L: Changes the way virtual memory is allocated (turns on the ADDR_COMPAT_LAYOUT).
-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/