setarch − change reported architecture in new program environment and set personality flags
setarch arch [options] [program [arguments]]
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 the architectures that can be set.
Causes the program to see a kernel version number beginning with 2.6.
Specifies that processes should use a maximum of 3GB of address space on systems where it is supported (ADDR_LIMIT_3GB).
Ignored (for backward compatibility only).
Turns on ADDR_LIMIT_32BIT.
Userspace function pointers point to descriptors (turns on FDPIC_FUNCPTRS).
Turns on SHORT_INODE.
Changes the way virtual memory is allocated (turns on the ADDR_COMPAT_LAYOUT).
Disables randomization of the virtual address space (turns on ADDR_NO_RANDOMIZE).
Turns on WHOLE_SECONDS.
Turns on STICKY_TIMEOUTS.
Turns on READ_IMPLIES_EXEC.
Turns on MMAP_PAGE_ZERO.
Display version information and exit.
Display help text and exit.
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
("mailto:email@example.com") Jindrich Novy
The setarch command is part of the util-linux package and is available from ("ftp://ftp.kernel.org/pub/linux/utils/util-linux/") Linux Kernel Archive.
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