linux/arch/um/Kconfig.common
Richard Weinberger f911d73105 um: Skip futex_atomic_cmpxchg_inatomic() test
futex_atomic_cmpxchg_inatomic() does not work on UML because
it triggers a copy_from_user() in kernel context.
On UML copy_from_user() can only be used if the kernel was called
by a real user space process such that UML can use ptrace()
to fetch the value.

Reported-by: Miklos Szeredi <miklos@szeredi.hu>
Suggested-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Richard Weinberger <richard@nod.at>
Tested-by: Daniel Walter <d.walter@0x90.at>
2015-01-04 14:20:26 +01:00

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config UML
bool
default y
select HAVE_ARCH_AUDITSYSCALL
select HAVE_UID16
select HAVE_FUTEX_CMPXCHG if FUTEX
select GENERIC_IRQ_SHOW
select GENERIC_CPU_DEVICES
select GENERIC_IO
select GENERIC_CLOCKEVENTS
select TTY # Needed for line.c
config MMU
bool
default y
config NO_IOMEM
def_bool y
config ISA
bool
config SBUS
bool
config PCI
bool
config PCMCIA
bool
# Yet to do!
config TRACE_IRQFLAGS_SUPPORT
bool
default n
config LOCKDEP_SUPPORT
bool
default y
config STACKTRACE_SUPPORT
bool
default y
select STACKTRACE
config GENERIC_CALIBRATE_DELAY
bool
default y
config GENERIC_BUG
bool
default y
depends on BUG
config HZ
int
default 100
config SUBARCH
string
option env="SUBARCH"