kernel_optimize_test/arch/nds32/Kconfig
Yury Norov 942fa985e9 32-bit userspace ABI: introduce ARCH_32BIT_OFF_T config option
All new 32-bit architectures should have 64-bit userspace off_t type, but
existing architectures has 32-bit ones.

To enforce the rule, new config option is added to arch/Kconfig that defaults
ARCH_32BIT_OFF_T to be disabled for new 32-bit architectures. All existing
32-bit architectures enable it explicitly.

New option affects force_o_largefile() behaviour. Namely, if userspace
off_t is 64-bits long, we have no reason to reject user to open big files.

Note that even if architectures has only 64-bit off_t in the kernel
(arc, c6x, h8300, hexagon, nios2, openrisc, and unicore32),
a libc may use 32-bit off_t, and therefore want to limit the file size
to 4GB unless specified differently in the open flags.

Signed-off-by: Yury Norov <ynorov@caviumnetworks.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Yury Norov <ynorov@marvell.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2019-02-19 10:10:05 +01:00

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#
# For a description of the syntax of this configuration file,
# see Documentation/kbuild/kconfig-language.txt.
#
config NDS32
def_bool y
select ARCH_32BIT_OFF_T
select ARCH_HAS_SYNC_DMA_FOR_CPU
select ARCH_HAS_SYNC_DMA_FOR_DEVICE
select ARCH_WANT_FRAME_POINTERS if FTRACE
select CLKSRC_MMIO
select CLONE_BACKWARDS
select COMMON_CLK
select GENERIC_ATOMIC64
select GENERIC_CPU_DEVICES
select GENERIC_CLOCKEVENTS
select GENERIC_IRQ_CHIP
select GENERIC_IRQ_SHOW
select GENERIC_LIB_ASHLDI3
select GENERIC_LIB_ASHRDI3
select GENERIC_LIB_CMPDI2
select GENERIC_LIB_LSHRDI3
select GENERIC_LIB_MULDI3
select GENERIC_LIB_UCMPDI2
select GENERIC_STRNCPY_FROM_USER
select GENERIC_STRNLEN_USER
select GENERIC_TIME_VSYSCALL
select HANDLE_DOMAIN_IRQ
select HAVE_ARCH_TRACEHOOK
select HAVE_DEBUG_KMEMLEAK
select HAVE_EXIT_THREAD
select HAVE_REGS_AND_STACK_ACCESS_API
select HAVE_PERF_EVENTS
select IRQ_DOMAIN
select LOCKDEP_SUPPORT
select MODULES_USE_ELF_RELA
select OF
select OF_EARLY_FLATTREE
select NO_IOPORT_MAP
select RTC_LIB
select THREAD_INFO_IN_TASK
select HAVE_FUNCTION_TRACER
select HAVE_FUNCTION_GRAPH_TRACER
select HAVE_FTRACE_MCOUNT_RECORD
select HAVE_DYNAMIC_FTRACE
help
Andes(nds32) Linux support.
config GENERIC_CALIBRATE_DELAY
def_bool y
config GENERIC_CSUM
def_bool y
config GENERIC_HWEIGHT
def_bool y
config GENERIC_LOCKBREAK
def_bool y
depends on PREEMPT
config RWSEM_GENERIC_SPINLOCK
def_bool y
config TRACE_IRQFLAGS_SUPPORT
def_bool y
config STACKTRACE_SUPPORT
def_bool y
config FIX_EARLYCON_MEM
def_bool y
config PGTABLE_LEVELS
default 2
menu "System Type"
source "arch/nds32/Kconfig.cpu"
config NR_CPUS
int
default 1
config MMU
def_bool y
config NDS32_BUILTIN_DTB
string "Builtin DTB"
default ""
help
User can use it to specify the dts of the SoC
endmenu
menu "Kernel Features"
source "kernel/Kconfig.hz"
endmenu
menu "Power management options"
config SYS_SUPPORTS_APM_EMULATION
bool
config ARCH_SUSPEND_POSSIBLE
def_bool y
source "kernel/power/Kconfig"
endmenu