[linux-2.6-block.git] / lib / vdso / Kconfig

# SPDX-License-Identifier: GPL-2.0

config HAVE_GENERIC_VDSO
	bool

if HAVE_GENERIC_VDSO

config GENERIC_GETTIMEOFDAY
	bool
	help
	  This is a generic implementation of gettimeofday vdso.
	  Each architecture that enables this feature has to
	  provide the fallback implementation.

config GENERIC_VDSO_32
	bool
	depends on GENERIC_GETTIMEOFDAY && !64BIT
	help
	  This config option helps to avoid possible performance issues
	  in 32 bit only architectures.

config GENERIC_COMPAT_VDSO
	bool
	help
	  This config option enables the compat VDSO layer.

config CROSS_COMPILE_COMPAT_VDSO
	string "32 bit Toolchain prefix for compat vDSO"
	default ""
	depends on GENERIC_COMPAT_VDSO
	help
	  Defines the cross-compiler prefix for compiling compat vDSO.
	  If a 64 bit compiler (i.e. x86_64) can compile the VDSO for
	  32 bit, it does not need to define this parameter.

endif
Commit	Line	Data
00b26474 VF	1	# SPDX-License-Identifier: GPL-2.0
	2
	3	config HAVE_GENERIC_VDSO
	4	bool
	5
	6	if HAVE_GENERIC_VDSO
	7
	8	config GENERIC_GETTIMEOFDAY
	9	bool
	10	help
	11	This is a generic implementation of gettimeofday vdso.
	12	Each architecture that enables this feature has to
	13	provide the fallback implementation.
	14
	15	config GENERIC_VDSO_32
	16	bool
	17	depends on GENERIC_GETTIMEOFDAY && !64BIT
	18	help
	19	This config option helps to avoid possible performance issues
	20	in 32 bit only architectures.
	21
	22	config GENERIC_COMPAT_VDSO
	23	bool
	24	help
	25	This config option enables the compat VDSO layer.
	26
	27	config CROSS_COMPILE_COMPAT_VDSO
	28	string "32 bit Toolchain prefix for compat vDSO"
	29	default ""
	30	depends on GENERIC_COMPAT_VDSO
	31	help
	32	Defines the cross-compiler prefix for compiling compat vDSO.
	33	If a 64 bit compiler (i.e. x86_64) can compile the VDSO for
	34	32 bit, it does not need to define this parameter.
	35
	36	endif