nuttx/lib/Kconfig

#
# For a description of the syntax of this configuration file,
# see misc/tools/kconfig-language.txt.
#

config STDIO_BUFFER_SIZE
	int "C STDIO buffer size"
	default 64
	---help---
		Size of buffers using within the C buffered I/O interfaces.
		(printf, putchar, fwrite, etc.).

config STDIO_LINEBUFFER
	bool "STDIO line buffering"
	default y
	---help---
		Flush buffer I/O whenever a newline character is found in
		the output data stream.

config NUNGET_CHARS
	int "Number unget() characters"
	default 2
	---help---
		Number of characters that can be buffered by ungetc() (Only if NFILE_STREAMS > 0)

config CONFIG_LIB_HOMEDIR
	string "Home directory"
	default "/"
	depends on !DISABLE_ENVIRON
	---help---
		The home directory to use with operations like such as 'cd ~'

config HAVE_LIBM
	bool "Architecture-specific libm.a"
	default n
	---help---
		Architecture specific logic provides an implementation of libm.a
		and a math.h header file that can be found at include/arch/math.h.

config NOPRINTF_FIELDWIDTH
	bool "Disable sprintf support fieldwidth"
	default n
	---help---
	sprintf-related logic is a
	little smaller if we do not support fieldwidthes

config LIBC_FLOATINGPOINT
	bool "Enable floating point in printf"
	default n
	---help---
		By default, floating point
		support in printf, sscanf, etc. is disabled.

config ARCH_LOWPUTC
	bool "Low-level console output"
	default "y"
	---help---
	  architecture supports low-level, boot time console output
	  
config ENABLE_ARCH_OPTIMIZED_FUN
	bool "Enable arch optimized functions"
	default n
	---help---
		Allow for architecture optimized implementations
		
		The architecture can provide optimized versions of the
		following to improve system performance

		The architecture may provide custom versions of certain
		standard header files:
		config ARCH_MATH_H, CONFIG_ARCH_STDBOOL_H, CONFIG_ARCH_STDINT_H

if 	ENABLE_ARCH_OPTIMIZED_FUN
config ARCH_MEMCPY
	bool "memcpy"
	default n

config ARCH_MEMCMP
	bool "memcmp"
	default n

config ARCH_MEMMOVE
	bool "memmove"
	default n

config ARCH_MEMSET
	bool "memset"
	default n

config ARCH_STRCMP
	bool "strcmp"
	default n

config ARCH_STRCPY
	bool "strcpy"
	default n

config ARCH_STRNCPY
	bool "strncpy"
	default n

config ARCH_STRLEN
	bool "strlen"
	default n

config ARCH_STRNLEN
	bool "strlen"
	default n

config ARCH_BZERO
	bool "bzero"
	default n
endif