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libc/Kconfig: Use menus vs. comments to better organize the C library menus
This commit is contained in:
Gregory Nutt
@@ -3,177 +3,6 @@
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# see the file kconfig-language.txt in the NuttX tools repository.
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#
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comment "Standard C Library Options"
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config STDIO_DISABLE_BUFFERING
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bool "Disable STDIO Buffering"
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default n
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---help---
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Tiny systems may need to disable all support for I/O buffering in
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order to minimize the memory footprint.
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NOTE that even if STDIO buffering is enabled, you can still disable
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buffering by setting CONFIG_STDIO_BUFFER_SIZE=0 or dynamically
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through the setvbuf() interface. In this case, however, memory
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used for buffering will be eliminated, of course, but there will be
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no reduction in static code size. Only setting
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CONFIG_STDIO_DISABLE_BUFFERING will reduce static code size.
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The setvbuf() interface is not available if
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CONFIG_STDIO_DISABLE_BUFFERING is selected.
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if !STDIO_DISABLE_BUFFERING
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config STDIO_BUFFER_SIZE
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int "STDIO buffer size"
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default 64
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---help---
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Size of buffers using within the C buffered I/O interfaces (printf,
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putchar, fwrite, etc.). This function sets the initial I/O buffer
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size. Zero disables I/O buffering initially. Any buffer size may
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be subsequently modified using setvbuf().
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config STDIO_LINEBUFFER
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bool "STDIO line buffering"
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default y
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---help---
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Sets the default behavior to flush buffered I/O whenever a newline
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character is found in the output data stream. This setting just
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sets the initial default behavior of all streams. The behavior of
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an individual stream can be changed via setvbuf().
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endif # !STDIO_DISABLE_BUFFERING
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config NUNGET_CHARS
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int "Number unget() characters"
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default 2
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---help---
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Number of characters that can be buffered by ungetc() (Only if NFILE_STREAMS > 0)
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source libc/math/Kconfig
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source libc/machine/Kconfig
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source libc/stdlib/Kconfig
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source libc/unistd/Kconfig
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source libc/string/Kconfig
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source libc/dllfcn/Kconfig
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source libc/modlib/Kconfig
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config NOPRINTF_FIELDWIDTH
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bool "Disable sprintf support fieldwidth"
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default n
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---help---
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sprintf-related logic is a little smaller if we do not support field
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widths.
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config LIBC_FLOATINGPOINT
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bool "Enable floating point in printf"
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default n
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---help---
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By default, floating point
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support in printf, sscanf, etc. is disabled.
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config LIBC_LONG_LONG
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bool "Enable long long support in printf"
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default y if !DEFAULT_SMALL
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default n if DEFAULT_SMALL
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---help---
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Enables support for long long formats in printf, sscanf, etc. is
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enabled. This is enabled by default but if you are trying to
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reduce the FLASH footprint, then disabling this feature is one
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option. The FLASH saves comes not from disabling the long long
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formats, but rather from omitting the large long long arithmetic
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libraries that will be drawn into the build if long long support
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is enabled.
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config LIBC_SCANSET
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bool "Scanset support"
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default n
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---help---
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Add scanset support to sscanf().
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source libc/wchar/Kconfig
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source libc/locale/Kconfig
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choice
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prompt "Newline Options"
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default EOL_IS_EITHER_CRLF
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---help---
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This selection determines the line terminating character that is used.
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Some environments may return CR as end-of-line, others LF, and others
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both. If not specified, the default is either CR or LF (but not both)
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as the line terminating charactor.
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config EOL_IS_CR
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bool "EOL is CR"
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config EOL_IS_LF
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bool "EOL is LF"
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config EOL_IS_BOTH_CRLF
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bool "EOL is CR and LF"
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config EOL_IS_EITHER_CRLF
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bool "EOL is CR or LF"
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endchoice
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source libc/time/Kconfig
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config MEMCPY_VIK
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bool "Vik memcpy()"
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default n
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depends on !LIBC_ARCH_MEMCPY
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---help---
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Select this option to use the optimized memcpy() function by Daniel Vik.
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Select this option for improved performance at the expense of increased
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size. See licensing information in the top-level COPYING file.
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if MEMCPY_VIK
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config MEMCPY_PRE_INC_PTRS
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bool "Pre-increment pointers"
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default n
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---help---
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Use pre-increment of pointers. Default is post increment of pointers.
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config MEMCPY_INDEXED_COPY
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bool "Array indexing"
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default y
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---help---
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Copying data using array indexing. Using this option, disables the
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MEMCPY_PRE_INC_PTRS option.
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config MEMCPY_64BIT
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bool "64-bit memcpy()"
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default n
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---help---
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Compiles memcpy() for architectures that suppport 64-bit operations
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efficiently.
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endif # MEMCPY_VIK
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config MEMSET_OPTSPEED
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bool "Optimize memset() for speed"
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default n
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depends on !LIBC_ARCH_MEMSET
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---help---
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Select this option to use a version of memcpy() optimized for speed.
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Default: memcpy() is optimized for size.
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config MEMSET_64BIT
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bool "64-bit memset()"
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default n
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depends on MEMSET_OPTSPEED
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---help---
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Compiles memset() for architectures that suppport 64-bit operations
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efficiently.
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source libc/tls/Kconfig
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source libc/net/Kconfig
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source libc/netdb/Kconfig
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source libc/misc/Kconfig
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source libc/wqueue/Kconfig
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config LIB_HEX2BIN
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bool "Intel HEX to binary conversion library"
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default n
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