c869bc5348
Since 7a046358d9 the top-level COPYING
file has been deleted and replaced by DISCLAIMER, LICENSE, and NOTICE
files. However, some references to the old COPYING file remained in
Kconfig help text and documentation.
Documentation/contributing/coding_style.rst:
Documentation/introduction/about.rst:
boards/arm/lpc17xx_40xx/olimex-lpc1766stk/README.txt:
boards/arm/sam34/arduino-due/README.txt:
boards/arm/sam34/sam4l-xplained/README.txt:
boards/arm/sama5/giant-board/README.md:
boards/arm/sama5/sama5d2-xult/README.txt:
boards/arm/sama5/sama5d4-ek/README.txt:
boards/arm/samd2l2/samd20-xplained/README.txt:
boards/arm/samd2l2/samd21-xplained/README.txt:
boards/arm/samd2l2/saml21-xplained/README.txt:
boards/arm/stm32/hymini-stm32v/README.txt:
boards/arm/stm32/stm3210e-eval/README.txt:
fs/fat/Kconfig:
libs/libc/string/Kconfig:
* Updates stale references to the old top-level COPYING file to
either LICENSE or NOTICE (or both), as appropriate in each
instance.
93 lines
2.8 KiB
Plaintext
93 lines
2.8 KiB
Plaintext
#
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# For a description of the syntax of this configuration file,
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# see the file kconfig-language.txt in the NuttX tools repository.
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#
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menu "errno Decode Support"
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config LIBC_STRERROR
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bool "Enable strerror"
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default n
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---help---
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strerror() is useful because it decodes 'errno' values into a human readable
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strings. But it can also require a lot of memory. If this option is not
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selected, strerror() will still exist in the build but it will not decode error
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values. This option should be used by other logic to decide if it should use
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strerror() or not. For example, the NSH application will not use strerror()
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if this option is not selected; perror() will not use strerror() is this option
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is not selected (see also NSH_STRERROR).
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config LIBC_STRERROR_SHORT
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bool "Use short error descriptions in strerror()"
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default n
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depends on LIBC_STRERROR
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---help---
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If this option is selected, then strerror() will use a shortened string when
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it decodes the error. Specifically, strerror() is simply use the string that
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is the common name for the error. For example, the 'errno' value of 2 will
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produce the string "No such file or directory" is LIBC_STRERROR_SHORT
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is not defined but the string "ENOENT" is LIBC_STRERROR_SHORT is defined.
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config LIBC_PERROR_STDOUT
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bool "perror() to stdout"
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default n
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---help---
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POSIX requires that perror() provide its output on stderr. This option may
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be defined, however, to provide perror() output that is serialized with
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other stdout messages.
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endmenu # errno Decode Support
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menu "memcpy/memset Options"
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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 LICENSE 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 support 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 support 64-bit operations
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efficiently.
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endmenu # memcpy/memset Options
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