diff options
Diffstat (limited to 'nuttx/lib/Kconfig')
| -rw-r--r-- | nuttx/lib/Kconfig | 44 |
1 files changed, 42 insertions, 2 deletions
diff --git a/nuttx/lib/Kconfig b/nuttx/lib/Kconfig index 9e60201c2f..d94a274f9b 100644 --- a/nuttx/lib/Kconfig +++ b/nuttx/lib/Kconfig @@ -23,7 +23,7 @@ config NUNGET_CHARS ---help--- Number of characters that can be buffered by ungetc() (Only if NFILE_STREAMS > 0) -config CONFIG_LIB_HOMEDIR +config LIB_HOMEDIR string "Home directory" default "/" depends on !DISABLE_ENVIRON @@ -51,6 +51,46 @@ config LIBC_FLOATINGPOINT By default, floating point support in printf, sscanf, etc. is disabled. +config LIBC_STRERROR + bool "Enable strerror" + default n + ---help--- + strerror() is useful because it decodes 'errno' values into a human readable + strings. But it can also require a lot of memory. If this option is selected, + strerror() will still exist in the build but it will not decode error values. + This option should be used by other logic to decide if it should use strerror() + or not. For example, the NSH application will not use strerror() if this + option is not selected; perror() will not use strerror() is this option is not + selected (see also NSH_STRERROR). + +config LIBC_STRERROR_SHORT + bool "Use short error descriptions in strerror()" + default n + depends on LIBC_STRERROR + ---help--- + If this option is selected, then strerror() will use a shortened string when + it decodes the error. Specifically, strerror() is simply use the string that + is the common name for the error. For example, the 'errno' value of 2 will + produce the string "No such file or directory" is LIBC_STRERROR_SHORT + is not defined but the string "ENOENT" is LIBC_STRERROR_SHORT is defined. + +config LIBC_PERROR_STDOUT + bool "perror() to stdout" + default n + ---help--- + POSIX requires that perror() provide its output on stderr. This option may + be defined, however, to provide perror() output that is serialized with + other stdout messages. + +config LIBC_PERROR_DEVNAME + string "perror() to device" + default "/dev/console" + depends on !LIBC_PERROR_STDOUT + ---help--- + Another non-standard option is to provide perror() output to a logging device + or file. LIBC_PERROR_DEVNAME may be defined to be any write-able, + character device (or file). + config ARCH_LOWPUTC bool "Low-level console output" default "y" @@ -68,7 +108,7 @@ config ENABLE_ARCH_OPTIMIZED_FUN The architecture may provide custom versions of certain standard header files: - config ARCH_MATH_H, CONFIG_ARCH_STDBOOL_H, CONFIG_ARCH_STDINT_H + config ARCH_MATH_H, ARCH_STDBOOL_H, ARCH_STDINT_H if ENABLE_ARCH_OPTIMIZED_FUN config ARCH_MEMCPY |