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phoenix |
#
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# For a description of the syntax of this configuration file,
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# see extra/config/Kconfig-language.txt
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#
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choice
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prompt "Target Processor Endianness"
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help
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This is the endianness you wish to build use. Choose either Big
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Endian, or Little Endian.
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config ARCH_LITTLE_ENDIAN
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bool "Little Endian"
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config ARCH_BIG_ENDIAN
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bool "Big Endian"
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endchoice
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config ARCH_HAS_NO_MMU
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bool
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default n
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config UCLIBC_HAS_MMU
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bool "Target CPU has a memory management unit (MMU)"
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default y
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depends !ARCH_HAS_NO_MMU
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help
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If your target CPU does not have a memory management unit (MMU),
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then answer N here. Normally, Linux runs on systems with an MMU.
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If you are building a uClinux system, answer N.
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Most people will answer Y.
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config UCLIBC_HAS_FLOATS
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bool "Enable floating point number support"
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default y
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help
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This option allows you to entirely omit all floating point number
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support from uClibc. This will cause floating point functions like
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strtod() to be omitted from uClibc. Other floating point functions,
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such as printf() and scanf() will still be included in the library,
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but will not contain support for floating point numbers.
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Answering N to this option can reduce the size of uClibc. Most people
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will answer Y.
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config HAS_FPU
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bool "Target CPU has a floating point unit (FPU)"
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depends on UCLIBC_HAS_FLOATS
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default y
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help
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If your target CPU does not have a Floating Point Unit (FPU) or a
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kernel FPU emulator, but you still wish to support floating point
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functions, then uClibc will need to be compiled with soft floating
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point support (-msoft-float). If your target CPU does not have an
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FPU or an FPU emulator within the Linux kernel, then you should
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answer N.
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Most people will answer Y.
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config UCLIBC_HAS_SOFT_FLOAT
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bool
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depends on UCLIBC_HAS_FLOATS && !HAS_FPU
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default y
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config DO_C99_MATH
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bool "Enable full C99 math library support"
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depends on UCLIBC_HAS_FLOATS
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default n
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help
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If you want the uClibc math library to contain the full set C99
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math library features, then answer Y. If you leave this set to
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N the math library will contain only the math functions that were
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listed as part of the traditional POSIX/IEEE 1003.1b-1993 standard.
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Leaving this option set to N will save around 35k on an x86 system.
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If your applications require the newer C99 math library functions,
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then answer Y.
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config WARNINGS
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string "Compiler Warnings"
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default "-Wall"
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help
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Set this to the set of gcc warnings you wish to see while compiling.
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config KERNEL_SOURCE
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string "Linux kernel header location"
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default "/usr/src/linux"
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help
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The kernel source you use to compile with should be the same as the
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Linux kernel you run your apps on. uClibc doesn't even try to achieve binary
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compatibility across kernel versions. So don't expect, for example, uClibc
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compiled with Linux kernel 2.0.x to implement lchown properly, since 2.0.x
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can't do that. Similarly, if you compile uClibc vs Linux 2.4.x kernel headers,
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but then run on Linux 2.0.x, lchown will be compiled into uClibc, but won't
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work at all. You have been warned.
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config UCLIBC_UCLINUX_BROKEN_MUNMAP
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bool
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depends on !UCLIBC_HAS_MMU
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default y
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config EXCLUDE_BRK
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bool
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depends on !UCLIBC_HAS_MMU
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default y
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config C_SYMBOL_PREFIX
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string
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default "_" if ARCH_HAS_C_SYMBOL_PREFIX
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default "" if !ARCH_HAS_C_SYMBOL_PREFIX
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config HAVE_DOT_CONFIG
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bool
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default y
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