123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187 |
- #
- # For a description of the syntax of this configuration file,
- # see Documentation/kbuild/config-language.txt.
- #
- mainmenu "uClibc C Library Configuration"
- menu "Target Architecture Features and Options"
- choice
- prompt "Target Processor Type"
- default CONFIG_386
- help
- This is the processor type of your CPU. This information is used for
- optimizing purposes. To build a library that will run on all x86 CPU
- types (albeit not optimally fast), you can specify "386" here. If
- you pick anything other than "386", there is no guarantee that uClibc
- will even run on anything other than the selected processor type.
- Here are the settings recommended for greatest speed:
- - "386" for the AMD/Cyrix/Intel 386DX/DXL/SL/SLC/SX, Cyrix/TI
- 486DLC/DLC2, UMC 486SX-S and NexGen Nx586. Only "386" kernels
- will run on a 386 class machine.
- - "486" for the AMD/Cyrix/IBM/Intel 486DX/DX2/DX4 or
- SL/SLC/SLC2/SLC3/SX/SX2 and UMC U5D or U5S.
- - "586" for generic Pentium CPUs lacking the TSC
- (time stamp counter) register.
- - "Pentium-Classic" for the Intel Pentium.
- - "Pentium-MMX" for the Intel Pentium MMX.
- - "Pentium-Pro" for the Intel Pentium Pro/Celeron/Pentium II.
- - "Pentium-III" for the Intel Pentium III
- and Celerons based on the Coppermine core.
- - "Pentium-4" for the Intel Pentium 4.
- - "K6" for the AMD K6, K6-II and K6-III (aka K6-3D).
- - "Athlon" for the AMD K7 family (Athlon/Duron/Thunderbird).
- - "Crusoe" for the Transmeta Crusoe series.
- - "Winchip-C6" for original IDT Winchip.
- - "Winchip-2" for IDT Winchip 2.
- - "Winchip-2A" for IDT Winchips with 3dNow! capabilities.
- - "CyrixIII/VIA C3" for VIA Cyrix III or VIA C3.
- If you don't know what to do, choose "386".
- config CONFIG_386
- bool "386"
- config CONFIG_486
- bool "486"
- config CONFIG_586
- bool "586/K5/5x86/6x86/6x86MX"
- config CONFIG_586TSC
- bool "Pentium-Classic"
- config CONFIG_586MMX
- bool "Pentium-MMX"
- config CONFIG_686
- bool "Pentium-Pro/Celeron/Pentium-II"
- config CONFIG_PENTIUMIII
- bool "Pentium-III/Celeron(Coppermine)"
- config CONFIG_PENTIUM4
- bool "Pentium-4"
- config CONFIG_K6
- bool "K6/K6-II/K6-III"
- config CONFIG_K7
- bool "Athlon/Duron/K7"
- config CONFIG_ELAN
- bool "Elan"
- config CONFIG_CRUSOE
- bool "Crusoe"
- config CONFIG_WINCHIPC6
- bool "Winchip-C6"
- config CONFIG_WINCHIP2
- bool "Winchip-2"
- config CONFIG_WINCHIP3D
- bool "Winchip-2A/Winchip-3"
- config CONFIG_CYRIXIII
- bool "CyrixIII/VIA-C3"
- endchoice
- config UCLIBC_HAS_MMU
- bool "Target CPU has a memory management unit (MMU)"
- default y
- help
- If your target CPU does not have a memory management unit (MMU),
- then answer N here. Normally, Linux runs on systems with an MMU.
- If you are building a uClinux system, answer N.
- Most people will answer Y.
- config UCLIBC_HAS_FLOATS
- bool "Enable floating point number support"
- default y
- help
- This option allows you to entirely omit all floating point number
- support from uClibc. This will cause floating point functions like
- strtod() to be entirely omitted from uClibc. Other functions, such
- as printf() and scanf() will still be included in the library, but
- will not contain support for floating point numbers.
- Answering N to this option can reduce the size of uClibc. Most people
- will answer Y.
- config HAS_FPU
- bool "Target CPU has a floating point unit (FPU)"
- depends on UCLIBC_HAS_FLOATS
- default y
- help
- If your target CPU does not have a floating management unit (FPU),
- but you wish to support floating point functions, then uClibc will
- need to be compiled with soft floating point support (-msoft-float).
- If your target CPU does not have an FPU or an FPU emulator within the
- Linux kernel, then you should answer N.
- Most people will answer Y.
- config DO_C99_MATH
- bool "Enable full C99 math library support"
- depends on UCLIBC_HAS_FLOATS
- default n
- help
- If you want the uClibc math library to contain the full set C99
- math library features, then answer Y. If you leave this set to
- N the math library will contain only the math functions that were
- listed as part of the traditionla POSIX/IEEE 1003.1b-1993 standard.
- Leaving this option set to N will save around 35k on an x86 system.
- If your applications require the newer C99 math library functions,
- then answer Y.
- config WARNINGS
- string "Compiler Warnings"
- default "-Wall"
- help
- Set this to the set of gcc warnings you wish to see while compiling.
- config KERNEL_SOURCE
- string "Linux kernel header location"
- default "/usr/src/linux"
- help
- The kernel source you use to compile with should be the same as the
- Linux kernel you run your apps on. uClibc doesn't even try to achieve binary
- compatibility across kernel versions. So don't expect, for example, uClibc
- compiled with Linux kernel 2.0.x to implement lchown properly, since 2.0.x
- can't do that. Similarly, if you compile uClibc vs Linux 2.4.x kernel headers,
- but then run on Linux 2.0.x, lchown will be compiled into uClibc, but won't
- work at all. You have been warned.
- config C_SYMBOL_PREFIX
- string
- default ""
- config UCLIBC_UCLINUX_BROKEN_MUNMAP
- bool
- depends on !HAS_MMU
- default y
- config HAVE_ELF
- bool
- default y
- config NO_UNDERSCORES
- bool
- default n
- config HAVE_DOT_HIDDEN
- bool
- default n
- endmenu
- source "extra/Configs/Config.in"
|