bc994c533c
The BR2_TOOLCHAIN_SOURCE option is removed in a future commit. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
195 lines
6.5 KiB
Groff
195 lines
6.5 KiB
Groff
#
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config BR2_LARGEFILE
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bool "Enable large file (files > 2 GB) support?"
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depends on !BR2_cris
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help
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If you are building your own toolchain and you want to
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support files larger than 2GB then enable this option.
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If you have an external binary toolchain that has been
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built with large file support (files > 2GB) then enable
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this option.
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config BR2_INET_IPV6
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bool "Enable IPv6"
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help
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If you are building your own toolchain and you want to
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enable IPV6 support then enable this option.
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If you have an external binary toolchain that has been
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built with IPV6 support then enable this option.
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config BR2_INET_RPC
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bool "Enable RPC"
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help
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Enable RPC. RPC support is needed for nfs.
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If you are building your own toolchain and you want to
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enable RPC support then enable this option.
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If you have an external binary toolchain that has been
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built with RPC support then enable this option.
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config BR2_ENABLE_LOCALE
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bool "Enable toolchain locale/i18n support?"
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select BR2_USE_WCHAR
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help
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If you are building your own toolchain and you want to
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enable locale/i18n support then enable this option.
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If you have an external binary toolchain that has been
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built with locale/i18n support then enable this option.
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config BR2_ENABLE_LOCALE_PREGENERATED
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bool "Use pregenerated locale data?"
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depends on BR2_ENABLE_LOCALE && BR2_TOOLCHAIN_BUILDROOT && BROKEN # tarball missing
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help
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Instead of generating the locale data locally you can optionally
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download a pregenerated set of locales.
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Say N here unless your buildhost lacks locale support and you
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desparately want to use internationalization on your target.
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config BR2_ENABLE_LOCALE_PURGE
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bool "Purge unwanted locales"
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help
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Explicitly specify what locales to install on target. If N
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then all locales supported by packages are installed.
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config BR2_ENABLE_LOCALE_WHITELIST
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string "Locales to keep"
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default "C en_US de fr"
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depends on BR2_ENABLE_LOCALE_PURGE
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help
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Whitespace seperated list of locales to allow on target.
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Locales not listed here will be removed from the target.
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See 'locale -a' on your host for a list of locales available
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on your build host, or have a look in /usr/share/locale in
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the target file system for available locales.
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Notice that listing a locale here doesn't guarantee that it
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will be available on the target - That purely depends on the
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support for that locale in the selected packages.
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config BR2_USE_WCHAR
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bool "Enable WCHAR support"
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help
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If you are building your own toolchain and you want to
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enable WCHAR support then enable this option.
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If you have an external binary toolchain that has been built
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with WCHAR support then enable this option.
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config BR2_PREFER_SOFT_FLOAT
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bool
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default y if BR2_arm || BR2_armeb || BR2_avr32 || BR2_mips || BR2_mipsel || BR2_nios2
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config BR2_SOFT_FLOAT
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bool "Use software floating point by default"
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depends on BR2_arm || BR2_armeb || BR2_avr32 || BR2_mips || BR2_mipsel || BR2_powerpc || BR2_nios2
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default $(BR2_PREFER_SOFT_FLOAT)
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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 everything will need to be compiled with soft
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floating point support (-msoft-float).
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config BR2_USE_SSP
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bool "Enable stack protection support"
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help
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Enable stack smashing protection support using GCCs
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-fstack-protector[-all] option.
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See http://www.linuxfromscratch.org/hints/downloads/files/ssp.txt
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for details.
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choice
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prompt "Thread library implementation"
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default BR2_PTHREADS_OLD
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help
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If you are building your own toolchain then select the type of
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libpthreads you want to use.
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Not all thread variants work with all versions of uClibc,
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the "linuxthreads (stable/old)" may be a working fallback
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if you need threading at all.
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If you have an external binary toolchain then select the type
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of libpthreads it was built with.
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config BR2_PTHREADS_NONE
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bool "none"
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config BR2_PTHREADS
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bool "linuxthreads"
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config BR2_PTHREADS_OLD
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bool "linuxthreads (stable/old)"
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config BR2_PTHREADS_NATIVE
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bool "Native POSIX Threading (NPTL)"
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endchoice
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config BR2_PROGRAM_INVOCATION
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bool "Enable 'program invocation name'"
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help
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Support for the GNU-specific program_invocation_name and
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program_invocation_short_name strings. Some GNU packages
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(like tar and coreutils) utilize these for extra useful
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output, but in general are not required.
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If you have an external binary toolchain that has been built
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with program invocation support then enable this option.
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config BR2_GCC_CROSS_CXX
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bool
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help
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If you are building your own toolchain and want to build
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a C++ cross-compiler this needs to be enabled.
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If you have an external binary toolchain that has a C++ compiler
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and you want to use it then you need to enable this option.
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config BR2_INSTALL_LIBSTDCPP
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bool "Build/install c++ compiler and libstdc++?"
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select BR2_LARGEFILE if (!BR2_GCC_SUPPORTS_SYSROOT && BR2_TOOLCHAIN_BUILDROOT)
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select BR2_GCC_CROSS_CXX
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help
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If you are building your own toolchain and want to build and install
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the C++ compiler and library then you need to enable this option.
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If you have an external toolchain that has been built with C++
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support and you want to use the compiler / library then you need
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to select this option.
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config BR2_TARGET_OPTIMIZATION
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string "Target Optimizations"
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default "-Os -pipe"
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help
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Optimizations to use when building for the target host.
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if BR2_TOOLCHAIN_BUILDROOT
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source "toolchain/elf2flt/Config.in"
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source "toolchain/mklibs/Config.in"
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source "toolchain/sstrip/Config.in"
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config BR2_ENABLE_MULTILIB
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bool "Enable multilib support?"
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help
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Build libraries to support different ABIs.
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config BR2_VFP_FLOAT
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bool "Use ARM Vector Floating Point unit"
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depends on !BR2_SOFT_FLOAT
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depends on BR2_arm || BR2_armeb
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help
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Setting this option will enable the "-mfpu=vfp" option.
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If your ARM CPU has a Vector Floating Point Unit (VFP)
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and the toolchain supports the option, then the
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code can be optimized.
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Most people will answer N.
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config BR2_CROSS_TOOLCHAIN_TARGET_UTILS
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bool "Include target utils in cross toolchain"
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default y
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help
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When using buildroot to build a deployable cross toolchain,
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it is handy to include certain target apps with that toolchain
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as a convenience.
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Examples include ldd, gdbserver, and strace.
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Answer Y if you want these apps (if built) copied into the
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cross toolchain dir under <arch>-linux-uclibc/target_utils/.
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endif
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