2010-09-19 21:54:09 +02:00
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# Selection options for crosstool-NG
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if BR2_TOOLCHAIN_CTNG
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choice
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prompt "Crosstool-NG C library"
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config BR2_TOOLCHAIN_CTNG_uClibc
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bool "uClibc"
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# Although eglibc can be configured to opt-out some features,
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# let's not deal with that for the time being, it's complex...
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config BR2_TOOLCHAIN_CTNG_eglibc
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bool "eglibc"
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select BR2_LARGEFILE
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select BR2_INET_IPV6
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select BR2_INET_RPC
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select BR2_ENABLE_LOCALE
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select BR2_USE_WCHAR
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config BR2_TOOLCHAIN_CTNG_glibc
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bool "glibc"
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select BR2_LARGEFILE
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select BR2_INET_IPV6
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select BR2_INET_RPC
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select BR2_ENABLE_LOCALE
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select BR2_USE_WCHAR
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endchoice # C library
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config BR2_TOOLCHAIN_CTNG_LIBC
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string
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default "uClibc" if BR2_TOOLCHAIN_CTNG_uClibc
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default "eglibc" if BR2_TOOLCHAIN_CTNG_eglibc
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default "glibc" if BR2_TOOLCHAIN_CTNG_glibc
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config BR2_TOOLCHAIN_CTNG_CONFIG
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string "crosstool-NG configuration file to use"
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2011-05-22 00:05:40 +02:00
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default "toolchain/toolchain-crosstool-ng/crosstool-ng.config-uClibc" if BR2_TOOLCHAIN_CTNG_uClibc
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default "toolchain/toolchain-crosstool-ng/crosstool-ng.config-eglibc" if BR2_TOOLCHAIN_CTNG_eglibc
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default "toolchain/toolchain-crosstool-ng/crosstool-ng.config-glibc" if BR2_TOOLCHAIN_CTNG_glibc
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2010-09-19 21:54:09 +02:00
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help
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Enter here the crosstool-NG's .config file to use.
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2011-05-22 00:05:40 +02:00
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To fine-tune your toolchain, you can also call:
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make ctng-menuconfig
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If unsure, keep the default value.
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2010-09-19 21:54:09 +02:00
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toolchain: Improve C library option selection
Turn BR2_LARGEFILE, BR2_INET_IPV6, BR2_INET_RPC, BR2_USE_WCHAR,
BR2_ENABLE_LOCALE and BR2_PROGRAM_INVOCATION into hidden options.
Then, for Buildroot toolchains, external toolchains and Crosstool-NG
toolchains, provide visible options that selects the hidden options.
This allows :
* To show a different label and help text in the case of Buildroot
toolchain (do you want to enable feature X ?) and in the case of
external toolchain (is feature X available in your toolchain ?)
* To not show any option when a glibc external toolchain is selected
(since glibc is assumed to support all of largefile, IPv6, RPC,
WCHAR, locale and program invocation) and have them all selected in
that case.
There is some amount of duplication between Buildroot toolchain config
options and Crosstool-NG toolchain config options, because kconfig
doesn't allow to source the same Config.in file twice (even if under
mutually exclusive conditions). This duplication is more readable that
the hack that consists in splitting files in multiple pieces.
However, this commit changes the name of the options visible in the
configuration interface, so existing .config files will have to be
updated accordingly.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Reviewed-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
2010-12-13 17:27:37 +01:00
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if BR2_TOOLCHAIN_CTNG_uClibc
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comment "Toolchain Options"
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config BR2_TOOLCHAIN_CTNG_uClibc_LARGEFILE
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bool "Enable large file (files > 2 GB) support"
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select BR2_LARGEFILE
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help
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Enable this option if you want your toolchain to support
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files bigger than 2 GB.
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config BR2_TOOLCHAIN_CTNG_uClibc_INET_IPV6
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bool "Enable IPv6 support"
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select BR2_INET_IPV6
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help
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Enable this option if you want your toolchain to support
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IPv6.
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config BR2_TOOLCHAIN_CTNG_uClibc_INET_RPC
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bool "Enable RPC support"
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select BR2_INET_RPC
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help
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Enable this option if you want your toolchain to support
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RPC (needed for NFS, for example).
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config BR2_TOOLCHAIN_CTNG_uClibc_WCHAR
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bool "Enable WCHAR support"
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select BR2_USE_WCHAR
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help
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Enable this option if you want your toolchain to support
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wide characters (i.e characters longer than 8 bits, needed
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for locale support).
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config BR2_TOOLCHAIN_CTNG_uClibc_LOCALE
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bool "Enable toolchain locale/i18n support"
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select BR2_TOOLCHAIN_CTNG_uClibc_WCHAR
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select BR2_ENABLE_LOCALE
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help
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Enable this option if you want your toolchain to support
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localization and internationalization.
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endif # BR2_TOOLCHAIN_CTNG_uClibc
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2010-12-13 17:27:41 +01:00
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config BR2_TOOLCHAIN_CTNG_CXX
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bool "Enable C++ support"
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select BR2_INSTALL_LIBSTDCPP
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help
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Enable this option if you want your toolchain to support the
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C++ language and you want C++ libraries to be installed on
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your target system.
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2010-12-13 17:27:48 +01:00
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choice
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prompt "Thread library implementation"
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2012-05-09 11:17:07 +02:00
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default BR2_TOOLCHAIN_CTNG_THREADS_NPTL
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2010-12-13 17:27:48 +01:00
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help
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Enable thread support and select thread implementation. With
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glibc, thread support is mandatory but several
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implementations are available. With uClibc, thread support
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is optional, and when enabled, several implementations are
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available. However, not all thread variants work with all
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versions of uClibc for all architectures, the "linuxthreads
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(stable/old)" may be a working fallback.
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config BR2_TOOLCHAIN_CTNG_THREADS_NONE
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bool "none"
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depends on BR2_TOOLCHAIN_CTNG_uClibc
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config BR2_TOOLCHAIN_CTNG_THREADS_PTHREADS
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bool "linuxthreads"
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select BR2_TOOLCHAIN_HAS_THREADS
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config BR2_TOOLCHAIN_CTNG_THREADS_PTHREADS_OLD
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bool "linuxthreads (stable/old)"
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select BR2_TOOLCHAIN_HAS_THREADS
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depends on BR2_TOOLCHAIN_CTNG_uClibc
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config BR2_TOOLCHAIN_CTNG_THREADS_NPTL
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bool "Native POSIX Threading (NPTL)"
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select BR2_TOOLCHAIN_HAS_THREADS
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endchoice
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2010-09-19 21:54:09 +02:00
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endif # BR2_TOOLCHAIN_CTNG
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