config/kernel/linux.in
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Tue Jan 03 22:57:25 2012 +0100 (2012-01-03)
changeset 2936 2dfea349d307
parent 2921 856eacaf0e59
child 2940 a7a9df2662cc
permissions -rw-r--r--
cc/gcc: build core compilers for canadian

Currently, we rely on an existing external cross-compiler targetting
the target, to build the C library.

This can pause quite a few problems if that compiler is different from
the one we are building, because it could introduce some ABI issues.

This patch removes this dependency, by building the core compilers
as we do for standard cross, and also by building the binutils and
gcc, for running on the build machine.

This means we no longer need to offer the cross-sompiler selection in
the menuconfig.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
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# Linux kernel options
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## select KERNEL_SUPPORTS_SHARED_LIBS
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##
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## help Build a toolchain targeting systems running Linux as a kernel.
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config KERNEL_LINUX_USE_CUSTOM_HEADERS
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    bool
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    prompt "Use pre-installed headers tree (OBSOLETE)"
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    depends on OBSOLETE
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    help
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      If you have some pre-installed kernel headers lying around, you can
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      enter the path to these headers, below, they will be copied from
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      there, and into the toolchain's sysroot.
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      Note:
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      This will *not* let you use a complete kernel tree!
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      If you want to use your own full kernel tree, then you want to say 'N'
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      here, and select KERNEL_LINUX_CUSTOM, in the versions list, below.
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if ! KERNEL_LINUX_USE_CUSTOM_HEADERS
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choice
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    bool
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    prompt "Linux kernel version"
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# Don't remove next line
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# CT_INSERT_VERSION_BELOW
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config KERNEL_V_3_3_1
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    bool
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    prompt "3.3.1"
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config KERNEL_V_3_3
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    bool
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    prompt "3.3"
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config KERNEL_V_3_2_14
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    bool
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    prompt "3.2.14"
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config KERNEL_V_3_1_10
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    bool
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    prompt "3.1.10"
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config KERNEL_V_3_0_27
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    bool
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    prompt "3.0.27"
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config KERNEL_V_2_6_39_4
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    bool
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    prompt "2.6.39.4"
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config KERNEL_V_2_6_38_8
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    bool
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    prompt "2.6.38.8"
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config KERNEL_V_2_6_37_6
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    bool
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    prompt "2.6.37.6"
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config KERNEL_V_2_6_36_4
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    bool
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    prompt "2.6.36.4"
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config KERNEL_V_2_6_33_20
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    bool
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    prompt "2.6.33.20"
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    help
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      This is primarily for the use of those people who are stuck using the
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      .33-rt kernel.  Anyone else who really wants to use the .33 kernel tree
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      is welcome to use this one as well.
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config KERNEL_V_2_6_32_59
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    bool
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    prompt "2.6.32.59 (longterm)"
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    help
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      The Linux 2.6.32 tree is a "longterm" maintenance branch.
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      It is intended to fill the niche for users who are not using distribution
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      kernels but want to use a regression-free kernel for a longer time.
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      Critical bug fixes to later 2.6 releases are often ported to this branch
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      which makes 2.6.32 a very useful base for many embedded developers seeking
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      stable APIs or those who do not need the latest bleeding edge features.
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      ... and no, this kernel has not undergone any specific QA testing.
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      See the original announcement by Greg Kroah-Hartman in the following
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      mailing list entry:
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        http://marc.info/?l=linux-kernel&m=126384198403392&w=4
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config KERNEL_V_2_6_31_14
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    bool
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    prompt "2.6.31.14"
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config KERNEL_V_2_6_27_62
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    bool
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    prompt "2.6.27.62 (longterm)"
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    help
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      The Linux 2.6.27 tree is a "longterm" maintenance branch.
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      It is intended to fill the niche for users who are not using distribution
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      kernels but want to use a regression-free kernel for a longer time.
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      Critical bug fixes to later 2.6 releases are often ported to this branch
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      which makes 2.6.27 a very useful base for many embedded developers seeking
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      stable APIs or those who do not need the latest bleeding edge features.
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      ... and no, this kernel has not undergone any specific QA testing.
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      See the original announcement by Adrian Bunk in the following mailing list
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      entry:
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        http://marc.info/?l=linux-kernel&m=122375909403298&w=4
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      It is now maintained by Greg Kroah-Hartman, see this mailing list entry:
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        http://marc.info/?l=linux-kernel&m=129133701916793&w=4
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config KERNEL_LINUX_CUSTOM
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    bool
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    prompt "custom tarball or directory"
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    help
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      Use a local tarball or local kernel directory of a complete kernel source tree.
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config KERNEL_LINUX_CUSTOM_LOCATION
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    string
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    prompt "Path to custom source, tarball or directory"
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    depends on KERNEL_LINUX_CUSTOM
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    help
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      Enter here the path to the tarball of your full kernel tree or
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      kernel directory
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endchoice
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config KERNEL_VERSION
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    string
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# Don't remove next line
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# CT_INSERT_VERSION_STRING_BELOW
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    default "3.3.1" if KERNEL_V_3_3_1
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    default "3.3" if KERNEL_V_3_3
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    default "3.2.14" if KERNEL_V_3_2_14
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    default "3.1.10" if KERNEL_V_3_1_10
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    default "3.0.27" if KERNEL_V_3_0_27
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    default "2.6.39.4" if KERNEL_V_2_6_39_4
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    default "2.6.38.8" if KERNEL_V_2_6_38_8
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    default "2.6.37.6" if KERNEL_V_2_6_37_6
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    default "2.6.36.4" if KERNEL_V_2_6_36_4
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    default "2.6.33.20" if KERNEL_V_2_6_33_20
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    default "2.6.32.59" if KERNEL_V_2_6_32_59
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    default "2.6.31.14" if KERNEL_V_2_6_31_14
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    default "2.6.27.62" if KERNEL_V_2_6_27_62
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    default "custom" if KERNEL_LINUX_CUSTOM
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endif # ! KERNEL_LINUX_USE_CUSTOM_HEADERS
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if KERNEL_LINUX_USE_CUSTOM_HEADERS
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config KERNEL_LINUX_CUSTOM_PATH
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    string
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    prompt "Path to custom headers directory/tarball"
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    help
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      See KERNEL_LINUX_CUSTOM_IS_TARBALL, below.
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config KERNEL_LINUX_CUSTOM_IS_TARBALL
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    bool
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    prompt "This is a tarball"
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    help
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      If you say 'n' here, the path above is expected to point to a directory
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      containing readily prepared headers
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      If you say 'y' here, then the path above is expected to point to a
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      tarball of such a directory.
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      Eg., if your headers are available in: /foo/bar/buz/my_hdrs/include,
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      say 'n' here, and enter: /foo/bar/buz/my_hdrs below.
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      Now, passing a tarball around is easier than passing a directory, so
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      if you want to, you can make a tarball of /foo/bar/buz/my_hdrs/include,
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      say 'y' here, and enter the path to this tarball below.
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endif # KERNEL_LINUX_USE_CUSTOM_HEADERS