Re: External toolchain

[Khem Raj <raj.khem@gmail.com>]

On Wed, Feb 23, 2011 at 3:49 AM, Luca Bolognini <l.bolognini@tiscali.it> wrote:
> Hi,thank you Ahsan for you reply.I solved my issue and I succeed in using external toolchain CodeSourcery2009q1 to cross-compile some packages in my OE 2010.12 release.However I didn't create any symlink of arm-angstrom-linux-gnueabi-gcc to arm-none-linux-gnueabi-gcc.I added an instantiation of TARGET_SYS variable to the hints of Denys and Tom (se reference link in my previous email).It's important to do so in order not to have errors in the do_install task of external-toolchain-csl.bb recipe.Then, as a resume, my openembedded/conf/distro/angstrom-2008.1.conf file changed in this way:
> # Set the toolchain type (internal, external) and brand (generic, csl etc.)# LUCATARGET_VENDOR = "-none"TOOLCHAIN_TYPE ?= "external"TOOLCHAIN_BRAND ?= "csl"TOOLCHAIN_PATH = "/opt/ti/codesourcery"TARGET_SYS = "arm-none-linux-gnueabi"TOOLCHAIN_SYSPATH = "${TOOLCHAIN_PATH}/arm-none-linux-gnueabi"PATH_prepend = "${TOOLCHAIN_PATH}/bin:"require conf/distro/include/toolchain-external.inc
> instead of
> # Set the toolchain type (internal, external) and brand (generic, csl etc.)TOOLCHAIN_TYPE ?= "internal"TOOLCHAIN_BRAND ?= ""
> Then it worked.Bye,Luca
>

good it worked for you. Would you please document the steps you took
from the beginning to get it working ?
and send it as reply to this email ? We would like to add this into
the wiki or FAQs

Thanks for your help
-Khem

>
>
> ----Messaggio originale----
> Da: Noor_Ahsan@mentor.com
> Data: 22/02/2011 10.47
> A: <openembedded-devel@lists.openembedded.org>
> Ogg: Re: [oe] External toolchain
>
> Hello Luca,
>
> Probably you need to create symbolic links of arm-angstrom-linux-
> gnueabi-gcc to arm-none-linux-gnueabi-gcc. OE assumes that the compiler name is arm-angstrom-linux-gnueabi-gcc. You can see the "CC" variable value by take environment of libtool-cross (using -e options) that how OE is creating the name of compiler.
>
> Regards,
> Noor
>
> -----Original Message-----
> From: openembedded-devel-bounces@lists.openembedded.org [mailto:openembedded-devel-bounces@lists.openembedded.org] On Behalf Of Luca Bolognini
> Sent: Tuesday, February 22, 2011 2:16 PM
> To: Open Embedded Mailing List
> Subject: [oe] External toolchain
>
> Hi,
> I would like to use an external toolchain (CodeSourcery2009q1) to
> cross-compile some packages for my beagleboard (more or less the same
> that happens in Arago) and then I expect not to download glibc package
> and cross-compile again libc, libpthread and so on. I would like to use
> the libraries inside my external CodeSourcery SDK.
> I followed some
> hints by Denys and Tom ( http://lists.linuxtogo.
> org/pipermail/openembedded-devel/2010-April/019521.html ) and I put
>
> #
> LUCA
> TARGET_VENDOR = "-none"
> TOOLCHAIN_TYPE ?= "external"
>
> TOOLCHAIN_BRAND ?= "csl"
> TOOLCHAIN_PATH = "/opt/ti/codesourcery"
>
> TOOLCHAIN_SYSPATH = "${TOOLCHAIN_PATH}/arm-none-linux-gnueabi"
>
> PATH_prepend = "${TOOLCHAIN_PATH}/bin:"
> require
> conf/distro/include/toolchain-external.inc
>
> inside my
> openembedded/conf/distro/angstrom-2008.1.conf
>
> As you know, cross-
> compiler provided by CodeSoucery is arm-none-linux-gnueabi-gcc but I
> get the following error with libtool-cross_2.2.6b.bb:
> Build
> Configuration:
> BB_VERSION        = "1.8.19"
> METADATA_BRANCH   =
> "release-2010.12"
> METADATA_REVISION = "dec3967"
> TARGET_ARCH       =
> "arm"
> TARGET_OS         = "linux-gnueabi"
> MACHINE           =
> "beagleboard"
> DISTRO            = "angstrom"
> DISTRO_VERSION    =
> "2010.7-test-20110221"
> TARGET_FPU        = "hard"
> [...]
> | checking for
> arm-angstrom-linux-gnueabi-gcc... arm-angstrom-linux-gnueabi-gcc -
> march=armv7-a -mtune=cortex-a8 -mfpu=neon -mfloat-abi=softfp -mthumb-
> interwork -mno-thumb
> | checking whether the C compiler works... no
> |
> configure: error: in `/home/bolognini/diskp2/diskp2.4/pure-
> oe/build/tmp/work/armv7a-angstrom-linux-gnueabi/libtool-cross-2.2.6b-
> r27.1/libtool-2.2.6b':
> | configure: error: C compiler cannot create
> executables
>
> Obviously OE doesn't have to find arm-angstrom-linux-
> gnueabi-gcc, but why does it search for arm-angstrom-linux-gnueabi-gcc
> instead of arm-none-linux-gnueabi-gcc ?
> What's wrong inside angstrom-
> 2008.1.conf or what am I missing?
>
> Thank you for your support
> Luca
>
>
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> SCONTO DI 240 EURO!
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