[meta-arm,4/4] external-arm-sdk-toolchain: add recipe to package gcc/gdb/binutils cross binaries

From: Denys Dmytriyenko <denys@ti.com>

Allows re-use of prebuilt ARM toolchain binaries for SDK generation.

This code is upstreamed from meta-arago layer.

Signed-off-by: Denys Dmytriyenko <denys@ti.com>
---
 .../conf/distro/include/tcmode-external-arm.inc    |   4 +
 .../external-arm-sdk-toolchain.bb                  | 136 +++++++++++++++++++++
 2 files changed, 140 insertions(+)
 create mode 100644 meta-arm-toolchain/recipes-devtools/external-arm-toolchain/external-arm-sdk-toolchain.bb

On Mon, 15 Jun 2020 at 13:37, Denys Dmytriyenko <denis@denix.org> wrote:
>
> From: Denys Dmytriyenko <denys@ti.com>
>
> Allows re-use of prebuilt ARM toolchain binaries for SDK generation.
>
> This code is upstreamed from meta-arago layer.
>
> Signed-off-by: Denys Dmytriyenko <denys@ti.com>
> ---
>  .../conf/distro/include/tcmode-external-arm.inc    |   4 +
>  .../external-arm-sdk-toolchain.bb                  | 136 +++++++++++++++++++++
>  2 files changed, 140 insertions(+)
>  create mode 100644 meta-arm-toolchain/recipes-devtools/external-arm-toolchain/external-arm-sdk-toolchain.bb
>

Thanks for pushing this recipe upstream. It's good to have the tools
binaries packaged in SDK from pre-built toolchain rather than building
from source.

So I just gave it a try using poky distro which fails with following error:

$ bitbake -c populate_sdk core-image-base
<snip>
Error:
 Problem: package
packagegroup-cross-canadian-qemuarm64-1.0-r0.x86_64_nativesdk requires
gdb-cross-canadian-aarch64, but none of the providers can be installed
  - conflicting requests
  - nothing provides libpython2.7.so.1.0()(64bit) needed by
gdb-cross-canadian-aarch64-8.3.0.20190709+git-r0.x86_64_nativesdk
(try to add '--skip-broken' to skip uninstallable packages)
<snip>

Is there something that I missed while testing?

-Sumit

> diff --git a/meta-arm-toolchain/conf/distro/include/tcmode-external-arm.inc b/meta-arm-toolchain/conf/distro/include/tcmode-external-arm.inc
> index 9171380..08b87ef 100644
> --- a/meta-arm-toolchain/conf/distro/include/tcmode-external-arm.inc
> +++ b/meta-arm-toolchain/conf/distro/include/tcmode-external-arm.inc
> @@ -45,6 +45,10 @@ PREFERRED_PROVIDER_glibc-mtrace = "external-arm-toolchain"
>  PREFERRED_PROVIDER_libc-mtrace = "external-arm-toolchain"
>  PREFERRED_PROVIDER_virtual/linux-libc-headers = "external-arm-toolchain"
>
> +PREFERRED_PROVIDER_gcc-cross-canadian-${TRANSLATED_TARGET_ARCH} ?= "external-arm-sdk-toolchain-${TRANSLATED_TARGET_ARCH}"
> +PREFERRED_PROVIDER_binutils-cross-canadian-${TRANSLATED_TARGET_ARCH} ?= "external-arm-sdk-toolchain-${TRANSLATED_TARGET_ARCH}"
> +PREFERRED_PROVIDER_gdb-cross-canadian-${TRANSLATED_TARGET_ARCH} ?= "external-arm-sdk-toolchain-${TRANSLATED_TARGET_ARCH}"
> +
>  TOOLCHAIN_OPTIONS = " --sysroot=${STAGING_DIR_HOST}"
>
>  DISTRO_FEATURES_LIBC = "ipv4 ipv6 libc-backtrace libc-big-macros libc-bsd libc-cxx-tests libc-catgets libc-crypt \
> diff --git a/meta-arm-toolchain/recipes-devtools/external-arm-toolchain/external-arm-sdk-toolchain.bb b/meta-arm-toolchain/recipes-devtools/external-arm-toolchain/external-arm-sdk-toolchain.bb
> new file mode 100644
> index 0000000..88fd20e
> --- /dev/null
> +++ b/meta-arm-toolchain/recipes-devtools/external-arm-toolchain/external-arm-sdk-toolchain.bb
> @@ -0,0 +1,136 @@
> +inherit cross-canadian
> +
> +PN = "external-arm-sdk-toolchain-${TARGET_ARCH}"
> +BPN = "external-arm-sdk-toolchain"
> +
> +INHIBIT_PACKAGE_DEBUG_SPLIT = "1"
> +INHIBIT_PACKAGE_STRIP = "1"
> +INHIBIT_SYSROOT_STRIP = "1"
> +INHIBIT_DEFAULT_DEPS = "1"
> +EXCLUDE_FROM_SHLIBS = "1"
> +
> +EAT_LICENSE ??= ""
> +
> +LICENSE = "${EAT_LICENSE}"
> +LIC_FILES_CHKSUM = "file://${COMMON_LICENSE_DIR}/MIT;md5=0835ade698e0bcf8506ecda2f7b4f302"
> +
> +INSANE_SKIP_gcc-cross-canadian-${TRANSLATED_TARGET_ARCH} = "dev-so staticdev file-rdeps libdir"
> +INSANE_SKIP_gdb-cross-canadian-${TRANSLATED_TARGET_ARCH} = "dev-so file-rdeps"
> +INSANE_SKIP_binutils-cross-canadian-${TRANSLATED_TARGET_ARCH} = "dev-so file-rdeps"
> +
> +PROVIDES = "\
> +       gcc-cross-canadian-${TRANSLATED_TARGET_ARCH} \
> +       gdb-cross-canadian-${TRANSLATED_TARGET_ARCH} \
> +       binutils-cross-canadian-${TRANSLATED_TARGET_ARCH} \
> +"
> +
> +PACKAGES = "\
> +       gcc-cross-canadian-${TRANSLATED_TARGET_ARCH} \
> +       gdb-cross-canadian-${TRANSLATED_TARGET_ARCH} \
> +       binutils-cross-canadian-${TRANSLATED_TARGET_ARCH} \
> +"
> +
> +# Adjust defaults in line with external toolchain
> +bindir = "${exec_prefix}/bin"
> +libdir = "${exec_prefix}/lib"
> +libexecdir = "${exec_prefix}/libexec"
> +datadir = "${exec_prefix}/share"
> +gcclibdir = "${libdir}/gcc"
> +
> +FILES_gcc-cross-canadian-${TRANSLATED_TARGET_ARCH} = "\
> +       ${prefix}/${EAT_TARGET_SYS}/lib/libstdc++.* \
> +       ${prefix}/${EAT_TARGET_SYS}/lib/libgcc_s.* \
> +       ${prefix}/${EAT_TARGET_SYS}/lib/libsupc++.* \
> +       ${gcclibdir}/${EAT_TARGET_SYS}/${EAT_VER_GCC}/* \
> +       ${bindir}/${TARGET_PREFIX}gcov \
> +       ${bindir}/${TARGET_PREFIX}gcc* \
> +       ${bindir}/${TARGET_PREFIX}g++ \
> +       ${bindir}/${TARGET_PREFIX}cpp \
> +       ${libexecdir}/* \
> +"
> +
> +FILES_gdb-cross-canadian-${TRANSLATED_TARGET_ARCH} = "\
> +       ${bindir}/${TARGET_PREFIX}gdb* \
> +       ${datadir}/gdb/* \
> +"
> +
> +FILES_binutils-cross-canadian-${TRANSLATED_TARGET_ARCH} = "\
> +       ${prefix}/${EAT_TARGET_SYS}/bin/ld* \
> +       ${prefix}/${EAT_TARGET_SYS}/bin/objcopy \
> +       ${prefix}/${EAT_TARGET_SYS}/bin/strip \
> +       ${prefix}/${EAT_TARGET_SYS}/bin/nm \
> +       ${prefix}/${EAT_TARGET_SYS}/bin/ranlib \
> +       ${prefix}/${EAT_TARGET_SYS}/bin/as \
> +       ${prefix}/${EAT_TARGET_SYS}/bin/ar \
> +       ${prefix}/${EAT_TARGET_SYS}/bin/objdump \
> +       ${prefix}/${EAT_TARGET_SYS}/lib/ldscripts/* \
> +       ${bindir}/${TARGET_PREFIX}ld* \
> +       ${bindir}/${TARGET_PREFIX}addr2line \
> +       ${bindir}/${TARGET_PREFIX}objcopy \
> +       ${bindir}/${TARGET_PREFIX}readelf \
> +       ${bindir}/${TARGET_PREFIX}strip \
> +       ${bindir}/${TARGET_PREFIX}nm \
> +       ${bindir}/${TARGET_PREFIX}ranlib \
> +       ${bindir}/${TARGET_PREFIX}gprof \
> +       ${bindir}/${TARGET_PREFIX}as \
> +       ${bindir}/${TARGET_PREFIX}c++filt \
> +       ${bindir}/${TARGET_PREFIX}ar \
> +       ${bindir}/${TARGET_PREFIX}strings \
> +       ${bindir}/${TARGET_PREFIX}objdump \
> +       ${bindir}/${TARGET_PREFIX}size \
> +"
> +
> +DESCRIPTION_gcc-cross-canadian-${TRANSLATED_TARGET_ARCH} = "The GNU cc and gcc C compilers"
> +DESCRIPTION_gdb-cross-canadian-${TRANSLATED_TARGET_ARCH} = "gdb - GNU debugger"
> +DESCRIPTION_binutils-cross-canadian-${TRANSLATED_TARGET_ARCH} = "A GNU collection of binary utilities"
> +
> +LICENSE_gcc-cross-canadian-${TRANSLATED_TARGET_ARCH} = "${EAT_GCC_LICENSE}"
> +LICENSE_gdb-cross-canadian-${TRANSLATED_TARGET_ARCH} = "${EAT_GDB_LICENSE}"
> +LICENSE_binutils-cross-canadian-${TRANSLATED_TARGET_ARCH} = "${EAT_BFD_LICENSE}"
> +
> +PKGV_gcc-cross-canadian-${TRANSLATED_TARGET_ARCH} = "${EAT_VER_GCC}"
> +PKGV_gdb-cross-canadian-${TRANSLATED_TARGET_ARCH} = "${EAT_VER_GDB}"
> +PKGV_binutils-cross-canadian-${TRANSLATED_TARGET_ARCH} = "${EAT_VER_BFD}"
> +
> +do_install() {
> +       install -d ${D}${prefix}/${EAT_TARGET_SYS}/bin
> +       install -d ${D}${prefix}/${EAT_TARGET_SYS}/lib
> +       install -d ${D}${bindir}
> +       install -d ${D}${libdir}
> +       install -d ${D}${prefix}/${EAT_TARGET_SYS}/lib/ldscripts
> +       install -d ${D}${libexecdir}
> +       install -d ${D}${datadir}/gdb
> +       install -d ${D}${gcclibdir}/${EAT_TARGET_SYS}/${EAT_VER_GCC}/include
> +
> +       CP_ARGS="-Prf --preserve=mode,timestamps --no-preserve=ownership"
> +
> +       # gcc
> +       for i in libstdc++.* libgcc_s.* libsupc++.*; do
> +               cp ${CP_ARGS} ${EXTERNAL_TOOLCHAIN}/${EAT_TARGET_SYS}/${EAT_LIBDIR}/$i ${D}${prefix}/${EAT_TARGET_SYS}/lib
> +       done
> +       cp ${CP_ARGS} ${EXTERNAL_TOOLCHAIN}/lib/gcc/${EAT_TARGET_SYS}/${EAT_VER_GCC}/* ${D}${gcclibdir}/${EAT_TARGET_SYS}/${EAT_VER_GCC}
> +       for i in gcov gcc* g++ cpp; do
> +               cp ${CP_ARGS} ${EXTERNAL_TOOLCHAIN}/bin/${TARGET_PREFIX}$i ${D}${bindir}
> +       done
> +       cp ${CP_ARGS} ${EXTERNAL_TOOLCHAIN}/libexec/* ${D}${libexecdir}
> +
> +       # gdb
> +       cp ${CP_ARGS} ${EXTERNAL_TOOLCHAIN}/bin/${TARGET_PREFIX}gdb* ${D}${bindir}
> +       cp ${CP_ARGS} ${EXTERNAL_TOOLCHAIN}/share/gdb/* ${D}${datadir}/gdb/
> +
> +       # binutils
> +       for i in ld* objcopy strip nm ranlib as ar objdump; do
> +               cp ${CP_ARGS} ${EXTERNAL_TOOLCHAIN}/${EAT_TARGET_SYS}/bin/$i ${D}${prefix}/${EAT_TARGET_SYS}/bin
> +       done
> +       cp ${CP_ARGS} ${EXTERNAL_TOOLCHAIN}/${EAT_TARGET_SYS}/lib/ldscripts/* ${D}${prefix}/${EAT_TARGET_SYS}/lib/ldscripts
> +       for i in ld* addr2line objcopy readelf strip nm ranlib gprof as c++filt ar strings objdump size; do
> +               cp ${CP_ARGS} ${EXTERNAL_TOOLCHAIN}/bin/${TARGET_PREFIX}$i ${D}${bindir}
> +       done
> +}
> +
> +python () {
> +    if not d.getVar("EAT_VER_MAIN", False):
> +        raise bb.parse.SkipPackage("External ARM toolchain not configured (EAT_VER_MAIN not set).")
> +    if d.getVar('TCLIBC', True) != "glibc":
> +        raise bb.parse.SkipPackage("incompatible with %s" % d.getVar('TCLIBC', True))
> +}
> --
> 2.7.4
>
>
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On Mon, Jun 15, 2020 at 06:15:17PM +0530, Sumit Garg wrote:
> On Mon, 15 Jun 2020 at 13:37, Denys Dmytriyenko <denis@denix.org> wrote:
> >
> > From: Denys Dmytriyenko <denys@ti.com>
> >
> > Allows re-use of prebuilt ARM toolchain binaries for SDK generation.
> >
> > This code is upstreamed from meta-arago layer.
> >
> > Signed-off-by: Denys Dmytriyenko <denys@ti.com>
> > ---
> >  .../conf/distro/include/tcmode-external-arm.inc    |   4 +
> >  .../external-arm-sdk-toolchain.bb                  | 136 +++++++++++++++++++++
> >  2 files changed, 140 insertions(+)
> >  create mode 100644 meta-arm-toolchain/recipes-devtools/external-arm-toolchain/external-arm-sdk-toolchain.bb
> >
> 
> Thanks for pushing this recipe upstream. It's good to have the tools
> binaries packaged in SDK from pre-built toolchain rather than building
> from source.
> 
> So I just gave it a try using poky distro which fails with following error:
> 
> $ bitbake -c populate_sdk core-image-base
> <snip>
> Error:
>  Problem: package
> packagegroup-cross-canadian-qemuarm64-1.0-r0.x86_64_nativesdk requires
> gdb-cross-canadian-aarch64, but none of the providers can be installed
>   - conflicting requests
>   - nothing provides libpython2.7.so.1.0()(64bit) needed by
> gdb-cross-canadian-aarch64-8.3.0.20190709+git-r0.x86_64_nativesdk

^^^ looks like 8.3 toolchain has some python2-linked binaries, which would 
require dependency on meta-python2. Let me check which binary is that, maybe 
we can just drop it. Or we can just skip this check with INSANE_SKIP...

BTW, I don't see this issue with 9.2 toolchain.

On Mon, 15 Jun 2020 at 23:50, Denys Dmytriyenko <denis@denix.org> wrote:
>
> On Mon, Jun 15, 2020 at 06:15:17PM +0530, Sumit Garg wrote:
> > On Mon, 15 Jun 2020 at 13:37, Denys Dmytriyenko <denis@denix.org> wrote:
> > >
> > > From: Denys Dmytriyenko <denys@ti.com>
> > >
> > > Allows re-use of prebuilt ARM toolchain binaries for SDK generation.
> > >
> > > This code is upstreamed from meta-arago layer.
> > >
> > > Signed-off-by: Denys Dmytriyenko <denys@ti.com>
> > > ---
> > >  .../conf/distro/include/tcmode-external-arm.inc    |   4 +
> > >  .../external-arm-sdk-toolchain.bb                  | 136 +++++++++++++++++++++
> > >  2 files changed, 140 insertions(+)
> > >  create mode 100644 meta-arm-toolchain/recipes-devtools/external-arm-toolchain/external-arm-sdk-toolchain.bb
> > >
> >
> > Thanks for pushing this recipe upstream. It's good to have the tools
> > binaries packaged in SDK from pre-built toolchain rather than building
> > from source.
> >
> > So I just gave it a try using poky distro which fails with following error:
> >
> > $ bitbake -c populate_sdk core-image-base
> > <snip>
> > Error:
> >  Problem: package
> > packagegroup-cross-canadian-qemuarm64-1.0-r0.x86_64_nativesdk requires
> > gdb-cross-canadian-aarch64, but none of the providers can be installed
> >   - conflicting requests
> >   - nothing provides libpython2.7.so.1.0()(64bit) needed by
> > gdb-cross-canadian-aarch64-8.3.0.20190709+git-r0.x86_64_nativesdk
>
> ^^^ looks like 8.3 toolchain has some python2-linked binaries, which would
> require dependency on meta-python2.

Here 8.3.0 is gdb version rather than toolchain version. See below:

$ ~/tc_install/gcc-arm-9.2-2019.12-x86_64-aarch64-none-linux-gnu/bin/aarch64-none-linux-gnu-gdb
--version
GNU gdb (GNU Toolchain for the A-profile Architecture 9.2-2019.12
(arm-9.10)) 8.3.0.20190709-git
Copyright (C) 2019 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

> Let me check which binary is that, maybe
> we can just drop it. Or we can just skip this check with INSANE_SKIP...
>
> BTW, I don't see this issue with 9.2 toolchain.
>

Strangely, I see this issue with 9.2 toolchain for aarch64.

-Sumit

> --
> Denys
>
>
> > (try to add '--skip-broken' to skip uninstallable packages)
> > <snip>
> >
> > Is there something that I missed while testing?
> >
> > -Sumit
> >
> > > diff --git a/meta-arm-toolchain/conf/distro/include/tcmode-external-arm.inc b/meta-arm-toolchain/conf/distro/include/tcmode-external-arm.inc
> > > index 9171380..08b87ef 100644
> > > --- a/meta-arm-toolchain/conf/distro/include/tcmode-external-arm.inc
> > > +++ b/meta-arm-toolchain/conf/distro/include/tcmode-external-arm.inc
> > > @@ -45,6 +45,10 @@ PREFERRED_PROVIDER_glibc-mtrace = "external-arm-toolchain"
> > >  PREFERRED_PROVIDER_libc-mtrace = "external-arm-toolchain"
> > >  PREFERRED_PROVIDER_virtual/linux-libc-headers = "external-arm-toolchain"
> > >
> > > +PREFERRED_PROVIDER_gcc-cross-canadian-${TRANSLATED_TARGET_ARCH} ?= "external-arm-sdk-toolchain-${TRANSLATED_TARGET_ARCH}"
> > > +PREFERRED_PROVIDER_binutils-cross-canadian-${TRANSLATED_TARGET_ARCH} ?= "external-arm-sdk-toolchain-${TRANSLATED_TARGET_ARCH}"
> > > +PREFERRED_PROVIDER_gdb-cross-canadian-${TRANSLATED_TARGET_ARCH} ?= "external-arm-sdk-toolchain-${TRANSLATED_TARGET_ARCH}"
> > > +
> > >  TOOLCHAIN_OPTIONS = " --sysroot=${STAGING_DIR_HOST}"
> > >
> > >  DISTRO_FEATURES_LIBC = "ipv4 ipv6 libc-backtrace libc-big-macros libc-bsd libc-cxx-tests libc-catgets libc-crypt \
> > > diff --git a/meta-arm-toolchain/recipes-devtools/external-arm-toolchain/external-arm-sdk-toolchain.bb b/meta-arm-toolchain/recipes-devtools/external-arm-toolchain/external-arm-sdk-toolchain.bb
> > > new file mode 100644
> > > index 0000000..88fd20e
> > > --- /dev/null
> > > +++ b/meta-arm-toolchain/recipes-devtools/external-arm-toolchain/external-arm-sdk-toolchain.bb
> > > @@ -0,0 +1,136 @@
> > > +inherit cross-canadian
> > > +
> > > +PN = "external-arm-sdk-toolchain-${TARGET_ARCH}"
> > > +BPN = "external-arm-sdk-toolchain"
> > > +
> > > +INHIBIT_PACKAGE_DEBUG_SPLIT = "1"
> > > +INHIBIT_PACKAGE_STRIP = "1"
> > > +INHIBIT_SYSROOT_STRIP = "1"
> > > +INHIBIT_DEFAULT_DEPS = "1"
> > > +EXCLUDE_FROM_SHLIBS = "1"
> > > +
> > > +EAT_LICENSE ??= ""
> > > +
> > > +LICENSE = "${EAT_LICENSE}"
> > > +LIC_FILES_CHKSUM = "file://${COMMON_LICENSE_DIR}/MIT;md5=0835ade698e0bcf8506ecda2f7b4f302"
> > > +
> > > +INSANE_SKIP_gcc-cross-canadian-${TRANSLATED_TARGET_ARCH} = "dev-so staticdev file-rdeps libdir"
> > > +INSANE_SKIP_gdb-cross-canadian-${TRANSLATED_TARGET_ARCH} = "dev-so file-rdeps"
> > > +INSANE_SKIP_binutils-cross-canadian-${TRANSLATED_TARGET_ARCH} = "dev-so file-rdeps"
> > > +
> > > +PROVIDES = "\
> > > +       gcc-cross-canadian-${TRANSLATED_TARGET_ARCH} \
> > > +       gdb-cross-canadian-${TRANSLATED_TARGET_ARCH} \
> > > +       binutils-cross-canadian-${TRANSLATED_TARGET_ARCH} \
> > > +"
> > > +
> > > +PACKAGES = "\
> > > +       gcc-cross-canadian-${TRANSLATED_TARGET_ARCH} \
> > > +       gdb-cross-canadian-${TRANSLATED_TARGET_ARCH} \
> > > +       binutils-cross-canadian-${TRANSLATED_TARGET_ARCH} \
> > > +"
> > > +
> > > +# Adjust defaults in line with external toolchain
> > > +bindir = "${exec_prefix}/bin"
> > > +libdir = "${exec_prefix}/lib"
> > > +libexecdir = "${exec_prefix}/libexec"
> > > +datadir = "${exec_prefix}/share"
> > > +gcclibdir = "${libdir}/gcc"
> > > +
> > > +FILES_gcc-cross-canadian-${TRANSLATED_TARGET_ARCH} = "\
> > > +       ${prefix}/${EAT_TARGET_SYS}/lib/libstdc++.* \
> > > +       ${prefix}/${EAT_TARGET_SYS}/lib/libgcc_s.* \
> > > +       ${prefix}/${EAT_TARGET_SYS}/lib/libsupc++.* \
> > > +       ${gcclibdir}/${EAT_TARGET_SYS}/${EAT_VER_GCC}/* \
> > > +       ${bindir}/${TARGET_PREFIX}gcov \
> > > +       ${bindir}/${TARGET_PREFIX}gcc* \
> > > +       ${bindir}/${TARGET_PREFIX}g++ \
> > > +       ${bindir}/${TARGET_PREFIX}cpp \
> > > +       ${libexecdir}/* \
> > > +"
> > > +
> > > +FILES_gdb-cross-canadian-${TRANSLATED_TARGET_ARCH} = "\
> > > +       ${bindir}/${TARGET_PREFIX}gdb* \
> > > +       ${datadir}/gdb/* \
> > > +"
> > > +
> > > +FILES_binutils-cross-canadian-${TRANSLATED_TARGET_ARCH} = "\
> > > +       ${prefix}/${EAT_TARGET_SYS}/bin/ld* \
> > > +       ${prefix}/${EAT_TARGET_SYS}/bin/objcopy \
> > > +       ${prefix}/${EAT_TARGET_SYS}/bin/strip \
> > > +       ${prefix}/${EAT_TARGET_SYS}/bin/nm \
> > > +       ${prefix}/${EAT_TARGET_SYS}/bin/ranlib \
> > > +       ${prefix}/${EAT_TARGET_SYS}/bin/as \
> > > +       ${prefix}/${EAT_TARGET_SYS}/bin/ar \
> > > +       ${prefix}/${EAT_TARGET_SYS}/bin/objdump \
> > > +       ${prefix}/${EAT_TARGET_SYS}/lib/ldscripts/* \
> > > +       ${bindir}/${TARGET_PREFIX}ld* \
> > > +       ${bindir}/${TARGET_PREFIX}addr2line \
> > > +       ${bindir}/${TARGET_PREFIX}objcopy \
> > > +       ${bindir}/${TARGET_PREFIX}readelf \
> > > +       ${bindir}/${TARGET_PREFIX}strip \
> > > +       ${bindir}/${TARGET_PREFIX}nm \
> > > +       ${bindir}/${TARGET_PREFIX}ranlib \
> > > +       ${bindir}/${TARGET_PREFIX}gprof \
> > > +       ${bindir}/${TARGET_PREFIX}as \
> > > +       ${bindir}/${TARGET_PREFIX}c++filt \
> > > +       ${bindir}/${TARGET_PREFIX}ar \
> > > +       ${bindir}/${TARGET_PREFIX}strings \
> > > +       ${bindir}/${TARGET_PREFIX}objdump \
> > > +       ${bindir}/${TARGET_PREFIX}size \
> > > +"
> > > +
> > > +DESCRIPTION_gcc-cross-canadian-${TRANSLATED_TARGET_ARCH} = "The GNU cc and gcc C compilers"
> > > +DESCRIPTION_gdb-cross-canadian-${TRANSLATED_TARGET_ARCH} = "gdb - GNU debugger"
> > > +DESCRIPTION_binutils-cross-canadian-${TRANSLATED_TARGET_ARCH} = "A GNU collection of binary utilities"
> > > +
> > > +LICENSE_gcc-cross-canadian-${TRANSLATED_TARGET_ARCH} = "${EAT_GCC_LICENSE}"
> > > +LICENSE_gdb-cross-canadian-${TRANSLATED_TARGET_ARCH} = "${EAT_GDB_LICENSE}"
> > > +LICENSE_binutils-cross-canadian-${TRANSLATED_TARGET_ARCH} = "${EAT_BFD_LICENSE}"
> > > +
> > > +PKGV_gcc-cross-canadian-${TRANSLATED_TARGET_ARCH} = "${EAT_VER_GCC}"
> > > +PKGV_gdb-cross-canadian-${TRANSLATED_TARGET_ARCH} = "${EAT_VER_GDB}"
> > > +PKGV_binutils-cross-canadian-${TRANSLATED_TARGET_ARCH} = "${EAT_VER_BFD}"
> > > +
> > > +do_install() {
> > > +       install -d ${D}${prefix}/${EAT_TARGET_SYS}/bin
> > > +       install -d ${D}${prefix}/${EAT_TARGET_SYS}/lib
> > > +       install -d ${D}${bindir}
> > > +       install -d ${D}${libdir}
> > > +       install -d ${D}${prefix}/${EAT_TARGET_SYS}/lib/ldscripts
> > > +       install -d ${D}${libexecdir}
> > > +       install -d ${D}${datadir}/gdb
> > > +       install -d ${D}${gcclibdir}/${EAT_TARGET_SYS}/${EAT_VER_GCC}/include
> > > +
> > > +       CP_ARGS="-Prf --preserve=mode,timestamps --no-preserve=ownership"
> > > +
> > > +       # gcc
> > > +       for i in libstdc++.* libgcc_s.* libsupc++.*; do
> > > +               cp ${CP_ARGS} ${EXTERNAL_TOOLCHAIN}/${EAT_TARGET_SYS}/${EAT_LIBDIR}/$i ${D}${prefix}/${EAT_TARGET_SYS}/lib
> > > +       done
> > > +       cp ${CP_ARGS} ${EXTERNAL_TOOLCHAIN}/lib/gcc/${EAT_TARGET_SYS}/${EAT_VER_GCC}/* ${D}${gcclibdir}/${EAT_TARGET_SYS}/${EAT_VER_GCC}
> > > +       for i in gcov gcc* g++ cpp; do
> > > +               cp ${CP_ARGS} ${EXTERNAL_TOOLCHAIN}/bin/${TARGET_PREFIX}$i ${D}${bindir}
> > > +       done
> > > +       cp ${CP_ARGS} ${EXTERNAL_TOOLCHAIN}/libexec/* ${D}${libexecdir}
> > > +
> > > +       # gdb
> > > +       cp ${CP_ARGS} ${EXTERNAL_TOOLCHAIN}/bin/${TARGET_PREFIX}gdb* ${D}${bindir}
> > > +       cp ${CP_ARGS} ${EXTERNAL_TOOLCHAIN}/share/gdb/* ${D}${datadir}/gdb/
> > > +
> > > +       # binutils
> > > +       for i in ld* objcopy strip nm ranlib as ar objdump; do
> > > +               cp ${CP_ARGS} ${EXTERNAL_TOOLCHAIN}/${EAT_TARGET_SYS}/bin/$i ${D}${prefix}/${EAT_TARGET_SYS}/bin
> > > +       done
> > > +       cp ${CP_ARGS} ${EXTERNAL_TOOLCHAIN}/${EAT_TARGET_SYS}/lib/ldscripts/* ${D}${prefix}/${EAT_TARGET_SYS}/lib/ldscripts
> > > +       for i in ld* addr2line objcopy readelf strip nm ranlib gprof as c++filt ar strings objdump size; do
> > > +               cp ${CP_ARGS} ${EXTERNAL_TOOLCHAIN}/bin/${TARGET_PREFIX}$i ${D}${bindir}
> > > +       done
> > > +}
> > > +
> > > +python () {
> > > +    if not d.getVar("EAT_VER_MAIN", False):
> > > +        raise bb.parse.SkipPackage("External ARM toolchain not configured (EAT_VER_MAIN not set).")
> > > +    if d.getVar('TCLIBC', True) != "glibc":
> > > +        raise bb.parse.SkipPackage("incompatible with %s" % d.getVar('TCLIBC', True))
> > > +}
> > > --
> > > 2.7.4
> > >
> > > 
> >
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On Tue, Jun 16, 2020 at 11:26:17AM +0530, Sumit Garg wrote:
> On Mon, 15 Jun 2020 at 23:50, Denys Dmytriyenko <denis@denix.org> wrote:
> >
> > On Mon, Jun 15, 2020 at 06:15:17PM +0530, Sumit Garg wrote:
> > > On Mon, 15 Jun 2020 at 13:37, Denys Dmytriyenko <denis@denix.org> wrote:
> > > >
> > > > From: Denys Dmytriyenko <denys@ti.com>
> > > >
> > > > Allows re-use of prebuilt ARM toolchain binaries for SDK generation.
> > > >
> > > > This code is upstreamed from meta-arago layer.
> > > >
> > > > Signed-off-by: Denys Dmytriyenko <denys@ti.com>
> > > > ---
> > > >  .../conf/distro/include/tcmode-external-arm.inc    |   4 +
> > > >  .../external-arm-sdk-toolchain.bb                  | 136 +++++++++++++++++++++
> > > >  2 files changed, 140 insertions(+)
> > > >  create mode 100644 meta-arm-toolchain/recipes-devtools/external-arm-toolchain/external-arm-sdk-toolchain.bb
> > > >
> > >
> > > Thanks for pushing this recipe upstream. It's good to have the tools
> > > binaries packaged in SDK from pre-built toolchain rather than building
> > > from source.
> > >
> > > So I just gave it a try using poky distro which fails with following error:
> > >
> > > $ bitbake -c populate_sdk core-image-base
> > > <snip>
> > > Error:
> > >  Problem: package
> > > packagegroup-cross-canadian-qemuarm64-1.0-r0.x86_64_nativesdk requires
> > > gdb-cross-canadian-aarch64, but none of the providers can be installed
> > >   - conflicting requests
> > >   - nothing provides libpython2.7.so.1.0()(64bit) needed by
> > > gdb-cross-canadian-aarch64-8.3.0.20190709+git-r0.x86_64_nativesdk
> >
> > ^^^ looks like 8.3 toolchain has some python2-linked binaries, which would
> > require dependency on meta-python2.
> 
> Here 8.3.0 is gdb version rather than toolchain version. See below:

Ah, yes, I see - it's gdb binary itself is linked against libpython2.7.so.1.0

The thing is that the recipe already sets "file-rdeps" INSAKE_SKIP flag for 
gdb-cross-canadian.

In order to reproduce this I had to switch from nodistro/ipk to poky/rpm. The 
original error was cut a bit short, so I wasn't sure where it was coming from. 
Now I see that it is coming from DNF when SDK is being assembled from rpms. 
Looks like DNF has its own check and doesn't honor INSANE_SKIP, obviously. And 
opkg is more forgiving in this regard.

BTW, switching nodistro from ipk to rpm also results in this error. I wonder 
if there's a way to tell DNF to skip this check...