Re: [OE-core] [v4] [RFC] Merge meta-rust to oe-core

["Vinay Kumar" <vinay.m.engg@gmail.com>]

Hi Randy,

>> Vinay or I will look into glibc/qemuppc64
>> if no one else is working on that.

The failure is due to the below error in libstd-rs package build.
"error: unrecognized arch "powerpc64le" in target specification"

The reason for this is "arch": "powerpc64le" from the below target
specific file.

cat $b2/tmp/work/ppc64p9le-poky-linux/libstd-rs/1.54.0-r0/recipe-sysroot-native/usr/lib/rustlib/powerpc64le-poky-linux.json
{
    "llvm-target": "powerpc64le-unknown-linux-gnu",
    "data-layout": "e-m:e-i64:64-n32:64-v256:256:256-v512:512:512",
    "max-atomic-width": 64,
    "target-pointer-width": "64",
    "target-c-int-width": "64",
    "target-endian": "little",
    "arch": "powerpc64le",
    "os": "linux",
    "env": "gnu",
    "vendor": "unknown",
    "target-family": "unix",
    "linker": "powerpc64le-poky-linux-gcc",
    "ar": "powerpc64le-poky-linux-ar",
    "cpu": "generic",
    "dynamic-linking": true,
    "executables": true,
    "linker-is-gnu": true,
    "linker-flavor": "gcc",
    "has-rpath": true,
    "has-elf-tls": true,
    "position-independent-executables": true,
    "panic-strategy": "unwind"
}

So the "arch" should be "powerpc64" in case of "powerpc64le" fixes the
librstd-rs build failure.

With the above fix,

$cat  rust-hello-world-buildall.log
BUILDALL-QEMU LOG FOR rust-hello-world
START TIME: 2021-08-13_03:11:23
HOSTNAME: ala-lpggp3
HOST OS: Ubuntu 18.04.3 LTS
HOST KERNEL: 5.4.0-80-generic
===============
BUILD RESULTS:
[glibc]
PASS: qemuriscv32
PASS: qemuarmv5
PASS: qemumips
PASS: qemux86-64
PASS: qemuarm64
PASS: qemumips64
PASS: qemuarm
PASS: qemuppc
PASS: qemuriscv64
PASS: qemuppc64
PASS: qemux86
[musl]
FAIL: qemuriscv32
FAIL: qemuarmv5
FAIL: qemumips
FAIL: qemux86-64
FAIL: qemuarm64
FAIL: qemumips64
FAIL: qemuarm
FAIL: qemuppc
FAIL: qemuriscv64
FAIL: qemuppc64
FAIL: qemux86
===============
PASSED: 11
FAILED: 11

Regards,
Vinay

On Fri, Aug 13, 2021 at 8:50 PM Vinay Kumar <vinay.m.engg@gmail.com> wrote:
>
> rust-common.inc: Fix build failure with qemuppc64.
>
> The glibc build of "rust-hello-world" throws error in libstd-rs package.
> error: unrecognized arch "powerpc64le" in target specification
>
> The same got fixed by changing the arch to "powerpc64".
>
> Signed-off-by: Vinay Kumar <vinay.m.engg@gmail.com>
> ---
>  meta/recipes-devtools/rust/rust-common.inc | 2 ++
>  1 file changed, 2 insertions(+)
>
> diff --git a/meta/recipes-devtools/rust/rust-common.inc b/meta/recipes-devtools/rust/rust-common.inc
> index 350517c723..f574152815 100644
> --- a/meta/recipes-devtools/rust/rust-common.inc
> +++ b/meta/recipes-devtools/rust/rust-common.inc
> @@ -248,6 +248,8 @@ def arch_to_rust_target_arch(arch):
>          return "mips64"
>      elif arch == "armv7":
>          return "arm"
> +    elif arch == "powerpc64le":
> +        return "powerpc64"
>      else:
>          return arch
>
> --
> 2.31.1
>