[OE-core] [PATCH] scripts: Use fixed temporary file instead of pipe for here-doc

[He Zhe]

On 2018/11/21 18:07, Richard Purdie wrote:
> On Wed, 2018-11-21 at 17:39 +0800, zhe.he at windriver.com wrote:
>> From: He Zhe <zhe.he at windriver.com>
>>
>> A workaround for possible "*** Compiler lacks asm-goto support..
>> Stop."
>> linux-libc-headers is built by gcc on build machine, which could not
>> contain the
>> fix.
>>
>> Signed-off-by: He Zhe <zhe.he at windriver.com>
>> ---
>>  ...-fixed-temporary-file-instead-of-pipe-for.patch | 60
>> ++++++++++++++++++++++
>>  .../linux-libc-headers/linux-libc-headers_4.18.bb  |  4 ++
>>  2 files changed, 64 insertions(+)
>>  create mode 100644 meta/recipes-kernel/linux-libc-headers/linux-
>> libc-headers/0001-scripts-Use-fixed-temporary-file-instead-of-pipe-
>> for.patch
> How old is an "old gcc"?

I put the full explanation in the commit log of the patch inside.

The fix below for the bug has not been released from upstream. Since there has
not been gcc-cross when building linux-libc-headers, we have to use build
machine gcc which could not contain the fix for the moment. To work around the
error, we create a fixed temporary file to contain the program being tested.

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;a=commit;h=
2a50366ded329bfb39d387253450c9d5302c3503

>
> If this isn't going upstream, I'm not sure we want to take and carry
> this either. Unless this is a gcc people would commonly run into I'm
> tempted not to take this.

This is a gcc issue, but the fix would not quickly goto versions being used
by users. So this patch is used as a workaround to prevent the failure.

To be specific, we encountered this in docker where the /tmp could be
rarely used that very low number inode may be allocated and triggers
the error.

>
> Also, your patch subject is wrong as this does not change our scripts
> directory.

If this is OK, I'll send v2 to change the subject.

Thanks,
Zhe

>
> Cheers,
>
> Richard
>
>
>
>