On Fri, Apr 28, 2023 at 4:18 AM Martin Jansa <[email protected]> wrote:
>
> Do you already have a follow-up change for meta-clang which seems to be 
> broken by this change?
>
> clang-16: error: unknown argument: '-fcanon-prefix-map'
>
yes
https://github.com/kraj/meta-clang/pull/782

> On Fri, Apr 28, 2023 at 5:20 AM Khem Raj <[email protected]> wrote:
>>
>> This should help canonicalize the relative paths and symlinks
>> during cross compile, -fcanon-prefix-map is newly added in gcc-13+ [1]
>>
>> [1] https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108464#c8
>> Signed-off-by: Khem Raj <[email protected]>
>> ---
>>  meta/conf/bitbake.conf | 3 ++-
>>  1 file changed, 2 insertions(+), 1 deletion(-)
>>
>> diff --git a/meta/conf/bitbake.conf b/meta/conf/bitbake.conf
>> index d94ffe1df9..453bef37a9 100644
>> --- a/meta/conf/bitbake.conf
>> +++ b/meta/conf/bitbake.conf
>> @@ -644,7 +644,8 @@ EXTRA_OEMAKE:prepend:task-install = 
>> "${PARALLEL_MAKEINST} "
>>  # Optimization flags.
>>  ##################################################################
>>  # Beware: applied last to first
>> -DEBUG_PREFIX_MAP ?= 
>> "-fmacro-prefix-map=${S}=/usr/src/debug/${PN}/${EXTENDPE}${PV}-${PR} \
>> +DEBUG_PREFIX_MAP ?= "-fcanon-prefix-map \
>> + -fmacro-prefix-map=${S}=/usr/src/debug/${PN}/${EXTENDPE}${PV}-${PR} \
>>   -fdebug-prefix-map=${S}=/usr/src/debug/${PN}/${EXTENDPE}${PV}-${PR} \
>>   -fmacro-prefix-map=${B}=/usr/src/debug/${PN}/${EXTENDPE}${PV}-${PR} \
>>   -fdebug-prefix-map=${B}=/usr/src/debug/${PN}/${EXTENDPE}${PV}-${PR} \
>> --
>> 2.40.1
>>
>>
>>
>>
>
> 
>
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