Re: [PATCH] gcc: upgrade 11.2 -> current 12 snapshot

["Bernhard Rosenkränzer" <bernhard.rosenkraenzer.ext@huawei.com>]

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On Thu, Apr 7, 2022 at 02:32 PM, Richard Purdie wrote:

> 
> On Thu, 2022-04-07 at 14:26 +0200, Bernhard Rosenkränzer via
> lists.openembedded.org wrote:
> 
>> rename from meta/recipes-devtools/gcc/gcc-cross-canadian_11.2.bb
>> rename to meta/recipes-devtools/gcc/gcc-cross-canadian_12.0.bb
>> diff --git a/meta/recipes-devtools/gcc/gcc-cross.inc
>> b/meta/recipes-devtools/gcc/gcc-cross.inc
>> index 3ffa1f0c46..0e8119384b 100644
>> --- a/meta/recipes-devtools/gcc/gcc-cross.inc
>> +++ b/meta/recipes-devtools/gcc/gcc-cross.inc
>> @@ -47,6 +47,15 @@ ARCH_FLAGS_FOR_TARGET +=
>> "-isystem${STAGING_DIR_TARGET}${target_includedir}"
>> do_configure:prepend () {
>> install -d ${RECIPE_SYSROOT}${target_includedir}
>> touch ${RECIPE_SYSROOT}${target_includedir}/limits.h
>> +
>> + if ! echo ${@d.getVar("TARGET_OS")} | grep -qi linux; then
>> + # Building Zephyr with DWARF-5 is problematic because
>> + # its kernel tests use pyelftools, which has incomplete
>> + # DWARF-5 support (even after applying preliminary
>> + # support patches). Use DWARF-4 on Zephyr and FreeRTOS
>> + # for the time being.
>> + sed -i -e 's,Var(dwarf_version) Init(5),Var(dwarf_version) Init(4),'
>> ${S}/gcc/common.opt
>> + fi
>> }
>> 
>> do_compile () {
> 
> Unfortunately you can't do that. The gcc-cross is shared amongst all
> targets on
> a given architecture. This will "kind of work" in that other sstate code
> will
> clean it up and rebuild gcc but it isn't as designed and can't merge like
> that
> I'm afraid.

True, didn't think of that. I've backed out this part and sent a new patch. Will address the zephyr problem with an added -gdwarf-4 flag in zephyr configs.

ttyl
bero

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