Hi Richard and Joshua,

When using hash equivalency, since commits

https://git.openembedded.org/openembedded-core/commit/?id=d6c7b9f4f0e
https://git.openembedded.org/openembedded-core/commit/?id=1cf62882bba

scrambling a header in one of the gcc patches causes all target packages
to rebuild. This is because the depsig.do_populate_sysroot in "libgcc"
changes:

> [jkroon@fedora work]$ diff -u 
> i686-oe-linux/libgcc/11.3.0-r0/temp/depsig.do_populate_sysroot.1*             
>                                                                               
>                                                                               
>                                                      
> --- i686-oe-linux/libgcc/11.3.0-r0/temp/depsig.do_populate_sysroot.1589812    
>   2022-04-27 10:14:22.403251775 +0200                                         
>                                                                               
>                                                                               
>      
> +++ i686-oe-linux/libgcc/11.3.0-r0/temp/depsig.do_populate_sysroot.1674014    
>   2022-04-27 10:26:45.329365448 +0200                                         
>                                                                               
>                                                                               
>      
> @@ -1,7 +1,7 @@                                                               
>                                                                               
>                                                                               
>                                                                               
>      
>  OEOuthashBasic                                                               
>                                                                               
>                                                                               
>                                                                               
>      
>  12                                                                           
>                                                                               
>                                                                               
>                                                                               
>      
>  glibc: 8feab297dd38b103daa4f26eeabb5690a74b8b5700d16e4eca7b56e6fd667a5e      
>                                                                               
>                                                                               
>                                                                               
>      
> -libgcc: dfd38409a4cc5320b781edc14de2af8321180c3f194a58b798870ad7ff6a9226     
>                                                                               
>                                                                               
>                                                                               
>      
> +libgcc: 195f6a155dac8e450e72a7432ab91959a8e095e057d5b79e3adba41721dc7ea5     
>                                                                               
>                                                                               
>                                                                               
>      
>  linux-libc-headers: 
> 12a5aaf8aec9554ac3c778cdc6c65df4db52fc573e84b7110572d459a15c9d6a              
>                                                                               
>                                                                               
>                                                               
>  SSTATE_PKGSPEC=sstate:libgcc:i686-oe-linux:11.3.0:r0:i686:8:                 
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>                                                                               
>                                                                               
>      
>  task=populate_sysroot

Is it the case that it is the dependent task hashes that are added
above, and that the checksum of patches are included in the those task
hashes ?

In order to solve the original problem that those patches were fixing,
would it not be possible to instead include the *outhashes* of the
dependent recipes ?

Jacob
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