Switching to gcc-10 makes seabios-hppa unbuildable. It fails at the final linking step with a lot of missing references to memcpy & memcmp all over the places.
The notable difference between gcc-10 and previous gcc is that ccode32flat.o does _not_ have the text for these two functions but have two .isra.0: $ hppa-linux-gnu-nm ccode32flat.o | grep mem[sc] 000003e0 t memcmp U memcpy 00002f38 t memcpy.isra.0 U memset 00003a84 t memset.isra.0 while previous version of the compiler did have them: $ hppa-linux-gnu-nm ccode32flat.o | grep mem[sc] 000002fc t memcmp 0000370c t memcpy 0000036c t memset After adding -fno-ipa-sra to the gcc flags, the firmware is built successfully. I don't know what to make out of this. Previous versions of gcc apparently accepts -fno-ipa-sra too, for quite some time. So maybe add this to the flags unconditionally? Thanks, /mjt