On Thu, Sep 24, 2020 at 08:34:48PM +0200, Jan Kratochvil wrote:
> > The tool is not easily maintained,
> 
> I did not mention it there but it is true there are some longterm unfixed
> bugs in DWZ so that it gives up on optimization of many builds:
>       error: Allocatable section after non-allocatable ones
>         https://sourceware.org/bugzilla/show_bug.cgi?id=24251#c10

That isn't a longterm unfixed bug. It is is a comment by you from a
couple of days ago that you could still reproduce an already fixed
bug. So we reopened the bug and asked you for a reproducer. Which you
didn't provide. When we then tried to replicate the issue ourselves we
found that dwz correctly seems to detect an issue with the golang
toolchain.

>       error: Couldn't find DIE referenced by DW_AT_abstract_origin
>       (maybe DWZ error or maybe compiler error: Unknown DWARF DW_OP_255)

We cannot fix bugs if you don't report them. Please file bugs for the
above issue (including how to reproduce them) and we'll take a look.

Cheers,

Mark
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