Re: Failure with PR16566 new test on Mingw hosts

[Nick Clifton <nickc@redhat.com>]

Hi Clément,

> I've a weird failure on the new test introduced by 496917ce46 and its -print-map-locals. On mingw, when cross-linking to any ELF targets,

So this happens when the *host* is a mingw system, rather than, say,
a Linux system.  That is strange.  Why would the host matter ?

> adding the option results in a crash when writing the output executable:

> It seems that a call to fwrite is failing with EPIPE, when writing the strtab.

> I don't know why but this seems to be triggered by the new call to bfd_canonicalize_symtab introduced when we are logging the local symbols [1]. Any idea about what's
> going on ?

No. :-(  It is definitely weird.

Do you know if the problem is target specific, ie only happening
for certain ELF targets ?

Maybe this is a memory problem.  Possibly the code is using freed
memory, or something like that.  And on Linux hosts the freed memory
is untouched but on mingw hosts the memory is recycled and used for
something else ?  If you run the command under a program like valgrind
to you get any more information ?  Or maybe compiling with address
sanitization enabled ?

Cheers
   Nick