[Bug go/68496] [libgo] reflect test fails on Linux x86-64

[ian at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68496

--- Comment #3 from ian at gcc dot gnu.org <ian at gcc dot gnu.org> ---
Author: ian
Date: Mon Nov 23 21:17:45 2015
New Revision: 230776

URL: https://gcc.gnu.org/viewcvs?rev=230776&root=gcc&view=rev
Log:
        PR go/68496
    reflect: Allocate space for FFI functions returning a zero-sized type.

    The libffi library does not understand zero-sized types.  We represent
    them as a struct with a single field of type void.  If such a type is
    returned from a function, libffi will copy 1 byte of data.  Allocate
    space for that byte, although we won't use it.

    Fixes https://gcc.gnu.org/PR68496.

    Reviewed-on: https://go-review.googlesource.com/17175

Modified:
    trunk/gcc/go/gofrontend/MERGE
    trunk/libgo/runtime/go-reflect-call.c