[Bug go/81926] go/parse.o differs between stage2 and stage3 for gcc 7.2.0

[ebotcazou at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81926

Eric Botcazou <ebotcazou at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2017-08-22
                 CC|                            |ebotcazou at gcc dot gnu.org,
                   |                            |ro at gcc dot gnu.org
     Ever confirmed|0                           |1

--- Comment #1 from Eric Botcazou <ebotcazou at gcc dot gnu.org> ---
> The compiler to be used for the initial stage of bootstrap is gcc 6.4.0 thus
> :
> 
> d$ /usr/local/gcc6/bin/gcc --version 
> gcc (genunix Wed Jul 26 02:41:24 GMT 2017) 6.4.0
> Copyright (C) 2017 Free Software Foundation, Inc.
> This is free software; see the source for copying conditions.  There is NO
> warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
> 
> That had reasonable test results previously : 
>     https://gcc.gnu.org/ml/gcc-testresults/2017-07/msg02881.html

But Go wasn't enabled for it, was it?

> There seems to be only an 8 byte size difference : 
> 
> d$ ls -lo ./stage2-gcc/go/parse.o ./stage3-gcc/go/parse.o
> -rw-r--r--   1 dclarke  3904088 Aug 22 04:00 ./stage2-gcc/go/parse.o
> -rw-r--r--   1 dclarke  3904080 Aug 22 04:57 ./stage3-gcc/go/parse.o
> 
> Also the various symbols in these object files are identical but the
> location of data inside the ELF files is slightly different : 

Can you find out (with objdump for example) which section differs in size?

Rainer, do you test Go in this configuration (system as + ld)?