[Bug bootstrap/38607] AIX error messages about TOC during build

["michael dot haubenwallner at salomon dot at" <gcc-bugzilla at gcc dot gnu dot org>]

------- Comment #14 from michael dot haubenwallner at salomon dot at  2010-06-18 13:44 -------
(In reply to comment #13)
>   #include <string>
>   #include <map>
>   void foo()
>   {
>     std::map<std::string, std::string> bar;
>   }

Simply compiling this source code into an rtl-enabled shared library leads to
that linker warning, with both vanilla gcc-4.5.0 and gcc-4.4.4, configured to
use native as and ld each, on AIX5.3 TL8.

$ g++ -shared -Wl,-G -o libshare.so test.cpp
ld: 0711-768 WARNING: Object /tmp//ccIju3gQ.o, section 1, function *SNIP*:
    The branch at address 0x618 is not followed by a recognized no-op
    or TOC-reload instruction. The unrecognized instruction is 0x801F007C.

The warning isn't shown with the '-bsymbolic' linker flag, as this one
relocation is finally resolved locally and the subsequent 'nop' isn't needed.
But doing symbolic linking doesn't fit as workaround.
Thank you!


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38607