Problem with weak_alias and strong_alias in gcc-4.1.0 with MIPS...

[Daniel Kegel]

"Steven J. Hill" <sjhill@realitydiluted.com> wrote:
> I have a working MIPS cross toolchain with:
>    binutils-2.15
>    gcc-3.4.2
>    glibc-2.3.4
>    linux-2.6.12
> and then decided to work with gcc-4.1.0 out of the cvs head. I am now
> getting build problems with glibc-2.3.4 with the first major snafu
> being:
> ../sysdeps/ieee754/dbl-64/s_isinf.c:29: error: 'isinf' aliased to undefined symbol '__isinf'
> ../sysdeps/ieee754/dbl-64/s_isinf.c:31: error: '__isinfl' aliased to undefined symbol '__isinf'
> ../sysdeps/ieee754/dbl-64/s_isinf.c:32: error: 'isinfl' aliased to undefined symbol '__isinf'
> 
> I am attempting to try and figure out what changed so drastically to
> cause this. I also looked in GCC and glibc Bugzilla databases, but did
> not find anything addressing this problem. Has anyone seen this
> behavior?

Yes.  As Giovanni pointed out, the move from gcc-3.4 to gcc-4.0
requires some changes.  I have backported the needed changes from cvs
to glibc-2.3.4, more or less, and will release the patches
with crosstool-0.32.  In the meantime, the particular problem
you're facing might be fixed by this patch from cvs:

Revision 1.71, Thu Mar 17 21:06:27 2005 UTC (3 weeks, 5 days ago) by roland
Branch: MAIN
CVS Tags: fedora-glibc-20050405T2114, fedora-glibc-20050401T1444, fedora-glibc-20050324T0715, fedora-glibc-20050319T1907, HEAD
Changes since 1.70: +11 -66 lines
Diff to previous 1.70 (colored)

2005-03-16  Richard Henderson  <rth@redhat.com>

         * include/libc-symbols.h (__hidden_proto): Remove bogus declaration
         of internal.
         (__hidden_def1, __hidden_dot_def1): Remove.
         (__hidden_def2, __hidden_def3): Remove.
         (__hidden_ver1): New.
         (hidden_ver, hidden_def, hidden_weak): Use it.
         (hidden_data_ver, hidden_data_ver, hidden_data_weak): Use non-data
         version of the macro.

http://sourceware.org/cgi-bin/cvsweb.cgi/libc/include/libc-symbols.h.diff?r1=1.70&r2=1.71&cvsroot=glibc

- Dan