[Bug gcov-profile/48845] New: [4.7 regression] All g++.dg/tree-prof and gcc.dg/{matrix, tree-prof} executions tests fail on Solaris 8/9

[ro at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48845

           Summary: [4.7 regression] All g++.dg/tree-prof and
                    gcc.dg/{matrix, tree-prof} executions tests fail on
                    Solaris 8/9
           Product: gcc
           Version: 4.7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: gcov-profile
        AssignedTo: unassig...@gcc.gnu.org
        ReportedBy: r...@gcc.gnu.org
                CC: davi...@gcc.gnu.org
              Host: *-*-solaris2.[89]
            Target: *-*-solaris2.[89]
             Build: *-*-solaris2.[89]


Between 20110421 and 20110429, all g++.dg/tree-prof and gcc.dg/{matrix,
tree-prof}
execution tests started to fail on Solaris 8 and 9, both x86 and SPARC:

+FAIL: g++.dg/tree-prof/indir-call-prof-2.C execution,    -g 
-fprofile-generate

spawn [open ...]
ld.so.1: indir-call-prof-2.x01: fatal:
/var/gcc/regression/trunk/9-gcc-gas/build
/gcc/testsuite/g++/indir-call-prof-2.x01: object requires TLS, but TLS failed
to
 initialize

This obviously happens since profiling now uses TLS under the hood:

[5]     |         4|       4|TLS  |LOCL |0    |9     
|__gcov_indirect_call_callee
[6]     |         0|       4|TLS  |LOCL |0    |9     
|__gcov_indirect_call_counters

So it is caused by this patch:

2011-04-27  Xinliang David Li  <davi...@google.com>

        * tree-profile.c (init_ic_make_global_vars): Set
        tls attribute on ic vars.
        * coverage.c (coverage_end_function): Initialize
        function_list with zero.

Some platforms require special options for TLS, which is handled by
dg-add-options tls.  It seems that all tests in those directories should be
marked

  dg-require-effective-target tls_runtime
  dg-add-options tls

or rather this should be handled in the .exp files instead.

  Rainer