[Bug libgcc/61309] New: cilk-plus tests fail with: hidden symbol `__cpu_model' in /x/gcc/testsuite/g++/../../libgcc.a(cpuinfo.o) is referenced by DSO

[Bug libgcc/61309] New: cilk-plus tests fail with: hidden symbol `__cpu_model' in /x/gcc/testsuite/g++/../../libgcc.a(cpuinfo.o) is referenced by DSO

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61309

            Bug ID: 61309
           Summary: cilk-plus tests fail with: hidden symbol `__cpu_model'
                    in /x/gcc/testsuite/g++/../../libgcc.a(cpuinfo.o) is
                    referenced by DSO
           Product: gcc
           Version: 4.10.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: libgcc
          Assignee: unassigned at gcc dot gnu.org
          Reporter: redi at gcc dot gnu.org
                CC: gnugcc at marino dot st
            Target: x86_64-unknown-dragonfly3.6

On the new DragonFlyBSD target loads of cilk-plus tests fail with this error:

/usr/libexec/binutils222/elf/ld.bfd: ./reduction-1.exe: hidden symbol
`__cpu_model' in /mnt/scratch/dfly/gcc/testsuite/g++/../../libgcc.a(cpuinfo.o)
is referenced by DSO
/usr/libexec/binutils222/elf/ld.bfd: final link failed: Bad value
collect2: error: ld returned 1 exit status

[Bug libgcc/61309] cilk-plus tests fail with: hidden symbol `__cpu_model' in /x/gcc/testsuite/g++/../../libgcc.a(cpuinfo.o) is referenced by DSO

[gnugcc at marino dot st]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61309

--- Comment #2 from John Marino <gnugcc at marino dot st> ---
FYI, this is still happening.
So if/when DragonFly features libgcc_s from 5.0 in base, these errors will go
away?

If so, doesn't that imply the linking is making assumptions it should not make?

[Bug libgcc/61309] cilk-plus tests fail with: hidden symbol `__cpu_model' in /x/gcc/testsuite/g++/../../libgcc.a(cpuinfo.o) is referenced by DSO

[gnugcc at marino dot st]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61309

--- Comment #4 from John Marino <gnugcc at marino dot st> ---
I suspect the reason it works on FreeBSD is found on libgcc/config.host,
specifically the inclusion of t-freebsd in tmake_file definition.

t-freebsd for i386 add the symbol map $(srcdir)/config/i386/libgcc-bsd.ver
which defines __cpu_model for gcc48 and higher.

DragonFly probably needs the same symbol map.

[Bug libgcc/61309] cilk-plus tests fail with: hidden symbol `__cpu_model' in /x/gcc/testsuite/g++/../../libgcc.a(cpuinfo.o) is referenced by DSO

[gnugcc at marino dot st]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61309

--- Comment #5 from John Marino <gnugcc at marino dot st> ---
hmmm, I added t-freebsd to the tmake list in libgcc/config.host for dragonfly. 
I thought it would fix the problem but I'm still seeing hidden symbol errors
for __cpu_model