All libgomp tests fail to link on IRIX 6:
Executing on host: /vol/gcc/obj/gcc-4.3.0-20070622/6.5-gcc/gcc/xgcc
-B/vol/gcc/obj/gcc-4.3.0-20070622/6.5-gcc/gcc/
/vol/gcc/src/gcc-dist/libgomp/testsuite/libgomp.fortran/appendix-a/a.16.1.f90
-B/vol/gcc/obj/gcc-4.3.0-20070622/6.5-gcc/mips-sgi-irix6.5/./libgomp/
-I/vol/gcc/obj/gcc-4.3.0-20070622/6.5-gcc/mips-sgi-irix6.5/./libgomp
-I/vol/gcc/src/gcc-dist/libgomp/testsuite/.. -fmessage-length=0 -fopenmp -O0
-L/vol/gcc/obj/gcc-4.3.0-20070622/6.5-gcc/mips-sgi-irix6.5/./libgomp/.libs
-lgomp
-L/vol/gcc/obj/gcc-4.3.0-20070622/6.5-gcc/mips-sgi-irix6.5/./libgomp/../libgfortran/.libs
-lgfortranbegin -lgfortran -lm -o ./a.16.1.exe (timeout = 300)
ld32: ERROR 33 : Unresolved data symbol "copysignl" -- 1st referenced by
/vol/gcc/obj/gcc-4.3.0-20070622/6.5-gcc/gcc/libgcc.a(_divtc3.o).
Use linker option -v to see when and which objects, archives and dsos
are loaded.
ld32: INFO 152: Output file removed because of error.
collect2: ld returned 2 exit status
compiler exited with status 1
This happens because libgcc contains an undefined reference to copysignl.
This function is present in libm, but libm is before libgcc on the linker
command line, as can be seen with -v:
/vol/gcc/obj/gcc-4.3.0-20070622/6.5-gcc/gcc/collect2 -call_shared
-no_unresolved -init __gcc_init -fini __gcc_fini -_SYSTYPE_SVR4 -woff 131 -n32
-o ./a.16.1.exe /usr/lib32/mips3/crt1.o
/vol/gcc/obj/gcc-4.3.0-20070622/6.5-gcc/gcc/irix-crti.o
/vol/gcc/obj/gcc-4.3.0-20070622/6.5-gcc/gcc/crtbegin.o
-L/vol/gcc/obj/gcc-4.3.0-20070622/6.5-gcc/mips-sgi-irix6.5/./libgomp/.libs
-L/vol/gcc/obj/gcc-4.3.0-20070622/6.5-gcc/mips-sgi-irix6.5/./libgomp/../libgfortran/.libs
-L/vol/gcc/obj/gcc-4.3.0-20070622/6.5-gcc/gcc
-L/vol/gcc/obj/gcc-4.3.0-20070622/6.5-gcc/mips-sgi-irix6.5/./libgomp
-L/lib/../lib32 -L/usr/lib/../lib32 /var/tmp//ccCchLrr.o -lgomp -lgfortranbegin
-lgfortran -lm -lgomp -dont_warn_unused -lgcc -lgcc_eh -warn_unused
-L/usr/lib32/mips3 -L/usr/lib32 -dont_warn_unused -lpthread -lc -warn_unused
-dont_warn_unused -lgcc -lgcc_eh -warn_unused
/vol/gcc/obj/gcc-4.3.0-20070622/6.5-gcc/gcc/crtend.o
/vol/gcc/obj/gcc-4.3.0-20070622/6.5-gcc/gcc/irix-crtn.o /usr/lib32/mips3/crtn.o
The 4.2 branch is affected as well.
Environment:
System: IRIX64 columba 6.5 07010238 IP27
host: mips-sgi-irix6.5
build: mips-sgi-irix6.5
target: mips-sgi-irix6.5
configured with: /vol/gcc/src/gcc-dist/configure --prefix=/vol/gcc
--with-local-prefix=/vol/gcc --disable-nls --with-gnu-as
--with-as=/vol/gcc/lib/gas-2.17 --enable-libgcj --with-gmp=/vol/gcc
--with-mpfr=/vol/gcc --disable-libmudflap
--enable-languages=c,ada,c++,fortran,objc --no-create --no-recursion
How-To-Repeat:
Bootstrap and test as described above.
------- Comment #1 from ro at techfak dot uni-bielefeld dot de 2007-06-28
17:35 -------
Fix:
There are two possible solutions:
* add -lgcc -lm to the link_gomp spec (this is obviously a hack)
* add -lm to the libgcc spec (this seems to be the proper solution)
Comments?
--
Summary: All libgomp tests fail to link on IRIX 6: copysignl
undefined
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: libgomp
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: ro at techfak dot uni-bielefeld dot de
GCC build triplet: mips-sgi-irix6.5
GCC host triplet: mips-sgi-irix6.5
GCC target triplet: mips-sgi-irix6.5
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32538
