[Bug target/50989] New: sparc libgcc2 __udivmoddi4 has undefined reference to .umul

[joel at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50989

             Bug #: 50989
           Summary: sparc libgcc2 __udivmoddi4 has undefined reference to
                    .umul
    Classification: Unclassified
           Product: gcc
           Version: 4.7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: joel@gcc.gnu.org


Thu Nov  3 12:25:34 UTC 2011 (revision 180821)

This is a regression from 4.6.

This failure is from the autoconf probe in RTEMS looking for scandir().  It
fails because of a linking error.

I think this is because sparc/t-softmul is not in the tmake_file list in
libgcc/config.host. Does it sound right?  RTEMS is always cross compiled and
sparc-rtems* is always (for now) v7 and v8 sparc.

configure:5128: sparc-rtems4.11-gcc --pipe -o conftest -g -O2 -Wall
-Wimplicit-function-declaration -Wstrict-prototypes -Wnested-externs  
conftest.c  >&5
conftest.c:49:1: warning: function declaration isn't a prototype
[-Wstrict-prototypes]
conftest.c:58:1: warning: function declaration isn't a prototype
[-Wstrict-prototypes]
/users/joel/test-gcc/install-svn/lib/gcc/sparc-rtems4.11/4.7.0/../../../../sparc-rtems4.11/bin/ld:
warning: cannot find entry symbol _start; defaulting to 0000000000010074
/users/joel/test-gcc/install-svn/lib/gcc/sparc-rtems4.11/4.7.0/../../../../sparc-rtems4.11/lib/libg.a(lib_a-qsort.o):
In function `qsort':
/users/joel/test-gcc/gcc-svn/newlib/libc/search/qsort.c:160: undefined
reference to `.umul'
/users/joel/test-gcc/gcc-svn/newlib/libc/search/qsort.c:208: undefined
reference to `.umul'
/users/joel/test-gcc/gcc-svn/newlib/libc/search/qsort.c:214: undefined
reference to `.udiv'
/users/joel/test-gcc/gcc-svn/newlib/libc/search/qsort.c:218: undefined
reference to `.udiv'
/users/joel/test-gcc/gcc-svn/newlib/libc/search/qsort.c:163: undefined
reference to `.umul'
/users/joel/test-gcc/gcc-svn/newlib/libc/search/qsort.c:165: undefined
reference to `.umul'
/users/joel/test-gcc/gcc-svn/newlib/libc/search/qsort.c:201: undefined
reference to `.umul'
/users/joel/test-gcc/gcc-svn/newlib/libc/search/qsort.c:154: undefined
reference to `.umul'
/users/joel/test-gcc/install-svn/lib/gcc/sparc-rtems4.11/4.7.0/libgcc.a(_divdi3.o):
In function `__udivmoddi4':
/users/joel/test-gcc/gcc-svn/libgcc/libgcc2.c:935: undefined reference to
`.udiv'