[Bug target/43669] New: libgcc build fails with Error: cannot represent subtraction with an offset

[Bug target/43669] New: libgcc build fails with Error: cannot represent subtraction with an offset

[segher at gcc dot gnu dot org]

libgcc build fails with:

/home/segher/buildall-RC/xtensa/gcc/./gcc/xgcc
-B/home/segher/buildall-RC/xtensa/gcc/./gcc/
-B/n/17/segher/cross-RC/xtensa-linux/bin/
-B/n/17/segher/cross-RC/xtensa-linux/lib/ -isystem
/n/17/segher/cross-RC/xtensa-linux/include -isystem
/n/17/segher/cross-RC/xtensa-linux/sys-include    -g -O2 -O2  -g -O2 -DIN_GCC
-DCROSS_DIRECTORY_STRUCTURE  -W -Wall -Wwrite-strings -Wcast-qual
-Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition  -isystem
./include  -fPIC -g  -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED -Dinhibit_libc  -I.
-I. -I../.././gcc -I/n/17/segher/src/gcc-4.5.0-RC-20100406/libgcc
-I/n/17/segher/src/gcc-4.5.0-RC-20100406/libgcc/.
-I/n/17/segher/src/gcc-4.5.0-RC-20100406/libgcc/../gcc
-I/n/17/segher/src/gcc-4.5.0-RC-20100406/libgcc/../include  -DHAVE_CC_TLS  -o
_mulvsi3.o -MT _mulvsi3.o -MD -MP -MF _mulvsi3.dep -DL_mulvsi3 -c
/n/17/segher/src/gcc-4.5.0-RC-20100406/libgcc/../gcc/libgcc2.c \

/tmp/ccoNFjKb.s: Assembler messages:
/tmp/ccoNFjKb.s:101: Error: cannot represent subtraction with an offset


-- 
           Summary: libgcc build fails with  Error: cannot represent
                    subtraction with an offset
           Product: gcc
           Version: 4.5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: segher at gcc dot gnu dot org
  GCC host triplet: x86_64-linux
GCC target triplet: xtensa-linux


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43669

[Bug target/43669] libgcc build fails with Error: cannot represent subtraction with an offset

[segher at gcc dot gnu dot org]

------- Comment #1 from segher at gcc dot gnu dot org  2010-04-07 14:53 -------
cc:ing maintainer


-- 

segher at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |bob dot wilson at acm dot
                   |                            |org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43669

[Bug target/43669] libgcc build fails with Error: cannot represent subtraction with an offset

[sterling_augustine at tensilica dot com]

------- Comment #2 from sterling_augustine at tensilica dot com  2010-04-08 16:05 -------
(Removed Bob Wilson who is no longer maintaining the Xtensa port.)

This problem was actually a limitation in the gnu assembler, and is fixed
there. Unfortunately, this change didn't make it into the binutils 2.20.1
release, so your only option is to apply the patch described in the message
here:

http://sourceware.org/ml/binutils/2009-09/msg00546.html


-- 

sterling_augustine at tensilica dot com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|bob dot wilson at acm dot   |
                   |org                         |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43669