<html>
    <head>
      <base href="https://llvm.org/bugs/" />
    </head>
    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW --- - lld can't be used with GCC 7"
   href="https://llvm.org/bugs/show_bug.cgi?id=28414">28414</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>lld can't be used with GCC 7
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>lld
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>unspecified
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>PC
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>Linux
          </td>
        </tr>

        <tr>
          <th>Status</th>
          <td>NEW
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>normal
          </td>
        </tr>

        <tr>
          <th>Priority</th>
          <td>P
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>ELF
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>unassignedbugs@nondot.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>hjl.tools@gmail.com
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>llvm-bugs@lists.llvm.org
          </td>
        </tr>

        <tr>
          <th>Classification</th>
          <td>Unclassified
          </td>
        </tr></table>
      <p>
        <div>
        <pre>On Linux/x86-64, when GCC 7 configured with

/export/gnu/import/git/sources/gcc/configure --enable-languages=c,c++,fortran
--disable-bootstrap --enable-libmpx
--with-ld=/export/build/gnu/llvm-clang/release/opt/llvm/master/bin/lld
--with-plugin-ld=/export/build/gnu/llvm-clang/release/opt/llvm/master/bin/lld 
--prefix=/usr/gcc-7.0.0 --with-local-prefix=/usr/local
--enable-gnu-indirect-function --with-fpmath=sse

I got

mkdir -p -- 32
/export/build/gnu/gcc-test/build-x86_64-linux/./gcc/xgcc
-B/export/build/gnu/gcc-test/build-x86_64-linux/./gcc/
-B/usr/gcc-7.0.0/x86_64-pc-linux-gnu/bin/
-B/usr/gcc-7.0.0/x86_64-pc-linux-gnu/lib/ -isystem
/usr/gcc-7.0.0/x86_64-pc-linux-gnu/include -isystem
/usr/gcc-7.0.0/x86_64-pc-linux-gnu/sys-include    -O2  -O2 -g -DIN_GCC    -W
-Wall -Wno-narrowing -Wwrite-strings -Wcast-qual -Wstrict-prototypes
-Wmissing-prototypes -Wold-style-definition  -isystem ./include   -fpic
-mlong-double-80 -DUSE_ELF_SYMVER -g -DIN_LIBGCC2 -fbuilding-libgcc
-fno-stack-protector  -shared -nodefaultlibs -Wl,--soname=libgcc_s.so.1
-Wl,--version-script=libgcc.map -o 32/libgcc_s.so.1.tmp -O2 -g -m32 -B./
_muldi3_s.o _negdi2_s.o _lshrdi3_s.o _ashldi3_s.o _ashrdi3_s.o _cmpdi2_s.o
_ucmpdi2_s.o _clear_cache_s.o _trampoline_s.o __main_s.o _absvsi2_s.o
_absvdi2_s.o _addvsi3_s.o _addvdi3_s.o _subvsi3_s.o _subvdi3_s.o _mulvsi3_s.o
_mulvdi3_s.o _negvsi2_s.o _negvdi2_s.o _ctors_s.o _ffssi2_s.o _ffsdi2_s.o
_clz_s.o _clzsi2_s.o _clzdi2_s.o _ctzsi2_s.o _ctzdi2_s.o _popcount_tab_s.o
_popcountsi2_s.o _popcountdi2_s.o _paritysi2_s.o _paritydi2_s.o _powisf2_s.o
_powidf2_s.o _powixf2_s.o _powitf2_s.o _mulsc3_s.o _muldc3_s.o _mulxc3_s.o
_multc3_s.o _divsc3_s.o _divdc3_s.o _divxc3_s.o _divtc3_s.o _bswapsi2_s.o
_bswapdi2_s.o _clrsbsi2_s.o _clrsbdi2_s.o _fixunssfsi_s.o _fixunsdfsi_s.o
_fixunsxfsi_s.o _fixsfdi_s.o _fixdfdi_s.o _fixxfdi_s.o _fixunssfdi_s.o
_fixunsdfdi_s.o _fixunsxfdi_s.o _floatdisf_s.o _floatdidf_s.o _floatdixf_s.o
_floatundisf_s.o _floatundidf_s.o _floatundixf_s.o _divdi3_s.o _moddi3_s.o
_udivdi3_s.o _umoddi3_s.o _udiv_w_sdiv_s.o _udivmoddi4_s.o cpuinfo_s.o
tf-signs_s.o sfp-exceptions_s.o addtf3_s.o divtf3_s.o eqtf2_s.o getf2_s.o
letf2_s.o multf3_s.o negtf2_s.o subtf3_s.o unordtf2_s.o fixtfsi_s.o
fixunstfsi_s.o floatsitf_s.o floatunsitf_s.o fixtfdi_s.o fixunstfdi_s.o
floatditf_s.o floatunditf_s.o extendsftf2_s.o extenddftf2_s.o extendxftf2_s.o
trunctfsf2_s.o trunctfdf2_s.o trunctfxf2_s.o enable-execute-stack_s.o
unwind-dw2_s.o unwind-dw2-fde-dip_s.o unwind-sjlj_s.o unwind-c_s.o emutls_s.o
libgcc.a -lc && rm -f 32/libgcc_s.so && if [ -f 32/libgcc_s.so.1 ]; then mv -f
32/libgcc_s.so.1 32/libgcc_s.so.1.backup; else true; fi && mv
32/libgcc_s.so.1.tmp 32/libgcc_s.so.1 && (echo "/* GNU ld script"; echo "   Use
the shared library, but some functions are only in"; echo "   the static
library.  */"; echo "GROUP ( libgcc_s.so.1 -lgcc )" ) > 32/libgcc_s.so
-flavor option is missing. Available flavors are gnu, darwin or link.
collect2: error: ld returned 1 exit status
Makefile:945: recipe for target 'libgcc_s.so' failed
make[5]: *** [libgcc_s.so] Error 1
make[5]: Leaving directory
'/export/build/gnu/gcc-test/build-x86_64-linux/x86_64-pc-linux-gnu/32/libgcc'</pre>
        </div>
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