<html>
    <head>
      <base href="http://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 --- - relocation truncated to fit: R_X86_64_PC32 against symbol `environ' defined in COMMON section in /usr/lib/crt1.o"
   href="http://llvm.org/bugs/show_bug.cgi?id=19764">19764</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>relocation truncated to fit: R_X86_64_PC32 against symbol `environ' defined in COMMON section in /usr/lib/crt1.o
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>clang
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>3.4
          </td>
        </tr>

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

        <tr>
          <th>OS</th>
          <td>FreeBSD
          </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>-New Bugs
          </td>
        </tr>

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

        <tr>
          <th>Reporter</th>
          <td>harry.weppner@gmx.net
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>llvmbugs@cs.uiuc.edu
          </td>
        </tr>

        <tr>
          <th>Classification</th>
          <td>Unclassified
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Created <span class=""><a href="attachment.cgi?id=12519" name="attach_12519" title="minimal example to illustrate the issue">attachment 12519</a> <a href="attachment.cgi?id=12519&action=edit" title="minimal example to illustrate the issue">[details]</a></span>
minimal example to illustrate the issue

Hi there,

in an attempt to compile
<a href="http://blogs.utexas.edu/jdm4372/2013/01/17/stream-version-5-10-released/">http://blogs.utexas.edu/jdm4372/2013/01/17/stream-version-5-10-released/</a> with
clang 3.4 on a FreeBSD 10.0-stable system, the linker fails when using large
arrays and using mcodel=medium. gcc47 and higher compile and link the same
program just fine.

I've attached a minimal example "big_array.c" that fails to link when using -O0
but works with -O1 and higher.

$ clang -O0 -mcmodel=medium big_array.c -o big_array
/usr/lib/crt1.o: In function `_start':
/usr/src/lib/csu/amd64/crt1.c:(.text+0x1f): relocation truncated to fit:
R_X86_64_PC32 against symbol `environ' defined in COMMON section in
/usr/lib/crt1.o
/usr/src/lib/csu/amd64/crt1.c:(.text+0x29): relocation truncated to fit:
R_X86_64_PC32 against symbol `environ' defined in COMMON section in
/usr/lib/crt1.o
clang: error: linker command failed with exit code 1 (use -v to see invocation)

Thanks & cheerio, Harry.</pre>
        </div>
      </p>
      <hr>
      <span>You are receiving this mail because:</span>
      
      <ul>
          <li>You are on the CC list for the bug.</li>
      </ul>
    </body>
</html>