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    On 4/10/12 10:11 PM, 15102925731 wrote:
    <blockquote
      cite="mid:17dd7b99.6c38.1369f62c87a.Coremail.zhenkaixd@126.com"
      type="cite">
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      <div style="line-height: 1.7; color: rgb(0, 0, 0); font-size:
        14px; font-family: arial;">It's actually is .c file. <br>
        I just want firstly to compile helloworldmodule.c into
        helloworldmodule.bc.<br>
        Then I run a LLVM pass on it to do some optimization, and then I
        compile the modified .bc file into .ko file.<br>
        <br>
         So, could you tell me how to compile helloworldmodule.c into
        helloworldmodule.bc? I think it's not the same command <b>"clang
          -O3 -emit-llvm hello.c -c -o hello.bc". </b>Because it is a
        device driver that will be at last compiled to be .ko file.<br>
      </div>
    </blockquote>
    <br>
    No, that's exactly how you would do it, although you might need to
    use GCC + Dragonegg instead of clang because the Linux 3.0 kernel
    doesn't compile with Clang out-of-the-box (at least for me, anyway).<br>
    <br>
    -- John T.<br>
    <br>
    <blockquote
      cite="mid:17dd7b99.6c38.1369f62c87a.Coremail.zhenkaixd@126.com"
      type="cite">
      <div
        style="line-height:1.7;color:#000000;font-size:14px;font-family:arial"><br>
        Thank you!<br>
        <br>
        <div>--<br>
          <div>
            <div>
              <div><font color="#c0c0c0" size="2">
                  <div><font color="#c0c0c0"><font size="3">  <span
                          style="COLOR: #000000">          祝好!</span></font></font></div>
                  <span style="COLOR: #000000">
                    <div> </div>
                    <div><font size="3">  甄凯</font></div>
                    <div>
                      <div><font color="#c0c0c0"><font size="3">------------------------------------------------------------------------------------------------------</font></font></div>
                    </div>
                    <div><font color="#c0c0c0"><font size="3">2012-04-11</font></font></div>
                  </span></font></div>
              <div><font color="#c0c0c0"><font size="3">------------------------------------------------------------------------------------------------------</font></font></div>
              <div><font color="#c0c0c0"><font size="3">Name:
                    甄凯(ZhenKai)<br>
                    Homepage:<a class="moz-txt-link-freetext" href="http://www.renren.com/262729393">http://www.renren.com/262729393</a></font></font></div>
              <div><font color="#c0c0c0"><font size="3">Email: </font><a
                    moz-do-not-send="true"
                    href="mailto:zhenkaixd@126.com" target="_blank"
                    _listener="1901"><font color="#0066cc" size="3">zhenkaixd@126.com</font></a><font
                    size="3"> or <a moz-do-not-send="true"
                      href="mailto:846227103@qq.com">846227103@qq.com</a></font></font></div>
              <div><font color="#c0c0c0" size="3">TEL:
                  15810729006(Beijing)<br>
                  Address: Room I-406, Central Building, Tsinghua
                  University, Beijing, China. 100084.</font></div>
            </div>
          </div>
        </div>
        <br>
        在 2012-04-11
        09:56:21,"Justin Holewinski" <a class="moz-txt-link-rfc2396E" href="mailto:justin.holewinski@gmail.com"><justin.holewinski@gmail.com></a>
        写道:<br>
        <blockquote id="isReplyContent" style="PADDING-LEFT: 1ex;
          MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid"><br>
          <div class="gmail_quote">2012/4/10 15102925731 <span
              dir="ltr"><<a moz-do-not-send="true"
                href="mailto:zhenkaixd@126.com">zhenkaixd@126.com</a>></span><br>
            <blockquote class="gmail_quote" style="margin:0 0 0
              .8ex;border-left:1px #ccc solid;padding-left:1ex">
              <div
                style="line-height:1.7;font-size:14px;font-family:arial"> Hi,
                my friends<br>
                <br>
                <br>
                I know there is a difference between compiling a linux
                module and a simple helloworld programme.<br>
                If I compile a helloworld.c file, the command is <br>
                <b>"clang -O3 -emit-llvm hello.c -c -o hello.bc"</b><br>
                But what the command should be if I want to compile a
                linux module into a .bc file? (I know it may be an easy
                question to you guys, but I really don't know where to
                find the answer on <a moz-do-not-send="true"
                  href="http://llvm.org" target="_blank">llvm.org</a>.)<br>
              </div>
            </blockquote>
            <div><br>
            </div>
            <div>What do you mean by linux module?  A shared library
              (.so)? A kernel module (.ko)?</div>
            <div> </div>
            <blockquote class="gmail_quote" style="margin:0 0 0
              .8ex;border-left:1px #ccc solid;padding-left:1ex">
              <div
                style="line-height:1.7;font-size:14px;font-family:arial"><br>
                Thank you!<br>
                <br>
                <br>
                <br>
                <br>
                <div>--<br>
                  <div>
                    <div>
                      <div><font color="#c0c0c0">
                          <div><font color="#c0c0c0"><font size="3">  <span
                                  style="">          祝好!</span></font></font></div>
                          <span style="">
                            <div> </div>
                            <div><font size="3">  甄凯</font></div>
                            <div>
                              <div><font color="#c0c0c0"><font size="3">------------------------------------------------------------------------------------------------------</font></font></div>
                            </div>
                            <div><font color="#c0c0c0"><font size="3">2012-04-11</font></font></div>
                          </span></font></div>
                      <div><font color="#c0c0c0"><font size="3">------------------------------------------------------------------------------------------------------</font></font></div>
                      <div><font color="#c0c0c0"><font size="3">Name:
                            甄凯(ZhenKai)<br>
                            Homepage:<a moz-do-not-send="true"
                              href="http://www.renren.com/262729393"
                              target="_blank">http://www.renren.com/262729393</a></font></font></div>
                      <div><font color="#c0c0c0"><font size="3">Email: </font><a
                            moz-do-not-send="true"
                            href="mailto:zhenkaixd@126.com"
                            target="_blank"><font color="#0066cc"
                              size="3">zhenkaixd@126.com</font></a><font
                            size="3"> or <a moz-do-not-send="true"
                              href="mailto:846227103@qq.com"
                              target="_blank">846227103@qq.com</a></font></font></div>
                      <div><font color="#c0c0c0" size="3">TEL:
                          15810729006(Beijing)<br>
                          Address: Room I-406, Central Building,
                          Tsinghua University, Beijing, China. 100084.</font></div>
                    </div>
                  </div>
                </div>
              </div>
              <br>
              <br>
              <span title="neteasefooter"><span></span></span><br>
              _______________________________________________<br>
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              <br>
            </blockquote>
          </div>
          <br>
          <br clear="all">
          <div><br>
          </div>
          -- <br>
          <br>
          <div>Thanks,</div>
          <div><br>
          </div>
          <div>Justin Holewinski</div>
          <br>
        </blockquote>
      </div>
      <br>
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