<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/121322>121322</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            [BOLT]How to add a Global Symbol in BOLT Pass
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            BOLT
      </td>
    </tr>

    <tr>
      <th>Assignees</th>
      <td>
      </td>
    </tr>

    <tr>
      <th>Reporter</th>
      <td>
          wuwen03
      </td>
    </tr>
</table>

<pre>
    When writing a BOLT Pass, I have to add some data in data section and create a Symbol which references the data. Then I will use the Symbol to generate some MCInst. I code it as bellow:
```
        uint8_t *array = new uint8_t [1024];
        auto &Section = BC.registerOrUpdateSection("MyData", ELF::SHT_PROGBITS, BinarySection::getFlags(false,false,true),array,1024);
 array[0] = 1;//generate some data in the Section
 Section.setOutputAddress(/*I don't know*/);
 Section.setOutputFileOffset(/*"I don't know"*/);
        int SymbolAddress;/*I don't know*/
 BC.getOrCreateGlobalSymbol(SymbolAddress, "DATAAt",8);
```
However, the Symbol must be given a definite Address which is corresponding to the Section OutputAddress. However, the OutputAddress and OutputFileOffset is defined after all the BOLT PASSes, so I can't get the information inside my BOLT PASS, and I failed to define them by myself.
Is there any way to handle it?
</pre>
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