<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/81650>81650</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            [CMake] Support package/install with LLVM_USE_SPLIT_DWARF
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            new issue
      </td>
    </tr>

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

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

<pre>
    [MikeHolman](https://discourse.llvm.org/u/MikeHolman)
(https://discourse.llvm.org/t/rfc-turn-on-llvm-use-split-dwarf-by-default-for-linux-debug-build/76724/24?u=jsji)
How does this work with packages/installs? It has been a while since I looked at this, but I recall that the .dwo files do not get installed by the install target. Maybe they can just be copied over to the install directory, but I imagine there are pathing issues to sort out. Anyway, I think this is something to consider (and hopefully fix!) before changing the default.

[dblaikie](https://discourse.llvm.org/u/dblaikie)
 (https://discourse.llvm.org/t/rfc-turn-on-llvm-use-split-dwarf-by-default-for-linux-debug-build/76724/25?u=jsji)
This proposal is only to change the defaults for Debug builds - presumably no one’s making a package installation from them.

but if they were, they’d need to build a .dwp file by merging all the .dwo files - I don’t think we have any build infrastructure/rules for doing that - **you can run a dwp tool (binutils dwp or llvm-dwp) in -e mode, passing it the executable, and it’ll read the skeleton units from the executable to find all the dwo paths - and merge those together into <binary>.dwp**

We should do call llvm-dwp and install dwp files when LLVM_USE_SPLIT_DWARF is on.
</pre>
<img width="1px" height="1px" alt="" src="http://email.email.llvm.org/o/eJzEVU1v4zYQ_TX0ZSDDpuxEOvjgXa-wBjZA0Wy7x4ASRxJjiiPwI4r-fUHKcRJgD-2plwQWNU8z7715FM6pziAe2P4L259WIvie7OHZPatVTXKOzx_UBb-THoRh-xPjRe_96Fh-ZLxivJLKNRSsw7XWL8OabMd4FRivPpTxkm1ObHP8d8We8cq2TeaDNRmZLB5lwWHmRq18Jidh26yeM4mtCNpnLdlMKxNeM4l16LI6KC0Zr-7v7vmO8YrvWF4Flp_iVLdevtMEktCB75WDiewFJuV7GEVzER06xitlnBdaO5ZXcPbQCwc1ogEBU680glOmQTiDJrqgBOETFuNfoQ4ezmCxEVqD79MJwlpOBK3S6EASGPLQoYfrV1BCPafXrg_AC9uhX8ODmGuMJzM0wsBzcB5qhIZGhRLoBS14-lQplcXGk53fe1GD6JRJMBZBWIRR-F6ZDpRzIdJA4Mh6oODXcDTzJFL1Oc5kLgtLyoGjAZc6T9CQcUqiBcYLYST0NGIbtJ6hVa-MbxkvocaWLELTC9Olsh7hqtz66orl7_6LrLVQF4X_yWa3ojdh4X9y2f53LvsZaRstjeSEjvyR0XOiLvKBH9lw0JKFUwSHBO4gg9GiC4Oo9QyGgAyyb5wVG1aWDgZxiYSKN8u-yS-8IgOtpSHCD59YjmZQ7WKmCS1GieOPG6wEgyhjh6kHENG1Y3Jt9OeANqm4-PqTpTM4gyRzQ_JX50wIvXhBEGa-YirTWuG8DY0PsYXKhggQx5e0eER4yIDxI-PHmULyvQ1x82IznkhHlWtlglfapYdkIUkopzHaThnIEAaSacQx5lz0-rKI-IpN8KLW6TA6V_lb31qDRSHTi-6CGj0ZCEZFga6cfgCITLXKyBsjkZC4WpGQiBwZizqTi-92GBcQlPEELP9aKyPszPJv69R2HPejWr8QXE9By5gXKUveRlyaflv3q0AOph4N_Pjx98PTX4_fnh7_-HH--XT6dfyzWqy3XslDLsu8FCs8bO8398V-U5TbVX_Ii_1u39RyJ0psyzuZt0Ve451o9y3fbmu-Uge-4bsN3-bbcrPlu3Uh2l1R7Ft5VxayFju22-AglL7t2CoFy6HY3u03Ky1q1C7dMpwbnJbUYZzHS8ce0lh16BzbbbRy3r2jeOV1up6-PohLjAZ4DOMYk-pq-_egXgL8d-OvgtWHz6HQKd-Het3QwHgVv3b9l42WnrGJ8bAkI-NVmuGfAAAA___PXGWT">