<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/61289>61289</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            JIT unable to find symbols from libc_nonshared.a
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            orcjit
      </td>
    </tr>

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

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

<pre>
    Right now, the JIT seems to be unable to find symbols from the static `libc_nonshared.a`, that is linked together with `libc.so`. Until ~2020, this library contained a number of wrappers, including the `*stat` functions. On these systems, for example EL 8 but also not-latest Ubuntus, the following C code:
```c
#include <sys/stat.h>

int main() {
  struct stat s;
  lstat("build.ninja", &s);
  return 0;
}
```
when compiled into IR and then fed to `lli` fails with:
```
JIT session error: Symbols not found: [ lstat ]
./bin/lli: Failed to materialize symbols: { (main, { main }) }
```

The good news is that recent glibc heavily reduced the number of symbols in that static library, up to the point that it only contains `at_quick_exit`, `atexit`, `pthread_atfork`, and `__stack_chk_fail_local`. It would be nice to improve the situation for older systems, but not sure if we can do much about it...
</pre>
<img width="1px" height="1px" alt="" src="http://email.email.llvm.org/o/eJx8VN1u4zYTfRr6ZhBBIeMfXegiP2sgHz6gwHb32qDIkcWE4rjkMF73os9ekHLSdFsUMGTPeEY8c-Yc6pTcMSD2Yv0g1k8rnXmi2E96Ci-0Gshe-q_uODEEOgv5CDwh_O_5GyTEOQETDAg56MFjCUYXLKTLPJBPMEaaa31izc6A2LTeDeYQKKRJR7SNFpt2ealmcAm8C69ogemIPGGEs-Ppva1JJDZtA98DOw9_yFZeW2vfEHW8gKHA2gW0oCHkecAINMI56tMJYyrlLhifrQvHCqwef1_giU0LYw6GHYXUwC-h_J8Q0iUxzrV1pAj4Q88nj_Dl_7CDITNonwgC8Y3XjInh-5AD5_TO1Eje07kc9wiGLAp1L9on0d6Xk-vHXGOpFmgIQj2mSxJyX3A1k1BfriX16QLDrF0QcidkB2L7sOQBEsdsuJINSaiPvK_zlXI5ZOdtE1x40ULKAlLITRKy-1QekXMM0H6kxPbpJ8xLeJ4wgKH55DxacIEJnr-CDrZMHmCsi6zb867Sq51PdaX_ZGEJF12l5CgAxkhRqHv49aqmQAwj5WBLUqwflrlArK_oGiH3Q-FlX85T97DXFRgTzJoxOu3d7_guzvqS7QMIuVvYfKxh-Q1l4Ertv8-9PL9NCEciCwHPqWi3ajiiwcBwLIKFCfWb8xeIaLPBSssnVb67xIWl9WqSq5QLoHwq4EvXicraF5cwUPAfUk-FYM2H37Izrwf84fhqqZr-e3ziKaK2B80jxddrvuxLbNrDIbE2rwczvR7Kog6ejPbVcM8MZ8reFqcHZ6rP3XyK9IaLux1nXXxTHULeYvxsm-KSsruUI4Ib4YxgdABLMGczgR4ol6maplnZXtlOdXqF_e1mu1ObjezUaurVMI53O32L23G0qjOdldvBmm5Yd3qtR7VyvWylalXb3cr1rVLNblyj2tndOBi1bcdR3LU4a-cb79_mhuJx5VLK2G9u5a5beT2gT_UGlJKieXFc7LF-WsW-NNwM-ZjEXetd4vTXK9ixx76I9r8uwJ-vvFWOvp-YT0WDQu6F3B8dT3loDM1VvW_vXzenSC9oWMh9hVsuhYr4zwAAAP__mz7Uig">