I found this old email from Greg online:
http://comments.gmane.org/gmane.comp.debugging.lldb.devel/305
His claim is that without RTLD_FIRST:
> FileSpec plugin_spec ("/plugins/disassembler.dylib");
> void *lib_handle = Host::DynamicLibraryOpen (plugin_spec, error);
> if (lib_handle)
> {
> void *init_callback = Host::DynamicLibraryGetSymbol (lib_handle,
> "InitPlugin", error);
> if (init_callback)
> {
> // Now on linux we might have a function that comes from another
> shared library...
> }
> }
The documentation is indeed fairly scarce on the subject of how things might go
wrong without the flag.. but the description seems compelling enough that I’d
like to keep it..
> On Aug 21, 2014, at 3:31 PM, Zachary Turner <[email protected]> wrote:
>
> Can someone explain this flag to me? I've read the documentation, but it's
> still not clear to me. If you ask dlsym() to search some module X, why would
> it ever search modules other than X?
>
> The reason I ask about this is that llvm support library already has a
> DynamicLibrary class whose purpose almost exactly matches what we're using
> the Host::DynamicLibrary related functions for. However, it doesn't use the
> RTLD_FIRST flag, and so I'm not sure what the implications are of us using it
> and deleting our own DynamicLibrary code.
> _______________________________________________
> lldb-dev mailing list
> [email protected]
> http://lists.cs.uiuc.edu/mailman/listinfo/lldb-dev
Thanks,
- Enrico
📩 egranata@.com ☎️ 27683
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