<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">I found this old email from Greg online: <a href="http://comments.gmane.org/gmane.comp.debugging.lldb.devel/305" class="">http://comments.gmane.org/gmane.comp.debugging.lldb.devel/305</a><div class="">His claim is that without RTLD_FIRST:</div><div class=""><br class=""></div><div class=""><pre style="color: rgb(34, 34, 34); line-height: 24px; text-align: justify; background-color: rgb(255, 255, 255);" class="">> 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...
> }
> }
</pre><div class="">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..</div><div class=""><br class=""></div><div class=""><br class=""><div><blockquote type="cite" class=""><div class="">On Aug 21, 2014, at 3:31 PM, Zachary Turner <<a href="mailto:zturner@google.com" class="">zturner@google.com</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div dir="ltr" class="">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?<div class=""><br class="">
</div><div class="">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.</div>
</div>
_______________________________________________<br class="">lldb-dev mailing list<br class=""><a href="mailto:lldb-dev@cs.uiuc.edu" class="">lldb-dev@cs.uiuc.edu</a><br class="">http://lists.cs.uiuc.edu/mailman/listinfo/lldb-dev<br class=""></div></blockquote></div><br class=""><div class="">
<div style="color: rgb(0, 0, 0); letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div style="color: rgb(0, 0, 0); letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div style="color: rgb(0, 0, 0); letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div style="color: rgb(0, 0, 0); letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div style="color: rgb(0, 0, 0); letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div class="">Thanks,</div><div class=""><i class="">- Enrico</i><br class="">📩 egranata@<font color="#ff2600" class=""></font>.com ☎️ 27683</div><div class=""><br class=""></div></div></div></div></div></div><br class="Apple-interchange-newline"><br class="Apple-interchange-newline">
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