[LLVMdev] [PATCH] Get dlerror() messages

Julien Lerouge jlerouge at apple.com
Tue Mar 11 17:09:53 PDT 2008


Attached is a simple fix for getting error messages from dlerror in
LoadLibraryPermanently. The current code modifies the value of a pointer
that is passed by value, so the caller never gets the message.

Hope this helps,

Julien Lerouge
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-------------- next part --------------
Index: lib/System/DynamicLibrary.cpp
--- lib/System/DynamicLibrary.cpp	(revision 48244)
+++ lib/System/DynamicLibrary.cpp	(working copy)
@@ -63,7 +63,8 @@
                                             std::string *ErrMsg) {
   void *H = dlopen(Filename, RTLD_LAZY);
   if (H == 0) {
-    ErrMsg = new std::string(dlerror());
+    if (ErrMsg)
+      *ErrMsg = dlerror();
     return true;

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