From: Chris Lattner <sabre@nondot.org>
Date: Wed, 12 Mar 2008 00:50:01 +0000 (+0000)
Subject: This is a simple fix for getting error messages from dlerror in
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=d5f1627d2c6b96a3fc4dc3025043912fb7b00687;p=oota-llvm.git

This 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.

Patch by Julien Lerouge!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48270 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/System/DynamicLibrary.cpp b/lib/System/DynamicLibrary.cpp
index 9c52c8a18cd..bdbcbd406fd 100644
--- a/lib/System/DynamicLibrary.cpp
+++ b/lib/System/DynamicLibrary.cpp
@@ -63,7 +63,8 @@ bool DynamicLibrary::LoadLibraryPermanently(const char *Filename,
                                             std::string *ErrMsg) {
   void *H = dlopen(Filename, RTLD_LAZY);
   if (H == 0) {
-    ErrMsg = new std::string(dlerror());
+    if (ErrMsg)
+      *ErrMsg = dlerror();
     return true;
   }
   OpenedHandles.push_back(H);