From 0e49fe814065ce382c34f4ba884be4a51f9c6e4c Mon Sep 17 00:00:00 2001 From: Nick Lewycky Date: Tue, 17 Nov 2009 07:52:09 +0000 Subject: [PATCH] Fail less mysteriously; inform the user that their LLVM was not built with libffi support and that the interpreter can't call external functions without it. Patch by Timo Juhani Lindfors! Fixes PR5466. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89062 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/ExecutionEngine/Interpreter/ExternalFunctions.cpp | 3 +++ 1 file changed, 3 insertions(+) diff --git a/lib/ExecutionEngine/Interpreter/ExternalFunctions.cpp b/lib/ExecutionEngine/Interpreter/ExternalFunctions.cpp index a620de59cfd..8b4e9613ad7 100644 --- a/lib/ExecutionEngine/Interpreter/ExternalFunctions.cpp +++ b/lib/ExecutionEngine/Interpreter/ExternalFunctions.cpp @@ -284,6 +284,9 @@ GenericValue Interpreter::callExternalFunction(Function *F, else llvm_report_error("Tried to execute an unknown external function: " + F->getType()->getDescription() + " " +F->getName()); +#ifndef USE_LIBFFI + errs() << "Recompiling LLVM with --enable-libffi might help.\n"; +#endif return GenericValue(); } -- 2.11.0