Add support for named functions
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5258 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/ExecutionEngine/JIT/VM.cpp b/lib/ExecutionEngine/JIT/VM.cpp
index f66d4d7..c107438 100644
--- a/lib/ExecutionEngine/JIT/VM.cpp
+++ b/lib/ExecutionEngine/JIT/VM.cpp
@@ -55,6 +55,22 @@
static void NoopFn() {}
+/// getPointerToNamedFunction - This method returns the address of the specified
+/// function by using the dlsym function call. As such it is only useful for
+/// resolving library symbols, not code generated symbols.
+///
+void *VM::getPointerToNamedFunction(const std::string &Name) {
+ // If it's an external function, look it up in the process image...
+ void *Ptr = dlsym(0, Name.c_str());
+ if (Ptr == 0) {
+ std::cerr << "WARNING: Cannot resolve fn '" << Name
+ << "' using a dummy noop function instead!\n";
+ Ptr = (void*)NoopFn;
+ }
+
+ return Ptr;
+}
+
/// getPointerToFunction - This method is used to get the address of the
/// specified function, compiling it if neccesary.
///
@@ -62,17 +78,8 @@
void *&Addr = GlobalAddress[F]; // Function already code gen'd
if (Addr) return Addr;
- if (F->isExternal()) {
- // If it's an external function, look it up in the process image...
- void *Ptr = dlsym(0, F->getName().c_str());
- if (Ptr == 0) {
- std::cerr << "WARNING: Cannot resolve fn '" << F->getName()
- << "' using a dummy noop function instead!\n";
- Ptr = (void*)NoopFn;
- }
-
- return Addr = Ptr;
- }
+ if (F->isExternal())
+ return Addr = getPointerToNamedFunction(F->getName());
// JIT all of the functions in the module. Eventually this will JIT functions
// on demand. This has the effect of populating all of the non-external