Add EH support to the MCJIT.
This gets exception handling working on ELF and Macho (x86-64 at least).
Other than the EH frame registration, this patch also implements support
for GOT relocations which are used to locate the personality function on
MachO.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181167 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/ExecutionEngine/MCJIT/MCJIT.cpp b/lib/ExecutionEngine/MCJIT/MCJIT.cpp
index ccaa72a..38aa547 100644
--- a/lib/ExecutionEngine/MCJIT/MCJIT.cpp
+++ b/lib/ExecutionEngine/MCJIT/MCJIT.cpp
@@ -168,15 +168,14 @@
// If the call to Dyld.resolveRelocations() is removed from loadObject()
// we'll need to do that here.
loadObject(M);
-
- // Set page permissions.
- MemMgr->applyPermissions();
-
- return;
+ } else {
+ // Resolve any relocations.
+ Dyld.resolveRelocations();
}
- // Resolve any relocations.
- Dyld.resolveRelocations();
+ StringRef EHData = Dyld.getEHFrameSection();
+ if (!EHData.empty())
+ MemMgr->registerEHFrames(EHData);
// Set page permissions.
MemMgr->applyPermissions();