From bf783a6aa890d7e759f2e920e89ca6179e6c7fc0 Mon Sep 17 00:00:00 2001
From: Lang Hames <lhames@gmail.com>
Date: Fri, 19 Jun 2020 09:59:23 -0700
Subject: [PATCH] [JITLink] Display host -> target address mapping in debugging
 output.

This can be helpful for sanity checking JITLink memory manager behavior.
---
 llvm/lib/ExecutionEngine/JITLink/JITLinkGeneric.cpp | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/llvm/lib/ExecutionEngine/JITLink/JITLinkGeneric.cpp b/llvm/lib/ExecutionEngine/JITLink/JITLinkGeneric.cpp
index ec6681c823f6..1d76a49939dc 100644
--- a/llvm/lib/ExecutionEngine/JITLink/JITLinkGeneric.cpp
+++ b/llvm/lib/ExecutionEngine/JITLink/JITLinkGeneric.cpp
@@ -267,11 +267,12 @@ Error JITLinkerBase::allocateSegments(const SegmentLayoutMap &Layout) {
     return AllocOrErr.takeError();
 
   LLVM_DEBUG({
-    dbgs() << "JIT linker got working memory:\n";
+    dbgs() << "JIT linker got memory (working -> target):\n";
     for (auto &KV : Layout) {
       auto Prot = static_cast<sys::Memory::ProtectionFlags>(KV.first);
       dbgs() << "  " << Prot << ": "
-             << (const void *)Alloc->getWorkingMemory(Prot).data() << "\n";
+             << (const void *)Alloc->getWorkingMemory(Prot).data() << " -> "
+             << formatv("{0:x16}", Alloc->getTargetMemory(Prot)) << "\n";
     }
   });