From 8fefda2bb911a55f485cec42bb9c438fa3c3e402 Mon Sep 17 00:00:00 2001
From: Siu Chi Chan <siuchi.chan@amd.com>
Date: Thu, 26 Mar 2020 07:36:09 -0400
Subject: [PATCH] Initialize all undef symbols with a magic poison (#1962)

---
 src/program_state.inl | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/program_state.inl b/src/program_state.inl
index 27fa9f2b0e..bdf127c9c5 100644
--- a/src/program_state.inl
+++ b/src/program_state.inl
@@ -355,8 +355,11 @@ public:
 
             const auto it1 = get_symbol_addresses().find(x);
             if (it1 == get_symbol_addresses().cend()) {
-                hip_throw(std::runtime_error{
-                    "Global symbol: " + x + " is undefined."});
+                // For a unknown symbol, initialize it with a magic poison
+                hsa_executable_agent_global_variable_define(
+                    executable, agent, x.c_str(), 
+                    reinterpret_cast<void*>(0xDEADBEEFDEADBEEFull));
+                continue;
             }
 
             hsa_status_t status;