evm: Restore previous code for tracing

ethereum · Nov 20, 2018 · 9952ab6 · 9952ab6
1 parent 3fd6762
commit 9952ab6
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/libevm/EVMC.cpp b/libevm/EVMC.cpp
@@ -85,6 +85,7 @@ owning_bytes_ref EVMC::exec(u256& io_gas, ExtVMFace& _ext, const OnOpFunc& _onOp
     assert(_ext.envInfo().gasLimit() <= int64max);
     assert(_ext.depth <= static_cast<size_t>(std::numeric_limits<int32_t>::max()));
 
+    auto prevCode = m_code;
     m_code = bytesConstRef{&_ext.code};
 
     auto gas = static_cast<int64_t>(io_gas);
@@ -105,6 +106,8 @@ owning_bytes_ref EVMC::exec(u256& io_gas, ExtVMFace& _ext, const OnOpFunc& _onOp
     m_prevCall = m_currentCall;
     m_currentCall = parentCall;
 
+    m_code = prevCode;
+
     if (_ext.depth == 0)
         dumpTrace();