From 31ef836d222aaa8786d4ac2c36e09e4fd9e02929 Mon Sep 17 00:00:00 2001
From: Mason Reed <mason@vector35.com>
Date: Tue, 3 Dec 2024 17:49:11 -0500
Subject: Replace bad auto symbol for Itanium RTTI

---
 plugins/rtti/rtti.cpp | 25 +++++++++++++++++++------
 1 file changed, 19 insertions(+), 6 deletions(-)

(limited to 'plugins/rtti/rtti.cpp')

diff --git a/plugins/rtti/rtti.cpp b/plugins/rtti/rtti.cpp
index d99983ee..623c523b 100644
--- a/plugins/rtti/rtti.cpp
+++ b/plugins/rtti/rtti.cpp
@@ -14,13 +14,26 @@ std::optional<std::string> RTTI::DemangleNameMS(BinaryView* view, bool allowMang
 }
 
 
-std::optional<std::string> RTTI::DemangleNameGNU3(BinaryView* view, bool allowMangled, const std::string &mangledName)
+std::string RemoveItaniumPrefix(const std::string& name) {
+    // Remove class prefixes.
+    // 7 is class_type
+    // 9 is si_class_type
+    // 14 is vmi_class_type
+    if (name.rfind('7', 0) == 0)
+        return name.substr(1);
+    if (name.rfind('9', 0) == 0)
+        return name.substr(1);
+    if (name.rfind("14", 0) == 0)
+        return name.substr(2);
+    return name;
+}
+
+
+std::optional<std::string> RTTI::DemangleNameItanium(BinaryView* view, bool allowMangled, const std::string &mangledName)
 {
-    QualifiedName demangledName = {};
-    Ref<Type> outType = {};
-    if (!DemangleGNU3(view->GetDefaultArchitecture(), mangledName, outType, demangledName, true))
-        return DemangleNameLLVM(allowMangled, mangledName);
-    return demangledName.GetString();
+    if (auto demangledName = DemangleNameLLVM(allowMangled, mangledName))
+        return RemoveItaniumPrefix(demangledName.value());
+    return std::nullopt;
 }
 
 
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