public API to query symbols

public/client/TracyCallstack.cpp

@@ -10,6 +10,9 @@
 #include "../common/TracyAlloc.hpp"
 #include "../common/TracySystem.hpp"
 
+#include <shared_mutex>
+#include <string>
+#include <unordered_map>
 
 #ifdef TRACY_HAS_CALLSTACK
 
@@ -1952,6 +1955,33 @@ CallstackEntryData DecodeCallstackPtr( uint64_t ptr )
 
 #endif
 
+TRACY_API const char* QuerySymbolName(void* ptr)
+{
+#ifndef TRACY_HAS_CALLSTACK
+    return "[unavailable]";
+#else
+    uint64_t address = uint64_t(ptr);
+
+    static std::unordered_map<uint64_t, std::string> s_cache;
+    static std::shared_mutex s_mutex;
+
+    {
+        std::shared_lock lock(s_mutex);
+        auto it = s_cache.find(address);
+        if (it != s_cache.end()) return it->second.c_str();
+    }
+
+    std::unique_lock lock(s_mutex);
+    auto [it, inserted] = s_cache.try_emplace(address);
+    if (inserted)
+    {
+        const char* symbol = DecodeCallstackPtrFast(address);
+        it->second = symbol;
+    }
+    return it->second.c_str();
+#endif
+}
+
 }
 
 #endif

public/client/TracyCallstack.hpp

@@ -26,6 +26,7 @@ namespace tracy
 {
 static constexpr bool has_callstack() { return false; }
 static tracy_force_inline void* Callstack( int32_t /*depth*/ ) { return nullptr; }
+TRACY_API const char* QuerySymbolName(void* address);
 }
 
 #else
@@ -87,6 +88,7 @@ void InitCallstack();
 void InitCallstackCritical();
 void EndCallstack();
 const char* GetKernelModulePath( uint64_t addr );
+TRACY_API const char* QuerySymbolName(void* address);
 
 #ifdef __linux__
 void InitExternalImageCache( pid_t pid );