From 70a1d92d9fbd75da7f1108fccdda1c0997d594ff Mon Sep 17 00:00:00 2001
From: Tony Wasserka <neobrain@users.noreply.github.com>
Date: Mon, 8 Sep 2025 16:27:59 +0200
Subject: [PATCH] CodeCache: Drop ComputeCodeMapId member function

---
 FEXCore/Source/Interface/Context/Context.h       |  2 --
 FEXCore/Source/Interface/Core/CodeCache.cpp      | 16 ----------------
 FEXCore/include/FEXCore/Core/CodeCache.h         |  8 --------
 .../LinuxSyscalls/SyscallsSMCTracking.cpp        |  1 -
 4 files changed, 27 deletions(-)

diff --git a/FEXCore/Source/Interface/Context/Context.h b/FEXCore/Source/Interface/Context/Context.h
index c9e9a1625..9592d77a0 100644
--- a/FEXCore/Source/Interface/Context/Context.h
+++ b/FEXCore/Source/Interface/Context/Context.h
@@ -79,8 +79,6 @@ public:
   ContextImpl& CTX;
   bool IsGeneratingCache = false;
 
-  fextl::string ComputeCodeMapId(std::string_view Filename) override;
-
   void LoadData(Core::InternalThreadState&, std::byte* MappedCacheFile, const ExecutableFileSectionInfo&) override;
   bool SaveData(Core::InternalThreadState&, int TargetFD, const ExecutableFileSectionInfo&, uint64_t SerializedBaseAddress) override;
 
diff --git a/FEXCore/Source/Interface/Core/CodeCache.cpp b/FEXCore/Source/Interface/Core/CodeCache.cpp
index 98441d2b3..c6d86d5e0 100644
--- a/FEXCore/Source/Interface/Core/CodeCache.cpp
+++ b/FEXCore/Source/Interface/Core/CodeCache.cpp
@@ -1,5 +1,4 @@
 // SPDX-License-Identifier: MIT
-#include <FEXHeaderUtils/Filesystem.h>
 #include <Interface/Context/Context.h>
 
 #include <FEXCore/HLE/SyscallHandler.h>
@@ -7,8 +6,6 @@
 
 #include <Interface/GDBJIT/GDBJIT.h>
 
-#include <xxhash.h>
-
 namespace FEXCore {
 
 ExecutableFileInfo::~ExecutableFileInfo() = default;
@@ -45,17 +42,4 @@ void CodeCache::PostCompileCode(FEXCore::Core::InternalThreadState& Thread, void
   }
 }
 
-fextl::string CodeCache::ComputeCodeMapId(std::string_view Filename) {
-  auto base_filename = FHU::Filesystem::GetFilename(Filename);
-  if (!base_filename.empty()) {
-    auto filename_hash = XXH3_64bits(Filename.data(), Filename.size());
-
-    return fextl::fmt::format("{}-{:016x}-{}{}{}", base_filename, filename_hash,
-                              (CTX.Config.SMCChecks == FEXCore::Config::CONFIG_SMC_FULL) ? 'S' : 's', CTX.Config.TSOEnabled ? 'T' : 't',
-                              CTX.Config.ABILocalFlags ? 'L' : 'l');
-  }
-
-  return nullptr;
-}
-
 } // namespace FEXCore::Context
diff --git a/FEXCore/include/FEXCore/Core/CodeCache.h b/FEXCore/include/FEXCore/Core/CodeCache.h
index 2f2ca50ea..3a16fbeaa 100644
--- a/FEXCore/include/FEXCore/Core/CodeCache.h
+++ b/FEXCore/include/FEXCore/Core/CodeCache.h
@@ -37,14 +37,6 @@ class AbstractCodeCache {
 public:
   virtual ~AbstractCodeCache() = default;
 
-  /**
-   * Computes a unique identifier for the referenced binary file to be used for
-   * generating the code map.
-   * This identifier is independent of FEX build/runtime configuration and
-   * stable across FEX updates.
-   */
-  virtual fextl::string ComputeCodeMapId(std::string_view Filename) = 0;
-
   /**
    * Loads a code cache from mapped memory and appends it to the current Core state.
    * TODO: Optionally recompiles all contained code blocks at runtime for validation.
diff --git a/Source/Tools/LinuxEmulation/LinuxSyscalls/SyscallsSMCTracking.cpp b/Source/Tools/LinuxEmulation/LinuxSyscalls/SyscallsSMCTracking.cpp
index 6d4a09b4f..1bebc4df8 100644
--- a/Source/Tools/LinuxEmulation/LinuxSyscalls/SyscallsSMCTracking.cpp
+++ b/Source/Tools/LinuxEmulation/LinuxSyscalls/SyscallsSMCTracking.cpp
@@ -380,7 +380,6 @@ void SyscallHandler::TrackMmap(FEXCore::Core::InternalThreadState* Thread, uint6
       if (Inserted) {
         Resource->MappedFile = fextl::make_unique<FEXCore::ExecutableFileInfo>();
         Resource->MappedFile->Filename = fextl::string(Tmp, PathLength);
-        Resource->MappedFile->FileId = CTX->GetCodeCache().ComputeCodeMapId(Resource->MappedFile->Filename);
         Resource->Iterator = Iter;
       }
     }