chakra-core · rhuanjl · Oct 9, 2025 · Oct 4, 2025 · Oct 7, 2025 · Oct 7, 2025
diff --git a/azure-pipelines.yml b/azure-pipelines.yml
@@ -33,32 +33,32 @@ jobs:
       maxParallel: 6
       matrix:
         Linux.Debug:
-          image_name: 'ubuntu-22.04'
+          image_name: 'ubuntu-24.04'
           deps: 'sudo apt-get install -y ninja-build clang libicu-dev'
           build_type: 'Debug'
           libtype_flag: ''
         Linux.NoJit:
-          image_name: 'ubuntu-22.04'
+          image_name: 'ubuntu-24.04'
           deps: 'sudo apt-get install -y ninja-build clang libicu-dev'
           build_type: 'Debug'
           libtype_flag: '-DDISABLE_JIT=ON'
         Linux.ReleaseWithDebug:
-          image_name: 'ubuntu-22.04'
+          image_name: 'ubuntu-24.04'
           deps: 'sudo apt-get install -y ninja-build clang libicu-dev'
           build_type: 'RelWithDebInfo'
           libtype_flag: ''
         Linux.Release:
-          image_name: 'ubuntu-22.04'
+          image_name: 'ubuntu-24.04'
           deps: 'sudo apt-get install -y ninja-build clang libicu-dev'
           build_type: 'Release'
           libtype_flag: ''
-        Ubuntu20.ReleaseWithDebug:
-          image_name: 'ubuntu-20.04'
+        Ubuntu22.ReleaseWithDebug:
+          image_name: 'ubuntu-22.04'
           deps: 'sudo apt-get install -y ninja-build clang libicu-dev'
           build_type: 'RelWithDebInfo'
           libtype_flag: ''
-        Ubuntu20.Release:
-          image_name: 'ubuntu-20.04'
+        Ubuntu22.Release:
+          image_name: 'ubuntu-22.04'
           deps: 'sudo apt-get install -y ninja-build clang libicu-dev'
           build_type: 'Release'
           libtype_flag: ''

diff --git a/bin/ChakraCore/ChakraCoreDllFunc.cpp b/bin/ChakraCore/ChakraCoreDllFunc.cpp
@@ -1,5 +1,6 @@
 //-------------------------------------------------------------------------------------------------------
 // Copyright (C) Microsoft. All rights reserved.
+// Copyright (c) ChakraCore Project Contributors. All rights reserved.
 // Licensed under the MIT license. See LICENSE.txt file in the project root for full license information.
 //-------------------------------------------------------------------------------------------------------
 #include "Runtime.h"
@@ -174,7 +175,7 @@ void ChakraBinaryAutoSystemInfoInit(AutoSystemInfo * autoSystemInfo)
 
 #if !ENABLE_NATIVE_CODEGEN
 HRESULT JsInitializeJITServer(
-    __in GUID* connectionUuid,
+    _In_ GUID* connectionUuid,
     __in_opt void* securityDescriptor,
     __in_opt void* alpcSecurityDescriptor)
 {

diff --git a/bin/ChakraCore/ConfigParserExternals.cpp b/bin/ChakraCore/ConfigParserExternals.cpp
@@ -1,16 +1,17 @@
 //-------------------------------------------------------------------------------------------------------
 // Copyright (C) Microsoft. All rights reserved.
+// Copyright (c) ChakraCore Project Contributors. All rights reserved.
 // Licensed under the MIT license. See LICENSE.txt file in the project root for full license information.
 //-------------------------------------------------------------------------------------------------------
 #include "Common.h"
 #include "Core/ConfigParser.h"
 
-bool ConfigParserAPI::FillConsoleTitle(__ecount(cchBufferSize) LPWSTR buffer, size_t cchBufferSize, __in LPWSTR moduleName)
+bool ConfigParserAPI::FillConsoleTitle(__ecount(cchBufferSize) LPWSTR buffer, size_t cchBufferSize, _In_ LPWSTR moduleName)
 {
     return false;
 }
 
-void ConfigParserAPI::DisplayInitialOutput(__in LPWSTR moduleName)
+void ConfigParserAPI::DisplayInitialOutput(_In_ LPWSTR moduleName)
 {
 }
 

diff --git a/bin/ChakraCore/TestHooks.cpp b/bin/ChakraCore/TestHooks.cpp
@@ -1,5 +1,6 @@
 //-------------------------------------------------------------------------------------------------------
 // Copyright (C) Microsoft. All rights reserved.
+// Copyright (c) ChakraCore Project Contributors. All rights reserved.
 // Licensed under the MIT license. See LICENSE.txt file in the project root for full license information.
 //-------------------------------------------------------------------------------------------------------
 #include "Runtime.h"
@@ -28,7 +29,7 @@ namespace Js
 
 #ifdef ENABLE_TEST_HOOKS
 
-HRESULT __stdcall SetConfigFlags(__in int argc, __in_ecount(argc) LPWSTR argv[], ICustomConfigFlags* customConfigFlags)
+HRESULT __stdcall SetConfigFlags(_In_ int argc, __in_ecount(argc) LPWSTR argv[], ICustomConfigFlags* customConfigFlags)
 {
     CmdLineArgsParser parser(customConfigFlags);
     if (parser.Parse(argc, argv) != 0)
@@ -39,7 +40,7 @@ HRESULT __stdcall SetConfigFlags(__in int argc, __in_ecount(argc) LPWSTR argv[],
     return S_OK;
 }
 
-HRESULT __stdcall SetConfigFile(__in LPWSTR strConfigFile)
+HRESULT __stdcall SetConfigFile(_In_ LPWSTR strConfigFile)
 {
     CmdLineArgsParser parser;
     ConfigParser::ParseCustomConfigFile(parser, strConfigFile);

diff --git a/bin/GCStress/GCStress.h b/bin/GCStress/GCStress.h
@@ -1,5 +1,6 @@
 //-------------------------------------------------------------------------------------------------------
 // Copyright (C) Microsoft. All rights reserved.
+// Copyright (c) ChakraCore Project Contributors. All rights reserved.
 // Licensed under the MIT license. See LICENSE.txt file in the project root for full license information.
 //-------------------------------------------------------------------------------------------------------
 #pragma once
@@ -148,7 +149,7 @@ class Location
                     VerifyCondition(found);
 
                     // Zero pointers in order to eliminate false-positives
-                    memset(holder, 0, heapObject.GetSize());
+                    memset((void*)holder, 0, heapObject.GetSize());
 
                     bool success = heapObject.ClearImplicitRootBit();
                     VerifyCondition(success);

diff --git a/bin/GCStress/StubExternalApi.cpp b/bin/GCStress/StubExternalApi.cpp
@@ -1,20 +1,21 @@
 //-------------------------------------------------------------------------------------------------------
 // Copyright (C) Microsoft. All rights reserved.
+// Copyright (c) ChakraCore Project Contributors. All rights reserved.
 // Licensed under the MIT license. See LICENSE.txt file in the project root for full license information.
 //-------------------------------------------------------------------------------------------------------
 #include "Common.h"
 #include "CommonInl.h" // TODO: Try to remove this later
 
 #include "Core/ConfigParser.h"
 
-bool ConfigParserAPI::FillConsoleTitle(__ecount(cchBufferSize) LPWSTR buffer, size_t cchBufferSize, __in LPWSTR moduleName)
+bool ConfigParserAPI::FillConsoleTitle(__ecount(cchBufferSize) LPWSTR buffer, size_t cchBufferSize, _In_ LPWSTR moduleName)
 {
     swprintf_s(buffer, cchBufferSize, _u("Chakra GC: %lu - %s"), GetCurrentProcessId(), moduleName);
 
     return true;
 }
 
-void ConfigParserAPI::DisplayInitialOutput(__in LPWSTR moduleName)
+void ConfigParserAPI::DisplayInitialOutput(_In_ LPWSTR moduleName)
 {
     Output::Print(_u("Chakra GC\n"));
     Output::Print(_u("INIT: PID        : %d\n"), GetCurrentProcessId());

diff --git a/bin/NativeTests/BigUIntTest.h b/bin/NativeTests/BigUIntTest.h
@@ -1,5 +1,6 @@
 //-------------------------------------------------------------------------------------------------------
 // Copyright (C) Microsoft. All rights reserved.
+// Copyright (c) ChakraCore Project Contributors. All rights reserved.
 // Licensed under the MIT license. See LICENSE.txt file in the project root for full license information.
 //-------------------------------------------------------------------------------------------------------
 
@@ -17,7 +18,7 @@ namespace Js
         Assert(false);
     }
 
-    bool Throw::ReportAssert(__in char const *, unsigned int, __in char const *, __in char const *)
+    bool Throw::ReportAssert(_In_ char const *, unsigned int, _In_ char const *, _In_ char const *)
     {
         return false;
     }

diff --git a/bin/ch/ChakraRtInterface.h b/bin/ch/ChakraRtInterface.h
@@ -1,6 +1,6 @@
 //-------------------------------------------------------------------------------------------------------
 // Copyright (C) Microsoft. All rights reserved.
-// Copyright (c) 2021 ChakraCore Project Contributors. All rights reserved.
+// Copyright (c) ChakraCore Project Contributors. All rights reserved.
 // Licensed under the MIT license. See LICENSE.txt file in the project root for full license information.
 //-------------------------------------------------------------------------------------------------------
 #pragma once
@@ -342,8 +342,8 @@ class ChakraRTInterface
     static void UnloadChakraDll(HINSTANCE library);
 
     static HRESULT SetAssertToConsoleFlag(bool flag) { return CHECKED_CALL(SetAssertToConsoleFlag, flag); }
-    static HRESULT SetConfigFlags(__in int argc, __in_ecount(argc) LPWSTR argv[], ICustomConfigFlags* customConfigFlags) { return CHECKED_CALL(SetConfigFlags, argc, argv, customConfigFlags); }
-    static HRESULT SetConfigFile(__in LPWSTR strConfigFileName) { return CHECKED_CALL(SetConfigFile, strConfigFileName); }
+    static HRESULT SetConfigFlags(_In_ int argc, __in_ecount(argc) LPWSTR argv[], ICustomConfigFlags* customConfigFlags) { return CHECKED_CALL(SetConfigFlags, argc, argv, customConfigFlags); }
+    static HRESULT SetConfigFile(_In_ LPWSTR strConfigFileName) { return CHECKED_CALL(SetConfigFile, strConfigFileName); }
     static HRESULT GetFileNameFlag(BSTR * filename) { return CHECKED_CALL(GetFilenameFlag, filename); }
     static HRESULT PrintConfigFlagsUsageString() { m_usageStringPrinted = true;  return CHECKED_CALL(PrintConfigFlagsUsageString); }
 

diff --git a/bin/ch/Helpers.cpp b/bin/ch/Helpers.cpp
@@ -1,5 +1,6 @@
 //-------------------------------------------------------------------------------------------------------
 // Copyright (C) Microsoft. All rights reserved.
+// Copyright (c) ChakraCore Project Contributors. All rights reserved.
 // Licensed under the MIT license. See LICENSE.txt file in the project root for full license information.
 //-------------------------------------------------------------------------------------------------------
 #include "stdafx.h"
@@ -423,7 +424,7 @@ LPCWSTR Helpers::JsErrorCodeToString(JsErrorCode jsErrorCode)
     }
 }
 
-void Helpers::LogError(__in __nullterminated const char16 *msg, ...)
+void Helpers::LogError(_In_ __nullterminated const char16 *msg, ...)
 {
     va_list args;
     va_start(args, msg);

diff --git a/bin/ch/Helpers.h b/bin/ch/Helpers.h
@@ -1,5 +1,6 @@
 //-------------------------------------------------------------------------------------------------------
 // Copyright (C) Microsoft. All rights reserved.
+// Copyright (c) ChakraCore Project Contributors. All rights reserved.
 // Licensed under the MIT license. See LICENSE.txt file in the project root for full license information.
 //-------------------------------------------------------------------------------------------------------
 #pragma once
@@ -9,7 +10,7 @@ class Helpers
 public :
     static HRESULT LoadScriptFromFile(LPCSTR filename, LPCSTR& contents, UINT* lengthBytesOut = nullptr, std::string* fullPath = nullptr, bool shouldMute = false);
     static LPCWSTR JsErrorCodeToString(JsErrorCode jsErrorCode);
-    static void LogError(__in __nullterminated const char16 *msg, ...);
+    static void LogError(_In_ __nullterminated const char16 *msg, ...);
     static HRESULT LoadBinaryFile(LPCSTR filename, LPCSTR& contents, UINT& lengthBytes, bool printFileOpenError = true);
 
     static void TTReportLastIOErrorAsNeeded(BOOL ok, const char* msg);

diff --git a/bin/ch/WScriptJsrt.cpp b/bin/ch/WScriptJsrt.cpp
@@ -2102,7 +2102,7 @@ JsErrorCode WScriptJsrt::ReportModuleCompletionCallback(JsModuleRecord module, J
 }
 
 JsErrorCode WScriptJsrt::FetchImportedModuleHelper(JsModuleRecord referencingModule,
-    JsValueRef specifier, __out JsModuleRecord* dependentModuleRecord, LPCSTR refdir)
+    JsValueRef specifier, _Out_ JsModuleRecord* dependentModuleRecord, LPCSTR refdir)
 {
     JsModuleRecord moduleRecord = JS_INVALID_REFERENCE;
     AutoString specifierStr;

diff --git a/bin/ch/WScriptJsrt.h b/bin/ch/WScriptJsrt.h
@@ -1,6 +1,6 @@
 //-------------------------------------------------------------------------------------------------------
 // Copyright (C) Microsoft Corporation and contributors. All rights reserved.
-// Copyright (c) 2021 ChakraCore Project Contributors. All rights reserved.
+// Copyright (c) ChakraCore Project Contributors. All rights reserved.
 // Licensed under the MIT license. See LICENSE.txt file in the project root for full license information.
 //-------------------------------------------------------------------------------------------------------
 #pragma once
@@ -149,7 +149,7 @@ class WScriptJsrt
     static JsValueRef CALLBACK SerializeObject(JsValueRef callee, bool isConstructCall, JsValueRef *arguments, unsigned short argumentCount, void *callbackState);
     static JsValueRef CALLBACK Deserialize(JsValueRef callee, bool isConstructCall, JsValueRef *arguments, unsigned short argumentCount, void *callbackState);
 
-    static JsErrorCode FetchImportedModuleHelper(JsModuleRecord referencingModule, JsValueRef specifier, __out JsModuleRecord* dependentModuleRecord, LPCSTR refdir = nullptr);
+    static JsErrorCode FetchImportedModuleHelper(JsModuleRecord referencingModule, JsValueRef specifier, _Out_ JsModuleRecord* dependentModuleRecord, LPCSTR refdir = nullptr);
 
     static MessageQueue *messageQueue;
     static DWORD_PTR sourceContext;

diff --git a/bin/rl/rl.cpp b/bin/rl/rl.cpp
@@ -1,5 +1,6 @@
 //-------------------------------------------------------------------------------------------------------
 // Copyright (C) Microsoft. All rights reserved.
+// Copyright (c) ChakraCore Project Contributors. All rights reserved.
 // Licensed under the MIT license. See LICENSE.txt file in the project root for full license information.
 //-------------------------------------------------------------------------------------------------------
 // rl.cpp
@@ -4345,7 +4346,7 @@ ProcessConfig
       // Get the defaults from the default node.
 
       TestInfo testInfo;
-      memset(&testInfo, 0, sizeof(TestInfo));
+      memset((void*)&testInfo, 0, sizeof(TestInfo));
 
       if (!GetTestInfoFromNode(CfgFile, defaultNode, &testInfo))
       {

diff --git a/bin/rl/rl.h b/bin/rl/rl.h
@@ -1,5 +1,6 @@
 //-------------------------------------------------------------------------------------------------------
 // Copyright (C) Microsoft. All rights reserved.
+// Copyright (c) ChakraCore Project Contributors. All rights reserved.
 // Licensed under the MIT license. See LICENSE.txt file in the project root for full license information.
 //-------------------------------------------------------------------------------------------------------
 // rl.h
@@ -472,7 +473,7 @@ class WorkQueue {
         /*
          * Create the semaphores for the work lists
          */
-        memset(&sa, 0, sizeof(sa));
+        memset((void*)&sa, 0, sizeof(sa));
         sa.nLength = sizeof(sa);
         sa.lpSecurityDescriptor = NULL;
         sa.bInheritHandle = TRUE;

diff --git a/bin/rl/rlfeint.cpp b/bin/rl/rlfeint.cpp
@@ -1,5 +1,6 @@
 //-------------------------------------------------------------------------------------------------------
 // Copyright (C) Microsoft. All rights reserved.
+// Copyright (c) ChakraCore Project Contributors. All rights reserved.
 // Licensed under the MIT license. See LICENSE.txt file in the project root for full license information.
 //-------------------------------------------------------------------------------------------------------
 #undef UNICODE
@@ -73,7 +74,7 @@ SpawnRLFE(
     if (NULStdout == INVALID_HANDLE_VALUE)
         goto cleanup;
 
-    memset(&si, 0, sizeof(si));
+    memset((void*)&si, 0, sizeof(si));
     si.cb = sizeof(si);
     si.dwFlags = STARTF_USESTDHANDLES;
     si.hStdOutput = NULStdout;

diff --git a/bin/rl/rlmp.cpp b/bin/rl/rlmp.cpp
@@ -1,5 +1,6 @@
 //-------------------------------------------------------------------------------------------------------
 // Copyright (C) Microsoft. All rights reserved.
+// Copyright (c) ChakraCore Project Contributors. All rights reserved.
 // Licensed under the MIT license. See LICENSE.txt file in the project root for full license information.
 //-------------------------------------------------------------------------------------------------------
 //
@@ -823,14 +824,14 @@ PipeSpawn(
         return NULL;
     }
 
-    memset(&StartupInfo, 0, sizeof(STARTUPINFO));
+    memset((void*)&StartupInfo, 0, sizeof(STARTUPINFO));
     StartupInfo.cb = sizeof(STARTUPINFO);
     StartupInfo.hStdOutput = WriteHandle;
     StartupInfo.hStdError = ErrorHandle;
     StartupInfo.hStdInput = GetStdHandle(STD_INPUT_HANDLE);
     StartupInfo.dwFlags = STARTF_USESTDHANDLES;
 
-    memset(&ProcessInformation, 0, sizeof(PROCESS_INFORMATION));
+    memset((void*)&ProcessInformation, 0, sizeof(PROCESS_INFORMATION));
     ProcessInformation.hThread  = INVALID_HANDLE_VALUE;
     ProcessInformation.hProcess = INVALID_HANDLE_VALUE;
 

diff --git a/lib/Backend/CodeGenNumberAllocator.cpp b/lib/Backend/CodeGenNumberAllocator.cpp
@@ -1,5 +1,6 @@
 //-------------------------------------------------------------------------------------------------------
 // Copyright (C) Microsoft. All rights reserved.
+// Copyright (c) ChakraCore Project Contributors. All rights reserved.
 // Licensed under the MIT license. See LICENSE.txt file in the project root for full license information.
 //-------------------------------------------------------------------------------------------------------
 #include "Backend.h"
@@ -396,7 +397,7 @@ Js::JavascriptNumber* XProcNumberPageSegmentImpl::AllocateNumber(Func* func, dou
 
 XProcNumberPageSegmentImpl::XProcNumberPageSegmentImpl()
 {
-    memset(this, 0, sizeof(XProcNumberPageSegment));
+    memset((void*)this, 0, sizeof(XProcNumberPageSegment));
 }
 
 void XProcNumberPageSegmentImpl::Initialize(bool recyclerVerifyEnabled, uint recyclerVerifyPad)

diff --git a/lib/Backend/EmitBuffer.cpp b/lib/Backend/EmitBuffer.cpp
@@ -1,5 +1,6 @@
 //-------------------------------------------------------------------------------------------------------
 // Copyright (C) Microsoft. All rights reserved.
+// Copyright (c) ChakraCore Project Contributors. All rights reserved.
 // Licensed under the MIT license. See LICENSE.txt file in the project root for full license information.
 //-------------------------------------------------------------------------------------------------------
 #include "Backend.h"
@@ -101,7 +102,7 @@ EmitBufferManager<TAlloc, TPreReservedAlloc, SyncObject>::FreeAllocations(bool r
 }
 
 template <typename TAlloc, typename TPreReservedAlloc, class SyncObject>
-bool EmitBufferManager<TAlloc, TPreReservedAlloc, SyncObject>::IsInHeap(__in void* address)
+bool EmitBufferManager<TAlloc, TPreReservedAlloc, SyncObject>::IsInHeap(_In_ void* address)
 {
     AutoRealOrFakeCriticalSection<SyncObject> autocs(&this->criticalSection);
     return this->allocationHeap.IsInHeap(address);
@@ -319,7 +320,7 @@ bool EmitBufferManager<TAlloc, TPreReservedAlloc, SyncObject>::FinalizeAllocatio
 
 template <typename TAlloc, typename TPreReservedAlloc, class SyncObject>
 EmitBufferAllocation<TAlloc, TPreReservedAlloc>*
-EmitBufferManager<TAlloc, TPreReservedAlloc, SyncObject>::GetBuffer(TEmitBufferAllocation *allocation, __in size_t bytes, __deref_bcount(bytes) BYTE** ppBuffer)
+EmitBufferManager<TAlloc, TPreReservedAlloc, SyncObject>::GetBuffer(TEmitBufferAllocation *allocation, _In_ size_t bytes, __deref_bcount(bytes) BYTE** ppBuffer)
 {
     Assert(this->criticalSection.IsLocked());
 
@@ -345,7 +346,7 @@ EmitBufferManager<TAlloc, TPreReservedAlloc, SyncObject>::GetBuffer(TEmitBufferA
 //----------------------------------------------------------------------------
 template <typename TAlloc, typename TPreReservedAlloc, class SyncObject>
 EmitBufferAllocation<TAlloc, TPreReservedAlloc>*
-EmitBufferManager<TAlloc, TPreReservedAlloc, SyncObject>::AllocateBuffer(__in size_t bytes, __deref_bcount(bytes) BYTE** ppBuffer, ushort pdataCount /*=0*/, ushort xdataSize  /*=0*/, bool canAllocInPreReservedHeapPageSegment /*=false*/,
+EmitBufferManager<TAlloc, TPreReservedAlloc, SyncObject>::AllocateBuffer(_In_ size_t bytes, __deref_bcount(bytes) BYTE** ppBuffer, ushort pdataCount /*=0*/, ushort xdataSize  /*=0*/, bool canAllocInPreReservedHeapPageSegment /*=false*/,
     bool isAnyJittedCode /* = false*/)
 {
     AutoRealOrFakeCriticalSection<SyncObject> autoCs(&this->criticalSection);
@@ -456,7 +457,7 @@ bool EmitBufferManager<TAlloc, TPreReservedAlloc, SyncObject>::CommitBufferForIn
 //----------------------------------------------------------------------------
 template <typename TAlloc, typename TPreReservedAlloc, class SyncObject>
 bool
-EmitBufferManager<TAlloc, TPreReservedAlloc, SyncObject>::CommitBuffer(TEmitBufferAllocation* allocation, __in const size_t destBufferBytes, __out_bcount(destBufferBytes) BYTE* destBuffer, __in size_t bytes, __in_bcount(bytes) const BYTE* sourceBuffer, __in DWORD alignPad)
+EmitBufferManager<TAlloc, TPreReservedAlloc, SyncObject>::CommitBuffer(TEmitBufferAllocation* allocation, _In_ const size_t destBufferBytes, __out_bcount(destBufferBytes) BYTE* destBuffer, _In_ size_t bytes, __in_bcount(bytes) const BYTE* sourceBuffer, _In_ DWORD alignPad)
 {
     AutoRealOrFakeCriticalSection<SyncObject> autoCs(&this->criticalSection);