[manual] Merge release/8.0-staging into release/8.0

NuGet.config

@@ -10,11 +10,9 @@
     <!--Begin: Package sources managed by Dependency Flow automation. Do not edit the sources below.-->
     <!--  Begin: Package sources from dotnet-emsdk -->
     <add key="darc-pub-dotnet-emsdk-c458a76" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/darc-pub-dotnet-emsdk-c458a764/nuget/v3/index.json" />
-    <add key="darc-pub-dotnet-emsdk-f623714" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/darc-pub-dotnet-emsdk-f6237140/nuget/v3/index.json" />
-    <add key="darc-pub-dotnet-emsdk-f623714-4" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/darc-pub-dotnet-emsdk-f6237140-4/nuget/v3/index.json" />
-    <add key="darc-pub-dotnet-emsdk-f623714-3" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/darc-pub-dotnet-emsdk-f6237140-3/nuget/v3/index.json" />
-    <add key="darc-pub-dotnet-emsdk-f623714-2" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/darc-pub-dotnet-emsdk-f6237140-2/nuget/v3/index.json" />
-    <add key="darc-pub-dotnet-emsdk-f623714-1" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/darc-pub-dotnet-emsdk-f6237140-1/nuget/v3/index.json" />
+    <add key="darc-pub-dotnet-emsdk-c458a76-3" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/darc-pub-dotnet-emsdk-c458a764-3/nuget/v3/index.json" />
+    <add key="darc-pub-dotnet-emsdk-c458a76-2" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/darc-pub-dotnet-emsdk-c458a764-2/nuget/v3/index.json" />
+    <add key="darc-pub-dotnet-emsdk-c458a76-1" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/darc-pub-dotnet-emsdk-c458a764-1/nuget/v3/index.json" />
     <!--  End: Package sources from dotnet-emsdk -->
     <!--  Begin: Package sources from dotnet-sdk -->
     <!--  End: Package sources from dotnet-sdk -->

eng/Version.Details.xml

@@ -99,14 +99,14 @@
       <Sha>c458a7647c04e323c238f381eb176af24254b3ff</Sha>
       <SourceBuild RepoName="emsdk" ManagedOnly="true" />
     </Dependency>
-    <Dependency Name="Microsoft.SourceBuild.Intermediate.source-build-reference-packages" Version="8.0.0-alpha.1.24415.1">
+    <Dependency Name="Microsoft.SourceBuild.Intermediate.source-build-reference-packages" Version="8.0.0-alpha.1.25060.2">
       <Uri>https://github.com/dotnet/source-build-reference-packages</Uri>
-      <Sha>fe3794a68bd668d36d4d5014a9e6c9d22c0e6d86</Sha>
+      <Sha>f9542c50beaefc38dd9d7ec9ea38d54fd154f21a</Sha>
       <SourceBuild RepoName="source-build-reference-packages" ManagedOnly="true" />
     </Dependency>
-    <Dependency Name="Microsoft.SourceBuild.Intermediate.source-build-externals" Version="8.0.0-alpha.1.24516.2">
+    <Dependency Name="Microsoft.SourceBuild.Intermediate.source-build-externals" Version="8.0.0-alpha.1.25060.2">
       <Uri>https://github.com/dotnet/source-build-externals</Uri>
-      <Sha>3b85d089311e89b47758ba6a84eeb79374476dc8</Sha>
+      <Sha>c7cb4da26e74ef645e3e98fcb4534a7d66247a82</Sha>
       <SourceBuild RepoName="source-build-externals" ManagedOnly="true" />
     </Dependency>
   </ProductDependencies>
@@ -354,9 +354,9 @@
       <Uri>https://dev.azure.com/dnceng/internal/_git/dotnet-optimization</Uri>
       <Sha>67613417f5e1af250e6ddfba79f8f2885d8e90fb</Sha>
     </Dependency>
-    <Dependency Name="Microsoft.DotNet.HotReload.Utils.Generator.BuildTool" Version="8.0.0-alpha.0.24530.1">
+    <Dependency Name="Microsoft.DotNet.HotReload.Utils.Generator.BuildTool" Version="8.0.0-alpha.0.25063.2">
       <Uri>https://github.com/dotnet/hotreload-utils</Uri>
-      <Sha>b1aa9c34c5eaaf5a71b9b54db6978230fae4eb36</Sha>
+      <Sha>a07c4f8a8393191ab5b65f4a3b4546ed1cbd8cdf</Sha>
     </Dependency>
     <Dependency Name="System.Runtime.Numerics.TestData" Version="8.0.0-beta.24517.1">
       <Uri>https://github.com/dotnet/runtime-assets</Uri>

eng/Versions.props

@@ -188,7 +188,7 @@
     <MicrosoftDotNetXHarnessTestRunnersCommonVersion>8.0.0-prerelease.24510.2</MicrosoftDotNetXHarnessTestRunnersCommonVersion>
     <MicrosoftDotNetXHarnessTestRunnersXunitVersion>8.0.0-prerelease.24510.2</MicrosoftDotNetXHarnessTestRunnersXunitVersion>
     <MicrosoftDotNetXHarnessCLIVersion>8.0.0-prerelease.24510.2</MicrosoftDotNetXHarnessCLIVersion>
-    <MicrosoftDotNetHotReloadUtilsGeneratorBuildToolVersion>8.0.0-alpha.0.24530.1</MicrosoftDotNetHotReloadUtilsGeneratorBuildToolVersion>
+    <MicrosoftDotNetHotReloadUtilsGeneratorBuildToolVersion>8.0.0-alpha.0.25063.2</MicrosoftDotNetHotReloadUtilsGeneratorBuildToolVersion>
     <XUnitVersion>2.4.2</XUnitVersion>
     <XUnitAnalyzersVersion>1.0.0</XUnitAnalyzersVersion>
     <XUnitRunnerVisualStudioVersion>2.4.5</XUnitRunnerVisualStudioVersion>

eng/common/cross/toolchain.cmake

@@ -40,7 +40,7 @@ if(TARGET_ARCH_NAME STREQUAL "arm")
     set(TOOLCHAIN "arm-linux-gnueabihf")
   endif()
   if(TIZEN)
-    set(TIZEN_TOOLCHAIN "armv7hl-tizen-linux-gnueabihf/9.2.0")
+    set(TIZEN_TOOLCHAIN "armv7hl-tizen-linux-gnueabihf")
   endif()
 elseif(TARGET_ARCH_NAME STREQUAL "arm64")
   set(CMAKE_SYSTEM_PROCESSOR aarch64)
@@ -49,7 +49,7 @@ elseif(TARGET_ARCH_NAME STREQUAL "arm64")
   elseif(LINUX)
     set(TOOLCHAIN "aarch64-linux-gnu")
     if(TIZEN)
-      set(TIZEN_TOOLCHAIN "aarch64-tizen-linux-gnu/9.2.0")
+      set(TIZEN_TOOLCHAIN "aarch64-tizen-linux-gnu")
     endif()
   elseif(FREEBSD)
     set(triple "aarch64-unknown-freebsd12")
@@ -58,7 +58,7 @@ elseif(TARGET_ARCH_NAME STREQUAL "armel")
   set(CMAKE_SYSTEM_PROCESSOR armv7l)
   set(TOOLCHAIN "arm-linux-gnueabi")
   if(TIZEN)
-    set(TIZEN_TOOLCHAIN "armv7l-tizen-linux-gnueabi/9.2.0")
+    set(TIZEN_TOOLCHAIN "armv7l-tizen-linux-gnueabi")
   endif()
 elseif(TARGET_ARCH_NAME STREQUAL "armv6")
   set(CMAKE_SYSTEM_PROCESSOR armv6l)
@@ -95,7 +95,7 @@ elseif(TARGET_ARCH_NAME STREQUAL "x64")
   elseif(LINUX)
     set(TOOLCHAIN "x86_64-linux-gnu")
     if(TIZEN)
-      set(TIZEN_TOOLCHAIN "x86_64-tizen-linux-gnu/9.2.0")
+      set(TIZEN_TOOLCHAIN "x86_64-tizen-linux-gnu")
     endif()
   elseif(FREEBSD)
     set(triple "x86_64-unknown-freebsd12")
@@ -112,7 +112,7 @@ elseif(TARGET_ARCH_NAME STREQUAL "x86")
     set(TOOLCHAIN "i686-linux-gnu")
   endif()
   if(TIZEN)
-    set(TIZEN_TOOLCHAIN "i586-tizen-linux-gnu/9.2.0")
+    set(TIZEN_TOOLCHAIN "i586-tizen-linux-gnu")
   endif()
 else()
   message(FATAL_ERROR "Arch is ${TARGET_ARCH_NAME}. Only arm, arm64, armel, armv6, ppc64le, riscv64, s390x, x64 and x86 are supported!")
@@ -124,26 +124,25 @@ endif()
 
 # Specify include paths
 if(TIZEN)
-  if(TARGET_ARCH_NAME STREQUAL "arm")
-    include_directories(SYSTEM ${CROSS_ROOTFS}/usr/lib/gcc/${TIZEN_TOOLCHAIN}/include/c++/)
-    include_directories(SYSTEM ${CROSS_ROOTFS}/usr/lib/gcc/${TIZEN_TOOLCHAIN}/include/c++/armv7hl-tizen-linux-gnueabihf)
-  endif()
-  if(TARGET_ARCH_NAME STREQUAL "armel")
-    include_directories(SYSTEM ${CROSS_ROOTFS}/usr/lib/gcc/${TIZEN_TOOLCHAIN}/include/c++/)
-    include_directories(SYSTEM ${CROSS_ROOTFS}/usr/lib/gcc/${TIZEN_TOOLCHAIN}/include/c++/armv7l-tizen-linux-gnueabi)
-  endif()
-  if(TARGET_ARCH_NAME STREQUAL "arm64")
-    include_directories(SYSTEM ${CROSS_ROOTFS}/usr/lib64/gcc/${TIZEN_TOOLCHAIN}/include/c++/)
-    include_directories(SYSTEM ${CROSS_ROOTFS}/usr/lib64/gcc/${TIZEN_TOOLCHAIN}/include/c++/aarch64-tizen-linux-gnu)
-  endif()
-  if(TARGET_ARCH_NAME STREQUAL "x86")
-    include_directories(SYSTEM ${CROSS_ROOTFS}/usr/lib/gcc/${TIZEN_TOOLCHAIN}/include/c++/)
-    include_directories(SYSTEM ${CROSS_ROOTFS}/usr/lib/gcc/${TIZEN_TOOLCHAIN}/include/c++/i586-tizen-linux-gnu)
-  endif()
-  if(TARGET_ARCH_NAME STREQUAL "x64")
-    include_directories(SYSTEM ${CROSS_ROOTFS}/usr/lib64/gcc/${TIZEN_TOOLCHAIN}/include/c++/)
-    include_directories(SYSTEM ${CROSS_ROOTFS}/usr/lib64/gcc/${TIZEN_TOOLCHAIN}/include/c++/x86_64-tizen-linux-gnu)
+  function(find_toolchain_dir prefix)
+    # Dynamically find the version subdirectory
+    file(GLOB DIRECTORIES "${prefix}/*")
+    list(GET DIRECTORIES 0 FIRST_MATCH)
+    get_filename_component(TOOLCHAIN_VERSION ${FIRST_MATCH} NAME)
+
+    set(TIZEN_TOOLCHAIN_PATH "${prefix}/${TOOLCHAIN_VERSION}" PARENT_SCOPE)
+  endfunction()
+
+  if(TARGET_ARCH_NAME MATCHES "^(arm|armel|x86)$")
+    find_toolchain_dir("${CROSS_ROOTFS}/usr/lib/gcc/${TIZEN_TOOLCHAIN}")
+  else()
+    find_toolchain_dir("${CROSS_ROOTFS}/usr/lib64/gcc/${TIZEN_TOOLCHAIN}")
   endif()
+
+  message(STATUS "TIZEN_TOOLCHAIN_PATH set to: ${TIZEN_TOOLCHAIN_PATH}")
+
+  include_directories(SYSTEM ${TIZEN_TOOLCHAIN_PATH}/include/c++)
+  include_directories(SYSTEM ${TIZEN_TOOLCHAIN_PATH}/include/c++/${TIZEN_TOOLCHAIN})
 endif()
 
 if(ANDROID)
@@ -265,21 +264,21 @@ endif()
 
 if(TARGET_ARCH_NAME MATCHES "^(arm|armel)$")
   if(TIZEN)
-    add_toolchain_linker_flag("-B${CROSS_ROOTFS}/usr/lib/gcc/${TIZEN_TOOLCHAIN}")
+    add_toolchain_linker_flag("-B${TIZEN_TOOLCHAIN_PATH}")
     add_toolchain_linker_flag("-L${CROSS_ROOTFS}/lib")
     add_toolchain_linker_flag("-L${CROSS_ROOTFS}/usr/lib")
-    add_toolchain_linker_flag("-L${CROSS_ROOTFS}/usr/lib/gcc/${TIZEN_TOOLCHAIN}")
+    add_toolchain_linker_flag("-L${TIZEN_TOOLCHAIN_PATH}")
   endif()
 elseif(TARGET_ARCH_NAME MATCHES "^(arm64|x64)$")
   if(TIZEN)
-    add_toolchain_linker_flag("-B${CROSS_ROOTFS}/usr/lib64/gcc/${TIZEN_TOOLCHAIN}")
+    add_toolchain_linker_flag("-B${TIZEN_TOOLCHAIN_PATH}")
     add_toolchain_linker_flag("-L${CROSS_ROOTFS}/lib64")
     add_toolchain_linker_flag("-L${CROSS_ROOTFS}/usr/lib64")
-    add_toolchain_linker_flag("-L${CROSS_ROOTFS}/usr/lib64/gcc/${TIZEN_TOOLCHAIN}")
+    add_toolchain_linker_flag("-L${TIZEN_TOOLCHAIN_PATH}")
 
     add_toolchain_linker_flag("-Wl,--rpath-link=${CROSS_ROOTFS}/lib64")
     add_toolchain_linker_flag("-Wl,--rpath-link=${CROSS_ROOTFS}/usr/lib64")
-    add_toolchain_linker_flag("-Wl,--rpath-link=${CROSS_ROOTFS}/usr/lib64/gcc/${TIZEN_TOOLCHAIN}")
+    add_toolchain_linker_flag("-Wl,--rpath-link=${TIZEN_TOOLCHAIN_PATH}")
   endif()
 elseif(TARGET_ARCH_NAME STREQUAL "x86")
   if(EXISTS ${CROSS_ROOTFS}/usr/lib/gcc/i586-alpine-linux-musl)
@@ -288,10 +287,10 @@ elseif(TARGET_ARCH_NAME STREQUAL "x86")
   endif()
   add_toolchain_linker_flag(-m32)
   if(TIZEN)
-    add_toolchain_linker_flag("-B${CROSS_ROOTFS}/usr/lib/gcc/${TIZEN_TOOLCHAIN}")
+    add_toolchain_linker_flag("-B${TIZEN_TOOLCHAIN_PATH}")
     add_toolchain_linker_flag("-L${CROSS_ROOTFS}/lib")
     add_toolchain_linker_flag("-L${CROSS_ROOTFS}/usr/lib")
-    add_toolchain_linker_flag("-L${CROSS_ROOTFS}/usr/lib/gcc/${TIZEN_TOOLCHAIN}")
+    add_toolchain_linker_flag("-L${TIZEN_TOOLCHAIN_PATH}")
   endif()
 elseif(ILLUMOS)
   add_toolchain_linker_flag("-L${CROSS_ROOTFS}/lib/amd64")

eng/pipelines/coreclr/templates/helix-queues-setup.yml

@@ -79,23 +79,23 @@ jobs:
     # Linux musl x64
     - ${{ if eq(parameters.platform, 'linux_musl_x64') }}:
       - ${{ if eq(variables['System.TeamProject'], 'public') }}:
-        - (Alpine.318.Amd64.Open)Ubuntu.2204.Amd64.Open@mcr.microsoft.com/dotnet-buildtools/prereqs:alpine-3.18-helix-amd64
+        - (Alpine.321.Amd64.Open)Ubuntu.2204.Amd64.Open@mcr.microsoft.com/dotnet-buildtools/prereqs:alpine-3.21-helix-amd64
       - ${{ if eq(variables['System.TeamProject'], 'internal') }}:
-        - (Alpine.318.Amd64)Ubuntu.2204.Amd64@mcr.microsoft.com/dotnet-buildtools/prereqs:alpine-3.18-helix-amd64
+        - (Alpine.321.Amd64)Ubuntu.2204.Amd64@mcr.microsoft.com/dotnet-buildtools/prereqs:alpine-3.21-helix-amd64
 
     # Linux musl arm32
     - ${{ if eq(parameters.platform, 'linux_musl_arm') }}:
       - ${{ if eq(variables['System.TeamProject'], 'public') }}:
-        - (Alpine.318.Arm32.Open)Ubuntu.2204.ArmArch.Open@mcr.microsoft.com/dotnet-buildtools/prereqs:alpine-3.18-helix-arm32v7
+        - (Alpine.321.Arm32.Open)Ubuntu.2204.ArmArch.Open@mcr.microsoft.com/dotnet-buildtools/prereqs:alpine-3.21-helix-arm32v7
       - ${{ if eq(variables['System.TeamProject'], 'internal') }}:
-        - (Alpine.318.Arm32)Ubuntu.2204.ArmArch@mcr.microsoft.com/dotnet-buildtools/prereqs:alpine-3.18-helix-arm32v7
+        - (Alpine.321.Arm32)Ubuntu.2204.ArmArch@mcr.microsoft.com/dotnet-buildtools/prereqs:alpine-3.21-helix-arm32v7
 
     # Linux musl arm64
     - ${{ if eq(parameters.platform, 'linux_musl_arm64') }}:
       - ${{ if eq(variables['System.TeamProject'], 'public') }}:
-        - (Alpine.318.Arm64.Open)Ubuntu.2204.ArmArch.Open@mcr.microsoft.com/dotnet-buildtools/prereqs:alpine-3.18-helix-arm64v8
+        - (Alpine.320.Arm64.Open)Ubuntu.2204.ArmArch.Open@mcr.microsoft.com/dotnet-buildtools/prereqs:alpine-3.20-helix-arm64v8
       - ${{ if eq(variables['System.TeamProject'], 'internal') }}:
-        - (Alpine.318.Arm64)Ubuntu.2204.ArmArch@mcr.microsoft.com/dotnet-buildtools/prereqs:alpine-3.18-helix-arm64v8
+        - (Alpine.320.Arm64)Ubuntu.2204.ArmArch@mcr.microsoft.com/dotnet-buildtools/prereqs:alpine-3.20-helix-arm64v8
 
     # Linux x64
     - ${{ if eq(parameters.platform, 'linux_x64') }}:

eng/pipelines/libraries/helix-queues-setup.yml

@@ -47,28 +47,27 @@ jobs:
     # Linux musl x64
     - ${{ if eq(parameters.platform, 'linux_musl_x64') }}:
       - ${{ if or(ne(parameters.jobParameters.isExtraPlatforms, true), eq(parameters.jobParameters.includeAllPlatforms, true)) }}:
-        - (Alpine.318.Amd64.Open)Ubuntu.2204.Amd64.Open@mcr.microsoft.com/dotnet-buildtools/prereqs:alpine-3.18-helix-amd64
+        - (Alpine.321.Amd64.Open)Ubuntu.2204.Amd64.Open@mcr.microsoft.com/dotnet-buildtools/prereqs:alpine-3.21-helix-amd64
       - ${{ if or(eq(parameters.jobParameters.isExtraPlatforms, true), eq(parameters.jobParameters.includeAllPlatforms, true)) }}:
-        - (Alpine.318.Amd64.Open)Ubuntu.2204.Amd64.Open@mcr.microsoft.com/dotnet-buildtools/prereqs:alpine-3.18-helix-amd64
+        - (Alpine.321.Amd64.Open)Ubuntu.2204.Amd64.Open@mcr.microsoft.com/dotnet-buildtools/prereqs:alpine-3.21-helix-amd64
 
     # Linux musl arm64
     - ${{ if and(eq(parameters.platform, 'linux_musl_arm64'), or(eq(parameters.jobParameters.isExtraPlatforms, true), eq(parameters.jobParameters.includeAllPlatforms, true))) }}:
-      - (Alpine.318.Arm64.Open)ubuntu.2204.armarch.open@mcr.microsoft.com/dotnet-buildtools/prereqs:alpine-3.18-helix-arm64v8
-      - (Alpine.319.Arm64.Open)ubuntu.2204.armarch.open@mcr.microsoft.com/dotnet-buildtools/prereqs:alpine-3.19-helix-arm64v8
+      - (Alpine.320.Arm64.Open)ubuntu.2204.armarch.open@mcr.microsoft.com/dotnet-buildtools/prereqs:alpine-3.20-helix-arm64v8
 
     # Linux x64
     - ${{ if eq(parameters.platform, 'linux_x64') }}:
       - ${{ if and(eq(parameters.jobParameters.interpreter, ''), ne(parameters.jobParameters.isSingleFile, true)) }}:
         - ${{ if and(eq(parameters.jobParameters.testScope, 'outerloop'), eq(parameters.jobParameters.runtimeFlavor, 'mono')) }}:
           - SLES.15.Amd64.Open
           - (Centos.9.Amd64.Open)Ubuntu.2204.Amd64.Open@mcr.microsoft.com/dotnet-buildtools/prereqs:centos-stream9-helix
-          - (Fedora.38.Amd64.Open)Ubuntu.2204.Amd64.Open@mcr.microsoft.com/dotnet-buildtools/prereqs:fedora-38-helix
+          - (Fedora.41.Amd64.Open)Ubuntu.2204.Amd64.Open@mcr.microsoft.com/dotnet-buildtools/prereqs:fedora-41-helix
           - (Ubuntu.2204.Amd64.Open)Ubuntu.2204.Amd64.Open@mcr.microsoft.com/dotnet-buildtools/prereqs:ubuntu-22.04-helix-amd64
           - (Debian.12.Amd64.Open)Ubuntu.2204.Amd64.Open@mcr.microsoft.com/dotnet-buildtools/prereqs:debian-12-helix-amd64
         - ${{ if or(ne(parameters.jobParameters.testScope, 'outerloop'), ne(parameters.jobParameters.runtimeFlavor, 'mono')) }}:
           - ${{ if or(eq(parameters.jobParameters.isExtraPlatforms, true), eq(parameters.jobParameters.includeAllPlatforms, true)) }}:
             - SLES.15.Amd64.Open
-            - (Fedora.38.Amd64.Open)Ubuntu.2204.amd64.open@mcr.microsoft.com/dotnet-buildtools/prereqs:fedora-38-helix
+            - (Fedora.41.Amd64.Open)Ubuntu.2204.amd64.open@mcr.microsoft.com/dotnet-buildtools/prereqs:fedora-41-helix
             - Ubuntu.2204.Amd64.Open
             - (Debian.12.Amd64.Open)Ubuntu.2204.Amd64.Open@mcr.microsoft.com/dotnet-buildtools/prereqs:debian-12-helix-amd64
             - (Mariner.2.0.Amd64.Open)Ubuntu.2204.amd64.open@mcr.microsoft.com/dotnet-buildtools/prereqs:cbl-mariner-2.0-helix-amd64

src/coreclr/debug/ee/controller.cpp

@@ -25,6 +25,11 @@ const char *GetTType( TraceType tt);
 
 #define IsSingleStep(exception) ((exception) == EXCEPTION_SINGLE_STEP)
 
+typedef enum __TailCallFunctionType {
+    TailCallThatReturns = 1,
+    StoreTailCallArgs = 2
+} TailCallFunctionType;
+
 // -------------------------------------------------------------------------
 //  DebuggerController routines
 // -------------------------------------------------------------------------
@@ -5636,10 +5641,10 @@ static bool IsTailCallJitHelper(const BYTE * ip)
 // control flow will be a little peculiar in that the function will return
 // immediately, so we need special handling in the debugger for it. This
 // function detects that case to be used for those scenarios.
-static bool IsTailCallThatReturns(const BYTE * ip, ControllerStackInfo* info)
+static bool IsTailCall(const BYTE * ip, ControllerStackInfo* info, TailCallFunctionType type)
 {
     MethodDesc* pTailCallDispatcherMD = TailCallHelp::GetTailCallDispatcherMD();
-    if (pTailCallDispatcherMD == NULL)
+    if (pTailCallDispatcherMD == NULL && type == TailCallFunctionType::TailCallThatReturns)
     {
         return false;
     }
@@ -5655,6 +5660,11 @@ static bool IsTailCallThatReturns(const BYTE * ip, ControllerStackInfo* info)
         ? trace.GetMethodDesc()
         : g_pEEInterface->GetNativeCodeMethodDesc(trace.GetAddress());
 
+    if (type == TailCallFunctionType::StoreTailCallArgs)
+    {
+        return (pTargetMD && pTargetMD->IsDynamicMethod() && pTargetMD->AsDynamicMethodDesc()->GetILStubType() == DynamicMethodDesc::StubTailCallStoreArgs);
+    }
+
     if (pTargetMD != pTailCallDispatcherMD)
     {
         return false;
@@ -5886,6 +5896,13 @@ bool DebuggerStepper::TrapStep(ControllerStackInfo *info, bool in)
                     fCallingIntoFunclet = IsAddrWithinMethodIncludingFunclet(ji, info->m_activeFrame.md, walker.GetNextIP()) &&
                         ((CORDB_ADDRESS)(SIZE_T)walker.GetNextIP() != ji->m_addrOfCode);
 #endif
+                    // If we are stepping into a tail call that uses the StoreTailCallArgs 
+                    // we need to enable the method enter, otherwise it will behave like a resume
+                    if (in && IsTailCall(walker.GetNextIP(), info, TailCallFunctionType::StoreTailCallArgs))
+                    {
+                        EnableMethodEnter();
+                        return true;
+                    }
                     // At this point, we know that the call/branch target is not
                     // in the current method. The possible cases is that this is
                     // a jump or a tailcall-via-helper. There are two separate
@@ -5897,7 +5914,7 @@ bool DebuggerStepper::TrapStep(ControllerStackInfo *info, bool in)
                     // is done by stepping out to the previous user function
                     // (non IL stub).
                     if ((fIsJump && !fCallingIntoFunclet) || IsTailCallJitHelper(walker.GetNextIP()) ||
-                        IsTailCallThatReturns(walker.GetNextIP(), info))
+                        IsTailCall(walker.GetNextIP(), info, TailCallFunctionType::TailCallThatReturns))
                     {
                         // A step-over becomes a step-out for a tail call.
                         if (!in)
@@ -6043,7 +6060,7 @@ bool DebuggerStepper::TrapStep(ControllerStackInfo *info, bool in)
                 return true;
             }
 
-            if (IsTailCallJitHelper(walker.GetNextIP()) || IsTailCallThatReturns(walker.GetNextIP(), info))
+            if (IsTailCallJitHelper(walker.GetNextIP()) || IsTailCall(walker.GetNextIP(), info, TailCallFunctionType::TailCallThatReturns))
             {
                 if (!in)
                 {