[Interp] Interpreter for ARM32 SOFTP

src/coreclr/clr.featuredefines.props

@@ -36,7 +36,7 @@
         <FeatureObjCMarshal>true</FeatureObjCMarshal>
     </PropertyGroup>
 
-    <PropertyGroup Condition="('$(Platform)' == 'x64' OR '$(Platform)' == 'arm64') AND ('$(Configuration)' == 'debug' OR '$(Configuration)' == 'checked') AND '$(TargetsAndroid)' != 'true'">
+    <PropertyGroup Condition="('$(Platform)' == 'x64' OR '$(Platform)' == 'arm64' OR '$(Platform)' == 'arm') AND ('$(Configuration)' == 'debug' OR '$(Configuration)' == 'checked') AND '$(TargetsAndroid)' != 'true'">
         <FeatureInterpreter>true</FeatureInterpreter>
     </PropertyGroup>
 

src/coreclr/clrfeatures.cmake

@@ -44,11 +44,11 @@ if(NOT DEFINED FEATURE_INTERPRETER)
     set(FEATURE_PORTABLE_ENTRYPOINTS 1)
     set(FEATURE_PORTABLE_HELPERS 1)
   else()
-    if(CLR_CMAKE_TARGET_ARCH_AMD64 OR CLR_CMAKE_TARGET_ARCH_ARM64)
+    if(CLR_CMAKE_TARGET_ARCH_AMD64 OR CLR_CMAKE_TARGET_ARCH_ARM64 OR CLR_CMAKE_TARGET_ARCH_ARM)
       set(FEATURE_INTERPRETER $<IF:$<CONFIG:Debug,Checked>,1,0>)
-    else(CLR_CMAKE_TARGET_ARCH_AMD64 OR CLR_CMAKE_TARGET_ARCH_ARM64)
+    else(CLR_CMAKE_TARGET_ARCH_AMD64 OR CLR_CMAKE_TARGET_ARCH_ARM64 OR CLR_CMAKE_TARGET_ARCH_ARM)
       set(FEATURE_INTERPRETER 0)
-    endif(CLR_CMAKE_TARGET_ARCH_AMD64 OR CLR_CMAKE_TARGET_ARCH_ARM64)
+    endif(CLR_CMAKE_TARGET_ARCH_AMD64 OR CLR_CMAKE_TARGET_ARCH_ARM64 OR CLR_CMAKE_TARGET_ARCH_ARM)
   endif()
 endif(NOT DEFINED FEATURE_INTERPRETER)
 

src/coreclr/interpreter/compiler.cpp

@@ -1873,8 +1873,8 @@ int32_t InterpCompiler::GetInterpTypeStackSize(CORINFO_CLASS_HANDLE clsHnd, Inte
         if (align < INTERP_STACK_SLOT_SIZE)
             align = INTERP_STACK_SLOT_SIZE;
 
-        // We do not align beyond the stack alignment 
-        // (This is relevant for structs with very high alignment requirements, 
+        // We do not align beyond the stack alignment
+        // (This is relevant for structs with very high alignment requirements,
         // where we align within struct layout, but the structs are not actually
         // aligned on the stack)
         if (align > INTERP_STACK_ALIGNMENT)

src/coreclr/pal/inc/unixasmmacrosarm.inc

@@ -172,6 +172,7 @@ C_FUNC(\Name):
         .endif
 
         __PWTB_StackAlloc = __PWTB_TransitionBlock
+        __PWTB_ArgumentRegisters = __PWTB_StackAlloc + 36
 
         .ifnc \pushArgRegs, DoNotPushArgRegs
                 PUSH_ARGUMENT_REGISTERS
@@ -318,3 +319,24 @@ C_FUNC(\Name):
         movw \DestReg, #((\Constant) & 0xFFFF)
         movt \DestReg, #((\Constant) >> 16)
 .endm
+
+
+// thumb with PIC version
+.macro INLINE_GET_TLS_VAR var
+        ldr     r0, 2f
+1:
+        add     r0, pc, r0
+        bl      __tls_get_addr
+        b       3f
+
+        // Inline data
+        // LLVM assembler has no concept of subsections and this is not expressible as
+        // cross-section relocation.
+        .p2align 2
+2:
+        .extern \var
+        .type \var, tls_object
+        .long  \var(TLSGD) + (2b - 1b - 4)
+3:
+.endm
+

src/coreclr/vm/arm/asmconstants.h

@@ -73,6 +73,8 @@ ASMCONSTANTS_C_ASSERT(ASM_MIN_OBJECT_SIZE == MIN_OBJECT_SIZE);
 #define MethodTable__enum_flag_ContainsGCPointers 0x01000000
 ASMCONSTANTS_C_ASSERT(MethodTable__enum_flag_ContainsGCPointers == MethodTable::enum_flag_ContainsGCPointers);
 
+#define METHODDESC_REGISTER r12
+
 #define SIZEOF__MethodTable             DBG_FRE(0x2c, 0x28)
 ASMCONSTANTS_C_ASSERT(SIZEOF__MethodTable == sizeof(MethodTable));
 
@@ -198,6 +200,35 @@ ASMCONSTANTS_C_ASSERT(CallCountingStubData__TargetForMethod == offsetof(CallCoun
 ASMCONSTANTS_C_ASSERT(CallCountingStubData__TargetForThresholdReached == offsetof(CallCountingStubData, TargetForThresholdReached))
 #endif // FEATURE_TIERED_COMPILATION
 
+#define OFFSETOF__ThreadLocalInfo__m_pThread 0
+ASMCONSTANTS_C_ASSERT(OFFSETOF__ThreadLocalInfo__m_pThread == offsetof(ThreadLocalInfo, m_pThread))
+
+#ifdef FEATURE_INTERPRETER
+#ifdef _DEBUG
+#define OFFSETOF__InterpMethod__pCallStub 0x14
+#else
+#define OFFSETOF__InterpMethod__pCallStub 0x10
+#endif
+ASMCONSTANTS_C_ASSERT(OFFSETOF__InterpMethod__pCallStub == offsetof(InterpMethod, pCallStub))
+
+#ifdef TARGET_UNIX
+#define OFFSETOF__Thread__m_pInterpThreadContext 0x660
+#else // TARGET_UNIX
+#define OFFSETOF__Thread__m_pInterpThreadContext 0x0
+#endif // TARGET_UNIX
+ASMCONSTANTS_C_ASSERT(OFFSETOF__Thread__m_pInterpThreadContext == offsetof(Thread, m_pInterpThreadContext))
+
+#define OFFSETOF__InterpThreadContext__pStackPointer 0x8
+ASMCONSTANTS_C_ASSERT(OFFSETOF__InterpThreadContext__pStackPointer == offsetof(InterpThreadContext, pStackPointer))
+
+#define OFFSETOF__CallStubHeader__Routines 0xc
+ASMCONSTANTS_C_ASSERT(OFFSETOF__CallStubHeader__Routines == offsetof(CallStubHeader, Routines))
+
+#define SIZEOF__TransitionBlock 0x34
+ASMCONSTANTS_C_ASSERT(SIZEOF__TransitionBlock == sizeof(TransitionBlock))
+
+#endif // FEATURE_INTERPRETER
+
 #ifdef PROFILING_SUPPORTED
 #define PROFILE_ENTER        0x1
 #define PROFILE_LEAVE        0x2