[CPPRT][CRT][MSVCRT] Move __CxxFrameHandler3 to crt and export it on NT6

Previously it was in cpprt, which is a support library for C++, containing functions that are not exported by msvcrt. But since Vista __CxxFrameHandler3 is exported by msvcrt. Therefore move it to crt, and to satisfy pre-Vista configurations, also add it to msvcrtex.

dll/win32/msvcrt/msvcrt.spec

@@ -241,7 +241,8 @@
 @ cdecl -arch=i386 -norelay __CxxFrameHandler2(ptr ptr ptr ptr) __CxxFrameHandler
 @ cdecl -version=0x600+ -arch=x86_64 -norelay __CxxFrameHandler2(ptr ptr ptr ptr) __CxxFrameHandler
 @ cdecl -arch=arm -norelay __CxxFrameHandler3(ptr ptr ptr ptr)
-#@ cdecl -version=0x600+ -arch=i386,x86_64 -norelay -private __CxxFrameHandler3(ptr ptr ptr ptr) # Commented out for now, as it causes linker errors
+@ cdecl -version=0x600+ -arch=i386 -norelay __CxxFrameHandler3(ptr ptr ptr ptr)
+@ cdecl -version=0x600+ -arch=x86_64 -norelay __CxxFrameHandler3(ptr ptr ptr ptr) __CxxFrameHandler
 @ stdcall -arch=i386 __CxxLongjmpUnwind(ptr)
 @ cdecl -arch=i386 __CxxQueryExceptionSize()
 @ cdecl -arch=i386 __CxxRegisterExceptionObject()

sdk/lib/cpprt/CMakeLists.txt

@@ -11,7 +11,6 @@ list(APPEND SOURCE
 
 if(ARCH STREQUAL "i386")
   add_asm_files(cpprt_asm i386/cpprt.s)
-  list(APPEND SOURCE i386/framehandler.c)
 elseif(ARCH STREQUAL "amd64")
   add_asm_files(cpprt_asm amd64/cpprt.s)
 elseif(ARCH STREQUAL "arm")

sdk/lib/cpprt/amd64/cpprt.s

@@ -19,9 +19,6 @@ DEFINE_ALIAS ??_M@YAXPEAX_K1P6AX0@Z@Z, ?MSVCRTEX_eh_vector_destructor_iterator@@
 ; void __cdecl `eh vector destructor iterator'(void * __ptr64,unsigned __int64,int,void (__cdecl*)(void * __ptr64))
 DEFINE_ALIAS ??_M@YAXPEAX_KHP6AX0@Z@Z, ?MSVCRTEX_eh_vector_destructor_iterator@@YAXPEAX_KHP6AX0@Z@Z
 
-; These are the same
-DEFINE_ALIAS __CxxFrameHandler3, __CxxFrameHandler
-
 ; void __cdecl operator delete(void * __ptr64,struct std::nothrow_t const & __ptr64)
 DEFINE_ALIAS ??3@YAXPEAXAEBUnothrow_t@std@@@Z, ??3@YAXPEAX@Z
 

sdk/lib/cpprt/i386/cpprt.s

@@ -7,23 +7,6 @@ EXTERN &orig : PROC
 ALIAS <&alias> = <&orig>
 ENDM
 
-EXTERN _CxxHandleV8Frame@20 : PROC
-PUBLIC ___CxxFrameHandler3
-___CxxFrameHandler3:
-    push eax
-    push dword ptr [esp + 20]
-    push dword ptr [esp + 20]
-    push dword ptr [esp + 20]
-    push dword ptr [esp + 20]
-    call _CxxHandleV8Frame@20
-    ret
-
-EXTERN ___CxxFrameHandler : PROC
-PUBLIC _CallCxxFrameHandler
-_CallCxxFrameHandler:
-    mov eax, dword ptr [esp + 20]
-    jmp ___CxxFrameHandler
-
 ; void __stdcall `eh vector constructor iterator'(void *,unsigned int,int,void (__thiscall*)(void *),void (__thiscall*)(void *))
 DEFINE_ALIAS ??_L@YGXPAXIHP6EX0@Z1@Z, ?MSVCRTEX_eh_vector_constructor_iterator@@YGXPAXIHP6EX0@Z1@Z
 

sdk/lib/crt/except/amd64/__CxxFrameHandler3.s

@@ -0,0 +1,15 @@
+
+#include <asm.inc>
+
+.code64
+.align 4
+
+MACRO(DEFINE_ALIAS, alias, orig)
+EXTERN &orig : PROC
+ALIAS <&alias> = <&orig>
+ENDM
+
+; These are the same
+DEFINE_ALIAS __CxxFrameHandler3, __CxxFrameHandler
+
+END

sdk/lib/crt/except/except.cmake

@@ -4,9 +4,13 @@ if(ARCH STREQUAL "i386")
         except/i386/chkstk_asm.s
     )
     list(APPEND CRT_EXCEPT_ASM_SOURCE
+        except/i386/__CxxFrameHandler3.s
         except/i386/chkesp.s
         except/i386/prolog.s
     )
+    list(APPEND CRT_EXCEPT_SOURCE
+        except/i386/CxxHandleV8Frame.c
+    )
     if(MSVC)
         list(APPEND CRT_EXCEPT_ASM_SOURCE
             except/i386/cpp.s)

sdk/lib/crt/except/i386/__CxxFrameHandler3.s

@@ -0,0 +1,26 @@
+
+
+#include <asm.inc>
+
+.code
+.align 4
+
+EXTERN _CxxHandleV8Frame@20 : PROC
+PUBLIC ___CxxFrameHandler3
+___CxxFrameHandler3:
+    push eax
+    push dword ptr [esp + 20]
+    push dword ptr [esp + 20]
+    push dword ptr [esp + 20]
+    push dword ptr [esp + 20]
+    call _CxxHandleV8Frame@20
+    ret
+
+EXTERN ___CxxFrameHandler : PROC
+PUBLIC _CallCxxFrameHandler
+_CallCxxFrameHandler:
+    mov eax, dword ptr [esp + 20]
+    jmp ___CxxFrameHandler
+
+END
+

sdk/lib/crt/msvcrtex.cmake

@@ -36,9 +36,20 @@ if(ARCH STREQUAL "i386")
         list(APPEND MSVCRTEX_SOURCE
             math/i386/sqrtf.c)
     endif()
+    if(MSVC AND DLL_EXPORT_VERSION LESS 0x600)
+        list(APPEND MSVCRTEX_ASM_SOURCE
+            except/i386/__CxxFrameHandler3.s)
+        list(APPEND MSVCRTEX_SOURCE
+            except/i386/CxxHandleV8Frame.c)
+    endif()
 elseif(ARCH STREQUAL "amd64")
     list(APPEND MSVCRTEX_ASM_SOURCE
         except/amd64/chkstk_ms.s)
+    if(MSVC AND DLL_EXPORT_VERSION LESS 0x600)
+        list(APPEND MSVCRTEX_ASM_SOURCE
+            except/amd64/__CxxFrameHandler3.s
+        )
+    endif()
 elseif(ARCH STREQUAL "arm")
     list(APPEND MSVCRTEX_SOURCE
         math/arm/__rt_sdiv.c