diff --git a/sdk/lib/crt/CMakeLists.txt b/sdk/lib/crt/CMakeLists.txt
index 03a366ce372..24d4205fbd0 100644
--- a/sdk/lib/crt/CMakeLists.txt
+++ b/sdk/lib/crt/CMakeLists.txt
@@ -9,10 +9,7 @@ if(ARCH STREQUAL "i386")
         list(APPEND CHKSTK_SOURCE except/i386/chkstk_ms.s)
     endif()
 elseif(ARCH STREQUAL "amd64")
-    list(APPEND CHKSTK_ASM_SOURCE except/amd64/chkstk_asm.s)
-    if(NOT MSVC)
-        list(APPEND CHKSTK_SOURCE except/amd64/chkstk_ms.s)
-    endif()
+    list(APPEND CHKSTK_ASM_SOURCE except/amd64/chkstk_ms.s)
 elseif(ARCH STREQUAL "arm")
     list(APPEND CHKSTK_ASM_SOURCE except/arm/chkstk_asm.s)
     if(NOT MSVC)
diff --git a/sdk/lib/crt/except/amd64/chkstk_ms.s b/sdk/lib/crt/except/amd64/chkstk_ms.s
index dbf9eb2e691..0894720975f 100644
--- a/sdk/lib/crt/except/amd64/chkstk_ms.s
+++ b/sdk/lib/crt/except/amd64/chkstk_ms.s
@@ -15,14 +15,17 @@
 /* CODE **********************************************************************/
 .code64
 
-PUBLIC ___chkstk_ms
+PUBLIC __chkstk
+PUBLIC __alloca_probe
+
+__alloca_probe:
+.PROC __chkstk
 
-    //cfi_startproc()
-___chkstk_ms:
     push rcx                    /* save temps */
-    //cfi_push(%rcx)
+    .pushreg rcx
     push rax
-    //cfi_push(%rax)
+    .pushreg rax
+    .endprolog
 
     cmp rax, PAGE_SIZE          /* > 4k ?*/
     lea rcx, [rsp + 24]         /* point past return addr */
@@ -41,11 +44,10 @@ l_LessThanAPage:
     or byte ptr [rcx], 0        /* less than 4k, just peek here */
 
     pop rax
-    //cfi_pop(%rax)
     pop rcx
-    //cfi_pop(%rcx)
     ret
-    //cfi_endproc()
+
+.ENDP
 
 END
 /* EOF */
diff --git a/sdk/lib/crt/libcntpr.cmake b/sdk/lib/crt/libcntpr.cmake
index 1a49be53d75..f15f60367b1 100644
--- a/sdk/lib/crt/libcntpr.cmake
+++ b/sdk/lib/crt/libcntpr.cmake
@@ -112,7 +112,7 @@ if(ARCH STREQUAL "i386")
     endif()
 elseif(ARCH STREQUAL "amd64")
     list(APPEND LIBCNTPR_ASM_SOURCE
-        except/amd64/chkstk_asm.s
+        except/amd64/chkstk_ms.s
         except/amd64/seh.s
         setjmp/amd64/setjmp.s
         math/amd64/atan.S
diff --git a/sdk/lib/crt/msvcrtex.cmake b/sdk/lib/crt/msvcrtex.cmake
index 3d68ce5189f..66b90d47ed8 100644
--- a/sdk/lib/crt/msvcrtex.cmake
+++ b/sdk/lib/crt/msvcrtex.cmake
@@ -67,7 +67,6 @@ if(ARCH STREQUAL "i386")
         math/i386/cisqrt.c)
 elseif(ARCH STREQUAL "amd64")
     list(APPEND MSVCRTEX_ASM_SOURCE
-        except/amd64/chkstk_asm.s
         except/amd64/chkstk_ms.s)
 elseif(ARCH STREQUAL "arm")
     list(APPEND MSVCRTEX_SOURCE