build: Redirect mem{cpy,move,cmp,set} to NTDLL

mcfgthread/gthr_aux.c

@@ -319,7 +319,7 @@ do_gthr_get_thread_record(_MCF_thread* thrd)
 
     /* Check the GUID. As user-defined data are aligned to 16-byte boundaries,
      * there must be at least 16 bytes available.  */
-    if(__builtin_memcmp(rec->__magic_guid, &__MCF_crt_gthread_guid, 16) != 0)
+    if(!__MCF_mequal(rec->__magic_guid, &__MCF_crt_gthread_guid, 16))
       return __MCF_nullptr;
 
     /* Assume so. `do_gthr_thread_thunk_v3()` is not shared across modules,
@@ -331,8 +331,8 @@ __MCF_DLLEXPORT
 _MCF_thread*
 __MCF_gthr_thread_create_v3(__MCF_gthr_thread_procedure* proc, void* arg)
   {
-    __MCF_ALIGNED(16) __MCF_gthr_thread_record record;
-    __builtin_memcpy(record.__magic_guid, &__MCF_crt_gthread_guid, 16);
+    __MCF_gthr_thread_record record;
+    __MCF_mcopy(record.__magic_guid, &__MCF_crt_gthread_guid, 16);
     record.__proc = proc;
     record.__arg_or_result = arg;
     return _MCF_thread_new(do_gthr_thread_thunk_v3, &record, sizeof(record));

mcfgthread/mcfgthread.def

@@ -0,0 +1,12 @@
+;; This file is part of MCF Gthread.
+;; Copyright (C) 2022-2024 LH_Mouse. All wrongs reserved.
+;;
+;; MCF Gthread is free software. Licensing information is included in
+;; LICENSE.TXT as a whole. The GCC Runtime Library Exception applies
+;; to this file.
+
+EXPORTS
+  memcpy = ntdll.memcpy
+  memmove = ntdll.memmove
+  memcmp = ntdll.memcmp
+  memset = ntdll.memset

mcfgthread/xglobals.c

@@ -349,56 +349,6 @@ DllMainCRTStartup(PVOID instance, ULONG reason, PVOID reserved)
       }
   }
 
-#  if defined _MSC_VER
-__pragma(comment(linker, "/export:" __MCF_USYM "memcpy,DATA"))
-#  else
-__attribute__((__dllexport__))
-#  endif
-void*
-__cdecl
-memcpy(void* dst, const void* src, size_t size)
-  {
-    return __MCF_mcopy(dst, src, size);
-  }
-
-#  if defined _MSC_VER
-__pragma(comment(linker, "/export:" __MCF_USYM "memmove,DATA"))
-#  else
-__attribute__((__dllexport__))
-#  endif
-void*
-__cdecl
-memmove(void* dst, const void* src, size_t size)
-  {
-    return ((uintptr_t) dst - (uintptr_t) src >= size)
-            ? __MCF_mcopy(dst, src, size)
-            : __MCF_mcopy_backward(dst, src, size);
-  }
-
-#  if defined _MSC_VER
-__pragma(comment(linker, "/export:" __MCF_USYM "memcmp,DATA"))
-#  else
-__attribute__((__dllexport__))
-#  endif
-int
-__cdecl
-memcmp(const void* src, const void* cmp, size_t size)
-  {
-    return __MCF_mcompare(src, cmp, size);
-  }
-
-#  if defined _MSC_VER
-__pragma(comment(linker, "/export:" __MCF_USYM "memset,DATA"))
-#  else
-__attribute__((__dllexport__))
-#  endif
-void*
-__cdecl
-memset(void* dst, int val, size_t size)
-  {
-    return __MCF_mfill(dst, val, size);
-  }
-
 #  if defined __i386__
 extern const PVOID __safe_se_handler_table[];
 extern const ULONG __safe_se_handler_count;

meson.build

@@ -198,6 +198,7 @@ lib_mcfgthread_minimal_dll = shared_library('mcfgthread-minimal',
       link_args: lib_mcfgthread_dll_link_args,
       sources: [ mcfgthread_src_min, mcfgthread_version_o ],
       dependencies: [ dep_kernel32, dep_ntdll ],
+      vs_module_defs: 'mcfgthread/mcfgthread.def',
       name_prefix: 'lib',
       soversion: ver.get('abi_major'),
       version: '.'.join([ ver.get('abi_major'), ver.get('abi_minor'), '0' ]),
@@ -207,9 +208,10 @@ lib_mcfgthread_dll = shared_library('mcfgthread',
       c_pch: 'mcfgthread/xprecompiled.h',
       c_args: [ '-fasynchronous-unwind-tables', '-ffreestanding', '-D__MCF_IN_DLL' ],
       link_args: lib_mcfgthread_dll_link_args,
-      objects: lib_mcfgthread_minimal_dll.extract_objects(mcfgthread_src_min),
       sources: [ mcfgthread_src_ex, mcfgthread_version_o ],
+      objects: [ lib_mcfgthread_minimal_dll.extract_objects(mcfgthread_src_min) ],
       dependencies: [ dep_kernel32, dep_ntdll ],
+      vs_module_defs: 'mcfgthread/mcfgthread.def',
       name_prefix: 'lib',
       soversion: ver.get('abi_major'),
       version: '.'.join([ ver.get('abi_major'), ver.get('abi_minor'), '0' ]),