include/msvcrt: Add __WINE_(DEALLOC|MALLOC) attributes to _strdup and _wcsdup.

include/msvcrt/corecrt.h

@@ -342,4 +342,16 @@ typedef struct threadlocaleinfostruct {
 #define __WINE_CRT_SCANF_ATTR(fmt,args)
 #endif
 
+#if defined(__GNUC__) && (__GNUC__ > 10)
+#define __WINE_DEALLOC(...) __attribute__((malloc (__VA_ARGS__)))
+#else
+#define __WINE_DEALLOC(...)
+#endif
+
+#if defined(__GNUC__) && (__GNUC__ > 2)
+#define __WINE_MALLOC __attribute__((malloc))
+#else
+#define __WINE_MALLOC
+#endif
+
 #endif /* __WINE_CORECRT_H */

include/msvcrt/corecrt_wstring.h

@@ -7,6 +7,7 @@
 #define _WSTRING_DEFINED
 
 #include <corecrt.h>
+#include <corecrt_malloc.h>
 
 #ifdef __cplusplus
 extern "C" {
@@ -29,7 +30,7 @@ static inline void* memccpy(void *s1, const void *s2, int c, size_t n) { return
 
 _ACRTIMP void*   __cdecl memmove(void*,const void*,size_t);
 
-_ACRTIMP wchar_t* __cdecl _wcsdup(const wchar_t*);
+_ACRTIMP wchar_t* __cdecl _wcsdup(const wchar_t*) __WINE_DEALLOC(free) __WINE_MALLOC;
 _ACRTIMP int      __cdecl _wcsicmp(const wchar_t*,const wchar_t*);
 _ACRTIMP int      __cdecl _wcsicoll(const wchar_t*,const wchar_t*);
 _ACRTIMP int      __cdecl _wcsicoll_l(const wchar_t*, const wchar_t*, _locale_t);

include/msvcrt/string.h

@@ -8,6 +8,7 @@
 #ifndef __WINE_STRING_H
 #define __WINE_STRING_H
 
+#include <corecrt_malloc.h>
 #include <corecrt_wstring.h>
 
 #ifndef _NLSCMP_DEFINED
@@ -22,7 +23,7 @@ extern "C" {
 _ACRTIMP size_t __cdecl __strncnt(const char*,size_t);
 _ACRTIMP int   __cdecl _strcmpi(const char*,const char*);
 _ACRTIMP int   __cdecl _strcoll_l(const char*, const char*, _locale_t);
-_ACRTIMP char* __cdecl _strdup(const char*);
+_ACRTIMP char* __cdecl _strdup(const char*) __WINE_DEALLOC(free) __WINE_MALLOC;
 _ACRTIMP char* __cdecl _strerror(const char*);
 _ACRTIMP errno_t __cdecl strerror_s(char*,size_t,int);
 _ACRTIMP int   __cdecl _stricmp(const char*,const char*);