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

[Alexandre Julliard]

Module: wine
Branch: stable
Commit: a4ca007083e6108654a02057af5253aed6bdef0b
URL:    https://gitlab.winehq.org/wine/wine/-/commit/a4ca007083e6108654a02057af5253a...

Author: Brendan Shanks <bshanks(a)codeweavers.com>
Date:   Mon Dec  5 11:36:31 2022 -0800

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

(cherry picked from commit 3a688e81a6de77bbed1a21d9649339950847cd0a)

---

 include/msvcrt/corecrt.h         | 12 ++++++++++++
 include/msvcrt/corecrt_wstring.h |  3 ++-
 include/msvcrt/string.h          |  3 ++-
 3 files changed, 16 insertions(+), 2 deletions(-)

diff --git a/include/msvcrt/corecrt.h b/include/msvcrt/corecrt.h
index aba9bc9422e..9f403c7d10e 100644
--- a/include/msvcrt/corecrt.h
+++ b/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 */
diff --git a/include/msvcrt/corecrt_wstring.h b/include/msvcrt/corecrt_wstring.h
index bcf9f947625..4d012800f65 100644
--- a/include/msvcrt/corecrt_wstring.h
+++ b/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);
diff --git a/include/msvcrt/string.h b/include/msvcrt/string.h
index 5e3d51076c6..18d424b1e6a 100644
--- a/include/msvcrt/string.h
+++ b/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*);