File libxml2-2.7.1-alloc_size.patch of Package libxml2

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File libxml2-2.7.1-alloc_size.patch of Package libxml2

--- include/libxml/xmlmemory.h
+++ include/libxml/xmlmemory.h
@@ -63,7 +63,7 @@
  *
  * Returns a pointer to the newly allocated block or NULL in case of error.
  */
-typedef void *(XMLCALL *xmlMallocFunc)(size_t size);
+typedef void *(ATTRIBUTE_ALLOC_SIZE(1) XMLCALL *xmlMallocFunc)(size_t size);
 
 /**
  * xmlReallocFunc:
@@ -150,7 +150,7 @@
 XMLPUBFUN void XMLCALL
 	xmlMemoryDump	(void);
 XMLPUBFUN void * XMLCALL
-	xmlMemMalloc	(size_t size);
+	xmlMemMalloc	(size_t size) ATTRIBUTE_ALLOC_SIZE(1);
 XMLPUBFUN void * XMLCALL
 	xmlMemRealloc	(void *ptr,size_t size);
 XMLPUBFUN void XMLCALL
@@ -158,11 +158,11 @@
 XMLPUBFUN char * XMLCALL
 	xmlMemoryStrdup	(const char *str);
 XMLPUBFUN void * XMLCALL
-	xmlMallocLoc	(size_t size, const char *file, int line);
+	xmlMallocLoc	(size_t size, const char *file, int line) ATTRIBUTE_ALLOC_SIZE(1);
 XMLPUBFUN void * XMLCALL
 	xmlReallocLoc	(void *ptr, size_t size, const char *file, int line);
 XMLPUBFUN void * XMLCALL
-	xmlMallocAtomicLoc (size_t size, const char *file, int line);
+	xmlMallocAtomicLoc (size_t size, const char *file, int line) ATTRIBUTE_ALLOC_SIZE(1);
 XMLPUBFUN char * XMLCALL
 	xmlMemStrdupLoc	(const char *str, const char *file, int line);
 
--- include/libxml/xmlversion.h.in
+++ include/libxml/xmlversion.h.in
@@ -397,9 +397,19 @@
 #ifndef ATTRIBUTE_PRINTF
 #define ATTRIBUTE_PRINTF(fmt,args) __attribute__((__format__(__printf__,fmt,args)))
 #endif
+#ifndef ATTRIBUTE_ALLOC_SIZE
+# if ((__GNUC__ > 4) || ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 3)))
+#  define ATTRIBUTE_ALLOC_SIZE(x) __attribute__((alloc_size(x)))
+# else
+#  define ATTRIBUTE_ALLOC_SIZE(x)
+# endif
+#else
+# define ATTRIBUTE_ALLOC_SIZE(x)
+#endif
 #else
 #define ATTRIBUTE_UNUSED
 #define ATTRIBUTE_PRINTF
+#define ATTRIBUTE_ALLOC_SIZE(x)
 #endif
 
 #ifdef __cplusplus

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File libxml2-2.7.1-alloc_size.patch of Package libxml2

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