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commit f9de8bfe1a731c309b91d175b4f6f4aeb786effa
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Author: Siddhesh Poyarekar <siddhesh@sourceware.org>
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Date:   Tue Dec 15 23:50:09 2020 +0530
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    nonstring: Enable __FORTIFY_LEVEL=3
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    Use __builtin_dynamic_object_size in the remaining functions that
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    don't have compiler builtins as is the case for string functions.
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diff --git a/io/bits/poll2.h b/io/bits/poll2.h
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index 7e8406b87d6319f8..f47fd9ad0945234f 100644
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--- a/io/bits/poll2.h
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+++ b/io/bits/poll2.h
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@@ -35,12 +35,13 @@ extern int __REDIRECT (__poll_chk_warn, (struct pollfd *__fds, nfds_t __nfds,
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 __fortify_function int
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 poll (struct pollfd *__fds, nfds_t __nfds, int __timeout)
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 {
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-  if (__bos (__fds) != (__SIZE_TYPE__) -1)
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+  if (__glibc_objsize (__fds) != (__SIZE_TYPE__) -1)
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     {
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       if (! __builtin_constant_p (__nfds))
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-	return __poll_chk (__fds, __nfds, __timeout, __bos (__fds));
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-      else if (__bos (__fds) / sizeof (*__fds) < __nfds)
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-	return __poll_chk_warn (__fds, __nfds, __timeout, __bos (__fds));
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+	return __poll_chk (__fds, __nfds, __timeout, __glibc_objsize (__fds));
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+      else if (__glibc_objsize (__fds) / sizeof (*__fds) < __nfds)
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+	return __poll_chk_warn (__fds, __nfds, __timeout,
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+				__glibc_objsize (__fds));
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     }
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   return __poll_alias (__fds, __nfds, __timeout);
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@@ -65,13 +66,14 @@ __fortify_function int
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 ppoll (struct pollfd *__fds, nfds_t __nfds, const struct timespec *__timeout,
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        const __sigset_t *__ss)
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 {
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-  if (__bos (__fds) != (__SIZE_TYPE__) -1)
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+  if (__glibc_objsize (__fds) != (__SIZE_TYPE__) -1)
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     {
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       if (! __builtin_constant_p (__nfds))
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-	return __ppoll_chk (__fds, __nfds, __timeout, __ss, __bos (__fds));
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-      else if (__bos (__fds) / sizeof (*__fds) < __nfds)
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+	return __ppoll_chk (__fds, __nfds, __timeout, __ss,
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+			    __glibc_objsize (__fds));
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+      else if (__glibc_objsize (__fds) / sizeof (*__fds) < __nfds)
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 	return __ppoll_chk_warn (__fds, __nfds, __timeout, __ss,
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-				 __bos (__fds));
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+				 __glibc_objsize (__fds));
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     }
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   return __ppoll_alias (__fds, __nfds, __timeout, __ss);
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diff --git a/libio/bits/stdio.h b/libio/bits/stdio.h
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index 4ab919031f77a960..1372d4bf70c43d53 100644
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--- a/libio/bits/stdio.h
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+++ b/libio/bits/stdio.h
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@@ -31,7 +31,7 @@
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 #ifdef __USE_EXTERN_INLINES
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-/* For -D_FORTIFY_SOURCE{,=2} bits/stdio2.h will define a different
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+/* For -D_FORTIFY_SOURCE{,=2,=3} bits/stdio2.h will define a different
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    inline.  */
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 # if !(__USE_FORTIFY_LEVEL > 0 && defined __fortify_function)
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 /* Write formatted output to stdout from argument list ARG.  */
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diff --git a/libio/bits/stdio2.h b/libio/bits/stdio2.h
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index 11651506a67daea0..2cd69f44cfadfc9f 100644
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--- a/libio/bits/stdio2.h
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+++ b/libio/bits/stdio2.h
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@@ -34,12 +34,13 @@ __fortify_function int
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 __NTH (sprintf (char *__restrict __s, const char *__restrict __fmt, ...))
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 {
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   return __builtin___sprintf_chk (__s, __USE_FORTIFY_LEVEL - 1,
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-				  __bos (__s), __fmt, __va_arg_pack ());
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+				  __glibc_objsize (__s), __fmt,
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+				  __va_arg_pack ());
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 }
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 #elif !defined __cplusplus
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 # define sprintf(str, ...) \
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-  __builtin___sprintf_chk (str, __USE_FORTIFY_LEVEL - 1, __bos (str), \
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-			   __VA_ARGS__)
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+  __builtin___sprintf_chk (str, __USE_FORTIFY_LEVEL - 1,		      \
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+			   __glibc_objsize (str), __VA_ARGS__)
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 #endif
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 __fortify_function int
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@@ -47,7 +48,7 @@ __NTH (vsprintf (char *__restrict __s, const char *__restrict __fmt,
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 		 __gnuc_va_list __ap))
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 {
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   return __builtin___vsprintf_chk (__s, __USE_FORTIFY_LEVEL - 1,
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-				   __bos (__s), __fmt, __ap);
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+				   __glibc_objsize (__s), __fmt, __ap);
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 }
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 #if defined __USE_ISOC99 || defined __USE_UNIX98
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@@ -65,12 +66,13 @@ __NTH (snprintf (char *__restrict __s, size_t __n,
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 		 const char *__restrict __fmt, ...))
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 {
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   return __builtin___snprintf_chk (__s, __n, __USE_FORTIFY_LEVEL - 1,
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-				   __bos (__s), __fmt, __va_arg_pack ());
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+				   __glibc_objsize (__s), __fmt,
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+				   __va_arg_pack ());
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 }
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 # elif !defined __cplusplus
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 #  define snprintf(str, len, ...) \
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-  __builtin___snprintf_chk (str, len, __USE_FORTIFY_LEVEL - 1, __bos (str), \
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-			    __VA_ARGS__)
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+  __builtin___snprintf_chk (str, len, __USE_FORTIFY_LEVEL - 1,		      \
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+			    __glibc_objsize (str), __VA_ARGS__)
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 # endif
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 __fortify_function int
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@@ -78,7 +80,7 @@ __NTH (vsnprintf (char *__restrict __s, size_t __n,
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 		  const char *__restrict __fmt, __gnuc_va_list __ap))
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 {
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   return __builtin___vsnprintf_chk (__s, __n, __USE_FORTIFY_LEVEL - 1,
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-				    __bos (__s), __fmt, __ap);
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+				    __glibc_objsize (__s), __fmt, __ap);
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 }
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 #endif
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@@ -234,8 +236,8 @@ extern char *__REDIRECT (__gets_warn, (char *__str), gets)
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 __fortify_function __wur char *
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 gets (char *__str)
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 {
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-  if (__bos (__str) != (size_t) -1)
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-    return __gets_chk (__str, __bos (__str));
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+  if (__glibc_objsize (__str) != (size_t) -1)
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+    return __gets_chk (__str, __glibc_objsize (__str));
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   return __gets_warn (__str);
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 }
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 #endif
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@@ -254,13 +256,13 @@ extern char *__REDIRECT (__fgets_chk_warn,
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 __fortify_function __wur char *
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 fgets (char *__restrict __s, int __n, FILE *__restrict __stream)
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 {
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-  if (__bos (__s) != (size_t) -1)
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+  if (__glibc_objsize (__s) != (size_t) -1)
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     {
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       if (!__builtin_constant_p (__n) || __n <= 0)
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-	return __fgets_chk (__s, __bos (__s), __n, __stream);
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+	return __fgets_chk (__s, __glibc_objsize (__s), __n, __stream);
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-      if ((size_t) __n > __bos (__s))
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-	return __fgets_chk_warn (__s, __bos (__s), __n, __stream);
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+      if ((size_t) __n > __glibc_objsize (__s))
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+	return __fgets_chk_warn (__s, __glibc_objsize (__s), __n, __stream);
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     }
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   return __fgets_alias (__s, __n, __stream);
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 }
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@@ -284,15 +286,17 @@ __fortify_function __wur size_t
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 fread (void *__restrict __ptr, size_t __size, size_t __n,
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        FILE *__restrict __stream)
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 {
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-  if (__bos0 (__ptr) != (size_t) -1)
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+  if (__glibc_objsize0 (__ptr) != (size_t) -1)
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     {
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       if (!__builtin_constant_p (__size)
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 	  || !__builtin_constant_p (__n)
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 	  || (__size | __n) >= (((size_t) 1) << (8 * sizeof (size_t) / 2)))
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-	return __fread_chk (__ptr, __bos0 (__ptr), __size, __n, __stream);
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+	return __fread_chk (__ptr, __glibc_objsize0 (__ptr), __size, __n,
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+			    __stream);
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-      if (__size * __n > __bos0 (__ptr))
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-	return __fread_chk_warn (__ptr, __bos0 (__ptr), __size, __n, __stream);
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+      if (__size * __n > __glibc_objsize0 (__ptr))
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+	return __fread_chk_warn (__ptr, __glibc_objsize0 (__ptr), __size, __n,
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+				 __stream);
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     }
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   return __fread_alias (__ptr, __size, __n, __stream);
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 }
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@@ -312,13 +316,15 @@ extern char *__REDIRECT (__fgets_unlocked_chk_warn,
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 __fortify_function __wur char *
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 fgets_unlocked (char *__restrict __s, int __n, FILE *__restrict __stream)
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 {
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-  if (__bos (__s) != (size_t) -1)
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+  if (__glibc_objsize (__s) != (size_t) -1)
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     {
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       if (!__builtin_constant_p (__n) || __n <= 0)
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-	return __fgets_unlocked_chk (__s, __bos (__s), __n, __stream);
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+	return __fgets_unlocked_chk (__s, __glibc_objsize (__s), __n,
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+				     __stream);
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-      if ((size_t) __n > __bos (__s))
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-	return __fgets_unlocked_chk_warn (__s, __bos (__s), __n, __stream);
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+      if ((size_t) __n > __glibc_objsize (__s))
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+	return __fgets_unlocked_chk_warn (__s, __glibc_objsize (__s), __n,
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+					  __stream);
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     }
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   return __fgets_unlocked_alias (__s, __n, __stream);
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 }
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@@ -345,17 +351,17 @@ __fortify_function __wur size_t
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 fread_unlocked (void *__restrict __ptr, size_t __size, size_t __n,
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 		FILE *__restrict __stream)
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 {
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-  if (__bos0 (__ptr) != (size_t) -1)
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+  if (__glibc_objsize0 (__ptr) != (size_t) -1)
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     {
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       if (!__builtin_constant_p (__size)
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 	  || !__builtin_constant_p (__n)
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 	  || (__size | __n) >= (((size_t) 1) << (8 * sizeof (size_t) / 2)))
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-	return __fread_unlocked_chk (__ptr, __bos0 (__ptr), __size, __n,
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-				     __stream);
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+	return __fread_unlocked_chk (__ptr, __glibc_objsize0 (__ptr), __size,
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+				     __n, __stream);
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-      if (__size * __n > __bos0 (__ptr))
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-	return __fread_unlocked_chk_warn (__ptr, __bos0 (__ptr), __size, __n,
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-					  __stream);
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+      if (__size * __n > __glibc_objsize0 (__ptr))
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+	return __fread_unlocked_chk_warn (__ptr, __glibc_objsize0 (__ptr),
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+					  __size, __n, __stream);
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     }
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 # ifdef __USE_EXTERN_INLINES
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diff --git a/posix/bits/unistd.h b/posix/bits/unistd.h
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index 9a749dccf8de65cd..a0c4dcfe9c61a7b8 100644
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--- a/posix/bits/unistd.h
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+++ b/posix/bits/unistd.h
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@@ -33,13 +33,14 @@ extern ssize_t __REDIRECT (__read_chk_warn,
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 __fortify_function __wur ssize_t
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 read (int __fd, void *__buf, size_t __nbytes)
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 {
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-  if (__bos0 (__buf) != (size_t) -1)
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+  if (__glibc_objsize0 (__buf) != (size_t) -1)
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     {
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       if (!__builtin_constant_p (__nbytes))
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-	return __read_chk (__fd, __buf, __nbytes, __bos0 (__buf));
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+	return __read_chk (__fd, __buf, __nbytes, __glibc_objsize0 (__buf));
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-      if (__nbytes > __bos0 (__buf))
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-	return __read_chk_warn (__fd, __buf, __nbytes, __bos0 (__buf));
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+      if (__nbytes > __glibc_objsize0 (__buf))
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+	return __read_chk_warn (__fd, __buf, __nbytes,
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+				__glibc_objsize0 (__buf));
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     }
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   return __read_alias (__fd, __buf, __nbytes);
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 }
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@@ -71,14 +72,15 @@ extern ssize_t __REDIRECT (__pread64_chk_warn,
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 __fortify_function __wur ssize_t
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 pread (int __fd, void *__buf, size_t __nbytes, __off_t __offset)
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 {
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-  if (__bos0 (__buf) != (size_t) -1)
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+  if (__glibc_objsize0 (__buf) != (size_t) -1)
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     {
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       if (!__builtin_constant_p (__nbytes))
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-	return __pread_chk (__fd, __buf, __nbytes, __offset, __bos0 (__buf));
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+	return __pread_chk (__fd, __buf, __nbytes, __offset,
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+			    __glibc_objsize0 (__buf));
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-      if ( __nbytes > __bos0 (__buf))
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+      if ( __nbytes > __glibc_objsize0 (__buf))
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 	return __pread_chk_warn (__fd, __buf, __nbytes, __offset,
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-				 __bos0 (__buf));
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+				 __glibc_objsize0 (__buf));
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     }
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   return __pread_alias (__fd, __buf, __nbytes, __offset);
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 }
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@@ -86,14 +88,15 @@ pread (int __fd, void *__buf, size_t __nbytes, __off_t __offset)
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 __fortify_function __wur ssize_t
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 pread (int __fd, void *__buf, size_t __nbytes, __off64_t __offset)
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 {
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-  if (__bos0 (__buf) != (size_t) -1)
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+  if (__glibc_objsize0 (__buf) != (size_t) -1)
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     {
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       if (!__builtin_constant_p (__nbytes))
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-	return __pread64_chk (__fd, __buf, __nbytes, __offset, __bos0 (__buf));
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+	return __pread64_chk (__fd, __buf, __nbytes, __offset,
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+			      __glibc_objsize0 (__buf));
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-      if ( __nbytes > __bos0 (__buf))
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+      if ( __nbytes > __glibc_objsize0 (__buf))
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 	return __pread64_chk_warn (__fd, __buf, __nbytes, __offset,
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-				   __bos0 (__buf));
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+				   __glibc_objsize0 (__buf));
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     }
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   return __pread64_alias (__fd, __buf, __nbytes, __offset);
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@@ -104,14 +107,15 @@ pread (int __fd, void *__buf, size_t __nbytes, __off64_t __offset)
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 __fortify_function __wur ssize_t
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 pread64 (int __fd, void *__buf, size_t __nbytes, __off64_t __offset)
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 {
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-  if (__bos0 (__buf) != (size_t) -1)
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+  if (__glibc_objsize0 (__buf) != (size_t) -1)
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     {
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       if (!__builtin_constant_p (__nbytes))
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-	return __pread64_chk (__fd, __buf, __nbytes, __offset, __bos0 (__buf));
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+	return __pread64_chk (__fd, __buf, __nbytes, __offset,
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+			      __glibc_objsize0 (__buf));
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-      if ( __nbytes > __bos0 (__buf))
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+      if ( __nbytes > __glibc_objsize0 (__buf))
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 	return __pread64_chk_warn (__fd, __buf, __nbytes, __offset,
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-				   __bos0 (__buf));
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+				   __glibc_objsize0 (__buf));
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     }
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   return __pread64_alias (__fd, __buf, __nbytes, __offset);
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@@ -139,13 +143,14 @@ __fortify_function __nonnull ((1, 2)) __wur ssize_t
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 __NTH (readlink (const char *__restrict __path, char *__restrict __buf,
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 		 size_t __len))
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 {
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-  if (__bos (__buf) != (size_t) -1)
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+  if (__glibc_objsize (__buf) != (size_t) -1)
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     {
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       if (!__builtin_constant_p (__len))
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-	return __readlink_chk (__path, __buf, __len, __bos (__buf));
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+	return __readlink_chk (__path, __buf, __len, __glibc_objsize (__buf));
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-      if ( __len > __bos (__buf))
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-	return __readlink_chk_warn (__path, __buf, __len, __bos (__buf));
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+      if ( __len > __glibc_objsize (__buf))
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+	return __readlink_chk_warn (__path, __buf, __len,
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+				    __glibc_objsize (__buf));
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     }
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   return __readlink_alias (__path, __buf, __len);
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 }
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@@ -173,14 +178,15 @@ __fortify_function __nonnull ((2, 3)) __wur ssize_t
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 __NTH (readlinkat (int __fd, const char *__restrict __path,
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 		   char *__restrict __buf, size_t __len))
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 {
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-  if (__bos (__buf) != (size_t) -1)
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+  if (__glibc_objsize (__buf) != (size_t) -1)
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     {
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       if (!__builtin_constant_p (__len))
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-	return __readlinkat_chk (__fd, __path, __buf, __len, __bos (__buf));
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+	return __readlinkat_chk (__fd, __path, __buf, __len,
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+				 __glibc_objsize (__buf));
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-      if (__len > __bos (__buf))
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+      if (__len > __glibc_objsize (__buf))
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 	return __readlinkat_chk_warn (__fd, __path, __buf, __len,
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-				      __bos (__buf));
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+				      __glibc_objsize (__buf));
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     }
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   return __readlinkat_alias (__fd, __path, __buf, __len);
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 }
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@@ -199,13 +205,13 @@ extern char *__REDIRECT_NTH (__getcwd_chk_warn,
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 __fortify_function __wur char *
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 __NTH (getcwd (char *__buf, size_t __size))
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 {
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-  if (__bos (__buf) != (size_t) -1)
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+  if (__glibc_objsize (__buf) != (size_t) -1)
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     {
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       if (!__builtin_constant_p (__size))
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-	return __getcwd_chk (__buf, __size, __bos (__buf));
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+	return __getcwd_chk (__buf, __size, __glibc_objsize (__buf));
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-      if (__size > __bos (__buf))
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-	return __getcwd_chk_warn (__buf, __size, __bos (__buf));
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+      if (__size > __glibc_objsize (__buf))
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+	return __getcwd_chk_warn (__buf, __size, __glibc_objsize (__buf));
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     }
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   return __getcwd_alias (__buf, __size);
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 }
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@@ -220,8 +226,8 @@ extern char *__REDIRECT_NTH (__getwd_warn, (char *__buf), getwd)
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 __fortify_function __nonnull ((1)) __attribute_deprecated__ __wur char *
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 __NTH (getwd (char *__buf))
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 {
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-  if (__bos (__buf) != (size_t) -1)
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-    return __getwd_chk (__buf, __bos (__buf));
a41fe4
+  if (__glibc_objsize (__buf) != (size_t) -1)
a41fe4
+    return __getwd_chk (__buf, __glibc_objsize (__buf));
a41fe4
   return __getwd_warn (__buf);
a41fe4
 }
a41fe4
 #endif
a41fe4
@@ -239,13 +245,14 @@ extern size_t __REDIRECT_NTH (__confstr_chk_warn,
a41fe4
 __fortify_function size_t
a41fe4
 __NTH (confstr (int __name, char *__buf, size_t __len))
a41fe4
 {
a41fe4
-  if (__bos (__buf) != (size_t) -1)
a41fe4
+  if (__glibc_objsize (__buf) != (size_t) -1)
a41fe4
     {
a41fe4
       if (!__builtin_constant_p (__len))
a41fe4
-	return __confstr_chk (__name, __buf, __len, __bos (__buf));
a41fe4
+	return __confstr_chk (__name, __buf, __len, __glibc_objsize (__buf));
a41fe4
 
a41fe4
-      if (__bos (__buf) < __len)
a41fe4
-	return __confstr_chk_warn (__name, __buf, __len, __bos (__buf));
a41fe4
+      if (__glibc_objsize (__buf) < __len)
a41fe4
+	return __confstr_chk_warn (__name, __buf, __len,
a41fe4
+				   __glibc_objsize (__buf));
a41fe4
     }
a41fe4
   return __confstr_alias (__name, __buf, __len);
a41fe4
 }
a41fe4
@@ -264,13 +271,13 @@ extern int __REDIRECT_NTH (__getgroups_chk_warn,
a41fe4
 __fortify_function int
a41fe4
 __NTH (getgroups (int __size, __gid_t __list[]))
a41fe4
 {
a41fe4
-  if (__bos (__list) != (size_t) -1)
a41fe4
+  if (__glibc_objsize (__list) != (size_t) -1)
a41fe4
     {
a41fe4
       if (!__builtin_constant_p (__size) || __size < 0)
a41fe4
-	return __getgroups_chk (__size, __list, __bos (__list));
a41fe4
+	return __getgroups_chk (__size, __list, __glibc_objsize (__list));
a41fe4
 
a41fe4
-      if (__size * sizeof (__gid_t) > __bos (__list))
a41fe4
-	return __getgroups_chk_warn (__size, __list, __bos (__list));
a41fe4
+      if (__size * sizeof (__gid_t) > __glibc_objsize (__list))
a41fe4
+	return __getgroups_chk_warn (__size, __list, __glibc_objsize (__list));
a41fe4
     }
a41fe4
   return __getgroups_alias (__size, __list);
a41fe4
 }
a41fe4
@@ -290,13 +297,15 @@ extern int __REDIRECT_NTH (__ttyname_r_chk_warn,
a41fe4
 __fortify_function int
a41fe4
 __NTH (ttyname_r (int __fd, char *__buf, size_t __buflen))
a41fe4
 {
a41fe4
-  if (__bos (__buf) != (size_t) -1)
a41fe4
+  if (__glibc_objsize (__buf) != (size_t) -1)
a41fe4
     {
a41fe4
       if (!__builtin_constant_p (__buflen))
a41fe4
-	return __ttyname_r_chk (__fd, __buf, __buflen, __bos (__buf));
a41fe4
+	return __ttyname_r_chk (__fd, __buf, __buflen,
a41fe4
+				__glibc_objsize (__buf));
a41fe4
 
a41fe4
-      if (__buflen > __bos (__buf))
a41fe4
-	return __ttyname_r_chk_warn (__fd, __buf, __buflen, __bos (__buf));
a41fe4
+      if (__buflen > __glibc_objsize (__buf))
a41fe4
+	return __ttyname_r_chk_warn (__fd, __buf, __buflen,
a41fe4
+				     __glibc_objsize (__buf));
a41fe4
     }
a41fe4
   return __ttyname_r_alias (__fd, __buf, __buflen);
a41fe4
 }
a41fe4
@@ -316,13 +325,14 @@ extern int __REDIRECT (__getlogin_r_chk_warn,
a41fe4
 __fortify_function int
a41fe4
 getlogin_r (char *__buf, size_t __buflen)
a41fe4
 {
a41fe4
-  if (__bos (__buf) != (size_t) -1)
a41fe4
+  if (__glibc_objsize (__buf) != (size_t) -1)
a41fe4
     {
a41fe4
       if (!__builtin_constant_p (__buflen))
a41fe4
-	return __getlogin_r_chk (__buf, __buflen, __bos (__buf));
a41fe4
+	return __getlogin_r_chk (__buf, __buflen, __glibc_objsize (__buf));
a41fe4
 
a41fe4
-      if (__buflen > __bos (__buf))
a41fe4
-	return __getlogin_r_chk_warn (__buf, __buflen, __bos (__buf));
a41fe4
+      if (__buflen > __glibc_objsize (__buf))
a41fe4
+	return __getlogin_r_chk_warn (__buf, __buflen,
a41fe4
+				      __glibc_objsize (__buf));
a41fe4
     }
a41fe4
   return __getlogin_r_alias (__buf, __buflen);
a41fe4
 }
a41fe4
@@ -343,13 +353,14 @@ extern int __REDIRECT_NTH (__gethostname_chk_warn,
a41fe4
 __fortify_function int
a41fe4
 __NTH (gethostname (char *__buf, size_t __buflen))
a41fe4
 {
a41fe4
-  if (__bos (__buf) != (size_t) -1)
a41fe4
+  if (__glibc_objsize (__buf) != (size_t) -1)
a41fe4
     {
a41fe4
       if (!__builtin_constant_p (__buflen))
a41fe4
-	return __gethostname_chk (__buf, __buflen, __bos (__buf));
a41fe4
+	return __gethostname_chk (__buf, __buflen, __glibc_objsize (__buf));
a41fe4
 
a41fe4
-      if (__buflen > __bos (__buf))
a41fe4
-	return __gethostname_chk_warn (__buf, __buflen, __bos (__buf));
a41fe4
+      if (__buflen > __glibc_objsize (__buf))
a41fe4
+	return __gethostname_chk_warn (__buf, __buflen,
a41fe4
+				       __glibc_objsize (__buf));
a41fe4
     }
a41fe4
   return __gethostname_alias (__buf, __buflen);
a41fe4
 }
a41fe4
@@ -372,13 +383,14 @@ extern int __REDIRECT_NTH (__getdomainname_chk_warn,
a41fe4
 __fortify_function int
a41fe4
 __NTH (getdomainname (char *__buf, size_t __buflen))
a41fe4
 {
a41fe4
-  if (__bos (__buf) != (size_t) -1)
a41fe4
+  if (__glibc_objsize (__buf) != (size_t) -1)
a41fe4
     {
a41fe4
       if (!__builtin_constant_p (__buflen))
a41fe4
-	return __getdomainname_chk (__buf, __buflen, __bos (__buf));
a41fe4
+	return __getdomainname_chk (__buf, __buflen, __glibc_objsize (__buf));
a41fe4
 
a41fe4
-      if (__buflen > __bos (__buf))
a41fe4
-	return __getdomainname_chk_warn (__buf, __buflen, __bos (__buf));
a41fe4
+      if (__buflen > __glibc_objsize (__buf))
a41fe4
+	return __getdomainname_chk_warn (__buf, __buflen,
a41fe4
+					 __glibc_objsize (__buf));
a41fe4
     }
a41fe4
   return __getdomainname_alias (__buf, __buflen);
a41fe4
 }
a41fe4
diff --git a/socket/bits/socket2.h b/socket/bits/socket2.h
a41fe4
index a129e697352fd7cb..729e5a4cc1f4cb92 100644
a41fe4
--- a/socket/bits/socket2.h
a41fe4
+++ b/socket/bits/socket2.h
a41fe4
@@ -33,13 +33,15 @@ extern ssize_t __REDIRECT (__recv_chk_warn,
a41fe4
 __fortify_function ssize_t
a41fe4
 recv (int __fd, void *__buf, size_t __n, int __flags)
a41fe4
 {
a41fe4
-  if (__bos0 (__buf) != (size_t) -1)
a41fe4
+  if (__glibc_objsize0 (__buf) != (size_t) -1)
a41fe4
     {
a41fe4
       if (!__builtin_constant_p (__n))
a41fe4
-	return __recv_chk (__fd, __buf, __n, __bos0 (__buf), __flags);
a41fe4
+	return __recv_chk (__fd, __buf, __n, __glibc_objsize0 (__buf),
a41fe4
+			   __flags);
a41fe4
 
a41fe4
-      if (__n > __bos0 (__buf))
a41fe4
-	return __recv_chk_warn (__fd, __buf, __n, __bos0 (__buf), __flags);
a41fe4
+      if (__n > __glibc_objsize0 (__buf))
a41fe4
+	return __recv_chk_warn (__fd, __buf, __n, __glibc_objsize0 (__buf),
a41fe4
+				__flags);
a41fe4
     }
a41fe4
   return __recv_alias (__fd, __buf, __n, __flags);
a41fe4
 }
a41fe4
@@ -64,14 +66,14 @@ __fortify_function ssize_t
a41fe4
 recvfrom (int __fd, void *__restrict __buf, size_t __n, int __flags,
a41fe4
 	  __SOCKADDR_ARG __addr, socklen_t *__restrict __addr_len)
a41fe4
 {
a41fe4
-  if (__bos0 (__buf) != (size_t) -1)
a41fe4
+  if (__glibc_objsize0 (__buf) != (size_t) -1)
a41fe4
     {
a41fe4
       if (!__builtin_constant_p (__n))
a41fe4
-	return __recvfrom_chk (__fd, __buf, __n, __bos0 (__buf), __flags,
a41fe4
-			       __addr, __addr_len);
a41fe4
-      if (__n > __bos0 (__buf))
a41fe4
-	return __recvfrom_chk_warn (__fd, __buf, __n, __bos0 (__buf), __flags,
a41fe4
-				    __addr, __addr_len);
a41fe4
+	return __recvfrom_chk (__fd, __buf, __n, __glibc_objsize0 (__buf),
a41fe4
+			       __flags, __addr, __addr_len);
a41fe4
+      if (__n > __glibc_objsize0 (__buf))
a41fe4
+	return __recvfrom_chk_warn (__fd, __buf, __n, __glibc_objsize0 (__buf),
a41fe4
+				    __flags, __addr, __addr_len);
a41fe4
     }
a41fe4
   return __recvfrom_alias (__fd, __buf, __n, __flags, __addr, __addr_len);
a41fe4
 }
a41fe4
diff --git a/stdlib/bits/stdlib.h b/stdlib/bits/stdlib.h
a41fe4
index 53c379b99ae9d5fe..5e4114ded33f2033 100644
a41fe4
--- a/stdlib/bits/stdlib.h
a41fe4
+++ b/stdlib/bits/stdlib.h
a41fe4
@@ -36,13 +36,14 @@ extern char *__REDIRECT_NTH (__realpath_chk_warn,
a41fe4
 __fortify_function __wur char *
a41fe4
 __NTH (realpath (const char *__restrict __name, char *__restrict __resolved))
a41fe4
 {
a41fe4
-  if (__bos (__resolved) != (size_t) -1)
a41fe4
+  if (__glibc_objsize (__resolved) != (size_t) -1)
a41fe4
     {
a41fe4
 #if defined _LIBC_LIMITS_H_ && defined PATH_MAX
a41fe4
-      if (__bos (__resolved) < PATH_MAX)
a41fe4
-	return __realpath_chk_warn (__name, __resolved, __bos (__resolved));
a41fe4
+      if (__glibc_objsize (__resolved) < PATH_MAX)
a41fe4
+	return __realpath_chk_warn (__name, __resolved,
a41fe4
+				    __glibc_objsize (__resolved));
a41fe4
 #endif
a41fe4
-      return __realpath_chk (__name, __resolved, __bos (__resolved));
a41fe4
+      return __realpath_chk (__name, __resolved, __glibc_objsize (__resolved));
a41fe4
     }
a41fe4
 
a41fe4
   return __realpath_alias (__name, __resolved);
a41fe4
@@ -63,12 +64,14 @@ extern int __REDIRECT_NTH (__ptsname_r_chk_warn,
a41fe4
 __fortify_function int
a41fe4
 __NTH (ptsname_r (int __fd, char *__buf, size_t __buflen))
a41fe4
 {
a41fe4
-  if (__bos (__buf) != (size_t) -1)
a41fe4
+  if (__glibc_objsize (__buf) != (size_t) -1)
a41fe4
     {
a41fe4
       if (!__builtin_constant_p (__buflen))
a41fe4
-	return __ptsname_r_chk (__fd, __buf, __buflen, __bos (__buf));
a41fe4
-      if (__buflen > __bos (__buf))
a41fe4
-	return __ptsname_r_chk_warn (__fd, __buf, __buflen, __bos (__buf));
a41fe4
+	return __ptsname_r_chk (__fd, __buf, __buflen,
a41fe4
+				__glibc_objsize (__buf));
a41fe4
+      if (__buflen > __glibc_objsize (__buf))
a41fe4
+	return __ptsname_r_chk_warn (__fd, __buf, __buflen,
a41fe4
+				     __glibc_objsize (__buf));
a41fe4
     }
a41fe4
   return __ptsname_r_alias (__fd, __buf, __buflen);
a41fe4
 }
a41fe4
@@ -89,8 +92,9 @@ __NTH (wctomb (char *__s, wchar_t __wchar))
a41fe4
 #if defined MB_LEN_MAX && MB_LEN_MAX != __STDLIB_MB_LEN_MAX
a41fe4
 # error "Assumed value of MB_LEN_MAX wrong"
a41fe4
 #endif
a41fe4
-  if (__bos (__s) != (size_t) -1 && __STDLIB_MB_LEN_MAX > __bos (__s))
a41fe4
-    return __wctomb_chk (__s, __wchar, __bos (__s));
a41fe4
+  if (__glibc_objsize (__s) != (size_t) -1
a41fe4
+      && __STDLIB_MB_LEN_MAX > __glibc_objsize (__s))
a41fe4
+    return __wctomb_chk (__s, __wchar, __glibc_objsize (__s));
a41fe4
   return __wctomb_alias (__s, __wchar);
a41fe4
 }
a41fe4
 
a41fe4
@@ -113,15 +117,16 @@ __fortify_function size_t
a41fe4
 __NTH (mbstowcs (wchar_t *__restrict __dst, const char *__restrict __src,
a41fe4
 		 size_t __len))
a41fe4
 {
a41fe4
-  if (__bos (__dst) != (size_t) -1)
a41fe4
+  if (__glibc_objsize (__dst) != (size_t) -1)
a41fe4
     {
a41fe4
       if (!__builtin_constant_p (__len))
a41fe4
 	return __mbstowcs_chk (__dst, __src, __len,
a41fe4
-			       __bos (__dst) / sizeof (wchar_t));
a41fe4
+			       __glibc_objsize (__dst) / sizeof (wchar_t));
a41fe4
 
a41fe4
-      if (__len > __bos (__dst) / sizeof (wchar_t))
a41fe4
+      if (__len > __glibc_objsize (__dst) / sizeof (wchar_t))
a41fe4
 	return __mbstowcs_chk_warn (__dst, __src, __len,
a41fe4
-				     __bos (__dst) / sizeof (wchar_t));
a41fe4
+				    (__glibc_objsize (__dst)
a41fe4
+				     / sizeof (wchar_t)));
a41fe4
     }
a41fe4
   return __mbstowcs_alias (__dst, __src, __len);
a41fe4
 }
a41fe4
@@ -144,12 +149,13 @@ __fortify_function size_t
a41fe4
 __NTH (wcstombs (char *__restrict __dst, const wchar_t *__restrict __src,
a41fe4
 		 size_t __len))
a41fe4
 {
a41fe4
-  if (__bos (__dst) != (size_t) -1)
a41fe4
+  if (__glibc_objsize (__dst) != (size_t) -1)
a41fe4
     {
a41fe4
       if (!__builtin_constant_p (__len))
a41fe4
-	return __wcstombs_chk (__dst, __src, __len, __bos (__dst));
a41fe4
-      if (__len > __bos (__dst))
a41fe4
-	return __wcstombs_chk_warn (__dst, __src, __len, __bos (__dst));
a41fe4
+	return __wcstombs_chk (__dst, __src, __len, __glibc_objsize (__dst));
a41fe4
+      if (__len > __glibc_objsize (__dst))
a41fe4
+	return __wcstombs_chk_warn (__dst, __src, __len,
a41fe4
+				    __glibc_objsize (__dst));
a41fe4
     }
a41fe4
   return __wcstombs_alias (__dst, __src, __len);
a41fe4
 }
a41fe4
diff --git a/wcsmbs/bits/wchar2.h b/wcsmbs/bits/wchar2.h
a41fe4
index d62b86de3e288d53..838ba877ee4b4afe 100644
a41fe4
--- a/wcsmbs/bits/wchar2.h
a41fe4
+++ b/wcsmbs/bits/wchar2.h
a41fe4
@@ -39,15 +39,15 @@ __fortify_function wchar_t *
a41fe4
 __NTH (wmemcpy (wchar_t *__restrict __s1, const wchar_t *__restrict __s2,
a41fe4
 		size_t __n))
a41fe4
 {
a41fe4
-  if (__bos0 (__s1) != (size_t) -1)
a41fe4
+  if (__glibc_objsize0 (__s1) != (size_t) -1)
a41fe4
     {
a41fe4
       if (!__builtin_constant_p (__n))
a41fe4
 	return __wmemcpy_chk (__s1, __s2, __n,
a41fe4
-			      __bos0 (__s1) / sizeof (wchar_t));
a41fe4
+			      __glibc_objsize0 (__s1) / sizeof (wchar_t));
a41fe4
 
a41fe4
-      if (__n > __bos0 (__s1) / sizeof (wchar_t))
a41fe4
+      if (__n > __glibc_objsize0 (__s1) / sizeof (wchar_t))
a41fe4
 	return __wmemcpy_chk_warn (__s1, __s2, __n,
a41fe4
-				   __bos0 (__s1) / sizeof (wchar_t));
a41fe4
+				   __glibc_objsize0 (__s1) / sizeof (wchar_t));
a41fe4
     }
a41fe4
   return __wmemcpy_alias (__s1, __s2, __n);
a41fe4
 }
a41fe4
@@ -67,15 +67,16 @@ extern wchar_t *__REDIRECT_NTH (__wmemmove_chk_warn,
a41fe4
 __fortify_function wchar_t *
a41fe4
 __NTH (wmemmove (wchar_t *__s1, const wchar_t *__s2, size_t __n))
a41fe4
 {
a41fe4
-  if (__bos0 (__s1) != (size_t) -1)
a41fe4
+  if (__glibc_objsize0 (__s1) != (size_t) -1)
a41fe4
     {
a41fe4
       if (!__builtin_constant_p (__n))
a41fe4
 	return __wmemmove_chk (__s1, __s2, __n,
a41fe4
-			       __bos0 (__s1) / sizeof (wchar_t));
a41fe4
+			       __glibc_objsize0 (__s1) / sizeof (wchar_t));
a41fe4
 
a41fe4
-      if (__n > __bos0 (__s1) / sizeof (wchar_t))
a41fe4
+      if (__n > __glibc_objsize0 (__s1) / sizeof (wchar_t))
a41fe4
 	return __wmemmove_chk_warn (__s1, __s2, __n,
a41fe4
-				    __bos0 (__s1) / sizeof (wchar_t));
a41fe4
+				    (__glibc_objsize0 (__s1)
a41fe4
+				     / sizeof (wchar_t)));
a41fe4
     }
a41fe4
   return __wmemmove_alias (__s1, __s2, __n);
a41fe4
 }
a41fe4
@@ -100,15 +101,16 @@ __fortify_function wchar_t *
a41fe4
 __NTH (wmempcpy (wchar_t *__restrict __s1, const wchar_t *__restrict __s2,
a41fe4
 		 size_t __n))
a41fe4
 {
a41fe4
-  if (__bos0 (__s1) != (size_t) -1)
a41fe4
+  if (__glibc_objsize0 (__s1) != (size_t) -1)
a41fe4
     {
a41fe4
       if (!__builtin_constant_p (__n))
a41fe4
 	return __wmempcpy_chk (__s1, __s2, __n,
a41fe4
-			       __bos0 (__s1) / sizeof (wchar_t));
a41fe4
+			       __glibc_objsize0 (__s1) / sizeof (wchar_t));
a41fe4
 
a41fe4
-      if (__n > __bos0 (__s1) / sizeof (wchar_t))
a41fe4
+      if (__n > __glibc_objsize0 (__s1) / sizeof (wchar_t))
a41fe4
 	return __wmempcpy_chk_warn (__s1, __s2, __n,
a41fe4
-				    __bos0 (__s1) / sizeof (wchar_t));
a41fe4
+				    (__glibc_objsize0 (__s1)
a41fe4
+				     / sizeof (wchar_t)));
a41fe4
     }
a41fe4
   return __wmempcpy_alias (__s1, __s2, __n);
a41fe4
 }
a41fe4
@@ -128,14 +130,15 @@ extern wchar_t *__REDIRECT_NTH (__wmemset_chk_warn,
a41fe4
 __fortify_function wchar_t *
a41fe4
 __NTH (wmemset (wchar_t *__s, wchar_t __c, size_t __n))
a41fe4
 {
a41fe4
-  if (__bos0 (__s) != (size_t) -1)
a41fe4
+  if (__glibc_objsize0 (__s) != (size_t) -1)
a41fe4
     {
a41fe4
       if (!__builtin_constant_p (__n))
a41fe4
-	return __wmemset_chk (__s, __c, __n, __bos0 (__s) / sizeof (wchar_t));
a41fe4
+	return __wmemset_chk (__s, __c, __n,
a41fe4
+			      __glibc_objsize0 (__s) / sizeof (wchar_t));
a41fe4
 
a41fe4
-      if (__n > __bos0 (__s) / sizeof (wchar_t))
a41fe4
+      if (__n > __glibc_objsize0 (__s) / sizeof (wchar_t))
a41fe4
 	return __wmemset_chk_warn (__s, __c, __n,
a41fe4
-				   __bos0 (__s) / sizeof (wchar_t));
a41fe4
+				   __glibc_objsize0 (__s) / sizeof (wchar_t));
a41fe4
     }
a41fe4
   return __wmemset_alias (__s, __c, __n);
a41fe4
 }
a41fe4
@@ -151,8 +154,9 @@ extern wchar_t *__REDIRECT_NTH (__wcscpy_alias,
a41fe4
 __fortify_function wchar_t *
a41fe4
 __NTH (wcscpy (wchar_t *__restrict __dest, const wchar_t *__restrict __src))
a41fe4
 {
a41fe4
-  if (__bos (__dest) != (size_t) -1)
a41fe4
-    return __wcscpy_chk (__dest, __src, __bos (__dest) / sizeof (wchar_t));
a41fe4
+  if (__glibc_objsize (__dest) != (size_t) -1)
a41fe4
+    return __wcscpy_chk (__dest, __src,
a41fe4
+			 __glibc_objsize (__dest) / sizeof (wchar_t));
a41fe4
   return __wcscpy_alias (__dest, __src);
a41fe4
 }
a41fe4
 
a41fe4
@@ -167,8 +171,9 @@ extern wchar_t *__REDIRECT_NTH (__wcpcpy_alias,
a41fe4
 __fortify_function wchar_t *
a41fe4
 __NTH (wcpcpy (wchar_t *__restrict __dest, const wchar_t *__restrict __src))
a41fe4
 {
a41fe4
-  if (__bos (__dest) != (size_t) -1)
a41fe4
-    return __wcpcpy_chk (__dest, __src, __bos (__dest) / sizeof (wchar_t));
a41fe4
+  if (__glibc_objsize (__dest) != (size_t) -1)
a41fe4
+    return __wcpcpy_chk (__dest, __src,
a41fe4
+			 __glibc_objsize (__dest) / sizeof (wchar_t));
a41fe4
   return __wcpcpy_alias (__dest, __src);
a41fe4
 }
a41fe4
 
a41fe4
@@ -191,14 +196,15 @@ __fortify_function wchar_t *
a41fe4
 __NTH (wcsncpy (wchar_t *__restrict __dest, const wchar_t *__restrict __src,
a41fe4
 		size_t __n))
a41fe4
 {
a41fe4
-  if (__bos (__dest) != (size_t) -1)
a41fe4
+  if (__glibc_objsize (__dest) != (size_t) -1)
a41fe4
     {
a41fe4
       if (!__builtin_constant_p (__n))
a41fe4
 	return __wcsncpy_chk (__dest, __src, __n,
a41fe4
-			      __bos (__dest) / sizeof (wchar_t));
a41fe4
-      if (__n > __bos (__dest) / sizeof (wchar_t))
a41fe4
+			      __glibc_objsize (__dest) / sizeof (wchar_t));
a41fe4
+      if (__n > __glibc_objsize (__dest) / sizeof (wchar_t))
a41fe4
 	return __wcsncpy_chk_warn (__dest, __src, __n,
a41fe4
-				   __bos (__dest) / sizeof (wchar_t));
a41fe4
+				   (__glibc_objsize (__dest)
a41fe4
+				    / sizeof (wchar_t)));
a41fe4
     }
a41fe4
   return __wcsncpy_alias (__dest, __src, __n);
a41fe4
 }
a41fe4
@@ -222,14 +228,15 @@ __fortify_function wchar_t *
a41fe4
 __NTH (wcpncpy (wchar_t *__restrict __dest, const wchar_t *__restrict __src,
a41fe4
 		size_t __n))
a41fe4
 {
a41fe4
-  if (__bos (__dest) != (size_t) -1)
a41fe4
+  if (__glibc_objsize (__dest) != (size_t) -1)
a41fe4
     {
a41fe4
       if (!__builtin_constant_p (__n))
a41fe4
 	return __wcpncpy_chk (__dest, __src, __n,
a41fe4
-			      __bos (__dest) / sizeof (wchar_t));
a41fe4
-      if (__n > __bos (__dest) / sizeof (wchar_t))
a41fe4
+			      __glibc_objsize (__dest) / sizeof (wchar_t));
a41fe4
+      if (__n > __glibc_objsize (__dest) / sizeof (wchar_t))
a41fe4
 	return __wcpncpy_chk_warn (__dest, __src, __n,
a41fe4
-				   __bos (__dest) / sizeof (wchar_t));
a41fe4
+				   (__glibc_objsize (__dest)
a41fe4
+				    / sizeof (wchar_t)));
a41fe4
     }
a41fe4
   return __wcpncpy_alias (__dest, __src, __n);
a41fe4
 }
a41fe4
@@ -245,8 +252,9 @@ extern wchar_t *__REDIRECT_NTH (__wcscat_alias,
a41fe4
 __fortify_function wchar_t *
a41fe4
 __NTH (wcscat (wchar_t *__restrict __dest, const wchar_t *__restrict __src))
a41fe4
 {
a41fe4
-  if (__bos (__dest) != (size_t) -1)
a41fe4
-    return __wcscat_chk (__dest, __src, __bos (__dest) / sizeof (wchar_t));
a41fe4
+  if (__glibc_objsize (__dest) != (size_t) -1)
a41fe4
+    return __wcscat_chk (__dest, __src,
a41fe4
+			 __glibc_objsize (__dest) / sizeof (wchar_t));
a41fe4
   return __wcscat_alias (__dest, __src);
a41fe4
 }
a41fe4
 
a41fe4
@@ -263,9 +271,9 @@ __fortify_function wchar_t *
a41fe4
 __NTH (wcsncat (wchar_t *__restrict __dest, const wchar_t *__restrict __src,
a41fe4
 		size_t __n))
a41fe4
 {
a41fe4
-  if (__bos (__dest) != (size_t) -1)
a41fe4
+  if (__glibc_objsize (__dest) != (size_t) -1)
a41fe4
     return __wcsncat_chk (__dest, __src, __n,
a41fe4
-			  __bos (__dest) / sizeof (wchar_t));
a41fe4
+			  __glibc_objsize (__dest) / sizeof (wchar_t));
a41fe4
   return __wcsncat_alias (__dest, __src, __n);
a41fe4
 }
a41fe4
 
a41fe4
@@ -285,18 +293,18 @@ __fortify_function int
a41fe4
 __NTH (swprintf (wchar_t *__restrict __s, size_t __n,
a41fe4
 		 const wchar_t *__restrict __fmt, ...))
a41fe4
 {
a41fe4
-  if (__bos (__s) != (size_t) -1 || __USE_FORTIFY_LEVEL > 1)
a41fe4
+  if (__glibc_objsize (__s) != (size_t) -1 || __USE_FORTIFY_LEVEL > 1)
a41fe4
     return __swprintf_chk (__s, __n, __USE_FORTIFY_LEVEL - 1,
a41fe4
-			   __bos (__s) / sizeof (wchar_t),
a41fe4
+			   __glibc_objsize (__s) / sizeof (wchar_t),
a41fe4
 			   __fmt, __va_arg_pack ());
a41fe4
   return __swprintf_alias (__s, __n, __fmt, __va_arg_pack ());
a41fe4
 }
a41fe4
 #elif !defined __cplusplus
a41fe4
 /* XXX We might want to have support in gcc for swprintf.  */
a41fe4
 # define swprintf(s, n, ...) \
a41fe4
-  (__bos (s) != (size_t) -1 || __USE_FORTIFY_LEVEL > 1			      \
a41fe4
+  (__glibc_objsize (s) != (size_t) -1 || __USE_FORTIFY_LEVEL > 1		      \
a41fe4
    ? __swprintf_chk (s, n, __USE_FORTIFY_LEVEL - 1,			      \
a41fe4
-		     __bos (s) / sizeof (wchar_t), __VA_ARGS__)		      \
a41fe4
+		     __glibc_objsize (s) / sizeof (wchar_t), __VA_ARGS__)	      \
a41fe4
    : swprintf (s, n, __VA_ARGS__))
a41fe4
 #endif
a41fe4
 
a41fe4
@@ -315,9 +323,10 @@ __fortify_function int
a41fe4
 __NTH (vswprintf (wchar_t *__restrict __s, size_t __n,
a41fe4
 		  const wchar_t *__restrict __fmt, __gnuc_va_list __ap))
a41fe4
 {
a41fe4
-  if (__bos (__s) != (size_t) -1 || __USE_FORTIFY_LEVEL > 1)
a41fe4
+  if (__glibc_objsize (__s) != (size_t) -1 || __USE_FORTIFY_LEVEL > 1)
a41fe4
     return __vswprintf_chk (__s, __n,  __USE_FORTIFY_LEVEL - 1,
a41fe4
-			    __bos (__s) / sizeof (wchar_t), __fmt, __ap);
a41fe4
+			    __glibc_objsize (__s) / sizeof (wchar_t), __fmt,
a41fe4
+			    __ap);
a41fe4
   return __vswprintf_alias (__s, __n, __fmt, __ap);
a41fe4
 }
a41fe4
 
a41fe4
@@ -383,14 +392,15 @@ extern wchar_t *__REDIRECT (__fgetws_chk_warn,
a41fe4
 __fortify_function __wur wchar_t *
a41fe4
 fgetws (wchar_t *__restrict __s, int __n, __FILE *__restrict __stream)
a41fe4
 {
a41fe4
-  if (__bos (__s) != (size_t) -1)
a41fe4
+  if (__glibc_objsize (__s) != (size_t) -1)
a41fe4
     {
a41fe4
       if (!__builtin_constant_p (__n) || __n <= 0)
a41fe4
-	return __fgetws_chk (__s, __bos (__s) / sizeof (wchar_t),
a41fe4
+	return __fgetws_chk (__s, __glibc_objsize (__s) / sizeof (wchar_t),
a41fe4
 			     __n, __stream);
a41fe4
 
a41fe4
-      if ((size_t) __n > __bos (__s) / sizeof (wchar_t))
a41fe4
-	return __fgetws_chk_warn (__s, __bos (__s) / sizeof (wchar_t),
a41fe4
+      if ((size_t) __n > __glibc_objsize (__s) / sizeof (wchar_t))
a41fe4
+	return __fgetws_chk_warn (__s,
a41fe4
+				  __glibc_objsize (__s) / sizeof (wchar_t),
a41fe4
 				  __n, __stream);
a41fe4
     }
a41fe4
   return __fgetws_alias (__s, __n, __stream);
a41fe4
@@ -414,14 +424,17 @@ extern wchar_t *__REDIRECT (__fgetws_unlocked_chk_warn,
a41fe4
 __fortify_function __wur wchar_t *
a41fe4
 fgetws_unlocked (wchar_t *__restrict __s, int __n, __FILE *__restrict __stream)
a41fe4
 {
a41fe4
-  if (__bos (__s) != (size_t) -1)
a41fe4
+  if (__glibc_objsize (__s) != (size_t) -1)
a41fe4
     {
a41fe4
       if (!__builtin_constant_p (__n) || __n <= 0)
a41fe4
-	return __fgetws_unlocked_chk (__s, __bos (__s) / sizeof (wchar_t),
a41fe4
+	return __fgetws_unlocked_chk (__s,
a41fe4
+				      __glibc_objsize (__s) / sizeof (wchar_t),
a41fe4
 				      __n, __stream);
a41fe4
 
a41fe4
-      if ((size_t) __n > __bos (__s) / sizeof (wchar_t))
a41fe4
-	return __fgetws_unlocked_chk_warn (__s, __bos (__s) / sizeof (wchar_t),
a41fe4
+      if ((size_t) __n > __glibc_objsize (__s) / sizeof (wchar_t))
a41fe4
+	return __fgetws_unlocked_chk_warn (__s,
a41fe4
+					   (__glibc_objsize (__s)
a41fe4
+					    / sizeof (wchar_t)),
a41fe4
 					   __n, __stream);
a41fe4
     }
a41fe4
   return __fgetws_unlocked_alias (__s, __n, __stream);
a41fe4
@@ -447,8 +460,9 @@ __NTH (wcrtomb (char *__restrict __s, wchar_t __wchar,
a41fe4
 #if defined MB_LEN_MAX && MB_LEN_MAX != __WCHAR_MB_LEN_MAX
a41fe4
 # error "Assumed value of MB_LEN_MAX wrong"
a41fe4
 #endif
a41fe4
-  if (__bos (__s) != (size_t) -1 && __WCHAR_MB_LEN_MAX > __bos (__s))
a41fe4
-    return __wcrtomb_chk (__s, __wchar, __ps, __bos (__s));
a41fe4
+  if (__glibc_objsize (__s) != (size_t) -1
a41fe4
+      && __WCHAR_MB_LEN_MAX > __glibc_objsize (__s))
a41fe4
+    return __wcrtomb_chk (__s, __wchar, __ps, __glibc_objsize (__s));
a41fe4
   return __wcrtomb_alias (__s, __wchar, __ps);
a41fe4
 }
a41fe4
 
a41fe4
@@ -474,15 +488,16 @@ __fortify_function size_t
a41fe4
 __NTH (mbsrtowcs (wchar_t *__restrict __dst, const char **__restrict __src,
a41fe4
 		  size_t __len, mbstate_t *__restrict __ps))
a41fe4
 {
a41fe4
-  if (__bos (__dst) != (size_t) -1)
a41fe4
+  if (__glibc_objsize (__dst) != (size_t) -1)
a41fe4
     {
a41fe4
       if (!__builtin_constant_p (__len))
a41fe4
 	return __mbsrtowcs_chk (__dst, __src, __len, __ps,
a41fe4
-				__bos (__dst) / sizeof (wchar_t));
a41fe4
+				__glibc_objsize (__dst) / sizeof (wchar_t));
a41fe4
 
a41fe4
-      if (__len > __bos (__dst) / sizeof (wchar_t))
a41fe4
+      if (__len > __glibc_objsize (__dst) / sizeof (wchar_t))
a41fe4
 	return __mbsrtowcs_chk_warn (__dst, __src, __len, __ps,
a41fe4
-				     __bos (__dst) / sizeof (wchar_t));
a41fe4
+				     (__glibc_objsize (__dst)
a41fe4
+				      / sizeof (wchar_t)));
a41fe4
     }
a41fe4
   return __mbsrtowcs_alias (__dst, __src, __len, __ps);
a41fe4
 }
a41fe4
@@ -508,13 +523,15 @@ __fortify_function size_t
a41fe4
 __NTH (wcsrtombs (char *__restrict __dst, const wchar_t **__restrict __src,
a41fe4
 		  size_t __len, mbstate_t *__restrict __ps))
a41fe4
 {
a41fe4
-  if (__bos (__dst) != (size_t) -1)
a41fe4
+  if (__glibc_objsize (__dst) != (size_t) -1)
a41fe4
     {
a41fe4
       if (!__builtin_constant_p (__len))
a41fe4
-	return __wcsrtombs_chk (__dst, __src, __len, __ps, __bos (__dst));
a41fe4
+	return __wcsrtombs_chk (__dst, __src, __len, __ps,
a41fe4
+				__glibc_objsize (__dst));
a41fe4
 
a41fe4
-      if (__len > __bos (__dst))
a41fe4
-	return __wcsrtombs_chk_warn (__dst, __src, __len, __ps, __bos (__dst));
a41fe4
+      if (__len > __glibc_objsize (__dst))
a41fe4
+	return __wcsrtombs_chk_warn (__dst, __src, __len, __ps,
a41fe4
+				     __glibc_objsize (__dst));
a41fe4
     }
a41fe4
   return __wcsrtombs_alias (__dst, __src, __len, __ps);
a41fe4
 }
a41fe4
@@ -542,15 +559,16 @@ __fortify_function size_t
a41fe4
 __NTH (mbsnrtowcs (wchar_t *__restrict __dst, const char **__restrict __src,
a41fe4
 		   size_t __nmc, size_t __len, mbstate_t *__restrict __ps))
a41fe4
 {
a41fe4
-  if (__bos (__dst) != (size_t) -1)
a41fe4
+  if (__glibc_objsize (__dst) != (size_t) -1)
a41fe4
     {
a41fe4
       if (!__builtin_constant_p (__len))
a41fe4
 	return __mbsnrtowcs_chk (__dst, __src, __nmc, __len, __ps,
a41fe4
-				 __bos (__dst) / sizeof (wchar_t));
a41fe4
+				 __glibc_objsize (__dst) / sizeof (wchar_t));
a41fe4
 
a41fe4
-      if (__len > __bos (__dst) / sizeof (wchar_t))
a41fe4
+      if (__len > __glibc_objsize (__dst) / sizeof (wchar_t))
a41fe4
 	return __mbsnrtowcs_chk_warn (__dst, __src, __nmc, __len, __ps,
a41fe4
-				      __bos (__dst) / sizeof (wchar_t));
a41fe4
+				      (__glibc_objsize (__dst)
a41fe4
+				       / sizeof (wchar_t)));
a41fe4
     }
a41fe4
   return __mbsnrtowcs_alias (__dst, __src, __nmc, __len, __ps);
a41fe4
 }
a41fe4
@@ -578,15 +596,15 @@ __fortify_function size_t
a41fe4
 __NTH (wcsnrtombs (char *__restrict __dst, const wchar_t **__restrict __src,
a41fe4
 		   size_t __nwc, size_t __len, mbstate_t *__restrict __ps))
a41fe4
 {
a41fe4
-  if (__bos (__dst) != (size_t) -1)
a41fe4
+  if (__glibc_objsize (__dst) != (size_t) -1)
a41fe4
     {
a41fe4
       if (!__builtin_constant_p (__len))
a41fe4
 	return __wcsnrtombs_chk (__dst, __src, __nwc, __len, __ps,
a41fe4
-				 __bos (__dst));
a41fe4
+				 __glibc_objsize (__dst));
a41fe4
 
a41fe4
-      if (__len > __bos (__dst))
a41fe4
+      if (__len > __glibc_objsize (__dst))
a41fe4
 	return __wcsnrtombs_chk_warn (__dst, __src, __nwc, __len, __ps,
a41fe4
-				      __bos (__dst));
a41fe4
+				      __glibc_objsize (__dst));
a41fe4
     }
a41fe4
   return __wcsnrtombs_alias (__dst, __src, __nwc, __len, __ps);
a41fe4
 }