Update glibc start files to 2.40.

lib/libc/glibc/bits/libc-header-start.h

@@ -44,23 +44,23 @@
 
 /* ISO/IEC TS 18661-1:2014 defines the __STDC_WANT_IEC_60559_BFP_EXT__
    macro.  Most but not all symbols enabled by that macro in TS
-   18661-1 are enabled unconditionally in C2X.  In C2X, the symbols in
+   18661-1 are enabled unconditionally in C23.  In C23, the symbols in
    Annex F still require a new feature test macro
-   __STDC_WANT_IEC_60559_EXT__ instead (C2X does not define
+   __STDC_WANT_IEC_60559_EXT__ instead (C23 does not define
    __STDC_WANT_IEC_60559_BFP_EXT__), while a few features from TS
-   18661-1 are not included in C2X (and thus should depend on
-   __STDC_WANT_IEC_60559_BFP_EXT__ even when C2X features are
+   18661-1 are not included in C23 (and thus should depend on
+   __STDC_WANT_IEC_60559_BFP_EXT__ even when C23 features are
    enabled).
 
    __GLIBC_USE (IEC_60559_BFP_EXT) controls those features from TS
-   18661-1 not included in C2X.
+   18661-1 not included in C23.
 
-   __GLIBC_USE (IEC_60559_BFP_EXT_C2X) controls those features from TS
-   18661-1 that are also included in C2X (with no feature test macro
-   required in C2X).
+   __GLIBC_USE (IEC_60559_BFP_EXT_C23) controls those features from TS
+   18661-1 that are also included in C23 (with no feature test macro
+   required in C23).
 
    __GLIBC_USE (IEC_60559_EXT) controls those features from TS 18661-1
-   that are included in C2X but conditional on
+   that are included in C23 but conditional on
    __STDC_WANT_IEC_60559_EXT__.  (There are currently no features
    conditional on __STDC_WANT_IEC_60559_EXT__ that are not in TS
    18661-1.)  */
@@ -70,11 +70,11 @@
 #else
 # define __GLIBC_USE_IEC_60559_BFP_EXT 0
 #endif
-#undef __GLIBC_USE_IEC_60559_BFP_EXT_C2X
-#if __GLIBC_USE (IEC_60559_BFP_EXT) || __GLIBC_USE (ISOC2X)
-# define __GLIBC_USE_IEC_60559_BFP_EXT_C2X 1
+#undef __GLIBC_USE_IEC_60559_BFP_EXT_C23
+#if __GLIBC_USE (IEC_60559_BFP_EXT) || __GLIBC_USE (ISOC23)
+# define __GLIBC_USE_IEC_60559_BFP_EXT_C23 1
 #else
-# define __GLIBC_USE_IEC_60559_BFP_EXT_C2X 0
+# define __GLIBC_USE_IEC_60559_BFP_EXT_C23 0
 #endif
 #undef __GLIBC_USE_IEC_60559_EXT
 #if __GLIBC_USE (IEC_60559_BFP_EXT) || defined __STDC_WANT_IEC_60559_EXT__
@@ -86,18 +86,18 @@
 /* ISO/IEC TS 18661-4:2015 defines the
    __STDC_WANT_IEC_60559_FUNCS_EXT__ macro.  Other than the reduction
    functions, the symbols from this TS are enabled unconditionally in
-   C2X.  */
+   C23.  */
 #undef __GLIBC_USE_IEC_60559_FUNCS_EXT
 #if defined __USE_GNU || defined __STDC_WANT_IEC_60559_FUNCS_EXT__
 # define __GLIBC_USE_IEC_60559_FUNCS_EXT 1
 #else
 # define __GLIBC_USE_IEC_60559_FUNCS_EXT 0
 #endif
-#undef __GLIBC_USE_IEC_60559_FUNCS_EXT_C2X
-#if __GLIBC_USE (IEC_60559_FUNCS_EXT) || __GLIBC_USE (ISOC2X)
-# define __GLIBC_USE_IEC_60559_FUNCS_EXT_C2X 1
+#undef __GLIBC_USE_IEC_60559_FUNCS_EXT_C23
+#if __GLIBC_USE (IEC_60559_FUNCS_EXT) || __GLIBC_USE (ISOC23)
+# define __GLIBC_USE_IEC_60559_FUNCS_EXT_C23 1
 #else
-# define __GLIBC_USE_IEC_60559_FUNCS_EXT_C2X 0
+# define __GLIBC_USE_IEC_60559_FUNCS_EXT_C23 0
 #endif
 
 /* ISO/IEC TS 18661-3:2015 defines the

lib/libc/glibc/elf/elf.h

@@ -831,6 +831,10 @@ typedef struct
 					   control.  */
 #define NT_ARM_PAC_ENABLED_KEYS	0x40a	/* AArch64 pointer authentication
 					   enabled keys.  */
+#define NT_ARM_SSVE	0x40b		/* ARM Streaming SVE registers.  */
+#define NT_ARM_ZA	0x40c		/* ARM SME ZA registers.  */
+#define NT_ARM_ZT	0x40d		/* ARM SME ZT registers.  */
+#define NT_ARM_FPMR	0x40e		/* ARM floating point mode register.  */
 #define NT_VMCOREDD	0x700		/* Vmcore Device Dump Note.  */
 #define NT_MIPS_DSP	0x800		/* MIPS DSP ASE registers.  */
 #define NT_MIPS_FP_MODE	0x801		/* MIPS floating-point mode.  */
@@ -1234,6 +1238,10 @@ typedef struct
 #define AT_RSEQ_FEATURE_SIZE	27	/* rseq supported feature size.  */
 #define AT_RSEQ_ALIGN	28		/* rseq allocation alignment.  */
 
+/* More machine-dependent hints about processor capabilities.  */
+#define AT_HWCAP3	29		/* extension of AT_HWCAP.  */
+#define AT_HWCAP4	30		/* extension of AT_HWCAP.  */
+
 #define AT_EXECFN	31		/* Filename of executable.  */
 
 /* Pointer to the global system page used for system calls and other
@@ -1333,9 +1341,13 @@ typedef struct
 #define NT_GNU_PROPERTY_TYPE_0 5
 
 /* Packaging metadata as defined on
-   https://systemd.io/COREDUMP_PACKAGE_METADATA/ */
+   https://systemd.io/ELF_PACKAGE_METADATA/ */
 #define NT_FDO_PACKAGING_METADATA 0xcafe1a7e
 
+/* dlopen metadata as defined on
+   https://systemd.io/ELF_DLOPEN_METADATA/ */
+#define NT_FDO_DLOPEN_METADATA 0x407c0c0a
+
 /* Note section name of program property.   */
 #define NOTE_GNU_PROPERTY_SECTION_NAME ".note.gnu.property"
 
@@ -4237,6 +4249,8 @@ enum
 #define R_LARCH_TLS_TPREL32	10
 #define R_LARCH_TLS_TPREL64	11
 #define R_LARCH_IRELATIVE	12
+#define R_LARCH_TLS_DESC32	13
+#define R_LARCH_TLS_DESC64	14
 
 /* Reserved for future relocs that the dynamic linker must understand.  */
 
@@ -4331,6 +4345,23 @@ enum
 #define R_LARCH_ADD_ULEB128 107
 #define R_LARCH_SUB_ULEB128 108
 #define R_LARCH_64_PCREL 109
+#define R_LARCH_CALL36 110
+#define R_LARCH_TLS_DESC_PC_HI20 111
+#define R_LARCH_TLS_DESC_PC_LO12 112
+#define R_LARCH_TLS_DESC64_PC_LO20 113
+#define R_LARCH_TLS_DESC64_PC_HI12 114
+#define R_LARCH_TLS_DESC_HI20 115
+#define R_LARCH_TLS_DESC_LO12 116
+#define R_LARCH_TLS_DESC64_LO20 117
+#define R_LARCH_TLS_DESC64_HI12 118
+#define R_LARCH_TLS_DESC_LD 119
+#define R_LARCH_TLS_DESC_CALL 120
+#define R_LARCH_TLS_LE_HI20_R 121
+#define R_LARCH_TLS_LE_ADD_R 122
+#define R_LARCH_TLS_LE_LO12_R 123
+#define R_LARCH_TLS_LD_PCREL20_S2 124
+#define R_LARCH_TLS_GD_PCREL20_S2 125
+#define R_LARCH_TLS_DESC_PCREL20_S2 126
 
 /* ARC specific declarations.  */
 

lib/libc/glibc/include/libc-symbols.h

@@ -679,9 +679,9 @@ for linking")
 #endif
 
 /* Helper / base  macros for indirect function symbols.  */
-#define __ifunc_resolver(type_name, name, expr, arg, init, classifier)	\
+#define __ifunc_resolver(type_name, name, expr, init, classifier, ...)	\
   classifier inhibit_stack_protector					\
-  __typeof (type_name) *name##_ifunc (arg)				\
+  __typeof (type_name) *name##_ifunc (__VA_ARGS__)			\
   {									\
     init ();								\
     __typeof (type_name) *res = expr;					\
@@ -689,13 +689,13 @@ for linking")
   }
 
 #ifdef HAVE_GCC_IFUNC
-# define __ifunc(type_name, name, expr, arg, init)			\
+# define __ifunc_args(type_name, name, expr, init, ...)			\
   extern __typeof (type_name) name __attribute__			\
 			      ((ifunc (#name "_ifunc")));		\
-  __ifunc_resolver (type_name, name, expr, arg, init, static)
+  __ifunc_resolver (type_name, name, expr, init, static, __VA_ARGS__)
 
-# define __ifunc_hidden(type_name, name, expr, arg, init)	\
-  __ifunc (type_name, name, expr, arg, init)
+# define __ifunc_args_hidden(type_name, name, expr, init, ...)		\
+  __ifunc_args (type_name, name, expr, init, __VA_ARGS__)
 #else
 /* Gcc does not support __attribute__ ((ifunc (...))).  Use the old behaviour
    as fallback.  But keep in mind that the debug information for the ifunc
@@ -706,18 +706,24 @@ for linking")
    different signatures.  (Gcc support is disabled at least on a ppc64le
    Ubuntu 14.04 system.)  */
 
-# define __ifunc(type_name, name, expr, arg, init)			\
+# define __ifunc_args(type_name, name, expr, init, ...)			\
   extern __typeof (type_name) name;					\
-  __typeof (type_name) *name##_ifunc (arg) __asm__ (#name);		\
-  __ifunc_resolver (type_name, name, expr, arg, init,)			\
+  __typeof (type_name) *name##_ifunc (__VA_ARGS__) __asm__ (#name);	\
+  __ifunc_resolver (type_name, name, expr, init, , __VA_ARGS__)		\
  __asm__ (".type " #name ", %gnu_indirect_function");
 
-# define __ifunc_hidden(type_name, name, expr, arg, init)		\
+# define __ifunc_args_hidden(type_name, name, expr, init, ...)		\
   extern __typeof (type_name) __libc_##name;				\
-  __ifunc (type_name, __libc_##name, expr, arg, init)			\
+  __ifunc (type_name, __libc_##name, expr, __VA_ARGS__, init)		\
   strong_alias (__libc_##name, name);
 #endif /* !HAVE_GCC_IFUNC  */
 
+#define __ifunc(type_name, name, expr, arg, init)			\
+  __ifunc_args (type_name, name, expr, init, arg)
+
+#define __ifunc_hidden(type_name, name, expr, arg, init)		\
+  __ifunc_args_hidden (type_name, name, expr, init, arg)
+
 /* The following macros are used for indirect function symbols in libc.so.
    First of all, you need to have the function prototyped somewhere,
    say in foo.h:

lib/libc/glibc/include/stdlib.h

@@ -53,8 +53,8 @@ libc_hidden_proto (__isoc23_strtoul_l)
 libc_hidden_proto (__isoc23_strtoll_l)
 libc_hidden_proto (__isoc23_strtoull_l)
 
-#if __GLIBC_USE (C2X_STRTOL)
-/* Redirect internal uses of these functions to the C2X versions; the
+#if __GLIBC_USE (C23_STRTOL)
+/* Redirect internal uses of these functions to the C23 versions; the
    redirection in the installed header does not work with
    libc_hidden_proto.  */
 # undef strtol

lib/libc/glibc/io/fcntl.h

@@ -176,7 +176,7 @@ typedef __pid_t pid_t;
 
    This function is a cancellation point and therefore not marked with
    __THROW.  */
-#ifndef __USE_TIME_BITS64
+#ifndef __USE_TIME64_REDIRECTS
 # ifndef __USE_FILE_OFFSET64
 extern int fcntl (int __fd, int __cmd, ...);
 # else
@@ -189,7 +189,7 @@ extern int __REDIRECT (fcntl, (int __fd, int __cmd, ...), fcntl64);
 # ifdef __USE_LARGEFILE64
 extern int fcntl64 (int __fd, int __cmd, ...);
 # endif
-#else /* __USE_TIME_BITS64 */
+#else /* __USE_TIME64_REDIRECTS */
 # ifdef __REDIRECT
 extern int __REDIRECT_NTH (fcntl, (int __fd, int __request, ...),
 			   __fcntl_time64);
@@ -344,8 +344,7 @@ extern int posix_fallocate64 (int __fd, off64_t __offset, off64_t __len);
 
 
 /* Define some inlines helping to catch common problems.  */
-#if __USE_FORTIFY_LEVEL > 0 && defined __fortify_function \
-    && defined __va_arg_pack_len
+#if __USE_FORTIFY_LEVEL > 0 && defined __fortify_function
 # include <bits/fcntl2.h>
 #endif
 

lib/libc/glibc/io/sys/stat.h

@@ -209,7 +209,7 @@ extern int stat (const char *__restrict __file,
    that file descriptor FD is open on and put them in BUF.  */
 extern int fstat (int __fd, struct stat *__buf) __THROW __nonnull ((2));
 #else
-# ifdef __USE_TIME_BITS64
+# ifdef __USE_TIME64_REDIRECTS
 #  ifdef __REDIRECT_NTH
 extern int __REDIRECT_NTH (stat, (const char *__restrict __file,
 				  struct stat *__restrict __buf),
@@ -236,7 +236,7 @@ extern int __REDIRECT_NTH (fstat, (int __fd, struct stat *__buf), fstat64)
 # endif
 #endif
 #ifdef __USE_LARGEFILE64
-# ifndef __USE_TIME_BITS64
+# ifndef __USE_TIME64_REDIRECTS
 extern int stat64 (const char *__restrict __file,
 		   struct stat64 *__restrict __buf) __THROW __nonnull ((1, 2));
 extern int fstat64 (int __fd, struct stat64 *__buf) __THROW __nonnull ((2));
@@ -265,7 +265,7 @@ extern int fstatat (int __fd, const char *__restrict __file,
 		    struct stat *__restrict __buf, int __flag)
      __THROW __nonnull ((2, 3));
 # else
-#  ifdef __USE_TIME_BITS64
+#  ifdef __USE_TIME64_REDIRECTS
 #   ifdef __REDIRECT_NTH
 extern int __REDIRECT_NTH (fstatat, (int __fd, const char *__restrict __file,
 				     struct stat *__restrict __buf,
@@ -287,7 +287,7 @@ extern int __REDIRECT_NTH (fstatat, (int __fd, const char *__restrict __file,
 # endif
 
 # ifdef __USE_LARGEFILE64
-#  ifndef __USE_TIME_BITS64
+#  ifndef __USE_TIME64_REDIRECTS
 extern int fstatat64 (int __fd, const char *__restrict __file,
 		      struct stat64 *__restrict __buf, int __flag)
      __THROW __nonnull ((2, 3));
@@ -313,7 +313,7 @@ extern int __REDIRECT_NTH (fstatat64, (int __fd,
 extern int lstat (const char *__restrict __file,
 		  struct stat *__restrict __buf) __THROW __nonnull ((1, 2));
 # else
-#  ifdef __USE_TIME_BITS64
+#  ifdef __USE_TIME64_REDIRECTS
 #   ifdef __REDIRECT_NTH
 extern int __REDIRECT_NTH (lstat,
 			   (const char *__restrict __file,
@@ -334,7 +334,7 @@ extern int __REDIRECT_NTH (lstat,
 #  endif
 # endif
 # ifdef __USE_LARGEFILE64
-#  ifndef __USE_TIME_BITS64
+#  ifndef __USE_TIME64_REDIRECTS
 extern int lstat64 (const char *__restrict __file,
 		    struct stat64 *__restrict __buf)
      __THROW __nonnull ((1, 2));
@@ -427,7 +427,7 @@ extern int mkfifoat (int __fd, const char *__path, __mode_t __mode)
 #endif
 
 #ifdef __USE_ATFILE
-# ifndef __USE_TIME_BITS64
+# ifndef __USE_TIME64_REDIRECTS
 /* Set file access and modification times relative to directory file
    descriptor.  */
 extern int utimensat (int __fd, const char *__path,
@@ -447,7 +447,7 @@ extern int __REDIRECT_NTH (utimensat, (int fd, const char *__path,
 #endif
 
 #ifdef __USE_XOPEN2K8
-# ifndef __USE_TIME_BITS64
+# ifndef __USE_TIME64_REDIRECTS
 /* Set file access and modification times of the file associated with FD.  */
 extern int futimens (int __fd, const struct timespec __times[2]) __THROW;
 

lib/libc/glibc/misc/sys/cdefs.h

@@ -145,6 +145,14 @@
 #endif
 
 
+/* The overloadable attribute was added on clang 2.6. */
+#if defined __clang_major__ \
+    && (__clang_major__ + (__clang_minor__ >= 6) > 2)
+# define __attribute_overloadable__ __attribute__((__overloadable__))
+#else
+# define __attribute_overloadable__
+#endif
+
 /* Fortify support.  */
 #define __bos(ptr) __builtin_object_size (ptr, __USE_FORTIFY_LEVEL > 1)
 #define __bos0(ptr) __builtin_object_size (ptr, 0)
@@ -187,27 +195,173 @@
 						   __s, __osz))		      \
    && !__glibc_safe_len_cond ((__SIZE_TYPE__) (__l), __s, __osz))
 
+/* To correctly instrument the fortify wrapper clang requires the
+   pass_object_size attribute, and the attribute has the restriction that the
+   argument needs to be 'const'.  Furthermore, to make it usable with C
+   interfaces, clang provides the overload attribute, which provides a C++
+   like function overload support.  The overloaded fortify wrapper with the
+   pass_object_size attribute has precedence over the default symbol.
+
+   Also, clang does not support __va_arg_pack, so variadic functions are
+   expanded to issue va_arg implementations. The error function must not have
+   bodies (address takes are expanded to nonfortified calls), and with
+   __fortify_function compiler might still create a body with the C++
+   mangling name (due to the overload attribute).  In this case, the function
+   is defined with __fortify_function_error_function macro instead.
+
+   The argument size check is also done with a clang-only attribute,
+   __attribute__ ((__diagnose_if__ (...))), different than gcc which calls
+   symbol_chk_warn alias with uses __warnattr attribute.
+
+   The pass_object_size was added on clang 4.0, __diagnose_if__ on 5.0,
+   and pass_dynamic_object_size on 9.0.  */
+#if defined __clang_major__ && __clang_major__ >= 5
+# define __fortify_use_clang 1
+
+# define __fortify_function_error_function static __attribute__((__unused__))
+
+# define __fortify_clang_pass_object_size_n(n) \
+  __attribute__ ((__pass_object_size__ (n)))
+# define __fortify_clang_pass_object_size0 \
+  __fortify_clang_pass_object_size_n (0)
+# define __fortify_clang_pass_object_size \
+  __fortify_clang_pass_object_size_n (__USE_FORTIFY_LEVEL > 1)
+
+# if __clang_major__ >= 9
+#  define __fortify_clang_pass_dynamic_object_size_n(n) \
+  __attribute__ ((__pass_dynamic_object_size__ (n)))
+#  define __fortify_clang_pass_dynamic_object_size0 \
+  __fortify_clang_pass_dynamic_object_size_n (0)
+#  define __fortify_clang_pass_dynamic_object_size \
+  __fortify_clang_pass_dynamic_object_size_n (1)
+# else
+#  define __fortify_clang_pass_dynamic_object_size_n(n)
+#  define __fortify_clang_pass_dynamic_object_size0
+#  define __fortify_clang_pass_dynamic_object_size
+# endif
+
+# define __fortify_clang_bos_static_lt_impl(bos_val, n, s) \
+  ((bos_val) != -1ULL && (n) > (bos_val) / (s))
+# define __fortify_clang_bos_static_lt2(__n, __e, __s) \
+  __fortify_clang_bos_static_lt_impl (__bos (__e), __n, __s)
+# define __fortify_clang_bos_static_lt(__n, __e) \
+  __fortify_clang_bos_static_lt2 (__n, __e, 1)
+# define __fortify_clang_bos0_static_lt2(__n, __e, __s) \
+  __fortify_clang_bos_static_lt_impl (__bos0 (__e), __n, __s)
+# define __fortify_clang_bos0_static_lt(__n, __e) \
+  __fortify_clang_bos0_static_lt2 (__n, __e, 1)
+
+# define __fortify_clang_bosn_args(bos_fn, n, buf, div, complaint) \
+  (__fortify_clang_bos_static_lt_impl (bos_fn (buf), n, div)), (complaint), \
+  "warning"
+
+# define __fortify_clang_warning(__c, __msg) \
+  __attribute__ ((__diagnose_if__ ((__c), (__msg), "warning")))
+#  define __fortify_clang_error(__c, __msg) \
+  __attribute__ ((__diagnose_if__ ((__c), (__msg), "error")))
+#  define __fortify_clang_warning_only_if_bos0_lt(n, buf, complaint) \
+  __attribute__ ((__diagnose_if__ \
+		  (__fortify_clang_bosn_args (__bos0, n, buf, 1, complaint))))
+# define __fortify_clang_warning_only_if_bos0_lt2(n, buf, div, complaint) \
+  __attribute__ ((__diagnose_if__ \
+		  (__fortify_clang_bosn_args (__bos0, n, buf, div, complaint))))
+# define __fortify_clang_warning_only_if_bos_lt(n, buf, complaint) \
+  __attribute__ ((__diagnose_if__ \
+		  (__fortify_clang_bosn_args (__bos, n, buf, 1, complaint))))
+# define __fortify_clang_warning_only_if_bos_lt2(n, buf, div, complaint) \
+  __attribute__ ((__diagnose_if__ \
+		  (__fortify_clang_bosn_args (__bos, n, buf, div, complaint))))
+
+#  define __fortify_clang_prefer_this_overload \
+  __attribute__ ((enable_if (1, "")))
+#  define __fortify_clang_unavailable(__msg) \
+  __attribute__ ((unavailable(__msg)))
+
+# if __USE_FORTIFY_LEVEL == 3
+#  define __fortify_clang_overload_arg(__type, __attr, __name) \
+  __type __attr const __fortify_clang_pass_dynamic_object_size __name
+#  define __fortify_clang_overload_arg0(__type, __attr, __name) \
+  __type __attr const __fortify_clang_pass_dynamic_object_size0 __name
+# else
+#  define __fortify_clang_overload_arg(__type, __attr, __name) \
+  __type __attr const __fortify_clang_pass_object_size __name
+#  define __fortify_clang_overload_arg0(__type, __attr, __name) \
+  __type __attr const __fortify_clang_pass_object_size0 __name
+# endif
+
+# define __fortify_clang_mul_may_overflow(size, n) \
+  ((size | n) >= (((size_t)1) << (8 * sizeof (size_t) / 2)))
+
+# define __fortify_clang_size_too_small(__bos, __dest, __len) \
+  (__bos (__dest) != (size_t) -1 && __bos (__dest) < __len)
+# define __fortify_clang_warn_if_src_too_large(__dest, __src) \
+  __fortify_clang_warning (__fortify_clang_size_too_small (__glibc_objsize, \
+							   __dest, \
+							   __builtin_strlen (__src) + 1), \
+			   "destination buffer will always be overflown by source")
+# define __fortify_clang_warn_if_dest_too_small(__dest, __len) \
+  __fortify_clang_warning (__fortify_clang_size_too_small (__glibc_objsize, \
+                                                           __dest, \
+                                                           __len), \
+                           "function called with bigger length than the destination buffer")
+# define __fortify_clang_warn_if_dest_too_small0(__dest, __len) \
+  __fortify_clang_warning (__fortify_clang_size_too_small (__glibc_objsize0, \
+                                                           __dest, \
+                                                           __len), \
+                           "function called with bigger length than the destination buffer")
+#else
+# define __fortify_use_clang 0
+# define __fortify_clang_warning(__c, __msg)
+# define __fortify_clang_warning_only_if_bos0_lt(__n, __buf, __complaint)
+# define __fortify_clang_warning_only_if_bos0_lt2(__n, __buf, __div, complaint)
+# define __fortify_clang_warning_only_if_bos_lt(__n, __buf, __complaint)
+# define __fortify_clang_warning_only_if_bos_lt2(__n, __buf, div, __complaint)
+# define __fortify_clang_overload_arg(__type, __attr, __name) \
+ __type __attr __name
+# define __fortify_clang_overload_arg0(__type, __attr, __name) \
+  __fortify_clang_overload_arg (__type, __attr, __name)
+# define __fortify_clang_warn_if_src_too_large(__dest, __src)
+# define __fortify_clang_warn_if_dest_too_small(__dest, __len)
+# define __fortify_clang_warn_if_dest_too_small0(__dest, __len)
+#endif
+
+
 /* Fortify function f.  __f_alias, __f_chk and __f_chk_warn must be
    declared.  */
 
-#define __glibc_fortify(f, __l, __s, __osz, ...) \
+#if !__fortify_use_clang
+# define __glibc_fortify(f, __l, __s, __osz, ...) \
   (__glibc_safe_or_unknown_len (__l, __s, __osz)			      \
    ? __ ## f ## _alias (__VA_ARGS__)					      \
    : (__glibc_unsafe_len (__l, __s, __osz)				      \
       ? __ ## f ## _chk_warn (__VA_ARGS__, __osz)			      \
       : __ ## f ## _chk (__VA_ARGS__, __osz)))
+#else
+# define __glibc_fortify(f, __l, __s, __osz, ...) \
+  (__osz == (__SIZE_TYPE__) -1)						      \
+   ? __ ## f ## _alias (__VA_ARGS__)					      \
+   : __ ## f ## _chk (__VA_ARGS__, __osz)
+#endif
 
 /* Fortify function f, where object size argument passed to f is the number of
    elements and not total size.  */
 
-#define __glibc_fortify_n(f, __l, __s, __osz, ...) \
+#if !__fortify_use_clang
+# define __glibc_fortify_n(f, __l, __s, __osz, ...) \
   (__glibc_safe_or_unknown_len (__l, __s, __osz)			      \
    ? __ ## f ## _alias (__VA_ARGS__)					      \
    : (__glibc_unsafe_len (__l, __s, __osz)				      \
       ? __ ## f ## _chk_warn (__VA_ARGS__, (__osz) / (__s))		      \
       : __ ## f ## _chk (__VA_ARGS__, (__osz) / (__s))))
+# else
+# define __glibc_fortify_n(f, __l, __s, __osz, ...) \
+  (__osz == (__SIZE_TYPE__) -1)						      \
+   ? __ ## f ## _alias (__VA_ARGS__)					      \
+   : __ ## f ## _chk (__VA_ARGS__, (__osz) / (__s))
 #endif
 
+#endif /* __USE_FORTIFY_LEVEL > 0 */
+
 #if __GNUC_PREREQ (4,3)
 # define __warnattr(msg) __attribute__((__warning__ (msg)))
 # define __errordecl(name, msg) \
@@ -683,10 +837,10 @@ _Static_assert (0, "IEEE 128-bits long double requires redirection on this platf
 #  define __attr_access(x) __attribute__ ((__access__ x))
 /* For _FORTIFY_SOURCE == 3 we use __builtin_dynamic_object_size, which may
    use the access attribute to get object sizes from function definition
-   arguments, so we can't use them on functions we fortify.  Drop the object
-   size hints for such functions.  */
+   arguments, so we can't use them on functions we fortify.  Drop the access
+   attribute for such functions.  */
 #  if __USE_FORTIFY_LEVEL == 3
-#    define __fortified_attr_access(a, o, s) __attribute__ ((__access__ (a, o)))
+#    define __fortified_attr_access(a, o, s)
 #  else
 #    define __fortified_attr_access(a, o, s) __attr_access ((a, o, s))
 #  endif
@@ -720,4 +874,13 @@ _Static_assert (0, "IEEE 128-bits long double requires redirection on this platf
 # define __attribute_returns_twice__ /* Ignore.  */
 #endif
 
+/* Mark struct types as aliasable.  Restricted to compilers that
+   support forward declarations of structs in the presence of the
+   attribute.  */
+#if __GNUC_PREREQ (7, 1) || defined __clang__
+# define __attribute_struct_may_alias__ __attribute__ ((__may_alias__))
+#else
+# define __attribute_struct_may_alias__
+#endif
+
 #endif	 /* sys/cdefs.h */

lib/libc/glibc/misc/sys/select.h

@@ -98,7 +98,7 @@ __BEGIN_DECLS
 
    This function is a cancellation point and therefore not marked with
    __THROW.  */
-#ifndef __USE_TIME_BITS64
+#ifndef __USE_TIME64_REDIRECTS
 extern int select (int __nfds, fd_set *__restrict __readfds,
 		   fd_set *__restrict __writefds,
 		   fd_set *__restrict __exceptfds,
@@ -123,7 +123,7 @@ extern int __REDIRECT (select,
 
    This function is a cancellation point and therefore not marked with
    __THROW.  */
-# ifndef __USE_TIME_BITS64
+# ifndef __USE_TIME64_REDIRECTS
 extern int pselect (int __nfds, fd_set *__restrict __readfds,
 		    fd_set *__restrict __writefds,
 		    fd_set *__restrict __exceptfds,

lib/libc/glibc/signal/signal.h

@@ -269,7 +269,7 @@ extern int sigwaitinfo (const sigset_t *__restrict __set,
 
    This function is a cancellation point and therefore not marked with
    __THROW.  */
-#  ifndef __USE_TIME_BITS64
+#  ifndef __USE_TIME64_REDIRECTS
 extern int sigtimedwait (const sigset_t *__restrict __set,
 			 siginfo_t *__restrict __info,
 			 const struct timespec *__restrict __timeout)

lib/libc/glibc/stdlib/stdlib.h

@@ -210,7 +210,7 @@ extern unsigned long long int strtoull (const char *__restrict __nptr,
 
 /* Versions of the above functions that handle '0b' and '0B' prefixes
    in base 0 or 2.  */
-#if __GLIBC_USE (C2X_STRTOL)
+#if __GLIBC_USE (C23_STRTOL)
 # ifdef __REDIRECT
 extern long int __REDIRECT_NTH (strtol, (const char *__restrict __nptr,
 					 char **__restrict __endptr,
@@ -274,7 +274,7 @@ extern unsigned long long int __isoc23_strtoull (const char *__restrict __nptr,
 #endif
 
 /* Convert a floating-point number to a string.  */
-#if __GLIBC_USE (IEC_60559_BFP_EXT_C2X)
+#if __GLIBC_USE (IEC_60559_BFP_EXT_C23)
 extern int strfromd (char *__dest, size_t __size, const char *__format,
 		     double __f)
      __THROW __nonnull ((3));
@@ -360,7 +360,7 @@ extern unsigned long long int strtoull_l (const char *__restrict __nptr,
 
 /* Versions of the above functions that handle '0b' and '0B' prefixes
    in base 0 or 2.  */
-# if __GLIBC_USE (C2X_STRTOL)
+# if __GLIBC_USE (C23_STRTOL)
 #  ifdef __REDIRECT
 extern long int __REDIRECT_NTH (strtol_l, (const char *__restrict __nptr,
 					   char **__restrict __endptr,

lib/libc/glibc/sysdeps/htl/pthread.h

@@ -891,6 +891,17 @@ extern int pthread_setschedparam (pthread_t __thr, int __policy,
 /* Set thread THREAD's scheduling priority.  */
 extern int pthread_setschedprio (pthread_t __thr, int __prio) __THROW;
 
+#ifdef __USE_GNU
+/* Get thread name visible in the kernel and its interfaces.  */
+extern int pthread_getname_np (pthread_t __target_thread, char *__buf,
+			       size_t __buflen)
+     __THROW __nonnull ((2)) __attr_access ((__write_only__, 2));
+
+/* Set thread name visible in the kernel and its interfaces.  */
+extern int pthread_setname_np (pthread_t __target_thread, const char *__name)
+     __THROW __nonnull ((2)) __attr_access ((__read_only__, 2));
+#endif
+
 #ifdef __USE_GNU
 /* Yield the processor to another thread or process.
    This function is similar to the POSIX `sched_yield' function but

lib/libc/glibc/sysdeps/nptl/pthread.h

@@ -223,7 +223,7 @@ extern int pthread_join (pthread_t __th, void **__thread_return);
    the thread in *THREAD_RETURN, if THREAD_RETURN is not NULL.  */
 extern int pthread_tryjoin_np (pthread_t __th, void **__thread_return) __THROW;
 
-# ifndef __USE_TIME_BITS64
+# ifndef __USE_TIME64_REDIRECTS
 /* Make calling thread wait for termination of the thread TH, but only
    until TIMEOUT.  The exit status of the thread is stored in
    *THREAD_RETURN, if THREAD_RETURN is not NULL.
@@ -796,7 +796,7 @@ extern int pthread_mutex_lock (pthread_mutex_t *__mutex)
 
 #ifdef __USE_XOPEN2K
 /* Wait until lock becomes available, or specified time passes. */
-# ifndef __USE_TIME_BITS64
+# ifndef __USE_TIME64_REDIRECTS
 extern int pthread_mutex_timedlock (pthread_mutex_t *__restrict __mutex,
 				    const struct timespec *__restrict
 				    __abstime) __THROWNL __nonnull ((1, 2));
@@ -813,7 +813,7 @@ extern int __REDIRECT_NTHNL (pthread_mutex_timedlock,
 #endif
 
 #ifdef __USE_GNU
-# ifndef __USE_TIME_BITS64
+# ifndef __USE_TIME64_REDIRECTS
 extern int pthread_mutex_clocklock (pthread_mutex_t *__restrict __mutex,
 				    clockid_t __clockid,
 				    const struct timespec *__restrict
@@ -982,7 +982,7 @@ extern int pthread_rwlock_tryrdlock (pthread_rwlock_t *__rwlock)
 
 # ifdef __USE_XOPEN2K
 /* Try to acquire read lock for RWLOCK or return after specified time.  */
-#  ifndef __USE_TIME_BITS64
+#  ifndef __USE_TIME64_REDIRECTS
 extern int pthread_rwlock_timedrdlock (pthread_rwlock_t *__restrict __rwlock,
 				       const struct timespec *__restrict
 				       __abstime) __THROWNL __nonnull ((1, 2));
@@ -1000,7 +1000,7 @@ extern int __REDIRECT_NTHNL (pthread_rwlock_timedrdlock,
 # endif
 
 # ifdef __USE_GNU
-#  ifndef __USE_TIME_BITS64
+#  ifndef __USE_TIME64_REDIRECTS
 extern int pthread_rwlock_clockrdlock (pthread_rwlock_t *__restrict __rwlock,
 				       clockid_t __clockid,
 				       const struct timespec *__restrict
@@ -1029,7 +1029,7 @@ extern int pthread_rwlock_trywrlock (pthread_rwlock_t *__rwlock)
 
 # ifdef __USE_XOPEN2K
 /* Try to acquire write lock for RWLOCK or return after specified time.  */
-#  ifndef __USE_TIME_BITS64
+#  ifndef __USE_TIME64_REDIRECTS
 extern int pthread_rwlock_timedwrlock (pthread_rwlock_t *__restrict __rwlock,
 				       const struct timespec *__restrict
 				       __abstime) __THROWNL __nonnull ((1, 2));
@@ -1047,7 +1047,7 @@ extern int __REDIRECT_NTHNL (pthread_rwlock_timedwrlock,
 # endif
 
 # ifdef __USE_GNU
-#  ifndef __USE_TIME_BITS64
+#  ifndef __USE_TIME64_REDIRECTS
 extern int pthread_rwlock_clockwrlock (pthread_rwlock_t *__restrict __rwlock,
 				       clockid_t __clockid,
 				       const struct timespec *__restrict
@@ -1141,7 +1141,7 @@ extern int pthread_cond_wait (pthread_cond_t *__restrict __cond,
 
    This function is a cancellation point and therefore not marked with
    __THROW.  */
-# ifndef __USE_TIME_BITS64
+# ifndef __USE_TIME64_REDIRECTS
 extern int pthread_cond_timedwait (pthread_cond_t *__restrict __cond,
 				   pthread_mutex_t *__restrict __mutex,
 				   const struct timespec *__restrict __abstime)
@@ -1167,7 +1167,7 @@ extern int __REDIRECT (pthread_cond_timedwait,
 
    This function is a cancellation point and therefore not marked with
    __THROW. */
-#  ifndef __USE_TIME_BITS64
+#  ifndef __USE_TIME64_REDIRECTS
 extern int pthread_cond_clockwait (pthread_cond_t *__restrict __cond,
 				   pthread_mutex_t *__restrict __mutex,
 				   __clockid_t __clock_id,

lib/libc/glibc/sysdeps/unix/sysv/linux/bits/timex.h

@@ -25,7 +25,7 @@
 
 struct timex
 {
-# if defined __USE_TIME_BITS64 || (__TIMESIZE == 64 && __WORDSIZE == 32)
+# if defined __USE_TIME64_REDIRECTS || (__TIMESIZE == 64 && __WORDSIZE == 32)
   unsigned int modes;          /* mode selector */
   int :32;                     /* pad */
   long long offset;            /* time offset (usec) */

lib/libc/glibc/sysdeps/unix/sysv/linux/hppa/sysdep.h

@@ -468,6 +468,15 @@ L(pre_end):					ASM_LINE_SEP	\
 #define CLOB_ARGS_1 CLOB_ARGS_2, "%r25"
 #define CLOB_ARGS_0 CLOB_ARGS_1, "%r26"
 
+#define VDSO_NAME	"LINUX_6.11"
+#define VDSO_HASH	182951793
+
+#ifdef __LP64__
+# define HAVE_CLOCK_GETTIME_VSYSCALL    "__vdso_clock_gettime"
+#else
+# define HAVE_CLOCK_GETTIME64_VSYSCALL  "__vdso_clock_gettime64"
+#endif /* __LP64__ */
+
 #endif	/* __ASSEMBLER__ */
 
 #endif /* _LINUX_HPPA_SYSDEP_H */

lib/libc/glibc/sysdeps/unix/sysv/linux/riscv/sysdep.h

@@ -156,6 +156,7 @@
 /* List of system calls which are supported as vsyscalls (for RV32 and
    RV64).  */
 # define HAVE_GETCPU_VSYSCALL		"__vdso_getcpu"
+# define HAVE_RISCV_HWPROBE		"__vdso_riscv_hwprobe"
 
 # undef HAVE_INTERNAL_BRK_ADDR_SYMBOL
 # define HAVE_INTERNAL_BRK_ADDR_SYMBOL 1

lib/libc/glibc/sysdeps/unix/sysv/linux/sys/timex.h

@@ -54,7 +54,7 @@ struct ntptimeval
 
 __BEGIN_DECLS
 
-#ifndef __USE_TIME_BITS64
+#ifndef __USE_TIME64_REDIRECTS
 extern int adjtimex (struct timex *__ntx) __THROW __nonnull ((1));
 extern int ntp_gettimex (struct ntptimeval *__ntv) __THROW __nonnull ((1));
 

lib/libc/glibc/sysdeps/x86/bits/wordsize.h

@@ -8,10 +8,9 @@
 #define __WORDSIZE32_PTRDIFF_LONG	0
 #endif
 
+#define __WORDSIZE_TIME64_COMPAT32 1
+
 #ifdef __x86_64__
-# define __WORDSIZE_TIME64_COMPAT32	1
 /* Both x86-64 and x32 use the 64-bit system call interface.  */
 # define __SYSCALL_WORDSIZE		64
-#else
-# define __WORDSIZE_TIME64_COMPAT32	0
 #endif

lib/libc/glibc/sysdeps/x86/sysdep.h

@@ -21,14 +21,118 @@
 
 #include <sysdeps/generic/sysdep.h>
 
+/* The extended state feature IDs in the state component bitmap.  */
+#define X86_XSTATE_X87_ID	0
+#define X86_XSTATE_SSE_ID	1
+#define X86_XSTATE_AVX_ID	2
+#define X86_XSTATE_BNDREGS_ID	3
+#define X86_XSTATE_BNDCFG_ID	4
+#define X86_XSTATE_K_ID		5
+#define X86_XSTATE_ZMM_H_ID	6
+#define X86_XSTATE_ZMM_ID	7
+#define X86_XSTATE_PKRU_ID	9
+#define X86_XSTATE_TILECFG_ID	17
+#define X86_XSTATE_TILEDATA_ID	18
+#define X86_XSTATE_APX_F_ID	19
+
+#ifdef __x86_64__
 /* Offset for fxsave/xsave area used by _dl_runtime_resolve.  Also need
    space to preserve RCX, RDX, RSI, RDI, R8, R9 and RAX.  It must be
-   aligned to 16 bytes for fxsave and 64 bytes for xsave.  */
-#define STATE_SAVE_OFFSET (8 * 7 + 8)
+   aligned to 16 bytes for fxsave and 64 bytes for xsave.  It is non-zero
+   because MOV, instead of PUSH, is used to save registers onto stack.
 
-/* Save SSE, AVX, AVX512, mask and bound registers.  */
-#define STATE_SAVE_MASK \
-  ((1 << 1) | (1 << 2) | (1 << 3) | (1 << 5) | (1 << 6) | (1 << 7))
+   +==================+<- stack frame start aligned at 8 or 16 bytes
+   |                  |<- paddings for stack realignment of 64 bytes
+   |------------------|<- xsave buffer end aligned at 64 bytes
+   |                  |<-
+   |                  |<-
+   |                  |<-
+   |------------------|<- xsave buffer start at STATE_SAVE_OFFSET(%rsp)
+   |                  |<- 8-byte padding for 64-byte alignment
+   |                  |<- R9
+   |                  |<- R8
+   |                  |<- RDI
+   |                  |<- RSI
+   |                  |<- RDX
+   |                  |<- RCX
+   |                  |<- RAX
+   +==================+<- RSP aligned at 64 bytes
+
+ */
+# define STATE_SAVE_OFFSET (8 * 7 + 8)
+
+/* _dl_tlsdesc_dynamic preserves RDI, RSI and RBX before realigning
+   stack.  After realigning stack, it saves RCX, RDX, R8, R9, R10 and
+   R11.  Allocate space for RDI, RSI and RBX to avoid clobbering saved
+   RDI, RSI and RBX values on stack by xsave.
+
+   +==================+<- stack frame start aligned at 8 or 16 bytes
+   |                  |<- RDI saved in the red zone
+   |                  |<- RSI saved in the red zone
+   |                  |<- RBX saved in the red zone
+   |                  |<- paddings for stack realignment of 64 bytes
+   |------------------|<- xsave buffer end aligned at 64 bytes
+   |                  |<-
+   |                  |<-
+   |                  |<-
+   |------------------|<- xsave buffer start at STATE_SAVE_OFFSET(%rsp)
+   |                  |<- 8-byte padding for 64-byte alignment
+   |                  |<- 8-byte padding for 64-byte alignment
+   |                  |<- R11
+   |                  |<- R10
+   |                  |<- R9
+   |                  |<- R8
+   |                  |<- RDX
+   |                  |<- RCX
+   +==================+<- RSP aligned at 64 bytes
+
+   Define the total register save area size for all integer registers by
+   adding 24 to STATE_SAVE_OFFSET since RDI, RSI and RBX are saved onto
+   stack without adjusting stack pointer first, using the red-zone.  */
+# define TLSDESC_CALL_REGISTER_SAVE_AREA (STATE_SAVE_OFFSET + 24)
+
+/* Save SSE, AVX, AVX512, mask, bound and APX registers.  Bound and APX
+   registers are mutually exclusive.  */
+# define STATE_SAVE_MASK		\
+  ((1 << X86_XSTATE_SSE_ID)		\
+   | (1 << X86_XSTATE_AVX_ID)		\
+   | (1 << X86_XSTATE_BNDREGS_ID)	\
+   | (1 << X86_XSTATE_K_ID)		\
+   | (1 << X86_XSTATE_ZMM_H_ID) 	\
+   | (1 << X86_XSTATE_ZMM_ID)		\
+   | (1 << X86_XSTATE_APX_F_ID))
+
+/* AMX state mask.  */
+# define AMX_STATE_SAVE_MASK		\
+  ((1 << X86_XSTATE_TILECFG_ID) | (1 << X86_XSTATE_TILEDATA_ID))
+
+/* States to be included in xsave_state_full_size.  */
+# define FULL_STATE_SAVE_MASK		\
+  (STATE_SAVE_MASK | AMX_STATE_SAVE_MASK)
+#else
+/* Offset for fxsave/xsave area used by _dl_tlsdesc_dynamic.  Since i386
+   uses PUSH to save registers onto stack, use 0 here.  */
+# define STATE_SAVE_OFFSET 0
+# define TLSDESC_CALL_REGISTER_SAVE_AREA 0
+
+/* Save SSE, AVX, AXV512, mask and bound registers.   */
+# define STATE_SAVE_MASK		\
+  ((1 << X86_XSTATE_SSE_ID)		\
+   | (1 << X86_XSTATE_AVX_ID)		\
+   | (1 << X86_XSTATE_BNDREGS_ID)	\
+   | (1 << X86_XSTATE_K_ID)		\
+   | (1 << X86_XSTATE_ZMM_H_ID))
+
+/* States to be included in xsave_state_size.  */
+# define FULL_STATE_SAVE_MASK		STATE_SAVE_MASK
+#endif
+
+/* States which should be saved for TLSDESC_CALL and TLS_DESC_CALL.
+   Compiler assumes that all registers, including AMX and x87 FPU
+   stack registers, are unchanged after CALL, except for EFLAGS and
+   RAX/EAX.  */
+#define TLSDESC_CALL_STATE_SAVE_MASK	\
+  (FULL_STATE_SAVE_MASK | (1 << X86_XSTATE_X87_ID))
 
 /* Constants for bits in __x86_string_control:  */
 

lib/libc/glibc/time/bits/types/struct_timespec.h

@@ -10,14 +10,14 @@
    has nanoseconds instead of microseconds.  */
 struct timespec
 {
-#ifdef __USE_TIME_BITS64
+#ifdef __USE_TIME64_REDIRECTS
   __time64_t tv_sec;		/* Seconds.  */
 #else
   __time_t tv_sec;		/* Seconds.  */
 #endif
 #if __WORDSIZE == 64 \
   || (defined __SYSCALL_WORDSIZE && __SYSCALL_WORDSIZE == 64) \
-  || (__TIMESIZE == 32 && !defined __USE_TIME_BITS64)
+  || (__TIMESIZE == 32 && !defined __USE_TIME64_REDIRECTS)
   __syscall_slong_t tv_nsec;	/* Nanoseconds.  */
 #else
 # if __BYTE_ORDER == __BIG_ENDIAN

lib/libc/glibc/time/bits/types/struct_timeval.h

@@ -7,7 +7,7 @@
    microsecond but also has a range of years.  */
 struct timeval
 {
-#ifdef __USE_TIME_BITS64
+#ifdef __USE_TIME64_REDIRECTS
   __time64_t tv_sec;		/* Seconds.  */
   __suseconds64_t tv_usec;	/* Microseconds.  */
 #else

lib/libc/glibc/time/bits/types/time_t.h

@@ -4,7 +4,7 @@
 #include <bits/types.h>
 
 /* Returned by `time'.  */
-#ifdef __USE_TIME_BITS64
+#ifdef __USE_TIME64_REDIRECTS
 typedef __time64_t time_t;
 #else
 typedef __time_t time_t;