update glibc headers to 2.32

lib/libc/include/aarch64-linux-gnu/bits/hwcap.h

@@ -54,3 +54,22 @@
 #define HWCAP_SB		(1 << 29)
 #define HWCAP_PACA		(1 << 30)
 #define HWCAP_PACG		(1UL << 31)
+
+#define HWCAP2_DCPODP		(1 << 0)
+#define HWCAP2_SVE2		(1 << 1)
+#define HWCAP2_SVEAES		(1 << 2)
+#define HWCAP2_SVEPMULL		(1 << 3)
+#define HWCAP2_SVEBITPERM	(1 << 4)
+#define HWCAP2_SVESHA3		(1 << 5)
+#define HWCAP2_SVESM4		(1 << 6)
+#define HWCAP2_FLAGM2		(1 << 7)
+#define HWCAP2_FRINT		(1 << 8)
+#define HWCAP2_SVEI8MM		(1 << 9)
+#define HWCAP2_SVEF32MM		(1 << 10)
+#define HWCAP2_SVEF64MM		(1 << 11)
+#define HWCAP2_SVEBF16		(1 << 12)
+#define HWCAP2_I8MM		(1 << 13)
+#define HWCAP2_BF16		(1 << 14)
+#define HWCAP2_DGH		(1 << 15)
+#define HWCAP2_RNG		(1 << 16)
+#define HWCAP2_BTI		(1 << 17)

lib/libc/include/aarch64-linux-gnu/bits/long-double.h

@@ -18,4 +18,4 @@
 
 /* long double is distinct from double, so there is nothing to
    define here.  */
-#define __LONG_DOUBLE_USES_FLOAT128 0
+#define __LDOUBLE_REDIRECTS_TO_FLOAT128_ABI 0

lib/libc/include/aarch64-linux-gnu/bits/mman.h

@@ -1,5 +1,5 @@
-/* Define where padding goes in struct semid_ds.  SPARC version.
+/* Definitions for POSIX memory map interface.  Linux/AArch64 version.
-   Copyright (C) 2018-2020 Free Software Foundation, Inc.
+   Copyright (C) 2020 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -16,11 +16,16 @@
    License along with the GNU C Library; if not, see
    <https://www.gnu.org/licenses/>.  */
 
-#ifndef _SYS_SEM_H
+#ifndef _SYS_MMAN_H
-# error "Never use <bits/sem-pad.h> directly; include <sys/sem.h> instead."
+# error "Never use <bits/mman.h> directly; include <sys/mman.h> instead."
 #endif
 
-#include <bits/timesize.h>
+/* AArch64 specific definitions, should be in sync with
+   arch/arm64/include/uapi/asm/mman.h.  */
 
-#define __SEM_PAD_AFTER_TIME 0
+#define PROT_BTI	0x10
-#define __SEM_PAD_BEFORE_TIME (__TIMESIZE == 32)
+
+#include <bits/mman-map-flags-generic.h>
+
+/* Include generic Linux declarations.  */
+#include <bits/mman-linux.h>

lib/libc/include/aarch64-linux-gnu/bits/typesizes.h

@@ -26,31 +26,45 @@
 
 /* See <bits/types.h> for the meaning of these macros.  This file exists so
    that <bits/types.h> need not vary across different GNU platforms.  */
+#if __TIMESIZE == 64 && __WORDSIZE == 32
+/* These are the "new" y2038 types defined for architectures added after
+   the 5.1 kernel.  */
+# define __INO_T_TYPE		__UQUAD_TYPE
+# define __OFF_T_TYPE		__SQUAD_TYPE
+# define __RLIM_T_TYPE		__UQUAD_TYPE
+# define __BLKCNT_T_TYPE	__SQUAD_TYPE
+# define __FSBLKCNT_T_TYPE	__UQUAD_TYPE
+# define __FSFILCNT_T_TYPE	__UQUAD_TYPE
+# define __TIME_T_TYPE		__SQUAD_TYPE
+# define __SUSECONDS_T_TYPE	__SQUAD_TYPE
+#else
+# define __INO_T_TYPE		__ULONGWORD_TYPE
+# define __OFF_T_TYPE		__SLONGWORD_TYPE
+# define __RLIM_T_TYPE		__ULONGWORD_TYPE
+# define __BLKCNT_T_TYPE	__SLONGWORD_TYPE
+# define __FSBLKCNT_T_TYPE	__ULONGWORD_TYPE
+# define __FSFILCNT_T_TYPE	__ULONGWORD_TYPE
+# define __TIME_T_TYPE		__SLONGWORD_TYPE
+# define __SUSECONDS_T_TYPE	__SLONGWORD_TYPE
+#endif
 
 #define __DEV_T_TYPE		__UQUAD_TYPE
 #define __UID_T_TYPE		__U32_TYPE
 #define __GID_T_TYPE		__U32_TYPE
-#define __INO_T_TYPE		__ULONGWORD_TYPE
 #define __INO64_T_TYPE		__UQUAD_TYPE
 #define __MODE_T_TYPE		__U32_TYPE
 #define __NLINK_T_TYPE		__U32_TYPE
-#define __OFF_T_TYPE		__SLONGWORD_TYPE
 #define __OFF64_T_TYPE		__SQUAD_TYPE
 #define __PID_T_TYPE		__S32_TYPE
-#define __RLIM_T_TYPE		__ULONGWORD_TYPE
 #define __RLIM64_T_TYPE		__UQUAD_TYPE
-#define	__BLKCNT_T_TYPE		__SLONGWORD_TYPE
 #define	__BLKCNT64_T_TYPE	__SQUAD_TYPE
-#define	__FSBLKCNT_T_TYPE	__ULONGWORD_TYPE
 #define	__FSBLKCNT64_T_TYPE	__UQUAD_TYPE
-#define	__FSFILCNT_T_TYPE	__ULONGWORD_TYPE
 #define	__FSFILCNT64_T_TYPE	__UQUAD_TYPE
 #define	__FSWORD_T_TYPE		__SWORD_TYPE
 #define	__ID_T_TYPE		__U32_TYPE
 #define __CLOCK_T_TYPE		__SLONGWORD_TYPE
-#define __TIME_T_TYPE		__SLONGWORD_TYPE
 #define __USECONDS_T_TYPE	__U32_TYPE
-#define __SUSECONDS_T_TYPE	__SLONGWORD_TYPE
+#define __SUSECONDS64_T_TYPE	__SQUAD_TYPE
 #define __DADDR_T_TYPE		__S32_TYPE
 #define __KEY_T_TYPE		__S32_TYPE
 #define __CLOCKID_T_TYPE	__S32_TYPE
@@ -62,7 +76,7 @@
 #define __SYSCALL_ULONG_TYPE	__ULONGWORD_TYPE
 #define __CPU_MASK_TYPE 	__ULONGWORD_TYPE
 
-#ifdef __LP64__
+#if defined __LP64__ || (__TIMESIZE == 64 && __WORDSIZE == 32)
 /* Tell the libc code that off_t and off64_t are actually the same type
    for all ABI purposes, even if possibly expressed as different base types
    for C type-checking purposes.  */
@@ -76,11 +90,17 @@
 
 /* And for fsblkcnt_t, fsblkcnt64_t, fsfilcnt_t and fsfilcnt64_t.  */
 # define __STATFS_MATCHES_STATFS64  1
+
+/* And for getitimer, setitimer and rusage  */
+# define __KERNEL_OLD_TIMEVAL_MATCHES_TIMEVAL64 (__WORDSIZE == 64)
 #else
 # define __RLIM_T_MATCHES_RLIM64_T	0
 
 # define __STATFS_MATCHES_STATFS64  0
+
+# define __KERNEL_OLD_TIMEVAL_MATCHES_TIMEVAL64 0
 #endif
+
 /* Number of descriptors that can fit in an `fd_set'.  */
 #define	__FD_SETSIZE		1024
 

lib/libc/include/aarch64-linux-gnu/gnu/lib-names-lp64.h

@@ -20,8 +20,6 @@
 #define LIBNSS_FILES_SO                 "libnss_files.so.2"
 #define LIBNSS_HESIOD_SO                "libnss_hesiod.so.2"
 #define LIBNSS_LDAP_SO                  "libnss_ldap.so.2"
-#define LIBNSS_NISPLUS_SO               "libnss_nisplus.so.2"
-#define LIBNSS_NIS_SO                   "libnss_nis.so.2"
 #define LIBNSS_TEST1_SO                 "libnss_test1.so.2"
 #define LIBNSS_TEST2_SO                 "libnss_test2.so.2"
 #define LIBPTHREAD_SO                   "libpthread.so.0"

lib/libc/include/aarch64-linux-gnu/gnu/stubs-lp64.h

@@ -15,10 +15,7 @@
 #define __stub_chflags
 #define __stub_fchflags
 #define __stub_gtty
-#define __stub_lchmod
 #define __stub_revoke
 #define __stub_setlogin
 #define __stub_sigreturn
-#define __stub_sstk
 #define __stub_stty
-#define __stub_sysctl

lib/libc/include/aarch64_be-linux-gnu/bits/hwcap.h

@@ -54,3 +54,22 @@
 #define HWCAP_SB		(1 << 29)
 #define HWCAP_PACA		(1 << 30)
 #define HWCAP_PACG		(1UL << 31)
+
+#define HWCAP2_DCPODP		(1 << 0)
+#define HWCAP2_SVE2		(1 << 1)
+#define HWCAP2_SVEAES		(1 << 2)
+#define HWCAP2_SVEPMULL		(1 << 3)
+#define HWCAP2_SVEBITPERM	(1 << 4)
+#define HWCAP2_SVESHA3		(1 << 5)
+#define HWCAP2_SVESM4		(1 << 6)
+#define HWCAP2_FLAGM2		(1 << 7)
+#define HWCAP2_FRINT		(1 << 8)
+#define HWCAP2_SVEI8MM		(1 << 9)
+#define HWCAP2_SVEF32MM		(1 << 10)
+#define HWCAP2_SVEF64MM		(1 << 11)
+#define HWCAP2_SVEBF16		(1 << 12)
+#define HWCAP2_I8MM		(1 << 13)
+#define HWCAP2_BF16		(1 << 14)
+#define HWCAP2_DGH		(1 << 15)
+#define HWCAP2_RNG		(1 << 16)
+#define HWCAP2_BTI		(1 << 17)

lib/libc/include/aarch64_be-linux-gnu/bits/long-double.h

@@ -18,4 +18,4 @@
 
 /* long double is distinct from double, so there is nothing to
    define here.  */
-#define __LONG_DOUBLE_USES_FLOAT128 0
+#define __LDOUBLE_REDIRECTS_TO_FLOAT128_ABI 0

lib/libc/include/aarch64_be-linux-gnu/bits/mman.h

@@ -1,5 +1,5 @@
-/* Define where padding goes in struct shmid_ds.  SPARC version.
+/* Definitions for POSIX memory map interface.  Linux/AArch64 version.
-   Copyright (C) 2018-2020 Free Software Foundation, Inc.
+   Copyright (C) 2020 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -16,13 +16,16 @@
    License along with the GNU C Library; if not, see
    <https://www.gnu.org/licenses/>.  */
 
-#ifndef _SYS_SHM_H
+#ifndef _SYS_MMAN_H
-# error "Never use <bits/shm-pad.h> directly; include <sys/shm.h> instead."
+# error "Never use <bits/mman.h> directly; include <sys/mman.h> instead."
 #endif
 
-#include <bits/timesize.h>
+/* AArch64 specific definitions, should be in sync with
+   arch/arm64/include/uapi/asm/mman.h.  */
 
-#define __SHM_PAD_AFTER_TIME 0
+#define PROT_BTI	0x10
-#define __SHM_PAD_BEFORE_TIME (__TIMESIZE == 32)
+
-#define __SHM_SEGSZ_AFTER_TIME 1
+#include <bits/mman-map-flags-generic.h>
-#define __SHM_PAD_BETWEEN_TIME_AND_SEGSZ 0
+
+/* Include generic Linux declarations.  */
+#include <bits/mman-linux.h>

lib/libc/include/aarch64_be-linux-gnu/bits/typesizes.h

@@ -26,31 +26,45 @@
 
 /* See <bits/types.h> for the meaning of these macros.  This file exists so
    that <bits/types.h> need not vary across different GNU platforms.  */
+#if __TIMESIZE == 64 && __WORDSIZE == 32
+/* These are the "new" y2038 types defined for architectures added after
+   the 5.1 kernel.  */
+# define __INO_T_TYPE		__UQUAD_TYPE
+# define __OFF_T_TYPE		__SQUAD_TYPE
+# define __RLIM_T_TYPE		__UQUAD_TYPE
+# define __BLKCNT_T_TYPE	__SQUAD_TYPE
+# define __FSBLKCNT_T_TYPE	__UQUAD_TYPE
+# define __FSFILCNT_T_TYPE	__UQUAD_TYPE
+# define __TIME_T_TYPE		__SQUAD_TYPE
+# define __SUSECONDS_T_TYPE	__SQUAD_TYPE
+#else
+# define __INO_T_TYPE		__ULONGWORD_TYPE
+# define __OFF_T_TYPE		__SLONGWORD_TYPE
+# define __RLIM_T_TYPE		__ULONGWORD_TYPE
+# define __BLKCNT_T_TYPE	__SLONGWORD_TYPE
+# define __FSBLKCNT_T_TYPE	__ULONGWORD_TYPE
+# define __FSFILCNT_T_TYPE	__ULONGWORD_TYPE
+# define __TIME_T_TYPE		__SLONGWORD_TYPE
+# define __SUSECONDS_T_TYPE	__SLONGWORD_TYPE
+#endif
 
 #define __DEV_T_TYPE		__UQUAD_TYPE
 #define __UID_T_TYPE		__U32_TYPE
 #define __GID_T_TYPE		__U32_TYPE
-#define __INO_T_TYPE		__ULONGWORD_TYPE
 #define __INO64_T_TYPE		__UQUAD_TYPE
 #define __MODE_T_TYPE		__U32_TYPE
 #define __NLINK_T_TYPE		__U32_TYPE
-#define __OFF_T_TYPE		__SLONGWORD_TYPE
 #define __OFF64_T_TYPE		__SQUAD_TYPE
 #define __PID_T_TYPE		__S32_TYPE
-#define __RLIM_T_TYPE		__ULONGWORD_TYPE
 #define __RLIM64_T_TYPE		__UQUAD_TYPE
-#define	__BLKCNT_T_TYPE		__SLONGWORD_TYPE
 #define	__BLKCNT64_T_TYPE	__SQUAD_TYPE
-#define	__FSBLKCNT_T_TYPE	__ULONGWORD_TYPE
 #define	__FSBLKCNT64_T_TYPE	__UQUAD_TYPE
-#define	__FSFILCNT_T_TYPE	__ULONGWORD_TYPE
 #define	__FSFILCNT64_T_TYPE	__UQUAD_TYPE
 #define	__FSWORD_T_TYPE		__SWORD_TYPE
 #define	__ID_T_TYPE		__U32_TYPE
 #define __CLOCK_T_TYPE		__SLONGWORD_TYPE
-#define __TIME_T_TYPE		__SLONGWORD_TYPE
 #define __USECONDS_T_TYPE	__U32_TYPE
-#define __SUSECONDS_T_TYPE	__SLONGWORD_TYPE
+#define __SUSECONDS64_T_TYPE	__SQUAD_TYPE
 #define __DADDR_T_TYPE		__S32_TYPE
 #define __KEY_T_TYPE		__S32_TYPE
 #define __CLOCKID_T_TYPE	__S32_TYPE
@@ -62,7 +76,7 @@
 #define __SYSCALL_ULONG_TYPE	__ULONGWORD_TYPE
 #define __CPU_MASK_TYPE 	__ULONGWORD_TYPE
 
-#ifdef __LP64__
+#if defined __LP64__ || (__TIMESIZE == 64 && __WORDSIZE == 32)
 /* Tell the libc code that off_t and off64_t are actually the same type
    for all ABI purposes, even if possibly expressed as different base types
    for C type-checking purposes.  */
@@ -76,11 +90,17 @@
 
 /* And for fsblkcnt_t, fsblkcnt64_t, fsfilcnt_t and fsfilcnt64_t.  */
 # define __STATFS_MATCHES_STATFS64  1
+
+/* And for getitimer, setitimer and rusage  */
+# define __KERNEL_OLD_TIMEVAL_MATCHES_TIMEVAL64 (__WORDSIZE == 64)
 #else
 # define __RLIM_T_MATCHES_RLIM64_T	0
 
 # define __STATFS_MATCHES_STATFS64  0
+
+# define __KERNEL_OLD_TIMEVAL_MATCHES_TIMEVAL64 0
 #endif
+
 /* Number of descriptors that can fit in an `fd_set'.  */
 #define	__FD_SETSIZE		1024
 

lib/libc/include/aarch64_be-linux-gnu/gnu/lib-names-lp64_be.h

@@ -20,8 +20,6 @@
 #define LIBNSS_FILES_SO                 "libnss_files.so.2"
 #define LIBNSS_HESIOD_SO                "libnss_hesiod.so.2"
 #define LIBNSS_LDAP_SO                  "libnss_ldap.so.2"
-#define LIBNSS_NISPLUS_SO               "libnss_nisplus.so.2"
-#define LIBNSS_NIS_SO                   "libnss_nis.so.2"
 #define LIBNSS_TEST1_SO                 "libnss_test1.so.2"
 #define LIBNSS_TEST2_SO                 "libnss_test2.so.2"
 #define LIBPTHREAD_SO                   "libpthread.so.0"

lib/libc/include/aarch64_be-linux-gnu/gnu/stubs-lp64_be.h

@@ -15,10 +15,7 @@
 #define __stub_chflags
 #define __stub_fchflags
 #define __stub_gtty
-#define __stub_lchmod
 #define __stub_revoke
 #define __stub_setlogin
 #define __stub_sigreturn
-#define __stub_sstk
 #define __stub_stty
-#define __stub_sysctl

lib/libc/include/arm-linux-gnueabi/bits/long-double.h

@@ -37,4 +37,17 @@
 #ifndef __NO_LONG_DOUBLE_MATH
 # define __NO_LONG_DOUBLE_MATH	1
 #endif
-#define __LONG_DOUBLE_USES_FLOAT128 0
+
+/* The macro __LDOUBLE_REDIRECTS_TO_FLOAT128_ABI is used to determine the
+   choice of the underlying ABI of long double.  It will always assume
+   a constant value for each translation unit.
+
+   If the value is non-zero, any API which is parameterized by the long
+   double type (i.e the scanf/printf family of functions or the explicitly
+   parameterized math.h functions) will be redirected to a compatible
+   implementation using _Float128 ABI via symbols suffixed with ieee128.
+
+   The mechanism this macro uses to acquire may be a function
+   of architecture, or target specific options used to invoke the
+   compiler.  */
+#define __LDOUBLE_REDIRECTS_TO_FLOAT128_ABI 0

lib/libc/include/arm-linux-gnueabihf/bits/long-double.h

@@ -37,4 +37,17 @@
 #ifndef __NO_LONG_DOUBLE_MATH
 # define __NO_LONG_DOUBLE_MATH	1
 #endif
-#define __LONG_DOUBLE_USES_FLOAT128 0
+
+/* The macro __LDOUBLE_REDIRECTS_TO_FLOAT128_ABI is used to determine the
+   choice of the underlying ABI of long double.  It will always assume
+   a constant value for each translation unit.
+
+   If the value is non-zero, any API which is parameterized by the long
+   double type (i.e the scanf/printf family of functions or the explicitly
+   parameterized math.h functions) will be redirected to a compatible
+   implementation using _Float128 ABI via symbols suffixed with ieee128.
+
+   The mechanism this macro uses to acquire may be a function
+   of architecture, or target specific options used to invoke the
+   compiler.  */
+#define __LDOUBLE_REDIRECTS_TO_FLOAT128_ABI 0

lib/libc/include/armeb-linux-gnueabi/bits/long-double.h

@@ -37,4 +37,17 @@
 #ifndef __NO_LONG_DOUBLE_MATH
 # define __NO_LONG_DOUBLE_MATH	1
 #endif
-#define __LONG_DOUBLE_USES_FLOAT128 0
+
+/* The macro __LDOUBLE_REDIRECTS_TO_FLOAT128_ABI is used to determine the
+   choice of the underlying ABI of long double.  It will always assume
+   a constant value for each translation unit.
+
+   If the value is non-zero, any API which is parameterized by the long
+   double type (i.e the scanf/printf family of functions or the explicitly
+   parameterized math.h functions) will be redirected to a compatible
+   implementation using _Float128 ABI via symbols suffixed with ieee128.
+
+   The mechanism this macro uses to acquire may be a function
+   of architecture, or target specific options used to invoke the
+   compiler.  */
+#define __LDOUBLE_REDIRECTS_TO_FLOAT128_ABI 0

lib/libc/include/armeb-linux-gnueabihf/bits/long-double.h

@@ -37,4 +37,17 @@
 #ifndef __NO_LONG_DOUBLE_MATH
 # define __NO_LONG_DOUBLE_MATH	1
 #endif
-#define __LONG_DOUBLE_USES_FLOAT128 0
+
+/* The macro __LDOUBLE_REDIRECTS_TO_FLOAT128_ABI is used to determine the
+   choice of the underlying ABI of long double.  It will always assume
+   a constant value for each translation unit.
+
+   If the value is non-zero, any API which is parameterized by the long
+   double type (i.e the scanf/printf family of functions or the explicitly
+   parameterized math.h functions) will be redirected to a compatible
+   implementation using _Float128 ABI via symbols suffixed with ieee128.
+
+   The mechanism this macro uses to acquire may be a function
+   of architecture, or target specific options used to invoke the
+   compiler.  */
+#define __LDOUBLE_REDIRECTS_TO_FLOAT128_ABI 0

lib/libc/include/generic-glibc/argp.h

@@ -554,7 +554,8 @@ __NTH (__option_is_end (const struct argp_option *__opt))
 # endif
 #endif /* Use extern inlines.  */
 
-#ifdef __LDBL_COMPAT
+#include <bits/floatn.h>
+#if defined __LDBL_COMPAT || __LDOUBLE_REDIRECTS_TO_FLOAT128_ABI == 1
 # include <bits/argp-ldbl.h>
 #endif
 

lib/libc/include/generic-glibc/bits/fcntl-linux.h

@@ -290,7 +290,8 @@ struct f_owner_ex
 
 #ifdef __USE_GNU
 /* Hint values for F_{GET,SET}_RW_HINT.  */
-# define RWF_WRITE_LIFE_NOT_SET	0
+# define RWH_WRITE_LIFE_NOT_SET	0
+# define RWF_WRITE_LIFE_NOT_SET	RWH_WRITE_LIFE_NOT_SET
 # define RWH_WRITE_LIFE_NONE	1
 # define RWH_WRITE_LIFE_SHORT	2
 # define RWH_WRITE_LIFE_MEDIUM	3

lib/libc/include/generic-glibc/bits/fenvinline.h

@@ -1,8 +0,0 @@
-/* This file provides inline versions of floating-pint environment
-   handling functions.  If there were any.  */
-
-#ifndef __NO_MATH_INLINES
-
-/* Here is where the code would go.  */
-
-#endif

lib/libc/include/generic-glibc/bits/floatn.h

@@ -1,4 +1,4 @@
-/* Macros to control TS 18661-3 glibc features on MIPS platforms.
+/* Macros to control TS 18661-3 glibc features on ldbl-128 platforms.
    Copyright (C) 2017-2020 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 

lib/libc/include/generic-glibc/bits/long-double.h

@@ -21,4 +21,4 @@
 #if !defined __NO_LONG_DOUBLE_MATH && _MIPS_SIM == _ABIO32
 # define __NO_LONG_DOUBLE_MATH	1
 #endif
-#define __LONG_DOUBLE_USES_FLOAT128 0
+#define __LDOUBLE_REDIRECTS_TO_FLOAT128_ABI 0

lib/libc/include/generic-glibc/bits/mathcalls-helper-functions.h

@@ -16,28 +16,30 @@
    License along with the GNU C Library; if not, see
    <https://www.gnu.org/licenses/>.  */
 
-
 /* Classify given number.  */
-__MATHDECL_1 (int, __fpclassify,, (_Mdouble_ __value))
+__MATHDECL_ALIAS (int, __fpclassify,, (_Mdouble_ __value), fpclassify)
      __attribute__ ((__const__));
 
 /* Test for negative number.  */
-__MATHDECL_1 (int, __signbit,, (_Mdouble_ __value))
+__MATHDECL_ALIAS (int, __signbit,, (_Mdouble_ __value), signbit)
      __attribute__ ((__const__));
 
 /* Return 0 if VALUE is finite or NaN, +1 if it
    is +Infinity, -1 if it is -Infinity.  */
-__MATHDECL_1 (int, __isinf,, (_Mdouble_ __value)) __attribute__ ((__const__));
+__MATHDECL_ALIAS (int, __isinf,, (_Mdouble_ __value), isinf)
+  __attribute__ ((__const__));
 
 /* Return nonzero if VALUE is finite and not NaN.  Used by isfinite macro.  */
-__MATHDECL_1 (int, __finite,, (_Mdouble_ __value)) __attribute__ ((__const__));
+__MATHDECL_ALIAS (int, __finite,, (_Mdouble_ __value), finite)
+  __attribute__ ((__const__));
 
 /* Return nonzero if VALUE is not a number.  */
-__MATHDECL_1 (int, __isnan,, (_Mdouble_ __value)) __attribute__ ((__const__));
+__MATHDECL_ALIAS (int, __isnan,, (_Mdouble_ __value), isnan)
+  __attribute__ ((__const__));
 
 /* Test equality.  */
-__MATHDECL_1 (int, __iseqsig,, (_Mdouble_ __x, _Mdouble_ __y));
+__MATHDECL_ALIAS (int, __iseqsig,, (_Mdouble_ __x, _Mdouble_ __y), iseqsig);
 
 /* Test for signaling NaN.  */
-__MATHDECL_1 (int, __issignaling,, (_Mdouble_ __value))
+__MATHDECL_ALIAS (int, __issignaling,, (_Mdouble_ __value), issignaling)
      __attribute__ ((__const__));

lib/libc/include/generic-glibc/bits/mathcalls.h

@@ -174,12 +174,14 @@ __MATHCALL (fmod,, (_Mdouble_ __x, _Mdouble_ __y));
       && !__MATH_DECLARING_FLOATN
 /* Return 0 if VALUE is finite or NaN, +1 if it
    is +Infinity, -1 if it is -Infinity.  */
-__MATHDECL_1 (int,isinf,, (_Mdouble_ __value)) __attribute__ ((__const__));
+__MATHDECL_ALIAS (int,isinf,, (_Mdouble_ __value), isinf)
+  __attribute__ ((__const__));
 # endif
 
 # if !__MATH_DECLARING_FLOATN
 /* Return nonzero if VALUE is finite and not NaN.  */
-__MATHDECL_1 (int,finite,, (_Mdouble_ __value)) __attribute__ ((__const__));
+__MATHDECL_ALIAS (int,finite,, (_Mdouble_ __value), finite)
+  __attribute__ ((__const__));
 
 /* Return the remainder of X/Y.  */
 __MATHCALL (drem,, (_Mdouble_ __x, _Mdouble_ __y));
@@ -208,7 +210,8 @@ __MATHCALL (nan,, (const char *__tagb));
        || __MATH_DECLARING_DOUBLE == 0)) /* isnanf or isnanl don't.  */ \
       && !__MATH_DECLARING_FLOATN
 /* Return nonzero if VALUE is not a number.  */
-__MATHDECL_1 (int,isnan,, (_Mdouble_ __value)) __attribute__ ((__const__));
+__MATHDECL_ALIAS (int,isnan,, (_Mdouble_ __value), isnan)
+  __attribute__ ((__const__));
 # endif
 #endif
 

lib/libc/include/generic-glibc/bits/mathinline.h

@@ -1,12 +0,0 @@
-/* This file should provide inline versions of math functions.
-
-   Surround GCC-specific parts with #ifdef __GNUC__, and use `__extern_inline'.
-
-   This file should define __MATH_INLINES if functions are actually defined as
-   inlines.  */
-
-#if !defined __NO_MATH_INLINES && defined __OPTIMIZE__
-
-/* Here goes the real code.  */
-
-#endif

lib/libc/include/generic-glibc/bits/mman-shared.h

@@ -24,6 +24,7 @@
 /* Flags for mremap.  */
 # define MREMAP_MAYMOVE	1
 # define MREMAP_FIXED	2
+# define MREMAP_DONTUNMAP 4
 
 /* Flags for memfd_create.  */
 # ifndef MFD_CLOEXEC

lib/libc/include/generic-glibc/bits/msq-pad.h

@@ -1,31 +0,0 @@
-/* Define where padding goes in struct msqid_ds.  Generic version.
-   Copyright (C) 2018-2020 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library; if not, see
-   <https://www.gnu.org/licenses/>.  */
-
-#ifndef _SYS_MSG_H
-# error "Never use <bits/msq-pad.h> directly; include <sys/msg.h> instead."
-#endif
-
-#include <bits/timesize.h>
-
-/* On most architectures, padding goes after time fields for 32-bit
-   systems and is omitted for 64-bit systems.  Some architectures pad
-   before time fields instead, or omit padding despite being
-   32-bit.  */
-
-#define __MSQ_PAD_AFTER_TIME (__TIMESIZE == 32)
-#define __MSQ_PAD_BEFORE_TIME 0

lib/libc/include/generic-glibc/bits/msq.h

@@ -20,7 +20,12 @@
 #endif
 
 #include <bits/types.h>
-#include <bits/msq-pad.h>
+
+/* Types used in the MSQID_DS structure definition.  */
+typedef __syscall_ulong_t msgqnum_t;
+typedef __syscall_ulong_t msglen_t;
+
+#include <bits/types/struct_msqid_ds.h>
 
 /* Define options for message queue functions.  */
 #define MSG_NOERROR	010000	/* no error if message is too big */
@@ -29,38 +34,6 @@
 # define MSG_COPY	040000	/* copy (not remove) all queue messages */
 #endif
 
-/* Types used in the structure definition.  */
-typedef __syscall_ulong_t msgqnum_t;
-typedef __syscall_ulong_t msglen_t;
-
-#if __MSQ_PAD_BEFORE_TIME
-# define __MSQ_PAD_TIME(NAME, RES)				\
-  unsigned long int __glibc_reserved ## RES; __time_t NAME
-#elif __MSQ_PAD_AFTER_TIME
-# define __MSQ_PAD_TIME(NAME, RES)				\
-  __time_t NAME; unsigned long int __glibc_reserved ## RES
-#else
-# define __MSQ_PAD_TIME(NAME, RES)		\
-  __time_t NAME
-#endif
-
-/* Structure of record for one message inside the kernel.
-   The type `struct msg' is opaque.  */
-struct msqid_ds
-{
-  struct ipc_perm msg_perm;	/* structure describing operation permission */
-  __MSQ_PAD_TIME (msg_stime, 1);	/* time of last msgsnd command */
-  __MSQ_PAD_TIME (msg_rtime, 2);	/* time of last msgrcv command */
-  __MSQ_PAD_TIME (msg_ctime, 3);	/* time of last change */
-  __syscall_ulong_t __msg_cbytes; /* current number of bytes on queue */
-  msgqnum_t msg_qnum;		/* number of messages currently on queue */
-  msglen_t msg_qbytes;		/* max number of bytes allowed on queue */
-  __pid_t msg_lspid;		/* pid of last msgsnd() */
-  __pid_t msg_lrpid;		/* pid of last msgrcv() */
-  __syscall_ulong_t __glibc_reserved4;
-  __syscall_ulong_t __glibc_reserved5;
-};
-
 #ifdef __USE_MISC
 
 # define msg_cbytes	__msg_cbytes

lib/libc/include/generic-glibc/bits/resource.h

@@ -98,7 +98,7 @@ enum __rlimit_resource
   __RLIMIT_RTPRIO = 14,
 #define RLIMIT_RTPRIO __RLIMIT_RTPRIO
 
-  /* Maximum CPU time in µs that a process scheduled under a real-time
+  /* Maximum CPU time in microseconds that a process scheduled under a real-time
      scheduling policy may consume without making a blocking system
      call before being forcibly descheduled.  */
   __RLIMIT_RTTIME = 15,

lib/libc/include/generic-glibc/bits/sem-pad.h

@@ -1,33 +0,0 @@
-/* Define where padding goes in struct semid_ds.  Generic version.
-   Copyright (C) 2018-2020 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library; if not, see
-   <https://www.gnu.org/licenses/>.  */
-
-#ifndef _SYS_SEM_H
-# error "Never use <bits/sem-pad.h> directly; include <sys/sem.h> instead."
-#endif
-
-#include <bits/timesize.h>
-
-/* On most architectures, padding goes after time fields for 32-bit
-   systems and is omitted for 64-bit systems.  Some architectures pad
-   before time fields instead, or omit padding despite being 32-bit,
-   or include it despite being 64-bit.  This must match the layout
-   used for struct semid64_ds in <asm/sembuf.h>, as glibc does not do
-   layout conversions for this structure.  */
-
-#define __SEM_PAD_AFTER_TIME (__TIMESIZE == 32)
-#define __SEM_PAD_BEFORE_TIME 0

lib/libc/include/generic-glibc/bits/sem.h

@@ -20,7 +20,8 @@
 #endif
 
 #include <sys/types.h>
-#include <bits/sem-pad.h>
+#include <bits/timesize.h>
+#include <bits/types/struct_semid_ds.h>
 
 /* Flags for `semop'.  */
 #define SEM_UNDO	0x1000		/* undo the operation on exit */
@@ -34,29 +35,6 @@
 #define SETVAL		16		/* set semval */
 #define SETALL		17		/* set all semval's */
 
-
-#if __SEM_PAD_BEFORE_TIME
-# define __SEM_PAD_TIME(NAME, RES)				\
-  __syscall_ulong_t __glibc_reserved ## RES; __time_t NAME
-#elif __SEM_PAD_AFTER_TIME
-# define __SEM_PAD_TIME(NAME, RES)				\
-  __time_t NAME; __syscall_ulong_t __glibc_reserved ## RES
-#else
-# define __SEM_PAD_TIME(NAME, RES)		\
-  __time_t NAME
-#endif
-
-/* Data structure describing a set of semaphores.  */
-struct semid_ds
-{
-  struct ipc_perm sem_perm;		/* operation permission struct */
-  __SEM_PAD_TIME (sem_otime, 1);	/* last semop() time */
-  __SEM_PAD_TIME (sem_ctime, 2);	/* last time changed by semctl() */
-  __syscall_ulong_t sem_nsems;		/* number of semaphores in set */
-  __syscall_ulong_t __glibc_reserved3;
-  __syscall_ulong_t __glibc_reserved4;
-};
-
 /* The user should define a union like the following to use it for arguments
    for `semctl'.
 

lib/libc/include/generic-glibc/bits/semaphore.h

@@ -1,4 +1,5 @@
-/* Copyright (C) 2002-2020 Free Software Foundation, Inc.
+/* Generic POSIX semaphore type layout
+   Copyright (C) 1995-2020 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -12,14 +13,16 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library.  If not, see
+   License along with the GNU C Library; if not, see
    <https://www.gnu.org/licenses/>.  */
 
 #ifndef _SEMAPHORE_H
 # error "Never use <bits/semaphore.h> directly; include <semaphore.h> instead."
 #endif
 
-#if _MIPS_SIM == _ABI64
+#include <bits/wordsize.h>
+
+#if __WORDSIZE == 64
 # define __SIZEOF_SEM_T	32
 #else
 # define __SIZEOF_SEM_T	16

lib/libc/include/generic-glibc/bits/shm-pad.h

@@ -1,37 +0,0 @@
-/* Define where padding goes in struct shmid_ds.  Generic version.
-   Copyright (C) 2018-2020 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library; if not, see
-   <https://www.gnu.org/licenses/>.  */
-
-#ifndef _SYS_SHM_H
-# error "Never use <bits/shm-pad.h> directly; include <sys/shm.h> instead."
-#endif
-
-#include <bits/timesize.h>
-
-/* On most architectures, padding goes after time fields for 32-bit
-   systems and is omitted for 64-bit systems.  Some architectures pad
-   before time fields instead, or omit padding despite being 32-bit,
-   or include it despite being 64-bit.  Furthermore, some
-   architectures place shm_segsz after the time fields rather than
-   before them, with or without padding there.  This must match the
-   layout used for struct shmid64_ds in <asm/shmbuf.h>, as glibc does
-   not do layout conversions for this structure.  */
-
-#define __SHM_PAD_AFTER_TIME (__TIMESIZE == 32)
-#define __SHM_PAD_BEFORE_TIME 0
-#define __SHM_SEGSZ_AFTER_TIME 0
-#define __SHM_PAD_BETWEEN_TIME_AND_SEGSZ 0

lib/libc/include/generic-glibc/bits/shm.h

@@ -22,7 +22,6 @@
 #include <bits/types.h>
 #include <bits/wordsize.h>
 #include <bits/shmlba.h>
-#include <bits/shm-pad.h>
 
 /* Permission flag for shmget.  */
 #define SHM_R		0400		/* or S_IRUGO from <linux/stat.h> */
@@ -43,39 +42,7 @@ __BEGIN_DECLS
 /* Type to count number of attaches.  */
 typedef __syscall_ulong_t shmatt_t;
 
-#if __SHM_PAD_BEFORE_TIME
+#include <bits/types/struct_shmid_ds.h>
-# define __SHM_PAD_TIME(NAME, RES)				\
-  unsigned long int __glibc_reserved ## RES; __time_t NAME
-#elif __SHM_PAD_AFTER_TIME
-# define __SHM_PAD_TIME(NAME, RES)				\
-  __time_t NAME; unsigned long int __glibc_reserved ## RES
-#else
-# define __SHM_PAD_TIME(NAME, RES)		\
-  __time_t NAME
-#endif
-
-/* Data structure describing a shared memory segment.  */
-struct shmid_ds
-  {
-    struct ipc_perm shm_perm;		/* operation permission struct */
-#if !__SHM_SEGSZ_AFTER_TIME
-    size_t shm_segsz;			/* size of segment in bytes */
-#endif
-    __SHM_PAD_TIME (shm_atime, 1);	/* time of last shmat() */
-    __SHM_PAD_TIME (shm_dtime, 2);	/* time of last shmdt() */
-    __SHM_PAD_TIME (shm_ctime, 3);	/* time of last change by shmctl() */
-#if __SHM_PAD_BETWEEN_TIME_AND_SEGSZ
-    unsigned long int __glibc_reserved4;
-#endif
-#if __SHM_SEGSZ_AFTER_TIME
-    size_t shm_segsz;			/* size of segment in bytes */
-#endif
-    __pid_t shm_cpid;			/* pid of creator */
-    __pid_t shm_lpid;			/* pid of last shmop */
-    shmatt_t shm_nattch;		/* number of current attaches */
-    __syscall_ulong_t __glibc_reserved5;
-    __syscall_ulong_t __glibc_reserved6;
-  };
 
 #ifdef __USE_MISC
 

lib/libc/include/generic-glibc/bits/signum-arch.h

@@ -0,0 +1,64 @@
+/* Signal number definitions.  Linux version.
+   Copyright (C) 1995-2020 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <https://www.gnu.org/licenses/>.  */
+
+#ifndef _BITS_SIGNUM_ARCH_H
+#define _BITS_SIGNUM_ARCH_H 1
+
+#ifndef _SIGNAL_H
+#error "Never include <bits/signum-arch.h> directly; use <signal.h> instead."
+#endif
+
+/* Adjustments and additions to the signal number constants for
+   most Linux systems.  */
+
+#define SIGSTKFLT	16	/* Stack fault (obsolete).  */
+#define SIGPWR		30	/* Power failure imminent.  */
+
+/* Historical signals specified by POSIX. */
+#define SIGBUS		 7	/* Bus error.  */
+#define SIGSYS		31	/* Bad system call.  */
+
+/* New(er) POSIX signals (1003.1-2008, 1003.1-2013).  */
+#define SIGURG		23	/* Urgent data is available at a socket.  */
+#define SIGSTOP		19	/* Stop, unblockable.  */
+#define SIGTSTP		20	/* Keyboard stop.  */
+#define SIGCONT		18	/* Continue.  */
+#define SIGCHLD		17	/* Child terminated or stopped.  */
+#define SIGTTIN		21	/* Background read from control terminal.  */
+#define SIGTTOU		22	/* Background write to control terminal.  */
+#define SIGPOLL		29	/* Pollable event occurred (System V).  */
+#define SIGXFSZ		25	/* File size limit exceeded.  */
+#define SIGXCPU		24	/* CPU time limit exceeded.  */
+#define SIGVTALRM	26	/* Virtual timer expired.  */
+#define SIGPROF		27	/* Profiling timer expired.  */
+#define SIGUSR1		10	/* User-defined signal 1.  */
+#define SIGUSR2		12	/* User-defined signal 2.  */
+
+/* Nonstandard signals found in all modern POSIX systems
+   (including both BSD and Linux).  */
+#define SIGWINCH	28	/* Window size change (4.3 BSD, Sun).  */
+
+/* Archaic names for compatibility.  */
+#define SIGIO		SIGPOLL	/* I/O now possible (4.2 BSD).  */
+#define SIGIOT		SIGABRT	/* IOT instruction, abort() on a PDP-11.  */
+#define SIGCLD		SIGCHLD	/* Old System V name */
+
+#define __SIGRTMIN	32
+#define __SIGRTMAX	64
+
+#endif	/* <signal.h> included.  */

lib/libc/include/generic-glibc/bits/signum-generic.h

@@ -57,31 +57,9 @@
 #define	SIGQUIT		3	/* Quit.  */
 #define	SIGTRAP		5	/* Trace/breakpoint trap.  */
 #define	SIGKILL		9	/* Killed.  */
-#define SIGBUS		10	/* Bus error.  */
-#define	SIGSYS		12	/* Bad system call.  */
 #define	SIGPIPE		13	/* Broken pipe.  */
 #define	SIGALRM		14	/* Alarm clock.  */
 
-/* New(er) POSIX signals (1003.1-2008, 1003.1-2013).  */
-#define	SIGURG		16	/* Urgent data is available at a socket.  */
-#define	SIGSTOP		17	/* Stop, unblockable.  */
-#define	SIGTSTP		18	/* Keyboard stop.  */
-#define	SIGCONT		19	/* Continue.  */
-#define	SIGCHLD		20	/* Child terminated or stopped.  */
-#define	SIGTTIN		21	/* Background read from control terminal.  */
-#define	SIGTTOU		22	/* Background write to control terminal.  */
-#define	SIGPOLL		23	/* Pollable event occurred (System V).  */
-#define	SIGXCPU		24	/* CPU time limit exceeded.  */
-#define	SIGXFSZ		25	/* File size limit exceeded.  */
-#define	SIGVTALRM	26	/* Virtual timer expired.  */
-#define	SIGPROF		27	/* Profiling timer expired.  */
-#define	SIGUSR1		30	/* User-defined signal 1.  */
-#define	SIGUSR2		31	/* User-defined signal 2.  */
-
-/* Nonstandard signals found in all modern POSIX systems
-   (including both BSD and Linux).  */
-#define	SIGWINCH	28	/* Window size change (4.3 BSD, Sun).  */
-
 /* Archaic names for compatibility.  */
 #define	SIGIO		SIGPOLL	/* I/O now possible (4.2 BSD).  */
 #define	SIGIOT		SIGABRT	/* IOT instruction, abort() on a PDP-11.  */
@@ -93,8 +71,9 @@
    but some real-time signals may be used internally by glibc.  Do not
    use these constants in application code; use SIGRTMIN and SIGRTMAX
    (defined in signal.h) instead.  */
-#define __SIGRTMIN	32
+
-#define __SIGRTMAX	__SIGRTMIN
+/* Include system specific bits.  */
+#include <bits/signum-arch.h>
 
 /* Biggest signal number + 1 (including real-time signals).  */
 #define _NSIG		(__SIGRTMAX + 1)

lib/libc/include/generic-glibc/bits/signum.h

@@ -1,58 +0,0 @@
-/* Signal number definitions.  Linux version.
-   Copyright (C) 1995-2020 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library; if not, see
-   <https://www.gnu.org/licenses/>.  */
-
-#ifndef _BITS_SIGNUM_H
-#define _BITS_SIGNUM_H 1
-
-#ifndef _SIGNAL_H
-#error "Never include <bits/signum.h> directly; use <signal.h> instead."
-#endif
-
-#include <bits/signum-generic.h>
-
-/* Adjustments and additions to the signal number constants for
-   most Linux systems.  */
-
-#define	SIGSTKFLT	16	/* Stack fault (obsolete).  */
-#define	SIGPWR		30	/* Power failure imminent.  */
-
-#undef	SIGBUS
-#define	SIGBUS		 7
-#undef	SIGUSR1
-#define	SIGUSR1		10
-#undef	SIGUSR2
-#define	SIGUSR2		12
-#undef	SIGCHLD
-#define	SIGCHLD		17
-#undef	SIGCONT
-#define	SIGCONT		18
-#undef	SIGSTOP
-#define	SIGSTOP		19
-#undef	SIGTSTP
-#define	SIGTSTP		20
-#undef	SIGURG
-#define	SIGURG		23
-#undef	SIGPOLL
-#define	SIGPOLL		29
-#undef	SIGSYS
-#define SIGSYS		31
-
-#undef	__SIGRTMAX
-#define __SIGRTMAX	64
-
-#endif	/* <signal.h> included.  */

lib/libc/include/generic-glibc/bits/socket-constants.h

@@ -20,6 +20,8 @@
 # error "Never include <bits/socket-constants.h> directly; use <sys/socket.h> instead."
 #endif
 
+#include <bits/timesize.h>
+
 #define SOL_SOCKET 1
 #define SO_ACCEPTCONN 30
 #define SO_BROADCAST 6
@@ -30,9 +32,19 @@
 #define SO_OOBINLINE 10
 #define SO_RCVBUF 8
 #define SO_RCVLOWAT 18
-#define SO_RCVTIMEO 20
+#if (__TIMESIZE == 64 && __WORDSIZE == 32 \
+     && (!defined __SYSCALL_WORDSIZE || __SYSCALL_WORDSIZE == 32))
+# define SO_RCVTIMEO 66
+#else
+# define SO_RCVTIMEO 20
+#endif
 #define SO_REUSEADDR 2
 #define SO_SNDBUF 7
 #define SO_SNDLOWAT 19
-#define SO_SNDTIMEO 21
+#if (__TIMESIZE == 64 && __WORDSIZE == 32 \
+     && (!defined __SYSCALL_WORDSIZE || __SYSCALL_WORDSIZE == 32))
+# define SO_SNDTIMEO 67
+#else
+# define SO_SNDTIMEO 21
+#endif
 #define SO_TYPE 3

lib/libc/include/generic-glibc/bits/statx-generic.h

@@ -48,6 +48,7 @@
 # define STATX_ATTR_NODUMP 0x0040
 # define STATX_ATTR_ENCRYPTED 0x0800
 # define STATX_ATTR_AUTOMOUNT 0x1000
+# define STATX_ATTR_VERITY 0x100000
 #endif /* !STATX_TYPE */
 
 __BEGIN_DECLS

lib/libc/include/generic-glibc/bits/stdio-ldbl.h

@@ -27,9 +27,17 @@ __LDBL_REDIR_DECL (vfprintf)
 __LDBL_REDIR_DECL (vprintf)
 __LDBL_REDIR_DECL (vsprintf)
 #if !__GLIBC_USE (DEPRECATED_SCANF)
+# if defined __LDBL_COMPAT
 __LDBL_REDIR1_DECL (fscanf, __nldbl___isoc99_fscanf)
 __LDBL_REDIR1_DECL (scanf, __nldbl___isoc99_scanf)
 __LDBL_REDIR1_DECL (sscanf, __nldbl___isoc99_sscanf)
+# elif __LDOUBLE_REDIRECTS_TO_FLOAT128_ABI == 1
+__LDBL_REDIR1_DECL (fscanf, __isoc99_fscanfieee128)
+__LDBL_REDIR1_DECL (scanf, __isoc99_scanfieee128)
+__LDBL_REDIR1_DECL (sscanf, __isoc99_sscanfieee128)
+# else
+#  error bits/stdlib-ldbl.h included when no ldbl redirections are required.
+# endif
 #else
 __LDBL_REDIR_DECL (fscanf)
 __LDBL_REDIR_DECL (scanf)
@@ -43,9 +51,17 @@ __LDBL_REDIR_DECL (vsnprintf)
 
 #ifdef	__USE_ISOC99
 # if !__GLIBC_USE (DEPRECATED_SCANF)
+#  if defined __LDBL_COMPAT
 __LDBL_REDIR1_DECL (vfscanf, __nldbl___isoc99_vfscanf)
 __LDBL_REDIR1_DECL (vscanf, __nldbl___isoc99_vscanf)
 __LDBL_REDIR1_DECL (vsscanf, __nldbl___isoc99_vsscanf)
+#  elif __LDOUBLE_REDIRECTS_TO_FLOAT128_ABI == 1
+__LDBL_REDIR1_DECL (vfscanf, __isoc99_vfscanfieee128)
+__LDBL_REDIR1_DECL (vscanf, __isoc99_vscanfieee128)
+__LDBL_REDIR1_DECL (vsscanf, __isoc99_vsscanfieee128)
+#  else
+#   error bits/stdlib-ldbl.h included when no ldbl redirections are required.
+#  endif
 # else
 __LDBL_REDIR_DECL (vfscanf)
 __LDBL_REDIR_DECL (vsscanf)
@@ -60,33 +76,33 @@ __LDBL_REDIR_DECL (dprintf)
 
 #ifdef __USE_GNU
 __LDBL_REDIR_DECL (vasprintf)
-__LDBL_REDIR_DECL (__asprintf)
+__LDBL_REDIR2_DECL (asprintf)
 __LDBL_REDIR_DECL (asprintf)
 __LDBL_REDIR_DECL (obstack_printf)
 __LDBL_REDIR_DECL (obstack_vprintf)
 #endif
 
 #if __USE_FORTIFY_LEVEL > 0 && defined __fortify_function
-__LDBL_REDIR_DECL (__sprintf_chk)
+__LDBL_REDIR2_DECL (sprintf_chk)
-__LDBL_REDIR_DECL (__vsprintf_chk)
+__LDBL_REDIR2_DECL (vsprintf_chk)
 # if defined __USE_ISOC99 || defined __USE_UNIX98
-__LDBL_REDIR_DECL (__snprintf_chk)
+__LDBL_REDIR2_DECL (snprintf_chk)
-__LDBL_REDIR_DECL (__vsnprintf_chk)
+__LDBL_REDIR2_DECL (vsnprintf_chk)
 # endif
 # if __USE_FORTIFY_LEVEL > 1
-__LDBL_REDIR_DECL (__fprintf_chk)
+__LDBL_REDIR2_DECL (fprintf_chk)
-__LDBL_REDIR_DECL (__printf_chk)
+__LDBL_REDIR2_DECL (printf_chk)
-__LDBL_REDIR_DECL (__vfprintf_chk)
+__LDBL_REDIR2_DECL (vfprintf_chk)
-__LDBL_REDIR_DECL (__vprintf_chk)
+__LDBL_REDIR2_DECL (vprintf_chk)
 #  ifdef __USE_XOPEN2K8
-__LDBL_REDIR_DECL (__dprintf_chk)
+__LDBL_REDIR2_DECL (dprintf_chk)
-__LDBL_REDIR_DECL (__vdprintf_chk)
+__LDBL_REDIR2_DECL (vdprintf_chk)
 #  endif
 #  ifdef __USE_GNU
-__LDBL_REDIR_DECL (__asprintf_chk)
+__LDBL_REDIR2_DECL (asprintf_chk)
-__LDBL_REDIR_DECL (__vasprintf_chk)
+__LDBL_REDIR2_DECL (vasprintf_chk)
-__LDBL_REDIR_DECL (__obstack_printf_chk)
+__LDBL_REDIR2_DECL (obstack_printf_chk)
-__LDBL_REDIR_DECL (__obstack_vprintf_chk)
+__LDBL_REDIR2_DECL (obstack_vprintf_chk)
 #  endif
 # endif
 #endif

lib/libc/include/generic-glibc/bits/stdio2.h

@@ -24,10 +24,12 @@
 #endif
 
 extern int __sprintf_chk (char *__restrict __s, int __flag, size_t __slen,
-			  const char *__restrict __format, ...) __THROW;
+			  const char *__restrict __format, ...) __THROW
+    __attr_access ((__write_only__, 1, 3));
 extern int __vsprintf_chk (char *__restrict __s, int __flag, size_t __slen,
 			   const char *__restrict __format,
-			   __gnuc_va_list __ap) __THROW;
+			   __gnuc_va_list __ap) __THROW
+    __attr_access ((__write_only__, 1, 3));
 
 #ifdef __va_arg_pack
 __fortify_function int
@@ -54,7 +56,8 @@ __NTH (vsprintf (char *__restrict __s, const char *__restrict __fmt,
 
 extern int __snprintf_chk (char *__restrict __s, size_t __n, int __flag,
 			   size_t __slen, const char *__restrict __format,
-			   ...) __THROW;
+			   ...) __THROW
+    __attr_access ((__write_only__, 1, 2));
 extern int __vsnprintf_chk (char *__restrict __s, size_t __n, int __flag,
 			    size_t __slen, const char *__restrict __format,
 			    __gnuc_va_list __ap) __THROW;
@@ -241,17 +244,19 @@ gets (char *__str)
 #endif
 
 extern char *__fgets_chk (char *__restrict __s, size_t __size, int __n,
-			  FILE *__restrict __stream) __wur;
+			  FILE *__restrict __stream)
+    __wur __attr_access ((__write_only__, 1, 3));
 extern char *__REDIRECT (__fgets_alias,
 			 (char *__restrict __s, int __n,
-			  FILE *__restrict __stream), fgets) __wur;
+			  FILE *__restrict __stream), fgets)
+    __wur __attr_access ((__write_only__, 1, 2));
 extern char *__REDIRECT (__fgets_chk_warn,
 			 (char *__restrict __s, size_t __size, int __n,
 			  FILE *__restrict __stream), __fgets_chk)
      __wur __warnattr ("fgets called with bigger size than length "
 		       "of destination buffer");
 
-__fortify_function __wur char *
+__fortify_function __wur __attr_access ((__write_only__, 1, 2)) char *
 fgets (char *__restrict __s, int __n, FILE *__restrict __stream)
 {
   if (__bos (__s) != (size_t) -1)
@@ -299,17 +304,19 @@ fread (void *__restrict __ptr, size_t __size, size_t __n,
 
 #ifdef __USE_GNU
 extern char *__fgets_unlocked_chk (char *__restrict __s, size_t __size,
-				   int __n, FILE *__restrict __stream) __wur;
+				   int __n, FILE *__restrict __stream)
+    __wur __attr_access ((__write_only__, 1, 3));
 extern char *__REDIRECT (__fgets_unlocked_alias,
 			 (char *__restrict __s, int __n,
-			  FILE *__restrict __stream), fgets_unlocked) __wur;
+			  FILE *__restrict __stream), fgets_unlocked)
+    __wur __attr_access ((__write_only__, 1, 2));
 extern char *__REDIRECT (__fgets_unlocked_chk_warn,
 			 (char *__restrict __s, size_t __size, int __n,
 			  FILE *__restrict __stream), __fgets_unlocked_chk)
      __wur __warnattr ("fgets_unlocked called with bigger size than length "
 		       "of destination buffer");
 
-__fortify_function __wur char *
+__fortify_function __wur __attr_access ((__write_only__, 1, 2)) char *
 fgets_unlocked (char *__restrict __s, int __n, FILE *__restrict __stream)
 {
   if (__bos (__s) != (size_t) -1)

lib/libc/include/generic-glibc/bits/stdlib-ldbl.h

@@ -21,21 +21,43 @@
 #endif
 
 #ifdef	__USE_ISOC99
+# ifdef __LDBL_COMPAT
 __LDBL_REDIR1_DECL (strtold, strtod)
+# else
+__LDBL_REDIR1_DECL (strtold, __strtoieee128)
+# endif
 #endif
 
 #ifdef __USE_GNU
+# ifdef __LDBL_COMPAT
 __LDBL_REDIR1_DECL (strtold_l, strtod_l)
+# else
+__LDBL_REDIR1_DECL (strtold_l, __strtoieee128_l)
+# endif
 #endif
 
 #if __GLIBC_USE (IEC_60559_BFP_EXT_C2X)
+# ifdef __LDBL_COMPAT
 __LDBL_REDIR1_DECL (strfroml, strfromd)
+# else
+__LDBL_REDIR1_DECL (strfroml, __strfromieee128)
+# endif
 #endif
 
 #ifdef __USE_MISC
+# if defined __LDBL_COMPAT
 __LDBL_REDIR1_DECL (qecvt, ecvt)
 __LDBL_REDIR1_DECL (qfcvt, fcvt)
 __LDBL_REDIR1_DECL (qgcvt, gcvt)
 __LDBL_REDIR1_DECL (qecvt_r, ecvt_r)
 __LDBL_REDIR1_DECL (qfcvt_r, fcvt_r)
+# elif __LDOUBLE_REDIRECTS_TO_FLOAT128_ABI == 1
+__LDBL_REDIR1_DECL (qecvt, __qecvtieee128)
+__LDBL_REDIR1_DECL (qfcvt, __qfcvtieee128)
+__LDBL_REDIR1_DECL (qgcvt, __qgcvtieee128)
+__LDBL_REDIR1_DECL (qecvt_r, __qecvtieee128_r)
+__LDBL_REDIR1_DECL (qfcvt_r, __qfcvtieee128_r)
+# else
+#  error bits/stdlib-ldbl.h included when no ldbl redirections are required.
+# endif
 #endif

lib/libc/include/generic-glibc/bits/stdlib.h

@@ -50,10 +50,11 @@ __NTH (realpath (const char *__restrict __name, char *__restrict __resolved))
 
 
 extern int __ptsname_r_chk (int __fd, char *__buf, size_t __buflen,
-			    size_t __nreal) __THROW __nonnull ((2));
+			    size_t __nreal) __THROW __nonnull ((2))
+    __attr_access ((__write_only__, 2, 3));
 extern int __REDIRECT_NTH (__ptsname_r_alias, (int __fd, char *__buf,
 					       size_t __buflen), ptsname_r)
-     __nonnull ((2));
+     __nonnull ((2)) __attr_access ((__write_only__, 2, 3));
 extern int __REDIRECT_NTH (__ptsname_r_chk_warn,
 			   (int __fd, char *__buf, size_t __buflen,
 			    size_t __nreal), __ptsname_r_chk)
@@ -97,11 +98,13 @@ __NTH (wctomb (char *__s, wchar_t __wchar))
 
 extern size_t __mbstowcs_chk (wchar_t *__restrict __dst,
 			      const char *__restrict __src,
-			      size_t __len, size_t __dstlen) __THROW;
+			      size_t __len, size_t __dstlen) __THROW
+    __attr_access ((__write_only__, 1, 3)) __attr_access ((__read_only__, 2));
 extern size_t __REDIRECT_NTH (__mbstowcs_alias,
 			      (wchar_t *__restrict __dst,
 			       const char *__restrict __src,
-			       size_t __len), mbstowcs);
+			       size_t __len), mbstowcs)
+    __attr_access ((__write_only__, 1, 3)) __attr_access ((__read_only__, 2));
 extern size_t __REDIRECT_NTH (__mbstowcs_chk_warn,
 			      (wchar_t *__restrict __dst,
 			       const char *__restrict __src,
@@ -129,11 +132,13 @@ __NTH (mbstowcs (wchar_t *__restrict __dst, const char *__restrict __src,
 
 extern size_t __wcstombs_chk (char *__restrict __dst,
 			      const wchar_t *__restrict __src,
-			      size_t __len, size_t __dstlen) __THROW;
+			      size_t __len, size_t __dstlen) __THROW
+  __attr_access ((__write_only__, 1, 3)) __attr_access ((__read_only__, 2));
 extern size_t __REDIRECT_NTH (__wcstombs_alias,
 			      (char *__restrict __dst,
 			       const wchar_t *__restrict __src,
-			       size_t __len), wcstombs);
+			       size_t __len), wcstombs)
+  __attr_access ((__write_only__, 1, 3)) __attr_access ((__read_only__, 2));
 extern size_t __REDIRECT_NTH (__wcstombs_chk_warn,
 			      (char *__restrict __dst,
 			       const wchar_t *__restrict __src,

lib/libc/include/generic-glibc/bits/string_fortified.h

@@ -75,7 +75,7 @@ __NTH (memset (void *__dest, int __ch, size_t __len))
 # include <bits/strings_fortified.h>
 
 void __explicit_bzero_chk (void *__dest, size_t __len, size_t __destlen)
-  __THROW __nonnull ((1));
+  __THROW __nonnull ((1)) __attr_access ((__write_only__, 1, 2));
 
 __fortify_function void
 __NTH (explicit_bzero (void *__dest, size_t __len))
@@ -108,7 +108,8 @@ __NTH (strncpy (char *__restrict __dest, const char *__restrict __src,
 
 /* XXX We have no corresponding builtin yet.  */
 extern char *__stpncpy_chk (char *__dest, const char *__src, size_t __n,
-			    size_t __destlen) __THROW;
+			    size_t __destlen) __THROW
+  __attr_access ((__write_only__, 1, 3)) __attr_access ((__read_only__, 2));
 extern char *__REDIRECT_NTH (__stpncpy_alias, (char *__dest, const char *__src,
 					       size_t __n), stpncpy);
 

lib/libc/include/generic-glibc/bits/sys_errlist.h

@@ -1,32 +0,0 @@
-/* Declare sys_errlist and sys_nerr, or don't.  Compatibility (do) version.
-   Copyright (C) 2002-2020 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library; if not, see
-   <https://www.gnu.org/licenses/>.  */
-
-#ifndef _STDIO_H
-# error "Never include <bits/sys_errlist.h> directly; use <stdio.h> instead."
-#endif
-
-/* sys_errlist and sys_nerr are deprecated.  Use strerror instead.  */
-
-#ifdef  __USE_MISC
-extern int sys_nerr;
-extern const char *const sys_errlist[];
-#endif
-#ifdef  __USE_GNU
-extern int _sys_nerr;
-extern const char *const _sys_errlist[];
-#endif

lib/libc/include/generic-glibc/bits/syscall.h

@@ -1,11 +1,11 @@
 /* Generated at libc build time from syscall list.  */
-/* The system call list corresponds to kernel 5.4.  */
+/* The system call list corresponds to kernel 5.7.  */
 
 #ifndef _SYSCALL_H
 # error "Never use <bits/syscall.h> directly; include <sys/syscall.h> instead."
 #endif
 
-#define __GLIBC_LINUX_VERSION_CODE 328704
+#define __GLIBC_LINUX_VERSION_CODE 329472
 
 #ifdef __NR_FAST_atomic_update
 # define SYS_FAST_atomic_update __NR_FAST_atomic_update
@@ -75,6 +75,18 @@
 # define SYS_alloc_hugepages __NR_alloc_hugepages
 #endif
 
+#ifdef __NR_arc_gettls
+# define SYS_arc_gettls __NR_arc_gettls
+#endif
+
+#ifdef __NR_arc_settls
+# define SYS_arc_settls __NR_arc_settls
+#endif
+
+#ifdef __NR_arc_usr_cmpxchg
+# define SYS_arc_usr_cmpxchg __NR_arc_usr_cmpxchg
+#endif
+
 #ifdef __NR_arch_prctl
 # define SYS_arch_prctl __NR_arch_prctl
 #endif
@@ -1079,6 +1091,10 @@
 # define SYS_openat __NR_openat
 #endif
 
+#ifdef __NR_openat2
+# define SYS_openat2 __NR_openat2
+#endif
+
 #ifdef __NR_osf_adjtime
 # define SYS_osf_adjtime __NR_osf_adjtime
 #endif
@@ -1551,6 +1567,10 @@
 # define SYS_personality __NR_personality
 #endif
 
+#ifdef __NR_pidfd_getfd
+# define SYS_pidfd_getfd __NR_pidfd_getfd
+#endif
+
 #ifdef __NR_pidfd_open
 # define SYS_pidfd_open __NR_pidfd_open
 #endif

lib/libc/include/generic-glibc/bits/sysctl.h

@@ -1 +0,0 @@
-/* Empty file.  */

lib/libc/include/generic-glibc/bits/syslog-ldbl.h

@@ -27,9 +27,9 @@ __LDBL_REDIR_DECL (vsyslog)
 #endif
 
 #if __USE_FORTIFY_LEVEL > 0 && defined __fortify_function
-__LDBL_REDIR_DECL (__syslog_chk)
+__LDBL_REDIR2_DECL (syslog_chk)
 
 # ifdef __USE_MISC
-__LDBL_REDIR_DECL (__vsyslog_chk)
+__LDBL_REDIR2_DECL (vsyslog_chk)
 # endif
 #endif

lib/libc/include/generic-glibc/bits/thread-shared-types.h

@@ -116,4 +116,14 @@ struct __pthread_cond_s
   unsigned int __g_signals[2];
 };
 
+typedef unsigned int __tss_t;
+typedef unsigned long int __thrd_t;
+
+typedef struct
+{
+  int __data __ONCE_ALIGNMENT;
+} __once_flag;
+
+#define __ONCE_FLAG_INIT { 0 }
+
 #endif /* _THREAD_SHARED_TYPES_H  */

lib/libc/include/generic-glibc/bits/types.h

@@ -160,6 +160,7 @@ __STD_TYPE __ID_T_TYPE __id_t;		/* General type for IDs.  */
 __STD_TYPE __TIME_T_TYPE __time_t;	/* Seconds since the Epoch.  */
 __STD_TYPE __USECONDS_T_TYPE __useconds_t; /* Count of microseconds.  */
 __STD_TYPE __SUSECONDS_T_TYPE __suseconds_t; /* Signed count of microseconds.  */
+__STD_TYPE __SUSECONDS64_T_TYPE __suseconds64_t;
 
 __STD_TYPE __DADDR_T_TYPE __daddr_t;	/* The type of a disk address.  */
 __STD_TYPE __KEY_T_TYPE __key_t;	/* Type of an IPC key.  */

lib/libc/include/generic-glibc/bits/types/struct_msqid_ds.h

@@ -0,0 +1,47 @@
+/* Generic implementation of the SysV message struct msqid_ds.
+   Copyright (C) 2020 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <https://www.gnu.org/licenses/>.  */
+
+#ifndef _SYS_MSG_H
+# error "Never use <bits/msq.h> directly; include <sys/msg.h> instead."
+#endif
+
+/* Structure of record for one message inside the kernel.
+   The type `struct msg' is opaque.  */
+struct msqid_ds
+{
+  struct ipc_perm msg_perm;	/* structure describing operation permission */
+#if __TIMESIZE == 32
+  __time_t msg_stime;		/* time of last msgsnd command */
+  unsigned long int __msg_stime_high;
+  __time_t msg_rtime;		/* time of last msgsnd command */
+  unsigned long int __msg_rtime_high;
+  __time_t msg_ctime;		/* time of last change */
+  unsigned long int __msg_ctime_high;
+#else
+  __time_t msg_stime;		/* time of last msgsnd command */
+  __time_t msg_rtime;		/* time of last msgsnd command */
+  __time_t msg_ctime;		/* time of last change */
+#endif
+  __syscall_ulong_t __msg_cbytes; /* current number of bytes on queue */
+  msgqnum_t msg_qnum;		/* number of messages currently on queue */
+  msglen_t msg_qbytes;		/* max number of bytes allowed on queue */
+  __pid_t msg_lspid;		/* pid of last msgsnd() */
+  __pid_t msg_lrpid;		/* pid of last msgrcv() */
+  __syscall_ulong_t __glibc_reserved4;
+  __syscall_ulong_t __glibc_reserved5;
+};

lib/libc/include/generic-glibc/bits/types/struct_semid_ds.h

@@ -0,0 +1,39 @@
+/* Generic implementation of the semaphore struct semid_ds.
+   Copyright (C) 1995-2020 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <https://www.gnu.org/licenses/>.  */
+
+#ifndef _SYS_SEM_H
+# error "Never include <bits/types/struct_semid_ds.h> directly; use <sys/sem.h> instead."
+#endif
+
+/* Data structure describing a set of semaphores.  */
+struct semid_ds
+{
+  struct ipc_perm sem_perm;        /* operation permission struct */
+#if __TIMESIZE == 32
+  __time_t sem_otime;              /* last semop() time */
+  __syscall_ulong_t __sem_otime_high;
+  __time_t sem_ctime;             /* last time changed by semctl() */
+  __syscall_ulong_t __sem_ctime_high;
+#else
+  __time_t sem_otime;
+  __time_t sem_ctime;
+#endif
+  __syscall_ulong_t sem_nsems;    /* number of semaphores in set */
+  __syscall_ulong_t __glibc_reserved3;
+  __syscall_ulong_t __glibc_reserved4;
+};

lib/libc/include/generic-glibc/bits/types/struct_shmid_ds.h

@@ -0,0 +1,45 @@
+/* Generic implementation of the shared memory struct shmid_ds.
+   Copyright (C) 2020 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <https://www.gnu.org/licenses/>.  */
+
+#ifndef _SYS_SHM_H
+# error "Never include <bits/types/struct_shmid_ds.h> directly; use <sys/shm.h> instead."
+#endif
+
+/* Data structure describing a shared memory segment.  */
+struct shmid_ds
+  {
+    struct ipc_perm shm_perm;		/* operation permission struct */
+    size_t shm_segsz;			/* size of segment in bytes */
+#if __TIMESIZE == 32
+    __time_t shm_atime;			/* time of last shmat() */
+    unsigned long int __shm_atime_high;
+    __time_t shm_dtime;			/* time of last shmdt() */
+    unsigned long int __shm_dtime_high;
+    __time_t shm_ctime;			/* time of last change by shmctl() */
+    unsigned long int __shm_ctime_high;
+#else
+    __time_t shm_atime;			/* time of last shmat() */
+    __time_t shm_dtime;			/* time of last shmdt() */
+    __time_t shm_ctime;			/* time of last change by shmctl() */
+#endif
+    __pid_t shm_cpid;			/* pid of creator */
+    __pid_t shm_lpid;			/* pid of last shmop */
+    shmatt_t shm_nattch;		/* number of current attaches */
+    __syscall_ulong_t __glibc_reserved5;
+    __syscall_ulong_t __glibc_reserved6;
+  };

lib/libc/include/generic-glibc/bits/typesizes.h

@@ -50,6 +50,7 @@
 #define __TIME_T_TYPE		__SLONGWORD_TYPE
 #define __USECONDS_T_TYPE	__U32_TYPE
 #define __SUSECONDS_T_TYPE	__SLONGWORD_TYPE
+#define __SUSECONDS64_T_TYPE	__SQUAD_TYPE
 #define __DADDR_T_TYPE		__S32_TYPE
 #define __KEY_T_TYPE		__S32_TYPE
 #define __CLOCKID_T_TYPE	__S32_TYPE
@@ -75,10 +76,16 @@
 
 /* And for fsblkcnt_t, fsblkcnt64_t, fsfilcnt_t and fsfilcnt64_t.  */
 # define __STATFS_MATCHES_STATFS64  1
+
+/* And for getitimer, setitimer and rusage  */
+# define __KERNEL_OLD_TIMEVAL_MATCHES_TIMEVAL64 1
 #else
 # define __RLIM_T_MATCHES_RLIM64_T	0
 
 # define __STATFS_MATCHES_STATFS64  0
+
+/* And for getitimer, setitimer and rusage  */
+# define __KERNEL_OLD_TIMEVAL_MATCHES_TIMEVAL64 0
 #endif
 
 /* Number of descriptors that can fit in an `fd_set'.  */

lib/libc/include/generic-glibc/bits/unistd.h

@@ -21,9 +21,11 @@
 #endif
 
 extern ssize_t __read_chk (int __fd, void *__buf, size_t __nbytes,
-			   size_t __buflen) __wur;
+			   size_t __buflen)
+  __wur __attr_access ((__write_only__, 2, 3));
 extern ssize_t __REDIRECT (__read_alias, (int __fd, void *__buf,
-					  size_t __nbytes), read) __wur;
+					  size_t __nbytes), read)
+  __wur __attr_access ((__write_only__, 2, 3));
 extern ssize_t __REDIRECT (__read_chk_warn,
 			   (int __fd, void *__buf, size_t __nbytes,
 			    size_t __buflen), __read_chk)
@@ -46,15 +48,19 @@ read (int __fd, void *__buf, size_t __nbytes)
 
 #ifdef __USE_UNIX98
 extern ssize_t __pread_chk (int __fd, void *__buf, size_t __nbytes,
-			    __off_t __offset, size_t __bufsize) __wur;
+			    __off_t __offset, size_t __bufsize)
+  __wur __attr_access ((__write_only__, 2, 3));
 extern ssize_t __pread64_chk (int __fd, void *__buf, size_t __nbytes,
-			      __off64_t __offset, size_t __bufsize) __wur;
+			      __off64_t __offset, size_t __bufsize)
+  __wur __attr_access ((__write_only__, 2, 3));
 extern ssize_t __REDIRECT (__pread_alias,
 			   (int __fd, void *__buf, size_t __nbytes,
-			    __off_t __offset), pread) __wur;
+			    __off_t __offset), pread)
+  __wur __attr_access ((__write_only__, 2, 3));
 extern ssize_t __REDIRECT (__pread64_alias,
 			   (int __fd, void *__buf, size_t __nbytes,
-			    __off64_t __offset), pread64) __wur;
+			    __off64_t __offset), pread64)
+  __wur __attr_access ((__write_only__, 2, 3));
 extern ssize_t __REDIRECT (__pread_chk_warn,
 			   (int __fd, void *__buf, size_t __nbytes,
 			    __off_t __offset, size_t __bufsize), __pread_chk)
@@ -123,11 +129,11 @@ pread64 (int __fd, void *__buf, size_t __nbytes, __off64_t __offset)
 extern ssize_t __readlink_chk (const char *__restrict __path,
 			       char *__restrict __buf, size_t __len,
 			       size_t __buflen)
-     __THROW __nonnull ((1, 2)) __wur;
+     __THROW __nonnull ((1, 2)) __wur __attr_access ((__write_only__, 2, 3));
 extern ssize_t __REDIRECT_NTH (__readlink_alias,
 			       (const char *__restrict __path,
 				char *__restrict __buf, size_t __len), readlink)
-     __nonnull ((1, 2)) __wur;
+     __nonnull ((1, 2)) __wur __attr_access ((__write_only__, 2, 3));
 extern ssize_t __REDIRECT_NTH (__readlink_chk_warn,
 			       (const char *__restrict __path,
 				char *__restrict __buf, size_t __len,
@@ -155,12 +161,12 @@ __NTH (readlink (const char *__restrict __path, char *__restrict __buf,
 extern ssize_t __readlinkat_chk (int __fd, const char *__restrict __path,
 				 char *__restrict __buf, size_t __len,
 				 size_t __buflen)
-     __THROW __nonnull ((2, 3)) __wur;
+     __THROW __nonnull ((2, 3)) __wur __attr_access ((__write_only__, 3, 4));
 extern ssize_t __REDIRECT_NTH (__readlinkat_alias,
 			       (int __fd, const char *__restrict __path,
 				char *__restrict __buf, size_t __len),
 			       readlinkat)
-     __nonnull ((2, 3)) __wur;
+     __nonnull ((2, 3)) __wur __attr_access ((__write_only__, 3, 4));
 extern ssize_t __REDIRECT_NTH (__readlinkat_chk_warn,
 			       (int __fd, const char *__restrict __path,
 				char *__restrict __buf, size_t __len,
@@ -187,9 +193,10 @@ __NTH (readlinkat (int __fd, const char *__restrict __path,
 #endif
 
 extern char *__getcwd_chk (char *__buf, size_t __size, size_t __buflen)
-     __THROW __wur;
+     __THROW __wur __attr_access ((__write_only__, 1, 2));
 extern char *__REDIRECT_NTH (__getcwd_alias,
-			     (char *__buf, size_t __size), getcwd) __wur;
+			     (char *__buf, size_t __size), getcwd)
+  __wur __attr_access ((__write_only__, 1, 2));
 extern char *__REDIRECT_NTH (__getcwd_chk_warn,
 			     (char *__buf, size_t __size, size_t __buflen),
 			     __getcwd_chk)
@@ -212,7 +219,7 @@ __NTH (getcwd (char *__buf, size_t __size))
 
 #if defined __USE_MISC || defined __USE_XOPEN_EXTENDED
 extern char *__getwd_chk (char *__buf, size_t buflen)
-     __THROW __nonnull ((1)) __wur;
+     __THROW __nonnull ((1)) __wur __attr_access ((__write_only__, 1, 2));
 extern char *__REDIRECT_NTH (__getwd_warn, (char *__buf), getwd)
      __nonnull ((1)) __wur __warnattr ("please use getcwd instead, as getwd "
 				       "doesn't specify buffer size");
@@ -227,9 +234,11 @@ __NTH (getwd (char *__buf))
 #endif
 
 extern size_t __confstr_chk (int __name, char *__buf, size_t __len,
-			     size_t __buflen) __THROW;
+			     size_t __buflen) __THROW
+  __attr_access ((__write_only__, 2, 3));
 extern size_t __REDIRECT_NTH (__confstr_alias, (int __name, char *__buf,
-						size_t __len), confstr);
+						size_t __len), confstr)
+   __attr_access ((__write_only__, 2, 3));
 extern size_t __REDIRECT_NTH (__confstr_chk_warn,
 			      (int __name, char *__buf, size_t __len,
 			       size_t __buflen), __confstr_chk)
@@ -252,9 +261,9 @@ __NTH (confstr (int __name, char *__buf, size_t __len))
 
 
 extern int __getgroups_chk (int __size, __gid_t __list[], size_t __listlen)
-     __THROW __wur;
+  __THROW __wur __attr_access ((__write_only__, 2, 1));
 extern int __REDIRECT_NTH (__getgroups_alias, (int __size, __gid_t __list[]),
-			   getgroups) __wur;
+			   getgroups) __wur __attr_access ((__write_only__, 2, 1));
 extern int __REDIRECT_NTH (__getgroups_chk_warn,
 			   (int __size, __gid_t __list[], size_t __listlen),
 			   __getgroups_chk)
@@ -277,7 +286,8 @@ __NTH (getgroups (int __size, __gid_t __list[]))
 
 
 extern int __ttyname_r_chk (int __fd, char *__buf, size_t __buflen,
-			    size_t __nreal) __THROW __nonnull ((2));
+			    size_t __nreal) __THROW __nonnull ((2))
+   __attr_access ((__write_only__, 2, 3));
 extern int __REDIRECT_NTH (__ttyname_r_alias, (int __fd, char *__buf,
 					       size_t __buflen), ttyname_r)
      __nonnull ((2));
@@ -304,7 +314,7 @@ __NTH (ttyname_r (int __fd, char *__buf, size_t __buflen))
 
 #ifdef __USE_POSIX199506
 extern int __getlogin_r_chk (char *__buf, size_t __buflen, size_t __nreal)
-     __nonnull ((1));
+     __nonnull ((1)) __attr_access ((__write_only__, 1, 2));
 extern int __REDIRECT (__getlogin_r_alias, (char *__buf, size_t __buflen),
 		       getlogin_r) __nonnull ((1));
 extern int __REDIRECT (__getlogin_r_chk_warn,
@@ -331,9 +341,10 @@ getlogin_r (char *__buf, size_t __buflen)
 
 #if defined __USE_MISC || defined __USE_UNIX98
 extern int __gethostname_chk (char *__buf, size_t __buflen, size_t __nreal)
-     __THROW __nonnull ((1));
+     __THROW __nonnull ((1)) __attr_access ((__write_only__, 1, 2));
 extern int __REDIRECT_NTH (__gethostname_alias, (char *__buf, size_t __buflen),
-			   gethostname) __nonnull ((1));
+			   gethostname)
+  __nonnull ((1)) __attr_access ((__write_only__, 1, 2));
 extern int __REDIRECT_NTH (__gethostname_chk_warn,
 			   (char *__buf, size_t __buflen, size_t __nreal),
 			   __gethostname_chk)
@@ -358,10 +369,11 @@ __NTH (gethostname (char *__buf, size_t __buflen))
 
 #if defined __USE_MISC || (defined __USE_XOPEN && !defined __USE_UNIX98)
 extern int __getdomainname_chk (char *__buf, size_t __buflen, size_t __nreal)
-     __THROW __nonnull ((1)) __wur;
+     __THROW __nonnull ((1)) __wur __attr_access ((__write_only__, 1, 2));
 extern int __REDIRECT_NTH (__getdomainname_alias, (char *__buf,
 						   size_t __buflen),
-			   getdomainname) __nonnull ((1)) __wur;
+			   getdomainname) __nonnull ((1))
+  __wur __attr_access ((__write_only__, 1, 2));
 extern int __REDIRECT_NTH (__getdomainname_chk_warn,
 			   (char *__buf, size_t __buflen, size_t __nreal),
 			   __getdomainname_chk)

lib/libc/include/generic-glibc/bits/wchar-ldbl.h

@@ -28,9 +28,17 @@ __LDBL_REDIR_DECL (vfwprintf);
 __LDBL_REDIR_DECL (vwprintf);
 __LDBL_REDIR_DECL (vswprintf);
 # if !__GLIBC_USE (DEPRECATED_SCANF)
+#  if defined __LDBL_COMPAT
 __LDBL_REDIR1_DECL (fwscanf, __nldbl___isoc99_fwscanf)
 __LDBL_REDIR1_DECL (wscanf, __nldbl___isoc99_wscanf)
 __LDBL_REDIR1_DECL (swscanf, __nldbl___isoc99_swscanf)
+#  elif __LDOUBLE_REDIRECTS_TO_FLOAT128_ABI == 1
+__LDBL_REDIR1_DECL (fwscanf, __isoc99_fwscanfieee128)
+__LDBL_REDIR1_DECL (wscanf, __isoc99_wscanfieee128)
+__LDBL_REDIR1_DECL (swscanf, __isoc99_swscanfieee128)
+#  else
+#   error bits/stdlib-ldbl.h included when no ldbl redirections are required.
+#  endif
 # else
 __LDBL_REDIR_DECL (fwscanf);
 __LDBL_REDIR_DECL (wscanf);
@@ -39,11 +47,23 @@ __LDBL_REDIR_DECL (swscanf);
 #endif
 
 #ifdef __USE_ISOC99
+# ifdef __LDBL_COMPAT
 __LDBL_REDIR1_DECL (wcstold, wcstod);
+# else
+__LDBL_REDIR1_DECL (wcstold, __wcstoieee128)
+# endif
 # if !__GLIBC_USE (DEPRECATED_SCANF)
+#  if defined __LDBL_COMPAT
 __LDBL_REDIR1_DECL (vfwscanf, __nldbl___isoc99_vfwscanf)
 __LDBL_REDIR1_DECL (vwscanf, __nldbl___isoc99_vwscanf)
 __LDBL_REDIR1_DECL (vswscanf, __nldbl___isoc99_vswscanf)
+#  elif __LDOUBLE_REDIRECTS_TO_FLOAT128_ABI == 1
+__LDBL_REDIR1_DECL (vfwscanf, __isoc99_vfwscanfieee128)
+__LDBL_REDIR1_DECL (vwscanf, __isoc99_vwscanfieee128)
+__LDBL_REDIR1_DECL (vswscanf, __isoc99_vswscanfieee128)
+#  else
+#   error bits/stdlib-ldbl.h included when no ldbl redirections are required.
+#  endif
 # else
 __LDBL_REDIR_DECL (vfwscanf);
 __LDBL_REDIR_DECL (vwscanf);
@@ -52,16 +72,20 @@ __LDBL_REDIR_DECL (vswscanf);
 #endif
 
 #ifdef __USE_GNU
+# ifdef __LDBL_COMPAT
 __LDBL_REDIR1_DECL (wcstold_l, wcstod_l);
+# else
+__LDBL_REDIR1_DECL (wcstold_l, __wcstoieee128_l)
+# endif
 #endif
 
 #if __USE_FORTIFY_LEVEL > 0 && defined __fortify_function
-__LDBL_REDIR_DECL (__swprintf_chk)
+__LDBL_REDIR2_DECL (swprintf_chk)
-__LDBL_REDIR_DECL (__vswprintf_chk)
+__LDBL_REDIR2_DECL (vswprintf_chk)
 # if __USE_FORTIFY_LEVEL > 1
-__LDBL_REDIR_DECL (__fwprintf_chk)
+__LDBL_REDIR2_DECL (fwprintf_chk)
-__LDBL_REDIR_DECL (__wprintf_chk)
+__LDBL_REDIR2_DECL (wprintf_chk)
-__LDBL_REDIR_DECL (__vfwprintf_chk)
+__LDBL_REDIR2_DECL (vfwprintf_chk)
-__LDBL_REDIR_DECL (__vwprintf_chk)
+__LDBL_REDIR2_DECL (vwprintf_chk)
 # endif
 #endif

lib/libc/include/generic-glibc/complex.h

@@ -95,11 +95,15 @@ __BEGIN_DECLS
 
 #define __MATHCALL(function, args)	\
   __MATHDECL (_Mdouble_complex_,function, args)
-#define __MATHDECL(type, function, args) \
+#define __MATHDECL_IMPL(type, function, args) \
   __MATHDECL_1(type, function, args); \
   __MATHDECL_1(type, __CONCAT(__,function), args)
-#define __MATHDECL_1(type, function, args) \
+#define __MATHDECL(type, function, args) \
+  __MATHDECL_IMPL(type, function, args)
+#define __MATHDECL_1_IMPL(type, function, args) \
   extern type __MATH_PRECNAME(function) args __THROW
+#define __MATHDECL_1(type, function, args) \
+  __MATHDECL_1_IMPL(type, function, args)
 
 #define _Mdouble_ 		double
 #define __MATH_PRECNAME(name)	name
@@ -122,11 +126,31 @@ __BEGIN_DECLS
 #  undef __MATHDECL_1
 #  define __MATHDECL_1(type, function, args) \
   extern type __REDIRECT_NTH(__MATH_PRECNAME(function), args, function)
+# elif __LDOUBLE_REDIRECTS_TO_FLOAT128_ABI == 1
+#  undef __MATHDECL_1
+#  undef __MATHDECL
+#  define __REDIR_TO(function) \
+  __ ## function ## ieee128
+#  define __MATHDECL_1(type, function, alias, args) \
+  extern type __REDIRECT_NTH(__MATH_PRECNAME(function), args, alias)
+#define __MATHDECL(type, function, args) \
+  __MATHDECL_1(type, function, __REDIR_TO(function), args); \
+  __MATHDECL_1(type, __CONCAT(__,function), __REDIR_TO(function), args)
 # endif
 
 # define _Mdouble_ 		long double
 # define __MATH_PRECNAME(name)	name##l
 # include <bits/cmathcalls.h>
+# if defined __LDBL_COMPAT \
+     || __LDOUBLE_REDIRECTS_TO_FLOAT128_ABI == 1
+#  undef __REDIR_TO
+#  undef __MATHDECL_1
+#  undef __MATHDECL
+#define __MATHDECL(type, function, args) \
+  __MATHDECL_IMPL(type, function, args)
+#  define __MATHDECL_1(type, function, args) \
+  __MATHDECL_1_IMPL(type, function, args)
+# endif
 #endif
 #undef	_Mdouble_
 #undef	__MATH_PRECNAME
@@ -215,6 +239,7 @@ __BEGIN_DECLS
 # undef _Mdouble_complex_
 #endif
 
+#undef	__MATHDECL_1_IMPL
 #undef	__MATHDECL_1
 #undef	__MATHDECL
 #undef	__MATHCALL

lib/libc/include/generic-glibc/elf.h

@@ -330,7 +330,7 @@ typedef struct
 #define EM_CLOUDSHIELD	192	/* CloudShield */
 #define EM_COREA_1ST	193	/* KIPO-KAIST Core-A 1st gen. */
 #define EM_COREA_2ND	194	/* KIPO-KAIST Core-A 2nd gen. */
-#define EM_ARC_COMPACT2	195	/* Synopsys ARCompact V2 */
+#define EM_ARCV2	195	/* Synopsys ARCv2 ISA.  */
 #define EM_OPEN8	196	/* Open8 RISC */
 #define EM_RL78		197	/* Renesas RL78 */
 #define EM_VIDEOCORE5	198	/* Broadcom VideoCore V */
@@ -721,6 +721,7 @@ typedef struct
 #define PT_GNU_EH_FRAME	0x6474e550	/* GCC .eh_frame_hdr segment */
 #define PT_GNU_STACK	0x6474e551	/* Indicates stack executability */
 #define PT_GNU_RELRO	0x6474e552	/* Read-only after relocation */
+#define PT_GNU_PROPERTY	0x6474e553	/* GNU property */
 #define PT_LOSUNW	0x6ffffffa
 #define PT_SUNWBSS	0x6ffffffa	/* Sun Specific segment */
 #define PT_SUNWSTACK	0x6ffffffb	/* Stack segment */
@@ -1318,6 +1319,12 @@ typedef struct
 /* Application-specific semantics, hi */
 #define GNU_PROPERTY_HIUSER			0xffffffff
 
+/* AArch64 specific GNU properties.  */
+#define GNU_PROPERTY_AARCH64_FEATURE_1_AND	0xc0000000
+
+#define GNU_PROPERTY_AARCH64_FEATURE_1_BTI	(1U << 0)
+#define GNU_PROPERTY_AARCH64_FEATURE_1_PAC	(1U << 1)
+
 /* The x86 instruction sets indicated by the corresponding bits are
    used in program.  Their support in the hardware is optional.  */
 #define GNU_PROPERTY_X86_ISA_1_USED		0xc0000000
@@ -3946,8 +3953,9 @@ enum
 #define R_RISCV_SET16		55
 #define R_RISCV_SET32		56
 #define R_RISCV_32_PCREL	57
+#define R_RISCV_IRELATIVE	58
 
-#define R_RISCV_NUM		58
+#define R_RISCV_NUM		59
 
 /* BPF specific declarations.  */
 
@@ -4027,6 +4035,74 @@ enum
 #define R_NDS32_TLS_TPOFF	102
 #define R_NDS32_TLS_DESC	119
 
+/* ARCompact/ARCv2 specific relocs.  */
+#define R_ARC_NONE		0x0
+#define R_ARC_8			0x1
+#define R_ARC_16		0x2
+#define R_ARC_24		0x3
+#define R_ARC_32		0x4
+#define R_ARC_B26		0x5
+#define R_ARC_B22_PCREL		0x6
+#define R_ARC_H30		0x7
+#define R_ARC_N8		0x8
+#define R_ARC_N16		0x9
+#define R_ARC_N24		0xA
+#define R_ARC_N32		0xB
+#define R_ARC_SDA		0xC
+#define R_ARC_SECTOFF		0xD
+#define R_ARC_S21H_PCREL	0xE
+#define R_ARC_S21W_PCREL	0xF
+#define R_ARC_S25H_PCREL	0x10
+#define R_ARC_S25W_PCREL	0x11
+#define R_ARC_SDA32		0x12
+#define R_ARC_SDA_LDST		0x13
+#define R_ARC_SDA_LDST1		0x14
+#define R_ARC_SDA_LDST2		0x15
+#define R_ARC_SDA16_LD		0x16
+#define R_ARC_SDA16_LD1		0x17
+#define R_ARC_SDA16_LD2		0x18
+#define R_ARC_S13_PCREL		0x19
+#define R_ARC_W			0x1A
+#define R_ARC_32_ME		0x1B
+#define R_ARC_N32_ME		0x1C
+#define R_ARC_SECTOFF_ME	0x1D
+#define R_ARC_SDA32_ME		0x1E
+#define R_ARC_W_ME		0x1F
+#define R_ARC_H30_ME		0x20
+#define R_ARC_SECTOFF_U8	0x21
+#define R_ARC_SECTOFF_S9	0x22
+#define R_AC_SECTOFF_U8		0x23
+#define R_AC_SECTOFF_U8_1	0x24
+#define R_AC_SECTOFF_U8_2	0x25
+#define R_AC_SECTOFF_S9		0x26
+#define R_AC_SECTOFF_S9_1	0x27
+#define R_AC_SECTOFF_S9_2	0x28
+#define R_ARC_SECTOFF_ME_1	0x29
+#define R_ARC_SECTOFF_ME_2	0x2A
+#define R_ARC_SECTOFF_1		0x2B
+#define R_ARC_SECTOFF_2		0x2C
+#define R_ARC_PC32		0x32
+#define R_ARC_GOTPC32		0x33
+#define R_ARC_PLT32		0x34
+#define R_ARC_COPY		0x35
+#define R_ARC_GLOB_DAT		0x36
+#define R_ARC_JUMP_SLOT		0x37
+#define R_ARC_RELATIVE		0x38
+#define R_ARC_GOTOFF		0x39
+#define R_ARC_GOTPC		0x3A
+#define R_ARC_GOT32		0x3B
+
+#define R_ARC_TLS_DTPMOD	0x42
+#define R_ARC_TLS_DTPOFF	0x43
+#define R_ARC_TLS_TPOFF		0x44
+#define R_ARC_TLS_GD_GOT	0x45
+#define R_ARC_TLS_GD_LD	        0x46
+#define R_ARC_TLS_GD_CALL	0x47
+#define R_ARC_TLS_IE_GOT	0x48
+#define R_ARC_TLS_DTPOFF_S9	0x4a
+#define R_ARC_TLS_LE_S9		0x4a
+#define R_ARC_TLS_LE_32		0x4b
+
 __END_DECLS
 
 #endif	/* elf.h */

lib/libc/include/generic-glibc/err.h

@@ -52,7 +52,8 @@ extern void errx (int __status, const char *__format, ...)
 extern void verrx (int __status, const char *, __gnuc_va_list)
      __attribute__ ((__noreturn__, __format__ (__printf__, 2, 0)));
 
-#ifdef __LDBL_COMPAT
+#include <bits/floatn.h>
+#if defined __LDBL_COMPAT || __LDOUBLE_REDIRECTS_TO_FLOAT128_ABI == 1
 # include <bits/err-ldbl.h>
 #endif
 

lib/libc/include/generic-glibc/error.h

@@ -47,11 +47,13 @@ extern unsigned int error_message_count;
    variable controls whether this mode is selected or not.  */
 extern int error_one_per_line;
 
-#ifdef __LDBL_COMPAT
+#include <bits/floatn.h>
+#if defined __LDBL_COMPAT || __LDOUBLE_REDIRECTS_TO_FLOAT128_ABI == 1
 # include <bits/error-ldbl.h>
 #else
 /* Do not inline error and error_at_line when long double has the same
-   size of double, because that would invalidate the redirections to the
+   size of double, nor when long double reuses the float128
+   implementation, because that would invalidate the redirections to the
    compatibility functions.  */
 # if defined __extern_always_inline && defined __va_arg_pack
 #  include <bits/error.h>

lib/libc/include/generic-glibc/features.h

@@ -454,7 +454,7 @@
 /* Major and minor version number of the GNU C library package.  Use
    these macros to test for features in specific releases.  */
 #define	__GLIBC__	2
-#define	__GLIBC_MINOR__	31
+#define	__GLIBC_MINOR__	32
 
 #define __GLIBC_PREREQ(maj, min) \
 	((__GLIBC__ << 16) + __GLIBC_MINOR__ >= ((maj) << 16) + (min))

lib/libc/include/generic-glibc/fenv.h

@@ -140,10 +140,6 @@ extern int fegetmode (femode_t *__modep) __THROW;
 extern int fesetmode (const femode_t *__modep) __THROW;
 #endif
 
-/* Include optimization.  */
-#ifdef __OPTIMIZE__
-# include <bits/fenvinline.h>
-#endif
 
 /* NaN support.  */
 

lib/libc/include/generic-glibc/gnu/lib-names-32.h

@@ -20,8 +20,6 @@
 #define LIBNSS_FILES_SO                 "libnss_files.so.2"
 #define LIBNSS_HESIOD_SO                "libnss_hesiod.so.2"
 #define LIBNSS_LDAP_SO                  "libnss_ldap.so.2"
-#define LIBNSS_NISPLUS_SO               "libnss_nisplus.so.2"
-#define LIBNSS_NIS_SO                   "libnss_nis.so.2"
 #define LIBNSS_TEST1_SO                 "libnss_test1.so.2"
 #define LIBNSS_TEST2_SO                 "libnss_test2.so.2"
 #define LIBPTHREAD_SO                   "libpthread.so.0"

lib/libc/include/generic-glibc/gnu/lib-names-hard.h

@@ -20,8 +20,6 @@
 #define LIBNSS_FILES_SO                 "libnss_files.so.2"
 #define LIBNSS_HESIOD_SO                "libnss_hesiod.so.2"
 #define LIBNSS_LDAP_SO                  "libnss_ldap.so.2"
-#define LIBNSS_NISPLUS_SO               "libnss_nisplus.so.2"
-#define LIBNSS_NIS_SO                   "libnss_nis.so.2"
 #define LIBNSS_TEST1_SO                 "libnss_test1.so.2"
 #define LIBNSS_TEST2_SO                 "libnss_test2.so.2"
 #define LIBPTHREAD_SO                   "libpthread.so.0"

lib/libc/include/generic-glibc/gnu/lib-names-n32_hard.h

@@ -19,8 +19,6 @@
 #define LIBNSS_FILES_SO                 "libnss_files.so.2"
 #define LIBNSS_HESIOD_SO                "libnss_hesiod.so.2"
 #define LIBNSS_LDAP_SO                  "libnss_ldap.so.2"
-#define LIBNSS_NISPLUS_SO               "libnss_nisplus.so.2"
-#define LIBNSS_NIS_SO                   "libnss_nis.so.2"
 #define LIBNSS_TEST1_SO                 "libnss_test1.so.2"
 #define LIBNSS_TEST2_SO                 "libnss_test2.so.2"
 #define LIBPTHREAD_SO                   "libpthread.so.0"

lib/libc/include/generic-glibc/gnu/lib-names-n64_hard.h

@@ -19,8 +19,6 @@
 #define LIBNSS_FILES_SO                 "libnss_files.so.2"
 #define LIBNSS_HESIOD_SO                "libnss_hesiod.so.2"
 #define LIBNSS_LDAP_SO                  "libnss_ldap.so.2"
-#define LIBNSS_NISPLUS_SO               "libnss_nisplus.so.2"
-#define LIBNSS_NIS_SO                   "libnss_nis.so.2"
 #define LIBNSS_TEST1_SO                 "libnss_test1.so.2"
 #define LIBNSS_TEST2_SO                 "libnss_test2.so.2"
 #define LIBPTHREAD_SO                   "libpthread.so.0"

lib/libc/include/generic-glibc/gnu/lib-names-o32_hard.h

@@ -19,8 +19,6 @@
 #define LIBNSS_FILES_SO                 "libnss_files.so.2"
 #define LIBNSS_HESIOD_SO                "libnss_hesiod.so.2"
 #define LIBNSS_LDAP_SO                  "libnss_ldap.so.2"
-#define LIBNSS_NISPLUS_SO               "libnss_nisplus.so.2"
-#define LIBNSS_NIS_SO                   "libnss_nis.so.2"
 #define LIBNSS_TEST1_SO                 "libnss_test1.so.2"
 #define LIBNSS_TEST2_SO                 "libnss_test2.so.2"
 #define LIBPTHREAD_SO                   "libpthread.so.0"

lib/libc/include/generic-glibc/gnu/lib-names-soft.h

@@ -20,8 +20,6 @@
 #define LIBNSS_FILES_SO                 "libnss_files.so.2"
 #define LIBNSS_HESIOD_SO                "libnss_hesiod.so.2"
 #define LIBNSS_LDAP_SO                  "libnss_ldap.so.2"
-#define LIBNSS_NISPLUS_SO               "libnss_nisplus.so.2"
-#define LIBNSS_NIS_SO                   "libnss_nis.so.2"
 #define LIBNSS_TEST1_SO                 "libnss_test1.so.2"
 #define LIBNSS_TEST2_SO                 "libnss_test2.so.2"
 #define LIBPTHREAD_SO                   "libpthread.so.0"

lib/libc/include/generic-glibc/gnu/stubs-32.h

@@ -10,9 +10,7 @@
 #define __stub_chflags
 #define __stub_fchflags
 #define __stub_gtty
-#define __stub_lchmod
 #define __stub_revoke
 #define __stub_setlogin
 #define __stub_sigreturn
-#define __stub_sstk
 #define __stub_stty

lib/libc/include/generic-glibc/gnu/stubs-64.h

@@ -10,9 +10,7 @@
 #define __stub_chflags
 #define __stub_fchflags
 #define __stub_gtty
-#define __stub_lchmod
 #define __stub_revoke
 #define __stub_setlogin
 #define __stub_sigreturn
-#define __stub_sstk
 #define __stub_stty

lib/libc/include/generic-glibc/gnu/stubs-hard.h

@@ -13,9 +13,7 @@
 #define __stub_chflags
 #define __stub_fchflags
 #define __stub_gtty
-#define __stub_lchmod
 #define __stub_revoke
 #define __stub_setlogin
 #define __stub_sigreturn
-#define __stub_sstk
 #define __stub_stty

lib/libc/include/generic-glibc/gnu/stubs-n32_hard.h

@@ -12,9 +12,7 @@
 #define __stub_chflags
 #define __stub_fchflags
 #define __stub_gtty
-#define __stub_lchmod
 #define __stub_revoke
 #define __stub_setlogin
 #define __stub_sigreturn
-#define __stub_sstk
 #define __stub_stty

lib/libc/include/generic-glibc/gnu/stubs-n64_hard.h

@@ -12,9 +12,7 @@
 #define __stub_chflags
 #define __stub_fchflags
 #define __stub_gtty
-#define __stub_lchmod
 #define __stub_revoke
 #define __stub_setlogin
 #define __stub_sigreturn
-#define __stub_sstk
 #define __stub_stty

lib/libc/include/generic-glibc/gnu/stubs-o32_hard.h

@@ -10,9 +10,7 @@
 #define __stub_chflags
 #define __stub_fchflags
 #define __stub_gtty
-#define __stub_lchmod
 #define __stub_revoke
 #define __stub_setlogin
 #define __stub_sigreturn
-#define __stub_sstk
 #define __stub_stty

lib/libc/include/generic-glibc/gnu/stubs-soft.h

@@ -13,9 +13,7 @@
 #define __stub_chflags
 #define __stub_fchflags
 #define __stub_gtty
-#define __stub_lchmod
 #define __stub_revoke
 #define __stub_setlogin
 #define __stub_sigreturn
-#define __stub_sstk
 #define __stub_stty

lib/libc/include/generic-glibc/inttypes.h

@@ -321,10 +321,10 @@ extern long int __strtol_internal (const char *__restrict __nptr,
   __THROW __nonnull ((1)) __wur;
 /* Like `strtol' but convert to `intmax_t'.  */
 __extern_inline intmax_t
-__NTH (strtoimax (const char *__restrict nptr, char **__restrict endptr,
+__NTH (strtoimax (const char *__restrict __nptr, char **__restrict __endptr,
-		  int base))
+		  int __base))
 {
-  return __strtol_internal (nptr, endptr, base, 0);
+  return __strtol_internal (__nptr, __endptr, __base, 0);
 }
 
 extern unsigned long int __strtoul_internal (const char *__restrict __nptr,
@@ -333,10 +333,10 @@ extern unsigned long int __strtoul_internal (const char *__restrict __nptr,
   __THROW __nonnull ((1)) __wur;
 /* Like `strtoul' but convert to `uintmax_t'.  */
 __extern_inline uintmax_t
-__NTH (strtoumax (const char *__restrict nptr, char **__restrict endptr,
+__NTH (strtoumax (const char *__restrict __nptr, char **__restrict __endptr,
-		  int base))
+		  int __base))
 {
-  return __strtoul_internal (nptr, endptr, base, 0);
+  return __strtoul_internal (__nptr, __endptr, __base, 0);
 }
 
 extern long int __wcstol_internal (const __gwchar_t * __restrict __nptr,
@@ -345,10 +345,10 @@ extern long int __wcstol_internal (const __gwchar_t * __restrict __nptr,
   __THROW __nonnull ((1)) __wur;
 /* Like `wcstol' but convert to `intmax_t'.  */
 __extern_inline intmax_t
-__NTH (wcstoimax (const __gwchar_t *__restrict nptr,
+__NTH (wcstoimax (const __gwchar_t *__restrict __nptr,
-		  __gwchar_t **__restrict endptr, int base))
+		  __gwchar_t **__restrict __endptr, int __base))
 {
-  return __wcstol_internal (nptr, endptr, base, 0);
+  return __wcstol_internal (__nptr, __endptr, __base, 0);
 }
 
 extern unsigned long int __wcstoul_internal (const __gwchar_t *
@@ -359,10 +359,10 @@ extern unsigned long int __wcstoul_internal (const __gwchar_t *
   __THROW __nonnull ((1)) __wur;
 /* Like `wcstoul' but convert to `uintmax_t'.  */
 __extern_inline uintmax_t
-__NTH (wcstoumax (const __gwchar_t *__restrict nptr,
+__NTH (wcstoumax (const __gwchar_t *__restrict __nptr,
-		  __gwchar_t **__restrict endptr, int base))
+		  __gwchar_t **__restrict __endptr, int __base))
 {
-  return __wcstoul_internal (nptr, endptr, base, 0);
+  return __wcstoul_internal (__nptr, __endptr, __base, 0);
 }
 
 # else /* __WORDSIZE == 32 */
@@ -374,10 +374,10 @@ extern long long int __strtoll_internal (const char *__restrict __nptr,
   __THROW __nonnull ((1)) __wur;
 /* Like `strtol' but convert to `intmax_t'.  */
 __extern_inline intmax_t
-__NTH (strtoimax (const char *__restrict nptr, char **__restrict endptr,
+__NTH (strtoimax (const char *__restrict __nptr, char **__restrict __endptr,
-		  int base))
+		  int __base))
 {
-  return __strtoll_internal (nptr, endptr, base, 0);
+  return __strtoll_internal (__nptr, __endptr, __base, 0);
 }
 
 __extension__
@@ -390,10 +390,10 @@ extern unsigned long long int __strtoull_internal (const char *
   __THROW __nonnull ((1)) __wur;
 /* Like `strtoul' but convert to `uintmax_t'.  */
 __extern_inline uintmax_t
-__NTH (strtoumax (const char *__restrict nptr, char **__restrict endptr,
+__NTH (strtoumax (const char *__restrict __nptr, char **__restrict __endptr,
-		  int base))
+		  int __base))
 {
-  return __strtoull_internal (nptr, endptr, base, 0);
+  return __strtoull_internal (__nptr, __endptr, __base, 0);
 }
 
 __extension__
@@ -403,10 +403,10 @@ extern long long int __wcstoll_internal (const __gwchar_t *__restrict __nptr,
   __THROW __nonnull ((1)) __wur;
 /* Like `wcstol' but convert to `intmax_t'.  */
 __extern_inline intmax_t
-__NTH (wcstoimax (const __gwchar_t *__restrict nptr,
+__NTH (wcstoimax (const __gwchar_t *__restrict __nptr,
-		  __gwchar_t **__restrict endptr, int base))
+		  __gwchar_t **__restrict __endptr, int __base))
 {
-  return __wcstoll_internal (nptr, endptr, base, 0);
+  return __wcstoll_internal (__nptr, __endptr, __base, 0);
 }
 
 
@@ -420,10 +420,10 @@ extern unsigned long long int __wcstoull_internal (const __gwchar_t *
   __THROW __nonnull ((1)) __wur;
 /* Like `wcstoul' but convert to `uintmax_t'.  */
 __extern_inline uintmax_t
-__NTH (wcstoumax (const __gwchar_t *__restrict nptr,
+__NTH (wcstoumax (const __gwchar_t *__restrict __nptr,
-		  __gwchar_t **__restrict endptr, int base))
+		  __gwchar_t **__restrict __endptr, int __base))
 {
-  return __wcstoull_internal (nptr, endptr, base, 0);
+  return __wcstoull_internal (__nptr, __endptr, __base, 0);
 }
 
 # endif	/* __WORDSIZE == 32	*/

lib/libc/include/generic-glibc/malloc.h

@@ -75,11 +75,11 @@ extern void *pvalloc (size_t __size) __THROW __attribute_malloc__ __wur;
 
 /* Underlying allocation function; successive calls should return
    contiguous pieces of memory.  */
-extern void *(*__morecore) (ptrdiff_t __size);
+extern void *(*__morecore) (ptrdiff_t __size) __MALLOC_DEPRECATED;
 
 /* Default value of `__morecore'.  */
 extern void *__default_morecore (ptrdiff_t __size)
-__THROW __attribute_malloc__;
+__THROW __attribute_malloc__  __MALLOC_DEPRECATED;
 
 /* SVID2/XPG mallinfo structure */
 
@@ -156,7 +156,8 @@ extern void *(*__MALLOC_HOOK_VOLATILE __memalign_hook)(size_t __alignment,
                                                        size_t __size,
                                                        const void *)
 __MALLOC_DEPRECATED;
-extern void (*__MALLOC_HOOK_VOLATILE __after_morecore_hook) (void);
+extern void (*__MALLOC_HOOK_VOLATILE __after_morecore_hook) (void)
+  __MALLOC_DEPRECATED;
 
 
 __END_DECLS

lib/libc/include/generic-glibc/math.h

@@ -279,8 +279,17 @@ enum
 #define __MATHDECLX(type, function,suffix, args, attrib) \
   __MATHDECL_1(type, function,suffix, args) __attribute__ (attrib); \
   __MATHDECL_1(type, __CONCAT(__,function),suffix, args) __attribute__ (attrib)
-#define __MATHDECL_1(type, function,suffix, args) \
+#define __MATHDECL_1_IMPL(type, function, suffix, args) \
   extern type __MATH_PRECNAME(function,suffix) args __THROW
+#define __MATHDECL_1(type, function, suffix, args) \
+  __MATHDECL_1_IMPL(type, function, suffix, args)
+/* Ignore the alias by default.  The alias is only useful with
+   redirections.  */
+#define __MATHDECL_ALIAS(type, function, suffix, args, alias) \
+  __MATHDECL_1(type, function, suffix, args)
+
+#define __MATHREDIR(type, function, suffix, args, to) \
+  extern type __REDIRECT_NTH (__MATH_PRECNAME (function, suffix), args, to)
 
 #define _Mdouble_		double
 #define __MATH_PRECNAME(name,r)	__CONCAT(name,r)
@@ -331,11 +340,37 @@ extern long double __REDIRECT_NTH (nexttowardl,
 #   endif
 
 #   undef __MATHDECL_1
-#   define __MATHDECL_2(type, function,suffix, args, alias) \
-  extern type __REDIRECT_NTH(__MATH_PRECNAME(function,suffix), \
-			     args, alias)
 #   define __MATHDECL_1(type, function,suffix, args) \
-  __MATHDECL_2(type, function,suffix, args, __CONCAT(function,suffix))
+  __MATHREDIR(type, function, suffix, args, __CONCAT(function,suffix))
+
+#  elif __LDOUBLE_REDIRECTS_TO_FLOAT128_ABI == 1
+#   ifdef __REDIRECT_NTH
+#    ifdef __USE_ISOC99
+extern float __REDIRECT_NTH (nexttowardf, (float __x, long double __y),
+			    __nexttowardf_to_ieee128)
+  __attribute__ ((__const__));
+extern double __REDIRECT_NTH (nexttoward, (double __x, long double __y),
+			     __nexttoward_to_ieee128)
+  __attribute__ ((__const__));
+
+#define __dremieee128 __remainderieee128
+#define __gammaieee128 __lgammaieee128
+
+#    endif
+#   endif
+
+#   undef __MATHDECL_1
+#   undef __MATHDECL_ALIAS
+
+#   define __REDIRTO(function, suffix) \
+  __ ## function ## ieee128 ## suffix
+#   define __REDIRTO_ALT(function, suffix) \
+  __ ## function ## f128 ## suffix
+
+#   define __MATHDECL_1(type, function, suffix, args) \
+  __MATHREDIR (type, function, suffix, args, __REDIRTO (function, suffix))
+#   define __MATHDECL_ALIAS(type, function, suffix, args, alias) \
+  __MATHREDIR (type, function, suffix, args, __REDIRTO_ALT (alias, suffix))
 #  endif
 
 /* Include the file of declarations again, this time using `long double'
@@ -348,11 +383,23 @@ extern long double __REDIRECT_NTH (nexttowardl,
 #  define __MATH_DECLARE_LDOUBLE   1
 #  include <bits/mathcalls-helper-functions.h>
 #  include <bits/mathcalls.h>
+
 #  undef _Mdouble_
 #  undef __MATH_PRECNAME
 #  undef __MATH_DECLARING_DOUBLE
 #  undef __MATH_DECLARING_FLOATN
 
+#  if defined __LDBL_COMPAT \
+      || __LDOUBLE_REDIRECTS_TO_FLOAT128_ABI == 1
+#   undef __REDIRTO
+#   undef __REDIRTO_ALT
+#   undef __MATHDECL_1
+#   undef __MATHDECL_ALIAS
+#   define __MATHDECL_1(type, function, suffix, args) \
+  __MATHDECL_1_IMPL(type, function, suffix, args)
+#   define __MATHDECL_ALIAS(type, function, suffix, args, alias) \
+  __MATHDECL_1(type, function, suffix, args)
+#  endif
 # endif /* !(__NO_LONG_DOUBLE_MATH && _LIBC) || __LDBL_COMPAT */
 
 #endif	/* Use ISO C99.  */
@@ -479,7 +526,9 @@ extern long double __REDIRECT_NTH (nexttowardl,
 # undef __MATH_DECLARING_FLOATN
 #endif /* __HAVE_DISTINCT_FLOAT128X || (__HAVE_FLOAT128X && !_LIBC).  */
 
+#undef	__MATHDECL_1_IMPL
 #undef	__MATHDECL_1
+#undef	__MATHDECL_ALIAS
 #undef	__MATHDECL
 #undef	__MATHCALL
 
@@ -511,6 +560,11 @@ extern long double __REDIRECT_NTH (nexttowardl,
 # ifdef __LDBL_COMPAT
 #  define __MATHCALL_REDIR_NAME(name) f ## name
 #  undef __MATHCALL_NARROW
+#  define __MATHCALL_NARROW(func, redir, nargs) \
+  __MATHCALL_NARROW_REDIR (func, redir, nargs)
+# elif __LDOUBLE_REDIRECTS_TO_FLOAT128_ABI == 1
+#  define __MATHCALL_REDIR_NAME(name) __ ## f32 ## name ## ieee128
+#  undef __MATHCALL_NARROW
 #  define __MATHCALL_NARROW(func, redir, nargs) \
   __MATHCALL_NARROW_REDIR (func, redir, nargs)
 # endif
@@ -518,7 +572,8 @@ extern long double __REDIRECT_NTH (nexttowardl,
 # undef _Mret_
 # undef _Marg_
 # undef __MATHCALL_NAME
-# ifdef __LDBL_COMPAT
+# if defined __LDBL_COMPAT \
+     || __LDOUBLE_REDIRECTS_TO_FLOAT128_ABI == 1
 #  undef __MATHCALL_REDIR_NAME
 #  undef __MATHCALL_NARROW
 #  define __MATHCALL_NARROW(func, redir, nargs) \
@@ -531,6 +586,11 @@ extern long double __REDIRECT_NTH (nexttowardl,
 # ifdef __LDBL_COMPAT
 #  define __MATHCALL_REDIR_NAME(name) __nldbl_d ## name ## l
 #  undef __MATHCALL_NARROW
+#  define __MATHCALL_NARROW(func, redir, nargs) \
+  __MATHCALL_NARROW_REDIR (func, redir, nargs)
+# elif __LDOUBLE_REDIRECTS_TO_FLOAT128_ABI == 1
+#  define __MATHCALL_REDIR_NAME(name) __ ## f64 ## name ## ieee128
+#  undef __MATHCALL_NARROW
 #  define __MATHCALL_NARROW(func, redir, nargs) \
   __MATHCALL_NARROW_REDIR (func, redir, nargs)
 # endif
@@ -538,7 +598,8 @@ extern long double __REDIRECT_NTH (nexttowardl,
 # undef _Mret_
 # undef _Marg_
 # undef __MATHCALL_NAME
-# ifdef __LDBL_COMPAT
+# if defined __LDBL_COMPAT \
+     || __LDOUBLE_REDIRECTS_TO_FLOAT128_ABI == 1
 #  undef __MATHCALL_REDIR_NAME
 #  undef __MATHCALL_NARROW
 #  define __MATHCALL_NARROW(func, redir, nargs) \
@@ -1196,13 +1257,6 @@ iszero (__T __val)
 # error "M_* values needed for _Float128x"
 #endif
 
-/* When compiling in strict ISO C compatible mode we must not use the
-   inline functions since they, among other things, do not set the
-   `errno' variable correctly.  */
-#if defined __STRICT_ANSI__ && !defined __NO_MATH_INLINES
-# define __NO_MATH_INLINES	1
-#endif
-
 #ifdef __USE_ISOC99
 # if __GNUC_PREREQ (3, 1)
 /* ISO C99 defines some macros to compare number while taking care for
@@ -1240,12 +1294,6 @@ iszero (__T __val)
 # endif
 #endif
 
-/* Get machine-dependent inline versions (if there are any).  */
-#ifdef __USE_EXTERN_INLINES
-# include <bits/mathinline.h>
-#endif
-
-
 #if __GLIBC_USE (IEC_60559_BFP_EXT_C2X)
 /* An expression whose type has the widest of the evaluation formats
    of X and Y (which are of floating-point types).  */

lib/libc/include/generic-glibc/monetary.h

@@ -50,7 +50,8 @@ extern ssize_t strfmon_l (char *__restrict __s, size_t __maxsize,
      __THROW __attribute_format_strfmon__ (4, 5);
 #endif
 
-#ifdef __LDBL_COMPAT
+#include <bits/floatn.h>
+#if defined __LDBL_COMPAT || __LDOUBLE_REDIRECTS_TO_FLOAT128_ABI == 1
 # include <bits/monetary-ldbl.h>
 #endif
 

lib/libc/include/generic-glibc/netinet/icmp6.h

@@ -85,16 +85,16 @@ struct icmp6_hdr
 #define ICMP6_PARAMPROB_OPTION        2 /* unrecognized IPv6 option */
 
 #define ICMP6_FILTER_WILLPASS(type, filterp) \
-	((((filterp)->icmp6_filt[(type) >> 5]) & (1 << ((type) & 31))) == 0)
+	((((filterp)->icmp6_filt[(type) >> 5]) & (1U << ((type) & 31))) == 0)
 
 #define ICMP6_FILTER_WILLBLOCK(type, filterp) \
-	((((filterp)->icmp6_filt[(type) >> 5]) & (1 << ((type) & 31))) != 0)
+	((((filterp)->icmp6_filt[(type) >> 5]) & (1U << ((type) & 31))) != 0)
 
 #define ICMP6_FILTER_SETPASS(type, filterp) \
-	((((filterp)->icmp6_filt[(type) >> 5]) &= ~(1 << ((type) & 31))))
+	((((filterp)->icmp6_filt[(type) >> 5]) &= ~(1U << ((type) & 31))))
 
 #define ICMP6_FILTER_SETBLOCK(type, filterp) \
-	((((filterp)->icmp6_filt[(type) >> 5]) |=  (1 << ((type) & 31))))
+	((((filterp)->icmp6_filt[(type) >> 5]) |=  (1U << ((type) & 31))))
 
 #define ICMP6_FILTER_SETPASSALL(filterp) \
 	memset (filterp, 0, sizeof (struct icmp6_filter));

lib/libc/include/generic-glibc/netinet/in.h

@@ -87,8 +87,12 @@ enum
 #define IPPROTO_UDPLITE		IPPROTO_UDPLITE
     IPPROTO_MPLS = 137,    /* MPLS in IP.  */
 #define IPPROTO_MPLS		IPPROTO_MPLS
+    IPPROTO_ETHERNET = 143, /* Ethernet-within-IPv6 Encapsulation.  */
+#define IPPROTO_ETHERNET	IPPROTO_ETHERNET
     IPPROTO_RAW = 255,	   /* Raw IP packets.  */
 #define IPPROTO_RAW		IPPROTO_RAW
+    IPPROTO_MPTCP = 262,   /* Multipath TCP connection.  */
+#define IPPROTO_MPTCP		IPPROTO_MPTCP
     IPPROTO_MAX
   };
 

lib/libc/include/generic-glibc/nss.h

@@ -19,10 +19,12 @@
    and for implementors of new services.  */
 
 #ifndef _NSS_H
-#define _NSS_H	1
+#define _NSS_H  1
 
 #include <features.h>
+#include <stddef.h>
 #include <stdint.h>
+#include <sys/types.h>
 
 
 __BEGIN_DECLS
@@ -56,7 +58,204 @@ struct gaih_addrtuple
    Attention: Using this function repeatedly will slowly eat up the
    whole memory since previous selection data cannot be freed.  */
 extern int __nss_configure_lookup (const char *__dbname,
-				   const char *__string) __THROW;
+                                   const char *__string) __THROW;
+
+/* NSS-related types.  */
+struct __netgrent;
+struct aliasent;
+struct ether_addr;
+struct etherent;
+struct group;
+struct hostent;
+struct netent;
+struct passwd;
+struct protoent;
+struct rpcent;
+struct servent;
+struct sgrp;
+struct spwd;
+struct traced_file;
+
+/* Types of functions exported from NSS service modules.  */
+typedef enum nss_status nss_endaliasent (void);
+typedef enum nss_status nss_endetherent (void);
+typedef enum nss_status nss_endgrent (void);
+typedef enum nss_status nss_endhostent (void);
+typedef enum nss_status nss_endnetent (void);
+typedef enum nss_status nss_endnetgrent (struct __netgrent *);
+typedef enum nss_status nss_endprotoent (void);
+typedef enum nss_status nss_endpwent (void);
+typedef enum nss_status nss_endrpcent (void);
+typedef enum nss_status nss_endservent (void);
+typedef enum nss_status nss_endsgent (void);
+typedef enum nss_status nss_endspent (void);
+typedef enum nss_status nss_getaliasbyname_r (const char *, struct aliasent *,
+                                              char *, size_t, int *);
+typedef enum nss_status nss_getaliasent_r (struct aliasent *,
+                                           char *, size_t, int *);
+typedef enum nss_status nss_getcanonname_r (const char *, char *, size_t,
+                                            char **, int *, int *);
+typedef enum nss_status nss_getetherent_r (struct etherent *,
+                                           char *, size_t, int *);
+typedef enum nss_status nss_getgrent_r (struct group *, char *, size_t, int *);
+typedef enum nss_status nss_getgrgid_r (__gid_t, struct group *,
+                                        char *, size_t, int *);
+typedef enum nss_status nss_getgrnam_r (const char *, struct group *,
+                                        char *, size_t, int *);
+typedef enum nss_status nss_gethostbyaddr2_r (const void *, __socklen_t, int,
+                                              struct hostent *, char *, size_t,
+                                              int *, int *, int32_t *);
+typedef enum nss_status nss_gethostbyaddr_r (const void *, __socklen_t, int,
+                                             struct hostent *, char *, size_t,
+                                             int *, int *);
+typedef enum nss_status nss_gethostbyname2_r (const char *, int,
+                                              struct hostent *, char *, size_t,
+                                              int *, int *);
+typedef enum nss_status nss_gethostbyname3_r (const char *, int,
+                                              struct hostent *, char *, size_t,
+                                              int *, int *, int32_t *,
+                                              char **);
+typedef enum nss_status nss_gethostbyname4_r (const char *,
+                                              struct gaih_addrtuple **,
+                                              char *, size_t,
+                                              int *, int *, int32_t *);
+typedef enum nss_status nss_gethostbyname_r (const char *, struct hostent *,
+                                             char *, size_t, int *, int *);
+typedef enum nss_status nss_gethostent_r (struct hostent *, char *, size_t,
+                                          int *, int *);
+typedef enum nss_status nss_gethostton_r (const char *, struct etherent *,
+                                          char *, size_t, int *);
+typedef enum nss_status nss_getnetbyaddr_r (uint32_t, int, struct netent *,
+                                            char *, size_t, int *, int *);
+typedef enum nss_status nss_getnetbyname_r (const char *, struct netent *,
+                                            char *, size_t, int *, int *);
+typedef enum nss_status nss_getnetent_r (struct netent *,
+                                         char *, size_t, int *, int *);
+typedef enum nss_status nss_getnetgrent_r (struct __netgrent *,
+                                           char *, size_t, int *);
+typedef enum nss_status nss_getntohost_r (const struct ether_addr *,
+                                          struct etherent *, char *, size_t,
+                                          int *);
+typedef enum nss_status nss_getprotobyname_r (const char *, struct protoent *,
+                                              char *, size_t, int *);
+typedef enum nss_status nss_getprotobynumber_r (int, struct protoent *,
+                                                char *, size_t, int *);
+typedef enum nss_status nss_getprotoent_r (struct protoent *,
+                                           char *, size_t, int *);
+typedef enum nss_status nss_getpublickey (const char *, char *, int *);
+typedef enum nss_status nss_getpwent_r (struct passwd *,
+                                        char *, size_t, int *);
+typedef enum nss_status nss_getpwnam_r (const char *, struct passwd *,
+                                        char *, size_t, int *);
+typedef enum nss_status nss_getpwuid_r (__uid_t, struct passwd *,
+                                        char *, size_t, int *);
+typedef enum nss_status nss_getrpcbyname_r (const char *, struct rpcent *,
+                                            char *, size_t, int *);
+typedef enum nss_status nss_getrpcbynumber_r (int, struct rpcent *,
+                                              char *, size_t, int *);
+typedef enum nss_status nss_getrpcent_r (struct rpcent *,
+                                         char *, size_t, int *);
+typedef enum nss_status nss_getsecretkey (const char *, char *, char *, int *);
+typedef enum nss_status nss_getservbyname_r (const char *, const char *,
+                                             struct servent *, char *, size_t,
+                                             int *);
+typedef enum nss_status nss_getservbyport_r (int, const char *,
+                                             struct servent *, char *, size_t,
+                                             int *);
+typedef enum nss_status nss_getservent_r (struct servent *, char *, size_t,
+                                          int *);
+typedef enum nss_status nss_getsgent_r (struct sgrp *, char *, size_t, int *);
+typedef enum nss_status nss_getsgnam_r (const char *, struct sgrp *,
+                                        char *, size_t, int *);
+typedef enum nss_status nss_getspent_r (struct spwd *, char *, size_t, int *);
+typedef enum nss_status nss_getspnam_r (const char *, struct spwd *,
+                                        char *, size_t, int *);
+typedef void nss_init (void (*) (size_t, struct traced_file *));
+typedef enum nss_status nss_initgroups_dyn (const char *, __gid_t, long int *,
+                                            long int *, __gid_t **, long int,
+                                            int *);
+typedef enum nss_status nss_netname2user (char [], __uid_t *, __gid_t *,
+                                          int *, __gid_t *, int *);
+typedef enum nss_status nss_setaliasent (void);
+typedef enum nss_status nss_setetherent (int);
+typedef enum nss_status nss_setgrent (int);
+typedef enum nss_status nss_sethostent (int);
+typedef enum nss_status nss_setnetent (int);
+typedef enum nss_status nss_setnetgrent (const char *, struct __netgrent *);
+typedef enum nss_status nss_setprotoent (int);
+typedef enum nss_status nss_setpwent (int);
+typedef enum nss_status nss_setrpcent (int);
+typedef enum nss_status nss_setservent (int);
+typedef enum nss_status nss_setsgent (int);
+typedef enum nss_status nss_setspent (int);
+
+/* Declare all NSS functions for MODULE.  */
+#define NSS_DECLARE_MODULE_FUNCTIONS(module)                            \
+  extern nss_endaliasent _nss_##module##_endaliasent;                    \
+  extern nss_endetherent _nss_##module##_endetherent;                    \
+  extern nss_endgrent _nss_##module##_endgrent;                          \
+  extern nss_endhostent _nss_##module##_endhostent;                      \
+  extern nss_endnetent _nss_##module##_endnetent;                        \
+  extern nss_endnetgrent _nss_##module##__endnetgrent;                   \
+  extern nss_endprotoent _nss_##module##_endprotoent;                    \
+  extern nss_endpwent _nss_##module##_endpwent;                          \
+  extern nss_endrpcent _nss_##module##_endrpcent;                        \
+  extern nss_endservent _nss_##module##_endservent;                      \
+  extern nss_endsgent _nss_##module##_endsgent;                          \
+  extern nss_endspent _nss_##module##_endspent;                          \
+  extern nss_getaliasbyname_r _nss_##module##_getaliasbyname_r;          \
+  extern nss_getaliasent_r _nss_##module##_getaliasent_r;                \
+  extern nss_getcanonname_r _nss_##module##_getcanonname_r;              \
+  extern nss_getetherent_r _nss_##module##_getetherent_r;                \
+  extern nss_getgrent_r _nss_##module##_getgrent_r;                      \
+  extern nss_getgrgid_r _nss_##module##_getgrgid_r;                      \
+  extern nss_getgrnam_r _nss_##module##_getgrnam_r;                      \
+  extern nss_gethostbyaddr2_r _nss_##module##_gethostbyaddr2_r;          \
+  extern nss_gethostbyaddr_r _nss_##module##_gethostbyaddr_r;            \
+  extern nss_gethostbyname2_r _nss_##module##_gethostbyname2_r;          \
+  extern nss_gethostbyname3_r _nss_##module##_gethostbyname3_r;          \
+  extern nss_gethostbyname4_r _nss_##module##_gethostbyname4_r;          \
+  extern nss_gethostbyname_r _nss_##module##_gethostbyname_r;            \
+  extern nss_gethostent_r _nss_##module##_gethostent_r;                  \
+  extern nss_gethostton_r _nss_##module##_gethostton_r;                  \
+  extern nss_getnetbyaddr_r _nss_##module##_getnetbyaddr_r;              \
+  extern nss_getnetbyname_r _nss_##module##_getnetbyname_r;              \
+  extern nss_getnetent_r _nss_##module##_getnetent_r;                    \
+  extern nss_getnetgrent_r _nss_##module##_getnetgrent_r;                \
+  extern nss_getntohost_r _nss_##module##_getntohost_r;                  \
+  extern nss_getprotobyname_r _nss_##module##_getprotobyname_r;          \
+  extern nss_getprotobynumber_r _nss_##module##_getprotobynumber_r;      \
+  extern nss_getprotoent_r _nss_##module##_getprotoent_r;                \
+  extern nss_getpublickey _nss_##module##_getpublickey;                  \
+  extern nss_getpwent_r _nss_##module##_getpwent_r;                      \
+  extern nss_getpwnam_r _nss_##module##_getpwnam_r;                      \
+  extern nss_getpwuid_r _nss_##module##_getpwuid_r;                      \
+  extern nss_getrpcbyname_r _nss_##module##_getrpcbyname_r;              \
+  extern nss_getrpcbynumber_r _nss_##module##_getrpcbynumber_r;          \
+  extern nss_getrpcent_r _nss_##module##_getrpcent_r;                    \
+  extern nss_getsecretkey _nss_##module##_getsecretkey;                  \
+  extern nss_getservbyname_r _nss_##module##_getservbyname_r;            \
+  extern nss_getservbyport_r _nss_##module##_getservbyport_r;            \
+  extern nss_getservent_r _nss_##module##_getservent_r;                  \
+  extern nss_getsgent_r _nss_##module##_getsgent_r;                      \
+  extern nss_getsgnam_r _nss_##module##_getsgnam_r;                      \
+  extern nss_getspent_r _nss_##module##_getspent_r;                      \
+  extern nss_getspnam_r _nss_##module##_getspnam_r;                      \
+  extern nss_init _nss_##module##_init;                                  \
+  extern nss_initgroups_dyn _nss_##module##_initgroups_dyn;              \
+  extern nss_netname2user _nss_##module##_netname2user;                  \
+  extern nss_setaliasent _nss_##module##_setaliasent;                    \
+  extern nss_setetherent _nss_##module##_setetherent;                    \
+  extern nss_setgrent _nss_##module##_setgrent;                          \
+  extern nss_sethostent _nss_##module##_sethostent;                      \
+  extern nss_setnetent _nss_##module##_setnetent;                        \
+  extern nss_setnetgrent _nss_##module##_setnetgrent;                    \
+  extern nss_setprotoent _nss_##module##_setprotoent;                    \
+  extern nss_setpwent _nss_##module##_setpwent;                          \
+  extern nss_setrpcent _nss_##module##_setrpcent;                        \
+  extern nss_setservent _nss_##module##_setservent;                      \
+  extern nss_setsgent _nss_##module##_setsgent;                          \
+  extern nss_setspent _nss_##module##_setspent;                          \
 
 __END_DECLS
 

lib/libc/include/generic-glibc/printf.h

@@ -182,7 +182,8 @@ extern int printf_size_info (const struct printf_info *__restrict
 			     __info, size_t __n, int *__restrict __argtypes)
      __THROW;
 
-#ifdef __LDBL_COMPAT
+#include <bits/floatn.h>
+#if defined __LDBL_COMPAT || __LDOUBLE_REDIRECTS_TO_FLOAT128_ABI == 1
 # include <bits/printf-ldbl.h>
 #endif
 

lib/libc/include/generic-glibc/pthread.h

@@ -27,6 +27,7 @@
 #include <bits/setjmp.h>
 #include <bits/wordsize.h>
 #include <bits/types/struct_timespec.h>
+#include <bits/types/__sigset_t.h>
 
 
 /* Detach state.  */
@@ -385,6 +386,20 @@ extern int pthread_attr_getaffinity_np (const pthread_attr_t *__attr,
 extern int pthread_getattr_default_np (pthread_attr_t *__attr)
      __THROW __nonnull ((1));
 
+/* Store *SIGMASK as the signal mask for the new thread in *ATTR.  */
+extern int pthread_attr_setsigmask_np (pthread_attr_t *__attr,
+				       const __sigset_t *sigmask);
+
+/* Store the signal mask of *ATTR in *SIGMASK.  If there is no signal
+   mask stored, return PTHREAD_ATTR_NOSIGMASK_NP.  Return zero on
+   success.  */
+extern int pthread_attr_getsigmask_np (const pthread_attr_t *__attr,
+				       __sigset_t *sigmask);
+
+/* Special return value from pthread_attr_getsigmask_np if the signal
+   mask has not been set.  */
+#define PTHREAD_ATTR_NO_SIGMASK_NP (-1)
+
 /* Set the default attributes to be used by pthread_create in this
    process.  */
 extern int pthread_setattr_default_np (const pthread_attr_t *__attr)

lib/libc/include/generic-glibc/signal.h

@@ -27,7 +27,7 @@
 __BEGIN_DECLS
 
 #include <bits/types.h>
-#include <bits/signum.h>
+#include <bits/signum-generic.h>
 
 #include <bits/types/sig_atomic_t.h>
 
@@ -148,7 +148,8 @@ extern void psiginfo (const siginfo_t *__pinfo, const char *__s);
 
 #ifdef __USE_XOPEN_EXTENDED
 # ifdef __GNUC__
-extern int sigpause (int __sig) __asm__ ("__xpg_sigpause");
+extern int sigpause (int __sig) __asm__ ("__xpg_sigpause")
+  __attribute_deprecated_msg__ ("Use the sigsuspend function instead");
 # else
 extern int __sigpause (int __sig_or_mask, int __is_sig);
 /* Remove a signal from the signal mask and suspend the process.  */
@@ -164,7 +165,9 @@ extern int __sigpause (int __sig_or_mask, int __is_sig);
    simply do not work in many situations.  Use `sigprocmask' instead.  */
 
 /* Compute mask for signal SIG.  */
-# define sigmask(sig) ((int)(1u << ((sig) - 1)))
+# define sigmask(sig) \
+  __glibc_macro_warning ("sigmask is deprecated") \
+  ((int)(1u << ((sig) - 1)))
 
 /* Block signals in MASK, returning the old mask.  */
 extern int sigblock (int __mask) __THROW __attribute_deprecated__;
@@ -281,12 +284,6 @@ extern int sigqueue (__pid_t __pid, int __sig, const union sigval __val)
 
 #ifdef __USE_MISC
 
-/* Names of the signals.  This variable exists only for compatibility.
-   Use `strsignal' instead (see <string.h>).  */
-extern const char *const _sys_siglist[_NSIG];
-extern const char *const sys_siglist[_NSIG];
-
-
 /* Get machine-dependent `struct sigcontext' and signal subcodes.  */
 # include <bits/sigcontext.h>
 
@@ -311,7 +308,8 @@ extern int sigreturn (struct sigcontext *__scp) __THROW;
 /* If INTERRUPT is nonzero, make signal SIG interrupt system calls
    (causing them to fail with EINTR); if INTERRUPT is zero, make system
    calls be restarted after signal SIG.  */
-extern int siginterrupt (int __sig, int __interrupt) __THROW;
+extern int siginterrupt (int __sig, int __interrupt) __THROW
+  __attribute_deprecated_msg__ ("Use sigaction with SA_RESTART instead");
 
 # include <bits/sigstack.h>
 # include <bits/ss_flags.h>
@@ -340,16 +338,21 @@ extern int sigstack (struct sigstack *__ss, struct sigstack *__oss)
 /* Simplified interface for signal management.  */
 
 /* Add SIG to the calling process' signal mask.  */
-extern int sighold (int __sig) __THROW;
+extern int sighold (int __sig) __THROW
+  __attribute_deprecated_msg__ ("Use the sigprocmask function instead");
 
 /* Remove SIG from the calling process' signal mask.  */
-extern int sigrelse (int __sig) __THROW;
+extern int sigrelse (int __sig) __THROW
+  __attribute_deprecated_msg__ ("Use the sigprocmask function instead");
 
 /* Set the disposition of SIG to SIG_IGN.  */
-extern int sigignore (int __sig) __THROW;
+extern int sigignore (int __sig) __THROW
+  __attribute_deprecated_msg__ ("Use the signal function instead");
 
 /* Set the disposition of SIG.  */
-extern __sighandler_t sigset (int __sig, __sighandler_t __disp) __THROW;
+extern __sighandler_t sigset (int __sig, __sighandler_t __disp) __THROW
+  __attribute_deprecated_msg__
+    ("Use the signal and sigprocmask functions instead");
 #endif
 
 #if defined __USE_POSIX199506 || defined __USE_UNIX98

lib/libc/include/generic-glibc/stdio.h

@@ -400,9 +400,12 @@ extern int sscanf (const char *__restrict __s,
 		   const char *__restrict __format, ...) __THROW;
 
 /* For historical reasons, the C99-compliant versions of the scanf
-   functions are at alternative names.  When __LDBL_COMPAT is in
+   functions are at alternative names.  When __LDBL_COMPAT or
-   effect, this is handled in bits/stdio-ldbl.h.  */
+   __LDOUBLE_REDIRECTS_TO_FLOAT128_ABI are in effect, this is handled in
-#if !__GLIBC_USE (DEPRECATED_SCANF) && !defined __LDBL_COMPAT
+   bits/stdio-ldbl.h.  */
+#include <bits/floatn.h>
+#if !__GLIBC_USE (DEPRECATED_SCANF) && !defined __LDBL_COMPAT \
+    && __LDOUBLE_REDIRECTS_TO_FLOAT128_ABI == 0
 # ifdef __REDIRECT
 extern int __REDIRECT (fscanf, (FILE *__restrict __stream,
 				const char *__restrict __format, ...),
@@ -447,7 +450,8 @@ extern int vsscanf (const char *__restrict __s,
 
 /* Same redirection as above for the v*scanf family.  */
 # if !__GLIBC_USE (DEPRECATED_SCANF)
-#  if defined __REDIRECT && !defined __LDBL_COMPAT
+#  if defined __REDIRECT && !defined __LDBL_COMPAT \
+      && __LDOUBLE_REDIRECTS_TO_FLOAT128_ABI == 0
 extern int __REDIRECT (vfscanf,
 		       (FILE *__restrict __s,
 			const char *__restrict __format, __gnuc_va_list __arg),
@@ -562,7 +566,7 @@ extern int putw (int __w, FILE *__stream);
    This function is a possible cancellation point and therefore not
    marked with __THROW.  */
 extern char *fgets (char *__restrict __s, int __n, FILE *__restrict __stream)
-     __wur;
+     __wur __attr_access ((__write_only__, 1, 2));
 
 #if __GLIBC_USE (DEPRECATED_GETS)
 /* Get a newline-terminated string from stdin, removing the newline.
@@ -585,7 +589,8 @@ extern char *gets (char *__s) __wur __attribute_deprecated__;
    or due to the implementation it is a cancellation point and
    therefore not marked with __THROW.  */
 extern char *fgets_unlocked (char *__restrict __s, int __n,
-			     FILE *__restrict __stream) __wur;
+			     FILE *__restrict __stream) __wur
+    __attr_access ((__write_only__, 1, 2));
 #endif
 
 
@@ -774,12 +779,6 @@ extern int ferror_unlocked (FILE *__stream) __THROW __wur;
    marked with __THROW.  */
 extern void perror (const char *__s);
 
-/* Provide the declarations for `sys_errlist' and `sys_nerr' if they
-   are available on this system.  Even if available, these variables
-   should not be used directly.  The `strerror' function provides
-   all the necessary functionality.  */
-#include <bits/sys_errlist.h>
-
 
 #ifdef	__USE_POSIX
 /* Return the system file descriptor for STREAM.  */
@@ -866,7 +865,9 @@ extern int __overflow (FILE *, int);
 #if __USE_FORTIFY_LEVEL > 0 && defined __fortify_function
 # include <bits/stdio2.h>
 #endif
-#ifdef __LDBL_COMPAT
+
+#include <bits/floatn.h>
+#if defined __LDBL_COMPAT || __LDOUBLE_REDIRECTS_TO_FLOAT128_ABI == 1
 # include <bits/stdio-ldbl.h>
 #endif
 

lib/libc/include/generic-glibc/stdlib.h

@@ -397,7 +397,7 @@ extern long int a64l (const char *__s)
    `initstate' and `setstate' functions are those from BSD Unices.
    The `rand' and `srand' functions are required by the ANSI standard.
    We provide both interfaces to the same random number generator.  */
-/* Return a random long integer between 0 and RAND_MAX inclusive.  */
+/* Return a random long integer between 0 and 2^31-1 inclusive.  */
 extern long int random (void) __THROW;
 
 /* Seed the random number generator with the given number.  */
@@ -931,12 +931,13 @@ extern int wctomb (char *__s, wchar_t __wchar) __THROW;
 
 /* Convert a multibyte string to a wide char string.  */
 extern size_t mbstowcs (wchar_t *__restrict  __pwcs,
-			const char *__restrict __s, size_t __n) __THROW;
+			const char *__restrict __s, size_t __n) __THROW
+    __attr_access ((__read_only__, 2));
 /* Convert a wide char string to multibyte string.  */
 extern size_t wcstombs (char *__restrict __s,
 			const wchar_t *__restrict __pwcs, size_t __n)
-     __THROW;
+     __THROW
-
+  __attr_access ((__write_only__, 1, 3)) __attr_access ((__read_only__, 2));
 
 #ifdef __USE_MISC
 /* Determine whether the string value of RESPONSE matches the affirmation
@@ -990,7 +991,7 @@ extern char *ptsname (int __fd) __THROW __wur;
    terminal associated with the master FD is open on in BUF.
    Return 0 on success, otherwise an error number.  */
 extern int ptsname_r (int __fd, char *__buf, size_t __buflen)
-     __THROW __nonnull ((2));
+     __THROW __nonnull ((2)) __attr_access ((__write_only__, 2, 3));
 
 /* Open a master pseudo terminal and return its file descriptor.  */
 extern int getpt (void);
@@ -1016,7 +1017,9 @@ extern int ttyslot (void) __THROW;
 #if __USE_FORTIFY_LEVEL > 0 && defined __fortify_function
 # include <bits/stdlib.h>
 #endif
-#ifdef __LDBL_COMPAT
+
+#include <bits/floatn.h>
+#if defined __LDBL_COMPAT || __LDOUBLE_REDIRECTS_TO_FLOAT128_ABI == 1
 # include <bits/stdlib-ldbl.h>
 #endif
 

lib/libc/include/generic-glibc/string.h

@@ -53,7 +53,7 @@ extern void *memmove (void *__dest, const void *__src, size_t __n)
 #if defined __USE_MISC || defined __USE_XOPEN || __GLIBC_USE (ISOC2X)
 extern void *memccpy (void *__restrict __dest, const void *__restrict __src,
 		      int __c, size_t __n)
-     __THROW __nonnull ((1, 2));
+    __THROW __nonnull ((1, 2)) __attr_access ((__write_only__, 1, 4));
 #endif /* Misc || X/Open.  */
 
 
@@ -108,12 +108,15 @@ extern void *rawmemchr (const void *__s, int __c)
 /* Search N bytes of S for the final occurrence of C.  */
 # ifdef __CORRECT_ISO_CPP_STRING_H_PROTO
 extern "C++" void *memrchr (void *__s, int __c, size_t __n)
-      __THROW __asm ("memrchr") __attribute_pure__ __nonnull ((1));
+      __THROW __asm ("memrchr") __attribute_pure__ __nonnull ((1))
+      __attr_access ((__read_only__, 1, 3));
 extern "C++" const void *memrchr (const void *__s, int __c, size_t __n)
-      __THROW __asm ("memrchr") __attribute_pure__ __nonnull ((1));
+      __THROW __asm ("memrchr") __attribute_pure__ __nonnull ((1))
+      __attr_access ((__read_only__, 1, 3));
 # else
 extern void *memrchr (const void *__s, int __c, size_t __n)
-      __THROW __attribute_pure__ __nonnull ((1));
+      __THROW __attribute_pure__ __nonnull ((1))
+      __attr_access ((__read_only__, 1, 3));
 # endif
 #endif
 
@@ -146,7 +149,7 @@ extern int strcoll (const char *__s1, const char *__s2)
 /* Put a transformation of SRC into no more than N bytes of DEST.  */
 extern size_t strxfrm (char *__restrict __dest,
 		       const char *__restrict __src, size_t __n)
-     __THROW __nonnull ((2));
+    __THROW __nonnull ((2)) __attr_access ((__write_only__, 1, 3));
 
 #ifdef __USE_XOPEN2K8
 /* POSIX.1-2008 extended locale interface (see locale.h).  */
@@ -158,7 +161,8 @@ extern int strcoll_l (const char *__s1, const char *__s2, locale_t __l)
 /* Put a transformation of SRC into no more than N bytes of DEST,
    using sorting rules from L.  */
 extern size_t strxfrm_l (char *__dest, const char *__src, size_t __n,
-			 locale_t __l) __THROW __nonnull ((2, 4));
+			 locale_t __l) __THROW __nonnull ((2, 4))
+     __attr_access ((__write_only__, 1, 3));
 #endif
 
 #if (defined __USE_XOPEN_EXTENDED || defined __USE_XOPEN2K8	\
@@ -368,7 +372,9 @@ extern char *strcasestr (const char *__haystack, const char *__needle)
    HAYSTACK is HAYSTACKLEN bytes long.  */
 extern void *memmem (const void *__haystack, size_t __haystacklen,
 		     const void *__needle, size_t __needlelen)
-     __THROW __attribute_pure__ __nonnull ((1, 3));
+     __THROW __attribute_pure__ __nonnull ((1, 3))
+    __attr_access ((__read_only__, 1, 2))
+    __attr_access ((__read_only__, 3, 4));
 
 /* Copy N bytes of SRC to DEST, return pointer to bytes after the
    last written byte.  */
@@ -409,17 +415,25 @@ extern char *strerror (int __errnum) __THROW;
 #  ifdef __REDIRECT_NTH
 extern int __REDIRECT_NTH (strerror_r,
 			   (int __errnum, char *__buf, size_t __buflen),
-			   __xpg_strerror_r) __nonnull ((2));
+			   __xpg_strerror_r) __nonnull ((2))
+    __attr_access ((__write_only__, 2, 3));
 #  else
 extern int __xpg_strerror_r (int __errnum, char *__buf, size_t __buflen)
-     __THROW __nonnull ((2));
+     __THROW __nonnull ((2)) __attr_access ((__write_only__, 2, 3));
 #   define strerror_r __xpg_strerror_r
 #  endif
 # else
 /* If a temporary buffer is required, at most BUFLEN bytes of BUF will be
    used.  */
 extern char *strerror_r (int __errnum, char *__buf, size_t __buflen)
-     __THROW __nonnull ((2)) __wur;
+     __THROW __nonnull ((2)) __wur  __attr_access ((__write_only__, 2, 3));
+# endif
+
+# ifdef __USE_GNU
+/* Return a string describing the meaning of tthe error in ERR.  */
+extern const char *strerrordesc_np (int __err) __THROW;
+/* Return a string with the error name in ERR.  */
+extern const char *strerrorname_np (int __err) __THROW;
 # endif
 #endif
 
@@ -433,7 +447,8 @@ extern char *strerror_l (int __errnum, locale_t __l) __THROW;
 
 /* Set N bytes of S to 0.  The compiler will not delete a call to this
    function, even if S is dead after the call.  */
-extern void explicit_bzero (void *__s, size_t __n) __THROW __nonnull ((1));
+extern void explicit_bzero (void *__s, size_t __n) __THROW __nonnull ((1))
+    __attr_access ((__write_only__, 1, 2));
 
 /* Return the next DELIM-delimited token from *STRINGP,
    terminating it with a '\0', and update *STRINGP to point past it.  */
@@ -446,6 +461,14 @@ extern char *strsep (char **__restrict __stringp,
 /* Return a string describing the meaning of the signal number in SIG.  */
 extern char *strsignal (int __sig) __THROW;
 
+# ifdef __USE_GNU
+/* Return an abbreviation string for the signal number SIG.  */
+extern const char *sigabbrev_np (int __sig) __THROW;
+/* Return a string describing the meaning of the signal number in SIG,
+   the result is not translated.  */
+extern const char *sigdescr_np (int __sig) __THROW;
+# endif
+
 /* Copy SRC to DEST, returning the address of the terminating '\0' in DEST.  */
 extern char *__stpcpy (char *__restrict __dest, const char *__restrict __src)
      __THROW __nonnull ((1, 2));
@@ -471,7 +494,8 @@ extern int strverscmp (const char *__s1, const char *__s2)
 extern char *strfry (char *__string) __THROW __nonnull ((1));
 
 /* Frobnicate N bytes of S.  */
-extern void *memfrob (void *__s, size_t __n) __THROW __nonnull ((1));
+extern void *memfrob (void *__s, size_t __n) __THROW __nonnull ((1))
+    __attr_access ((__write_only__, 1, 2));
 
 # ifndef basename
 /* Return the file name within directory of FILENAME.  We don't

lib/libc/include/generic-glibc/sys/cdefs.h

@@ -452,7 +452,37 @@
 #include <bits/wordsize.h>
 #include <bits/long-double.h>
 
-#if defined __LONG_DOUBLE_MATH_OPTIONAL && defined __NO_LONG_DOUBLE_MATH
+#if __LDOUBLE_REDIRECTS_TO_FLOAT128_ABI == 1
+# ifdef __REDIRECT
+
+/* Alias name defined automatically.  */
+#  define __LDBL_REDIR(name, proto) ... unused__ldbl_redir
+#  define __LDBL_REDIR_DECL(name) \
+  extern __typeof (name) name __asm (__ASMNAME ("__" #name "ieee128"));
+
+/* Alias name defined automatically, with leading underscores.  */
+#  define __LDBL_REDIR2_DECL(name) \
+  extern __typeof (__##name) __##name \
+    __asm (__ASMNAME ("__" #name "ieee128"));
+
+/* Alias name defined manually.  */
+#  define __LDBL_REDIR1(name, proto, alias) ... unused__ldbl_redir1
+#  define __LDBL_REDIR1_DECL(name, alias) \
+  extern __typeof (name) name __asm (__ASMNAME (#alias));
+
+#  define __LDBL_REDIR1_NTH(name, proto, alias) \
+  __REDIRECT_NTH (name, proto, alias)
+#  define __REDIRECT_NTH_LDBL(name, proto, alias) \
+  __LDBL_REDIR1_NTH (name, proto, __##alias##ieee128)
+
+/* Unused.  */
+#  define __REDIRECT_LDBL(name, proto, alias) ... unused__redirect_ldbl
+#  define __LDBL_REDIR_NTH(name, proto) ... unused__ldbl_redir_nth
+
+# else
+_Static_assert (0, "IEEE 128-bits long double requires redirection on this platform");
+# endif
+#elif defined __LONG_DOUBLE_MATH_OPTIONAL && defined __NO_LONG_DOUBLE_MATH
 # define __LDBL_COMPAT 1
 # ifdef __REDIRECT
 #  define __LDBL_REDIR1(name, proto, alias) __REDIRECT (name, proto, alias)
@@ -461,6 +491,8 @@
 #  define __LDBL_REDIR1_NTH(name, proto, alias) __REDIRECT_NTH (name, proto, alias)
 #  define __LDBL_REDIR_NTH(name, proto) \
   __LDBL_REDIR1_NTH (name, proto, __nldbl_##name)
+#  define __LDBL_REDIR2_DECL(name) \
+  extern __typeof (__##name) __##name __asm (__ASMNAME ("__nldbl___" #name));
 #  define __LDBL_REDIR1_DECL(name, alias) \
   extern __typeof (name) name __asm (__ASMNAME (#alias));
 #  define __LDBL_REDIR_DECL(name) \
@@ -471,11 +503,13 @@
   __LDBL_REDIR1_NTH (name, proto, __nldbl_##alias)
 # endif
 #endif
-#if !defined __LDBL_COMPAT || !defined __REDIRECT
+#if (!defined __LDBL_COMPAT && __LDOUBLE_REDIRECTS_TO_FLOAT128_ABI == 0) \
+    || !defined __REDIRECT
 # define __LDBL_REDIR1(name, proto, alias) name proto
 # define __LDBL_REDIR(name, proto) name proto
 # define __LDBL_REDIR1_NTH(name, proto, alias) name proto __THROW
 # define __LDBL_REDIR_NTH(name, proto) name proto __THROW
+# define __LDBL_REDIR2_DECL(name)
 # define __LDBL_REDIR_DECL(name)
 # ifdef __REDIRECT
 #  define __REDIRECT_LDBL(name, proto, alias) __REDIRECT (name, proto, alias)
@@ -514,4 +548,15 @@
 # define __HAVE_GENERIC_SELECTION 0
 #endif
 
+#if __GNUC_PREREQ (10, 0)
+/* Designates a 1-based positional argument ref-index of pointer type
+   that can be used to access size-index elements of the pointed-to
+   array according to access mode, or at least one element when
+   size-index is not provided:
+     access (access-mode, <ref-index> [, <size-index>])  */
+#define __attr_access(x) __attribute__ ((__access__ x))
+#else
+#  define __attr_access(x)
+#endif
+
 #endif	 /* sys/cdefs.h */

lib/libc/include/generic-glibc/sys/random.h

@@ -25,6 +25,7 @@
 /* Flags for use with getrandom.  */
 #define GRND_NONBLOCK 0x01
 #define GRND_RANDOM 0x02
+#define GRND_INSECURE 0x04
 
 __BEGIN_DECLS
 

lib/libc/include/generic-glibc/sys/single_threaded.h

@@ -1,5 +1,5 @@
-/* Define where padding goes in struct msqid_ds.  SPARC version.
+/* Support for single-thread optimizations.
-   Copyright (C) 2018-2020 Free Software Foundation, Inc.
+   Copyright (C) 2020 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -16,11 +16,18 @@
    License along with the GNU C Library; if not, see
    <https://www.gnu.org/licenses/>.  */
 
-#ifndef _SYS_MSG_H
+#ifndef _SYS_SINGLE_THREADED_H
-# error "Never use <bits/msq-pad.h> directly; include <sys/msg.h> instead."
+#define _SYS_SINGLE_THREADED_H
-#endif
 
-#include <bits/timesize.h>
+#include <features.h>
 
-#define __MSQ_PAD_AFTER_TIME 0
+__BEGIN_DECLS
-#define __MSQ_PAD_BEFORE_TIME (__TIMESIZE == 32)
+
+/* If this variable is non-zero, then the current thread is the only
+   thread in the process image.  If it is zero, the process might be
+   multi-threaded.  */
+extern char __libc_single_threaded;
+
+__END_DECLS
+
+#endif /* _SYS_SINGLE_THREADED_H */

lib/libc/include/generic-glibc/sys/sysctl.h

@@ -1,76 +0,0 @@
-/* Copyright (C) 1996-2020 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library; if not, see
-   <https://www.gnu.org/licenses/>.  */
-
-#ifndef	_SYS_SYSCTL_H
-#define	_SYS_SYSCTL_H	1
-
-#warning "The <sys/sysctl.h> header is deprecated and will be removed."
-
-#include <features.h>
-#define __need_size_t
-#include <stddef.h>
-/* Prevent more kernel headers than necessary to be included.  */
-#ifndef _LINUX_KERNEL_H
-# define _LINUX_KERNEL_H	1
-# define __undef_LINUX_KERNEL_H
-#endif
-#ifndef _LINUX_TYPES_H
-# define _LINUX_TYPES_H		1
-# define __undef_LINUX_TYPES_H
-#endif
-#ifndef _LINUX_LIST_H
-# define _LINUX_LIST_H		1
-# define __undef_LINUX_LIST_H
-#endif
-#ifndef __LINUX_COMPILER_H
-# define __LINUX_COMPILER_H	1
-# define __user
-# define __undef__LINUX_COMPILER_H
-#endif
-
-#include <linux/sysctl.h>
-
-#ifdef __undef_LINUX_KERNEL_H
-# undef _LINUX_KERNEL_H
-# undef __undef_LINUX_KERNEL_H
-#endif
-#ifdef __undef_LINUX_TYPES_H
-# undef _LINUX_TYPES_H
-# undef __undef_LINUX_TYPES_H
-#endif
-#ifdef __undef_LINUX_LIST_H
-# undef _LINUX_LIST_H
-# undef __undef_LINUX_LIST_H
-#endif
-#ifdef __undef__LINUX_COMPILER_H
-# undef __LINUX_COMPILER_H
-# undef __user
-# undef __undef__LINUX_COMPILER_H
-#endif
-
-#include <bits/sysctl.h>
-
-__BEGIN_DECLS
-
-/* Read or write system parameters.  */
-extern int sysctl (int *__name, int __nlen, void *__oldval,
-		   size_t *__oldlenp, void *__newval, size_t __newlen) __THROW
-  __attribute_deprecated__;
-
-__END_DECLS
-
-#endif	/* _SYS_SYSCTL_H */

lib/libc/include/generic-glibc/sys/syslog.h

@@ -206,7 +206,9 @@ extern void vsyslog (int __pri, const char *__fmt, __gnuc_va_list __ap)
 #if __USE_FORTIFY_LEVEL > 0 && defined __fortify_function
 # include <bits/syslog.h>
 #endif
-#ifdef __LDBL_COMPAT
+
+#include <bits/floatn.h>
+#if defined __LDBL_COMPAT || __LDOUBLE_REDIRECTS_TO_FLOAT128_ABI == 1
 # include <bits/syslog-ldbl.h>
 #endif
 

lib/libc/include/generic-glibc/threads.h

@@ -24,7 +24,7 @@
 
 __BEGIN_DECLS
 
-#include <bits/pthreadtypes-arch.h>
+#include <bits/thread-shared-types.h>
 #include <bits/types/struct_timespec.h>
 
 #ifndef __cplusplus
@@ -32,10 +32,10 @@ __BEGIN_DECLS
 #endif
 
 #define TSS_DTOR_ITERATIONS 4
-typedef unsigned int tss_t;
+typedef __tss_t tss_t;
 typedef void (*tss_dtor_t) (void*);
 
-typedef unsigned long int thrd_t;
+typedef __thrd_t thrd_t;
 typedef int (*thrd_start_t) (void*);
 
 /* Exit and error codes.  */
@@ -56,11 +56,8 @@ enum
   mtx_timed     = 2
 };
 
-typedef struct
+typedef __once_flag once_flag;
-{
+#define ONCE_FLAG_INIT __ONCE_FLAG_INIT
-  int __data __ONCE_ALIGNMENT;
-} once_flag;
-#define ONCE_FLAG_INIT { 0 }
 
 typedef union
 {

lib/libc/include/generic-glibc/unistd.h

@@ -357,13 +357,15 @@ extern int close (int __fd);
 
    This function is a cancellation point and therefore not marked with
    __THROW.  */
-extern ssize_t read (int __fd, void *__buf, size_t __nbytes) __wur;
+extern ssize_t read (int __fd, void *__buf, size_t __nbytes) __wur
+    __attr_access ((__write_only__, 2, 3));
 
 /* Write N bytes of BUF to FD.  Return the number written, or -1.
 
    This function is a cancellation point and therefore not marked with
    __THROW.  */
-extern ssize_t write (int __fd, const void *__buf, size_t __n) __wur;
+extern ssize_t write (int __fd, const void *__buf, size_t __n) __wur
+    __attr_access ((__read_only__, 2, 3));
 
 #if defined __USE_UNIX98 || defined __USE_XOPEN2K8
 # ifndef __USE_FILE_OFFSET64
@@ -374,7 +376,8 @@ extern ssize_t write (int __fd, const void *__buf, size_t __n) __wur;
    This function is a cancellation point and therefore not marked with
    __THROW.  */
 extern ssize_t pread (int __fd, void *__buf, size_t __nbytes,
-		      __off_t __offset) __wur;
+		      __off_t __offset) __wur
+    __attr_access ((__write_only__, 2, 3));
 
 /* Write N bytes of BUF to FD at the given position OFFSET without
    changing the file pointer.  Return the number written, or -1.
@@ -382,15 +385,19 @@ extern ssize_t pread (int __fd, void *__buf, size_t __nbytes,
    This function is a cancellation point and therefore not marked with
    __THROW.  */
 extern ssize_t pwrite (int __fd, const void *__buf, size_t __n,
-		       __off_t __offset) __wur;
+		       __off_t __offset) __wur
+    __attr_access ((__read_only__, 2, 3));
+
 # else
 #  ifdef __REDIRECT
 extern ssize_t __REDIRECT (pread, (int __fd, void *__buf, size_t __nbytes,
 				   __off64_t __offset),
-			   pread64) __wur;
+			   pread64) __wur
+    __attr_access ((__write_only__, 2, 3));
 extern ssize_t __REDIRECT (pwrite, (int __fd, const void *__buf,
 				    size_t __nbytes, __off64_t __offset),
-			   pwrite64) __wur;
+			   pwrite64) __wur
+    __attr_access ((__read_only__, 2, 3));
 #  else
 #   define pread pread64
 #   define pwrite pwrite64
@@ -402,11 +409,13 @@ extern ssize_t __REDIRECT (pwrite, (int __fd, const void *__buf,
    changing the file pointer.  Return the number read, -1 for errors
    or 0 for EOF.  */
 extern ssize_t pread64 (int __fd, void *__buf, size_t __nbytes,
-			__off64_t __offset) __wur;
+			__off64_t __offset) __wur
+    __attr_access ((__write_only__, 2, 3));
 /* Write N bytes of BUF to FD at the given position OFFSET without
    changing the file pointer.  Return the number written, or -1.  */
 extern ssize_t pwrite64 (int __fd, const void *__buf, size_t __n,
-			 __off64_t __offset) __wur;
+			 __off64_t __offset) __wur
+    __attr_access ((__read_only__, 2, 3));
 # endif
 #endif
 
@@ -508,7 +517,8 @@ extern int fchdir (int __fd) __THROW __wur;
    an array is allocated with `malloc'; the array is SIZE
    bytes long, unless SIZE == 0, in which case it is as
    big as necessary.  */
-extern char *getcwd (char *__buf, size_t __size) __THROW __wur;
+extern char *getcwd (char *__buf, size_t __size) __THROW __wur
+    __attr_access ((__write_only__, 1, 2));
 
 #ifdef	__USE_GNU
 /* Return a malloc'd string containing the current directory name.
@@ -523,7 +533,8 @@ extern char *get_current_dir_name (void) __THROW;
    If successful, return BUF.  If not, put an error message in
    BUF and return NULL.  BUF should be at least PATH_MAX bytes long.  */
 extern char *getwd (char *__buf)
-     __THROW __nonnull ((1)) __attribute_deprecated__ __wur;
+     __THROW __nonnull ((1)) __attribute_deprecated__ __wur
+    __attr_access ((__write_only__, 1));
 #endif
 
 
@@ -620,7 +631,8 @@ extern long int sysconf (int __name) __THROW;
 
 #ifdef	__USE_POSIX2
 /* Get the value of the string-valued system variable NAME.  */
-extern size_t confstr (int __name, char *__buf, size_t __len) __THROW;
+extern size_t confstr (int __name, char *__buf, size_t __len) __THROW
+    __attr_access ((__write_only__, 2, 3));
 #endif
 
 
@@ -686,8 +698,8 @@ extern __gid_t getegid (void) __THROW;
 /* If SIZE is zero, return the number of supplementary groups
    the calling process is in.  Otherwise, fill in the group IDs
    of its supplementary groups in LIST and return the number written.  */
-extern int getgroups (int __size, __gid_t __list[]) __THROW __wur;
+extern int getgroups (int __size, __gid_t __list[]) __THROW __wur
-
+    __attr_access ((__write_only__, 2, 1));
 #ifdef	__USE_GNU
 /* Return nonzero iff the calling process is in group GID.  */
 extern int group_member (__gid_t __gid) __THROW;
@@ -772,7 +784,7 @@ extern char *ttyname (int __fd) __THROW;
 /* Store at most BUFLEN characters of the pathname of the terminal FD is
    open on in BUF.  Return 0 on success, otherwise an error number.  */
 extern int ttyname_r (int __fd, char *__buf, size_t __buflen)
-     __THROW __nonnull ((2)) __wur;
+     __THROW __nonnull ((2)) __wur __attr_access ((__write_only__, 2, 3));
 
 /* Return 1 if FD is a valid descriptor associated
    with a terminal, zero if not.  */
@@ -807,7 +819,8 @@ extern int symlink (const char *__from, const char *__to)
    Returns the number of characters read, or -1 for errors.  */
 extern ssize_t readlink (const char *__restrict __path,
 			 char *__restrict __buf, size_t __len)
-     __THROW __nonnull ((1, 2)) __wur;
+     __THROW __nonnull ((1, 2)) __wur __attr_access ((__write_only__, 2, 3));
+
 #endif /* Use POSIX.1-2001.  */
 
 #ifdef __USE_ATFILE
@@ -818,7 +831,7 @@ extern int symlinkat (const char *__from, int __tofd,
 /* Like readlink but a relative PATH is interpreted relative to FD.  */
 extern ssize_t readlinkat (int __fd, const char *__restrict __path,
 			   char *__restrict __buf, size_t __len)
-     __THROW __nonnull ((2, 3)) __wur;
+     __THROW __nonnull ((2, 3)) __wur __attr_access ((__read_only__, 3, 4));
 #endif
 
 /* Remove the link NAME.  */
@@ -853,7 +866,8 @@ extern char *getlogin (void);
 
    This function is a possible cancellation point and therefore not
    marked with __THROW.  */
-extern int getlogin_r (char *__name, size_t __name_len) __nonnull ((1));
+extern int getlogin_r (char *__name, size_t __name_len) __nonnull ((1))
+    __attr_access ((__write_only__, 1, 2));
 #endif
 
 #ifdef	__USE_MISC
@@ -874,7 +888,8 @@ extern int setlogin (const char *__name) __THROW __nonnull ((1));
 /* Put the name of the current host in no more than LEN bytes of NAME.
    The result is null-terminated if LEN is large enough for the full
    name and the terminator.  */
-extern int gethostname (char *__name, size_t __len) __THROW __nonnull ((1));
+extern int gethostname (char *__name, size_t __len) __THROW __nonnull ((1))
+    __attr_access ((__write_only__, 1, 2));
 #endif
 
 
@@ -882,7 +897,7 @@ extern int gethostname (char *__name, size_t __len) __THROW __nonnull ((1));
 /* Set the name of the current host to NAME, which is LEN bytes long.
    This call is restricted to the super-user.  */
 extern int sethostname (const char *__name, size_t __len)
-     __THROW __nonnull ((1)) __wur;
+     __THROW __nonnull ((1)) __wur __attr_access ((__read_only__, 1, 2));
 
 /* Set the current machine's Internet number to ID.
    This call is restricted to the super-user.  */
@@ -893,10 +908,9 @@ extern int sethostid (long int __id) __THROW __wur;
    Called just like `gethostname' and `sethostname'.
    The NIS domain name is usually the empty string when not using NIS.  */
 extern int getdomainname (char *__name, size_t __len)
-     __THROW __nonnull ((1)) __wur;
+     __THROW __nonnull ((1)) __wur __attr_access ((__write_only__, 1, 2));
 extern int setdomainname (const char *__name, size_t __len)
-     __THROW __nonnull ((1)) __wur;
+     __THROW __nonnull ((1)) __wur __attr_access ((__read_only__, 1, 2));
-
 
 /* Revoke access permissions to all processes currently communicating
    with the control terminal, and then send a SIGHUP signal to the process
@@ -1131,7 +1145,9 @@ extern char *crypt (const char *__key, const char *__salt)
    range [FROM - N + 1, FROM - 1].  If N is odd the first byte in FROM
    is without partner.  */
 extern void swab (const void *__restrict __from, void *__restrict __to,
-		  ssize_t __n) __THROW __nonnull ((1, 2));
+		  ssize_t __n) __THROW __nonnull ((1, 2))
+    __attr_access ((__read_only__, 1, 3))
+    __attr_access ((__write_only__, 2, 3));
 #endif
 
 
@@ -1158,7 +1174,8 @@ extern int pthread_atfork (void (*__prepare) (void),
 #ifdef __USE_MISC
 /* Write LENGTH bytes of randomness starting at BUFFER.  Return 0 on
    success or -1 on error.  */
-int getentropy (void *__buffer, size_t __length) __wur;
+int getentropy (void *__buffer, size_t __length) __wur
+    __attr_access ((__write_only__, 1, 2));
 #endif
 
 /* Define some macros helping to catch buffer overflows.  */

lib/libc/include/generic-glibc/wchar.h

@@ -633,9 +633,11 @@ extern int swscanf (const wchar_t *__restrict __s,
      __THROW /* __attribute__ ((__format__ (__wscanf__, 2, 3))) */;
 
 /* For historical reasons, the C99-compliant versions of the scanf
-   functions are at alternative names.  When __LDBL_COMPAT is in
+   functions are at alternative names.  When __LDBL_COMPAT or
-   effect, this is handled in bits/wchar-ldbl.h.  */
+   __LDOUBLE_REDIRECTS_TO_FLOAT128_ABI are in effect, this is handled in
-#if !__GLIBC_USE (DEPRECATED_SCANF) && !defined __LDBL_COMPAT
+   bits/wchar-ldbl.h.  */
+#if !__GLIBC_USE (DEPRECATED_SCANF) && !defined __LDBL_COMPAT \
+     && __LDOUBLE_REDIRECTS_TO_FLOAT128_ABI == 0
 #  ifdef __REDIRECT
 extern int __REDIRECT (fwscanf, (__FILE *__restrict __stream,
 				 const wchar_t *__restrict __format, ...),
@@ -688,7 +690,8 @@ extern int vswscanf (const wchar_t *__restrict __s,
 /* Same redirection as above for the v*wscanf family.  */
 # if !__GLIBC_USE (DEPRECATED_SCANF) \
      && (!defined __LDBL_COMPAT || !defined __REDIRECT) \
-     && (defined __STRICT_ANSI__ || defined __USE_XOPEN2K)
+     && (defined __STRICT_ANSI__ || defined __USE_XOPEN2K) \
+     && __LDOUBLE_REDIRECTS_TO_FLOAT128_ABI == 0
 #  ifdef __REDIRECT
 extern int __REDIRECT (vfwscanf, (__FILE *__restrict __s,
 				  const wchar_t *__restrict __format,
@@ -849,7 +852,8 @@ extern size_t wcsftime_l (wchar_t *__restrict __s, size_t __maxsize,
 # include <bits/wchar2.h>
 #endif
 
-#ifdef __LDBL_COMPAT
+#include <bits/floatn.h>
+#if defined __LDBL_COMPAT || __LDOUBLE_REDIRECTS_TO_FLOAT128_ABI == 1
 # include <bits/wchar-ldbl.h>
 #endif
 

lib/libc/include/i386-linux-gnu/bits/fenv.h

@@ -114,57 +114,3 @@ femode_t;
 /* Default floating-point control modes.  */
 # define FE_DFL_MODE	((const femode_t *) -1L)
 #endif
-
-
-#ifdef __USE_EXTERN_INLINES
-__BEGIN_DECLS
-
-/* Optimized versions.  */
-#ifndef _LIBC
-extern int __REDIRECT_NTH (__feraiseexcept_renamed, (int), feraiseexcept);
-#endif
-__extern_always_inline void
-__NTH (__feraiseexcept_invalid_divbyzero (int __excepts))
-{
-  if ((FE_INVALID & __excepts) != 0)
-    {
-      /* One example of an invalid operation is 0.0 / 0.0.  */
-      float __f = 0.0;
-
-# ifdef __SSE_MATH__
-      __asm__ __volatile__ ("divss %0, %0 " : : "x" (__f));
-# else
-      __asm__ __volatile__ ("fdiv %%st, %%st(0); fwait"
-			    : "=t" (__f) : "0" (__f));
-# endif
-      (void) &__f;
-    }
-  if ((FE_DIVBYZERO & __excepts) != 0)
-    {
-      float __f = 1.0;
-      float __g = 0.0;
-
-# ifdef __SSE_MATH__
-      __asm__ __volatile__ ("divss %1, %0" : : "x" (__f), "x" (__g));
-# else
-      __asm__ __volatile__ ("fdivp %%st, %%st(1); fwait"
-			    : "=t" (__f) : "0" (__f), "u" (__g) : "st(1)");
-# endif
-      (void) &__f;
-    }
-}
-__extern_inline int
-__NTH (feraiseexcept (int __excepts))
-{
-  if (__builtin_constant_p (__excepts)
-      && (__excepts & ~(FE_INVALID | FE_DIVBYZERO)) == 0)
-    {
-      __feraiseexcept_invalid_divbyzero (__excepts);
-      return 0;
-    }
-
-  return __feraiseexcept_renamed (__excepts);
-}
-
-__END_DECLS
-#endif

lib/libc/include/i386-linux-gnu/bits/long-double.h

@@ -18,4 +18,4 @@
 
 /* long double is distinct from double, so there is nothing to
    define here.  */
-#define __LONG_DOUBLE_USES_FLOAT128 0
+#define __LDOUBLE_REDIRECTS_TO_FLOAT128_ABI 0

lib/libc/include/i386-linux-gnu/bits/select.h

@@ -1,63 +0,0 @@
-/* Copyright (C) 1997-2020 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library; if not, see
-   <https://www.gnu.org/licenses/>.  */
-
-#ifndef _SYS_SELECT_H
-# error "Never use <bits/select.h> directly; include <sys/select.h> instead."
-#endif
-
-#include <bits/wordsize.h>
-
-
-#if defined __GNUC__ && __GNUC__ >= 2
-
-# if __WORDSIZE == 64
-#  define __FD_ZERO_STOS "stosq"
-# else
-#  define __FD_ZERO_STOS "stosl"
-# endif
-
-# define __FD_ZERO(fdsp) \
-  do {									      \
-    int __d0, __d1;							      \
-    __asm__ __volatile__ ("cld; rep; " __FD_ZERO_STOS			      \
-			  : "=c" (__d0), "=D" (__d1)			      \
-			  : "a" (0), "0" (sizeof (fd_set)		      \
-					  / sizeof (__fd_mask)),	      \
-			    "1" (&__FDS_BITS (fdsp)[0])			      \
-			  : "memory");					      \
-  } while (0)
-
-#else	/* ! GNU CC */
-
-/* We don't use `memset' because this would require a prototype and
-   the array isn't too big.  */
-# define __FD_ZERO(set)  \
-  do {									      \
-    unsigned int __i;							      \
-    fd_set *__arr = (set);						      \
-    for (__i = 0; __i < sizeof (fd_set) / sizeof (__fd_mask); ++__i)	      \
-      __FDS_BITS (__arr)[__i] = 0;					      \
-  } while (0)
-
-#endif	/* GNU CC */
-
-#define __FD_SET(d, set) \
-  ((void) (__FDS_BITS (set)[__FD_ELT (d)] |= __FD_MASK (d)))
-#define __FD_CLR(d, set) \
-  ((void) (__FDS_BITS (set)[__FD_ELT (d)] &= ~__FD_MASK (d)))
-#define __FD_ISSET(d, set) \
-  ((__FDS_BITS (set)[__FD_ELT (d)] & __FD_MASK (d)) != 0)

lib/libc/include/i386-linux-gnu/bits/semaphore.h

@@ -1,40 +0,0 @@
-/* Copyright (C) 2002-2020 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library; if not, see
-   <https://www.gnu.org/licenses/>.  */
-
-#ifndef _SEMAPHORE_H
-# error "Never use <bits/semaphore.h> directly; include <semaphore.h> instead."
-#endif
-
-#include <bits/wordsize.h>
-
-#if __WORDSIZE == 64
-# define __SIZEOF_SEM_T	32
-#else
-# define __SIZEOF_SEM_T	16
-#endif
-
-
-/* Value returned if `sem_open' failed.  */
-#define SEM_FAILED      ((sem_t *) 0)
-
-
-typedef union
-{
-  char __size[__SIZEOF_SEM_T];
-  long int __align;
-} sem_t;

lib/libc/include/i386-linux-gnu/bits/sysctl.h

@@ -1,20 +0,0 @@
-/* Copyright (C) 2012-2020 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library; if not, see
-   <https://www.gnu.org/licenses/>.  */
-
-#if defined __x86_64__ && defined __ILP32__
-# error "sysctl system call is unsupported in x32 kernel"
-#endif