Merge remote-tracking branch 'origin/master' into llvm10

36 files changed, 216 insertions, 125 deletions

diff --git a/lib/libc/include/i386-linux-gnu/bits/endian.h b/lib/libc/include/i386-linux-gnu/bits/endian.h
deleted file mode 100644
index 35c898d0ec..0000000000
--- a/lib/libc/include/i386-linux-gnu/bits/endian.h
+++ /dev/null
@@ -1,7 +0,0 @@
-/* i386/x86_64 are little-endian.  */
-
-#ifndef _ENDIAN_H
-# error "Never use <bits/endian.h> directly; include <endian.h> instead."
-#endif
-
-#define __BYTE_ORDER __LITTLE_ENDIAN
\ No newline at end of file
diff --git a/lib/libc/include/i386-linux-gnu/bits/endianness.h b/lib/libc/include/i386-linux-gnu/bits/endianness.h
new file mode 100644
index 0000000000..80180b782e
--- /dev/null
+++ b/lib/libc/include/i386-linux-gnu/bits/endianness.h
@@ -0,0 +1,11 @@
+#ifndef _BITS_ENDIANNESS_H
+#define _BITS_ENDIANNESS_H 1
+
+#ifndef _BITS_ENDIAN_H
+# error "Never use <bits/endianness.h> directly; include <endian.h> instead."
+#endif
+
+/* i386/x86_64 are little-endian.  */
+#define __BYTE_ORDER __LITTLE_ENDIAN
+
+#endif /* bits/endianness.h */
\ No newline at end of file
diff --git a/lib/libc/include/i386-linux-gnu/bits/environments.h b/lib/libc/include/i386-linux-gnu/bits/environments.h
index 76f12fe085..2b18837e58 100644
--- a/lib/libc/include/i386-linux-gnu/bits/environments.h
+++ b/lib/libc/include/i386-linux-gnu/bits/environments.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 1999-2019 Free Software Foundation, Inc.
+/* Copyright (C) 1999-2020 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
@@ -13,7 +13,7 @@
 
    You should have received a copy of the GNU Lesser General Public
    License along with the GNU C Library; if not, see
-   <http://www.gnu.org/licenses/>.  */
+   <https://www.gnu.org/licenses/>.  */
 
 #ifndef _UNISTD_H
 # error "Never include this file directly.  Use <unistd.h> instead"
diff --git a/lib/libc/include/i386-linux-gnu/bits/epoll.h b/lib/libc/include/i386-linux-gnu/bits/epoll.h
index 205d42ad63..5f23749272 100644
--- a/lib/libc/include/i386-linux-gnu/bits/epoll.h
+++ b/lib/libc/include/i386-linux-gnu/bits/epoll.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 2002-2019 Free Software Foundation, Inc.
+/* 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
@@ -13,7 +13,7 @@
 
    You should have received a copy of the GNU Lesser General Public
    License along with the GNU C Library; if not, see
-   <http://www.gnu.org/licenses/>.  */
+   <https://www.gnu.org/licenses/>.  */
 
 #ifndef	_SYS_EPOLL_H
 # error "Never use <bits/epoll.h> directly; include <sys/epoll.h> instead."
diff --git a/lib/libc/include/i386-linux-gnu/bits/fcntl.h b/lib/libc/include/i386-linux-gnu/bits/fcntl.h
index d3229a6782..4eb8fa0b6f 100644
--- a/lib/libc/include/i386-linux-gnu/bits/fcntl.h
+++ b/lib/libc/include/i386-linux-gnu/bits/fcntl.h
@@ -1,5 +1,5 @@
 /* O_*, F_*, FD_* bit values for Linux/x86.
-   Copyright (C) 2001-2019 Free Software Foundation, Inc.
+   Copyright (C) 2001-2020 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
@@ -14,7 +14,7 @@
 
    You should have received a copy of the GNU Lesser General Public
    License along with the GNU C Library; if not, see
-   <http://www.gnu.org/licenses/>.  */
+   <https://www.gnu.org/licenses/>.  */
 
 #ifndef _FCNTL_H
 # error "Never use <bits/fcntl.h> directly; include <fcntl.h> instead."
diff --git a/lib/libc/include/i386-linux-gnu/bits/fenv.h b/lib/libc/include/i386-linux-gnu/bits/fenv.h
index 74151486b4..3164b63556 100644
--- a/lib/libc/include/i386-linux-gnu/bits/fenv.h
+++ b/lib/libc/include/i386-linux-gnu/bits/fenv.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 1997-2019 Free Software Foundation, Inc.
+/* 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
@@ -13,7 +13,7 @@
 
    You should have received a copy of the GNU Lesser General Public
    License along with the GNU C Library; if not, see
-   <http://www.gnu.org/licenses/>.  */
+   <https://www.gnu.org/licenses/>.  */
 
 #ifndef _FENV_H
 # error "Never use <bits/fenv.h> directly; include <fenv.h> instead."
@@ -101,7 +101,7 @@ fenv_t;
 # define FE_NOMASK_ENV	((const fenv_t *) -2)
 #endif
 
-#if __GLIBC_USE (IEC_60559_BFP_EXT)
+#if __GLIBC_USE (IEC_60559_BFP_EXT_C2X)
 /* Type representing floating-point control modes.  */
 typedef struct
   {
diff --git a/lib/libc/include/i386-linux-gnu/bits/floatn.h b/lib/libc/include/i386-linux-gnu/bits/floatn.h
index 1d7ba69ea8..36d64c23ec 100644
--- a/lib/libc/include/i386-linux-gnu/bits/floatn.h
+++ b/lib/libc/include/i386-linux-gnu/bits/floatn.h
@@ -1,5 +1,5 @@
 /* Macros to control TS 18661-3 glibc features on x86.
-   Copyright (C) 2017-2019 Free Software Foundation, Inc.
+   Copyright (C) 2017-2020 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
@@ -14,7 +14,7 @@
 
    You should have received a copy of the GNU Lesser General Public
    License along with the GNU C Library; if not, see
-   <http://www.gnu.org/licenses/>.  */
+   <https://www.gnu.org/licenses/>.  */
 
 #ifndef _BITS_FLOATN_H
 #define _BITS_FLOATN_H
diff --git a/lib/libc/include/i386-linux-gnu/bits/flt-eval-method.h b/lib/libc/include/i386-linux-gnu/bits/flt-eval-method.h
index 87e06c4354..9da0307897 100644
--- a/lib/libc/include/i386-linux-gnu/bits/flt-eval-method.h
+++ b/lib/libc/include/i386-linux-gnu/bits/flt-eval-method.h
@@ -1,5 +1,5 @@
 /* Define __GLIBC_FLT_EVAL_METHOD.  x86 version.
-   Copyright (C) 2016-2019 Free Software Foundation, Inc.
+   Copyright (C) 2016-2020 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
@@ -14,7 +14,7 @@
 
    You should have received a copy of the GNU Lesser General Public
    License along with the GNU C Library; if not, see
-   <http://www.gnu.org/licenses/>.  */
+   <https://www.gnu.org/licenses/>.  */
 
 #ifndef _MATH_H
 # error "Never use <bits/flt-eval-method.h> directly; include <math.h> instead."
diff --git a/lib/libc/include/i386-linux-gnu/bits/fp-logb.h b/lib/libc/include/i386-linux-gnu/bits/fp-logb.h
index f3e55ea50c..5f2e2a9f88 100644
--- a/lib/libc/include/i386-linux-gnu/bits/fp-logb.h
+++ b/lib/libc/include/i386-linux-gnu/bits/fp-logb.h
@@ -1,5 +1,5 @@
 /* Define __FP_LOGB0_IS_MIN and __FP_LOGBNAN_IS_MIN.  x86 version.
-   Copyright (C) 2016-2019 Free Software Foundation, Inc.
+   Copyright (C) 2016-2020 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
@@ -14,7 +14,7 @@
 
    You should have received a copy of the GNU Lesser General Public
    License along with the GNU C Library; if not, see
-   <http://www.gnu.org/licenses/>.  */
+   <https://www.gnu.org/licenses/>.  */
 
 #ifndef _MATH_H
 # error "Never use <bits/fp-logb.h> directly; include <math.h> instead."
diff --git a/lib/libc/include/i386-linux-gnu/bits/indirect-return.h b/lib/libc/include/i386-linux-gnu/bits/indirect-return.h
index fd170e8a42..e74139721c 100644
--- a/lib/libc/include/i386-linux-gnu/bits/indirect-return.h
+++ b/lib/libc/include/i386-linux-gnu/bits/indirect-return.h
@@ -1,5 +1,5 @@
 /* Definition of __INDIRECT_RETURN.  x86 version.
-   Copyright (C) 2018-2019 Free Software Foundation, Inc.
+   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
@@ -14,7 +14,7 @@
 
    You should have received a copy of the GNU Lesser General Public
    License along with the GNU C Library; if not, see
-   <http://www.gnu.org/licenses/>.  */
+   <https://www.gnu.org/licenses/>.  */
 
 #ifndef _UCONTEXT_H
 # error "Never include <bits/indirect-return.h> directly; use <ucontext.h> instead."
diff --git a/lib/libc/include/i386-linux-gnu/bits/ipctypes.h b/lib/libc/include/i386-linux-gnu/bits/ipctypes.h
index 2b471d1e52..7f6bb7662d 100644
--- a/lib/libc/include/i386-linux-gnu/bits/ipctypes.h
+++ b/lib/libc/include/i386-linux-gnu/bits/ipctypes.h
@@ -1,5 +1,5 @@
 /* bits/ipctypes.h -- Define some types used by SysV IPC/MSG/SHM.
-   Copyright (C) 2012-2019 Free Software Foundation, Inc.
+   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
@@ -14,7 +14,7 @@
 
    You should have received a copy of the GNU Lesser General Public
    License along with the GNU C Library; if not, see
-   <http://www.gnu.org/licenses/>.  */
+   <https://www.gnu.org/licenses/>.  */
 
 #ifndef _SYS_IPC_H
 # error "Never use <bits/ipctypes.h> directly; include <sys/ipc.h> instead."
diff --git a/lib/libc/include/i386-linux-gnu/bits/iscanonical.h b/lib/libc/include/i386-linux-gnu/bits/iscanonical.h
index 1fa01edaad..ee0d8720f9 100644
--- a/lib/libc/include/i386-linux-gnu/bits/iscanonical.h
+++ b/lib/libc/include/i386-linux-gnu/bits/iscanonical.h
@@ -1,5 +1,5 @@
 /* Define iscanonical macro.  ldbl-96 version.
-   Copyright (C) 2016-2019 Free Software Foundation, Inc.
+   Copyright (C) 2016-2020 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
@@ -14,7 +14,7 @@
 
    You should have received a copy of the GNU Lesser General Public
    License along with the GNU C Library; if not, see
-   <http://www.gnu.org/licenses/>.  */
+   <https://www.gnu.org/licenses/>.  */
 
 #ifndef _MATH_H
 # error "Never use <bits/iscanonical.h> directly; include <math.h> instead."
diff --git a/lib/libc/include/i386-linux-gnu/bits/link.h b/lib/libc/include/i386-linux-gnu/bits/link.h
index 2724980f6b..68938e8e0c 100644
--- a/lib/libc/include/i386-linux-gnu/bits/link.h
+++ b/lib/libc/include/i386-linux-gnu/bits/link.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 2004-2019 Free Software Foundation, Inc.
+/* Copyright (C) 2004-2020 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
@@ -13,7 +13,7 @@
 
    You should have received a copy of the GNU Lesser General Public
    License along with the GNU C Library; if not, see
-   <http://www.gnu.org/licenses/>.  */
+   <https://www.gnu.org/licenses/>.  */
 
 #ifndef	_LINK_H
 # error "Never include <bits/link.h> directly; use <link.h> instead."
diff --git a/lib/libc/include/i386-linux-gnu/bits/long-double.h b/lib/libc/include/i386-linux-gnu/bits/long-double.h
index 6a582416cf..a7bd8fb163 100644
--- a/lib/libc/include/i386-linux-gnu/bits/long-double.h
+++ b/lib/libc/include/i386-linux-gnu/bits/long-double.h
@@ -1,5 +1,5 @@
 /* Properties of long double type.  ldbl-96 version.
-   Copyright (C) 2016-2019 Free Software Foundation, Inc.
+   Copyright (C) 2016-2020 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
@@ -14,7 +14,8 @@
 
    You should have received a copy of the GNU Lesser General Public
    License along with the GNU C Library; if not, see
-   <http://www.gnu.org/licenses/>.  */
+   <https://www.gnu.org/licenses/>.  */
 
 /* long double is distinct from double, so there is nothing to
-   define here.  */
\ No newline at end of file
+   define here.  */
+#define __LONG_DOUBLE_USES_FLOAT128 0
\ No newline at end of file
diff --git a/lib/libc/include/i386-linux-gnu/bits/math-vector.h b/lib/libc/include/i386-linux-gnu/bits/math-vector.h
index 67e2c8aea8..f7571e827d 100644
--- a/lib/libc/include/i386-linux-gnu/bits/math-vector.h
+++ b/lib/libc/include/i386-linux-gnu/bits/math-vector.h
@@ -1,5 +1,5 @@
 /* Platform-specific SIMD declarations of math functions.
-   Copyright (C) 2014-2019 Free Software Foundation, Inc.
+   Copyright (C) 2014-2020 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
@@ -14,7 +14,7 @@
 
    You should have received a copy of the GNU Lesser General Public
    License along with the GNU C Library; if not, see
-   <http://www.gnu.org/licenses/>.  */
+   <https://www.gnu.org/licenses/>.  */
 
 #ifndef _MATH_H
 # error "Never include <bits/math-vector.h> directly;\
diff --git a/lib/libc/include/i386-linux-gnu/bits/mman.h b/lib/libc/include/i386-linux-gnu/bits/mman.h
index 90f3588b6e..4319c54436 100644
--- a/lib/libc/include/i386-linux-gnu/bits/mman.h
+++ b/lib/libc/include/i386-linux-gnu/bits/mman.h
@@ -1,5 +1,5 @@
 /* Definitions for POSIX memory map interface.  Linux/x86_64 version.
-   Copyright (C) 2001-2019 Free Software Foundation, Inc.
+   Copyright (C) 2001-2020 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
@@ -14,7 +14,7 @@
 
    You should have received a copy of the GNU Lesser General Public
    License along with the GNU C Library; if not, see
-   <http://www.gnu.org/licenses/>.  */
+   <https://www.gnu.org/licenses/>.  */
 
 #ifndef _SYS_MMAN_H
 # error "Never use <bits/mman.h> directly; include <sys/mman.h> instead."
diff --git a/lib/libc/include/i386-linux-gnu/bits/procfs-id.h b/lib/libc/include/i386-linux-gnu/bits/procfs-id.h
index 79f85bfd44..4f4cefeb4b 100644
--- a/lib/libc/include/i386-linux-gnu/bits/procfs-id.h
+++ b/lib/libc/include/i386-linux-gnu/bits/procfs-id.h
@@ -1,5 +1,5 @@
 /* Types of pr_uid and pr_gid in struct elf_prpsinfo.  x86 version.
-   Copyright (C) 2018-2019 Free Software Foundation, Inc.
+   Copyright (C) 2018-2020 Free Software Foundation, Inc.
 
    This file is part of the GNU C Library.
 
@@ -15,7 +15,7 @@
 
    You should have received a copy of the GNU Lesser General Public
    License along with the GNU C Library; if not, see
-   <http://www.gnu.org/licenses/>.  */
+   <https://www.gnu.org/licenses/>.  */
 
 #ifndef _SYS_PROCFS_H
 # error "Never include <bits/procfs-id.h> directly; use <sys/procfs.h> instead."
diff --git a/lib/libc/include/i386-linux-gnu/bits/procfs.h b/lib/libc/include/i386-linux-gnu/bits/procfs.h
index ea3cbfe1be..1f4ca5a0f0 100644
--- a/lib/libc/include/i386-linux-gnu/bits/procfs.h
+++ b/lib/libc/include/i386-linux-gnu/bits/procfs.h
@@ -1,5 +1,5 @@
 /* Types for registers for sys/procfs.h.  x86 version.
-   Copyright (C) 2001-2019 Free Software Foundation, Inc.
+   Copyright (C) 2001-2020 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
@@ -14,7 +14,7 @@
 
    You should have received a copy of the GNU Lesser General Public
    License along with the GNU C Library; if not, see
-   <http://www.gnu.org/licenses/>.  */
+   <https://www.gnu.org/licenses/>.  */
 
 #ifndef _SYS_PROCFS_H
 # error "Never include <bits/procfs.h> directly; use <sys/procfs.h> instead."
diff --git a/lib/libc/include/i386-linux-gnu/bits/pthreadtypes-arch.h b/lib/libc/include/i386-linux-gnu/bits/pthreadtypes-arch.h
index 7c5701b0b8..147ce690db 100644
--- a/lib/libc/include/i386-linux-gnu/bits/pthreadtypes-arch.h
+++ b/lib/libc/include/i386-linux-gnu/bits/pthreadtypes-arch.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 2002-2019 Free Software Foundation, Inc.
+/* 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
@@ -13,7 +13,7 @@
 
    You should have received a copy of the GNU Lesser General Public
    License along with the GNU C Library; if not, see
-   <http://www.gnu.org/licenses/>.  */
+   <https://www.gnu.org/licenses/>.  */
 
 #ifndef _BITS_PTHREADTYPES_ARCH_H
 #define _BITS_PTHREADTYPES_ARCH_H	1
@@ -24,20 +24,17 @@
 # if __WORDSIZE == 64
 #  define __SIZEOF_PTHREAD_MUTEX_T 40
 #  define __SIZEOF_PTHREAD_ATTR_T 56
-#  define __SIZEOF_PTHREAD_MUTEX_T 40
 #  define __SIZEOF_PTHREAD_RWLOCK_T 56
 #  define __SIZEOF_PTHREAD_BARRIER_T 32
 # else
 #  define __SIZEOF_PTHREAD_MUTEX_T 32
 #  define __SIZEOF_PTHREAD_ATTR_T 32
-#  define __SIZEOF_PTHREAD_MUTEX_T 32
 #  define __SIZEOF_PTHREAD_RWLOCK_T 44
 #  define __SIZEOF_PTHREAD_BARRIER_T 20
 # endif
 #else
 # define __SIZEOF_PTHREAD_MUTEX_T 24
 # define __SIZEOF_PTHREAD_ATTR_T 36
-# define __SIZEOF_PTHREAD_MUTEX_T 24
 # define __SIZEOF_PTHREAD_RWLOCK_T 32
 # define __SIZEOF_PTHREAD_BARRIER_T 20
 #endif
@@ -47,57 +44,9 @@
 #define __SIZEOF_PTHREAD_RWLOCKATTR_T 8
 #define __SIZEOF_PTHREAD_BARRIERATTR_T 4
 
-/* Definitions for internal mutex struct.  */
-#define __PTHREAD_COMPAT_PADDING_MID
-#define __PTHREAD_COMPAT_PADDING_END
-#define __PTHREAD_MUTEX_LOCK_ELISION    1
-#ifdef __x86_64__
-# define __PTHREAD_MUTEX_NUSERS_AFTER_KIND  0
-# define __PTHREAD_MUTEX_USE_UNION          0
-#else
-# define __PTHREAD_MUTEX_NUSERS_AFTER_KIND  1
-# define __PTHREAD_MUTEX_USE_UNION          1
-#endif
-
 #define __LOCK_ALIGNMENT
 #define __ONCE_ALIGNMENT
 
-struct __pthread_rwlock_arch_t
-{
-  unsigned int __readers;
-  unsigned int __writers;
-  unsigned int __wrphase_futex;
-  unsigned int __writers_futex;
-  unsigned int __pad3;
-  unsigned int __pad4;
-#ifdef __x86_64__
-  int __cur_writer;
-  int __shared;
-  signed char __rwelision;
-# ifdef  __ILP32__
-  unsigned char __pad1[3];
-#  define __PTHREAD_RWLOCK_ELISION_EXTRA 0, { 0, 0, 0 }
-# else
-  unsigned char __pad1[7];
-#  define __PTHREAD_RWLOCK_ELISION_EXTRA 0, { 0, 0, 0, 0, 0, 0, 0 }
-# endif
-  unsigned long int __pad2;
-  /* FLAGS must stay at this position in the structure to maintain
-     binary compatibility.  */
-  unsigned int __flags;
-# define __PTHREAD_RWLOCK_INT_FLAGS_SHARED	1
-#else
-  /* FLAGS must stay at this position in the structure to maintain
-     binary compatibility.  */
-  unsigned char __flags;
-  unsigned char __shared;
-  signed char __rwelision;
-# define __PTHREAD_RWLOCK_ELISION_EXTRA 0
-  unsigned char __pad2;
-  int __cur_writer;
-#endif
-};
-
 #ifndef __x86_64__
 /* Extra attributes for the cleanup functions.  */
 # define __cleanup_fct_attribute __attribute__ ((__regparm__ (1)))
diff --git a/lib/libc/include/i386-linux-gnu/bits/select.h b/lib/libc/include/i386-linux-gnu/bits/select.h
index 24d5067c62..959d998266 100644
--- a/lib/libc/include/i386-linux-gnu/bits/select.h
+++ b/lib/libc/include/i386-linux-gnu/bits/select.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 1997-2019 Free Software Foundation, Inc.
+/* 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
@@ -13,7 +13,7 @@
 
    You should have received a copy of the GNU Lesser General Public
    License along with the GNU C Library; if not, see
-   <http://www.gnu.org/licenses/>.  */
+   <https://www.gnu.org/licenses/>.  */
 
 #ifndef _SYS_SELECT_H
 # error "Never use <bits/select.h> directly; include <sys/select.h> instead."
diff --git a/lib/libc/include/i386-linux-gnu/bits/sem-pad.h b/lib/libc/include/i386-linux-gnu/bits/sem-pad.h
index bd8df25ace..10534c61cf 100644
--- a/lib/libc/include/i386-linux-gnu/bits/sem-pad.h
+++ b/lib/libc/include/i386-linux-gnu/bits/sem-pad.h
@@ -1,5 +1,5 @@
 /* Define where padding goes in struct semid_ds.  x86 version.
-   Copyright (C) 2018-2019 Free Software Foundation, Inc.
+   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
@@ -14,7 +14,7 @@
 
    You should have received a copy of the GNU Lesser General Public
    License along with the GNU C Library; if not, see
-   <http://www.gnu.org/licenses/>.  */
+   <https://www.gnu.org/licenses/>.  */
 
 #ifndef _SYS_SEM_H
 # error "Never use <bits/sem-pad.h> directly; include <sys/sem.h> instead."
diff --git a/lib/libc/include/i386-linux-gnu/bits/semaphore.h b/lib/libc/include/i386-linux-gnu/bits/semaphore.h
index c5733e31f4..7f41d9a880 100644
--- a/lib/libc/include/i386-linux-gnu/bits/semaphore.h
+++ b/lib/libc/include/i386-linux-gnu/bits/semaphore.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 2002-2019 Free Software Foundation, Inc.
+/* 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.
 
@@ -14,7 +14,7 @@
 
    You should have received a copy of the GNU Lesser General Public
    License along with the GNU C Library; if not, see
-   <http://www.gnu.org/licenses/>.  */
+   <https://www.gnu.org/licenses/>.  */
 
 #ifndef _SEMAPHORE_H
 # error "Never use <bits/semaphore.h> directly; include <semaphore.h> instead."
diff --git a/lib/libc/include/i386-linux-gnu/bits/setjmp.h b/lib/libc/include/i386-linux-gnu/bits/setjmp.h
index aec176f8d2..18d620397d 100644
--- a/lib/libc/include/i386-linux-gnu/bits/setjmp.h
+++ b/lib/libc/include/i386-linux-gnu/bits/setjmp.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 2001-2019 Free Software Foundation, Inc.
+/* Copyright (C) 2001-2020 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
@@ -13,7 +13,7 @@
 
    You should have received a copy of the GNU Lesser General Public
    License along with the GNU C Library; if not, see
-   <http://www.gnu.org/licenses/>.  */
+   <https://www.gnu.org/licenses/>.  */
 
 /* Define the machine-dependent type `jmp_buf'.  x86-64 version.  */
 #ifndef _BITS_SETJMP_H
diff --git a/lib/libc/include/i386-linux-gnu/bits/sigcontext.h b/lib/libc/include/i386-linux-gnu/bits/sigcontext.h
index 481a8a7bb5..7498f87f91 100644
--- a/lib/libc/include/i386-linux-gnu/bits/sigcontext.h
+++ b/lib/libc/include/i386-linux-gnu/bits/sigcontext.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 2002-2019 Free Software Foundation, Inc.
+/* 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
@@ -13,7 +13,7 @@
 
    You should have received a copy of the GNU Lesser General Public
    License along with the GNU C Library; if not, see
-   <http://www.gnu.org/licenses/>.  */
+   <https://www.gnu.org/licenses/>.  */
 
 #ifndef _BITS_SIGCONTEXT_H
 #define _BITS_SIGCONTEXT_H  1
diff --git a/lib/libc/include/i386-linux-gnu/bits/stat.h b/lib/libc/include/i386-linux-gnu/bits/stat.h
index ee7f88c463..ab5378300a 100644
--- a/lib/libc/include/i386-linux-gnu/bits/stat.h
+++ b/lib/libc/include/i386-linux-gnu/bits/stat.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 1999-2019 Free Software Foundation, Inc.
+/* Copyright (C) 1999-2020 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
@@ -13,7 +13,7 @@
 
    You should have received a copy of the GNU Lesser General Public
    License along with the GNU C Library; if not, see
-   <http://www.gnu.org/licenses/>.  */
+   <https://www.gnu.org/licenses/>.  */
 
 #if !defined _SYS_STAT_H && !defined _FCNTL_H
 # error "Never include <bits/stat.h> directly; use <sys/stat.h> instead."
diff --git a/lib/libc/include/i386-linux-gnu/bits/struct_mutex.h b/lib/libc/include/i386-linux-gnu/bits/struct_mutex.h
new file mode 100644
index 0000000000..44273158be
--- /dev/null
+++ b/lib/libc/include/i386-linux-gnu/bits/struct_mutex.h
@@ -0,0 +1,63 @@
+/* x86 internal mutex struct definitions.
+   Copyright (C) 2019-2020 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
+   <http://www.gnu.org/licenses/>.  */
+
+#ifndef _THREAD_MUTEX_INTERNAL_H
+#define _THREAD_MUTEX_INTERNAL_H 1
+
+struct __pthread_mutex_s
+{
+  int __lock;
+  unsigned int __count;
+  int __owner;
+#ifdef __x86_64__
+  unsigned int __nusers;
+#endif
+  /* KIND must stay at this position in the structure to maintain
+     binary compatibility with static initializers.  */
+  int __kind;
+#ifdef __x86_64__
+  short __spins;
+  short __elision;
+  __pthread_list_t __list;
+# define __PTHREAD_MUTEX_HAVE_PREV      1
+#else
+  unsigned int __nusers;
+  __extension__ union
+  {
+    struct
+    {
+      short __espins;
+      short __eelision;
+# define __spins __elision_data.__espins
+# define __elision __elision_data.__eelision
+    } __elision_data;
+    __pthread_slist_t __list;
+  };
+# define __PTHREAD_MUTEX_HAVE_PREV      0
+#endif
+};
+
+#ifdef __x86_64__
+# define __PTHREAD_MUTEX_INITIALIZER(__kind) \
+  0, 0, 0, 0, __kind, 0, 0, { 0, 0 }
+#else
+# define __PTHREAD_MUTEX_INITIALIZER(__kind) \
+  0, 0, 0, __kind, 0, { { 0, 0 } }
+#endif
+
+#endif
\ No newline at end of file
diff --git a/lib/libc/include/i386-linux-gnu/bits/struct_rwlock.h b/lib/libc/include/i386-linux-gnu/bits/struct_rwlock.h
new file mode 100644
index 0000000000..863b185dc9
--- /dev/null
+++ b/lib/libc/include/i386-linux-gnu/bits/struct_rwlock.h
@@ -0,0 +1,65 @@
+/* x86 internal rwlock struct definitions.
+   Copyright (C) 2019-2020 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
+   <http://www.gnu.org/licenses/>.  */
+
+#ifndef _RWLOCK_INTERNAL_H
+#define _RWLOCK_INTERNAL_H
+
+struct __pthread_rwlock_arch_t
+{
+  unsigned int __readers;
+  unsigned int __writers;
+  unsigned int __wrphase_futex;
+  unsigned int __writers_futex;
+  unsigned int __pad3;
+  unsigned int __pad4;
+#ifdef __x86_64__
+  int __cur_writer;
+  int __shared;
+  signed char __rwelision;
+# ifdef  __ILP32__
+  unsigned char __pad1[3];
+#  define __PTHREAD_RWLOCK_ELISION_EXTRA 0, { 0, 0, 0 }
+# else
+  unsigned char __pad1[7];
+#  define __PTHREAD_RWLOCK_ELISION_EXTRA 0, { 0, 0, 0, 0, 0, 0, 0 }
+# endif
+  unsigned long int __pad2;
+  /* FLAGS must stay at this position in the structure to maintain
+     binary compatibility.  */
+  unsigned int __flags;
+#else /* __x86_64__  */
+  /* FLAGS must stay at this position in the structure to maintain
+     binary compatibility.  */
+  unsigned char __flags;
+  unsigned char __shared;
+  signed char __rwelision;
+  unsigned char __pad2;
+  int __cur_writer;
+#endif
+};
+
+#ifdef __x86_64__
+# define __PTHREAD_RWLOCK_INITIALIZER(__flags) \
+  0, 0, 0, 0, 0, 0, 0, 0, __PTHREAD_RWLOCK_ELISION_EXTRA, 0, __flags
+#else
+# define __PTHREAD_RWLOCK_INITIALIZER(__flags) \
+  0, 0, 0, 0, 0, 0, __flags, 0, 0, 0, 0
+#endif
+
+#endif
\ No newline at end of file
diff --git a/lib/libc/include/i386-linux-gnu/bits/sysctl.h b/lib/libc/include/i386-linux-gnu/bits/sysctl.h
index 6b29199909..5e2b946cdf 100644
--- a/lib/libc/include/i386-linux-gnu/bits/sysctl.h
+++ b/lib/libc/include/i386-linux-gnu/bits/sysctl.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 2012-2019 Free Software Foundation, Inc.
+/* 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
@@ -13,7 +13,7 @@
 
    You should have received a copy of the GNU Lesser General Public
    License along with the GNU C Library; if not, see
-   <http://www.gnu.org/licenses/>.  */
+   <https://www.gnu.org/licenses/>.  */
 
 #if defined __x86_64__ && defined __ILP32__
 # error "sysctl system call is unsupported in x32 kernel"
diff --git a/lib/libc/include/i386-linux-gnu/bits/timesize.h b/lib/libc/include/i386-linux-gnu/bits/timesize.h
index 48fb555234..ae0a502d0d 100644
--- a/lib/libc/include/i386-linux-gnu/bits/timesize.h
+++ b/lib/libc/include/i386-linux-gnu/bits/timesize.h
@@ -1,5 +1,5 @@
 /* Bit size of the time_t type at glibc build time, x86-64 and x32 case.
-   Copyright (C) 2018-2019 Free Software Foundation, Inc.
+   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
@@ -14,7 +14,7 @@
 
    You should have received a copy of the GNU Lesser General Public
    License along with the GNU C Library; if not, see
-   <http://www.gnu.org/licenses/>.  */
+   <https://www.gnu.org/licenses/>.  */
 
 #if defined __x86_64__ && defined __ILP32__
 /* For x32, time is 64-bit even though word size is 32-bit.  */
diff --git a/lib/libc/include/i386-linux-gnu/bits/typesizes.h b/lib/libc/include/i386-linux-gnu/bits/typesizes.h
index 7c14f5d7f8..7ad60c3f43 100644
--- a/lib/libc/include/i386-linux-gnu/bits/typesizes.h
+++ b/lib/libc/include/i386-linux-gnu/bits/typesizes.h
@@ -1,5 +1,5 @@
 /* bits/typesizes.h -- underlying types for *_t.  Linux/x86-64 version.
-   Copyright (C) 2012-2019 Free Software Foundation, Inc.
+   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
@@ -14,7 +14,7 @@
 
    You should have received a copy of the GNU Lesser General Public
    License along with the GNU C Library; if not, see
-   <http://www.gnu.org/licenses/>.  */
+   <https://www.gnu.org/licenses/>.  */
 
 #ifndef _BITS_TYPES_H
 # error "Never include <bits/typesizes.h> directly; use <sys/types.h> instead."
@@ -84,8 +84,13 @@
 
 /* And for __rlim_t and __rlim64_t.  */
 # define __RLIM_T_MATCHES_RLIM64_T	1
+
+/* And for fsblkcnt_t, fsblkcnt64_t, fsfilcnt_t and fsfilcnt64_t.  */
+# define __STATFS_MATCHES_STATFS64  1
 #else
 # define __RLIM_T_MATCHES_RLIM64_T	0
+
+# define __STATFS_MATCHES_STATFS64  0
 #endif
 
 /* Number of descriptors that can fit in an `fd_set'.  */
diff --git a/lib/libc/include/i386-linux-gnu/finclude/math-vector-fortran.h b/lib/libc/include/i386-linux-gnu/finclude/math-vector-fortran.h
index fc3aa3e3b2..c56f5fc16f 100644
--- a/lib/libc/include/i386-linux-gnu/finclude/math-vector-fortran.h
+++ b/lib/libc/include/i386-linux-gnu/finclude/math-vector-fortran.h
@@ -1,5 +1,5 @@
 ! Platform-specific declarations of SIMD math functions for Fortran. -*- f90 -*-
-!   Copyright (C) 2019 Free Software Foundation, Inc.
+!   Copyright (C) 2019-2020 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
@@ -14,7 +14,7 @@
 !
 !   You should have received a copy of the GNU Lesser General Public
 !   License along with the GNU C Library; if not, see
-!   <http://www.gnu.org/licenses/>.
+!   <https://www.gnu.org/licenses/>.
 
 !GCC$ builtin (cos) attributes simd (notinbranch) if('x86_64')
 !GCC$ builtin (cosf) attributes simd (notinbranch) if('x86_64')
diff --git a/lib/libc/include/i386-linux-gnu/fpu_control.h b/lib/libc/include/i386-linux-gnu/fpu_control.h
index 1c06450778..fa0a861923 100644
--- a/lib/libc/include/i386-linux-gnu/fpu_control.h
+++ b/lib/libc/include/i386-linux-gnu/fpu_control.h
@@ -1,5 +1,5 @@
 /* FPU control word bits.  x86 version.
-   Copyright (C) 1993-2019 Free Software Foundation, Inc.
+   Copyright (C) 1993-2020 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Olaf Flebbe.
 
@@ -15,7 +15,7 @@
 
    You should have received a copy of the GNU Lesser General Public
    License along with the GNU C Library; if not, see
-   <http://www.gnu.org/licenses/>.  */
+   <https://www.gnu.org/licenses/>.  */
 
 #ifndef _FPU_CONTROL_H
 #define _FPU_CONTROL_H	1
diff --git a/lib/libc/include/i386-linux-gnu/sys/elf.h b/lib/libc/include/i386-linux-gnu/sys/elf.h
index d8c2c7acc8..d37502689d 100644
--- a/lib/libc/include/i386-linux-gnu/sys/elf.h
+++ b/lib/libc/include/i386-linux-gnu/sys/elf.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 1998-2019 Free Software Foundation, Inc.
+/* Copyright (C) 1998-2020 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
@@ -13,7 +13,7 @@
 
    You should have received a copy of the GNU Lesser General Public
    License along with the GNU C Library; if not, see
-   <http://www.gnu.org/licenses/>.  */
+   <https://www.gnu.org/licenses/>.  */
 
 #ifndef _SYS_ELF_H
 #define _SYS_ELF_H	1
diff --git a/lib/libc/include/i386-linux-gnu/sys/ptrace.h b/lib/libc/include/i386-linux-gnu/sys/ptrace.h
index 1f6c5b50fd..0977a402d7 100644
--- a/lib/libc/include/i386-linux-gnu/sys/ptrace.h
+++ b/lib/libc/include/i386-linux-gnu/sys/ptrace.h
@@ -1,5 +1,5 @@
 /* `ptrace' debugger support interface.  Linux/x86 version.
-   Copyright (C) 1996-2019 Free Software Foundation, Inc.
+   Copyright (C) 1996-2020 Free Software Foundation, Inc.
 
    This file is part of the GNU C Library.
 
@@ -15,7 +15,7 @@
 
    You should have received a copy of the GNU Lesser General Public
    License along with the GNU C Library; if not, see
-   <http://www.gnu.org/licenses/>.  */
+   <https://www.gnu.org/licenses/>.  */
 
 #ifndef _SYS_PTRACE_H
 #define _SYS_PTRACE_H	1
@@ -186,8 +186,12 @@ enum __ptrace_request
 #define PTRACE_SECCOMP_GET_FILTER PTRACE_SECCOMP_GET_FILTER
 
   /* Get seccomp BPF filter metadata.  */
-  PTRACE_SECCOMP_GET_METADATA = 0x420d
+  PTRACE_SECCOMP_GET_METADATA = 0x420d,
 #define PTRACE_SECCOMP_GET_METADATA PTRACE_SECCOMP_GET_METADATA
+
+  /* Get information about system call.  */
+  PTRACE_GET_SYSCALL_INFO = 0x420e
+#define PTRACE_GET_SYSCALL_INFO PTRACE_GET_SYSCALL_INFO
 };
 
 
diff --git a/lib/libc/include/i386-linux-gnu/sys/ucontext.h b/lib/libc/include/i386-linux-gnu/sys/ucontext.h
index 2127a222a9..3244eab7c8 100644
--- a/lib/libc/include/i386-linux-gnu/sys/ucontext.h
+++ b/lib/libc/include/i386-linux-gnu/sys/ucontext.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 2001-2019 Free Software Foundation, Inc.
+/* Copyright (C) 2001-2020 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
@@ -13,7 +13,7 @@
 
    You should have received a copy of the GNU Lesser General Public
    License along with the GNU C Library; if not, see
-   <http://www.gnu.org/licenses/>.  */
+   <https://www.gnu.org/licenses/>.  */
 
 #ifndef _SYS_UCONTEXT_H
 #define _SYS_UCONTEXT_H	1
diff --git a/lib/libc/include/i386-linux-gnu/sys/user.h b/lib/libc/include/i386-linux-gnu/sys/user.h
index 74bd6e393a..fe9d875789 100644
--- a/lib/libc/include/i386-linux-gnu/sys/user.h
+++ b/lib/libc/include/i386-linux-gnu/sys/user.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 2001-2019 Free Software Foundation, Inc.
+/* Copyright (C) 2001-2020 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
@@ -13,7 +13,7 @@
 
    You should have received a copy of the GNU Lesser General Public
    License along with the GNU C Library; if not, see
-   <http://www.gnu.org/licenses/>.  */
+   <https://www.gnu.org/licenses/>.  */
 
 #ifndef _SYS_USER_H
 #define _SYS_USER_H	1