Update dependencies (#333)

1 files changed, 642 insertions, 235 deletions

diff --git a/vendor/modernc.org/libc/signal/signal_linux_arm.go b/vendor/modernc.org/libc/signal/signal_linux_arm.go
index 9234e728d..74b0ed423 100644
--- a/vendor/modernc.org/libc/signal/signal_linux_arm.go
+++ b/vendor/modernc.org/libc/signal/signal_linux_arm.go
@@ -1,4 +1,4 @@
-// Code generated by 'ccgo signal/gen.c -crt-import-path "" -export-defines "" -export-enums "" -export-externs X -export-fields F -export-structs "" -export-typedefs "" -hide _OSSwapInt16,_OSSwapInt32,_OSSwapInt64 -o signal/signal_linux_arm.go -pkgname signal', DO NOT EDIT.
+// Code generated by 'ccgo signal/gen.c -crt-import-path "" -export-defines "" -export-enums "" -export-externs X -export-fields F -export-structs "" -export-typedefs "" -header -hide _OSSwapInt16,_OSSwapInt32,_OSSwapInt64 -o signal/signal_linux_arm.go -pkgname signal', DO NOT EDIT.
 
 package signal
 
@@ -15,13 +15,9 @@ var _ atomic.Value
 var _ unsafe.Pointer
 
 const (
-	BIG_ENDIAN                   = 4321
-	BYTE_ORDER                   = 1234
-	LITTLE_ENDIAN                = 1234
 	MINSIGSTKSZ                  = 2048
 	NGREG                        = 18
 	NSIG                         = 65
-	PDP_ENDIAN                   = 3412
 	SA_INTERRUPT                 = 0x20000000
 	SA_NOCLDSTOP                 = 1
 	SA_NOCLDWAIT                 = 2
@@ -73,7 +69,8 @@ const (
 	SIG_UNBLOCK                  = 1
 	X_ASMARM_SIGCONTEXT_H        = 0
 	X_ATFILE_SOURCE              = 1
-	X_BITS_BYTESWAP_H            = 1
+	X_BITS_ENDIANNESS_H          = 1
+	X_BITS_ENDIAN_H              = 1
 	X_BITS_PTHREADTYPES_ARCH_H   = 1
 	X_BITS_PTHREADTYPES_COMMON_H = 1
 	X_BITS_SIGACTION_H           = 1
@@ -86,13 +83,12 @@ const (
 	X_BITS_SIGSTACK_H            = 1
 	X_BITS_SIGTHREAD_H           = 1
 	X_BITS_SS_FLAGS_H            = 1
+	X_BITS_TIME64_H              = 1
 	X_BITS_TYPESIZES_H           = 1
 	X_BITS_TYPES_H               = 1
-	X_BITS_UINTN_IDENTITY_H      = 1
 	X_BSD_SIZE_T_                = 0
 	X_BSD_SIZE_T_DEFINED_        = 0
 	X_DEFAULT_SOURCE             = 1
-	X_ENDIAN_H                   = 1
 	X_FEATURES_H                 = 1
 	X_FILE_OFFSET_BITS           = 64
 	X_GCC_SIZE_T                 = 0
@@ -111,6 +107,7 @@ const (
 	X_SYS_CDEFS_H                = 1
 	X_SYS_SIZE_T_H               = 0
 	X_SYS_UCONTEXT_H             = 1
+	X_THREAD_MUTEX_INTERNAL_H    = 1
 	X_THREAD_SHARED_TYPES_H      = 1
 	X_T_SIZE                     = 0
 	X_T_SIZE_                    = 0
@@ -121,7 +118,7 @@ const (
 // POSIX names to access some of the members.
 
 // sigevent constants.  Linux version.
-//    Copyright (C) 1997-2018 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
@@ -136,7 +133,7 @@ const (
 //
 //    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/>.
 
 // `sigev_notify' values.
 const ( /* sigevent-consts.h:27:1: */
@@ -148,15 +145,18 @@ const ( /* sigevent-consts.h:27:1: */
 )
 
 // `si_code' values for SIGSEGV signal.
-const ( /* siginfo-consts.h:110:1: */
-	SEGV_MAPERR = 1 // Address not mapped to object.
-	SEGV_ACCERR = 2 // Invalid permissions for mapped object.
-	SEGV_BNDERR = 3 // Bounds checking failure.
-	SEGV_PKUERR = 4
+const ( /* siginfo-consts.h:119:1: */
+	SEGV_MAPERR  = 1 // Address not mapped to object.
+	SEGV_ACCERR  = 2 // Invalid permissions for mapped object.
+	SEGV_BNDERR  = 3 // Bounds checking failure.
+	SEGV_PKUERR  = 4 // Protection key checking failure.
+	SEGV_ACCADI  = 5 // ADI not enabled for mapped object.
+	SEGV_ADIDERR = 6 // Disrupting MCD error.
+	SEGV_ADIPERR = 7
 )
 
 // `si_code' values for SIGBUS signal.
-const ( /* siginfo-consts.h:123:1: */
+const ( /* siginfo-consts.h:138:1: */
 	BUS_ADRALN    = 1 // Invalid address alignment.
 	BUS_ADRERR    = 2 // Non-existant physical address.
 	BUS_OBJERR    = 3 // Object specific hardware error.
@@ -165,7 +165,7 @@ const ( /* siginfo-consts.h:123:1: */
 )
 
 // `si_code' values for SIGCHLD signal.
-const ( /* siginfo-consts.h:151:1: */
+const ( /* siginfo-consts.h:172:1: */
 	CLD_EXITED    = 1 // Child has exited.
 	CLD_KILLED    = 2 // Child was killed.
 	CLD_DUMPED    = 3 // Child terminated abnormally.
@@ -175,7 +175,7 @@ const ( /* siginfo-consts.h:151:1: */
 )
 
 // `si_code' values for SIGPOLL signal.
-const ( /* siginfo-consts.h:168:1: */
+const ( /* siginfo-consts.h:189:1: */
 	POLL_IN  = 1 // Data input available.
 	POLL_OUT = 2 // Output buffers available.
 	POLL_MSG = 3 // Input message available.
@@ -187,7 +187,7 @@ const ( /* siginfo-consts.h:168:1: */
 // X/Open requires some more fields with fixed names.
 
 // siginfo constants.  Linux version.
-//    Copyright (C) 1997-2018 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
@@ -202,7 +202,7 @@ const ( /* siginfo-consts.h:168:1: */
 //
 //    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/>.
 
 // Most of these constants are uniform across all architectures, but there
 //    is one exception.
@@ -211,43 +211,48 @@ const ( /* siginfo-consts.h:168:1: */
 // Values for `si_code'.  Positive values are reserved for kernel-generated
 //    signals.
 const ( /* siginfo-consts.h:35:1: */
-	SI_ASYNCNL = -60 // Sent by asynch name lookup completion.
-	SI_TKILL   = -6  // Sent by tkill.
-	SI_SIGIO   = -5  // Sent by queued SIGIO.
-	SI_ASYNCIO = -4  // Sent by AIO completion.
-	SI_MESGQ   = -3  // Sent by real time mesq state change.
-	SI_TIMER   = -2  // Sent by timer expiration.
-	SI_QUEUE   = -1  // Sent by sigqueue.
-	SI_USER    = 0   // Sent by kill, sigsend.
+	SI_ASYNCNL  = -60 // Sent by asynch name lookup completion.
+	SI_DETHREAD = -7  // Sent by execve killing subsidiary
+	// 				   threads.
+	SI_TKILL   = -6 // Sent by tkill.
+	SI_SIGIO   = -5 // Sent by queued SIGIO.
+	SI_ASYNCIO = -4 // Sent by AIO completion.
+	SI_MESGQ   = -3 // Sent by real time mesq state change.
+	SI_TIMER   = -2 // Sent by timer expiration.
+	SI_QUEUE   = -1 // Sent by sigqueue.
+	SI_USER    = 0  // Sent by kill, sigsend.
 	SI_KERNEL  = 128
 )
 
 // `si_code' values for SIGILL signal.
-const ( /* siginfo-consts.h:68:1: */
-	ILL_ILLOPC = 1 // Illegal opcode.
-	ILL_ILLOPN = 2 // Illegal operand.
-	ILL_ILLADR = 3 // Illegal addressing mode.
-	ILL_ILLTRP = 4 // Illegal trap.
-	ILL_PRVOPC = 5 // Privileged opcode.
-	ILL_PRVREG = 6 // Privileged register.
-	ILL_COPROC = 7 // Coprocessor error.
-	ILL_BADSTK = 8
+const ( /* siginfo-consts.h:71:1: */
+	ILL_ILLOPC   = 1 // Illegal opcode.
+	ILL_ILLOPN   = 2 // Illegal operand.
+	ILL_ILLADR   = 3 // Illegal addressing mode.
+	ILL_ILLTRP   = 4 // Illegal trap.
+	ILL_PRVOPC   = 5 // Privileged opcode.
+	ILL_PRVREG   = 6 // Privileged register.
+	ILL_COPROC   = 7 // Coprocessor error.
+	ILL_BADSTK   = 8 // Internal stack error.
+	ILL_BADIADDR = 9
 )
 
 // `si_code' values for SIGFPE signal.
-const ( /* siginfo-consts.h:89:1: */
-	FPE_INTDIV = 1 // Integer divide by zero.
-	FPE_INTOVF = 2 // Integer overflow.
-	FPE_FLTDIV = 3 // Floating point divide by zero.
-	FPE_FLTOVF = 4 // Floating point overflow.
-	FPE_FLTUND = 5 // Floating point underflow.
-	FPE_FLTRES = 6 // Floating point inexact result.
-	FPE_FLTINV = 7 // Floating point invalid operation.
-	FPE_FLTSUB = 8
+const ( /* siginfo-consts.h:94:1: */
+	FPE_INTDIV   = 1  // Integer divide by zero.
+	FPE_INTOVF   = 2  // Integer overflow.
+	FPE_FLTDIV   = 3  // Floating point divide by zero.
+	FPE_FLTOVF   = 4  // Floating point overflow.
+	FPE_FLTUND   = 5  // Floating point underflow.
+	FPE_FLTRES   = 6  // Floating point inexact result.
+	FPE_FLTINV   = 7  // Floating point invalid operation.
+	FPE_FLTSUB   = 8  // Subscript out of range.
+	FPE_FLTUNK   = 14 // Undiagnosed floating-point exception.
+	FPE_CONDTRAP = 15
 )
 
 // sigstack, sigaltstack definitions.
-//    Copyright (C) 1998-2018 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
@@ -262,14 +267,14 @@ const ( /* siginfo-consts.h:89:1: */
 //
 //    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/>.
 
 // Minimum stack size for a signal handler.
 
 // System default stack size.
 
 // ss_flags values for stack_t.  Linux version.
-//    Copyright (C) 1998-2018 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
@@ -284,7 +289,7 @@ const ( /* siginfo-consts.h:89:1: */
 //
 //    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/>.
 
 // Possible values for `ss_flags'.
 const ( /* ss_flags.h:27:1: */
@@ -321,7 +326,7 @@ type Wchar_t = uint32 /* <builtin>:15:24 */
 type X__builtin_va_list = uintptr /* <builtin>:46:14 */
 type X__float128 = float64        /* <builtin>:47:21 */
 
-// Copyright (C) 1991-2018 Free Software Foundation, Inc.
+// Copyright (C) 1991-2020 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
@@ -336,11 +341,11 @@ type X__float128 = float64        /* <builtin>:47:21 */
 //
 //    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/>.
 
 //	ISO C99 Standard: 7.14 Signal handling <signal.h>
 
-// Copyright (C) 1991-2018 Free Software Foundation, Inc.
+// Copyright (C) 1991-2020 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
@@ -355,7 +360,7 @@ type X__float128 = float64        /* <builtin>:47:21 */
 //
 //    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/>.
 
 // These are defined by the user (or the compiler)
 //    to specify the desired environment:
@@ -363,6 +368,7 @@ type X__float128 = float64        /* <builtin>:47:21 */
 //    __STRICT_ANSI__	ISO Standard C.
 //    _ISOC99_SOURCE	Extensions to ISO C89 from ISO C99.
 //    _ISOC11_SOURCE	Extensions to ISO C99 from ISO C11.
+//    _ISOC2X_SOURCE	Extensions to ISO C99 from ISO C2X.
 //    __STDC_WANT_LIB_EXT2__
 // 			Extensions to ISO C99 from TR 27431-2:2010.
 //    __STDC_WANT_IEC_60559_BFP_EXT__
@@ -483,6 +489,8 @@ type X__float128 = float64        /* <builtin>:47:21 */
 // If nothing (other than _GNU_SOURCE and _DEFAULT_SOURCE) is defined,
 //    define _DEFAULT_SOURCE.
 
+// This is to enable the ISO C2X extension.
+
 // This is to enable the ISO C11 extension.
 
 // This is to enable the ISO C99 extension.
@@ -505,9 +513,22 @@ type X__float128 = float64        /* <builtin>:47:21 */
 //    compatibility with various implementations of <cstdio>, this test
 //    must consider only the value of __cplusplus when compiling C++.
 
+// GNU formerly extended the scanf functions with modified format
+//    specifiers %as, %aS, and %a[...] that allocate a buffer for the
+//    input using malloc.  This extension conflicts with ISO C99, which
+//    defines %a as a standalone format specifier that reads a floating-
+//    point number; moreover, POSIX.1-2008 provides the same feature
+//    using the modifier letter 'm' instead (%ms, %mS, %m[...]).
+//
+//    We now follow C99 unless GNU extensions are active and the compiler
+//    is specifically in C89 or C++98 mode (strict or not).  For
+//    instance, with GCC, -std=gnu11 will have C99-compliant scanf with
+//    or without -D_GNU_SOURCE, but -std=c89 -D_GNU_SOURCE will have the
+//    old extension.
+
 // Get definitions of __STDC_* predefined macros, if the compiler has
 //    not preincluded this header automatically.
-// Copyright (C) 1991-2018 Free Software Foundation, Inc.
+// Copyright (C) 1991-2020 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
@@ -522,7 +543,7 @@ type X__float128 = float64        /* <builtin>:47:21 */
 //
 //    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/>.
 
 // This macro indicates that the installed library is the GNU C Library.
 //    For historic reasons the value now is 6 and this will stay from now
@@ -535,7 +556,7 @@ type X__float128 = float64        /* <builtin>:47:21 */
 //    these macros to test for features in specific releases.
 
 // This is here only because every header file already includes this one.
-// Copyright (C) 1992-2018 Free Software Foundation, Inc.
+// Copyright (C) 1992-2020 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
@@ -550,7 +571,7 @@ type X__float128 = float64        /* <builtin>:47:21 */
 //
 //    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/>.
 
 // We are almost always included from features.h.
 
@@ -665,7 +686,7 @@ type X__float128 = float64        /* <builtin>:47:21 */
 //    semantics.
 //
 //    clang++ identifies itself as gcc-4.2, but has support for GNU inlining
-//    semantics, that can be checked fot by using the __GNUC_STDC_INLINE_ and
+//    semantics, that can be checked for by using the __GNUC_STDC_INLINE_ and
 //    __GNUC_GNU_INLINE__ macro definitions.
 
 // GCC 4.3 and above allow passing all anonymous arguments of an
@@ -686,7 +707,11 @@ type X__float128 = float64        /* <builtin>:47:21 */
 //    argument to strncpy and strncat, as the char array is not necessarily
 //    a NUL-terminated string.
 
-// Copyright (C) 1999-2018 Free Software Foundation, Inc.
+// Undefine (also defined in libc-symbols.h).
+// Copies attributes from the declaration or type referenced by
+//    the argument.
+
+// 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
@@ -701,10 +726,10 @@ type X__float128 = float64        /* <builtin>:47:21 */
 //
 //    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/>.
 
 // Properties of long double type.
-//    Copyright (C) 2016-2018 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
@@ -719,7 +744,7 @@ type X__float128 = float64        /* <builtin>:47:21 */
 //
 //    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/>.
 
 // This header is included by <sys/cdefs.h>.
 //
@@ -773,7 +798,7 @@ type X__float128 = float64        /* <builtin>:47:21 */
 //    every time called, usually setting errno to ENOSYS.
 
 // bits/types.h -- definitions of __*_t types underlying *_t types.
-//    Copyright (C) 2002-2018 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
@@ -788,11 +813,11 @@ type X__float128 = float64        /* <builtin>:47:21 */
 //
 //    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/>.
 
 // Never include this file directly; use <sys/types.h> instead.
 
-// Copyright (C) 1991-2018 Free Software Foundation, Inc.
+// Copyright (C) 1991-2020 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
@@ -807,9 +832,9 @@ type X__float128 = float64        /* <builtin>:47:21 */
 //
 //    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/>.
 
-// Copyright (C) 1999-2018 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
@@ -824,41 +849,78 @@ type X__float128 = float64        /* <builtin>:47:21 */
 //
 //    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/>.
+
+// Bit size of the time_t type at glibc build time, general case.
+//    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/>.
+
+// 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
+//    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/>.
+
+// Size in bits of the 'time_t' type of the default ABI.
 
 // Convenience types.
-type X__u_char = uint8   /* types.h:30:23 */
-type X__u_short = uint16 /* types.h:31:28 */
-type X__u_int = uint32   /* types.h:32:22 */
-type X__u_long = uint32  /* types.h:33:27 */
+type X__u_char = uint8   /* types.h:31:23 */
+type X__u_short = uint16 /* types.h:32:28 */
+type X__u_int = uint32   /* types.h:33:22 */
+type X__u_long = uint32  /* types.h:34:27 */
 
 // Fixed-size types, underlying types depend on word size and compiler.
-type X__int8_t = int8     /* types.h:36:21 */
-type X__uint8_t = uint8   /* types.h:37:23 */
-type X__int16_t = int16   /* types.h:38:26 */
-type X__uint16_t = uint16 /* types.h:39:28 */
-type X__int32_t = int32   /* types.h:40:20 */
-type X__uint32_t = uint32 /* types.h:41:22 */
-type X__int64_t = int64   /* types.h:46:44 */
-type X__uint64_t = uint64 /* types.h:47:46 */
+type X__int8_t = int8     /* types.h:37:21 */
+type X__uint8_t = uint8   /* types.h:38:23 */
+type X__int16_t = int16   /* types.h:39:26 */
+type X__uint16_t = uint16 /* types.h:40:28 */
+type X__int32_t = int32   /* types.h:41:20 */
+type X__uint32_t = uint32 /* types.h:42:22 */
+type X__int64_t = int64   /* types.h:47:44 */
+type X__uint64_t = uint64 /* types.h:48:46 */
 
 // Smallest types with at least a given width.
-type X__int_least8_t = X__int8_t     /* types.h:51:18 */
-type X__uint_least8_t = X__uint8_t   /* types.h:52:19 */
-type X__int_least16_t = X__int16_t   /* types.h:53:19 */
-type X__uint_least16_t = X__uint16_t /* types.h:54:20 */
-type X__int_least32_t = X__int32_t   /* types.h:55:19 */
-type X__uint_least32_t = X__uint32_t /* types.h:56:20 */
-type X__int_least64_t = X__int64_t   /* types.h:57:19 */
-type X__uint_least64_t = X__uint64_t /* types.h:58:20 */
+type X__int_least8_t = X__int8_t     /* types.h:52:18 */
+type X__uint_least8_t = X__uint8_t   /* types.h:53:19 */
+type X__int_least16_t = X__int16_t   /* types.h:54:19 */
+type X__uint_least16_t = X__uint16_t /* types.h:55:20 */
+type X__int_least32_t = X__int32_t   /* types.h:56:19 */
+type X__uint_least32_t = X__uint32_t /* types.h:57:20 */
+type X__int_least64_t = X__int64_t   /* types.h:58:19 */
+type X__uint_least64_t = X__uint64_t /* types.h:59:20 */
 
 // quad_t is also 64 bits.
-type X__quad_t = int64    /* types.h:65:37 */
-type X__u_quad_t = uint64 /* types.h:66:46 */
+type X__quad_t = int64    /* types.h:66:37 */
+type X__u_quad_t = uint64 /* types.h:67:46 */
 
 // Largest integral types.
-type X__intmax_t = int64   /* types.h:74:37 */
-type X__uintmax_t = uint64 /* types.h:75:46 */
+type X__intmax_t = int64   /* types.h:75:37 */
+type X__uintmax_t = uint64 /* types.h:76:46 */
 
 // The machine-dependent file <bits/typesizes.h> defines __*_T_TYPE
 //    macros for each of the OS types we define below.  The definitions
@@ -870,7 +932,7 @@ type X__uintmax_t = uint64 /* types.h:75:46 */
 // 	32		-- "natural" 32-bit type (always int)
 // 	64		-- "natural" 64-bit type (long or long long)
 // 	LONG32		-- 32-bit type, traditionally long
-// 	QUAD		-- 64-bit type, always long long
+// 	QUAD		-- 64-bit type, traditionally long long
 // 	WORD		-- natural type of __WORDSIZE bits (int or long)
 // 	LONGWORD	-- type of __WORDSIZE bits, traditionally long
 //
@@ -892,7 +954,7 @@ type X__uintmax_t = uint64 /* types.h:75:46 */
 // We want __extension__ before typedef's that use nonstandard base types
 //    such as `long long' in C89 mode.
 // bits/typesizes.h -- underlying types for *_t.  Generic version.
-//    Copyright (C) 2002-2018 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
@@ -907,86 +969,113 @@ type X__uintmax_t = uint64 /* types.h:75:46 */
 //
 //    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/>.
 
 // 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.
 
 // Number of descriptors that can fit in an `fd_set'.
 
-type X__dev_t = X__u_quad_t                /* types.h:143:25 */ // Type of device numbers.
-type X__uid_t = uint32                     /* types.h:144:25 */ // Type of user identifications.
-type X__gid_t = uint32                     /* types.h:145:25 */ // Type of group identifications.
-type X__ino_t = uint32                     /* types.h:146:25 */ // Type of file serial numbers.
-type X__ino64_t = X__u_quad_t              /* types.h:147:27 */ // Type of file serial numbers (LFS).
-type X__mode_t = uint32                    /* types.h:148:26 */ // Type of file attribute bitmasks.
-type X__nlink_t = uint32                   /* types.h:149:27 */ // Type of file link counts.
-type X__off_t = int32                      /* types.h:150:25 */ // Type of file sizes and offsets.
-type X__off64_t = X__quad_t                /* types.h:151:27 */ // Type of file sizes and offsets (LFS).
-type X__pid_t = int32                      /* types.h:152:25 */ // Type of process identifications.
-type X__fsid_t = struct{ F__val [2]int32 } /* types.h:153:26 */ // Type of file system IDs.
-type X__clock_t = int32                    /* types.h:154:27 */ // Type of CPU usage counts.
-type X__rlim_t = uint32                    /* types.h:155:26 */ // Type for resource measurement.
-type X__rlim64_t = X__u_quad_t             /* types.h:156:28 */ // Type for resource measurement (LFS).
-type X__id_t = uint32                      /* types.h:157:24 */ // General type for IDs.
-type X__time_t = int32                     /* types.h:158:26 */ // Seconds since the Epoch.
-type X__useconds_t = uint32                /* types.h:159:30 */ // Count of microseconds.
-type X__suseconds_t = int32                /* types.h:160:31 */ // Signed count of microseconds.
-
-type X__daddr_t = int32 /* types.h:162:27 */ // The type of a disk address.
-type X__key_t = int32   /* types.h:163:25 */ // Type of an IPC key.
+// bits/time64.h -- underlying types for __time64_t.  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/>.
+
+// Define __TIME64_T_TYPE so that it is always a 64-bit type.
+
+// Define a 64-bit time type alongsize the 32-bit one.
+
+type X__dev_t = X__uint64_t                /* types.h:145:25 */ // Type of device numbers.
+type X__uid_t = uint32                     /* types.h:146:25 */ // Type of user identifications.
+type X__gid_t = uint32                     /* types.h:147:25 */ // Type of group identifications.
+type X__ino_t = uint32                     /* types.h:148:25 */ // Type of file serial numbers.
+type X__ino64_t = X__uint64_t              /* types.h:149:27 */ // Type of file serial numbers (LFS).
+type X__mode_t = uint32                    /* types.h:150:26 */ // Type of file attribute bitmasks.
+type X__nlink_t = uint32                   /* types.h:151:27 */ // Type of file link counts.
+type X__off_t = int32                      /* types.h:152:25 */ // Type of file sizes and offsets.
+type X__off64_t = X__int64_t               /* types.h:153:27 */ // Type of file sizes and offsets (LFS).
+type X__pid_t = int32                      /* types.h:154:25 */ // Type of process identifications.
+type X__fsid_t = struct{ F__val [2]int32 } /* types.h:155:26 */ // Type of file system IDs.
+type X__clock_t = int32                    /* types.h:156:27 */ // Type of CPU usage counts.
+type X__rlim_t = uint32                    /* types.h:157:26 */ // Type for resource measurement.
+type X__rlim64_t = X__uint64_t             /* types.h:158:28 */ // Type for resource measurement (LFS).
+type X__id_t = uint32                      /* types.h:159:24 */ // General type for IDs.
+type X__time_t = int32                     /* types.h:160:26 */ // Seconds since the Epoch.
+type X__useconds_t = uint32                /* types.h:161:30 */ // Count of microseconds.
+type X__suseconds_t = int32                /* types.h:162:31 */ // Signed count of microseconds.
+
+type X__daddr_t = int32 /* types.h:164:27 */ // The type of a disk address.
+type X__key_t = int32   /* types.h:165:25 */ // Type of an IPC key.
 
 // Clock ID used in clock and timer functions.
-type X__clockid_t = int32 /* types.h:166:29 */
+type X__clockid_t = int32 /* types.h:168:29 */
 
 // Timer ID returned by `timer_create'.
-type X__timer_t = uintptr /* types.h:169:12 */
+type X__timer_t = uintptr /* types.h:171:12 */
 
 // Type to represent block size.
-type X__blksize_t = int32 /* types.h:172:29 */
+type X__blksize_t = int32 /* types.h:174:29 */
 
 // Types from the Large File Support interface.
 
 // Type to count number of disk blocks.
-type X__blkcnt_t = int32       /* types.h:177:28 */
-type X__blkcnt64_t = X__quad_t /* types.h:178:30 */
+type X__blkcnt_t = int32        /* types.h:179:28 */
+type X__blkcnt64_t = X__int64_t /* types.h:180:30 */
 
 // Type to count file system blocks.
-type X__fsblkcnt_t = uint32        /* types.h:181:30 */
-type X__fsblkcnt64_t = X__u_quad_t /* types.h:182:32 */
+type X__fsblkcnt_t = uint32        /* types.h:183:30 */
+type X__fsblkcnt64_t = X__uint64_t /* types.h:184:32 */
 
 // Type to count file system nodes.
-type X__fsfilcnt_t = uint32        /* types.h:185:30 */
-type X__fsfilcnt64_t = X__u_quad_t /* types.h:186:32 */
+type X__fsfilcnt_t = uint32        /* types.h:187:30 */
+type X__fsfilcnt64_t = X__uint64_t /* types.h:188:32 */
 
 // Type of miscellaneous file system fields.
-type X__fsword_t = int32 /* types.h:189:28 */
+type X__fsword_t = int32 /* types.h:191:28 */
 
-type X__ssize_t = int32 /* types.h:191:27 */ // Type of a byte count, or error.
+type X__ssize_t = int32 /* types.h:193:27 */ // Type of a byte count, or error.
 
 // Signed long type used in system calls.
-type X__syscall_slong_t = int32 /* types.h:194:33 */
+type X__syscall_slong_t = int32 /* types.h:196:33 */
 // Unsigned long type used in system calls.
-type X__syscall_ulong_t = uint32 /* types.h:196:33 */
+type X__syscall_ulong_t = uint32 /* types.h:198:33 */
 
 // These few don't really vary by system, they always correspond
 //    to one of the other defined types.
-type X__loff_t = X__off64_t /* types.h:200:19 */ // Type of file sizes and offsets (LFS).
-type X__caddr_t = uintptr   /* types.h:201:14 */
+type X__loff_t = X__off64_t /* types.h:202:19 */ // Type of file sizes and offsets (LFS).
+type X__caddr_t = uintptr   /* types.h:203:14 */
 
 // Duplicates info from stdint.h but this is used in unistd.h.
-type X__intptr_t = int32 /* types.h:204:25 */
+type X__intptr_t = int32 /* types.h:206:25 */
 
 // Duplicate info from sys/socket.h.
-type X__socklen_t = uint32 /* types.h:207:23 */
+type X__socklen_t = uint32 /* types.h:209:23 */
 
 // C99: An integer type that can be accessed as an atomic entity,
 //    even in the presence of asynchronous interrupts.
 //    It is not currently necessary for this to be machine-specific.
-type X__sig_atomic_t = int32 /* types.h:212:13 */
+type X__sig_atomic_t = int32 /* types.h:214:13 */
+
+// Seconds since the Epoch, visible to user code when time_t is too
+//    narrow only for consistency with the old way of widening too-narrow
+//    types.  User code should never use __time64_t.
+type X__time64_t = X__int64_t /* types.h:222:28 */
 
 // Signal number definitions.  Linux version.
-//    Copyright (C) 1995-2018 Free Software Foundation, Inc.
+//    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
@@ -1001,10 +1090,10 @@ type X__sig_atomic_t = int32 /* types.h:212:13 */
 //
 //    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/>.
 
 // Signal number constants.  Generic template.
-//    Copyright (C) 1991-2018 Free Software Foundation, Inc.
+//    Copyright (C) 1991-2020 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
@@ -1019,7 +1108,7 @@ type X__sig_atomic_t = int32 /* types.h:212:13 */
 //
 //    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/>.
 
 // Fake signal functions.
 
@@ -1058,7 +1147,7 @@ type X__sig_atomic_t = int32 /* types.h:212:13 */
 //    most Linux systems.
 
 // bits/types.h -- definitions of __*_t types underlying *_t types.
-//    Copyright (C) 2002-2018 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
@@ -1073,7 +1162,7 @@ type X__sig_atomic_t = int32 /* types.h:212:13 */
 //
 //    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/>.
 
 // Never include this file directly; use <sys/types.h> instead.
 
@@ -1093,7 +1182,7 @@ type Uid_t = X__uid_t /* signal.h:46:17 */
 // NB: Include guard matches what <linux/time.h> uses.
 
 // bits/types.h -- definitions of __*_t types underlying *_t types.
-//    Copyright (C) 2002-2018 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
@@ -1108,18 +1197,51 @@ type Uid_t = X__uid_t /* signal.h:46:17 */
 //
 //    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/>.
 
 // Never include this file directly; use <sys/types.h> instead.
 
+// Endian macros for string.h functions
+//    Copyright (C) 1992-2020 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/>.
+
+// Definitions for byte order, according to significance of bytes,
+//    from low addresses to high addresses.  The value is what you get by
+//    putting '4' in the most significant byte, '3' in the second most
+//    significant byte, '2' in the second least significant byte, and '1'
+//    in the least significant byte, and then writing down one digit for
+//    each byte, starting with the byte at the lowest address at the left,
+//    and proceeding to the byte with the highest address at the right.
+
+// This file defines `__BYTE_ORDER' for the particular machine.
+
+// ARM has selectable endianness.
+
+// Some machines may need to use a different endianness for floating point
+//    values.
+
 // POSIX.1b structure for a time value.  This is like a `struct timeval' but
 //    has nanoseconds instead of microseconds.
 type Timespec = struct {
 	Ftv_sec  X__time_t
 	Ftv_nsec X__syscall_slong_t
-} /* struct_timespec.h:9:1 */
+} /* struct_timespec.h:10:1 */
 
-// Copyright (C) 1999-2018 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
@@ -1134,10 +1256,10 @@ type Timespec = struct {
 //
 //    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/>.
 
 // bits/types.h -- definitions of __*_t types underlying *_t types.
-//    Copyright (C) 2002-2018 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
@@ -1152,12 +1274,12 @@ type Timespec = struct {
 //
 //    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/>.
 
 // Never include this file directly; use <sys/types.h> instead.
 
 // Define __sigval_t.
-//    Copyright (C) 1997-2018 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
@@ -1172,7 +1294,7 @@ type Timespec = struct {
 //
 //    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/>.
 
 // Type for data associated with a signal.
 type Sigval = struct{ Fsival_int int32 } /* __sigval_t.h:24:1 */
@@ -1195,7 +1317,7 @@ type Siginfo_t = struct {
 //    These are all considered GNU extensions.
 
 // Define __sigval_t.
-//    Copyright (C) 1997-2018 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
@@ -1210,7 +1332,7 @@ type Siginfo_t = struct {
 //
 //    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/>.
 
 // To avoid sigval_t (not a standard type name) having C++ name
 //    mangling depending on whether the selected standard includes union
@@ -1221,7 +1343,7 @@ type Siginfo_t = struct {
 
 type Sigval_t = X__sigval_t /* sigval_t.h:16:20 */
 
-// Copyright (C) 1999-2018 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
@@ -1236,10 +1358,10 @@ type Sigval_t = X__sigval_t /* sigval_t.h:16:20 */
 //
 //    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/>.
 
 // bits/types.h -- definitions of __*_t types underlying *_t types.
-//    Copyright (C) 2002-2018 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
@@ -1254,12 +1376,12 @@ type Sigval_t = X__sigval_t /* sigval_t.h:16:20 */
 //
 //    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/>.
 
 // Never include this file directly; use <sys/types.h> instead.
 
 // Define __sigval_t.
-//    Copyright (C) 1997-2018 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
@@ -1274,15 +1396,15 @@ type Sigval_t = X__sigval_t /* sigval_t.h:16:20 */
 //
 //    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/>.
 
 // Forward declaration.
 type Pthread_attr_t1 = struct {
-	_       [0]uint32
-	F__size [36]int8
+	F__ccgo_pad1 [0]uint32
+	F__size      [36]uint8
 } /* sigevent_t.h:17:9 */
 
-// Copyright (C) 1999-2018 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
@@ -1297,10 +1419,10 @@ type Pthread_attr_t1 = struct {
 //
 //    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/>.
 
 // bits/types.h -- definitions of __*_t types underlying *_t types.
-//    Copyright (C) 2002-2018 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
@@ -1315,12 +1437,12 @@ type Pthread_attr_t1 = struct {
 //
 //    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/>.
 
 // Never include this file directly; use <sys/types.h> instead.
 
 // Define __sigval_t.
-//    Copyright (C) 1997-2018 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
@@ -1335,7 +1457,7 @@ type Pthread_attr_t1 = struct {
 //
 //    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/>.
 
 // Forward declaration.
 type Pthread_attr_t = Pthread_attr_t1 /* sigevent_t.h:17:30 */
@@ -1360,7 +1482,7 @@ type Sig_t = X__sighandler_t /* signal.h:190:24 */
 // Get the system-specific definitions of `struct sigaction'
 //    and the `SA_*' and `SIG_*'. constants.
 // The proper definitions for Linux's sigaction.
-//    Copyright (C) 1993-2018 Free Software Foundation, Inc.
+//    Copyright (C) 1993-2020 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
@@ -1375,7 +1497,7 @@ type Sig_t = X__sighandler_t /* signal.h:190:24 */
 //
 //    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/>.
 
 // Structure describing the action to be taken when a signal arrives.
 type Sigaction = struct {
@@ -1386,7 +1508,7 @@ type Sigaction = struct {
 } /* sigaction.h:27:1 */
 
 // Get machine-dependent `struct sigcontext' and signal subcodes.
-// Copyright (C) 1996-2018 Free Software Foundation, Inc.
+// 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
@@ -1401,7 +1523,7 @@ type Sigaction = struct {
 //
 //    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/>.
 
 // Kernel headers before 2.1.1 define a struct sigcontext_struct, but
 //    we need sigcontext.
@@ -1443,15 +1565,10 @@ type Sigcontext = struct {
 // Define this type if we are doing the whole job,
 //    or if we want this type in particular.
 
-//  In 4.3bsd-net2, leave these undefined to indicate that size_t, etc.
-//     are already defined.
-//  BSD/OS 3.1 and FreeBSD [23].x require the MACHINE_ANSI_H check here.
-//  NetBSD 5 requires the I386_ANSI_H and X86_64_ANSI_H checks here.
-
 // A null pointer constant.
 
 // Define stack_t.  Linux version.
-//    Copyright (C) 1998-2018 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
@@ -1466,9 +1583,9 @@ type Sigcontext = struct {
 //
 //    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/>.
 
-// Copyright (C) 1989-2018 Free Software Foundation, Inc.
+// Copyright (C) 1989-2020 Free Software Foundation, Inc.
 //
 // This file is part of GCC.
 //
@@ -1500,15 +1617,6 @@ type Sigcontext = struct {
 // This avoids lossage on SunOS but only if stdtypes.h comes first.
 //    There's no way to win with the other order!  Sun lossage.
 
-// On 4.3bsd-net2, make sure ansi.h is included, so we have
-//    one less case to deal with in the following.
-// On FreeBSD 5, machine/ansi.h does not exist anymore...
-
-// In 4.3bsd-net2, machine/ansi.h defines these symbols, which are
-//    defined if the corresponding type is *not* defined.
-//    FreeBSD-2.1 defines _MACHINE_ANSI_H_ instead of _ANSI_H_.
-//    NetBSD defines _I386_ANSI_H_ and _X86_64_ANSI_H_ instead of _ANSI_H_
-
 // Sequent's header files use _PTRDIFF_T_ in some conflicting way.
 //    Just ignore it.
 
@@ -1543,11 +1651,6 @@ type Sigcontext = struct {
 // Define this type if we are doing the whole job,
 //    or if we want this type in particular.
 
-//  In 4.3bsd-net2, leave these undefined to indicate that size_t, etc.
-//     are already defined.
-//  BSD/OS 3.1 and FreeBSD [23].x require the MACHINE_ANSI_H check here.
-//  NetBSD 5 requires the I386_ANSI_H and X86_64_ANSI_H checks here.
-
 // A null pointer constant.
 
 // Structure describing a signal stack.
@@ -1558,7 +1661,7 @@ type Stack_t = struct {
 } /* stack_t.h:31:5 */
 
 // This will define `ucontext_t' and `mcontext_t'.
-// Copyright (C) 1998-2018 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
@@ -1573,11 +1676,11 @@ type Stack_t = struct {
 //
 //    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/>.
 
 // System V/ARM ABI compliant context switching support.
 
-// Copyright (C) 1991-2018 Free Software Foundation, Inc.
+// Copyright (C) 1991-2020 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
@@ -1592,10 +1695,10 @@ type Stack_t = struct {
 //
 //    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 stack_t.  Linux version.
-//    Copyright (C) 1998-2018 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
@@ -1610,7 +1713,7 @@ type Stack_t = struct {
 //
 //    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/>.
 
 type Greg_t = int32 /* ucontext.h:36:13 */
 
@@ -1621,10 +1724,10 @@ type Gregset_t = [18]Greg_t /* ucontext.h:42:16 */
 
 type X_libc_fpstate = struct {
 	Ffpregs [8]struct {
-		_          [0]uint32
-		Fsign1     uint32 /* unsigned sign1: 1, unsigned unused: 15, unsigned sign2: 1, unsigned exponent: 14, unsigned j: 1 */
-		Fmantissa1 uint32 /* unsigned mantissa1: 31 */
-		Fmantissa0 uint32 /* unsigned mantissa0: 32 */
+		F__ccgo_pad1 [0]uint32
+		Fsign1       uint32 /* unsigned sign1: 1, unsigned unused: 15, unsigned sign2: 1, unsigned exponent: 14, unsigned j: 1 */
+		Fmantissa1   uint32 /* unsigned mantissa1: 31 */
+		Fmantissa0   uint32 /* unsigned mantissa0: 32 */
 	}
 	Ffpsr      uint32 /* unsigned fpsr: 32 */
 	Ffpcr      uint32 /* unsigned fpcr: 32 */
@@ -1677,7 +1780,7 @@ type Ucontext_t1 = struct {
 type Ucontext_t = Ucontext_t1 /* ucontext.h:140:5 */
 
 // Define struct sigstack.
-//    Copyright (C) 1998-2018 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
@@ -1692,7 +1795,7 @@ type Ucontext_t = Ucontext_t1 /* ucontext.h:140:5 */
 //
 //    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/>.
 
 // Structure describing a signal stack (obsolete).
 type Sigstack = struct {
@@ -1700,32 +1803,251 @@ type Sigstack = struct {
 	Fss_onstack int32
 } /* struct_sigstack.h:23:1 */
 
-// Data structure for mutex handling.
+// Some of the functions for handling signals in threaded programs must
+//    be defined here.
+// Declaration of common pthread types for all architectures.
+//    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
+//    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/>.
 
-type X__pthread_rwlock_arch_t = struct {
-	F__readers       uint32
-	F__writers       uint32
-	F__wrphase_futex uint32
-	F__writers_futex uint32
-	F__pad3          uint32
-	F__pad4          uint32
-	F__flags         uint8
-	F__shared        uint8
-	F__pad1          uint8
-	F__pad2          uint8
-	F__cur_writer    int32
-} /* pthreadtypes-arch.h:43:1 */
+// For internal mutex and condition variable definitions.
+// Common threading primitives definitions for both POSIX and C11.
+//    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
+//    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/>.
+
+// Arch-specific definitions.  Each architecture must define the following
+//    macros to define the expected sizes of pthread data types:
+//
+//    __SIZEOF_PTHREAD_ATTR_T        - size of pthread_attr_t.
+//    __SIZEOF_PTHREAD_MUTEX_T       - size of pthread_mutex_t.
+//    __SIZEOF_PTHREAD_MUTEXATTR_T   - size of pthread_mutexattr_t.
+//    __SIZEOF_PTHREAD_COND_T        - size of pthread_cond_t.
+//    __SIZEOF_PTHREAD_CONDATTR_T    - size of pthread_condattr_t.
+//    __SIZEOF_PTHREAD_RWLOCK_T      - size of pthread_rwlock_t.
+//    __SIZEOF_PTHREAD_RWLOCKATTR_T  - size of pthread_rwlockattr_t.
+//    __SIZEOF_PTHREAD_BARRIER_T     - size of pthread_barrier_t.
+//    __SIZEOF_PTHREAD_BARRIERATTR_T - size of pthread_barrierattr_t.
+//
+//    The additional macro defines any constraint for the lock alignment
+//    inside the thread structures:
+//
+//    __LOCK_ALIGNMENT - for internal lock/futex usage.
+//
+//    Same idea but for the once locking primitive:
+//
+//    __ONCE_ALIGNMENT - for pthread_once_t/once_flag definition.
+
+// Machine-specific pthread type layouts.  Generic version.
+//    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/>.
+
+// 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
+//    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/>.
 
 // Common definition of pthread_mutex_t.
 
-type X__pthread_internal_slist = struct{ F__next uintptr } /* thread-shared-types.h:88:9 */
+type X__pthread_internal_list = struct {
+	F__prev uintptr
+	F__next uintptr
+} /* thread-shared-types.h:49:9 */
+
+// Some of the functions for handling signals in threaded programs must
+//    be defined here.
+// Declaration of common pthread types for all architectures.
+//    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
+//    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/>.
+
+// For internal mutex and condition variable definitions.
+// Common threading primitives definitions for both POSIX and C11.
+//    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
+//    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/>.
+
+// Arch-specific definitions.  Each architecture must define the following
+//    macros to define the expected sizes of pthread data types:
+//
+//    __SIZEOF_PTHREAD_ATTR_T        - size of pthread_attr_t.
+//    __SIZEOF_PTHREAD_MUTEX_T       - size of pthread_mutex_t.
+//    __SIZEOF_PTHREAD_MUTEXATTR_T   - size of pthread_mutexattr_t.
+//    __SIZEOF_PTHREAD_COND_T        - size of pthread_cond_t.
+//    __SIZEOF_PTHREAD_CONDATTR_T    - size of pthread_condattr_t.
+//    __SIZEOF_PTHREAD_RWLOCK_T      - size of pthread_rwlock_t.
+//    __SIZEOF_PTHREAD_RWLOCKATTR_T  - size of pthread_rwlockattr_t.
+//    __SIZEOF_PTHREAD_BARRIER_T     - size of pthread_barrier_t.
+//    __SIZEOF_PTHREAD_BARRIERATTR_T - size of pthread_barrierattr_t.
+//
+//    The additional macro defines any constraint for the lock alignment
+//    inside the thread structures:
+//
+//    __LOCK_ALIGNMENT - for internal lock/futex usage.
+//
+//    Same idea but for the once locking primitive:
+//
+//    __ONCE_ALIGNMENT - for pthread_once_t/once_flag definition.
+
+// Machine-specific pthread type layouts.  Generic version.
+//    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/>.
+
+// 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
+//    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/>.
 
 // Common definition of pthread_mutex_t.
 
-type X__pthread_slist_t = X__pthread_internal_slist /* thread-shared-types.h:91:3 */
+type X__pthread_list_t = X__pthread_internal_list /* thread-shared-types.h:53:3 */
+
+type X__pthread_internal_slist = struct{ F__next uintptr } /* thread-shared-types.h:55:9 */
 
-// Lock elision support.
-// Mutex __spins initializer used by PTHREAD_MUTEX_INITIALIZER.
+type X__pthread_slist_t = X__pthread_internal_slist /* thread-shared-types.h:58:3 */
+
+// Arch-specific mutex definitions.  A generic implementation is provided
+//    by sysdeps/nptl/bits/struct_mutex.h.  If required, an architecture
+//    can override it by defining:
+//
+//    1. struct __pthread_mutex_s (used on both pthread_mutex_t and mtx_t
+//       definition).  It should contains at least the internal members
+//       defined in the generic version.
+//
+//    2. __LOCK_ALIGNMENT for any extra attribute for internal lock used with
+//       atomic operations.
+//
+//    3. The macro __PTHREAD_MUTEX_INITIALIZER used for static initialization.
+//       It should initialize the mutex internal flag.
+
+// Default mutex implementation 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/>.
+
+// Generic struct for both POSIX and C11 mutexes.  New ports are expected
+//    to use the default layout, however architecture can redefine it to
+//    add arch-specific extension (such as lock-elision).  The struct have
+//    a size of 32 bytes on LP32 and 40 bytes on LP64 architectures.
 
 type X__pthread_mutex_s = struct {
 	F__lock   int32
@@ -1734,7 +2056,73 @@ type X__pthread_mutex_s = struct {
 	F__kind   int32
 	F__nusers uint32
 	F__20     struct{ F__spins int32 }
-} /* thread-shared-types.h:118:1 */
+} /* struct_mutex.h:27:1 */
+
+// Arch-sepecific read-write lock definitions.  A generic implementation is
+//    provided by struct_rwlock.h.  If required, an architecture can override it
+//    by defining:
+//
+//    1. struct __pthread_rwlock_arch_t (used on pthread_rwlock_t definition).
+//       It should contain at least the internal members defined in the
+//       generic version.
+//
+//    2. The macro __PTHREAD_RWLOCK_INITIALIZER used for static initialization.
+//       It should initialize the rwlock internal type.
+
+// Default read-write lock implementation 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/>.
+
+// Endian macros for string.h functions
+//    Copyright (C) 1992-2020 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/>.
+
+// Generic struct for both POSIX read-write lock.  New ports are expected
+//    to use the default layout, however archictetures can redefine it to add
+//    arch-specific extensions (such as lock-elision).  The struct have a size
+//    of 32 bytes on both LP32 and LP64 architectures.
+
+type X__pthread_rwlock_arch_t = struct {
+	F__readers       uint32
+	F__writers       uint32
+	F__wrphase_futex uint32
+	F__writers_futex uint32
+	F__pad3          uint32
+	F__pad4          uint32
+	F__flags         uint8
+	F__shared        uint8
+	F__pad1          uint8
+	F__pad2          uint8
+	F__cur_writer    int32
+} /* struct_rwlock.h:29:1 */
 
 // Common definition of pthread_cond_t.
 
@@ -1746,7 +2134,7 @@ type X__pthread_cond_s = struct {
 	F__g1_orig_size uint32
 	F__wrefs        uint32
 	F__g_signals    [2]uint32
-} /* thread-shared-types.h:171:1 */
+} /* thread-shared-types.h:92:1 */
 
 // Thread identifiers.  The structure of the attribute type is not
 //    exposed on purpose.
@@ -1755,15 +2143,15 @@ type Pthread_t = uint32 /* pthreadtypes.h:27:27 */
 // Data structures for mutex handling.  The structure of the attribute
 //    type is not exposed on purpose.
 type Pthread_mutexattr_t = struct {
-	_       [0]uint32
-	F__size [4]int8
+	F__ccgo_pad1 [0]uint32
+	F__size      [4]uint8
 } /* pthreadtypes.h:36:3 */
 
 // Data structure for condition variable handling.  The structure of
 //    the attribute type is not exposed on purpose.
 type Pthread_condattr_t = struct {
-	_       [0]uint32
-	F__size [4]int8
+	F__ccgo_pad1 [0]uint32
+	F__size      [4]uint8
 } /* pthreadtypes.h:45:3 */
 
 // Keys for thread-specific data
@@ -1781,8 +2169,8 @@ type Pthread_cond_t = struct{ F__data X__pthread_cond_s } /* pthreadtypes.h:80:3
 type Pthread_rwlock_t = struct{ F__data X__pthread_rwlock_arch_t } /* pthreadtypes.h:91:3 */
 
 type Pthread_rwlockattr_t = struct {
-	_       [0]uint32
-	F__size [8]int8
+	F__ccgo_pad1 [0]uint32
+	F__size      [8]uint8
 } /* pthreadtypes.h:97:3 */
 
 // POSIX spinlock data type.
@@ -1791,13 +2179,32 @@ type Pthread_spinlock_t = int32 /* pthreadtypes.h:103:22 */
 // POSIX barriers data type.  The structure of the type is
 //    deliberately not exposed.
 type Pthread_barrier_t = struct {
-	_       [0]uint32
-	F__size [20]int8
+	F__ccgo_pad1 [0]uint32
+	F__size      [20]uint8
 } /* pthreadtypes.h:112:3 */
 
 type Pthread_barrierattr_t = struct {
-	_       [0]uint32
-	F__size [4]int8
+	F__ccgo_pad1 [0]uint32
+	F__size      [4]uint8
 } /* pthreadtypes.h:118:3 */
 
-var _ int8 /* gen.c:2:13: */
+// System-specific extensions.
+// System-specific extensions of <signal.h>, Linux version.
+//    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
+//    <https://www.gnu.org/licenses/>.
+
+var _ uint8 /* gen.c:2:13: */