doc: Update for glibc 2.32.

* doc/glibc-functions/__libc_single_threaded.texi: New file.
* doc/glibc-functions/pthread_attr_getsigmask_np.texi: New file.
* doc/glibc-functions/pthread_attr_setsigmask_np.texi: New file.
* doc/glibc-functions/sigabbrev_np.texi: New file.
* doc/glibc-functions/sigdescr_np.texi: New file.
* doc/glibc-functions/strerrordesc_np.texi: New file.
* doc/glibc-functions/strerrorname_np.texi: New file.
* doc/gnulib.texi: Include them.
(Glibc sys/single_threaded.h): New section.
* doc/pastposix-functions/h_errno.texi: Update.
* doc/posix-functions/*.texi: Likewise.
* doc/glibc-functions/*.texi: Likewise.

10 files changed, 171 insertions, 3 deletions

diff --git a/doc/glibc-functions/__libc_single_threaded.texi b/doc/glibc-functions/__libc_single_threaded.texi
new file mode 100644
index 0000000000..45501e323f
--- /dev/null
+++ b/doc/glibc-functions/__libc_single_threaded.texi
@@ -0,0 +1,24 @@
+@node __libc_single_threaded
+@subsection @code{__libc_single_threaded}
+@findex __libc_single_threaded
+
+Documentation:@*
+@ifinfo
+@ref{Single Threaded,,Detecting Single-Threaded Execution,libc}.
+@end ifinfo
+@ifnotinfo
+@url{https://www.gnu.org/software/libc/manual/html_node/Single_002dThreaded.html}.
+@end ifnotinfo
+
+Gnulib module: ---
+
+Portability problems fixed by Gnulib:
+@itemize
+@end itemize
+
+Portability problems not fixed by Gnulib:
+@itemize
+@item
+This variable is missing on all non-glibc platforms:
+glibc 2.31, Mac OS X 10.13, FreeBSD 6.4, NetBSD 9.0, OpenBSD 3.8, Minix 3.1.8, AIX 7.1, HP-UX 11.31, IRIX 6.5, Solaris 11.4, Cygwin 2.9, mingw, MSVC 14, Android 9.0.
+@end itemize
diff --git a/doc/glibc-functions/getrandom.texi b/doc/glibc-functions/getrandom.texi
index 2c95fe3561..f8ba845428 100644
--- a/doc/glibc-functions/getrandom.texi
+++ b/doc/glibc-functions/getrandom.texi
@@ -31,7 +31,7 @@ Portability problems not fixed by Gnulib:
 @itemize
 @item
 The @code{GRND_INSECURE} flag is missing on some platforms:
-glibc 2.31, macOS 10.15, GNU/kFreeBSD, FreeBSD 12.0, OpenBSD 6.5,
+glibc 2.32, macOS 10.15, GNU/kFreeBSD, FreeBSD 12.0, OpenBSD 6.5,
 Minix 3.3, Haiku.
 
 @item
diff --git a/doc/glibc-functions/lchmod.texi b/doc/glibc-functions/lchmod.texi
index 79569258e1..d0ea7b995f 100644
--- a/doc/glibc-functions/lchmod.texi
+++ b/doc/glibc-functions/lchmod.texi
@@ -15,7 +15,7 @@ HP-UX 11.31.
 @item
 This function always fails with @code{errno} set to @code{ENOSYS},
 even when the file is not a symbolic link:
-GNU/Linux with glibc 2.31.
+GNU/Linux with glibc 2.31 (or newer?).
 @end itemize
 
 Portability problems not fixed by Gnulib:
diff --git a/doc/glibc-functions/pthread_attr_getsigmask_np.texi b/doc/glibc-functions/pthread_attr_getsigmask_np.texi
new file mode 100644
index 0000000000..75b73f9b42
--- /dev/null
+++ b/doc/glibc-functions/pthread_attr_getsigmask_np.texi
@@ -0,0 +1,24 @@
+@node pthread_attr_getsigmask_np
+@subsection @code{pthread_attr_getsigmask_np}
+@findex pthread_attr_getsigmask_np
+
+Documentation:@*
+@ifinfo
+@ref{Initial Thread Signal Mask,,Controlling the Initial Signal Mask of a New Thread,libc}.
+@end ifinfo
+@ifnotinfo
+@url{https://www.gnu.org/software/libc/manual/html_node/Initial-Thread-Signal-Mask.html}.
+@end ifnotinfo
+
+Gnulib module: ---
+
+Portability problems fixed by Gnulib:
+@itemize
+@end itemize
+
+Portability problems not fixed by Gnulib:
+@itemize
+@item
+This function is missing on all non-glibc platforms:
+glibc 2.31, Mac OS X 10.13, FreeBSD 6.4, NetBSD 9.0, OpenBSD 3.8, Minix 3.1.8, AIX 7.1, HP-UX 11.31, IRIX 6.5, Solaris 11.4, Cygwin 2.9, mingw, MSVC 14, Android 9.0.
+@end itemize
diff --git a/doc/glibc-functions/pthread_attr_setsigmask_np.texi b/doc/glibc-functions/pthread_attr_setsigmask_np.texi
new file mode 100644
index 0000000000..d819c7ea72
--- /dev/null
+++ b/doc/glibc-functions/pthread_attr_setsigmask_np.texi
@@ -0,0 +1,24 @@
+@node pthread_attr_setsigmask_np
+@subsection @code{pthread_attr_setsigmask_np}
+@findex pthread_attr_setsigmask_np
+
+Documentation:@*
+@ifinfo
+@ref{Initial Thread Signal Mask,,Controlling the Initial Signal Mask of a New Thread,libc}.
+@end ifinfo
+@ifnotinfo
+@url{https://www.gnu.org/software/libc/manual/html_node/Initial-Thread-Signal-Mask.html}.
+@end ifnotinfo
+
+Gnulib module: ---
+
+Portability problems fixed by Gnulib:
+@itemize
+@end itemize
+
+Portability problems not fixed by Gnulib:
+@itemize
+@item
+This function is missing on all non-glibc platforms:
+glibc 2.31, Mac OS X 10.13, FreeBSD 6.4, NetBSD 9.0, OpenBSD 3.8, Minix 3.1.8, AIX 7.1, HP-UX 11.31, IRIX 6.5, Solaris 11.4, Cygwin 2.9, mingw, MSVC 14, Android 9.0.
+@end itemize
diff --git a/doc/glibc-functions/sigabbrev_np.texi b/doc/glibc-functions/sigabbrev_np.texi
new file mode 100644
index 0000000000..2376dac436
--- /dev/null
+++ b/doc/glibc-functions/sigabbrev_np.texi
@@ -0,0 +1,24 @@
+@node sigabbrev_np
+@subsection @code{sigabbrev_np}
+@findex sigabbrev_np
+
+Documentation:@*
+@ifinfo
+@ref{Signal Messages,,Signal Messages,libc}.
+@end ifinfo
+@ifnotinfo
+@url{https://www.gnu.org/software/libc/manual/html_node/Signal-Messages.html}.
+@end ifnotinfo
+
+Gnulib module: ---
+
+Portability problems fixed by Gnulib:
+@itemize
+@end itemize
+
+Portability problems not fixed by Gnulib:
+@itemize
+@item
+This function is missing on all non-glibc platforms:
+glibc 2.31, Mac OS X 10.13, FreeBSD 6.4, NetBSD 9.0, OpenBSD 3.8, Minix 3.1.8, AIX 7.1, HP-UX 11.31, IRIX 6.5, Solaris 11.4, Cygwin 2.9, mingw, MSVC 14, Android 9.0.
+@end itemize
diff --git a/doc/glibc-functions/sigdescr_np.texi b/doc/glibc-functions/sigdescr_np.texi
new file mode 100644
index 0000000000..44e63c1168
--- /dev/null
+++ b/doc/glibc-functions/sigdescr_np.texi
@@ -0,0 +1,24 @@
+@node sigdescr_np
+@subsection @code{sigdescr_np}
+@findex sigdescr_np
+
+Documentation:@*
+@ifinfo
+@ref{Signal Messages,,Signal Messages,libc}.
+@end ifinfo
+@ifnotinfo
+@url{https://www.gnu.org/software/libc/manual/html_node/Signal-Messages.html}.
+@end ifnotinfo
+
+Gnulib module: ---
+
+Portability problems fixed by Gnulib:
+@itemize
+@end itemize
+
+Portability problems not fixed by Gnulib:
+@itemize
+@item
+This function is missing on all non-glibc platforms:
+glibc 2.31, Mac OS X 10.13, FreeBSD 6.4, NetBSD 9.0, OpenBSD 3.8, Minix 3.1.8, AIX 7.1, HP-UX 11.31, IRIX 6.5, Solaris 11.4, Cygwin 2.9, mingw, MSVC 14, Android 9.0.
+@end itemize
diff --git a/doc/glibc-functions/strerrordesc_np.texi b/doc/glibc-functions/strerrordesc_np.texi
new file mode 100644
index 0000000000..f7fd85971e
--- /dev/null
+++ b/doc/glibc-functions/strerrordesc_np.texi
@@ -0,0 +1,24 @@
+@node strerrordesc_np
+@subsection @code{strerrordesc_np}
+@findex strerrordesc_np
+
+Documentation:@*
+@ifinfo
+@ref{Error Messages,,Error Messages,libc}.
+@end ifinfo
+@ifnotinfo
+@url{https://www.gnu.org/software/libc/manual/html_node/Error-Messages.html}.
+@end ifnotinfo
+
+Gnulib module: ---
+
+Portability problems fixed by Gnulib:
+@itemize
+@end itemize
+
+Portability problems not fixed by Gnulib:
+@itemize
+@item
+This function is missing on all non-glibc platforms:
+glibc 2.31, Mac OS X 10.13, FreeBSD 6.4, NetBSD 9.0, OpenBSD 3.8, Minix 3.1.8, AIX 7.1, HP-UX 11.31, IRIX 6.5, Solaris 11.4, Cygwin 2.9, mingw, MSVC 14, Android 9.0.
+@end itemize
diff --git a/doc/glibc-functions/strerrorname_np.texi b/doc/glibc-functions/strerrorname_np.texi
new file mode 100644
index 0000000000..2b0820c367
--- /dev/null
+++ b/doc/glibc-functions/strerrorname_np.texi
@@ -0,0 +1,24 @@
+@node strerrorname_np
+@subsection @code{strerrorname_np}
+@findex strerrorname_np
+
+Documentation:@*
+@ifinfo
+@ref{Error Messages,,Error Messages,libc}.
+@end ifinfo
+@ifnotinfo
+@url{https://www.gnu.org/software/libc/manual/html_node/Error-Messages.html}.
+@end ifnotinfo
+
+Gnulib module: ---
+
+Portability problems fixed by Gnulib:
+@itemize
+@end itemize
+
+Portability problems not fixed by Gnulib:
+@itemize
+@item
+This function is missing on all non-glibc platforms:
+glibc 2.31, Mac OS X 10.13, FreeBSD 6.4, NetBSD 9.0, OpenBSD 3.8, Minix 3.1.8, AIX 7.1, HP-UX 11.31, IRIX 6.5, Solaris 11.4, Cygwin 2.9, mingw, MSVC 14, Android 9.0.
+@end itemize
diff --git a/doc/glibc-functions/sysctl.texi b/doc/glibc-functions/sysctl.texi
index 8924f1e9ab..b7cdc206de 100644
--- a/doc/glibc-functions/sysctl.texi
+++ b/doc/glibc-functions/sysctl.texi
@@ -25,5 +25,5 @@ Portability problems not fixed by Gnulib:
 @itemize
 @item
 This function is missing on some platforms:
-Minix 3.1.8, AIX 5.1, HP-UX 11, Solaris 11.4, Cygwin 2.9, mingw, MSVC 14, Android 9.0.
+glibc 2.32, Minix 3.1.8, AIX 5.1, HP-UX 11, Solaris 11.4, Cygwin 2.9, mingw, MSVC 14, Android 9.0.
 @end itemize