4 files changed, 74 insertions, 5 deletions
diff --git a/include/sys/auxv.h b/include/sys/auxv.h
new file mode 100644
index 000000000..b07026457
--- /dev/null
+++ b/include/sys/auxv.h
@@ -0,0 +1,34 @@
+/* Copyright (C) 2022 uClibc-ng
+   This file is part of the uClibc-ng 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 _SYS_AUXV_H
+#define _SYS_AUXV_H 1
+
+#include <features.h>
+#include <elf.h>
+#include <bits/hwcap.h>
+
+__BEGIN_DECLS
+
+/* Return the value associated with an Elf*_auxv_t type from the auxv list
+   passed to the program on startup.  If TYPE was not present in the auxv
+   list, returns zero and sets errno to ENOENT.  */
+extern unsigned long int getauxval (unsigned long int __type) __THROW;
+
+__END_DECLS
+
+#endif /* sys/auxv.h */
diff --git a/include/sys/cdefs.h b/include/sys/cdefs.h
index a4359a05c..5c4daebcd 100644
--- a/include/sys/cdefs.h
+++ b/include/sys/cdefs.h
@@ -330,6 +330,17 @@
 # endif
 #endif
 
+/* Undefine (also defined in libc-symbols.h).  */
+#undef __attribute_copy__
+#if __GNUC_PREREQ (9, 0)
+/* Copies attributes from the declaration or type referenced by
+   the argument.  */
+# define __attribute_copy__(arg) __attribute__ ((__copy__ (arg)))
+#else
+# define __attribute_copy__(arg)
+#endif
+
+
 /* GCC 4.3 and above allow passing all anonymous arguments of an
    __extern_always_inline function to some other vararg function.  */
 #if __GNUC_PREREQ (4,3)
diff --git a/include/sys/resource.h b/include/sys/resource.h
index 17167ed99..a5c69d84e 100644
--- a/include/sys/resource.h
+++ b/include/sys/resource.h
@@ -101,6 +101,29 @@ extern int setpriority (__priority_which_t __which, id_t __who, int __prio)
      __THROW;
 libc_hidden_proto(setpriority)
 
+#ifdef __USE_GNU
+/* Modify and return resource limits of a process atomically.  */
+# ifndef __USE_FILE_OFFSET64
+extern int prlimit (__pid_t __pid, enum __rlimit_resource __resource,
+		    const struct rlimit *__new_limit,
+		    struct rlimit *__old_limit) __THROW;
+# else
+#  ifdef __REDIRECT_NTH
+extern int __REDIRECT_NTH (prlimit, (__pid_t __pid,
+				     enum __rlimit_resource __resource,
+				     const struct rlimit *__new_limit,
+				     struct rlimit *__old_limit), prlimit64);
+#  else
+#   define prlimit prlimit64
+#  endif
+# endif
+# ifdef __USE_LARGEFILE64
+extern int prlimit64 (__pid_t __pid, enum __rlimit_resource __resource,
+		      const struct rlimit64 *__new_limit,
+		      struct rlimit64 *__old_limit) __THROW;
+# endif
+#endif
+
 __END_DECLS
 
 #endif	/* sys/resource.h  */
diff --git a/include/sys/stat.h b/include/sys/stat.h
index b6480bf97..2dca6c552 100644
--- a/include/sys/stat.h
+++ b/include/sys/stat.h
@@ -117,7 +117,8 @@ __BEGIN_DECLS
 # ifdef __S_IFLNK
 #  define S_IFLNK	__S_IFLNK
 # endif
-# if (defined __USE_BSD || defined __USE_MISC || defined __USE_UNIX98) \
+# if (defined __USE_BSD || defined __USE_MISC || defined __USE_UNIX98 \
+      || defined __USE_XOPEN2K) \
      && defined __S_IFSOCK
 #  define S_IFSOCK	__S_IFSOCK
 # endif
@@ -142,7 +143,7 @@ __BEGIN_DECLS
 # define S_ISLNK(mode)  0
 #endif
 
-#if (defined __USE_BSD || defined __USE_UNIX98) \
+#if (defined __USE_BSD || defined __USE_UNIX98 || defined __USE_XOPEN2K) \
     && defined __S_IFSOCK
 # define S_ISSOCK(mode) __S_ISTYPE((mode), __S_IFSOCK)
 #endif
@@ -301,7 +302,7 @@ extern int lchmod (const char *__file, __mode_t __mode)
 #endif
 
 /* Set file access permissions of the file FD is open on to MODE.  */
-#if defined __USE_BSD || defined __USE_XOPEN_EXTENDED
+#if defined __USE_BSD || defined __USE_XOPEN_EXTENDED || defined __USE_XOPEN2K
 extern int fchmod (int __fd, __mode_t __mode) __THROW;
 #endif
 
@@ -370,7 +371,7 @@ extern int mkfifo (const char *__path, __mode_t __mode)
 extern int mkfifoat (int __fd, const char *__path, __mode_t __mode)
      __THROW __nonnull ((2));
 #endif
-
+
 #ifdef __USE_ATFILE
 /* Set file access and modification times relative to directory file
    descriptor.  */
@@ -385,7 +386,7 @@ libc_hidden_proto(utimensat)
 /* Set file access and modification times of the file associated with FD.  */
 extern int futimens (int __fd, const struct timespec __times[2]) __THROW;
 #endif
-
+
 /* on uClibc we have unversioned struct stat and mknod.
  * bits/stat.h is filled with wrong info, so we undo it here.  */
 #undef _STAT_VER