diff --git a/sysdeps/unix/sysv/linux/Makefile b/sysdeps/unix/sysv/linux/Makefile
index ff4535cdca..edb1d29bf3 100644
--- a/sysdeps/unix/sysv/linux/Makefile
+++ b/sysdeps/unix/sysv/linux/Makefile
@@ -43,7 +43,7 @@ sysdep_headers += sys/mount.h sys/acct.h sys/sysctl.h \
 		  bits/siginfo-arch.h bits/siginfo-consts-arch.h \
 		  bits/procfs.h bits/procfs-id.h bits/procfs-extra.h \
 		  bits/procfs-prregset.h bits/mman-map-flags-generic.h \
-		  bits/msq-pad.h
+		  bits/msq-pad.h bits/sem-pad.h
 
 tests += tst-clone tst-clone2 tst-clone3 tst-fanotify tst-personality \
 	 tst-quota tst-sync_file_range tst-sysconf-iov_max tst-ttyname \
diff --git a/sysdeps/unix/sysv/linux/bits/sem-pad.h b/sysdeps/unix/sysv/linux/bits/sem-pad.h
new file mode 100644
index 0000000000..77979976bd
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/bits/sem-pad.h
@@ -0,0 +1,31 @@
+/* Define where padding goes in struct semid_ds.  Generic version.
+   Copyright (C) 2018 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 _SYS_SEM_H
+# error "Never use <bits/sem-pad.h> directly; include <sys/sem.h> instead."
+#endif
+
+#include <bits/wordsize.h>
+
+/* On most architectures, padding goes after time fields for 32-bit
+   systems and is omitted for 64-bit systems.  Some architectures pad
+   before time fields instead, or omit padding despite being 32-bit,
+   or include it despite being 64-bit.  */
+
+#define __SEM_PAD_AFTER_TIME (__WORDSIZE == 32)
+#define __SEM_PAD_BEFORE_TIME 0
diff --git a/sysdeps/unix/sysv/linux/bits/sem.h b/sysdeps/unix/sysv/linux/bits/sem.h
index bf6d797080..ad682156b5 100644
--- a/sysdeps/unix/sysv/linux/bits/sem.h
+++ b/sysdeps/unix/sysv/linux/bits/sem.h
@@ -20,7 +20,7 @@
 #endif
 
 #include <sys/types.h>
-#include <bits/wordsize.h>
+#include <bits/sem-pad.h>
 
 /* Flags for `semop'.  */
 #define SEM_UNDO	0x1000		/* undo the operation on exit */
@@ -35,21 +35,26 @@
 #define SETALL		17		/* set all semval's */
 
 
+#if __SEM_PAD_BEFORE_TIME
+# define __SEM_PAD_TIME(NAME, RES)				\
+  unsigned long int __glibc_reserved ## RES; __time_t NAME
+#elif __SEM_PAD_AFTER_TIME
+# define __SEM_PAD_TIME(NAME, RES)				\
+  __time_t NAME; unsigned long int __glibc_reserved ## RES
+#else
+# define __SEM_PAD_TIME(NAME, RES)		\
+  __time_t NAME
+#endif
+
 /* Data structure describing a set of semaphores.  */
 struct semid_ds
 {
   struct ipc_perm sem_perm;		/* operation permission struct */
-  __time_t sem_otime;			/* last semop() time */
-#if __WORDSIZE == 32
-  unsigned long int __glibc_reserved1;
-#endif
-  __time_t sem_ctime;			/* last time changed by semctl() */
-#if __WORDSIZE == 32
-  unsigned long int __glibc_reserved2;
-#endif
-  unsigned long int sem_nsems;		/* number of semaphores in set */
-  unsigned long int __glibc_reserved3;
-  unsigned long int __glibc_reserved4;
+  __SEM_PAD_TIME (sem_otime, 1);	/* last semop() time */
+  __SEM_PAD_TIME (sem_ctime, 2);	/* last time changed by semctl() */
+  __syscall_ulong_t sem_nsems;		/* number of semaphores in set */
+  __syscall_ulong_t __glibc_reserved3;
+  __syscall_ulong_t __glibc_reserved4;
 };
 
 /* The user should define a union like the following to use it for arguments
diff --git a/sysdeps/unix/sysv/linux/hppa/bits/sem-pad.h b/sysdeps/unix/sysv/linux/hppa/bits/sem-pad.h
new file mode 100644
index 0000000000..a938c2c92b
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/hppa/bits/sem-pad.h
@@ -0,0 +1,26 @@
+/* Define where padding goes in struct semid_ds.  HPPA version.
+   Copyright (C) 2018 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 _SYS_SEM_H
+# error "Never use <bits/sem-pad.h> directly; include <sys/sem.h> instead."
+#endif
+
+#include <bits/wordsize.h>
+
+#define __SEM_PAD_AFTER_TIME 0
+#define __SEM_PAD_BEFORE_TIME (__WORDSIZE == 32)
diff --git a/sysdeps/unix/sysv/linux/hppa/bits/sem.h b/sysdeps/unix/sysv/linux/hppa/bits/sem.h
deleted file mode 100644
index 12b849ae79..0000000000
--- a/sysdeps/unix/sysv/linux/hppa/bits/sem.h
+++ /dev/null
@@ -1,92 +0,0 @@
-/* Copyright (C) 1995-2018 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 _SYS_SEM_H
-# error "Never include <bits/sem.h> directly; use <sys/sem.h> instead."
-#endif
-
-#include <sys/types.h>
-#include <bits/wordsize.h>
-
-/* Flags for `semop'.  */
-#define SEM_UNDO	0x1000		/* undo the operation on exit */
-
-/* Commands for `semctl'.  */
-#define GETPID		11		/* get sempid */
-#define GETVAL		12		/* get semval */
-#define GETALL		13		/* get all semval's */
-#define GETNCNT		14		/* get semncnt */
-#define GETZCNT		15		/* get semzcnt */
-#define SETVAL		16		/* set semval */
-#define SETALL		17		/* set all semval's */
-
-
-/* Data structure describing a set of semaphores.  */
-struct semid_ds
-{
-  struct ipc_perm sem_perm;		/* operation permission struct */
-#if __WORDSIZE == 32
-  unsigned int __pad1;
-#endif
-  __time_t sem_otime;			/* last semop() time */
-#if __WORDSIZE == 32
-  unsigned int __pad2;
-#endif
-  __time_t sem_ctime;			/* last time changed by semctl() */
-  unsigned long int sem_nsems;		/* number of semaphores in set */
-  unsigned long int __glibc_reserved1;
-  unsigned long int __glibc_reserved2;
-};
-
-/* The user should define a union like the following to use it for arguments
-   for `semctl'.
-
-   union semun
-   {
-     int val;				<= value for SETVAL
-     struct semid_ds *buf;		<= buffer for IPC_STAT & IPC_SET
-     unsigned short int *array;		<= array for GETALL & SETALL
-     struct seminfo *__buf;		<= buffer for IPC_INFO
-   };
-
-   Previous versions of this file used to define this union but this is
-   incorrect.  One can test the macro _SEM_SEMUN_UNDEFINED to see whether
-   one must define the union or not.  */
-#define _SEM_SEMUN_UNDEFINED	1
-
-#ifdef __USE_MISC
-
-/* ipcs ctl cmds */
-# define SEM_STAT 18
-# define SEM_INFO 19
-# define SEM_STAT_ANY 20
-
-struct  seminfo
-{
-  int semmap;
-  int semmni;
-  int semmns;
-  int semmnu;
-  int semmsl;
-  int semopm;
-  int semume;
-  int semusz;
-  int semvmx;
-  int semaem;
-};
-
-#endif /* __USE_MISC */
diff --git a/sysdeps/unix/sysv/linux/mips/bits/sem-pad.h b/sysdeps/unix/sysv/linux/mips/bits/sem-pad.h
new file mode 100644
index 0000000000..61f27cbc8f
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/mips/bits/sem-pad.h
@@ -0,0 +1,24 @@
+/* Define where padding goes in struct semid_ds.  MIPS version.
+   Copyright (C) 2018 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 _SYS_SEM_H
+# error "Never use <bits/sem-pad.h> directly; include <sys/sem.h> instead."
+#endif
+
+#define __SEM_PAD_AFTER_TIME 0
+#define __SEM_PAD_BEFORE_TIME 0
diff --git a/sysdeps/unix/sysv/linux/mips/bits/sem.h b/sysdeps/unix/sysv/linux/mips/bits/sem.h
deleted file mode 100644
index d218cf4f92..0000000000
--- a/sysdeps/unix/sysv/linux/mips/bits/sem.h
+++ /dev/null
@@ -1,85 +0,0 @@
-/* Copyright (C) 1995-2018 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 _SYS_SEM_H
-# error "Never include <bits/sem.h> directly; use <sys/sem.h> instead."
-#endif
-
-#include <sys/types.h>
-
-/* Flags for `semop'.  */
-#define SEM_UNDO	0x1000		/* undo the operation on exit */
-
-/* Commands for `semctl'.  */
-#define GETPID		11		/* get sempid */
-#define GETVAL		12		/* get semval */
-#define GETALL		13		/* get all semval's */
-#define GETNCNT		14		/* get semncnt */
-#define GETZCNT		15		/* get semzcnt */
-#define SETVAL		16		/* set semval */
-#define SETALL		17		/* set all semval's */
-
-
-/* Data structure describing a set of semaphores.  */
-struct semid_ds
-{
-  struct ipc_perm sem_perm;		/* operation permission struct */
-  __time_t sem_otime;			/* last semop() time */
-  __time_t sem_ctime;			/* last time changed by semctl() */
-  unsigned long int sem_nsems;		/* number of semaphores in set */
-  unsigned long int __glibc_reserved1;
-  unsigned long int __glibc_reserved2;
-};
-
-/* The user should define a union like the following to use it for arguments
-   for `semctl'.
-
-   union semun
-   {
-     int val;				<= value for SETVAL
-     struct semid_ds *buf;		<= buffer for IPC_STAT & IPC_SET
-     unsigned short int *array;		<= array for GETALL & SETALL
-     struct seminfo *__buf;		<= buffer for IPC_INFO
-   };
-
-   Previous versions of this file used to define this union but this is
-   incorrect.  One can test the macro _SEM_SEMUN_UNDEFINED to see whether
-   one must define the union or not.  */
-#define _SEM_SEMUN_UNDEFINED	1
-
-#ifdef __USE_MISC
-
-/* ipcs ctl cmds */
-# define SEM_STAT 18
-# define SEM_INFO 19
-# define SEM_STAT_ANY 20
-
-struct  seminfo
-{
-  int semmap;
-  int semmni;
-  int semmns;
-  int semmnu;
-  int semmsl;
-  int semopm;
-  int semume;
-  int semusz;
-  int semvmx;
-  int semaem;
-};
-
-#endif /* __USE_MISC */
diff --git a/sysdeps/unix/sysv/linux/powerpc/bits/sem-pad.h b/sysdeps/unix/sysv/linux/powerpc/bits/sem-pad.h
new file mode 100644
index 0000000000..d4c9a93956
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/powerpc/bits/sem-pad.h
@@ -0,0 +1,26 @@
+/* Define where padding goes in struct semid_ds.  PowerPC version.
+   Copyright (C) 2018 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 _SYS_SEM_H
+# error "Never use <bits/sem-pad.h> directly; include <sys/sem.h> instead."
+#endif
+
+#include <bits/wordsize.h>
+
+#define __SEM_PAD_AFTER_TIME 0
+#define __SEM_PAD_BEFORE_TIME (__WORDSIZE == 32)
diff --git a/sysdeps/unix/sysv/linux/powerpc/bits/sem.h b/sysdeps/unix/sysv/linux/powerpc/bits/sem.h
deleted file mode 100644
index 27b026cf61..0000000000
--- a/sysdeps/unix/sysv/linux/powerpc/bits/sem.h
+++ /dev/null
@@ -1,91 +0,0 @@
-/* Copyright (C) 1995-2018 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 _SYS_SEM_H
-# error "Never include <bits/sem.h> directly; use <sys/sem.h> instead."
-#endif
-
-#include <sys/types.h>
-
-/* Flags for `semop'.  */
-#define SEM_UNDO       0x1000          /* undo the operation on exit */
-
-/* Commands for `semctl'.  */
-#define GETPID         11              /* get sempid */
-#define GETVAL         12              /* get semval */
-#define GETALL         13              /* get all semval's */
-#define GETNCNT                14              /* get semncnt */
-#define GETZCNT                15              /* get semzcnt */
-#define SETVAL         16              /* set semval */
-#define SETALL         17              /* set all semval's */
-
-
-/* Data structure describing a set of semaphores.  */
-struct semid_ds
-{
-  struct ipc_perm sem_perm;            /* operation permission struct */
-#if __WORDSIZE == 32
-  unsigned int __glibc_reserved1;
-#endif
-  __time_t sem_otime;                  /* last semop() time */
-#if __WORDSIZE == 32
-  unsigned int __glibc_reserved2;
-#endif
-  __time_t sem_ctime;                  /* last time changed by semctl() */
-  unsigned long int sem_nsems;         /* number of semaphores in set */
-  unsigned long __glibc_reserved3;
-  unsigned long __glibc_reserved4;
-};
-
-/* The user should define a union like the following to use it for arguments
-   for `semctl'.
-
-   union semun
-   {
-     int val;                          <= value for SETVAL
-     struct semid_ds *buf;             <= buffer for IPC_STAT & IPC_SET
-     unsigned short int *array;                <= array for GETALL & SETALL
-     struct seminfo *__buf;            <= buffer for IPC_INFO
-   };
-
-   Previous versions of this file used to define this union but this is
-   incorrect.  One can test the macro _SEM_SEMUN_UNDEFINED to see whether
-   one must define the union or not.  */
-#define _SEM_SEMUN_UNDEFINED   1
-
-#ifdef __USE_MISC
-
-/* ipcs ctl cmds */
-# define SEM_STAT 18
-# define SEM_INFO 19
-# define SEM_STAT_ANY 20
-
-struct  seminfo
-{
-  int semmap;
-  int semmni;
-  int semmns;
-  int semmnu;
-  int semmsl;
-  int semopm;
-  int semume;
-  int semusz;
-  int semvmx;
-  int semaem;
-};
-
-#endif /* __USE_MISC */
diff --git a/sysdeps/unix/sysv/linux/sparc/bits/sem-pad.h b/sysdeps/unix/sysv/linux/sparc/bits/sem-pad.h
new file mode 100644
index 0000000000..b85f6b70a2
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/sparc/bits/sem-pad.h
@@ -0,0 +1,26 @@
+/* Define where padding goes in struct semid_ds.  SPARC version.
+   Copyright (C) 2018 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 _SYS_SEM_H
+# error "Never use <bits/sem-pad.h> directly; include <sys/sem.h> instead."
+#endif
+
+#include <bits/wordsize.h>
+
+#define __SEM_PAD_AFTER_TIME 0
+#define __SEM_PAD_BEFORE_TIME (__WORDSIZE == 32)
diff --git a/sysdeps/unix/sysv/linux/sparc/bits/sem.h b/sysdeps/unix/sysv/linux/sparc/bits/sem.h
deleted file mode 100644
index f5b2654eec..0000000000
--- a/sysdeps/unix/sysv/linux/sparc/bits/sem.h
+++ /dev/null
@@ -1,92 +0,0 @@
-/* Copyright (C) 1995-2018 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 _SYS_SEM_H
-# error "Never include <bits/sem.h> directly; use <sys/sem.h> instead."
-#endif
-
-#include <sys/types.h>
-#include <bits/wordsize.h>
-
-/* Flags for `semop'.  */
-#define SEM_UNDO	0x1000		/* undo the operation on exit */
-
-/* Commands for `semctl'.  */
-#define GETPID		11		/* get sempid */
-#define GETVAL		12		/* get semval */
-#define GETALL		13		/* get all semval's */
-#define GETNCNT		14		/* get semncnt */
-#define GETZCNT		15		/* get semzcnt */
-#define SETVAL		16		/* set semval */
-#define SETALL		17		/* set all semval's */
-
-
-/* Data structure describing a set of semaphores.  */
-struct semid_ds
-{
-  struct ipc_perm sem_perm;		/* operation permission struct */
-#if __WORDSIZE == 32
-  unsigned int __pad1;
-#endif
-  __time_t sem_otime;			/* last semop() time */
-#if __WORDSIZE == 32
-  unsigned int __pad2;
-#endif
-  __time_t sem_ctime;			/* last time changed by semctl() */
-  unsigned long int sem_nsems;		/* number of semaphores in set */
-  unsigned long int __glibc_reserved1;
-  unsigned long int __glibc_reserved2;
-};
-
-/* The user should define a union like the following to use it for arguments
-   for `semctl'.
-
-   union semun
-   {
-     int val;				<= value for SETVAL
-     struct semid_ds *buf;		<= buffer for IPC_STAT & IPC_SET
-     unsigned short int *array;		<= array for GETALL & SETALL
-     struct seminfo *__buf;		<= buffer for IPC_INFO
-   };
-
-   Previous versions of this file used to define this union but this is
-   incorrect.  One can test the macro _SEM_SEMUN_UNDEFINED to see whether
-   one must define the union or not.  */
-#define _SEM_SEMUN_UNDEFINED	1
-
-#ifdef __USE_MISC
-
-/* ipcs ctl cmds */
-# define SEM_STAT 18
-# define SEM_INFO 19
-# define SEM_STAT_ANY 20
-
-struct  seminfo
-{
-  int semmap;
-  int semmni;
-  int semmns;
-  int semmnu;
-  int semmsl;
-  int semopm;
-  int semume;
-  int semusz;
-  int semvmx;
-  int semaem;
-};
-
-#endif /* __USE_MISC */
diff --git a/sysdeps/unix/sysv/linux/x86/bits/sem-pad.h b/sysdeps/unix/sysv/linux/x86/bits/sem-pad.h
new file mode 100644
index 0000000000..625f8ed21e
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/x86/bits/sem-pad.h
@@ -0,0 +1,24 @@
+/* Define where padding goes in struct semid_ds.  x86 version.
+   Copyright (C) 2018 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 _SYS_SEM_H
+# error "Never use <bits/sem-pad.h> directly; include <sys/sem.h> instead."
+#endif
+
+#define __SEM_PAD_AFTER_TIME 1
+#define __SEM_PAD_BEFORE_TIME 0
diff --git a/sysdeps/unix/sysv/linux/x86/bits/sem.h b/sysdeps/unix/sysv/linux/x86/bits/sem.h
deleted file mode 100644
index 6771966a06..0000000000
--- a/sysdeps/unix/sysv/linux/x86/bits/sem.h
+++ /dev/null
@@ -1,87 +0,0 @@
-/* Copyright (C) 2002-2018 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 _SYS_SEM_H
-# error "Never include <bits/sem.h> directly; use <sys/sem.h> instead."
-#endif
-
-#include <sys/types.h>
-
-/* Flags for `semop'.  */
-#define SEM_UNDO	0x1000		/* undo the operation on exit */
-
-/* Commands for `semctl'.  */
-#define GETPID		11		/* get sempid */
-#define GETVAL		12		/* get semval */
-#define GETALL		13		/* get all semval's */
-#define GETNCNT		14		/* get semncnt */
-#define GETZCNT		15		/* get semzcnt */
-#define SETVAL		16		/* set semval */
-#define SETALL		17		/* set all semval's */
-
-
-/* Data structure describing a set of semaphores.  */
-struct semid_ds
-{
-  struct ipc_perm sem_perm;		/* operation permission struct */
-  __time_t sem_otime;			/* last semop() time */
-  __syscall_ulong_t __glibc_reserved1;
-  __time_t sem_ctime;			/* last time changed by semctl() */
-  __syscall_ulong_t __glibc_reserved2;
-  __syscall_ulong_t sem_nsems;		/* number of semaphores in set */
-  __syscall_ulong_t __glibc_reserved3;
-  __syscall_ulong_t __glibc_reserved4;
-};
-
-/* The user should define a union like the following to use it for arguments
-   for `semctl'.
-
-   union semun
-   {
-     int val;				<= value for SETVAL
-     struct semid_ds *buf;		<= buffer for IPC_STAT & IPC_SET
-     unsigned short int *array;		<= array for GETALL & SETALL
-     struct seminfo *__buf;		<= buffer for IPC_INFO
-   };
-
-   Previous versions of this file used to define this union but this is
-   incorrect.  One can test the macro _SEM_SEMUN_UNDEFINED to see whether
-   one must define the union or not.  */
-#define _SEM_SEMUN_UNDEFINED	1
-
-#ifdef __USE_MISC
-
-/* ipcs ctl cmds */
-# define SEM_STAT 18
-# define SEM_INFO 19
-# define SEM_STAT_ANY 20
-
-struct  seminfo
-{
-  int semmap;
-  int semmni;
-  int semmns;
-  int semmnu;
-  int semmsl;
-  int semopm;
-  int semume;
-  int semusz;
-  int semvmx;
-  int semaem;
-};
-
-#endif /* __USE_MISC */
