After my patch
<https://sourceware.org/ml/libc-alpha/2018-10/msg00254.html> (pending
review) to move SHMLBA to its own header, the bits/shm.h headers for
architectures using the Linux kernel still vary in a few ways: the use
of __syscall_ulong_t; whether padding for 32-bit systems is present
before or after time fields, or missing altogether (mips, x32);
whether shm_segsz is before or after the time fields; whether, if
after time fields, there is extra padding before shm_segsz.
This patch arranges for a single header to be used. __syscall_ulong_t
is safe to use everywhere, while bits/shm-pad.h is added with new
macros __SHM_PAD_AFTER_TIME, __SHM_PAD_BEFORE_TIME,
__SHM_SEGSZ_AFTER_TIME and __SHM_PAD_BETWEEN_TIME_AND_SEGSZ to
describe the differences.
Tested for x86_64 and x86, and with build-many-glibcs.py.
2018-10-16 Joseph Myers <joseph@codesourcery.com>
* sysdeps/unix/sysv/linux/Makefile (sysdep_headers): Add
bits/shm-pad.h.
* sysdeps/unix/sysv/linux/bits/shm.h: Include <bits/shm-pad.h>.
(shmatt_t): Define as __syscall_ulong_t.
(__SHM_PAD_TIME): New macro, depending on [__SHM_PAD_BEFORE_TIME]
and [__SHM_PAD_AFTER_TIME].
(struct shmid_ds): Define time fields using __SHM_PAD_TIME.
Define shm_segsz and associated padding based on
[__SHM_SEGSZ_AFTER_TIME] and [__SHM_PAD_BETWEEN_TIME_AND_SEGSZ].
Use __syscall_ulong_t instead of unsigned long int.
[__USE_MISC] (struct shminfo): Use __syscall_ulong_t instead of
unsigned long int.
[__USE_MISC] (struct shm_info): Likewise.
* sysdeps/unix/sysv/linux/bits/shm-pad.h: New file.
* sysdeps/unix/sysv/linux/hppa/bits/shm-pad.h: Likewise.
* sysdeps/unix/sysv/linux/mips/bits/shm-pad.h: Likewise.
* sysdeps/unix/sysv/linux/powerpc/bits/shm-pad.h: Likewise.
* sysdeps/unix/sysv/linux/sparc/bits/shm-pad.h: Likewise.
* sysdeps/unix/sysv/linux/x86/bits/shm-pad.h: Likewise.
* sysdeps/unix/sysv/linux/hppa/bits/shm.h: Remove.
* sysdeps/unix/sysv/linux/mips/bits/shm.h: Likewise.
* sysdeps/unix/sysv/linux/powerpc/bits/shm.h: Likewise.
* sysdeps/unix/sysv/linux/sparc/bits/shm.h: Likewise.
* sysdeps/unix/sysv/linux/x86/bits/shm.h: Likewise.
@@ -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/sem-pad.h bits/shmlba.h
+ bits/msq-pad.h bits/sem-pad.h bits/shmlba.h bits/shm-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 \
new file mode 100644
@@ -0,0 +1,37 @@
+/* Define where padding goes in struct shmid_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_SHM_H
+# error "Never use <bits/shm-pad.h> directly; include <sys/shm.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. Furthermore, some
+ architectures place shm_segsz after the time fields rather than
+ before them, with or without padding there. This must match the
+ layout used for struct shmid64_ds in <asm/shmbuf.h>, as glibc does
+ not do layout conversions for this structure. */
+
+#define __SHM_PAD_AFTER_TIME (__WORDSIZE == 32)
+#define __SHM_PAD_BEFORE_TIME 0
+#define __SHM_SEGSZ_AFTER_TIME 0
+#define __SHM_PAD_BETWEEN_TIME_AND_SEGSZ 0
@@ -22,6 +22,7 @@
#include <bits/types.h>
#include <bits/wordsize.h>
#include <bits/shmlba.h>
+#include <bits/shm-pad.h>
/* Permission flag for shmget. */
#define SHM_R 0400 /* or S_IRUGO from <linux/stat.h> */
@@ -40,30 +41,40 @@
__BEGIN_DECLS
/* Type to count number of attaches. */
-typedef unsigned long int shmatt_t;
+typedef __syscall_ulong_t shmatt_t;
+
+#if __SHM_PAD_BEFORE_TIME
+# define __SHM_PAD_TIME(NAME, RES) \
+ unsigned long int __glibc_reserved ## RES; __time_t NAME
+#elif __SHM_PAD_AFTER_TIME
+# define __SHM_PAD_TIME(NAME, RES) \
+ __time_t NAME; unsigned long int __glibc_reserved ## RES
+#else
+# define __SHM_PAD_TIME(NAME, RES) \
+ __time_t NAME
+#endif
/* Data structure describing a shared memory segment. */
struct shmid_ds
{
struct ipc_perm shm_perm; /* operation permission struct */
+#if !__SHM_SEGSZ_AFTER_TIME
size_t shm_segsz; /* size of segment in bytes */
- __time_t shm_atime; /* time of last shmat() */
-#if __WORDSIZE == 32
- unsigned long int __glibc_reserved1;
#endif
- __time_t shm_dtime; /* time of last shmdt() */
-#if __WORDSIZE == 32
- unsigned long int __glibc_reserved2;
+ __SHM_PAD_TIME (shm_atime, 1); /* time of last shmat() */
+ __SHM_PAD_TIME (shm_dtime, 2); /* time of last shmdt() */
+ __SHM_PAD_TIME (shm_ctime, 3); /* time of last change by shmctl() */
+#if __SHM_PAD_BETWEEN_TIME_AND_SEGSZ
+ unsigned long int __glibc_reserved4;
#endif
- __time_t shm_ctime; /* time of last change by shmctl() */
-#if __WORDSIZE == 32
- unsigned long int __glibc_reserved3;
+#if __SHM_SEGSZ_AFTER_TIME
+ size_t shm_segsz; /* size of segment in bytes */
#endif
__pid_t shm_cpid; /* pid of creator */
__pid_t shm_lpid; /* pid of last shmop */
shmatt_t shm_nattch; /* number of current attaches */
- unsigned long int __glibc_reserved4;
- unsigned long int __glibc_reserved5;
+ __syscall_ulong_t __glibc_reserved5;
+ __syscall_ulong_t __glibc_reserved6;
};
#ifdef __USE_MISC
@@ -81,25 +92,25 @@ struct shmid_ds
struct shminfo
{
- unsigned long int shmmax;
- unsigned long int shmmin;
- unsigned long int shmmni;
- unsigned long int shmseg;
- unsigned long int shmall;
- unsigned long int __glibc_reserved1;
- unsigned long int __glibc_reserved2;
- unsigned long int __glibc_reserved3;
- unsigned long int __glibc_reserved4;
+ __syscall_ulong_t shmmax;
+ __syscall_ulong_t shmmin;
+ __syscall_ulong_t shmmni;
+ __syscall_ulong_t shmseg;
+ __syscall_ulong_t shmall;
+ __syscall_ulong_t __glibc_reserved1;
+ __syscall_ulong_t __glibc_reserved2;
+ __syscall_ulong_t __glibc_reserved3;
+ __syscall_ulong_t __glibc_reserved4;
};
struct shm_info
{
int used_ids;
- unsigned long int shm_tot; /* total allocated shm */
- unsigned long int shm_rss; /* total resident shm */
- unsigned long int shm_swp; /* total swapped shm */
- unsigned long int swap_attempts;
- unsigned long int swap_successes;
+ __syscall_ulong_t shm_tot; /* total allocated shm */
+ __syscall_ulong_t shm_rss; /* total resident shm */
+ __syscall_ulong_t shm_swp; /* total swapped shm */
+ __syscall_ulong_t swap_attempts;
+ __syscall_ulong_t swap_successes;
};
#endif /* __USE_MISC */
new file mode 100644
@@ -0,0 +1,28 @@
+/* Define where padding goes in struct shmid_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_SHM_H
+# error "Never use <bits/shm-pad.h> directly; include <sys/shm.h> instead."
+#endif
+
+#include <bits/wordsize.h>
+
+#define __SHM_PAD_AFTER_TIME 0
+#define __SHM_PAD_BEFORE_TIME (__WORDSIZE == 32)
+#define __SHM_SEGSZ_AFTER_TIME 1
+#define __SHM_PAD_BETWEEN_TIME_AND_SEGSZ (__WORDSIZE == 32)
deleted file mode 100644
@@ -1,106 +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_SHM_H
-# error "Never include <bits/shm.h> directly; use <sys/shm.h> instead."
-#endif
-
-#include <bits/types.h>
-#include <bits/wordsize.h>
-#include <bits/shmlba.h>
-
-/* Permission flag for shmget. */
-#define SHM_R 0400 /* or S_IRUGO from <linux/stat.h> */
-#define SHM_W 0200 /* or S_IWUGO from <linux/stat.h> */
-
-/* Flags for `shmat'. */
-#define SHM_RDONLY 010000 /* attach read-only else read-write */
-#define SHM_RND 020000 /* round attach address to SHMLBA */
-#define SHM_REMAP 040000 /* take-over region on attach */
-#define SHM_EXEC 0100000 /* execution access */
-
-/* Commands for `shmctl'. */
-#define SHM_LOCK 11 /* lock segment (root only) */
-#define SHM_UNLOCK 12 /* unlock segment (root only) */
-
-/* Type to count number of attaches. */
-typedef unsigned long int shmatt_t;
-
-/* Data structure describing a shared memory segment. */
-struct shmid_ds
- {
- struct ipc_perm shm_perm; /* operation permission struct */
-#if __WORDSIZE == 32
- unsigned int __pad1;
-#endif
- __time_t shm_atime; /* time of last shmat() */
-#if __WORDSIZE == 32
- unsigned int __pad2;
-#endif
- __time_t shm_dtime; /* time of last shmdt() */
-#if __WORDSIZE == 32
- unsigned int __pad3;
-#endif
- __time_t shm_ctime; /* time of last change by shmctl() */
-#if __WORDSIZE == 32
- unsigned int __pad4;
-#endif
- size_t shm_segsz; /* size of segment in bytes */
- __pid_t shm_cpid; /* pid of creator */
- __pid_t shm_lpid; /* pid of last shmop */
- shmatt_t shm_nattch; /* number of current attaches */
- unsigned long int __glibc_reserved1;
- unsigned long int __glibc_reserved2;
- };
-
-#ifdef __USE_MISC
-
-/* ipcs ctl commands */
-# define SHM_STAT 13
-# define SHM_INFO 14
-# define SHM_STAT_ANY 15
-
-/* shm_mode upper byte flags */
-# define SHM_DEST 01000 /* segment will be destroyed on last detach */
-# define SHM_LOCKED 02000 /* segment will not be swapped */
-# define SHM_HUGETLB 04000 /* segment is mapped via hugetlb */
-# define SHM_NORESERVE 010000 /* don't check for reservations */
-
-struct shminfo
- {
- unsigned long shmmax;
- unsigned long shmmin;
- unsigned long shmmni;
- unsigned long shmseg;
- unsigned long shmall;
- unsigned long __glibc_reserved1;
- unsigned long __glibc_reserved2;
- unsigned long __glibc_reserved3;
- unsigned long __glibc_reserved4;
- };
-
-struct shm_info
- {
- int used_ids;
- unsigned long int shm_tot; /* total allocated shm */
- unsigned long int shm_rss; /* total resident shm */
- unsigned long int shm_swp; /* total swapped shm */
- unsigned long int swap_attempts;
- unsigned long int swap_successes;
- };
-
-#endif /* __USE_MISC */
new file mode 100644
@@ -0,0 +1,26 @@
+/* Define where padding goes in struct shmid_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_SHM_H
+# error "Never use <bits/shm-pad.h> directly; include <sys/shm.h> instead."
+#endif
+
+#define __SHM_PAD_AFTER_TIME 0
+#define __SHM_PAD_BEFORE_TIME 0
+#define __SHM_SEGSZ_AFTER_TIME 0
+#define __SHM_PAD_BETWEEN_TIME_AND_SEGSZ 0
deleted file mode 100644
@@ -1,94 +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_SHM_H
-# error "Never include <bits/shm.h> directly; use <sys/shm.h> instead."
-#endif
-
-#include <bits/types.h>
-#include <bits/shmlba.h>
-
-/* Permission flag for shmget. */
-#define SHM_R 0400 /* or S_IRUGO from <linux/stat.h> */
-#define SHM_W 0200 /* or S_IWUGO from <linux/stat.h> */
-
-/* Flags for `shmat'. */
-#define SHM_RDONLY 010000 /* attach read-only else read-write */
-#define SHM_RND 020000 /* round attach address to SHMLBA */
-#define SHM_REMAP 040000 /* take-over region on attach */
-#define SHM_EXEC 0100000 /* execution access */
-
-/* Commands for `shmctl'. */
-#define SHM_LOCK 11 /* lock segment (root only) */
-#define SHM_UNLOCK 12 /* unlock segment (root only) */
-
-
-/* Type to count number of attaches. */
-typedef unsigned long int shmatt_t;
-
-/* Data structure describing a shared memory segment. */
-struct shmid_ds
- {
- struct ipc_perm shm_perm; /* operation permission struct */
- size_t shm_segsz; /* size of segment in bytes */
- __time_t shm_atime; /* time of last shmat() */
- __time_t shm_dtime; /* time of last shmdt() */
- __time_t shm_ctime; /* time of last change by shmctl() */
- __pid_t shm_cpid; /* pid of creator */
- __pid_t shm_lpid; /* pid of last shmop */
- shmatt_t shm_nattch; /* number of current attaches */
- unsigned long int __glibc_reserved1;
- unsigned long int __glibc_reserved2;
- };
-
-#ifdef __USE_MISC
-
-/* ipcs ctl commands */
-# define SHM_STAT 13
-# define SHM_INFO 14
-# define SHM_STAT_ANY 15
-
-/* shm_mode upper byte flags */
-# define SHM_DEST 01000 /* segment will be destroyed on last detach */
-# define SHM_LOCKED 02000 /* segment will not be swapped */
-# define SHM_HUGETLB 04000 /* segment is mapped via hugetlb */
-# define SHM_NORESERVE 010000 /* don't check for reservations */
-
-struct shminfo
- {
- unsigned long int shmmax;
- unsigned long int shmmin;
- unsigned long int shmmni;
- unsigned long int shmseg;
- unsigned long int shmall;
- unsigned long int __glibc_reserved1;
- unsigned long int __glibc_reserved2;
- unsigned long int __glibc_reserved3;
- unsigned long int __glibc_reserved4;
- };
-
-struct shm_info
- {
- int used_ids;
- unsigned long int shm_tot; /* total allocated shm */
- unsigned long int shm_rss; /* total resident shm */
- unsigned long int shm_swp; /* total swapped shm */
- unsigned long int swap_attempts;
- unsigned long int swap_successes;
- };
-
-#endif /* __USE_MISC */
new file mode 100644
@@ -0,0 +1,28 @@
+/* Define where padding goes in struct shmid_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_SHM_H
+# error "Never use <bits/shm-pad.h> directly; include <sys/shm.h> instead."
+#endif
+
+#include <bits/wordsize.h>
+
+#define __SHM_PAD_AFTER_TIME 0
+#define __SHM_PAD_BEFORE_TIME (__WORDSIZE == 32)
+#define __SHM_SEGSZ_AFTER_TIME 1
+#define __SHM_PAD_BETWEEN_TIME_AND_SEGSZ (__WORDSIZE == 32)
deleted file mode 100644
@@ -1,110 +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_SHM_H
-# error "Never include <bits/shm.h> directly; use <sys/shm.h> instead."
-#endif
-
-#include <bits/types.h>
-#include <bits/shmlba.h>
-
-/* Permission flag for shmget. */
-#define SHM_R 0400 /* or S_IRUGO from <linux/stat.h> */
-#define SHM_W 0200 /* or S_IWUGO from <linux/stat.h> */
-
-/* Flags for `shmat'. */
-#define SHM_RDONLY 010000 /* attach read-only else read-write */
-#define SHM_RND 020000 /* round attach address to SHMLBA */
-#define SHM_REMAP 040000 /* take-over region on attach */
-#define SHM_EXEC 0100000 /* execution access */
-
-/* Commands for `shmctl'. */
-#define SHM_LOCK 11 /* lock segment (root only) */
-#define SHM_UNLOCK 12 /* unlock segment (root only) */
-
-__BEGIN_DECLS
-
-
-/* Type to count number of attaches. */
-typedef unsigned long int shmatt_t;
-
-/* Data structure describing a shared memory segment. */
-struct shmid_ds
- {
- struct ipc_perm shm_perm; /* operation permission struct */
-#if __WORDSIZE == 32
- unsigned int __glibc_reserved1;
-#endif
- __time_t shm_atime; /* time of last shmat() */
-#if __WORDSIZE == 32
- unsigned int __glibc_reserved2;
-#endif
- __time_t shm_dtime; /* time of last shmdt() */
-#if __WORDSIZE == 32
- unsigned int __glibc_reserved3;
-#endif
- __time_t shm_ctime; /* time of last change by shmctl() */
-#if __WORDSIZE == 32
- unsigned int __glibc_reserved4;
-#endif
- size_t shm_segsz; /* size of segment in bytes */
- __pid_t shm_cpid; /* pid of creator */
- __pid_t shm_lpid; /* pid of last shmop */
- shmatt_t shm_nattch; /* number of current attaches */
- unsigned long __glibc_reserved5;
- unsigned long __glibc_reserved6;
- };
-
-#ifdef __USE_MISC
-
-/* ipcs ctl commands */
-# define SHM_STAT 13
-# define SHM_INFO 14
-# define SHM_STAT_ANY 15
-
-/* shm_mode upper byte flags */
-# define SHM_DEST 01000 /* segment will be destroyed on last detach */
-# define SHM_LOCKED 02000 /* segment will not be swapped */
-# define SHM_HUGETLB 04000 /* segment is mapped via hugetlb */
-# define SHM_NORESERVE 010000 /* don't check for reservations */
-
-struct shminfo
- {
- unsigned long int shmmax;
- unsigned long int shmmin;
- unsigned long int shmmni;
- unsigned long int shmseg;
- unsigned long int shmall;
- unsigned long int __glibc_reserved1;
- unsigned long int __glibc_reserved2;
- unsigned long int __glibc_reserved3;
- unsigned long int __glibc_reserved4;
- };
-
-struct shm_info
- {
- int used_ids;
- unsigned long int shm_tot; /* total allocated shm */
- unsigned long int shm_rss; /* total resident shm */
- unsigned long int shm_swp; /* total swapped shm */
- unsigned long int swap_attempts;
- unsigned long int swap_successes;
- };
-
-#endif /* __USE_MISC */
-
-__END_DECLS
new file mode 100644
@@ -0,0 +1,28 @@
+/* Define where padding goes in struct shmid_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_SHM_H
+# error "Never use <bits/shm-pad.h> directly; include <sys/shm.h> instead."
+#endif
+
+#include <bits/wordsize.h>
+
+#define __SHM_PAD_AFTER_TIME 0
+#define __SHM_PAD_BEFORE_TIME (__WORDSIZE == 32)
+#define __SHM_SEGSZ_AFTER_TIME 1
+#define __SHM_PAD_BETWEEN_TIME_AND_SEGSZ 0
deleted file mode 100644
@@ -1,108 +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_SHM_H
-# error "Never include <bits/shm.h> directly; use <sys/shm.h> instead."
-#endif
-
-#include <bits/types.h>
-#include <bits/wordsize.h>
-#include <bits/shmlba.h>
-
-/* Permission flag for shmget. */
-#define SHM_R 0400 /* or S_IRUGO from <linux/stat.h> */
-#define SHM_W 0200 /* or S_IWUGO from <linux/stat.h> */
-
-/* Flags for `shmat'. */
-#define SHM_RDONLY 010000 /* attach read-only else read-write */
-#define SHM_RND 020000 /* round attach address to SHMLBA */
-#define SHM_REMAP 040000 /* take-over region on attach */
-#define SHM_EXEC 0100000 /* execution access */
-
-/* Commands for `shmctl'. */
-#define SHM_LOCK 11 /* lock segment (root only) */
-#define SHM_UNLOCK 12 /* unlock segment (root only) */
-
-__BEGIN_DECLS
-
-
-/* Type to count number of attaches. */
-typedef unsigned long int shmatt_t;
-
-/* Data structure describing a shared memory segment. */
-struct shmid_ds
- {
- struct ipc_perm shm_perm; /* operation permission struct */
-#if __WORDSIZE == 32
- unsigned int __pad1;
-#endif
- __time_t shm_atime; /* time of last shmat() */
-#if __WORDSIZE == 32
- unsigned int __pad2;
-#endif
- __time_t shm_dtime; /* time of last shmdt() */
-#if __WORDSIZE == 32
- unsigned int __pad3;
-#endif
- __time_t shm_ctime; /* time of last change by shmctl() */
- size_t shm_segsz; /* size of segment in bytes */
- __pid_t shm_cpid; /* pid of creator */
- __pid_t shm_lpid; /* pid of last shmop */
- shmatt_t shm_nattch; /* number of current attaches */
- unsigned long int __glibc_reserved1;
- unsigned long int __glibc_reserved2;
- };
-
-#ifdef __USE_MISC
-
-/* ipcs ctl commands */
-# define SHM_STAT 13
-# define SHM_INFO 14
-# define SHM_STAT_ANY 15
-
-/* shm_mode upper byte flags */
-# define SHM_DEST 01000 /* segment will be destroyed on last detach */
-# define SHM_LOCKED 02000 /* segment will not be swapped */
-# define SHM_HUGETLB 04000 /* segment is mapped via hugetlb */
-# define SHM_NORESERVE 010000 /* don't check for reservations */
-
-struct shminfo
- {
- unsigned long shmmax;
- unsigned long shmmin;
- unsigned long shmmni;
- unsigned long shmseg;
- unsigned long shmall;
- unsigned long __glibc_reserved1;
- unsigned long __glibc_reserved2;
- unsigned long __glibc_reserved3;
- unsigned long __glibc_reserved4;
- };
-
-struct shm_info
- {
- int used_ids;
- unsigned long int shm_tot; /* total allocated shm */
- unsigned long int shm_rss; /* total resident shm */
- unsigned long int shm_swp; /* total swapped shm */
- unsigned long int swap_attempts;
- unsigned long int swap_successes;
- };
-
-#endif /* __USE_MISC */
-
-__END_DECLS
new file mode 100644
@@ -0,0 +1,30 @@
+/* Define where padding goes in struct shmid_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_SHM_H
+# error "Never use <bits/shm-pad.h> directly; include <sys/shm.h> instead."
+#endif
+
+#ifdef __x86_64__
+# define __SHM_PAD_AFTER_TIME 0
+#else
+# define __SHM_PAD_AFTER_TIME 1
+#endif
+#define __SHM_PAD_BEFORE_TIME 0
+#define __SHM_SEGSZ_AFTER_TIME 0
+#define __SHM_PAD_BETWEEN_TIME_AND_SEGSZ 0
deleted file mode 100644
@@ -1,107 +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_SHM_H
-# error "Never include <bits/shm.h> directly; use <sys/shm.h> instead."
-#endif
-
-#include <bits/types.h>
-#include <bits/shmlba.h>
-
-/* Permission flag for shmget. */
-#define SHM_R 0400 /* or S_IRUGO from <linux/stat.h> */
-#define SHM_W 0200 /* or S_IWUGO from <linux/stat.h> */
-
-/* Flags for `shmat'. */
-#define SHM_RDONLY 010000 /* attach read-only else read-write */
-#define SHM_RND 020000 /* round attach address to SHMLBA */
-#define SHM_REMAP 040000 /* take-over region on attach */
-#define SHM_EXEC 0100000 /* execution access */
-
-/* Commands for `shmctl'. */
-#define SHM_LOCK 11 /* lock segment (root only) */
-#define SHM_UNLOCK 12 /* unlock segment (root only) */
-
-__BEGIN_DECLS
-
-
-/* Type to count number of attaches. */
-typedef __syscall_ulong_t shmatt_t;
-
-/* Data structure describing a shared memory segment. */
-struct shmid_ds
- {
- struct ipc_perm shm_perm; /* operation permission struct */
- size_t shm_segsz; /* size of segment in bytes */
- __time_t shm_atime; /* time of last shmat() */
-#ifndef __x86_64__
- unsigned long int __glibc_reserved1;
-#endif
- __time_t shm_dtime; /* time of last shmdt() */
-#ifndef __x86_64__
- unsigned long int __glibc_reserved2;
-#endif
- __time_t shm_ctime; /* time of last change by shmctl() */
-#ifndef __x86_64__
- unsigned long int __glibc_reserved3;
-#endif
- __pid_t shm_cpid; /* pid of creator */
- __pid_t shm_lpid; /* pid of last shmop */
- shmatt_t shm_nattch; /* number of current attaches */
- __syscall_ulong_t __glibc_reserved4;
- __syscall_ulong_t __glibc_reserved5;
- };
-
-#ifdef __USE_MISC
-
-/* ipcs ctl commands */
-# define SHM_STAT 13
-# define SHM_INFO 14
-# define SHM_STAT_ANY 15
-
-/* shm_mode upper byte flags */
-# define SHM_DEST 01000 /* segment will be destroyed on last detach */
-# define SHM_LOCKED 02000 /* segment will not be swapped */
-# define SHM_HUGETLB 04000 /* segment is mapped via hugetlb */
-# define SHM_NORESERVE 010000 /* don't check for reservations */
-
-struct shminfo
- {
- __syscall_ulong_t shmmax;
- __syscall_ulong_t shmmin;
- __syscall_ulong_t shmmni;
- __syscall_ulong_t shmseg;
- __syscall_ulong_t shmall;
- __syscall_ulong_t __glibc_reserved1;
- __syscall_ulong_t __glibc_reserved2;
- __syscall_ulong_t __glibc_reserved3;
- __syscall_ulong_t __glibc_reserved4;
- };
-
-struct shm_info
- {
- int used_ids;
- __syscall_ulong_t shm_tot; /* total allocated shm */
- __syscall_ulong_t shm_rss; /* total resident shm */
- __syscall_ulong_t shm_swp; /* total swapped shm */
- __syscall_ulong_t swap_attempts;
- __syscall_ulong_t swap_successes;
- };
-
-#endif /* __USE_MISC */
-
-__END_DECLS