linux_dsm_epyc7002/arch/parisc/include/uapi/asm/shmbuf.h
Helge Deller d0cf62fb63 parisc: Fixes and cleanups in kernel uapi header files
This patch fixes some bugs and partly cleans up the parisc uapi header
files to what glibc defined:
- compat_semid64_ds was wrong and did not take the endianess into
  account
- ipc64_perm exported userspace types which broke building userspace
  packages on debian (e.g. trinity)
- ipc64_perm needs to use a 32bit mode_t on 64bit kernel
- msqid64_ds and semid64_ds needs unsigned longs for various struct members
- shmid64_ds exported size_t instead of __kernel_size_t

And finally add some compile-time checks for the sizes of those structs
to avoid future breakage.

Runtime-tested with the Linux Test Project (LTP) testsuite.

Cc: <stable@vger.kernel.org> # 3.18+
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Helge Deller <deller@gmx.de>
2015-11-08 20:27:01 +01:00

54 lines
1.3 KiB
C

#ifndef _PARISC_SHMBUF_H
#define _PARISC_SHMBUF_H
#include <asm/bitsperlong.h>
/*
* The shmid64_ds structure for parisc architecture.
* Note extra padding because this structure is passed back and forth
* between kernel and user space.
*
* Pad space is left for:
* - 64-bit time_t to solve y2038 problem
* - 2 miscellaneous 32-bit values
*/
struct shmid64_ds {
struct ipc64_perm shm_perm; /* operation perms */
#if __BITS_PER_LONG != 64
unsigned int __pad1;
#endif
__kernel_time_t shm_atime; /* last attach time */
#if __BITS_PER_LONG != 64
unsigned int __pad2;
#endif
__kernel_time_t shm_dtime; /* last detach time */
#if __BITS_PER_LONG != 64
unsigned int __pad3;
#endif
__kernel_time_t shm_ctime; /* last change time */
#if __BITS_PER_LONG != 64
unsigned int __pad4;
#endif
__kernel_size_t shm_segsz; /* size of segment (bytes) */
__kernel_pid_t shm_cpid; /* pid of creator */
__kernel_pid_t shm_lpid; /* pid of last operator */
unsigned long shm_nattch; /* no. of current attaches */
unsigned long __unused1;
unsigned long __unused2;
};
struct shminfo64 {
unsigned long shmmax;
unsigned long shmmin;
unsigned long shmmni;
unsigned long shmseg;
unsigned long shmall;
unsigned long __unused1;
unsigned long __unused2;
unsigned long __unused3;
unsigned long __unused4;
};
#endif /* _PARISC_SHMBUF_H */