compat.h

  1/* SPDX-License-Identifier: GPL-2.0 */
  2#ifndef _ASM_PARISC_COMPAT_H
  3#define _ASM_PARISC_COMPAT_H
  4/*
  5 * Architecture specific compatibility types
  6 */
  7#include <linux/types.h>
  8#include <linux/sched.h>
  9#include <linux/thread_info.h>
 10
 11#define compat_mode_t compat_mode_t
 12typedef u16	compat_mode_t;
 13
 14#define compat_ipc_pid_t compat_ipc_pid_t
 15typedef u16	compat_ipc_pid_t;
 16
 17#define compat_ipc64_perm compat_ipc64_perm
 18
 19#include <asm-generic/compat.h>
 20
 21#define COMPAT_UTS_MACHINE	"parisc\0\0"
 22
 23typedef u16	compat_nlink_t;
 24
 25struct compat_stat {
 26	compat_dev_t		st_dev;	/* dev_t is 32 bits on parisc */
 27	compat_ino_t		st_ino;	/* 32 bits */
 28	compat_mode_t		st_mode;	/* 16 bits */
 29	compat_nlink_t  	st_nlink;	/* 16 bits */
 30	u16			st_reserved1;	/* old st_uid */
 31	u16			st_reserved2;	/* old st_gid */
 32	compat_dev_t		st_rdev;
 33	compat_off_t		st_size;
 34	old_time32_t		st_atime;
 35	u32			st_atime_nsec;
 36	old_time32_t		st_mtime;
 37	u32			st_mtime_nsec;
 38	old_time32_t		st_ctime;
 39	u32			st_ctime_nsec;
 40	s32			st_blksize;
 41	s32			st_blocks;
 42	u32			__unused1;	/* ACL stuff */
 43	compat_dev_t		__unused2;	/* network */
 44	compat_ino_t		__unused3;	/* network */
 45	u32			__unused4;	/* cnodes */
 46	u16			__unused5;	/* netsite */
 47	short			st_fstype;
 48	compat_dev_t		st_realdev;
 49	u16			st_basemode;
 50	u16			st_spareshort;
 51	__compat_uid32_t	st_uid;
 52	__compat_gid32_t	st_gid;
 53	u32			st_spare4[3];
 54};
 55
 56struct compat_sigcontext {
 57	compat_int_t sc_flags;
 58	compat_int_t sc_gr[32]; /* PSW in sc_gr[0] */
 59	u64 sc_fr[32];
 60	compat_int_t sc_iasq[2];
 61	compat_int_t sc_iaoq[2];
 62	compat_int_t sc_sar; /* cr11 */
 63};
 64
 65struct compat_ipc64_perm {
 66	compat_key_t key;
 67	__compat_uid_t uid;
 68	__compat_gid_t gid;
 69	__compat_uid_t cuid;
 70	__compat_gid_t cgid;
 71	unsigned short int __pad1;
 72	compat_mode_t mode;
 73	unsigned short int __pad2;
 74	unsigned short int seq;
 75	unsigned int __pad3;
 76	unsigned long __unused1;	/* yes they really are 64bit pads */
 77	unsigned long __unused2;
 78};
 79
 80struct compat_semid64_ds {
 81	struct compat_ipc64_perm sem_perm;
 82	unsigned int sem_otime_high;
 83	unsigned int sem_otime;
 84	unsigned int sem_ctime_high;
 85	unsigned int sem_ctime;
 86	compat_ulong_t sem_nsems;
 87	compat_ulong_t __unused3;
 88	compat_ulong_t __unused4;
 89};
 90
 91struct compat_msqid64_ds {
 92	struct compat_ipc64_perm msg_perm;
 93	unsigned int msg_stime_high;
 94	unsigned int msg_stime;
 95	unsigned int msg_rtime_high;
 96	unsigned int msg_rtime;
 97	unsigned int msg_ctime_high;
 98	unsigned int msg_ctime;
 99	compat_ulong_t msg_cbytes;
100	compat_ulong_t msg_qnum;
101	compat_ulong_t msg_qbytes;
102	compat_pid_t msg_lspid;
103	compat_pid_t msg_lrpid;
104	compat_ulong_t __unused4;
105	compat_ulong_t __unused5;
106};
107
108struct compat_shmid64_ds {
109	struct compat_ipc64_perm shm_perm;
110	unsigned int shm_atime_high;
111	unsigned int shm_atime;
112	unsigned int shm_dtime_high;
113	unsigned int shm_dtime;
114	unsigned int shm_ctime_high;
115	unsigned int shm_ctime;
116	unsigned int __unused4;
117	compat_size_t shm_segsz;
118	compat_pid_t shm_cpid;
119	compat_pid_t shm_lpid;
120	compat_ulong_t shm_nattch;
121	compat_ulong_t __unused5;
122	compat_ulong_t __unused6;
123};
124
125/*
126 * The type of struct elf_prstatus.pr_reg in compatible core dumps.
127 */
128#define COMPAT_ELF_NGREG 80
129typedef compat_ulong_t compat_elf_gregset_t[COMPAT_ELF_NGREG];
130
131static inline int __is_compat_task(struct task_struct *t)
132{
133	return test_tsk_thread_flag(t, TIF_32BIT);
134}
135
136static inline int is_compat_task(void)
137{
138	return __is_compat_task(current);
139}
140
141#endif /* _ASM_PARISC_COMPAT_H */