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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 IS_ENABLED(CONFIG_COMPAT) && 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 */