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1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef _ASM_COMPAT_H
3#define _ASM_COMPAT_H
4/*
5 * Architecture specific compatibility types
6 */
7#include <linux/thread_info.h>
8#include <linux/types.h>
9#include <asm/page.h>
10#include <asm/ptrace.h>
11
12#define __compat_uid_t __compat_uid_t
13typedef s32 __compat_uid_t;
14typedef s32 __compat_gid_t;
15
16typedef __compat_uid_t __compat_uid32_t;
17typedef __compat_gid_t __compat_gid32_t;
18#define __compat_uid32_t __compat_uid32_t
19
20#define compat_statfs compat_statfs
21#define compat_ipc64_perm compat_ipc64_perm
22
23#define _COMPAT_NSIG 128 /* Don't ask !$@#% ... */
24#define _COMPAT_NSIG_BPW 32
25typedef u32 compat_sigset_word;
26
27#define COMPAT_RLIM_INFINITY 0x7fffffffUL
28
29#include <asm-generic/compat.h>
30
31#define COMPAT_UTS_MACHINE "mips\0\0\0"
32
33typedef u32 compat_nlink_t;
34
35struct compat_stat {
36 compat_dev_t st_dev;
37 s32 st_pad1[3];
38 compat_ino_t st_ino;
39 compat_mode_t st_mode;
40 compat_nlink_t st_nlink;
41 __compat_uid_t st_uid;
42 __compat_gid_t st_gid;
43 compat_dev_t st_rdev;
44 s32 st_pad2[2];
45 compat_off_t st_size;
46 s32 st_pad3;
47 old_time32_t st_atime;
48 s32 st_atime_nsec;
49 old_time32_t st_mtime;
50 s32 st_mtime_nsec;
51 old_time32_t st_ctime;
52 s32 st_ctime_nsec;
53 s32 st_blksize;
54 s32 st_blocks;
55 s32 st_pad4[14];
56};
57
58#define __ARCH_COMPAT_FLOCK_EXTRA_SYSID s32 l_sysid;
59#define __ARCH_COMPAT_FLOCK_PAD s32 pad[4];
60
61struct compat_statfs {
62 int f_type;
63 int f_bsize;
64 int f_frsize;
65 int f_blocks;
66 int f_bfree;
67 int f_files;
68 int f_ffree;
69 int f_bavail;
70 compat_fsid_t f_fsid;
71 int f_namelen;
72 int f_flags;
73 int f_spare[5];
74};
75
76struct compat_ipc64_perm {
77 compat_key_t key;
78 __compat_uid32_t uid;
79 __compat_gid32_t gid;
80 __compat_uid32_t cuid;
81 __compat_gid32_t cgid;
82 compat_mode_t mode;
83 unsigned short seq;
84 unsigned short __pad2;
85 compat_ulong_t __unused1;
86 compat_ulong_t __unused2;
87};
88
89struct compat_semid64_ds {
90 struct compat_ipc64_perm sem_perm;
91 compat_ulong_t sem_otime;
92 compat_ulong_t sem_ctime;
93 compat_ulong_t sem_nsems;
94 compat_ulong_t sem_otime_high;
95 compat_ulong_t sem_ctime_high;
96};
97
98struct compat_msqid64_ds {
99 struct compat_ipc64_perm msg_perm;
100#ifndef CONFIG_CPU_LITTLE_ENDIAN
101 compat_ulong_t msg_stime_high;
102#endif
103 compat_ulong_t msg_stime;
104#ifdef CONFIG_CPU_LITTLE_ENDIAN
105 compat_ulong_t msg_stime_high;
106#endif
107#ifndef CONFIG_CPU_LITTLE_ENDIAN
108 compat_ulong_t msg_rtime_high;
109#endif
110 compat_ulong_t msg_rtime;
111#ifdef CONFIG_CPU_LITTLE_ENDIAN
112 compat_ulong_t msg_rtime_high;
113#endif
114#ifndef CONFIG_CPU_LITTLE_ENDIAN
115 compat_ulong_t msg_ctime_high;
116#endif
117 compat_ulong_t msg_ctime;
118#ifdef CONFIG_CPU_LITTLE_ENDIAN
119 compat_ulong_t msg_ctime_high;
120#endif
121 compat_ulong_t msg_cbytes;
122 compat_ulong_t msg_qnum;
123 compat_ulong_t msg_qbytes;
124 compat_pid_t msg_lspid;
125 compat_pid_t msg_lrpid;
126 compat_ulong_t __unused4;
127 compat_ulong_t __unused5;
128};
129
130struct compat_shmid64_ds {
131 struct compat_ipc64_perm shm_perm;
132 compat_size_t shm_segsz;
133 compat_ulong_t shm_atime;
134 compat_ulong_t shm_dtime;
135 compat_ulong_t shm_ctime;
136 compat_pid_t shm_cpid;
137 compat_pid_t shm_lpid;
138 compat_ulong_t shm_nattch;
139 compat_ushort_t shm_atime_high;
140 compat_ushort_t shm_dtime_high;
141 compat_ushort_t shm_ctime_high;
142 compat_ushort_t __unused2;
143};
144
145/* MIPS has unusual order of fields in stack_t */
146typedef struct compat_sigaltstack {
147 compat_uptr_t ss_sp;
148 compat_size_t ss_size;
149 int ss_flags;
150} compat_stack_t;
151#define compat_sigaltstack compat_sigaltstack
152
153static inline int is_compat_task(void)
154{
155 return test_thread_flag(TIF_32BIT_ADDR);
156}
157
158#endif /* _ASM_COMPAT_H */