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
13 typedef s32 __compat_uid_t;
14 typedef s32 __compat_gid_t;
15
16 typedef __compat_uid_t __compat_uid32_t;
17 typedef __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
25 typedef 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
33 typedef u32 compat_nlink_t;
34
35 struct 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
61 struct 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
76 struct 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
89 struct 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
98 struct 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
130 struct 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 */
146 typedef 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
153 static inline int is_compat_task(void)
154 {
155 return test_thread_flag(TIF_32BIT_ADDR);
156 }
157
158 #endif /* _ASM_COMPAT_H */
159
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