tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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linux
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
12typedef s32 __compat_uid_t;
13typedef s32 __compat_gid_t;
14typedef __compat_uid_t __compat_uid32_t;
15typedef __compat_gid_t __compat_gid32_t;
16#define __compat_uid32_t __compat_uid32_t
17#define __compat_gid32_t __compat_gid32_t
18
19#define _COMPAT_NSIG 128 /* Don't ask !$@#% ... */
20#define _COMPAT_NSIG_BPW 32
21typedef u32 compat_sigset_word;
22
23#include <asm-generic/compat.h>
24
25#define COMPAT_USER_HZ 100
26#define COMPAT_UTS_MACHINE "mips\0\0\0"
27
28typedef u32 compat_dev_t;
29typedef u32 compat_nlink_t;
30typedef s32 compat_ipc_pid_t;
31typedef struct {
32 s32 val[2];
33} compat_fsid_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
58struct compat_flock {
59 short l_type;
60 short l_whence;
61 compat_off_t l_start;
62 compat_off_t l_len;
63 s32 l_sysid;
64 compat_pid_t l_pid;
65 s32 pad[4];
66};
67
68#define F_GETLK64 33
69#define F_SETLK64 34
70#define F_SETLKW64 35
71
72struct compat_flock64 {
73 short l_type;
74 short l_whence;
75 compat_loff_t l_start;
76 compat_loff_t l_len;
77 compat_pid_t l_pid;
78};
79
80struct compat_statfs {
81 int f_type;
82 int f_bsize;
83 int f_frsize;
84 int f_blocks;
85 int f_bfree;
86 int f_files;
87 int f_ffree;
88 int f_bavail;
89 compat_fsid_t f_fsid;
90 int f_namelen;
91 int f_flags;
92 int f_spare[5];
93};
94
95#define COMPAT_RLIM_INFINITY 0x7fffffffUL
96
97#define COMPAT_OFF_T_MAX 0x7fffffff
98
99struct compat_ipc64_perm {
100 compat_key_t key;
101 __compat_uid32_t uid;
102 __compat_gid32_t gid;
103 __compat_uid32_t cuid;
104 __compat_gid32_t cgid;
105 compat_mode_t mode;
106 unsigned short seq;
107 unsigned short __pad2;
108 compat_ulong_t __unused1;
109 compat_ulong_t __unused2;
110};
111
112struct compat_semid64_ds {
113 struct compat_ipc64_perm sem_perm;
114 compat_ulong_t sem_otime;
115 compat_ulong_t sem_ctime;
116 compat_ulong_t sem_nsems;
117 compat_ulong_t sem_otime_high;
118 compat_ulong_t sem_ctime_high;
119};
120
121struct compat_msqid64_ds {
122 struct compat_ipc64_perm msg_perm;
123#ifndef CONFIG_CPU_LITTLE_ENDIAN
124 compat_ulong_t msg_stime_high;
125#endif
126 compat_ulong_t msg_stime;
127#ifdef CONFIG_CPU_LITTLE_ENDIAN
128 compat_ulong_t msg_stime_high;
129#endif
130#ifndef CONFIG_CPU_LITTLE_ENDIAN
131 compat_ulong_t msg_rtime_high;
132#endif
133 compat_ulong_t msg_rtime;
134#ifdef CONFIG_CPU_LITTLE_ENDIAN
135 compat_ulong_t msg_rtime_high;
136#endif
137#ifndef CONFIG_CPU_LITTLE_ENDIAN
138 compat_ulong_t msg_ctime_high;
139#endif
140 compat_ulong_t msg_ctime;
141#ifdef CONFIG_CPU_LITTLE_ENDIAN
142 compat_ulong_t msg_ctime_high;
143#endif
144 compat_ulong_t msg_cbytes;
145 compat_ulong_t msg_qnum;
146 compat_ulong_t msg_qbytes;
147 compat_pid_t msg_lspid;
148 compat_pid_t msg_lrpid;
149 compat_ulong_t __unused4;
150 compat_ulong_t __unused5;
151};
152
153struct compat_shmid64_ds {
154 struct compat_ipc64_perm shm_perm;
155 compat_size_t shm_segsz;
156 compat_ulong_t shm_atime;
157 compat_ulong_t shm_dtime;
158 compat_ulong_t shm_ctime;
159 compat_pid_t shm_cpid;
160 compat_pid_t shm_lpid;
161 compat_ulong_t shm_nattch;
162 compat_ushort_t shm_atime_high;
163 compat_ushort_t shm_dtime_high;
164 compat_ushort_t shm_ctime_high;
165 compat_ushort_t __unused2;
166};
167
168/* MIPS has unusual order of fields in stack_t */
169typedef struct compat_sigaltstack {
170 compat_uptr_t ss_sp;
171 compat_size_t ss_size;
172 int ss_flags;
173} compat_stack_t;
174#define compat_sigaltstack compat_sigaltstack
175
176static inline int is_compat_task(void)
177{
178 return test_thread_flag(TIF_32BIT_ADDR);
179}
180
181#endif /* _ASM_COMPAT_H */