xref: /linux/arch/mips/include/asm/compat.h (revision 4f2c0a4acffbec01079c28f839422e64ddeff004)
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 
is_compat_task(void)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