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TOMOYO Linux Cross Reference
Linux/arch/sparc/include/asm/compat.h

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  1 /* SPDX-License-Identifier: GPL-2.0 */
  2 #ifndef _ASM_SPARC64_COMPAT_H
  3 #define _ASM_SPARC64_COMPAT_H
  4 /*
  5  * Architecture specific compatibility types
  6  */
  7 #include <linux/types.h>
  8 
  9 #define COMPAT_USER_HZ          100
 10 #define COMPAT_UTS_MACHINE      "sparc\0\0"
 11 
 12 typedef u32             compat_size_t;
 13 typedef s32             compat_ssize_t;
 14 typedef s32             compat_clock_t;
 15 typedef s32             compat_pid_t;
 16 typedef u16             __compat_uid_t;
 17 typedef u16             __compat_gid_t;
 18 typedef u32             __compat_uid32_t;
 19 typedef u32             __compat_gid32_t;
 20 typedef u16             compat_mode_t;
 21 typedef u32             compat_ino_t;
 22 typedef u16             compat_dev_t;
 23 typedef s32             compat_off_t;
 24 typedef s64             compat_loff_t;
 25 typedef s16             compat_nlink_t;
 26 typedef u16             compat_ipc_pid_t;
 27 typedef s32             compat_daddr_t;
 28 typedef u32             compat_caddr_t;
 29 typedef __kernel_fsid_t compat_fsid_t;
 30 typedef s32             compat_key_t;
 31 typedef s32             compat_timer_t;
 32 
 33 typedef s32             compat_int_t;
 34 typedef s32             compat_long_t;
 35 typedef s64             compat_s64;
 36 typedef u32             compat_uint_t;
 37 typedef u32             compat_ulong_t;
 38 typedef u64             compat_u64;
 39 typedef u32             compat_uptr_t;
 40 
 41 struct compat_stat {
 42         compat_dev_t    st_dev;
 43         compat_ino_t    st_ino;
 44         compat_mode_t   st_mode;
 45         compat_nlink_t  st_nlink;
 46         __compat_uid_t  st_uid;
 47         __compat_gid_t  st_gid;
 48         compat_dev_t    st_rdev;
 49         compat_off_t    st_size;
 50         compat_time_t   st_atime;
 51         compat_ulong_t  st_atime_nsec;
 52         compat_time_t   st_mtime;
 53         compat_ulong_t  st_mtime_nsec;
 54         compat_time_t   st_ctime;
 55         compat_ulong_t  st_ctime_nsec;
 56         compat_off_t    st_blksize;
 57         compat_off_t    st_blocks;
 58         u32             __unused4[2];
 59 };
 60 
 61 struct compat_stat64 {
 62         unsigned long long      st_dev;
 63 
 64         unsigned long long      st_ino;
 65 
 66         unsigned int    st_mode;
 67         unsigned int    st_nlink;
 68 
 69         unsigned int    st_uid;
 70         unsigned int    st_gid;
 71 
 72         unsigned long long      st_rdev;
 73 
 74         unsigned char   __pad3[8];
 75 
 76         long long       st_size;
 77         unsigned int    st_blksize;
 78 
 79         unsigned char   __pad4[8];
 80         unsigned int    st_blocks;
 81 
 82         unsigned int    st_atime;
 83         unsigned int    st_atime_nsec;
 84 
 85         unsigned int    st_mtime;
 86         unsigned int    st_mtime_nsec;
 87 
 88         unsigned int    st_ctime;
 89         unsigned int    st_ctime_nsec;
 90 
 91         unsigned int    __unused4;
 92         unsigned int    __unused5;
 93 };
 94 
 95 struct compat_flock {
 96         short           l_type;
 97         short           l_whence;
 98         compat_off_t    l_start;
 99         compat_off_t    l_len;
100         compat_pid_t    l_pid;
101         short           __unused;
102 };
103 
104 #define F_GETLK64       12
105 #define F_SETLK64       13
106 #define F_SETLKW64      14
107 
108 struct compat_flock64 {
109         short           l_type;
110         short           l_whence;
111         compat_loff_t   l_start;
112         compat_loff_t   l_len;
113         compat_pid_t    l_pid;
114         short           __unused;
115 };
116 
117 struct compat_statfs {
118         int             f_type;
119         int             f_bsize;
120         int             f_blocks;
121         int             f_bfree;
122         int             f_bavail;
123         int             f_files;
124         int             f_ffree;
125         compat_fsid_t   f_fsid;
126         int             f_namelen;      /* SunOS ignores this field. */
127         int             f_frsize;
128         int             f_flags;
129         int             f_spare[4];
130 };
131 
132 #define COMPAT_RLIM_INFINITY 0x7fffffff
133 
134 typedef u32             compat_old_sigset_t;
135 
136 #define _COMPAT_NSIG            64
137 #define _COMPAT_NSIG_BPW        32
138 
139 typedef u32             compat_sigset_word;
140 
141 #define COMPAT_OFF_T_MAX        0x7fffffff
142 
143 /*
144  * A pointer passed in from user mode. This should not
145  * be used for syscall parameters, just declare them
146  * as pointers because the syscall entry code will have
147  * appropriately converted them already.
148  */
149 
150 static inline void __user *compat_ptr(compat_uptr_t uptr)
151 {
152         return (void __user *)(unsigned long)uptr;
153 }
154 
155 static inline compat_uptr_t ptr_to_compat(void __user *uptr)
156 {
157         return (u32)(unsigned long)uptr;
158 }
159 
160 #ifdef CONFIG_COMPAT
161 static inline void __user *arch_compat_alloc_user_space(long len)
162 {
163         struct pt_regs *regs = current_thread_info()->kregs;
164         unsigned long usp = regs->u_regs[UREG_I6];
165 
166         if (test_thread_64bit_stack(usp))
167                 usp += STACK_BIAS;
168 
169         if (test_thread_flag(TIF_32BIT))
170                 usp &= 0xffffffffUL;
171 
172         usp -= len;
173         usp &= ~0x7UL;
174 
175         return (void __user *) usp;
176 }
177 #endif
178 
179 struct compat_ipc64_perm {
180         compat_key_t key;
181         __compat_uid32_t uid;
182         __compat_gid32_t gid;
183         __compat_uid32_t cuid;
184         __compat_gid32_t cgid;
185         unsigned short __pad1;
186         compat_mode_t mode;
187         unsigned short __pad2;
188         unsigned short seq;
189         unsigned long __unused1;        /* yes they really are 64bit pads */
190         unsigned long __unused2;
191 };
192 
193 struct compat_semid64_ds {
194         struct compat_ipc64_perm sem_perm;
195         unsigned int    sem_otime_high;
196         unsigned int    sem_otime;
197         unsigned int    sem_ctime_high;
198         unsigned int    sem_ctime;
199         u32             sem_nsems;
200         u32             __unused1;
201         u32             __unused2;
202 };
203 
204 struct compat_msqid64_ds {
205         struct compat_ipc64_perm msg_perm;
206         unsigned int    msg_stime_high;
207         unsigned int    msg_stime;
208         unsigned int    msg_rtime_high;
209         unsigned int    msg_rtime;
210         unsigned int    msg_ctime_high;
211         unsigned int    msg_ctime;
212         unsigned int    msg_cbytes;
213         unsigned int    msg_qnum;
214         unsigned int    msg_qbytes;
215         compat_pid_t    msg_lspid;
216         compat_pid_t    msg_lrpid;
217         unsigned int    __unused1;
218         unsigned int    __unused2;
219 };
220 
221 struct compat_shmid64_ds {
222         struct compat_ipc64_perm shm_perm;
223         unsigned int    shm_atime_high;
224         unsigned int    shm_atime;
225         unsigned int    shm_dtime_high;
226         unsigned int    shm_dtime;
227         unsigned int    shm_ctime_high;
228         unsigned int    shm_ctime;
229         compat_size_t   shm_segsz;
230         compat_pid_t    shm_cpid;
231         compat_pid_t    shm_lpid;
232         unsigned int    shm_nattch;
233         unsigned int    __unused1;
234         unsigned int    __unused2;
235 };
236 
237 #ifdef CONFIG_COMPAT
238 static inline int is_compat_task(void)
239 {
240         return test_thread_flag(TIF_32BIT);
241 }
242 
243 static inline bool in_compat_syscall(void)
244 {
245         /* Vector 0x110 is LINUX_32BIT_SYSCALL_TRAP */
246         return pt_regs_trap_type(current_pt_regs()) == 0x110;
247 }
248 #define in_compat_syscall in_compat_syscall
249 #endif
250 
251 #endif /* _ASM_SPARC64_COMPAT_H */
252 

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