1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _ASM_SPARC64_COMPAT_H
3 #define _ASM_SPARC64_COMPAT_H
5 * Architecture specific compatibility types
7 #include <linux/types.h>
9 #include <asm-generic/compat.h>
11 #define COMPAT_USER_HZ 100
12 #define COMPAT_UTS_MACHINE "sparc\0\0"
14 typedef u16 __compat_uid_t;
15 typedef u16 __compat_gid_t;
16 typedef u32 __compat_uid32_t;
17 typedef u32 __compat_gid32_t;
18 typedef u16 compat_mode_t;
19 typedef u16 compat_dev_t;
20 typedef s16 compat_nlink_t;
21 typedef u16 compat_ipc_pid_t;
22 typedef u32 compat_caddr_t;
23 typedef __kernel_fsid_t compat_fsid_t;
24 typedef s64 compat_s64;
25 typedef u64 compat_u64;
29 compat_mode_t st_mode;
30 compat_nlink_t st_nlink;
31 __compat_uid_t st_uid;
32 __compat_gid_t st_gid;
35 old_time32_t st_atime;
36 compat_ulong_t st_atime_nsec;
37 old_time32_t st_mtime;
38 compat_ulong_t st_mtime_nsec;
39 old_time32_t st_ctime;
40 compat_ulong_t st_ctime_nsec;
41 compat_off_t st_blksize;
42 compat_off_t st_blocks;
46 struct compat_stat64 {
47 unsigned long long st_dev;
49 unsigned long long st_ino;
52 unsigned int st_nlink;
57 unsigned long long st_rdev;
59 unsigned char __pad3[8];
62 unsigned int st_blksize;
64 unsigned char __pad4[8];
65 unsigned int st_blocks;
67 unsigned int st_atime;
68 unsigned int st_atime_nsec;
70 unsigned int st_mtime;
71 unsigned int st_mtime_nsec;
73 unsigned int st_ctime;
74 unsigned int st_ctime_nsec;
76 unsigned int __unused4;
77 unsigned int __unused5;
93 struct compat_flock64 {
96 compat_loff_t l_start;
102 struct compat_statfs {
110 compat_fsid_t f_fsid;
111 int f_namelen; /* SunOS ignores this field. */
117 #define COMPAT_RLIM_INFINITY 0x7fffffff
119 typedef u32 compat_old_sigset_t;
121 #define _COMPAT_NSIG 64
122 #define _COMPAT_NSIG_BPW 32
124 typedef u32 compat_sigset_word;
126 #define COMPAT_OFF_T_MAX 0x7fffffff
129 * A pointer passed in from user mode. This should not
130 * be used for syscall parameters, just declare them
131 * as pointers because the syscall entry code will have
132 * appropriately converted them already.
135 static inline void __user *compat_ptr(compat_uptr_t uptr)
137 return (void __user *)(unsigned long)uptr;
140 static inline compat_uptr_t ptr_to_compat(void __user *uptr)
142 return (u32)(unsigned long)uptr;
146 static inline void __user *arch_compat_alloc_user_space(long len)
148 struct pt_regs *regs = current_thread_info()->kregs;
149 unsigned long usp = regs->u_regs[UREG_I6];
151 if (test_thread_64bit_stack(usp))
154 if (test_thread_flag(TIF_32BIT))
160 return (void __user *) usp;
164 struct compat_ipc64_perm {
166 __compat_uid32_t uid;
167 __compat_gid32_t gid;
168 __compat_uid32_t cuid;
169 __compat_gid32_t cgid;
170 unsigned short __pad1;
172 unsigned short __pad2;
174 unsigned long __unused1; /* yes they really are 64bit pads */
175 unsigned long __unused2;
178 struct compat_semid64_ds {
179 struct compat_ipc64_perm sem_perm;
180 unsigned int sem_otime_high;
181 unsigned int sem_otime;
182 unsigned int sem_ctime_high;
183 unsigned int sem_ctime;
189 struct compat_msqid64_ds {
190 struct compat_ipc64_perm msg_perm;
191 unsigned int msg_stime_high;
192 unsigned int msg_stime;
193 unsigned int msg_rtime_high;
194 unsigned int msg_rtime;
195 unsigned int msg_ctime_high;
196 unsigned int msg_ctime;
197 unsigned int msg_cbytes;
198 unsigned int msg_qnum;
199 unsigned int msg_qbytes;
200 compat_pid_t msg_lspid;
201 compat_pid_t msg_lrpid;
202 unsigned int __unused1;
203 unsigned int __unused2;
206 struct compat_shmid64_ds {
207 struct compat_ipc64_perm shm_perm;
208 unsigned int shm_atime_high;
209 unsigned int shm_atime;
210 unsigned int shm_dtime_high;
211 unsigned int shm_dtime;
212 unsigned int shm_ctime_high;
213 unsigned int shm_ctime;
214 compat_size_t shm_segsz;
215 compat_pid_t shm_cpid;
216 compat_pid_t shm_lpid;
217 unsigned int shm_nattch;
218 unsigned int __unused1;
219 unsigned int __unused2;
223 static inline int is_compat_task(void)
225 return test_thread_flag(TIF_32BIT);
228 static inline bool in_compat_syscall(void)
230 /* Vector 0x110 is LINUX_32BIT_SYSCALL_TRAP */
231 return pt_regs_trap_type(current_pt_regs()) == 0x110;
233 #define in_compat_syscall in_compat_syscall
236 #endif /* _ASM_SPARC64_COMPAT_H */