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b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
1965aae3 PA |
2 | #ifndef _ASM_X86_COMPAT_H |
3 | #define _ASM_X86_COMPAT_H | |
1da177e4 LT |
4 | |
5 | /* | |
6 | * Architecture specific compatibility types | |
7 | */ | |
8 | #include <linux/types.h> | |
9 | #include <linux/sched.h> | |
d375cf15 | 10 | #include <linux/sched/task_stack.h> |
d1a797f3 | 11 | #include <asm/processor.h> |
95d1b8f9 | 12 | #include <asm/user32.h> |
fca460f9 | 13 | #include <asm/unistd.h> |
1da177e4 | 14 | |
1a33b18b AB |
15 | #define compat_mode_t compat_mode_t |
16 | typedef u16 compat_mode_t; | |
17 | ||
84a0c977 GR |
18 | #define __compat_uid_t __compat_uid_t |
19 | typedef u16 __compat_uid_t; | |
20 | typedef u16 __compat_gid_t; | |
21 | ||
22 | #define compat_dev_t compat_dev_t | |
23 | typedef u16 compat_dev_t; | |
24 | ||
25 | #define compat_ipc_pid_t compat_ipc_pid_t | |
26 | typedef u16 compat_ipc_pid_t; | |
27 | ||
28 | #define compat_statfs compat_statfs | |
29 | ||
fb373975 AB |
30 | #include <asm-generic/compat.h> |
31 | ||
e28cbf22 | 32 | #define COMPAT_UTS_MACHINE "i686\0\0" |
1da177e4 | 33 | |
1da177e4 | 34 | typedef u16 compat_nlink_t; |
1da177e4 | 35 | |
1da177e4 | 36 | struct compat_stat { |
932aba1e | 37 | u32 st_dev; |
1da177e4 LT |
38 | compat_ino_t st_ino; |
39 | compat_mode_t st_mode; | |
40 | compat_nlink_t st_nlink; | |
202e5979 SR |
41 | __compat_uid_t st_uid; |
42 | __compat_gid_t st_gid; | |
932aba1e | 43 | u32 st_rdev; |
1da177e4 LT |
44 | u32 st_size; |
45 | u32 st_blksize; | |
46 | u32 st_blocks; | |
47 | u32 st_atime; | |
48 | u32 st_atime_nsec; | |
49 | u32 st_mtime; | |
50 | u32 st_mtime_nsec; | |
51 | u32 st_ctime; | |
52 | u32 st_ctime_nsec; | |
53 | u32 __unused4; | |
54 | u32 __unused5; | |
55 | }; | |
56 | ||
1da177e4 | 57 | /* |
3ce0f237 CH |
58 | * IA32 uses 4 byte alignment for 64 bit quantities, so we need to pack the |
59 | * compat flock64 structure. | |
1da177e4 | 60 | */ |
3ce0f237 | 61 | #define __ARCH_NEED_COMPAT_FLOCK64_PACKED |
1da177e4 LT |
62 | |
63 | struct compat_statfs { | |
64 | int f_type; | |
65 | int f_bsize; | |
66 | int f_blocks; | |
67 | int f_bfree; | |
68 | int f_bavail; | |
69 | int f_files; | |
70 | int f_ffree; | |
71 | compat_fsid_t f_fsid; | |
72 | int f_namelen; /* SunOS ignores this field. */ | |
73 | int f_frsize; | |
1448c721 EB |
74 | int f_flags; |
75 | int f_spare[4]; | |
1da177e4 LT |
76 | }; |
77 | ||
7b2dd368 | 78 | #ifdef CONFIG_X86_X32_ABI |
d1a797f3 PA |
79 | #define COMPAT_USE_64BIT_TIME \ |
80 | (!!(task_pt_regs(current)->orig_ax & __X32_SYSCALL_BIT)) | |
d1a797f3 | 81 | #endif |
95d1b8f9 | 82 | |
abfb9498 | 83 | static inline bool in_x32_syscall(void) |
a628b684 | 84 | { |
fca460f9 PA |
85 | #ifdef CONFIG_X86_X32_ABI |
86 | if (task_pt_regs(current)->orig_ax & __X32_SYSCALL_BIT) | |
87 | return true; | |
88 | #endif | |
89 | return false; | |
bf2fcc6f AK |
90 | } |
91 | ||
a846446b | 92 | static inline bool in_32bit_syscall(void) |
a628b684 | 93 | { |
abfb9498 | 94 | return in_ia32_syscall() || in_x32_syscall(); |
a628b684 | 95 | } |
a846446b DS |
96 | |
97 | #ifdef CONFIG_COMPAT | |
98 | static inline bool in_compat_syscall(void) | |
99 | { | |
100 | return in_32bit_syscall(); | |
101 | } | |
f970165b | 102 | #define in_compat_syscall in_compat_syscall /* override the generic impl */ |
527c4125 | 103 | #define compat_need_64bit_alignment_fixup in_ia32_syscall |
a846446b | 104 | #endif |
a628b684 | 105 | |
ea64d5ac | 106 | struct compat_siginfo; |
c3b3f524 CH |
107 | |
108 | #ifdef CONFIG_X86_X32_ABI | |
109 | int copy_siginfo_to_user32(struct compat_siginfo __user *to, | |
110 | const kernel_siginfo_t *from); | |
111 | #define copy_siginfo_to_user32 copy_siginfo_to_user32 | |
112 | #endif /* CONFIG_X86_X32_ABI */ | |
ea64d5ac | 113 | |
1965aae3 | 114 | #endif /* _ASM_X86_COMPAT_H */ |