xref: /openbmc/linux/arch/s390/kernel/compat_linux.h (revision 2c684d89)
1 #ifndef _ASM_S390X_S390_H
2 #define _ASM_S390X_S390_H
3 
4 #include <linux/compat.h>
5 #include <linux/socket.h>
6 #include <linux/syscalls.h>
7 
8 /* Macro that masks the high order bit of an 32 bit pointer and converts it*/
9 /*       to a 64 bit pointer */
10 #define A(__x) ((unsigned long)((__x) & 0x7FFFFFFFUL))
11 #define AA(__x)				\
12 	((unsigned long)(__x))
13 
14 /* Now 32bit compatibility types */
15 struct ipc_kludge_32 {
16         __u32   msgp;                           /* pointer              */
17         __s32   msgtyp;
18 };
19 
20 /* asm/sigcontext.h */
21 typedef union
22 {
23 	__u64   d;
24 	__u32   f;
25 } freg_t32;
26 
27 typedef struct
28 {
29 	unsigned int	fpc;
30 	unsigned int	pad;
31 	freg_t32	fprs[__NUM_FPRS];
32 } _s390_fp_regs32;
33 
34 typedef struct
35 {
36         __u32   mask;
37         __u32	addr;
38 } _psw_t32 __attribute__ ((aligned(8)));
39 
40 typedef struct
41 {
42 	_psw_t32	psw;
43 	__u32		gprs[__NUM_GPRS];
44 	__u32		acrs[__NUM_ACRS];
45 } _s390_regs_common32;
46 
47 typedef struct
48 {
49 	_s390_regs_common32 regs;
50 	_s390_fp_regs32     fpregs;
51 } _sigregs32;
52 
53 typedef struct
54 {
55 	__u32 gprs_high[__NUM_GPRS];
56 	__u64 vxrs_low[__NUM_VXRS_LOW];
57 	__vector128 vxrs_high[__NUM_VXRS_HIGH];
58 	__u8 __reserved[128];
59 } _sigregs_ext32;
60 
61 #define _SIGCONTEXT_NSIG32	64
62 #define _SIGCONTEXT_NSIG_BPW32	32
63 #define __SIGNAL_FRAMESIZE32	96
64 #define _SIGMASK_COPY_SIZE32	(sizeof(u32)*2)
65 
66 struct sigcontext32
67 {
68 	__u32	oldmask[_COMPAT_NSIG_WORDS];
69 	__u32	sregs;				/* pointer */
70 };
71 
72 /* asm/signal.h */
73 
74 /* asm/ucontext.h */
75 struct ucontext32 {
76 	__u32			uc_flags;
77 	__u32			uc_link;	/* pointer */
78 	compat_stack_t		uc_stack;
79 	_sigregs32		uc_mcontext;
80 	compat_sigset_t		uc_sigmask;
81 	/* Allow for uc_sigmask growth.  Glibc uses a 1024-bit sigset_t.  */
82 	unsigned char		__unused[128 - sizeof(compat_sigset_t)];
83 	_sigregs_ext32		uc_mcontext_ext;
84 };
85 
86 struct stat64_emu31;
87 struct mmap_arg_struct_emu31;
88 struct fadvise64_64_args;
89 
90 long compat_sys_s390_chown16(const char __user *filename, u16 user, u16 group);
91 long compat_sys_s390_lchown16(const char __user *filename, u16 user, u16 group);
92 long compat_sys_s390_fchown16(unsigned int fd, u16 user, u16 group);
93 long compat_sys_s390_setregid16(u16 rgid, u16 egid);
94 long compat_sys_s390_setgid16(u16 gid);
95 long compat_sys_s390_setreuid16(u16 ruid, u16 euid);
96 long compat_sys_s390_setuid16(u16 uid);
97 long compat_sys_s390_setresuid16(u16 ruid, u16 euid, u16 suid);
98 long compat_sys_s390_getresuid16(u16 __user *ruid, u16 __user *euid, u16 __user *suid);
99 long compat_sys_s390_setresgid16(u16 rgid, u16 egid, u16 sgid);
100 long compat_sys_s390_getresgid16(u16 __user *rgid, u16 __user *egid, u16 __user *sgid);
101 long compat_sys_s390_setfsuid16(u16 uid);
102 long compat_sys_s390_setfsgid16(u16 gid);
103 long compat_sys_s390_getgroups16(int gidsetsize, u16 __user *grouplist);
104 long compat_sys_s390_setgroups16(int gidsetsize, u16 __user *grouplist);
105 long compat_sys_s390_getuid16(void);
106 long compat_sys_s390_geteuid16(void);
107 long compat_sys_s390_getgid16(void);
108 long compat_sys_s390_getegid16(void);
109 long compat_sys_s390_truncate64(const char __user *path, u32 high, u32 low);
110 long compat_sys_s390_ftruncate64(unsigned int fd, u32 high, u32 low);
111 long compat_sys_s390_pread64(unsigned int fd, char __user *ubuf, compat_size_t count, u32 high, u32 low);
112 long compat_sys_s390_pwrite64(unsigned int fd, const char __user *ubuf, compat_size_t count, u32 high, u32 low);
113 long compat_sys_s390_readahead(int fd, u32 high, u32 low, s32 count);
114 long compat_sys_s390_stat64(const char __user *filename, struct stat64_emu31 __user *statbuf);
115 long compat_sys_s390_lstat64(const char __user *filename, struct stat64_emu31 __user *statbuf);
116 long compat_sys_s390_fstat64(unsigned int fd, struct stat64_emu31 __user *statbuf);
117 long compat_sys_s390_fstatat64(unsigned int dfd, const char __user *filename, struct stat64_emu31 __user *statbuf, int flag);
118 long compat_sys_s390_old_mmap(struct mmap_arg_struct_emu31 __user *arg);
119 long compat_sys_s390_mmap2(struct mmap_arg_struct_emu31 __user *arg);
120 long compat_sys_s390_read(unsigned int fd, char __user * buf, compat_size_t count);
121 long compat_sys_s390_write(unsigned int fd, const char __user * buf, compat_size_t count);
122 long compat_sys_s390_fadvise64(int fd, u32 high, u32 low, compat_size_t len, int advise);
123 long compat_sys_s390_fadvise64_64(struct fadvise64_64_args __user *args);
124 long compat_sys_s390_sync_file_range(int fd, u32 offhigh, u32 offlow, u32 nhigh, u32 nlow, unsigned int flags);
125 long compat_sys_s390_fallocate(int fd, int mode, u32 offhigh, u32 offlow, u32 lenhigh, u32 lenlow);
126 long compat_sys_sigreturn(void);
127 long compat_sys_rt_sigreturn(void);
128 
129 #endif /* _ASM_S390X_S390_H */
130