arch/s390/kernel/compat_linux.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef _ASM_S390X_S390_H
   3 #define _ASM_S390X_S390_H
   4
   5 #include <linux/compat.h>
   6 #include <linux/socket.h>
   7 #include <linux/syscalls.h>
   8
   9 /* Macro that masks the high order bit of an 32 bit pointer and converts it*/
  10 /*       to a 64 bit pointer */
  11 #define A(__x) ((unsigned long)((__x) & 0x7FFFFFFFUL))
  12 #define AA(__x)                         \
  13         ((unsigned long)(__x))
  14
  15 /* Now 32bit compatibility types */
  16 struct ipc_kludge_32 {
  17         __u32   msgp;                           /* pointer              */
  18         __s32   msgtyp;
  19 };
  20
  21 /* asm/sigcontext.h */
  22 typedef union
  23 {
  24         __u64   d;
  25         __u32   f;
  26 } freg_t32;
  27
  28 typedef struct
  29 {
  30         unsigned int    fpc;
  31         unsigned int    pad;
  32         freg_t32        fprs[__NUM_FPRS];
  33 } _s390_fp_regs32;
  34
  35 typedef struct
  36 {
  37         __u32   mask;
  38         __u32   addr;
  39 } _psw_t32 __attribute__ ((aligned(8)));
  40
  41 typedef struct
  42 {
  43         _psw_t32        psw;
  44         __u32           gprs[__NUM_GPRS];
  45         __u32           acrs[__NUM_ACRS];
  46 } _s390_regs_common32;
  47
  48 typedef struct
  49 {
  50         _s390_regs_common32 regs;
  51         _s390_fp_regs32     fpregs;
  52 } _sigregs32;
  53
  54 typedef struct
  55 {
  56         __u32 gprs_high[__NUM_GPRS];
  57         __u64 vxrs_low[__NUM_VXRS_LOW];
  58         __vector128 vxrs_high[__NUM_VXRS_HIGH];
  59         __u8 __reserved[128];
  60 } _sigregs_ext32;
  61
  62 #define _SIGCONTEXT_NSIG32      64
  63 #define _SIGCONTEXT_NSIG_BPW32  32
  64 #define __SIGNAL_FRAMESIZE32    96
  65 #define _SIGMASK_COPY_SIZE32    (sizeof(u32)*2)
  66
  67 struct sigcontext32
  68 {
  69         __u32   oldmask[_COMPAT_NSIG_WORDS];
  70         __u32   sregs;                          /* pointer */
  71 };
  72
  73 /* asm/signal.h */
  74
  75 /* asm/ucontext.h */
  76 struct ucontext32 {
  77         __u32                   uc_flags;
  78         __u32                   uc_link;        /* pointer */
  79         compat_stack_t          uc_stack;
  80         _sigregs32              uc_mcontext;
  81         compat_sigset_t         uc_sigmask;
  82         /* Allow for uc_sigmask growth.  Glibc uses a 1024-bit sigset_t.  */
  83         unsigned char           __unused[128 - sizeof(compat_sigset_t)];
  84         _sigregs_ext32          uc_mcontext_ext;
  85 };
  86
  87 struct stat64_emu31;
  88 struct mmap_arg_struct_emu31;
  89 struct fadvise64_64_args;
  90
  91 long compat_sys_s390_chown16(const char __user *filename, u16 user, u16 group);
  92 long compat_sys_s390_lchown16(const char __user *filename, u16 user, u16 group);
  93 long compat_sys_s390_fchown16(unsigned int fd, u16 user, u16 group);
  94 long compat_sys_s390_setregid16(u16 rgid, u16 egid);
  95 long compat_sys_s390_setgid16(u16 gid);
  96 long compat_sys_s390_setreuid16(u16 ruid, u16 euid);
  97 long compat_sys_s390_setuid16(u16 uid);
  98 long compat_sys_s390_setresuid16(u16 ruid, u16 euid, u16 suid);
  99 long compat_sys_s390_getresuid16(u16 __user *ruid, u16 __user *euid, u16 __user *suid);
 100 long compat_sys_s390_setresgid16(u16 rgid, u16 egid, u16 sgid);
 101 long compat_sys_s390_getresgid16(u16 __user *rgid, u16 __user *egid, u16 __user *sgid);
 102 long compat_sys_s390_setfsuid16(u16 uid);
 103 long compat_sys_s390_setfsgid16(u16 gid);
 104 long compat_sys_s390_getgroups16(int gidsetsize, u16 __user *grouplist);
 105 long compat_sys_s390_setgroups16(int gidsetsize, u16 __user *grouplist);
 106 long compat_sys_s390_getuid16(void);
 107 long compat_sys_s390_geteuid16(void);
 108 long compat_sys_s390_getgid16(void);
 109 long compat_sys_s390_getegid16(void);
 110 long compat_sys_s390_truncate64(const char __user *path, u32 high, u32 low);
 111 long compat_sys_s390_ftruncate64(unsigned int fd, u32 high, u32 low);
 112 long compat_sys_s390_pread64(unsigned int fd, char __user *ubuf, compat_size_t count, u32 high, u32 low);
 113 long compat_sys_s390_pwrite64(unsigned int fd, const char __user *ubuf, compat_size_t count, u32 high, u32 low);
 114 long compat_sys_s390_readahead(int fd, u32 high, u32 low, s32 count);
 115 long compat_sys_s390_stat64(const char __user *filename, struct stat64_emu31 __user *statbuf);
 116 long compat_sys_s390_lstat64(const char __user *filename, struct stat64_emu31 __user *statbuf);
 117 long compat_sys_s390_fstat64(unsigned int fd, struct stat64_emu31 __user *statbuf);
 118 long compat_sys_s390_fstatat64(unsigned int dfd, const char __user *filename, struct stat64_emu31 __user *statbuf, int flag);
 119 long compat_sys_s390_old_mmap(struct mmap_arg_struct_emu31 __user *arg);
 120 long compat_sys_s390_mmap2(struct mmap_arg_struct_emu31 __user *arg);
 121 long compat_sys_s390_read(unsigned int fd, char __user * buf, compat_size_t count);
 122 long compat_sys_s390_write(unsigned int fd, const char __user * buf, compat_size_t count);
 123 long compat_sys_s390_fadvise64(int fd, u32 high, u32 low, compat_size_t len, int advise);
 124 long compat_sys_s390_fadvise64_64(struct fadvise64_64_args __user *args);
 125 long compat_sys_s390_sync_file_range(int fd, u32 offhigh, u32 offlow, u32 nhigh, u32 nlow, unsigned int flags);
 126 long compat_sys_s390_fallocate(int fd, int mode, u32 offhigh, u32 offlow, u32 lenhigh, u32 lenlow);
 127 long compat_sys_sigreturn(void);
 128 long compat_sys_rt_sigreturn(void);
 129
 130 #endif /* _ASM_S390X_S390_H */