LXR linux/arch/s390/kernel/compat

   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 */
  16struct ipc_kludge_32 {
  17        __u32   msgp;                           /* pointer              */
  18        __s32   msgtyp;
  19};
  20
  21/* asm/sigcontext.h */
  22typedef union
  23{
  24        __u64   d;
  25        __u32   f; 
  26} freg_t32;
  27
  28typedef struct
  29{
  30        unsigned int    fpc;
  31        unsigned int    pad;
  32        freg_t32        fprs[__NUM_FPRS];              
  33} _s390_fp_regs32;
  34
  35typedef struct 
  36{
  37        __u32   mask;
  38        __u32   addr;
  39} _psw_t32 __attribute__ ((aligned(8)));
  40
  41typedef struct
  42{
  43        _psw_t32        psw;
  44        __u32           gprs[__NUM_GPRS];
  45        __u32           acrs[__NUM_ACRS];
  46} _s390_regs_common32;
  47
  48typedef struct
  49{
  50        _s390_regs_common32 regs;
  51        _s390_fp_regs32     fpregs;
  52} _sigregs32;
  53
  54typedef 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
  67struct sigcontext32
  68{
  69        __u32   oldmask[_COMPAT_NSIG_WORDS];
  70        __u32   sregs;                          /* pointer */
  71};
  72
  73/* asm/signal.h */
  74
  75/* asm/ucontext.h */
  76struct 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
  87struct stat64_emu31;
  88struct mmap_arg_struct_emu31;
  89struct fadvise64_64_args;
  90
  91long compat_sys_s390_chown16(const char __user *filename, u16 user, u16 group);
  92long compat_sys_s390_lchown16(const char __user *filename, u16 user, u16 group);
  93long compat_sys_s390_fchown16(unsigned int fd, u16 user, u16 group);
  94long compat_sys_s390_setregid16(u16 rgid, u16 egid);
  95long compat_sys_s390_setgid16(u16 gid);
  96long compat_sys_s390_setreuid16(u16 ruid, u16 euid);
  97long compat_sys_s390_setuid16(u16 uid);
  98long compat_sys_s390_setresuid16(u16 ruid, u16 euid, u16 suid);
  99long compat_sys_s390_getresuid16(u16 __user *ruid, u16 __user *euid, u16 __user *suid);
 100long compat_sys_s390_setresgid16(u16 rgid, u16 egid, u16 sgid);
 101long compat_sys_s390_getresgid16(u16 __user *rgid, u16 __user *egid, u16 __user *sgid);
 102long compat_sys_s390_setfsuid16(u16 uid);
 103long compat_sys_s390_setfsgid16(u16 gid);
 104long compat_sys_s390_getgroups16(int gidsetsize, u16 __user *grouplist);
 105long compat_sys_s390_setgroups16(int gidsetsize, u16 __user *grouplist);
 106long compat_sys_s390_getuid16(void);
 107long compat_sys_s390_geteuid16(void);
 108long compat_sys_s390_getgid16(void);
 109long compat_sys_s390_getegid16(void);
 110long compat_sys_s390_truncate64(const char __user *path, u32 high, u32 low);
 111long compat_sys_s390_ftruncate64(unsigned int fd, u32 high, u32 low);
 112long compat_sys_s390_pread64(unsigned int fd, char __user *ubuf, compat_size_t count, u32 high, u32 low);
 113long compat_sys_s390_pwrite64(unsigned int fd, const char __user *ubuf, compat_size_t count, u32 high, u32 low);
 114long compat_sys_s390_readahead(int fd, u32 high, u32 low, s32 count);
 115long compat_sys_s390_stat64(const char __user *filename, struct stat64_emu31 __user *statbuf);
 116long compat_sys_s390_lstat64(const char __user *filename, struct stat64_emu31 __user *statbuf);
 117long compat_sys_s390_fstat64(unsigned int fd, struct stat64_emu31 __user *statbuf);
 118long compat_sys_s390_fstatat64(unsigned int dfd, const char __user *filename, struct stat64_emu31 __user *statbuf, int flag);
 119long compat_sys_s390_old_mmap(struct mmap_arg_struct_emu31 __user *arg);
 120long compat_sys_s390_mmap2(struct mmap_arg_struct_emu31 __user *arg);
 121long compat_sys_s390_read(unsigned int fd, char __user * buf, compat_size_t count);
 122long compat_sys_s390_write(unsigned int fd, const char __user * buf, compat_size_t count);
 123long compat_sys_s390_fadvise64(int fd, u32 high, u32 low, compat_size_t len, int advise);
 124long compat_sys_s390_fadvise64_64(struct fadvise64_64_args __user *args);
 125long compat_sys_s390_sync_file_range(int fd, u32 offhigh, u32 offlow, u32 nhigh, u32 nlow, unsigned int flags);
 126long compat_sys_s390_fallocate(int fd, int mode, u32 offhigh, u32 offlow, u32 lenhigh, u32 lenlow);
 127long compat_sys_sigreturn(void);
 128long compat_sys_rt_sigreturn(void);
 129
 130#endif /* _ASM_S390X_S390_H */
 131