linux/arch/parisc/include/asm/compat.h
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   1/* SPDX-License-Identifier: GPL-2.0 */
   2#ifndef _ASM_PARISC_COMPAT_H
   3#define _ASM_PARISC_COMPAT_H
   4/*
   5 * Architecture specific compatibility types
   6 */
   7#include <linux/types.h>
   8#include <linux/sched.h>
   9#include <linux/thread_info.h>
  10
  11#define compat_mode_t compat_mode_t
  12typedef u16     compat_mode_t;
  13
  14#define compat_ipc_pid_t compat_ipc_pid_t
  15typedef u16     compat_ipc_pid_t;
  16
  17#define compat_ipc64_perm compat_ipc64_perm
  18
  19#include <asm-generic/compat.h>
  20
  21#define COMPAT_UTS_MACHINE      "parisc\0\0"
  22
  23typedef u16     compat_nlink_t;
  24
  25struct compat_stat {
  26        compat_dev_t            st_dev; /* dev_t is 32 bits on parisc */
  27        compat_ino_t            st_ino; /* 32 bits */
  28        compat_mode_t           st_mode;        /* 16 bits */
  29        compat_nlink_t          st_nlink;       /* 16 bits */
  30        u16                     st_reserved1;   /* old st_uid */
  31        u16                     st_reserved2;   /* old st_gid */
  32        compat_dev_t            st_rdev;
  33        compat_off_t            st_size;
  34        old_time32_t            st_atime;
  35        u32                     st_atime_nsec;
  36        old_time32_t            st_mtime;
  37        u32                     st_mtime_nsec;
  38        old_time32_t            st_ctime;
  39        u32                     st_ctime_nsec;
  40        s32                     st_blksize;
  41        s32                     st_blocks;
  42        u32                     __unused1;      /* ACL stuff */
  43        compat_dev_t            __unused2;      /* network */
  44        compat_ino_t            __unused3;      /* network */
  45        u32                     __unused4;      /* cnodes */
  46        u16                     __unused5;      /* netsite */
  47        short                   st_fstype;
  48        compat_dev_t            st_realdev;
  49        u16                     st_basemode;
  50        u16                     st_spareshort;
  51        __compat_uid32_t        st_uid;
  52        __compat_gid32_t        st_gid;
  53        u32                     st_spare4[3];
  54};
  55
  56struct compat_sigcontext {
  57        compat_int_t sc_flags;
  58        compat_int_t sc_gr[32]; /* PSW in sc_gr[0] */
  59        u64 sc_fr[32];
  60        compat_int_t sc_iasq[2];
  61        compat_int_t sc_iaoq[2];
  62        compat_int_t sc_sar; /* cr11 */
  63};
  64
  65struct compat_ipc64_perm {
  66        compat_key_t key;
  67        __compat_uid_t uid;
  68        __compat_gid_t gid;
  69        __compat_uid_t cuid;
  70        __compat_gid_t cgid;
  71        unsigned short int __pad1;
  72        compat_mode_t mode;
  73        unsigned short int __pad2;
  74        unsigned short int seq;
  75        unsigned int __pad3;
  76        unsigned long __unused1;        /* yes they really are 64bit pads */
  77        unsigned long __unused2;
  78};
  79
  80struct compat_semid64_ds {
  81        struct compat_ipc64_perm sem_perm;
  82        unsigned int sem_otime_high;
  83        unsigned int sem_otime;
  84        unsigned int sem_ctime_high;
  85        unsigned int sem_ctime;
  86        compat_ulong_t sem_nsems;
  87        compat_ulong_t __unused3;
  88        compat_ulong_t __unused4;
  89};
  90
  91struct compat_msqid64_ds {
  92        struct compat_ipc64_perm msg_perm;
  93        unsigned int msg_stime_high;
  94        unsigned int msg_stime;
  95        unsigned int msg_rtime_high;
  96        unsigned int msg_rtime;
  97        unsigned int msg_ctime_high;
  98        unsigned int msg_ctime;
  99        compat_ulong_t msg_cbytes;
 100        compat_ulong_t msg_qnum;
 101        compat_ulong_t msg_qbytes;
 102        compat_pid_t msg_lspid;
 103        compat_pid_t msg_lrpid;
 104        compat_ulong_t __unused4;
 105        compat_ulong_t __unused5;
 106};
 107
 108struct compat_shmid64_ds {
 109        struct compat_ipc64_perm shm_perm;
 110        unsigned int shm_atime_high;
 111        unsigned int shm_atime;
 112        unsigned int shm_dtime_high;
 113        unsigned int shm_dtime;
 114        unsigned int shm_ctime_high;
 115        unsigned int shm_ctime;
 116        unsigned int __unused4;
 117        compat_size_t shm_segsz;
 118        compat_pid_t shm_cpid;
 119        compat_pid_t shm_lpid;
 120        compat_ulong_t shm_nattch;
 121        compat_ulong_t __unused5;
 122        compat_ulong_t __unused6;
 123};
 124
 125/*
 126 * The type of struct elf_prstatus.pr_reg in compatible core dumps.
 127 */
 128#define COMPAT_ELF_NGREG 80
 129typedef compat_ulong_t compat_elf_gregset_t[COMPAT_ELF_NGREG];
 130
 131static inline int __is_compat_task(struct task_struct *t)
 132{
 133        return test_tsk_thread_flag(t, TIF_32BIT);
 134}
 135
 136static inline int is_compat_task(void)
 137{
 138        return __is_compat_task(current);
 139}
 140
 141#endif /* _ASM_PARISC_COMPAT_H */
 142