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Diffstat (limited to 'arch/parisc/include/asm/compat.h')
| -rw-r--r-- | arch/parisc/include/asm/compat.h | 223 |
1 files changed, 223 insertions, 0 deletions
diff --git a/arch/parisc/include/asm/compat.h b/arch/parisc/include/asm/compat.h new file mode 100644 index 000000000..ab8a54771 --- /dev/null +++ b/arch/parisc/include/asm/compat.h @@ -0,0 +1,223 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _ASM_PARISC_COMPAT_H +#define _ASM_PARISC_COMPAT_H +/* + * Architecture specific compatibility types + */ +#include <linux/types.h> +#include <linux/sched.h> +#include <linux/thread_info.h> + +#define COMPAT_USER_HZ 100 +#define COMPAT_UTS_MACHINE "parisc\0\0" + +typedef u32 compat_size_t; +typedef s32 compat_ssize_t; +typedef s32 compat_clock_t; +typedef s32 compat_pid_t; +typedef u32 __compat_uid_t; +typedef u32 __compat_gid_t; +typedef u32 __compat_uid32_t; +typedef u32 __compat_gid32_t; +typedef u16 compat_mode_t; +typedef u32 compat_ino_t; +typedef u32 compat_dev_t; +typedef s32 compat_off_t; +typedef s64 compat_loff_t; +typedef u16 compat_nlink_t; +typedef u16 compat_ipc_pid_t; +typedef s32 compat_daddr_t; +typedef u32 compat_caddr_t; +typedef s32 compat_key_t; +typedef s32 compat_timer_t; + +typedef s32 compat_int_t; +typedef s32 compat_long_t; +typedef s64 compat_s64; +typedef u32 compat_uint_t; +typedef u32 compat_ulong_t; +typedef u64 compat_u64; +typedef u32 compat_uptr_t; + +struct compat_stat { + compat_dev_t st_dev; /* dev_t is 32 bits on parisc */ + compat_ino_t st_ino; /* 32 bits */ + compat_mode_t st_mode; /* 16 bits */ + compat_nlink_t st_nlink; /* 16 bits */ + u16 st_reserved1; /* old st_uid */ + u16 st_reserved2; /* old st_gid */ + compat_dev_t st_rdev; + compat_off_t st_size; + compat_time_t st_atime; + u32 st_atime_nsec; + compat_time_t st_mtime; + u32 st_mtime_nsec; + compat_time_t st_ctime; + u32 st_ctime_nsec; + s32 st_blksize; + s32 st_blocks; + u32 __unused1; /* ACL stuff */ + compat_dev_t __unused2; /* network */ + compat_ino_t __unused3; /* network */ + u32 __unused4; /* cnodes */ + u16 __unused5; /* netsite */ + short st_fstype; + compat_dev_t st_realdev; + u16 st_basemode; + u16 st_spareshort; + __compat_uid32_t st_uid; + __compat_gid32_t st_gid; + u32 st_spare4[3]; +}; + +struct compat_flock { + short l_type; + short l_whence; + compat_off_t l_start; + compat_off_t l_len; + compat_pid_t l_pid; +}; + +struct compat_flock64 { + short l_type; + short l_whence; + compat_loff_t l_start; + compat_loff_t l_len; + compat_pid_t l_pid; +}; + +struct compat_statfs { + s32 f_type; + s32 f_bsize; + s32 f_blocks; + s32 f_bfree; + s32 f_bavail; + s32 f_files; + s32 f_ffree; + __kernel_fsid_t f_fsid; + s32 f_namelen; + s32 f_frsize; + s32 f_flags; + s32 f_spare[4]; +}; + +struct compat_sigcontext { + compat_int_t sc_flags; + compat_int_t sc_gr[32]; /* PSW in sc_gr[0] */ + u64 sc_fr[32]; + compat_int_t sc_iasq[2]; + compat_int_t sc_iaoq[2]; + compat_int_t sc_sar; /* cr11 */ +}; + +#define COMPAT_RLIM_INFINITY 0xffffffff + +typedef u32 compat_old_sigset_t; /* at least 32 bits */ + +#define _COMPAT_NSIG 64 +#define _COMPAT_NSIG_BPW 32 + +typedef u32 compat_sigset_word; + +#define COMPAT_OFF_T_MAX 0x7fffffff + +struct compat_ipc64_perm { + compat_key_t key; + __compat_uid_t uid; + __compat_gid_t gid; + __compat_uid_t cuid; + __compat_gid_t cgid; + unsigned short int __pad1; + compat_mode_t mode; + unsigned short int __pad2; + unsigned short int seq; + unsigned int __pad3; + unsigned long __unused1; /* yes they really are 64bit pads */ + unsigned long __unused2; +}; + +struct compat_semid64_ds { + struct compat_ipc64_perm sem_perm; + unsigned int sem_otime_high; + unsigned int sem_otime; + unsigned int sem_ctime_high; + unsigned int sem_ctime; + compat_ulong_t sem_nsems; + compat_ulong_t __unused3; + compat_ulong_t __unused4; +}; + +struct compat_msqid64_ds { + struct compat_ipc64_perm msg_perm; + unsigned int msg_stime_high; + unsigned int msg_stime; + unsigned int msg_rtime_high; + unsigned int msg_rtime; + unsigned int msg_ctime_high; + unsigned int msg_ctime; + compat_ulong_t msg_cbytes; + compat_ulong_t msg_qnum; + compat_ulong_t msg_qbytes; + compat_pid_t msg_lspid; + compat_pid_t msg_lrpid; + compat_ulong_t __unused4; + compat_ulong_t __unused5; +}; + +struct compat_shmid64_ds { + struct compat_ipc64_perm shm_perm; + unsigned int shm_atime_high; + unsigned int shm_atime; + unsigned int shm_dtime_high; + unsigned int shm_dtime; + unsigned int shm_ctime_high; + unsigned int shm_ctime; + unsigned int __unused4; + compat_size_t shm_segsz; + compat_pid_t shm_cpid; + compat_pid_t shm_lpid; + compat_ulong_t shm_nattch; + compat_ulong_t __unused5; + compat_ulong_t __unused6; +}; + +/* + * The type of struct elf_prstatus.pr_reg in compatible core dumps. + */ +#define COMPAT_ELF_NGREG 80 +typedef compat_ulong_t compat_elf_gregset_t[COMPAT_ELF_NGREG]; + +/* + * A pointer passed in from user mode. This should not + * be used for syscall parameters, just declare them + * as pointers because the syscall entry code will have + * appropriately converted them already. + */ + +static inline void __user *compat_ptr(compat_uptr_t uptr) +{ + return (void __user *)(unsigned long)uptr; +} + +static inline compat_uptr_t ptr_to_compat(void __user *uptr) +{ + return (u32)(unsigned long)uptr; +} + +static __inline__ void __user *arch_compat_alloc_user_space(long len) +{ + struct pt_regs *regs = ¤t->thread.regs; + return (void __user *)regs->gr[30]; +} + +static inline int __is_compat_task(struct task_struct *t) +{ + return test_ti_thread_flag(task_thread_info(t), TIF_32BIT); +} + +static inline int is_compat_task(void) +{ + return __is_compat_task(current); +} + +#endif /* _ASM_PARISC_COMPAT_H */ |