296 lines
7.4 KiB
C
296 lines
7.4 KiB
C
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/*
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* Copyright 2010 Tilera Corporation. All Rights Reserved.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation, version 2.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
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* NON INFRINGEMENT. See the GNU General Public License for
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* more details.
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*/
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#ifndef _ASM_TILE_COMPAT_H
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#define _ASM_TILE_COMPAT_H
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/*
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* Architecture specific compatibility types
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*/
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#include <linux/types.h>
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#include <linux/sched.h>
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#define COMPAT_USER_HZ 100
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/* "long" and pointer-based types are different. */
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typedef s32 compat_long_t;
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typedef u32 compat_ulong_t;
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typedef u32 compat_size_t;
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typedef s32 compat_ssize_t;
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typedef s32 compat_off_t;
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typedef s32 compat_time_t;
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typedef s32 compat_clock_t;
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typedef u32 compat_ino_t;
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typedef u32 compat_caddr_t;
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typedef u32 compat_uptr_t;
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/* Many types are "int" or otherwise the same. */
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typedef __kernel_pid_t compat_pid_t;
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typedef __kernel_uid_t __compat_uid_t;
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typedef __kernel_gid_t __compat_gid_t;
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typedef __kernel_uid32_t __compat_uid32_t;
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typedef __kernel_uid32_t __compat_gid32_t;
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typedef __kernel_mode_t compat_mode_t;
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typedef __kernel_dev_t compat_dev_t;
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typedef __kernel_loff_t compat_loff_t;
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typedef __kernel_ipc_pid_t compat_ipc_pid_t;
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typedef __kernel_daddr_t compat_daddr_t;
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typedef __kernel_fsid_t compat_fsid_t;
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typedef __kernel_timer_t compat_timer_t;
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typedef __kernel_key_t compat_key_t;
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typedef int compat_int_t;
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typedef s64 compat_s64;
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typedef uint compat_uint_t;
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typedef u64 compat_u64;
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/* We use the same register dump format in 32-bit images. */
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typedef unsigned long compat_elf_greg_t;
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#define COMPAT_ELF_NGREG (sizeof(struct pt_regs) / sizeof(compat_elf_greg_t))
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typedef compat_elf_greg_t compat_elf_gregset_t[COMPAT_ELF_NGREG];
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struct compat_timespec {
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compat_time_t tv_sec;
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s32 tv_nsec;
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};
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struct compat_timeval {
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compat_time_t tv_sec;
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s32 tv_usec;
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};
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#define compat_stat stat
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#define compat_statfs statfs
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struct compat_sysctl {
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unsigned int name;
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int nlen;
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unsigned int oldval;
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unsigned int oldlenp;
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unsigned int newval;
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unsigned int newlen;
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unsigned int __unused[4];
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};
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struct compat_flock {
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short l_type;
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short l_whence;
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compat_off_t l_start;
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compat_off_t l_len;
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compat_pid_t l_pid;
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};
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#define F_GETLK64 12 /* using 'struct flock64' */
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#define F_SETLK64 13
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#define F_SETLKW64 14
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struct compat_flock64 {
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short l_type;
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short l_whence;
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compat_loff_t l_start;
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compat_loff_t l_len;
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compat_pid_t l_pid;
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};
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#define COMPAT_RLIM_INFINITY 0xffffffff
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#define _COMPAT_NSIG 64
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#define _COMPAT_NSIG_BPW 32
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typedef u32 compat_sigset_word;
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typedef union compat_sigval {
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compat_int_t sival_int;
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compat_uptr_t sival_ptr;
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} compat_sigval_t;
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#define COMPAT_SI_PAD_SIZE (128/sizeof(int) - 3)
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typedef struct compat_siginfo {
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int si_signo;
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int si_errno;
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int si_code;
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union {
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int _pad[COMPAT_SI_PAD_SIZE];
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/* kill() */
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struct {
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unsigned int _pid; /* sender's pid */
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unsigned int _uid; /* sender's uid */
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} _kill;
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/* POSIX.1b timers */
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struct {
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compat_timer_t _tid; /* timer id */
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int _overrun; /* overrun count */
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compat_sigval_t _sigval; /* same as below */
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int _sys_private; /* not to be passed to user */
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int _overrun_incr; /* amount to add to overrun */
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} _timer;
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/* POSIX.1b signals */
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struct {
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unsigned int _pid; /* sender's pid */
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unsigned int _uid; /* sender's uid */
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compat_sigval_t _sigval;
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} _rt;
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/* SIGCHLD */
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struct {
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unsigned int _pid; /* which child */
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unsigned int _uid; /* sender's uid */
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int _status; /* exit code */
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compat_clock_t _utime;
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compat_clock_t _stime;
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} _sigchld;
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/* SIGILL, SIGFPE, SIGSEGV, SIGBUS */
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struct {
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unsigned int _addr; /* faulting insn/memory ref. */
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#ifdef __ARCH_SI_TRAPNO
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int _trapno; /* TRAP # which caused the signal */
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#endif
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} _sigfault;
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/* SIGPOLL */
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struct {
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int _band; /* POLL_IN, POLL_OUT, POLL_MSG */
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int _fd;
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} _sigpoll;
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} _sifields;
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} compat_siginfo_t;
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#define COMPAT_OFF_T_MAX 0x7fffffff
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struct compat_ipc64_perm {
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compat_key_t key;
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__compat_uid32_t uid;
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__compat_gid32_t gid;
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__compat_uid32_t cuid;
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__compat_gid32_t cgid;
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unsigned short mode;
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unsigned short __pad1;
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unsigned short seq;
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unsigned short __pad2;
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compat_ulong_t unused1;
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compat_ulong_t unused2;
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};
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struct compat_semid64_ds {
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struct compat_ipc64_perm sem_perm;
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compat_time_t sem_otime;
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compat_ulong_t __unused1;
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compat_time_t sem_ctime;
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compat_ulong_t __unused2;
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compat_ulong_t sem_nsems;
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compat_ulong_t __unused3;
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compat_ulong_t __unused4;
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};
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struct compat_msqid64_ds {
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struct compat_ipc64_perm msg_perm;
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compat_time_t msg_stime;
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compat_ulong_t __unused1;
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compat_time_t msg_rtime;
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compat_ulong_t __unused2;
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compat_time_t msg_ctime;
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compat_ulong_t __unused3;
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compat_ulong_t msg_cbytes;
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compat_ulong_t msg_qnum;
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compat_ulong_t msg_qbytes;
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compat_pid_t msg_lspid;
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compat_pid_t msg_lrpid;
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compat_ulong_t __unused4;
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compat_ulong_t __unused5;
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};
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struct compat_shmid64_ds {
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struct compat_ipc64_perm shm_perm;
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compat_size_t shm_segsz;
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compat_time_t shm_atime;
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compat_ulong_t __unused1;
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compat_time_t shm_dtime;
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compat_ulong_t __unused2;
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compat_time_t shm_ctime;
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compat_ulong_t __unused3;
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compat_pid_t shm_cpid;
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compat_pid_t shm_lpid;
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compat_ulong_t shm_nattch;
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compat_ulong_t __unused4;
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compat_ulong_t __unused5;
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};
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/*
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* A pointer passed in from user mode. This should not
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* be used for syscall parameters, just declare them
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* as pointers because the syscall entry code will have
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* appropriately converted them already.
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*/
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static inline void __user *compat_ptr(compat_uptr_t uptr)
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{
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return (void __user *)(long)(s32)uptr;
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}
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static inline compat_uptr_t ptr_to_compat(void __user *uptr)
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{
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return (u32)(unsigned long)uptr;
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}
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/* Sign-extend when storing a kernel pointer to a user's ptregs. */
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static inline unsigned long ptr_to_compat_reg(void __user *uptr)
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{
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return (long)(int)(long __force)uptr;
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}
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static inline void __user *arch_compat_alloc_user_space(long len)
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{
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struct pt_regs *regs = task_pt_regs(current);
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return (void __user *)regs->sp - len;
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}
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static inline int is_compat_task(void)
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{
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return current_thread_info()->status & TS_COMPAT;
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}
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extern int compat_setup_rt_frame(struct ksignal *ksig, sigset_t *set,
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struct pt_regs *regs);
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/* Compat syscalls. */
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struct compat_siginfo;
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struct compat_sigaltstack;
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long compat_sys_rt_sigreturn(void);
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long compat_sys_truncate64(char __user *filename, u32 dummy, u32 low, u32 high);
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long compat_sys_ftruncate64(unsigned int fd, u32 dummy, u32 low, u32 high);
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long compat_sys_pread64(unsigned int fd, char __user *ubuf, size_t count,
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u32 dummy, u32 low, u32 high);
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long compat_sys_pwrite64(unsigned int fd, char __user *ubuf, size_t count,
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u32 dummy, u32 low, u32 high);
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long compat_sys_sync_file_range2(int fd, unsigned int flags,
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u32 offset_lo, u32 offset_hi,
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u32 nbytes_lo, u32 nbytes_hi);
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long compat_sys_fallocate(int fd, int mode,
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u32 offset_lo, u32 offset_hi,
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u32 len_lo, u32 len_hi);
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long compat_sys_llseek(unsigned int fd, unsigned int offset_high,
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unsigned int offset_low, loff_t __user * result,
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unsigned int origin);
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/* Assembly trampoline to avoid clobbering r0. */
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long _compat_sys_rt_sigreturn(void);
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#endif /* _ASM_TILE_COMPAT_H */
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