cregit-Linux how code gets into the kernel

Release 4.14 arch/s390/include/asm/compat.h

Directory: arch/s390/include/asm
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_S390X_COMPAT_H

#define _ASM_S390X_COMPAT_H
/*
 * Architecture specific compatibility types
 */
#include <linux/types.h>
#include <linux/sched.h>
#include <linux/sched/task_stack.h>
#include <linux/thread_info.h>


#define __TYPE_IS_PTR(t) (!__builtin_types_compatible_p( \
                                typeof(0?(__force t)0:0ULL), u64))


#define __SC_DELOUSE(t,v) ({ \
        BUILD_BUG_ON(sizeof(t) > 4 && !__TYPE_IS_PTR(t)); \
        (__force t)(__TYPE_IS_PTR(t) ? ((v) & 0x7fffffff) : (v)); \
})


#define PSW32_MASK_PER		0x40000000UL

#define PSW32_MASK_DAT		0x04000000UL

#define PSW32_MASK_IO		0x02000000UL

#define PSW32_MASK_EXT		0x01000000UL

#define PSW32_MASK_KEY		0x00F00000UL

#define PSW32_MASK_BASE		0x00080000UL	
/* Always one */

#define PSW32_MASK_MCHECK	0x00040000UL

#define PSW32_MASK_WAIT		0x00020000UL

#define PSW32_MASK_PSTATE	0x00010000UL

#define PSW32_MASK_ASC		0x0000C000UL

#define PSW32_MASK_CC		0x00003000UL

#define PSW32_MASK_PM		0x00000f00UL

#define PSW32_MASK_RI		0x00000080UL


#define PSW32_MASK_USER		0x0000FF00UL


#define PSW32_ADDR_AMODE	0x80000000UL

#define PSW32_ADDR_INSN		0x7FFFFFFFUL


#define PSW32_DEFAULT_KEY	(((u32) PAGE_DEFAULT_ACC) << 20)


#define PSW32_ASC_PRIMARY	0x00000000UL

#define PSW32_ASC_ACCREG	0x00004000UL

#define PSW32_ASC_SECONDARY	0x00008000UL

#define PSW32_ASC_HOME		0x0000C000UL


#define PSW32_USER_BITS (PSW32_MASK_DAT | PSW32_MASK_IO | PSW32_MASK_EXT | \
                         PSW32_DEFAULT_KEY | PSW32_MASK_BASE | \
                         PSW32_MASK_MCHECK | PSW32_MASK_PSTATE | \
                         PSW32_ASC_PRIMARY)


#define COMPAT_USER_HZ		100

#define COMPAT_UTS_MACHINE	"s390\0\0\0\0"


typedef u32		compat_size_t;

typedef s32		compat_ssize_t;

typedef s32		compat_time_t;

typedef s32		compat_clock_t;

typedef s32		compat_pid_t;

typedef u16		__compat_uid_t;

typedef u16		__compat_gid_t;

typedef u32		__compat_uid32_t;

typedef u32		__compat_gid32_t;

typedef u16		compat_mode_t;

typedef u32		compat_ino_t;

typedef u16		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 __kernel_fsid_t	compat_fsid_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;

typedef struct {
	
u32 mask;
	
u32 addr;
} __aligned(8) psw_compat_t;

typedef struct {
	
psw_compat_t psw;
	
u32 gprs[NUM_GPRS];
	
u32 acrs[NUM_ACRS];
	
u32 orig_gpr2;

} s390_compat_regs;

typedef struct {
	
u32 gprs_high[NUM_GPRS];

} s390_compat_regs_high;


struct compat_timespec {
	
compat_time_t	tv_sec;
	
s32		tv_nsec;
};


struct compat_timeval {
	
compat_time_t	tv_sec;
	
s32		tv_usec;
};


struct compat_stat {
	
compat_dev_t	st_dev;
	
u16		__pad1;
	
compat_ino_t	st_ino;
	
compat_mode_t	st_mode;
	
compat_nlink_t	st_nlink;
	
__compat_uid_t	st_uid;
	
__compat_gid_t	st_gid;
	
compat_dev_t	st_rdev;
	
u16		__pad2;
	
u32		st_size;
	
u32		st_blksize;
	
u32		st_blocks;
	
u32		st_atime;
	
u32		st_atime_nsec;
	
u32		st_mtime;
	
u32		st_mtime_nsec;
	
u32		st_ctime;
	
u32		st_ctime_nsec;
	
u32		__unused4;
	
u32		__unused5;
};


struct compat_flock {
	
short		l_type;
	
short		l_whence;
	
compat_off_t	l_start;
	
compat_off_t	l_len;
	
compat_pid_t	l_pid;
};


#define F_GETLK64       12

#define F_SETLK64       13

#define F_SETLKW64      14    


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 {
	
u32		f_type;
	
u32		f_bsize;
	
u32		f_blocks;
	
u32		f_bfree;
	
u32		f_bavail;
	
u32		f_files;
	
u32		f_ffree;
	
compat_fsid_t	f_fsid;
	
u32		f_namelen;
	
u32		f_frsize;
	
u32		f_flags;
	
u32		f_spare[4];
};


struct compat_statfs64 {
	
u32		f_type;
	
u32		f_bsize;
	
u64		f_blocks;
	
u64		f_bfree;
	
u64		f_bavail;
	
u64		f_files;
	
u64		f_ffree;
	
compat_fsid_t	f_fsid;
	
u32		f_namelen;
	
u32		f_frsize;
	
u32		f_flags;
	
u32		f_spare[4];
};


#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;


typedef union compat_sigval {
	
compat_int_t	sival_int;
	
compat_uptr_t	sival_ptr;

} compat_sigval_t;


typedef struct compat_siginfo {
	
int	si_signo;
	
int	si_errno;
	
int	si_code;

	union {
		
int _pad[128/sizeof(int) - 3];

		/* kill() */
		struct {
			
pid_t	_pid;	/* sender's pid */
			
uid_t	_uid;	/* sender's uid */
		
} _kill;

		/* POSIX.1b timers */
		struct {
			
compat_timer_t _tid;		/* timer id */
			
int _overrun;			/* overrun count */
			
compat_sigval_t _sigval;	/* same as below */
			
int _sys_private;	/* not to be passed to user */
		
} _timer;

		/* POSIX.1b signals */
		struct {
			
pid_t			_pid;	/* sender's pid */
			
uid_t			_uid;	/* sender's uid */
			
compat_sigval_t		_sigval;
		
} _rt;

		/* SIGCHLD */
		struct {
			
pid_t			_pid;	/* which child */
			
uid_t			_uid;	/* sender's uid */
			
int			_status;/* exit code */
			
compat_clock_t		_utime;
			
compat_clock_t		_stime;
		
} _sigchld;

		/* SIGILL, SIGFPE, SIGSEGV, SIGBUS */
		struct {
			
__u32	_addr;	/* faulting insn/memory ref. - pointer */
		
} _sigfault;

		/* SIGPOLL */
		struct {
			
int	_band;	/* POLL_IN, POLL_OUT, POLL_MSG */
			
int	_fd;
		
} _sigpoll;
	
} _sifields;

} compat_siginfo_t;

/*
 * How these fields are to be accessed.
 */

#define si_pid		_sifields._kill._pid

#define si_uid		_sifields._kill._uid

#define si_status	_sifields._sigchld._status

#define si_utime	_sifields._sigchld._utime

#define si_stime	_sifields._sigchld._stime

#define si_value	_sifields._rt._sigval

#define si_int		_sifields._rt._sigval.sival_int

#define si_ptr		_sifields._rt._sigval.sival_ptr

#define si_addr		_sifields._sigfault._addr

#define si_band		_sifields._sigpoll._band

#define si_fd		_sifields._sigpoll._fd

#define si_tid		_sifields._timer._tid

#define si_overrun	_sifields._timer._overrun


#define COMPAT_OFF_T_MAX	0x7fffffff

#define COMPAT_LOFF_T_MAX	0x7fffffffffffffffL

/*
 * 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 & 0x7fffffffUL);
}


Contributors
PersonTokensPropCommitsCommitProp
Martin Schwidefsky2692.86%150.00%


Andrew Morton27.14%150.00%


Total28100.00%2100.00%






static inline compat_uptr_t ptr_to_compat(void __user *uptr)
{
	return (u32)(unsigned long)uptr;
}


Contributors
PersonTokensPropCommitsCommitProp
Ingo Molnar22100.00%1100.00%


Total22100.00%1100.00%



#ifdef CONFIG_COMPAT




static inline int is_compat_task(void)
{
	return test_thread_flag(TIF_31BIT);
}


Contributors
PersonTokensPropCommitsCommitProp
Heiko Carstens15100.00%2100.00%


Total15100.00%2100.00%






static inline void __user *arch_compat_alloc_user_space(long len)
{
	unsigned long stack;

	stack = KSTK_ESP(current);
	if (is_compat_task())
		stack &= 0x7fffffffUL;
	return (void __user *) (stack - len);
}


Contributors
PersonTokensPropCommitsCommitProp
Martin Schwidefsky3988.64%125.00%


Andrew Morton24.55%125.00%


Heiko Carstens24.55%125.00%


H. Peter Anvin12.27%125.00%


Total44100.00%4100.00%



#endif


struct compat_ipc64_perm {
	
compat_key_t key;
	
__compat_uid32_t uid;
	
__compat_gid32_t gid;
	
__compat_uid32_t cuid;
	
__compat_gid32_t cgid;
	
compat_mode_t mode;
	
unsigned short __pad1;
	
unsigned short seq;
	
unsigned short __pad2;
	
unsigned int __unused1;
	
unsigned int __unused2;
};


struct compat_semid64_ds {
	
struct compat_ipc64_perm sem_perm;
	
compat_time_t  sem_otime;
	
compat_ulong_t __pad1;
	
compat_time_t  sem_ctime;
	
compat_ulong_t __pad2;
	
compat_ulong_t sem_nsems;
	
compat_ulong_t __unused1;
	
compat_ulong_t __unused2;
};


struct compat_msqid64_ds {
	
struct compat_ipc64_perm msg_perm;
	
compat_time_t   msg_stime;
	
compat_ulong_t __pad1;
	
compat_time_t   msg_rtime;
	
compat_ulong_t __pad2;
	
compat_time_t   msg_ctime;
	
compat_ulong_t __pad3;
	
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 __unused1;
	
compat_ulong_t __unused2;
};


struct compat_shmid64_ds {
	
struct compat_ipc64_perm shm_perm;
	
compat_size_t  shm_segsz;
	
compat_time_t  shm_atime;
	
compat_ulong_t __pad1;
	
compat_time_t  shm_dtime;
	
compat_ulong_t __pad2;
	
compat_time_t  shm_ctime;
	
compat_ulong_t __pad3;
	
compat_pid_t   shm_cpid;
	
compat_pid_t   shm_lpid;
	
compat_ulong_t shm_nattch;
	
compat_ulong_t __unused1;
	
compat_ulong_t __unused2;
};
#endif /* _ASM_S390X_COMPAT_H */

Overall Contributors
PersonTokensPropCommitsCommitProp
Martin Schwidefsky37135.85%516.13%


Denys Vlasenko20419.71%13.23%


Andrew Morton18017.39%39.68%


Heiko Carstens13913.43%929.03%


Gerald Schaefer696.67%13.23%


Ingo Molnar252.42%26.45%


Al Viro161.55%26.45%


Stephen Rothwell100.97%13.23%


Arnd Bergmann80.77%13.23%


Christoph Hellwig40.39%13.23%


Randolph Chung40.39%13.23%


Eric W. Biedermann20.19%13.23%


H. Peter Anvin10.10%13.23%


Greg Kroah-Hartman10.10%13.23%


Marcin Ślusarz10.10%13.23%


Total1035100.00%31100.00%


Directory: arch/s390/include/asm



Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.
Created with cregit.