segment.h File Reference

Go to the source code of this file.

Defines
#define	get_fs_byte(addr)   get_user_byte((char *)(addr))
#define	get_fs_word(addr)   get_user_word((short *)(addr))
#define	get_fs_long(addr)   get_user_long((int *)(addr))
#define	put_fs_byte(x, addr)   put_user_byte((x),(char *)(addr))
#define	put_fs_word(x, addr)   put_user_word((x),(short *)(addr))
#define	put_fs_long(x, addr)   put_user_long((x),(int *)(addr))
#define	COMMON(x)
#define	COMMON(x)
#define	memcpy_fromfs(to, from, n)
#define	memcpy_tofs(to, from, n)
Functions
static unsigned char	get_user_byte (const char *addr)
static unsigned short	get_user_word (const short *addr)
static unsigned long	get_user_long (const int *addr)
static void	put_user_byte (char val, char *addr)
static void	put_user_word (short val, short *addr)
static void	put_user_long (unsigned long val, int *addr)
static void	__generic_memcpy_tofs (void *to, const void *from, unsigned long n)
static void	__constant_memcpy_tofs (void *to, const void *from, unsigned long n)
static void	__generic_memcpy_fromfs (void *to, const void *from, unsigned long n)
static void	__constant_memcpy_fromfs (void *to, const void *from, unsigned long n)
static unsigned long	get_fs (void)
static unsigned long	get_ds (void)
static void	set_fs (unsigned long val)

---

Define Documentation

#define COMMON

(

x

)

Value:

__asm__("cld\n\t" \
        "rep ; fs ; movsl\n\t" \
        x \

#define COMMON

(

x

)

Value:

__asm__("cld\n\t" \
        "push %%es\n\t" \
        "push %%fs\n\t" \
        "pop %%es\n\t" \
        "rep ; movsl\n\t" \
        x \
        "pop %%es" \

Referenced by __constant_memcpy_fromfs(), and __constant_memcpy_tofs().

#define get_fs_byte

(

addr

)

get_user_byte((char *)(addr))

Definition at line 12 of file segment.h.

#define get_fs_long

(

addr

)

get_user_long((int *)(addr))

Definition at line 32 of file segment.h.

#define get_fs_word

(

addr

)

get_user_word((short *)(addr))

Definition at line 22 of file segment.h.

#define memcpy_fromfs	(	to,
		from,
		n		)

Value:

(__builtin_constant_p(n) ? \
 __constant_memcpy_fromfs((to),(from),(n)) : \
 __generic_memcpy_fromfs((to),(from),(n)))

Definition at line 193 of file segment.h.

#define memcpy_tofs	(	to,
		from,
		n		)

Value:

(__builtin_constant_p(n) ? \
 __constant_memcpy_tofs((to),(from),(n)) : \
 __generic_memcpy_tofs((to),(from),(n)))

Definition at line 198 of file segment.h.

#define put_fs_byte	(	x,
		addr		)	put_user_byte((x),(char *)(addr))

Definition at line 41 of file segment.h.

#define put_fs_long	(	x,
		addr		)	put_user_long((x),(int *)(addr))

Definition at line 59 of file segment.h.

#define put_fs_word	(	x,
		addr		)	put_user_word((x),(short *)(addr))

Definition at line 50 of file segment.h.

---

Function Documentation

static void __constant_memcpy_fromfs	(	void *	to,
		const void *	from,
		unsigned long	n
	)			[inline, static]

Definition at line 147 of file segment.h.

References COMMON, get_user_byte(), get_user_long(), and get_user_word().

static void __constant_memcpy_tofs	(	void *	to,
		const void *	from,
		unsigned long	n
	)			[inline, static]

Definition at line 81 of file segment.h.

References COMMON, put_user_byte(), put_user_long(), and put_user_word().

static void __generic_memcpy_fromfs	(	void *	to,
		const void *	from,
		unsigned long	n
	)			[inline, static]

< no outputs

Definition at line 131 of file segment.h.

static void __generic_memcpy_tofs	(	void *	to,
		const void *	from,
		unsigned long	n
	)			[inline, static]

< no outputs

Definition at line 61 of file segment.h.

static unsigned long get_ds

(

void

)

[inline, static]

Definition at line 221 of file segment.h.

static unsigned long get_fs

(

void

)

[inline, static]

Someone who knows GNU asm better than I should double check the followig. It seems to work, but I don't know if I'm doing something subtly wrong. --- TYT, 11/24/91 [ nothing wrong here, Linus: I just changed the ax to be any reg ]

Definition at line 214 of file segment.h.

static unsigned char get_user_byte

(

const char *

addr

)

[inline, static]

Definition at line 4 of file segment.h.

Referenced by __constant_memcpy_fromfs().

static unsigned long get_user_long

(

const int *

addr

)

[inline, static]

Definition at line 24 of file segment.h.

Referenced by __constant_memcpy_fromfs().

static unsigned short get_user_word

(

const short *

addr

)

[inline, static]

Definition at line 14 of file segment.h.

Referenced by __constant_memcpy_fromfs().

static void put_user_byte	(	char	val,
		char *	addr
	)			[inline, static]

Definition at line 34 of file segment.h.

Referenced by __constant_memcpy_tofs().

static void put_user_long	(	unsigned long	val,
		int *	addr
	)			[inline, static]

Definition at line 52 of file segment.h.

Referenced by __constant_memcpy_tofs().

static void put_user_word	(	short	val,
		short *	addr
	)			[inline, static]

Definition at line 43 of file segment.h.

Referenced by __constant_memcpy_tofs().

static void set_fs

(

unsigned long

val

)

[inline, static]

Definition at line 228 of file segment.h.

---