virtual_memory.c File Reference

#include <sys/types.h>
#include <sys/mman.h>
#include <errno.h>
#include "virtual_memory.h"

Include dependency graph for virtual_memory.c:

Macros
#define	_GNU_SOURCE   1 /* needed for MAP_ANONYMOUS on older platforms */
#define	MAP_ANONYMOUS   MAP_ANON
#define	PAGE_READONLY   PROT_READ
#define	PAGE_READWRITE   (PROT_READ | PROT_WRITE)
#define	PAGE_EXECUTE_READ   (PROT_READ | PROT_EXEC)
#define	PAGE_EXECUTE_READWRITE   (PROT_READ | PROT_WRITE | PROT_EXEC)
#define	Fail(func)   do {*errfunc = func; return errno;} while(0)
#define	RESERVED_FLAGS   0
#define	MEXTRA   0
#define	PEXTRA   0

Functions
void *	allocMemoryPages (size_t bytes)
static int	pageProtect (void *ptr, size_t bytes, int rules, char **errfunc)
void	setPagesRW (void *ptr, size_t bytes)
void	setPagesRX (void *ptr, size_t bytes)
void	setPagesRWX (void *ptr, size_t bytes)
void *	allocLargePagesMemory (size_t bytes)
void	freePagedMemory (void *ptr, size_t bytes)

Macro Definition Documentation

_GNU_SOURCE

#define _GNU_SOURCE   1 /* needed for MAP_ANONYMOUS on older platforms */

Fail

#define Fail

(

func

)

do {*errfunc = func; return errno;} while(0)

MAP_ANONYMOUS

#define MAP_ANONYMOUS   MAP_ANON

MEXTRA

#define MEXTRA   0

PAGE_EXECUTE_READ

#define PAGE_EXECUTE_READ   (PROT_READ | PROT_EXEC)

PAGE_EXECUTE_READWRITE

#define PAGE_EXECUTE_READWRITE   (PROT_READ | PROT_WRITE | PROT_EXEC)

PAGE_READONLY

#define PAGE_READONLY   PROT_READ

PAGE_READWRITE

#define PAGE_READWRITE   (PROT_READ | PROT_WRITE)

PEXTRA

#define PEXTRA   0

RESERVED_FLAGS

#define RESERVED_FLAGS   0

Function Documentation

allocLargePagesMemory()

void * allocLargePagesMemory

(

size_t

bytes

)

allocMemoryPages()

void * allocMemoryPages

(

size_t

bytes

)

freePagedMemory()

void freePagedMemory	(	void *	ptr,
		size_t	bytes )

pageProtect()

static int pageProtect ( void * ptr, size_t bytes, int rules, char ** errfunc )

inlinestatic

setPagesRW()

void setPagesRW	(	void *	ptr,
		size_t	bytes )

setPagesRWX()

void setPagesRWX	(	void *	ptr,
		size_t	bytes )

setPagesRX()

void setPagesRX	(	void *	ptr,
		size_t	bytes )