 |
|
|
Home :: International :: Manuals :: Howto :: FAQ :: Man Pages :: Email Login |
MODIFY_LDT
Section: Linux Programmer's Manual (2)Updated: 22 July 1995
Index Return to Main Contents
̾Á°
modify_ldt - ldt ¤òÀßÄê¤Þ¤¿¤Ï¼èÆÀ¤¹¤ë½ñ¼°
#include <linux/ldt.h> #include <linux/unistd.h> _syscall3( int, modify_ldt, int, func, void *, ptr, unsigned long, bytecount ) int modify_ldt(int func, void *ptr, unsigned long bytecount);
ÀâÌÀ
modify_ldt ¤Ï¥×¥í¥»¥¹¤Î¥í¡¼¥«¥ë¡¦¥Ç¥£¥¹¥¯¥ê¥×¥¿¡¼¡¦¥Æ¡¼¥Ö¥ë(local descriptor table)(ldt) ¤òÆɤ߽ñ¤¤¹¤ë¡£ ldt ¤Ï i386 ¥×¥í¥»¥Ã¥µ¡¼¤Ç»ÈÍѤµ¤ì¤ë¥×¥í¥»¥¹¤´¤È¤Î¥á¥â¥ê´ÉÍý¥Æ¡¼¥Ö¥ë¤Ç¤¢¤ë¡£ ¤³¤Î¥Æ¡¼¥Ö¥ë¤Ë´Ø¤·¤Æ¤Î¤è¤ê¾Ü¤·¤¤¾ðÊó¤Ï Intel 386 processor handbook ¤ò »²¾È¤¹¤ë¤³¤È¡£func ¤¬ 0 ¤Ê¤é¤Ð¡¢ modify_ldt ¤Ï ldt ¤ò ptr ¤¬»Ø¤·¤Æ¤¤¤ë¥á¥â¥ê¤ËÆɤ߹þ¤à¡£ Æɤ߹þ¤à¥Ð¥¤¥È¿ô¤Ï¼ÂºÝ¤Î ldt ¤Î¥µ¥¤¥º¤« bytecount ¤è¤ê¾®¤µ¤¤Êý¤Ç¤¢¤ë¡£
func ¤¬ 1 ¤Ê¤é¤Ð¡¢ modify_ldt ¤Ï ldt ¥¨¥ó¥È¥ê¤Î°ì¤Ä¤òÊѹ¹¤¹¤ë¡£ ptr ¤Ï modify_ldt_ldt_s ¹½Â¤ÂΤò»Ø¤·¡¢ bytecount ¤Ï¤³¤Î¹½Â¤ÂΤÎÂ礤µ¤ËÅù¤·¤¯¤Ê¤±¤ì¤Ð¤Ê¤é¤Ê¤¤¡£
ÊÖ¤êÃÍ
À®¸ù¤·¤¿¾ì¹ç¤Ï¡¢ modify_ldt ¤Ï(Æɤ߹þ¤ß¤Î¾ì¹ç¤Ï)¼ÂºÝ¤ËÆɤ߹þ¤ó¤À¥Ð¥¤¥È¿ô¡¢ ¤Þ¤¿¤Ï(½ñ¤¹þ¤ß¤Î¾ì¹ç¤Ï)¥¼¥í¤òÊÖ¤¹¡£ ¼ºÇÔ¤·¤¿¾ì¹ç¤Ï modify_ldt ¤Ï -1 ¤òÊÖ¤·¡¢ errno ¤òÀßÄꤹ¤ë¡£¥¨¥é¡¼
- ENOSYS
- func ¤¬ 0 ¤Ç¤â 1 ¤Ç¤â¤Ê¤¤¡£
- EINVAL
- ptr ¤¬ 0 ¤Ç¤¢¤ë¡¢ ¤Þ¤¿¤Ï func ¤¬ 1 ¤Ç bytecount ¤¬ modify_ldt_ldt_s ¹½Â¤ÂΤΥµ¥¤¥º¤ÈÅù¤·¤¯¤Ê¤¤¤«¡¢ func ¤¬ 1 ¤Ç¿·¤·¤¤ ldt ¥¨¥ó¥È¥ê¤¬ÉÔÀµ¤ÊÃͤǤ¢¤ë¡£
- EFAULT
- ptr ¤¬¥¢¥É¥ì¥¹¶õ´Ö¤Î³°¤ò»Ø¤·¤Æ¤¤¤ë¡£
½àµò
¤³¤Î¥³¡¼¥ë¤Ï Linux ÆÃͤǤ¢¤ê¡¢°Ü¿¢¤ò°Õ¿Þ¤·¤¿¥×¥í¥°¥é¥à¤Ç¤Ï »ÈÍѤ·¤Æ¤Ï¤¤¤±¤Ê¤¤¡£´ØÏ¢¹àÌÜ
vm86(2)