Next: , Previous: Arrays, Up: Data   [Contents][Index]


8.4 ½ÐÎÏ¥Õ¥©¡¼¥Þ¥Ã¥È

¥Ç¥Õ¥©¥ë¥È¤Ç¤Ï¡¢ GDB¤Ï¥Ç¡¼¥¿¤Î·¿¤Ë¤·¤¿¤¬¤Ã¤ÆÃͤòɽ¼¨¤·¤Þ¤¹¡£ ¤È¤­¤Ë¤Ï¡¢ ¤³¤ì¤¬Ë¾¤Þ¤·¤¯¤Ê¤¤¾ì¹ç¤â¤¢¤ê¤Þ¤¹¡£ Î㤨¤Ð¡¢ ¿ôÃͤò16¿Ê¤Çɽ¼¨¤·¤¿¤¤¾ì¹ç¤ä¥Ý¥¤¥ó¥¿¤ò10¿Ê¤Çɽ¼¨¤·¤¿¤¤¾ì¹ç¤¬¤¢¤ë¤Ç¤·¤ç¤¦¡£ ¤¢¤ë¤¤¤Ï¡¢ ¥á¥â¥êÆâ¤Î¤¢¤ëÆÃÄê¤Î¥¢¥É¥ì¥¹¤Î¥Ç¡¼¥¿¤òʸ»úÎó¤äÌ¿Îá¤È¤·¤ÆÉ½¼¨¤µ¤»¤¿¤¤¾ì¹ç¤â¤¢¤ë¤Ç¤·¤ç¤¦¡£ ¤³¤Î¤è¤¦¤Ê¤³¤È¤ò¤¹¤ë¤¿¤á¤Ë¤Ï¡¢ Ãͤòɽ¼¨¤¹¤ë¤È¤­¤Ë½ÐÎÏ¥Õ¥©¡¼¥Þ¥Ã¥È¤ò»ØÄꤷ¤Þ¤¹¡£

½ÐÎÏ¥Õ¥©¡¼¥Þ¥Ã¥È¤ÎºÇ¤âñ½ã¤Ê»ÈÍÑÊýË¡¤Ï¡¢ ´û¤Ëɾ²ÁºÑ¤ß¤ÎÃͤÎɽ¼¨ÊýË¡¤ò»ØÄꤹ¤ë¤³¤È¤Ç¤¹¡£ ¤³¤ì¤Ï¡¢ print¥³¥Þ¥ó¥É¤ÎºÇ½é¤Î°ú¿ô¤ò¥¹¥é¥Ã¥·¥å¤È¥Õ¥©¡¼¥Þ¥Ã¥Èʸ»ú¤Ç³«»Ï¤¹¤ë¤³¤È¤Ç¹Ô¤¤¤Þ¤¹¡£ ¥µ¥Ý¡¼¥È¤µ¤ì¤Æ¤¤¤ë¥Õ¥©¡¼¥Þ¥Ã¥Èʸ»ú¤Ï¡¢ °Ê²¼¤Î¤È¤ª¤ê¤Ç¤¹¡£

x

ÃͤòÀ°¿ôÃͤȤߤʤ·¡¢ 16¿Ê¤Çɽ¼¨¤·¤Þ¤¹¡£

d

ÃͤòÉ乿ÉÕ¤­10¿Ê¤ÎÀ°¿ôÃͤȤ·¤ÆÉ½¼¨¤·¤Þ¤¹¡£

u

ÃͤòÉ乿¤Ê¤·10¿Ê¤ÎÀ°¿ôÃͤȤ·¤ÆÉ½¼¨¤·¤Þ¤¹¡£

o

Ãͤò8¿Ê¤ÎÀ°¿ôÃͤȤ·¤ÆÉ½¼¨¤·¤Þ¤¹¡£

t

Ãͤò2¿Ê¤ÎÀ°¿ôÃͤȤ·¤ÆÉ½¼¨¤·¤Þ¤¹¡£ ‘t’¤Ïtwo¤ò¾Êά¤·¤¿¤â¤Î¤Ç¤¹¡£ 1

a

Ãͤò¡¢ 16¿Ê¤ÎÀäÂÐ¥¢¥É¥ì¥¹¡¢ ¤ª¤è¤Ó¡¢ ¤½¤Î¥¢¥É¥ì¥¹¤è¤êÁ°¤Ë¤¢¤ë¥·¥ó¥Ü¥ë¤Î¤¦¤ÁºÇ¤â¶á¤¤°ÌÃ֤ˤ¢¤ë¤â¤Î¤«¤é¤Î¥ª¥Õ¥»¥Ã¥È¡¦¥¢¥É¥ì¥¹¤È¤·¤ÆÉ½¼¨¤·¤Þ¤¹¡£ ¤³¤Î¥Õ¥©¡¼¥Þ¥Ã¥È¤ò»ÈÍѤ¹¤ë¤³¤È¤Ç¡¢ ̤ÃΤΥ¢¥É¥ì¥¹¤¬¤É¤³¤Ë ¡Ê¤É¤Î´Ø¿ô¤ÎÃæ¤Ë¡Ë ¤¢¤ë¤Î¤«¤òÃΤ뤳¤È¤¬¤Ç¤­¤Þ¤¹¡£

(gdb) p/a 0x54320
$3 = 0x54320 <_initialize_vx+396>
c

ÃͤòÀ°¿ôÃͤȤߤʤ·¡¢ ʸ»úÄê¿ô¤È¤·¤ÆÉ½¼¨¤·¤Þ¤¹¡£

f

ÃͤòÉâÆ°¾®¿ôÅÀ¿ôÃͤȤߤʤ·¡¢ ŵ·¿Åª¤ÊÉâÆ°¾®¿ôÅÀ¤Î¹½Ê¸¤Ç½ÐÎϤ·¤Þ¤¹¡£

Î㤨¤Ð¡¢ ¥×¥í¥°¥é¥à¡¦¥«¥¦¥ó¥¿¤ÎÃͤò16¿Ê¿ô¤Çɽ¼¨¤¹¤ë ¡Êsee Registers¡Ë ¤Ë¤Ï¡¢ °Ê²¼¤ò¼Â¹Ô¤·¤Æ¤¯¤À¤µ¤¤¡£

p/x $pc

¥¹¥é¥Ã¥·¥å¤ÎÁ°¤Ë¤Ï¥¹¥Ú¡¼¥¹¤¬É¬ÍפǤϤʤ¤¤³¤È¤ËÃí°Õ¤·¤Æ¤¯¤À¤µ¤¤¡£ ¤³¤ì¤Ï¡¢ GDB¤Î¥³¥Þ¥ó¥É̾¤Ë¤Ï¥¹¥é¥Ã¥·¥å¤ò´Þ¤á¤ë¤³¤È¤¬¤Ç¤­¤Ê¤¤¤«¤é¤Ç¤¹¡£

ÃÍ¥Ò¥¹¥È¥ê¤ÎºÇ¸å¤ÎÃͤò°Û¤Ê¤ë·Á¼°¤ÇºÆÉ½¼¨¤¹¤ë¤Ë¤Ï¡¢ print¥³¥Þ¥ó¥É¤ËÂФ·¤Æ¼°¤ò»ØÄꤻ¤º¤Ë¥Õ¥©¡¼¥Þ¥Ã¥È¤À¤±¤ò»ØÄꤷ¤Æ¼Â¹Ô¤·¤Þ¤¹¡£ Î㤨¤Ð¡¢ ‘p/x’¤ò¼Â¹Ô¤¹¤ë¤ÈºÇ¸å¤ÎÃͤò16¿Ê¤ÇºÆÉ½¼¨¤·¤Þ¤¹¡£


Footnotes

(1)

¸¶Ãí¡§¥Õ¥©¡¼¥Þ¥Ã¥Èʸ»ú‘b’¤Ï»ÈÍѤǤ­¤Þ¤»¤ó¡£ ¥Õ¥©¡¼¥Þ¥Ã¥Èʸ»ú¤Ïx¥³¥Þ¥ó¥É¤Ç¤â¶¦Ä̤·¤Æ»ÈÍѤµ¤ì¤Þ¤¹¤¬¡¢ x¥³¥Þ¥ó¥É¤Ç¤Ï¡¢ ‘b’¤Ïbyte¤Î¾Êά·Á¤È¤·¤Æ»ÈÍѤµ¤ì¤Æ¤¤¤ë¤¿¤á¤Ç¤¹¡£ See Examining memory¡£