×ðÁú¿­Ê±

gdbµ÷ÊÔÉó²é±äÁ¿ÖµµÄÏÂÁî

gdb ÖÐÉó²é±äÁ¿ÖµµÄÏÂÁîÓУºprint £ºÖ±½Ó´òÓ¡±äÁ¿Öµ¡£p £º´òÓ¡±í´ïʽÖбäÁ¿µÄÖµ¡£display £ÔÃĿε÷ÊÔÆ÷×èֹʱ´òÓ¡±äÁ¿µÄÖµ¡£watch £º±äÁ¿Öµ×ª±äʱÌìÉú֪ͨ¡£

gdbÉó²é±äÁ¿ÖµµÄÏÂÁî

ÔÚGDBµ÷ÊÔÆ÷ÖУ¬Óм¸¸öÏÂÁî¿ÉÒÔÓÃÀ´Éó²é±äÁ¿µÄÖµ£º

  • print £ºÖ±½Ó´òÓ¡±äÁ¿µÄÖµ¡£
  • p £º´òÓ¡±í´ïʽÖбäÁ¿µÄÖµ¡£
  • display £ºÔÚÿ´Îµ÷ÊÔÆ÷×èֹʱ´òÓ¡±äÁ¿µÄÖµ¡£
  • watch £ºÔÚ±äÁ¿µÄÖµ±¬·¢×ª±äʱÌìÉú֪ͨ¡£

ʾÀý

¼ÙÉèÎÒÃÇÓÐÒ»¸öÃûΪ my_array µÄÕûÊýÊý×飺

int my_array[] = {1, 2, 3, 4, 5};

µÇ¼ºó¸´ÖÆ

ʹÓà print ÏÂÁî

ÎÒÃÇ¿ÉÒÔʹÓà print ÏÂÁîÖ±½Ó´òÓ¡Êý×éÔªËصÄÖµ£º

(gdb) print my_array[0]
$1 = 1

µÇ¼ºó¸´ÖÆ

ʹÓà p ÏÂÁî

ÎÒÃÇ»¹¿ÉÒÔʹÓà p ÏÂÁî´òÓ¡Êý×éÖÐËùÓÐÔªËصÄÖµ£º

(gdb) p my_array
$2 = {1, 2, 3, 4, 5}

µÇ¼ºó¸´ÖÆ

ʹÓà display ÏÂÁî

ÎÒÃÇ¿ÉÒÔʹÓà display ÏÂÁîÔÚÿ´Îµ÷ÊÔÆ÷×èֹʱ´òÓ¡Êý×éÔªËصÄÖµ£º

(gdb) display my_array[0]
Display of variable my_array[0] = 1

µÇ¼ºó¸´ÖÆ

ʹÓà watch ÏÂÁî

ÎÒÃÇ¿ÉÒÔʹÓà watch ÏÂÁîÔÚ±äÁ¿ my_array[0] µÄÖµ±¬·¢×ª±äʱÌìÉú֪ͨ£º

(gdb) watch my_array[0]
Hardware watchpoint 1: my_array[0]
Watchpoint 1: my_array[0]
Old value = 1
New value = 2

µÇ¼ºó¸´ÖÆ

ÒÔÉϾÍÊÇgdbµ÷ÊÔÉó²é±äÁ¿ÖµµÄÏÂÁîµÄÏêϸÄÚÈÝ£¬¸ü¶àÇë¹Ø×¢±¾ÍøÄÚÆäËüÏà¹ØÎÄÕ£¡

ÃâÔð˵Ã÷£ºÒÔÉÏչʾÄÚÈÝȪԴÓÚÏàÖúýÌå¡¢ÆóÒµ»ú¹¹¡¢ÍøÓÑÌṩ»òÍøÂçÍøÂçÕûÀí£¬°æȨÕùÒéÓë±¾Õ¾Î޹أ¬ÎÄÕÂÉæ¼°¿´·¨Óë¿´·¨²»´ú±í×ðÁú¿­Ê±ÂËÓÍ»úÍø¹Ù·½Ì¬¶È£¬Çë¶ÁÕß½ö×ö²Î¿¼¡£±¾ÎĽӴýתÔØ£¬×ªÔØÇë˵Ã÷À´ÓÉ¡£ÈôÄúÒÔΪ±¾ÎÄÇÖÕ¼ÁËÄúµÄ°æȨÐÅÏ¢£¬»òÄú·¢Ã÷¸ÃÄÚÈÝÓÐÈκÎÉæ¼°ÓÐÎ¥¹«µÂ¡¢Ã°·¸Ö´·¨µÈÎ¥·¨ÐÅÏ¢£¬ÇëÄúÁ¬Ã¦ÁªÏµ×ðÁú¿­Ê±ÊµÊ±ÐÞÕý»òɾ³ý¡£

Ïà¹ØÐÂÎÅ

ÁªÏµ×ðÁú¿­Ê±

18523999891

¿É΢ÐÅÔÚÏß×Éѯ

ÊÂÇéʱ¼ä£ºÖÜÒ»ÖÁÖÜÎ壬9:30-18:30£¬½ÚãåÈÕÐÝÏ¢

QR code
¡¾ÍøÕ¾µØͼ¡¿¡¾sitemap¡¿