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gdbã«é–¢ã™ã‚‹hitoriblogã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯ (9)

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1. qiraã¨ã¯ qiraã¨ã¯ä¸–ç•Œçš„ãªãƒãƒƒã‚«ãƒ¼ã€George Hotzæ° (ã‚¸ãƒ§ãƒ¼ã‚¸ãƒ»ãƒ›ãƒƒãƒ„ - Wikipedia) ã«ã‚ˆã£ã¦é–‹ç™ºã•ã‚ŒãŸé«˜æ©Ÿèƒ½ãƒã‚¤ãƒŠãƒªãƒˆãƒ¬ãƒ¼ã‚µãƒ¼ã§ã‚ã‚Šã€qiraã¨ã„ã†åã¯ï¼ˆQEMU Interactive Runtime Analyserï¼‰ã®ç•¥ã§ã‚ã‚‹ã€‚ GitHub - BinaryAnalysisPlatform/qira: QEMU Interactive Runtime Analyser ç•¥èªžã‚’è¦‹ã‚Œã°åˆ†ã‹ã‚‹ãŒuser mode QEMUã‚’ä½¿ç”¨ã—ãŸãƒã‚¤ãƒŠãƒªè§£æžãƒ„ãƒ¼ãƒ«ã§ã‚ã‚Šã€ELFãªã©ã®å®Ÿè¡Œå½¢å¼ãƒã‚¤ãƒŠãƒªã‚’å®Ÿéš›ã«å‹•ä½œã•ã›ã¦å„å‘½ä»¤ã®ãƒ¬ã‚¸ã‚¹ã‚¿ã€ãƒ¡ãƒ¢ãƒªã¸ã®æ“ä½œã‚’é€æ¬¡è¨˜éŒ²ã™ã‚‹ã€‚ ã“ã‚Œã‚‰ã®è¨˜éŒ²ã¯web UIã‚’é€šã—ã¦å¥½ããªå‘½ä»¤ä½ç½®ã«ã‚«ãƒ¼ã‚½ãƒ«ã‚’ç§»å‹•ã•ã›ã‚‹ã ã‘ã§è¦‹ã‚‹ã“ã¨ãŒã§ãã€ãã®æ™‚ã®ãƒ¬ã‚¸ã‚¹ã‚¿ã€ãƒ¡ãƒ¢ãƒªã®è¨˜éŒ²ãŒå†ç¾ã•ã‚Œã‚‹ä»•çµ„ã¿ã«ãªã£ã¦ã„ã‚‹ã€‚ã‚½ãƒ•ãƒˆã‚¦ã‚§ã‚¢ã®ãƒ‡ãƒãƒƒã‚°ã‚„CTFã«ãŠã‘ã‚‹ãƒã‚¤ãƒŠãƒªè§£
hitoriblog 2016/09/28
debugging

debug

gdb

QEMU
ãƒªãƒ³ã‚¯
gcc+gdbã«ã‚ˆã‚‹ãƒ—ãƒã‚°ãƒ©ãƒ ã®ãƒ‡ãƒãƒƒã‚° ç¬¬1å›ž ã‚¹ãƒ†ãƒƒãƒ—å®Ÿè¡Œã€å¤‰æ•°ã®æ“ä½œã€ãƒ–ãƒ¬ãƒ¼ã‚¯ãƒã‚¤ãƒ³ãƒˆ
ã—ã‹ã—ã€ãƒ–ãƒ¬ãƒ¼ã‚¯ãƒã‚¤ãƒ³ãƒˆã¨ã„ã†æ©Ÿèƒ½ã¯ãƒ‡ãƒãƒƒã‚¬ã®æ‰‹åŠ©ã‘ãªã—ã§ã¯å®Ÿç¾ã§ãã¾ã›ã‚“ã€‚ ãƒ–ãƒ¬ãƒ¼ã‚¯ãƒã‚¤ãƒ³ãƒˆã¨ã¯ãƒ—ãƒã‚°ãƒ©ãƒ ã®å¼·åˆ¶ä¸€æ™‚åœæ¢ã‚’è¡Œã†ãƒã‚¤ãƒ³ãƒˆã§ã€å®Ÿè¡Œä¸ã®ãƒ—ãƒã‚°ãƒ©ãƒ ãŒãƒ–ãƒ¬ãƒ¼ã‚¯ãƒã‚¤ãƒ³ãƒˆã«éé‡ã™ã‚‹ã¨ãƒ—ãƒã‚°ãƒ©ãƒ ã¯ä¸€æ™‚åœæ¢ã•ã‚Œã€ãƒ‡ãƒãƒƒã‚¬ã«ã‚ˆã‚‹ãƒ—ãƒã‚°ãƒ©ãƒ ã¸ã®ä»‹å…¥ã‚’è¡Œãˆã‚‹ã‚ˆã†ã«ãªã‚Šã¾ã™ã€‚ ãƒ–ãƒ¬ãƒ¼ã‚¯ãƒã‚¤ãƒ³ãƒˆã¯æ¬¡ã®ã‚ˆã†ãªå ´æ‰€ã«è¨å®šã§ãã¾ã™ã€‚ æŒ‡å®šã—ãŸè¡Œç•ªå·ã®ãƒ—ãƒã‚°ãƒ©ãƒ ã‚’å®Ÿè¡Œã—ã‚ˆã†ã¨ã™ã‚‹çž¬é–“ é–¢æ•°ã‚’å‘¼ã³å‡ºã—ãŸçž¬é–“ ãã®ä»–ã€C++ãªã©ã§ã¯ã€Œä¾‹å¤–ãŒç™ºç”Ÿã—ãŸçž¬é–“ã€ãªã©ã«ã‚‚ãƒ–ãƒ¬ãƒ¼ã‚¯ãƒã‚¤ãƒ³ãƒˆã‚’è¨å®šã™ã‚‹ã“ã¨ãŒã§ãã¾ã™ã€‚ è¡Œç•ªå·ãƒ–ãƒ¬ãƒ¼ã‚¯ ãƒ–ãƒ¬ãƒ¼ã‚¯ãƒã‚¤ãƒ³ãƒˆã¨ã—ã¦ã‚ˆãä½¿ç”¨ã•ã‚Œã‚‹ã®ã¯ã€ã€Œãƒ—ãƒã‚°ãƒ©ãƒ ã®ç‰¹å®šã®ä½ç½®ã€ã§ã™ã€‚ ä¾‹ã¨ã—ã¦ã€bubblesort.cãƒ—ãƒã‚°ãƒ©ãƒ ã®sorté–¢æ•°å†…ã§ã€éš£ã‚Šåˆã†äºŒã¤ã®è¦ç´ ã‚’æ¯”è¼ƒã—ã¦ã„ã‚‹ç®‡æ‰€ã«ãƒ–ãƒ¬ãƒ¼ã‚¯ãƒã‚¤ãƒ³ãƒˆã‚’è¨å®šã—ã¦ã¿ã¾ã™ã€‚ 25|/* bubble sort */ 26|void sort(int *a
hitoriblog 2013/04/10
gdb
ãƒªãƒ³ã‚¯
Cï¼C++è¨€èªžè¬›åº§/ç¬¬5å›žï¼šGDBã§ãƒ‡ãƒãƒƒã‚° - ä¸‰æµ¦å…‹ä»‹ - æƒ…å ±ç§‘å¦ç ”ç©¶ç§‘ - å¤§é˜ªå¤§å¦
GDBã¨ã¯ï¼Ÿ â™ª GNU ãŒé–‹ç™ºãƒ»é…å¸ƒã—ã¦ã„ã‚‹ã€ãƒ•ãƒªãƒ¼ã®ã‚½ãƒ¼ã‚¹ãƒ¬ãƒ™ãƒ«ãƒ‡ãƒãƒƒã‚¬ã§ã™ã€‚ãƒ—ãƒã‚°ãƒ©ãƒ ã®ã‚½ãƒ¼ã‚¹ã‚³ãƒ¼ãƒ‰ã‚’è¦‹ãªãŒã‚‰ã€å®Ÿè¡Œã‚’é€”ä¸ã§æ¢ã‚ãŸã‚Šã€å¤‰æ•°ã®å€¤ã‚’è¦‹ãŸã‚Šã€1è¡Œã¥ã¤å®Ÿè¡Œã—ãŸã‚Šã€ã¨ã„ã£ãŸã“ã¨ãŒã§ãã¾ã™ã€‚ â–³ GDBã‚’ä½¿ã†éš›ã®æ³¨æ„ â™ª éŽä¿¡ã—ãªã„ã“ã¨ã€‚æ™‚ã¨ã—ã¦ã€æ™®é€šã«å®Ÿè¡Œã™ã‚‹ã¨ã‚¨ãƒ©ãƒ¼ãŒå‡ºã‚‹ãŒã€GDB ä¸Šã§å®Ÿè¡Œã™ã‚‹ã¨ã¡ã‚ƒã‚“ã¨å®Ÿè¡Œã•ã‚Œã‚‹ãªã©ã€é€šå¸¸å®Ÿè¡Œæ™‚ã¨GDBä¸Šã§ã®å®Ÿè¡Œæ™‚ã®æŒ™å‹•ãŒé•ã†å ´åˆãŒã‚ã‚Šã¾ã™ã€‚ãƒ‡ãƒãƒƒã‚¬ã‚„çµ±åˆé–‹ç™ºç’°å¢ƒã«æ…£ã‚Œã¦ã—ã¾ã†ã¨ã€ãã‚Œä»¥å¤–ã®ç’°å¢ƒã§ã¯ãƒ‡ãƒãƒƒã‚°ã§ããªã„ä½“ã«ãªã£ã¦ã—ã¾ã„ã¾ã™ã€‚ã‚³ãƒ¼ãƒ‰ä¸ã«ãƒ‡ãƒãƒƒã‚°ç”¨ãƒ«ãƒ¼ãƒãƒ³ã‚’åŸ‹ã‚è¾¼ã‚“ã§ãƒ‡ãƒãƒƒã‚°ã™ã‚‹ã€åŸºæœ¬çš„ãªæ‰‹æ³•ã‚’å¿˜ã‚Œã¦ã¯ã„ã‘ã¾ã›ã‚“ã€‚ â–³ GDBã‚’ä½¿ã†ãŸã‚ã®æº–å‚™ â™ª ã‚³ãƒ³ãƒ‘ã‚¤ãƒ«ã‚’è¡Œã†éš›ã€-g ã‚ªãƒ—ã‚·ãƒ§ãƒ³ã‚’ä»˜ã‘ã¦ã‚³ãƒ³ãƒ‘ã‚¤ãƒ«ã™ã‚‹ã€‚ ã‚³ãƒ¼ãƒ‰æœ€é©åŒ–ã‚ªãƒ—ã‚·ãƒ§ãƒ³ã® -O ã‚„ -O2 ã¯ä»˜ã‘ãªã„æ–¹ãŒè‰¯ã„(Oã¯å¤§æ–‡å—ã®ã‚ªãƒ¼)ã€‚ä»¥å‰ã® gcc & gdb ã§ã¯ã€æœ€é©åŒ–
hitoriblog 2013/04/10
gdb
ãƒªãƒ³ã‚¯
BOOT_COMPLETEDãŒå—ä¿¡å‡ºæ¥ãªã„ - Google ã‚°ãƒ«ãƒ¼ãƒ—
hitoriblog 2013/03/06
Mountain Lionã§å‹•ãF-Scriptã®ãƒã‚¤ãƒŠãƒª

Objective-C

gdb
ãƒªãƒ³ã‚¯
http://www.pod2g.org/2012/02/working-gnu-debugger-on-ios-43.html
hitoriblog 2013/03/01
Objective-C

iphone

iOS

debug

gdb
ãƒªãƒ³ã‚¯
iOSã®ãƒ—ãƒã‚°ãƒ©ãƒŸãƒ³ã‚°ä¸ã« gdb ã§ recursiveDescription ã‚’ä½¿ã†ã®ã¯è‰¯ã„ã‚¢ã‚¤ãƒ‡ã‚£ã‚¢!! - å¼·ç«ã§é€²ã‚
ã“ã¡ã‚‰ã®è¨˜äº‹ã§æ›¸ã‹ã‚Œã¦ã„ãŸå†…å®¹ã€‚ Debugging with GDB: Print-Object and UIView recursiveDescription http://iphonedevelopertips.com/debugging/debugging-with-gdb-print-object-and-uiview-recursivedescription.html ãƒ–ãƒ¬ãƒ¼ã‚¯ãƒã‚¤ãƒ³ãƒˆã§æ¢ã‚ã¦ã€ã‚³ãƒ³ã‚½ãƒ¼ãƒ«(gdb)ã§ po [[self view] recursiveDescription]ã¨ã™ã‚Œã° [self view] ã®ãƒ“ãƒ¥ãƒ¼æ§‹é€ ãŒç¢ºèªå‡ºæ¥ã¾ã™ã€‚ è‡ªåˆ†ã¯ä»Šã¾ã§ãƒ—ãƒã‚°ãƒ©ãƒ ã®ä¸ã«æ›¸ã„ã¦ã„ãŸã®ã§ã™ãŒã“ã¡ã‚‰ã®æ–¹ãŒç°¡å˜ã§è‰¯ã„ã§ã™ãã€‚ã†ã£ã‹ã‚Šã€ãƒ—ãƒã‚°ãƒ©ãƒ ã®ä¸ã«æ®‹ã—ãŸã¾ã¾ã«ã™ã‚‹æ§˜ãªäº‹ã‚‚ç™ºç”Ÿã—ã¾ã›ã‚“ã—â€¦ åŒã˜æ§˜ãªå†…å®¹ã‚’æ—¥æœ¬èªžã§æ›¸ã‹ã‚Œã¦ã‚‹ãƒ–ãƒã‚°ã‚‚è¦‹ã¤ã‘ã¾ã—ãŸã€‚ã“ã¡ã‚‰ã®æ–¹ãŒæ›¸ã‹ã‚ŒãŸæ™‚æœŸã¯æ—©ã„
hitoriblog 2012/02/06
Objective-C

iOS

development

gdb
ãƒªãƒ³ã‚¯
í•œêµ ì•„ì´í°
ìµœì‹ ì•„ì´í° íœ´ëŒ€í° ì†Œì‹ì„ ì œê³µí•©ë‹ˆë‹¤.
hitoriblog 2012/01/31
Objective-C

gdb
ãƒªãƒ³ã‚¯
http://twitter.com/sumihiro/status/14986796525953024
hitoriblog 2010/12/15
Objective-C

gdb
ãƒªãƒ³ã‚¯
Cãƒ—ãƒã‚°ãƒ©ãƒ ã‚’ãƒ‡ãƒãƒƒã‚°ã™ã‚‹åŸºæœ¬çš„ãªæ–¹æ³• | ã‚¨ãƒ³ã‚¿ãƒ¼ãƒ—ãƒ©ã‚¤ã‚º | ãƒžã‚¤ã‚³ãƒŸã‚¸ãƒ£ãƒ¼ãƒŠãƒ«
The Geek Stuff How to Debug C Program using gdb in 5 Simple Steps - The Geek Stuffã«ãŠã„ã¦gdbã‚’ä½¿ã£ãŸCãƒ—ãƒã‚°ãƒ©ãƒ ã®åŸºæœ¬çš„ãªãƒ‡ãƒãƒƒã‚°æ–¹æ³•ãŒç´¹ä»‹ã•ã‚Œã¦ã„ã‚‹ã€‚ã‚ã‚‰ã‹ã˜ã‚å•é¡Œã‚’ä»•è¾¼ã‚“ã§ã‚ã‚‹çŸã„Cã®ã‚½ãƒ¼ã‚¹ã‚³ãƒ¼ãƒ‰ã¨ã€ãã‚Œã‚’ãƒ‡ãƒãƒƒã‚°ã‚ªãƒ—ã‚·ãƒ§ãƒ³ä»˜ãã§ãƒ“ãƒ«ãƒ‰ã—ã¦ã€å®Ÿéš›ã«ã©ã®ã‚ˆã†ã«ãƒ‡ãƒãƒƒã‚°ã‚’å®Ÿæ–½ã™ã‚Œã°ã„ã„ã‹ãŒç°¡æ½”ã«ã¾ã¨ã¾ã£ã¦ã„ã¦å‚è€ƒã«ãªã‚‹ã€‚åŒè¨˜äº‹ã§ã¯æ¬¡ã®ã‚ˆã†ãªCã§è¨˜è¿°ã—ãŸã‚½ãƒ¼ã‚¹ã‚³ãƒ¼ãƒ‰ã‚’ç”¨æ„ã€‚ éšŽä¹—è¨ˆç®—ãƒ—ãƒã‚°ãƒ©ãƒ ã‚’ãƒ‡ãƒãƒƒã‚°ã™ã‚‹ä¾‹ ã“ã®ã‚½ãƒ¼ã‚¹ã‚³ãƒ¼ãƒ‰ã¯éšŽä¹—ã‚’è¨ˆç®—ã™ã‚‹ã¨ã„ã†å†…å®¹ã€‚ã€Œfor (i = 1; i < num; i++) j = j * iã€ã®éƒ¨åˆ†ãŒéšŽä¹—è¨ˆç®—éƒ¨åˆ†ã ãŒã€å¤‰æ•°jãŒåˆæœŸåŒ–ã•ã‚Œã¦ã„ãªã„ãŸã‚éšŽä¹—ã®è¨ˆç®—ã«ãªã£ã¦ã„ãªã„ã€‚jã«ã©ã†ã„ã£ãŸæ•°å€¤ãŒå…¥ã£ã¦ã„ã‚‹ã‹ã¯å®Ÿè¡Œã™ã‚‹ç’°å¢ƒã«ã‚ˆã£ã¦å·¦å³ã•ã‚Œã‚‹ã€‚How to Debug C Pro
hitoriblog 2010/03/18
gdb

c

debug
ãƒªãƒ³ã‚¯
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