gdb 㧠void* åž‹ã®å¤‰æ•°ã‚’デãƒãƒƒã‚°ã™ã‚‹
C言語ã§å®Ÿè£…ã•ã‚ŒãŸãƒ©ã‚¤ãƒ–ラリやアプリケーションã§ã¯ã€æ±Žç”¨çš„ãªåž‹ã¨ã—ã¦éšæ‰€ã§ void* ãŒä½¿ç”¨ã•ã‚Œã¾ã™ãŒã€ã“れをgdbã‹ã‚‰ãƒ‡ãƒãƒƒã‚°ã™ã‚‹ã¨ã€ãã®ã¾ã¾ã§ã¯åž‹æƒ…å ±ãŒç„¡ã„ãŸã‚タダã®ãƒã‚¤ãƒ³ã‚¿ã¨ã—ã¦æ‰±ã‚ã‚Œã¦ã—ã¾ã„ã¾ã™ã€‚ã“ã‚Œã§ã¯ãƒ‡ãƒãƒƒã‚°æ™‚ã®éƒ½åˆãŒã‚ˆã‚ã—ããªã„ã§ã™ã€‚ (gdb) print 0xfee65c0 $1 = 267281856 (gdb) print (void *)0xfee65c0 $2 = (void *) 0xfee65c0 ã“ã‚“ãªã¨ãã€ã“ã® void* ãŒæŒ‡ã—示ã—ã¦ã„ã‚‹å…ˆã®åž‹ãŒã‚ã‹ã‚Šãã£ã¦ã„ã‚‹å ´åˆã¯ã€ãã®åž‹ã§ã‚ャストã—ã¦ã‚„ã£ã¦: (gdb) print (struct imap_session_state_data *)0xfee65c0 $4 = (struct imap_session_state_data *) 0xfee65c0 (gdb) print $4 $5 = (st
『EXC_BAD_ACCESSã®ã¨ãã«ã™ã‚‹NSZombieEnabledよりã•ã‚‰ã«ä¾¿åˆ©ãªå¯¾å‡¦æ³•ã€
今日ã¯ä¸€æ—¥ä¸EXC_BAD_ACCESSã¨æˆ¦ã£ã¦ã„ã¾ã—ãŸãƒ»ãƒ»ãƒ»ãƒ» ã©ã“ã‹ãƒ¡ãƒ¢ãƒªé–¢ä¿‚ã§ã ã‚ãªã¨ã“ã‚ãŒã‚ã‚‹ã‚“ã ãªã¨ã„ã†ã“ã¨ã—ã‹ã‚ã‹ã‚‰ãšã€ ã‹ãªã‚Šæ™‚間を食ã£ã¦ã—ã¾ã—㟠開発をã—ã¦ã„る人ãªã‚‰èª°ã‚‚ãŒé€šã‚‹é“ã§ã¯ãªã„ã§ã—ょã†ã‹ï¼Ÿ 検索ã¨ã‹ã™ã‚‹ã¨ã€ã‚ˆã出ã¦ãã‚‹ã®ã¯ã€€NSZombieEnabled　をYESã«ã—ã¦ã©ã‚“ãªç¾è±¡ãŒèµ·ãã¦ã„ã‚‹ã®ã‹ ã‚’ã—ã‚Šã€ãã“ã‹ã‚‰æŽ¨æ¸¬ã—ã¦ãŒã‚“ã°ã‚‹ã£ã¦ã„ã†ã‚‚ã®ãŒã‚ˆã引ã£ã‹ã‹ã‚Šã¾ã™ã€‚ ã—ã‹ã—ï¼ï¼ ãã‚Œã§ã‚‚具体的ã«ã©ã“ãŒæ‚ªã„よï¼ã£ã¦è¨€ã£ã¦ãれる訳ã§ã¯ãªã„ã®ã§ã€ ãªã‹ãªã‹ãƒã‚°ã‚’見ã¤ã‘ã‚‹ã®ã¯é›£ã—ã„ã¨ã‚個ãŒã‚ã‚Šã¾ã™ã‚ˆã ãã‚“ãªã‹ã‚†ã„ã¨ã“ã‚ã«æ‰‹ãŒå±Šã„ã¦ãれるやã¤ãŒã„ã¾ã—ãŸï¼ NSZombieEnabled ã«åŠ ãˆã¦ã“れを使ã†ã“ã¨ã§ã€ã‚‚ã†ä»Šã¾ã§ã®è‹¦åŠ´ã¯ä½•ã ã£ãŸã‚“ã ã‚ã†ï¼Ÿã£ã¦è¨€ã†ãらã„ç°¡å˜ã«è¦‹ã¤ã‘られã¡ã‚ƒã„ã¾ã™ï¼ ã¤ã‹ã„ã‹ãŸã¯ã¡ã‚‡ã£ã¨ã‚ã‚“ã©ãã•ã„ã‘ã©ã€ãã‚Œã ã‘ã®ä¾¡å€¤ã¯ã‚ã‚Šã¾ã™ï¼ 使ã„æ–¹ã§ã™ãŒã€ã‚らã‹
gdbコマンド メモ - Watsonã®ãƒ¡ãƒ¢
自分用ã«gdbコマンドをメモ。別ã®ã‚µã‚¤ãƒˆã«è¼‰ã›ã¦ã„ãŸã®ã§ã™ãŒã€ã‚µã‚¤ãƒˆãŒæ¶ˆãˆãŸã®ã§ã“ã¡ã‚‰ã«è¼‰ã›ç›´ã—ã¾ã—ãŸ(^^; list ソースコードを表示。 sample.cã®10行目ã‚ãŸã‚Šã‚’表示ã™ã‚‹å ´åˆã€ä»¥ä¸‹ã®ã‚³ãƒžãƒ³ãƒ‰ã‚’実行ã—ã¾ã™ã€‚ (gdb) list sample.c:10 5 #define LED3 0x40 6 7 void wait() 8 { 9 static int status; 10 static unsigned int t; 11 12 do{ 13 status = *DGA_CSR20 & TT0_BIT; 14 t = (*DGA_CSR13 & 0x00ffffff); print (p) 変数ã®å€¤ã‚’表示。 statusã¨ã„ã†å¤‰æ•°ã®å€¤ã‚’表示ã™ã‚‹å ´åˆã€ä»¥ä¸‹ã®ã‚³ãƒžãƒ³ãƒ‰ã‚’実行ã—ã¾ã™ã€‚ (gdb) p status $1 = 104857 (gdb) p/x status $2
Whatever » Blog Archive » iPhone Crash Logs
Sometimes programs crash. This annoys users and developers alike. Users are frustrated because they cannot use crashing software, developers are frustrated because they have to hunt bugs instead of doing something creative and rewarding. How do we communicate if an iPhone application crashes? I’ll start with a disclaimer. I’m not sure whether the information provided in this post is covered by iPh
iPhoneã§Crash Logã‹ã‚‰é–¢æ•°ã®ä½ç½®ã‚’特定ã™ã‚‹ — sklave
iPhoneã®ç´ æ™´ã—ã„ã¨ã“ã‚ã®ä¸€ã¤ã¯ã€Crash LogãŒæœ¬ä½“ã«ä¿å˜ã•ã‚Œã‚‹äº‹ãªã‚“ã§ã™ãŒã€ Thread 0 Crashed: 0 libobjc.A.dylib 0x300c8c18 objc_msgSend + 20 1 Fastweet2k 0x00016240 0x1000 + 86592 2 UIKit 0x30b2b414 -[UITextView keyboardInputChanged:] + 80 3 UIKit 0x30bcaf1c -[UIWebDocumentView keyboardInputChanged:] + 40 ã“ã®ã‚ˆã†ã«ã€ãƒ‡ãƒãƒƒã‚°ãƒã‚¤ãƒŠãƒªã§ã‚‚シンボルãŒå‡ºãªã„ã¨ããŒã‚ã‚Šã¾ã™ã€‚ symolicatecrashを使ã£ã¦ã‚‚ã ã‚ã§ãŒã£ã‹ã‚Šã€‚ ã§ã‚‚ã€dSYMãŒã‚ã‚‹ã‹ã‚‰é ‘張れã°ãªã‚“ã¨ã‹ãªã‚‹ã‚“ã˜ã‚ƒã？ã¨ã‚„ã£ã¦ã¿ãŸã‚‰ãªã‚“ã¨ã‹ãªã£ãŸã€‚ 普段VisualStudioã®å¾®æ¸©æ¹¯ã«
sips(1) Mac OS X Manual Page
Debugging with GDB The GNU Source-Level Debugger Ninth Edition, for GDB version 6.3.50.20050815-cvs Richard Stallman, Roland Pesch, Stan Shebs, et al. Summary of GDB Free software Free Software Needs Free Documentation Contributors to GDB A Sample GDB Session Getting In and Out of GDB Invoking GDB Choosing files Choosing modes What GDB does during startup Quitting GDB Shell commands Logging output
Getting Started with GDB
ã“ã®ãƒ†ã‚¯ãƒ‹ã‚«ãƒ«ãƒŽãƒ¼ãƒˆã¯ã€Mac OS X ã«ãŠã„ã¦ã€GDB（Mac OS X ã®ãƒ‡ãƒãƒƒã‚¬ï¼‰ã‚’使ã£ãŸã€Cã€C++ã€Objective-C ã«ã‚ˆã‚‹ä¸€èˆ¬çš„ãªãƒ‡ãƒãƒƒã‚°ä½œæ¥ã®æ–¹æ³•ï¼ˆJava ã«ã¯å°‚用ã®ãƒ‡ãƒãƒƒã‚¬ãŒã‚ã‚Šã¾ã™ï¼‰ã€ãŠã‚ˆã³é–‹ç™ºè€…ã«ã¨ã£ã¦å½¹ã«ç«‹ã¤ãƒ’ントã¨ã“ã¤ã‚’説明ã—ã¾ã™ã€‚ 本文書ã¯ã€GDB ã®ã™ã¹ã¦ã‚’説明ã™ã‚‹æ–‡æ›¸ã§ã¯ãªã（詳細ãªãƒžãƒ‹ãƒ¥ã‚¢ãƒ«ã«ã¤ã„ã¦ã¯å‚考文献ã®ç¯€ã‚’å‚照）ã€GDB ã‚’åˆã‚ã¦ä½¿ã†é–‹ç™ºè€…ãŒæŠ±ãã¨è€ƒãˆã‚‰ã‚Œã‚‹ä¸€èˆ¬çš„ãªç–‘å•ã«ç”ãˆã‚‹ã“ã¨ã‚’目的ã¨ã—ã¦ãŠã‚Šã€ä»Šå¾Œå¿…è¦ãªã¨ãã«ç°¡å˜ã«å‚ç…§ã§ãるよã†ã«ãªã£ã¦ã„ã¾ã™ã€‚ã¾ãŸã€ãƒ—ラットフォームã«ä¾å˜ã—ãªã„よã†ã«æ›¸ã‹ã‚Œã¦ã„ã‚‹ GDB ã«é–¢ã™ã‚‹ã»ã‹ã®æ–‡çŒ®ã¨ã¯ç•°ãªã‚Šã€æœ¬æ›¸ã¯ã¯ã£ãり㨠Mac OS X ã«çš„を絞ã£ã¦ã„ã¾ã™ã€‚ 本文書ã¯ã€ã€ŒProject Builder ã«ãŠã‘ã‚‹ GDBã€ã€ã€ŒGDB を使ã£ãŸã‚¢ãƒ—リケーションã®æŽ¥ç¶šã€èµ·å‹•ã€çµ‚了ã€ã€ 「ブレークãƒã‚¤ãƒ³ãƒˆã€ãƒãƒƒ
Debugging with gdb - Table of Contents
Debugging with GDB The GNU Source-Level Debugger Ninth Edition, for GDB version 6.3.50.20050815-cvs Richard Stallman, Roland Pesch, Stan Shebs, et al. Summary of GDB Free software Free Software Needs Free Documentation Contributors to GDB A Sample GDB Session Getting In and Out of GDB Invoking GDB Choosing files Choosing modes What GDB does during startup Quitting GDB Shell commands Logging output
æ—¢ã«èµ·å‹•ã—ã¦ã„るプãƒã‚»ã‚¹ã‚’gdbã§åˆ¶å¾¡ã™ã‚‹:Geekãªãºãƒ¼ã˜
デãƒãƒƒã‚°ã‚„テストを行ã£ã¦ã„ã‚‹ã¨ã€ãƒ—ãƒã‚°ãƒ©ãƒ ãŒç„¡é™ãƒ«ãƒ¼ãƒ—ã«å…¥ã‚Šè¾¼ã‚“ã§è¿”ã£ã¦ã“ãªã„よã†ãªçŠ¶æ³ãŒç™ºç”Ÿã™ã‚‹ã“ã¨ãŒã‚ã‚Šã¾ã™ã€‚ ãã®ãƒã‚°ãŒå†ç¾ã®é›£ã—ã„ã‚‚ã®ã§ã‚ã‚Œã°ã€Œgdbを使ã£ã¦èµ·å‹•ã—ã¨ã‘ã°è‰¯ã‹ã£ãŸã€‚。。ã€ã¨ã„ã†ã‚ˆã†ãªæ°—分ã«ãªã‚‹æ™‚ãŒã‚ã‚Šã¾ã™ã€‚ ã—ã‹ã—ã€gdbã«ã¯æ—¢ã«èµ·å‹•ã—ã¦ã„るプãƒã‚°ãƒ©ãƒ ã®åˆ¶å¾¡ã‚’横ã‹ã‚‰å¥ªã„å–ã£ã¦ãƒ‡ãƒãƒƒã‚°ã™ã‚‹ã¨ã„ã†ã‚ã‚ŠãŒãŸã„機能ãŒã‚ã‚Šã¾ã™ã€‚ ã“ã“ã§ã¯ã€æ—¢ã«èµ·å‹•ã—ã¦ã„るプãƒã‚°ãƒ©ãƒ ã‚’gdbã§ã„ã˜ã‚‹æ–¹æ³•ã‚’説明ã—ãŸã„ã¨æ€ã„ã¾ã™ã€‚ 実際ã«ãƒ‡ãƒãƒƒã‚°ã‚’ã™ã‚‹æ–¹æ³•ã‚’説明ã™ã‚‹ã¨ã„ã†ã‚ˆã‚Šã¯ã€gdbã§å‹•ã„ã¦ã„るプãƒã‚»ã‚¹ã«ã‚¢ã‚¿ãƒƒãƒã™ã‚‹ä¾‹ã‚’説明ã—ã¾ã™ã€‚ ãã®å¾Œã®ãƒ‡ãƒãƒƒã‚°ã«é–¢ã—ã¦ã¯ã€ã„ã¤ã‚‚ã®gdbã®ä½¿ã„方をã—ã¦ã„ãŸã ã‘ã‚Œã°å¤§ä¸ˆå¤«ã§ã™ã€‚ ã¨ã‚Šã‚ãˆãšã‚¢ã‚¿ãƒƒãƒã—ã¦ã¿ã‚‹ æ—¢ã«èµ·å‹•ã—ã¦ã„るプãƒã‚»ã‚¹ã‚’gdbを解æžã™ã‚‹ã®ã¯éžå¸¸ã«ç°¡å˜ã§ã™ã€‚ å˜ã«gdbã§ãƒ—ãƒã‚»ã‚¹ã«ã‚¢ã‚¿ãƒƒãƒã™ã‚‹ã ã‘ã§ã™ã€‚ gdbã§ãƒ—ãƒã‚»ã‚¹ã«ã‚¢ã‚¿ãƒƒãƒã™ã‚‹æ–¹æ³•ã¯2ã¤ã‚ã‚Šã¾
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