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Native涓嬪浣曡幏鍙栬皟鐢ㄦ爤錛?PDF 涓嬭澆
鏈珯鏁寸悊涓嬭澆錛?/strong>
閾炬帴錛?a target="_blank">https://pan.baidu.com/s/1Swf6BtTejHtkCc8PKoEzMQ
鎻愬彇鐮侊細(xì)7d72
鐩稿叧鎴浘錛?/strong>
涓昏鍐呭錛?/strong>
Native涓嬪浣曡幏鍙栬皟鐢ㄦ爤錛?/div>
2019-02-02 simsun
Android寮€鍙戦珮鎵嬭 榪涘叆璇劇▼
璁茶堪錛氬啹姘稿悏
鏃墮暱 00:54 澶у皬 854.15K
浣犲ソ錛屾垜鏄?simsun錛屾浘鍦ㄥ井淇′粠浜?Android 寮€鍙戯紝涔熸槸寮€婧愮埍濂借€呫€丷ust 璇█“閾?/div>
綺?rdquo;銆傚簲緇嶆枃閭€(gè)璇鳳紝寰堥珮鍏村彲浠ュ湪“楂樻墜璇?rdquo;閲屽拰浣犲垎浜竴浜涚紪璇戞柟闈㈢殑搴曞眰鐭ヨ瘑銆?/div>
褰撴垜浠湪璋冭瘯 Native 宕╂簝鎴栬€呭湪鍋?profiling 鐨勬椂鍊欐槸鍗佸垎渚濊禆 backtrace 鐨勶紝楂樿川閲忕殑
backtrace 鍙互澶уぇ鍑忓皯鎴戜滑淇宕╂簝鐨勬椂闂淬€備絾浣犳槸鍚︿簡(jiǎn)瑙ｇ郴緇熸槸濡備綍鐢熸垚 backtrace
鐨勫憿錛熶粖澶╂垜浠氨鏉ユ帰绱竴涓?backtrace 鑳屽悗鐨勬晠浜嬨€?/div>
涓嬮潰鏄竴涓父瑙佺殑 Native 宕╂簝銆傞€氬父宕╂簝鏈韓騫舵病鏈変換浣?backtrace 淇℃伅錛屽彲浠ョ洿鎺ヨ幏寰?/div>
鐨勫氨鏄綋鍓嶅瘎瀛樺櫒鐨勫€鹼紝浣嗘樉鐒?backtrace 鎵嶆槸鑳藉甯姪鎴戜滑淇 Bug 鐨勫叧閿€?/div>
顧?1 pid: 4637, tid: 4637, name: crasher >>> crasher <<<
顦?澶嶅埗浠ｇ爜
顦?顧?涓嬭澆APP 顧?/div>
2 signal 6 (SIGABRT), code -6 (SI_TKILL), fault addr --------
3 Abort message: 'some_file.c:123: some_function: assertion "false" failed'
4 r0 00000000 r1 0000121d r2 00000006 r3 00000008
5 r4 0000121d r5 0000121d r6 ffb44a1c r7 0000010c
6 r8 00000000 r9 00000000 r10 00000000 r11 00000000
7 ip ffb44c20 sp ffb44a08 lr eace2b0b pc eace2b16
8 backtrace:
9 #00 pc 0001cb16 /system/lib/libc.so (abort+57)
10 #01 pc 0001cd8f /system/lib/libc.so (__assert2+22)
11 #02 pc 00001531 /system/bin/crasher (do_action+764)
12 #03 pc 00002301 /system/bin/crasher (main+68)
13 #04 pc 0008a809 /system/lib/libc.so (__libc_init+48)
14 #05 pc 00001097 /system/bin/crasher (_start_main+38)
鍦ㄩ槄璇誨悗闈㈢殑鍐呭涔嬪墠錛屼綘鍙互鍏堢粰鑷繁 2 鍒嗛挓鏃墮棿錛屾€濊€冧竴涓嬬郴緇熸槸濡備綍鐢熸垚
backtrace 鐨勫憿錛熸垜浠€氬父鎶婄敓鎴?backtrace 鐨勮繃紼嬪彨浣?unwind錛寀nwind 鐪嬩技鍜屾垜浠鉤
鏃跺紑鍙戝茍娌℃湁浠€涔堝叧緋伙紝浣嗗叾瀹炲緢澶氬姛鑳介兘鏄緷璧?unwind 鐨勩€備婦涓緥瀛愶紝姣斿浣犺緇樺埗
鐏劙鍥炬垨鑰呮槸鍦ㄥ穿婧冨彂鐢熸椂寰楀埌 backtrace錛岄兘闇€瑕佷緷璧?unwind銆?/div>
涔︽湰涓殑 unwind
1. 鍑芥暟璋冪敤榪囩▼
濡傛灉浣犲湪澶у鏃舵湡淇繃姹囩紪鍘熺悊榪欓棬璇劇▼錛岀浉淇′綘浼?xì)瀵逛笅闈㈢殑鍐呭杩樻湁鍗拌薄銆備笅鍥懼氨鏄竴涓?/div>
闈炲父鏍囧噯鐨勫嚱鏁拌皟鐢ㄧ殑榪囩▼銆?/div>
棣栧厛鍋囪鎴戜滑澶勪簬鍑芥暟 main() 騫跺噯澶囪皟鐢ㄥ嚱鏁?foo()錛岃皟鐢ㄦ柟浼?xì)鎸夊€掑簭鍘嬪叆鍙傛暟銆傛鏃?/div>
絎竴涓弬鏁頒細(xì)鍦ㄨ皟鐢ㄦ爤鏍堥《銆?/div>
璋冪敤 invoke foo() 浼寚浠わ紝鍘嬪叆褰撳墠瀵勫瓨鍣?EIP 鐨勫€煎埌鏍堬紝鐒跺悗杞藉叆鍑芥暟 foo() 鐨勫湴鍧€
鍒?EIP銆?/div>
姝ゆ椂錛岀敱浜庢垜浠凡緇忔洿鏀逛簡(jiǎn) EIP 鐨勫€鹼紙涓?foo() 鐨勫湴鍧€錛夛紝鐩稿綋浜庢垜浠凡緇忚繘鍏ヤ簡(jiǎn)鍑芥暟
foo()銆傚湪鎵ц涓€涓嚱鏁頒箣鍓嶏紝緙栬瘧鍣ㄩ兘浼?xì)缁欐瘡涓嚱鏁板啓涓€孌靛簭璦€錛坧rologue錛夛紝榪欓噷浼?/div>
鍘嬪叆鏃х殑 EBP 鍊鹼紝騫惰祴浜堝綋鍓?EBP 鍜?ESP 鏂扮殑鍊鹼紝浠庤€屽艦鎴愭柊鐨勪竴涓嚱鏁版爤銆?/div>
涓嬩竴姝ュ氨琛屾墽琛屽嚱鏁?foo() 鏈韓鐨勪唬鐮佷簡(jiǎn)銆?/div>
緇撴潫鎵ц鍑芥暟 foo() 騫跺噯澶囪繑鍥烇紝榪欓噷緙栬瘧鍣ㄤ篃浼?xì)缁欐瘡涓嚱鏁版彃鍏ヤ竴孌靛熬澹?/div>
錛坋pilogue錛夌敤浜庢仮澶嶈皟鐢ㄦ柟鐨?ESP 鍜?EBP 鏉ラ噸寤轟箣鍓嶅嚱鏁扮殑鏍堝拰鎭㈠瀵勫瓨鍣ㄣ€?/div>
鎵ц榪斿洖鎸囦護(hù)錛坮et錛夛紝琚皟鐢ㄥ嚱鏁扮殑灝懼０錛坋pilogue錛夊凡緇忔仮澶嶄簡(jiǎn) EBP 鍜?ESP錛岀劧鍚庢垜
浠彲浠ヤ粠琚仮澶嶇殑鏍堜腑渚濇 pop 鍑?EIP銆佹墍鏈夌殑鍙傛暟浠ュ強(qiáng)琚殏瀛樼殑瀵勫瓨鍣ㄧ殑鍊箋€?/div>
璇誨埌榪欓噷錛岀浉淇″鏋滄病鏈夊榪囨眹緙栧師鐞嗙殑鍚屽鑲畾浼?xì)鏈変竴浜涙嚨錛屾垜鏉ヨВ閲婁竴涓嬩笂闈㈡彁鍒扮殑瀵?/div>
瀛樺櫒緙╁啓鐨勫叿浣撳惈涔夛紝涓婅堪鍛藉悕鍧囦嬌鐢ㄤ簡(jiǎn) x86 鐨勫懡鍚嶆柟寮忋€傝榪欎簺鏄笇鏈涗綘瀵瑰嚱鏁拌皟鐢ㄦ湁
涓€涓垵姝ョ殑鐞嗚В錛屽叾涓湁寰堝緇嗚妭鍦ㄤ笉鍚屼綋緋葷粨鏋勩€佷笉鍚岀紪璇戝櫒涓婄殑琛屼負(fù)閮芥湁鎵€鍖哄埆錛屾墍浠?/div>
璇蜂綘鏀炬澗蹇?jī)鎯呭Q岃窡鎴戜竴璧風(fēng)戶緇悜鍚庣湅銆?/div>
EBP錛氬熀鍧€鎸囬拡瀵勫瓨鍣紝鎸囧悜鏍堝撫鐨勫簳閮ㄣ€?/div>
鍦?ARM 浣撶郴緇撴瀯涓紝R11錛圓RM code錛夋垨鑰?R7錛圱humb code錛夎搗鍒頒簡(jiǎn)
綾諱技鐨勪綔鐢ㄣ€傚湪 ARM64 涓紝姝ゅ瘎瀛樺櫒涓?X29銆?/div>
ESP錛氭爤鎸囬拡瀵勫瓨鍣紝鎸囧悜鏍堝撫鐨勬爤欏?錛?鍦?ARM 涓嬪瘎瀛樺櫒涓?R13銆?/div>
EIP錛氭寚浠ゅ瘎瀛樺櫒錛屽瓨鍌ㄧ殑鏄?CPU 涓嬫瑕佹墽琛岀殑鎸囦護(hù)鐨勫湴鍧€錛孉RM 涓嬩負(fù)
PC錛屽瘎瀛樺櫒涓?R15銆?/div>
2. 鎭㈠璋冪敤甯?/div>
濡傛灉鎴戜滑鎶婁笂榪拌繃紼嬬緝?yōu)畯锛岀珯鍦ㄦ洿楂樹竴灞傝瑙掑幓鐪嬶紝鎵€鏈夌殑鍑芥暟璋冪敤鏍堥兘浼?xì)迮炴垚璋冪敤鍝?/div>
錛坰tack frame錛夛紝姣忎竴涓撫涓兘淇濆瓨浜?jiǎn)鑳鲥鐨勪俊鎭彲浠ユ仮澶嶈皟鐢ㄥ嚱鏁扮殑鏍堝抚銆?br />
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| Java1234瀹樻柟緹?5錛?/td> | 
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| Java1234瀹樻柟緹?5錛?/td> | 838462530 |
鑻忓叕緗戝畨澶?32061202001004鍙?/p>
