锘??xml version="1.0" encoding="utf-8" standalone="yes"?>国产高潮久久免费观看,精品久久人妻av中文字幕,色综合久久久久http://www.shnenglu.com/liu1061/category/7482.html鐢熸椿鍜屽伐浣滈兘瑕佸厖婊℃縺鎯?鍚﹀垯浣犳棤娉曚綋浼氬埌娣嬫紦灝借嚧鐨勫揩涔愪笌鐥涜嫤zh-cnTue, 01 Jul 2008 04:38:22 GMTTue, 01 Jul 2008 04:38:22 GMT60Memwatch Tool http://www.shnenglu.com/liu1061/articles/55010.htmlT.S LiuT.S LiuTue, 01 Jul 2008 02:12:00 GMThttp://www.shnenglu.com/liu1061/articles/55010.htmlhttp://www.shnenglu.com/liu1061/comments/55010.htmlhttp://www.shnenglu.com/liu1061/articles/55010.html#Feedback0http://www.shnenglu.com/liu1061/comments/commentRss/55010.htmlhttp://www.shnenglu.com/liu1061/services/trackbacks/55010.html1 浠嬬粛
        MemWatch鐢?Johan  Lindh 緙栧啓錛屾槸涓涓紑鏀炬簮浠g爜 C 璇█鍐呭瓨閿欒媯嫻嬪伐鍏楓侻emWatch鏀寔 ANSI C錛屽畠鎻愪緵緇撴灉鏃ュ織綰綍錛岃兘媯嫻嬪弻閲嶉噴鏀撅紙double-free錛夈侀敊璇噴鏀撅紙erroneous free錛夈佸唴瀛樻硠婕忥紙unfreed memory錛夈佹孩鍑?Overflow)銆佷笅婧?Underflow)絳夌瓑銆?/p>

1.1 MemWatch鐨勫唴瀛樺鐞?br>        MemWatch灝嗘墍鏈夊垎閰嶇殑鍐呭瓨鐢?xFE濉厖錛屾墍浠ワ紝濡傛灉浣犵湅鍒伴敊璇殑鏁版嵁鏄敤0xFE濉厖鐨勶紝閭e氨鏄綘娌℃湁鍒濆鍖栨暟鎹備緥澶栨槸calloc()錛屽畠浼氱洿鎺ユ妸鍒嗛厤鐨勫唴瀛樼敤0濉厖銆?/p>

        MemWatch灝嗘墍鏈夊凡閲婃斁鐨勫唴瀛樼敤0xFD濉厖(zapped with 0xFD).濡傛灉浣犲彂鐜頒綘浣跨敤鐨勬暟鎹槸鐢?xFD濉厖鐨勶紝閭d綘灝變嬌鐢ㄧ殑鏄凡閲婃斁鐨勫唴瀛樸傚湪榪欑鎯呭喌錛屾敞鎰廙emWatch浼氱珛鍗蟲妸涓涓?閲婃斁浜嗙殑鍧椾俊鎭?濉湪閲婃斁浜嗙殑鏁版嵁鍓嶃傝繖涓潡鍖呮嫭鍏充簬鍐呭瓨鍦ㄥ摢鍎塊噴鏀劇殑淇℃伅錛屼互鍙鐨勬枃鏈艦寮忓瓨鏀撅紝鏍煎紡涓?FBI<counter>filename(line)"銆傚:"FBI<267>test.c(12)".浣跨敤FBI浼氶檷浣巉ree()鐨勯熷害錛屾墍浠ラ粯璁ゆ槸鍏抽棴鐨勩備嬌鐢╩wFreeBufferInfo(1)寮鍚?

        涓轟簡甯姪璺熻釜閲庢寚閽堢殑鍐欐儏鍐碉紝MemWatch鑳芥彁渚沶o-mans-land錛圢ML錛夊唴瀛樺~鍏呫俷o-mans-land灝嗕嬌鐢?xFC濉厖.褰搉o-mans-land寮鍚椂錛孧emWatch杞彉閲婃斁鐨勫唴瀛樹負NML濉厖鐘舵併?/p>

1.2鍒濆鍖栧拰緇撴潫澶勭悊
        涓鑸潵璇達紝鍦ㄧ▼搴忎腑浣跨敤MemWatch鐨勫姛鑳斤紝闇瑕佹墜鍔ㄦ坊鍔爉wInit()榪涜鍒濆鍖栵紝騫剁敤瀵瑰簲鐨刴wTerm ()榪涜緇撴潫澶勭悊銆?/p>

        褰撶劧錛屽鏋滄病鏈夋墜鍔ㄨ皟鐢╩wInit()錛孧emWatch鑳借嚜鍔ㄥ垵濮嬪寲.濡傛灉鏄繖縐嶆儏褰紝memwatch浼氫嬌鐢╝text()娉ㄥ唽mwTerm()鐢ㄤ簬atexit-queue. 瀵逛簬浣跨敤鑷姩鍒濆鍖?a onclick="javascript:tagshow(event, '%BC%BC%CA%F5');" href="javascript:;" target=_self>鎶鏈?/font>鏈変竴涓憡璇?濡傛灉浣犳墜鍔ㄨ皟鐢╝texit()浠ヨ繘琛屾竻鐞?a onclick="javascript:tagshow(event, '%B9%A4%D7%F7');" href="javascript:;" target=_self>宸ヤ綔錛宮emwatch鍙兘鍦ㄤ綘鐨勭▼搴忕粨鏉熷墠灝辯粓姝€備負浜嗗畨鍏ㄨ搗瑙侊紝璇鋒樉寮忎嬌鐢╩wInit()鍜宮wTerm().

        娑夊強鐨勫嚱鏁頒富瑕佹湁錛?/p>

mwInit()    mwTerm()    mwAbort()

1.3 MemWatch鐨処/O 鎿嶄綔
        瀵逛簬涓鑸殑鎿嶄綔錛孧emWatch鍒涘緩memwatch.log鏂囦歡銆傛湁鏃訛紝璇ユ枃浠朵笉鑳借鍒涘緩;MemWatch浼氳瘯鍥懼垱寤簃emwatNN.log鏂囦歡錛孨N鍦?1~99涔嬮棿銆?/p>

        濡傛灉浣犱笉鑳戒嬌鐢ㄦ棩蹇楋紝鎴栬呬笉鎯充嬌鐢紝涔熸病鏈夐棶棰樸傚彧瑕佷嬌鐢ㄧ被鍨嬩負"void func(int c)"鐨勫弬鏁拌皟鐢╩wSetOutFunc()錛岀劧鍚庢墍鏈夌殑杈撳嚭閮戒細鎸夊瓧鑺傚畾鍚戝埌璇ュ嚱鏁?

        褰揂SSERT鎴栬匳ERIFY澶辮觸鏃訛紝MemWatch涔熸湁Abort/Retry/Ignore澶勭悊鏈哄埗銆傞粯璁ょ殑澶勭悊鏈哄埗娌℃湁I/O鎿嶄綔錛屼絾鏄細鑷姩涓柇紼嬪簭銆備綘鍙互浣跨敤浠諱綍鍏朵粬Abort/Retry/Ignore鐨勫鐞嗘満鍒?鍙浠ュ弬鏁?void func(int c)"璋冪敤mwSetAriFunc()銆傚悗闈㈠湪1.2浣跨敤涓鑺備細璇︾粏璁茶В銆?/p>

        娑夊強鐨勫嚱鏁頒富瑕佹湁錛?/p>

mwTrace()           mwPuts()        mwSetOutFunc()  mwSetAriFunc()

mwSetAriAction()    mwAriHandler()  mwBreakOut()

1.4 MemWatch瀵笴++鐨勬敮鎸?br>        鍙互灝哅emWatch鐢ㄤ簬C++,浣嗘槸涓嶆帹鑽愯繖涔堝仛銆傝璇︾粏闃呰memwatch.h涓叧浜庡C++鐨勬敮鎸併?/p>

2 浣跨敤
2.1 涓鴻嚜宸辯殑紼嬪簭鎻愪緵MemWatch鍔熻兘
        鍦ㄨ浣跨敤MemWatch鐨?c鏂囦歡涓寘鍚ご鏂囦歡"memwatch.h"

        浣跨敤GCC緙栬瘧錛堟敞鎰忥細涓嶆槸閾炬帴錛夎嚜宸辯殑紼嬪簭鏃訛紝鍔犲叆-DMEMWATCH -DMW_STDIO
        濡傦細gcc -DMEMWATCH -DMW_STDIO –o test.o –c  test1.c

 

2.2 浣跨敤MemWatch鎻愪緵鐨勫姛鑳?br>1錛夊湪紼嬪簭涓父鐢ㄧ殑MemWatch鍔熻兘鏈夛細

        mwTRACE ( const char* format_string, ... );
鎴朤RACE ( const char* format_string, ... );

        mwASSERT ( int, const char*, const char*, int )
鎴朅SSERT ( int, const char*, const char*, int )

        mwVERIFY ( int, const char*, const char*, int )
鎴朧ERIFY ( int, const char*, const char*, int )

        mwPuts ( const char* text )

        ARI鏈哄埗錛?mwSetAriFunc(int (*func)(const char *))錛?br>          mwSetAriAction(int action)錛?br>          mwAriHandler ( const char* cause )錛?/p>

        mwSetOutFunc (void (*func)(int))

        mwIsReadAddr(const void *p, unsigned len )

        mwIsSafeAddr(void *p, unsigned len )

        mwStatistics ( int level )

        mwBreakOut ( const char* cause)

 

        2錛塵wTRACE錛宮wASSERT錛宮wVERIFY鍜宮wPuts欏懼悕鎬濅箟錛屽氨涓嶅啀璧樿堪銆備粎闇瑕佹敞鎰忕殑鏄紝Memwatch瀹氫箟浜嗗畯TRACE,    ASSERT 鍜?VERIFY.濡傛灉浣犲凡浣跨敤鍚屽悕鐨勫畯,memwatch2.61鍙婃洿楂樼増鏈殑memwatch涓嶄細瑕嗙洊浣犵殑瀹氫箟銆侻emWatch2.61鍙婁互鍚庯紝瀹氫箟浜唌wTRACE, mwASSERT 鍜?mwVERIFY瀹忥紝榪欐牱錛屼綘灝辮兘紜畾浣跨敤鐨勬槸memwatch鐨勫畯瀹氫箟銆?.61鐗堟湰鍓嶇殑memwatch浼氳鐩栧凡瀛樺湪鐨勫悓鍚嶇殑TRACE, ASSERT 鍜?VERIFY瀹氫箟銆?/p>

        褰撶劧錛屽鏋滀綘涓嶆兂浣跨敤MemWatch鐨勮繖鍑犱釜瀹忓畾涔夛紝鍙互瀹氫箟MW_NOTRACE, MW_NOASSERT 鍜?MW_NOVERIFY瀹忥紝榪欐牱MemWatch鐨勫畯瀹氫箟灝變笉璧蜂綔鐢ㄤ簡銆傛墍鏈夌増鏈殑memwatch閮介伒鐓ц繖涓鍒欍?/p>

        3錛堿RI鏈哄埗鍗崇▼搴忚緗殑“Abort, Retry, Ignore閫夋嫨闄烽槺銆?/p>

mwSetAriFunc錛?/p>

        璁劇疆“Abort, Retry, Ignore”鍙戠敓鏃剁殑MemWatch璋冪敤鐨勫嚱鏁?褰撹繖鏍瘋緗皟鐢ㄧ殑鍑芥暟鍦板潃鏃訛紝瀹為檯鐨勯敊璇秷鎭笉浼氭墦鍗板嚭鏉ワ紝浣嗕細浣滀負涓涓弬鏁拌繘琛屼紶閫掋?/p>

        濡傛灉鍙傛暟浼犻扤ULL錛孉RI澶勭悊鍑芥暟浼氳鍐嶆鍏抽棴銆傚綋ARI澶勭悊鍑芥暟鍏抽棴鍚庯紝 meewatch浼氳嚜鍔ㄨ皟鐢ㄦ湁mwSetAriAction()鎸囧畾鐨勬搷浣溿?/p>

        姝e父鎯呭喌涓嬶紝澶辮觸鐨凙SSERT() or VERIFY()浼氫腑鏂綘鐨勭▼搴忋備絾榪欏彲浠ラ氳繃mwSetAriFunc()鏀瑰彉錛屽嵆閫氳繃灝嗗嚱鏁?int myAriFunc(const char *)"浼犵粰瀹冨疄鐜般備綘鐨勭▼搴忓繀欏昏闂敤鎴鋒槸鍚︿腑鏂紝閲嶈瘯鎴栬呭拷鐣ヨ繖涓櫡闃便傝繑鍥?鐢ㄤ簬Abort錛?1鐢ㄤ簬Retry錛屾垨鑰?瀵逛簬Ignore銆傛敞鎰弐etry鏃訛紝浼氬鑷磋〃杈懼紡閲嶆柊姹傚?

        MemWatch鏈変釜榛樿鐨凙RI澶勭悊鍣ㄣ傞粯璁ゆ槸鍏抽棴鐨勶紝浣嗕綘鑳介氳繃璋冪敤mwDefaultAri()寮鍚傛敞鎰忚繖浠嶇劧浼氫腑姝綘鐨勭▼搴忛櫎闈炰綘瀹氫箟MEMWATCH_STDIO鍏佽MemWatch浣跨敤鏍囧噯C鐨処/O嫻併?/p>

        鍚屾椂錛岃緗瓵RI鍑芥暟涔熶細瀵艱嚧MemWatch涓嶅皢ARI鐨勯敊璇俊鎭啓鍚戞爣鍑嗛敊璇緭鍑猴紝閿欒瀛楃涓茶屾槸浣滀負'const char *'鍙傛暟浼犻掑埌ARI鍑芥暟.

mwSetAriAction錛?/p>

        濡傛灉娌℃湁ARI澶勭悊鍣ㄨ鎸囧畾錛岃緗粯璁ょ殑ARI榪斿洖鍊箋傞粯璁ゆ槸MW_ARI_ABORT

mwAriHandler錛?/p>

        榪欐槸涓爣鍑嗙殑ARI澶勭悊鍣紝濡傛灉浣犲枩嬈㈠氨灝界鐢ㄣ傚畠灝嗛敊璇緭鍑哄埌鏍囧噯閿欒杈撳嚭錛屽茍浠庢爣鍑嗚緭鍏ヨ幏寰楄緭鍏ャ?/p>

mwSetOutFunc錛?/p>

        灝嗚緭鍑鴻漿鍚戣皟鐢ㄨ呯粰鍑虹殑鍑芥暟(鍙傛暟鍗沖嚱鏁板湴鍧)銆傚弬鏁頒負NULL錛岃〃紺烘妸杈撳嚭鍐欏叆鏃ュ織鏂囦歡memwatch.log.

mwIsReadAddr:

        媯鏌ュ唴瀛樻槸鍚︽湁璇誨彇鐨勬潈闄?/p>

mwIsSafeAddr:

        媯鏌ュ唴瀛樻槸鍚︽湁璇匯佸啓鐨勬潈闄?/p>

mwStatistics:

        璁劇疆鐘舵佹悳闆嗗櫒鐨勮涓恒傚搴旂殑鍙傛暟閲囩敤瀹忓畾涔夈?/p>

#define MW_STAT_GLOBAL  0       /* 浠呮悳闆嗗叏灞鐘舵佷俊鎭?*/

#define MW_STAT_MODULE  1       /* 鎼滈泦妯″潡綰х殑鐘舵佷俊鎭?*/

#define MW_STAT_LINE    2       /* 鎼滈泦浠g爜琛岀駭鐨勭姸鎬佷俊鎭?*/

#define MW_STAT_DEFAULT 0       /* 榛樿鐘舵佽緗?*/

mwBreakOut:

        褰撴煇浜涙儏鍐礛emWatch瑙夊緱涓柇(break into)緙栬瘧鍣ㄦ洿濂芥椂錛屽氨璋冪敤榪欎釜鍑芥暟.濡傛灉浣犲枩嬈嬌鐢∕emWatch,閭d箞鍙互鍦ㄨ繖涓嚱鏁頒笂璁劇疆鎵ц鏂偣銆?/p>

        鍏朵粬鍔熻兘鐨勪嬌鐢紝璇峰弬鑰冩簮浠g爜鐨勮鏄庛?/p>

2.3鍒嗘瀽鏃ュ織鏂囦歡
        鏃ュ織鏂囦歡memwatch.log涓寘鍚殑淇℃伅涓昏鏈変互涓嬪嚑鐐癸細

        嫻嬭瘯鏃ユ湡

        鐘舵佹悳闆嗗櫒鐨勪俊鎭?/p>

        浣跨敤MemWatch鐨勮緭鍑哄嚱鏁版垨瀹忥紙濡俆RACE絳夛級鐨勪俊鎭?/p>

        MemWatch鎹曡幏鐨勯敊璇俊鎭?/p>

        鍐呭瓨浣跨敤鐨勫叏灞淇℃伅緇熻錛屽寘鎷洓鐐癸細1錛夊垎閰嶄簡澶氬皯嬈″唴瀛?2錛夋渶澶у唴瀛樹嬌鐢ㄩ噺3錛夊垎閰嶇殑鍐呭瓨鎬婚噺 4錛変負閲婃斁鐨勫唴瀛樻繪暟

        MemWatch鎹曡幏鐨勯敊璇褰曞湪鏃ュ織鏂囦歡涓殑杈撳嚭鏍煎紡濡備笅錛?/p>

message: <sequence-number> filename(linenumber), information

 

2.4 娉ㄦ剰浜嬮」
        mwInit()鍜宮wTerm()鏄搴旂殑.鎵浠ヤ嬌鐢ㄤ簡澶氬皯嬈wInit()錛屽氨闇瑕佽皟鐢ㄥ灝戞

        mwTerm()鐢ㄤ簬緇堟MemWatch.

        濡傛灉鍦ㄦ祦紼嬩腑鎹曡幏浜嗙▼搴忕殑寮傚父涓柇錛岄偅涔堥渶瑕佽皟鐢╩wAbort()鑰屼笉鏄?/p>

        mwTerm()銆傚嵆浣挎湁鏄劇ず鐨勮皟鐢╩wTerm()錛宮wAbort()涔熷皢緇堟MemWatch銆?/p>

        MemWatch涓嶈兘紜繚鏄嚎紼嬪畨鍏ㄧ殑銆傚鏋滀綘紕板閥浣跨敤Wind32鎴栬呬綘浣跨敤浜嗙嚎紼嬶紝浣滀負2.66錛屾槸鍒濇鏀寔綰跨▼鐨勩傚畾涔塛IN32鎴栬匨W_PTHREADS浠ユ槑紜敮鎸佺嚎紼嬨傝繖浼氬鑷翠竴涓叏灞浜掓枼鍙橀噺浜х敓錛屽悓鏃跺綋璁塊棶鍏ㄥ眬鍐呭瓨閾炬椂錛孧emWatch浼氶攣瀹氫簰鏂ュ彉閲忥紝浣嗚繖榪滀笉鑳借瘉鏄庢槸綰跨▼瀹夊叏鐨勩?/p>

3 緇撹
        浠嶮emWatch鐨勪嬌鐢ㄥ彲浠ュ緱鐭ワ紝鏃犳硶鐢ㄤ簬鍐呮牳妯″潡銆傚洜涓篗emWatch鑷韓灝變嬌鐢ㄤ簡搴旂敤灞傜殑鎺ュ彛錛岃屼笉鏄唴鏍告帴鍙c備絾鏄紝瀵逛簬鏅氱殑搴旂敤灞傜▼搴忥紝鎴戣涓鴻繕鏄瘮杈冩湁鐢紝騫朵笖鏄紑婧愮殑錛屽彲浠ヨ嚜宸變慨鏀逛唬鐮佸疄鐜幫紱瀹冭兘鏂逛究鍦版煡鎵懼唴瀛樻硠婕忥紝鐗瑰埆鏄彁渚涚殑鎺ュ彛鍑芥暟綆鍗曟槗鎳傦紝瀛︿範鎺屾彙寰堝鏄擄紝瀵瑰簲鐢ㄥ眰紼嬪簭鐨?a onclick="javascript:tagshow(event, '%B5%A5%D4%AA%B2%E2%CA%D4');" href="javascript:;" target=_self>鍗曞厓嫻嬭瘯浼氳緝閫傜敤銆?/p>

T.S Liu 2008-07-01 10:12 鍙戣〃璇勮
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Linux 鍐呭瓨璋冭瘯宸ュ叿- Valgrind 浣跨敤鍒濇帰http://www.shnenglu.com/liu1061/articles/55007.htmlT.S LiuT.S LiuTue, 01 Jul 2008 02:02:00 GMThttp://www.shnenglu.com/liu1061/articles/55007.htmlhttp://www.shnenglu.com/liu1061/comments/55007.htmlhttp://www.shnenglu.com/liu1061/articles/55007.html#Feedback0http://www.shnenglu.com/liu1061/comments/commentRss/55007.htmlhttp://www.shnenglu.com/liu1061/services/trackbacks/55007.htmlValgrind 鏄湪linux緋葷粺涓嬪紑鍙戝簲鐢ㄧ▼搴忔椂鐢ㄤ簬璋冭瘯鍐呭瓨闂鐨勫伐鍏楓傚畠灝ゅ叾鎿呴暱鍙戠幇鍐呭瓨綆$悊鐨勯棶棰橈紝瀹冨彲浠ユ鏌ョ▼搴忚繍琛屾椂鐨勫唴瀛樻硠婕忛棶棰樸?/span>

   瀹冪殑瀹樻柟緗戝潃鏄?http://www.valgrind.org/

   涓嬭澆鏈鏂扮増鏈殑Valgrind錛岀洰鍓嶆槸3.2.0銆?wget http://www.valgrind.org/downloads/valkyrie-1.2.0.tar.bz2

   鎵ц甯歌鐨勫畨瑁呮楠わ細./confgure && make && make install銆傛敞鎰忥細 緋葷粺蹇呴』瀹夎QT鐨勫紑鍙戝寘銆傚嵆渚胯繖鏍峰湪make 鏃惰繕鏄嚭鐜皅platformdefs.h榪欎釜鏂囦歡鎵句笉鍒扮殑鎯呭喌錛屽鑷磎ake澶辮觸銆傛煡鎵劇郴緇熶腑鐨剄platformdefs.h 涔嬪悗錛屽彂鐜版病鏈夊瓨鍦ㄤ簬qt鐨勬爣鍑嗗ご鏂囦歡鐩綍/usr/lib/qt-3.3/include銆傚鏄皢/usr/lib/qt-3.3/mkspecs/linux-g++/ 鐩綍涓嬭澶存枃浠跺鍒舵爣鍑嗗ご鏂囦歡鐩綍錛岄噸鏂癿ake 錛屽悗闈竴鍒嘜K銆?/p>

鍒濇浣跨敤
    緙栬瘧濡備笅浠g爜:  gcc -Wall example.c -g -o example 

#include <stdlib.h>
            void f(void)
            {
            int* x = malloc(10 * sizeof(int));
            x[10] = 0;        // problem 1: heap block overrun
            }                    // problem 2: memory leak -- x not freed
            int main(void)
            {
            f();
            return 0;
            }

     娉ㄦ剰錛歡cc 鐨?g 閫夐」璁¬algrind璋冭瘯杈撳嚭鏃舵寚鍑虹浉搴斾俊鎭殑浠g爜鎵鍦ㄧ殑琛屽彿銆?/p>

 
valgrind --tool=memcheck --leak-check=yes ./example

==6742== Memcheck, a memory error detector for x86-linux.
==6742== Copyright (C) 2002-2004, and GNU GPL'd, by Julian Seward et al.
==6742== Using valgrind-2.2.0, a program supervision framework for x86-linux.
==6742== Copyright (C) 2000-2004, and GNU GPL'd, by Julian Seward et al.
==6742== For more details, rerun with: -v
==6742==
==6742== Invalid write of size 4
==6742==    at 0x8048384: f (example.c:6)
==6742==    by 0x80483AC: main (example.c:12)
==6742==  Address 0x1B908050 is 0 bytes after a block of size 40 alloc'd
==6742==    at 0x1B904984: malloc (vg_replace_malloc.c:131)
==6742==    by 0x8048377: f (example.c:5)
==6742==    by 0x80483AC: main (example.c:12)
==6742==
==6742== ERROR SUMMARY: 1 errors from 1 contexts (suppressed: 12 from 1)
==6742== malloc/free: in use at exit: 40 bytes in 1 blocks.
==6742== malloc/free: 1 allocs, 0 frees, 40 bytes allocated.
==6742== For counts of detected errors, rerun with: -v
==6742== searching for pointers to 1 not-freed blocks.
==6742== checked 1360800 bytes.
==6742==
==6742==
==6742== 40 bytes in 1 blocks are definitely lost in loss record 1 of 1
==6742==    at 0x1B904984: malloc (vg_replace_malloc.c:131)
==6742==    by 0x8048377: f (example.c:5)
==6742==    by 0x80483AC: main (example.c:12)
==6742==
==6742== LEAK SUMMARY:
==6742==    definitely lost: 40 bytes in 1 blocks.
==6742==    possibly lost:   0 bytes in 0 blocks.
==6742==    still reachable: 0 bytes in 0 blocks.
==6742==         suppressed: 0 bytes in 0 blocks.
==6742== Reachable blocks (those to which a pointer was found) are not shown.
==6742== To see them, rerun with: --show-reachable=yes

   涓婇潰鐨凜紼嬪簭瀛樺湪涓や釜閿欒錛?. 鏁扮粍涓嬫爣瓚婄晫錛?. 鍒嗛厤鐨勫唴瀛樻病鏈夐噴鏀撅紝瀛樺湪鍐呭瓨娉勯湶鐨勯棶棰樸傚浜庨敊璇?錛岀湅Valgrind鐨勮皟璇曚俊鎭墖鏂?
==6742== Invalid write of size 4
==6742==    at 0x8048384: f (example.c:6)
==6742==    by 0x80483AC: main (example.c:12)
==6742==  Address 0x1B908050 is 0 bytes after a block of size 40 alloc'd
==6742==    at 0x1B904984: malloc (vg_replace_malloc.c:131)
==6742==    by 0x8048377: f (example.c:5)

瀵逛簬閿欒2錛岀湅榪欎釜

==6742== malloc/free: 1 allocs, 0 frees, 40 bytes allocated.

......

==6742== 40 bytes in 1 blocks are definitely lost in loss record 1 of 1
==6742==    at 0x1B904984: malloc (vg_replace_malloc.c:131)
==6742==    by 0x8048377: f (example.c:5)
==6742==    by 0x80483AC: main (example.c:12)



T.S Liu 2008-07-01 10:02 鍙戣〃璇勮
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