[B! valgrind] dannã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯

dann id:dann

valgrindã«é–¢ã™ã‚‹dannã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯ (24)

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2011-08-01 - valgrind è«–æ–‡èªã‚“ã ãƒ¡ãƒ¢ - å…¼é›‘è¨˜
æ™‚ã€… valgrind ã¯ã‚ªãƒ¼ãƒ‘ãƒ¼ãƒ„ã ã¨ã‹ãã†ã„ã†ä¸»å¼µã‚’ã—ã¦ãŸã‚Šã—ã¾ã™ã€‚ã‚³ãƒ¼ãƒ‰ã¨ã‹è«–æ–‡ã¨ã‹ãƒãƒ©è¦‹ãã‚‰ã„ã¯ã—ã¦ãŸã®ã§ã™ãŒã€ã¾ã‚ã¡ã‚ƒã‚“ã¨çœºã‚ã¦ã¿ãŸã®ã§ãƒ¡ãƒ¢ã€‚ Valgrind: A Framework for Heavyweight Dynamic Binary Instrumentation http://valgrind.org/docs/valgrind2007.pdf 1. ã‚¤ãƒ³ãƒˆãƒ 1.1 DBA and DBI Dynamic binary analysis ã£ã¦ç¨®é¡žã®ãƒ„ãƒ¼ãƒ«ãŒã‚ã‚‹ã‚“ã§ã™ã‚ˆã€ã¨ç´¹ä»‹ã€‚ãã®æ‰‹ã®ãƒ„ãƒ¼ãƒ«ã¯ Dynamic binary instrumentation ã§å®Ÿè£…ã•ã‚Œã¦ã‚‹ã“ã¨ãŒå¤šã„ã§ã™ã‚ˆã€ã¨ã€‚ã¤ã¾ã‚Šå®Ÿè¡Œæ™‚ã«ã‚³ãƒ¼ãƒ‰åŸ‹ã‚ã‚‹ã£ã¦è©±ã€‚ DBI ã£ã¦ã®ã¯ã™ã’ãƒ¼æ±Žç”¨æ€§ã‚ã‚‹ã‚“ã§ã™ã‘ã©ã‚¤ãƒžã‚¤ãƒæ³¨ç›®ã•ã‚Œã¦ãªãã¦ã‚ˆã‚ã—ããªã„ã€ã¨ã€‚ 1.2 Shadow Value Tools an
dann 2011/08/03
valgrind
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Debugging Mozilla with Helgrind - Mozilla | MDN
Valgrind has a race-detection tool named Helgrind, but you're almost certainly better off using ThreadSanitizer, which is a similar race-detection tool that comes with clang and has wider use within Mozilla.
dann 2011/06/12
valgrind

helgrind

multithread

debugging
ãƒªãƒ³ã‚¯
Valgrind | Helgrind: a thread error detector
To use this tool, you must specify --tool=helgrind on the Valgrind command line. Helgrind is a Valgrind tool for detecting synchronisation errors in C, C++ and Fortran programs that use the POSIX pthreads threading primitives. The main abstractions in POSIX pthreads are: a set of threads sharing a common address space, thread creation, thread joining, thread exit, mutexes (locks), condition variab
dann 2011/06/12
valgrind

helgrind

multithread

debugging
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Massif: a heap profiler
dann 2011/04/14
valgrind

massif
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Valgrind 3.3.0 and the new massif | toofishes.net
dann 2011/04/14
valgrind

massif
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C(++)è¨€èªž: valgrindã®ä½¿ã„æ–¹ (massif)
(2-3) Massif: ãƒ’ãƒ¼ãƒ—ãƒ—ãƒãƒ•ã‚¡ã‚¤ãƒ©ã‚’ä½¿ã† Massifã‚’ç”¨ã„ã‚‹ã¨ãƒ—ãƒã‚°ãƒ©ãƒ ãŒä½¿ç”¨ã™ã‚‹ãƒ’ãƒ¼ãƒ—ã‚’æ¤œæŸ»ã™ã‚‹äº‹ãŒå‡ºæ¥ã‚‹ã€‚ä¾‹ãˆã°ã©ã‚Œãã‚‰ã„ãƒ¡ãƒ¢ãƒªã‚’ä½¿ç”¨ã—ã¦ã„ã‚‹ã®ã‹ã¨ã‹ã€ã‚¹ã‚¿ãƒƒã‚¯ã®æ¶ˆè²»é‡ã¨ã‹ã€‚æ›´ã«ã‚¢ã‚¦ãƒˆãƒ—ãƒƒãƒˆã¨ã—ã¦PostScriptå½¢å¼ã‚’ä½¿ç”¨ã—ãƒ¡ãƒ¢ãƒªä½¿ç”¨é‡ã‚’å¯è¦–åŒ–ã™ã‚‹äº‹ãŒå‡ºæ¥ã‚‹ã€‚ è©¦ã—ã«SigSchemeã‚’ä»¥ä¸‹ã®ã‚ˆã†ã«ãƒ—ãƒãƒ•ã‚¡ã‚¤ãƒªãƒ³ã‚°ã—ã¦ã¿ãŸçµæžœã‚’å¼µã‚Šä»˜ã‘ã‚‹ã€‚ãŠä½¿ã„ã®PostScript Viewerã§å¾¡è¦§ä¸‹ã•ã„ã€‚ libtool --mode=execute valgrind --tool=massif ./sscm bench/bench-let-loop.scm
dann 2011/04/14
valgrind
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How to exclude certain child processes to run under valgrind?
dann 2011/04/14
trace-children-skip

valgrind
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Valgrind - wiki.zmanda.com
dann 2011/04/14
valgrind
ãƒªãƒ³ã‚¯
C(++)è¨€èªž: valgrindã®ä½¿ã„æ–¹ (cachegrind)
ubuntu% gcc cache.c; time ./a.out ./a.out 0.41s user 0.03s system 99% cpu 0.444 total ubuntu% gcc -DBAD cache.c; time ./a.out ./a.out 1.98s user 0.03s system 99% cpu 2.020 total ubuntu% gcc cache.c; valgrind --tool=cachegrind ./a.out ==11733== Cachegrind, an I1/D1/L2 cache profiler. ==11733== Copyright (C) 2002-2005, and GNU GPL'd, by Nicholas Nethercote et al. ==11733== Using LibVEX rev 1367, a
dann 2011/03/31
valgrind

performance
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libxml2 å†…ã®ãƒ¡ãƒ¢ãƒªã®è§£æ”¾ - ITæˆ¦è¨˜
ã¡ã‚‡ã£ã¨ãƒ¡ãƒ¢ ä»Šæ—¥ã‚‚ valgrind ä½¿ã£ã¦ã¾ã™ libxml2 ã‚’ä½¿ã£ã¦ä»¥ä¸‹ã®ã‚ˆã†ãª XML ã®ãƒ‘ãƒ¼ã‚¹å‡¦ç†ã‚’æ›¸ã #include <iostream> #include <sstream> #include <boost/shared_ptr.hpp> #include <libxml/xmlreader.h> static int read(void* in, char* buf, int len) { return static_cast<std::istream*>(in)->readsome(buf, len); } int main() { std::istringstream in("<a><b/>hoge<c/></a>"); boost::shared_ptr<xmlTextReader> reader(xmlReaderForIO(read, NULL, &in,
dann 2011/03/31
valgrind

c++

libxml2
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PePcoMiX.net - æœ€å¼·ã®ãƒ¡ãƒ¢ãƒªãƒ¼ãƒ‡ãƒãƒƒã‚¬ãƒ¼valgrindã®ä½¿ã„æ–¹-æœ€å¼·ã®ãƒ¡ãƒ¢ãƒªãƒ¼ãƒ‡ãƒãƒƒã‚¬ãƒ¼valgrindã®ä½¿ã„æ–¹-PukiWiki
ã‚µã‚¤ãƒˆURL http://valgrind.org/ valgrind ã¯ã€linux ç’°å¢ƒã§å‹•ãã€ã‹ãªã‚Šå¼·åŠ›ãªãƒ¡ãƒ¢ãƒªãƒ¼ãƒ‡ãƒãƒƒã‚¬ãƒ¼ã§ã™ã€‚ ãƒ¡ãƒ¢ãƒªãƒ¼ãƒªãƒ¼ã‚¯ã‚„ Segmentation falt ãªã©ã®å…·ä½“çš„ãªä½ç½®ã‚’æ•™ãˆã¦ãã‚Œã¾ã™ã€‚ æº–å‚™ valgrind ã®ã‚µã‚¤ãƒˆã‹ã‚‰ã€ãƒ‘ãƒƒã‚±ãƒ¼ã‚¸ã‚’ãƒ€ã‚¦ãƒ³ãƒãƒ¼ãƒ‰ã—ã¦ãã¦ã‚³ãƒ³ãƒ‘ã‚¤ãƒ«ã™ã‚‹ã‹ã€Fedora Core ã§ã‚ã‚Œã°ã€yum install valgrind ã§ã‚¤ãƒ³ã‚¹ãƒˆãƒ¼ãƒ«ã§ãã¾ã™ã€‚ ãã®ä»–ã®ãƒ‡ã‚£ã‚¹ãƒˆãƒªãƒ“ãƒ¥ãƒ¼ã‚·ãƒ§ãƒ³ã§ã¯ã€apt-get install valgrind ã§ã‚‚å¯èƒ½ã§ã™ã€‚ åˆ©ç”¨æ–¹æ³• valgrind -v --error-limit=no --leak-check=yes --show-reachable=no DebugTarget 2>&1 | tee valgrind.log ç‰ã¨ã™ã‚Œã°ã€ãƒ¡ãƒ¢ãƒªãƒ¼ãƒã‚§ãƒƒã‚¯ã®çµæžœã‚’ãƒã‚°ãƒ•ã‚¡ã‚¤ãƒ«ã«æ›¸ãå‡ºã—
dann 2011/03/31
valgrind
ãƒªãƒ³ã‚¯
KCachegrindã‚’ä½¿ã£ãŸã‚³ãƒ¼ãƒ‰æ”¹å–„ (æº–å‚™ç·¨) Â« Stop Making Sense
ã¯ã˜ã‚ã« KCachegrind ã¯ã€ãƒ—ãƒã‚°ãƒ©ãƒ ã®ãƒ—ãƒãƒ•ã‚¡ã‚¤ãƒ«çµæžœã‚’ã‚°ãƒ©ãƒ•ã‚£ã‚«ãƒ«ã«åˆ†ã‹ã‚Šæ˜“ãè¡¨ç¤ºã—ã¦ãã‚Œã‚‹ã‚ªãƒ¼ãƒ—ãƒ³ã‚½ãƒ¼ã‚¹ã®ã‚½ãƒ•ãƒˆã‚¦ã‚§ã‚¢ã§ã™ã€‚ KCachegrindã‚’æ´»ç”¨ã™ã‚Œã°ã€æ€§èƒ½ä¸Šã®ãƒœãƒˆãƒ«ãƒãƒƒã‚¯ã‚„ã€ãƒ¡ãƒ¢ãƒªãƒªãƒ¼ã‚¯ç®‡æ‰€ã®ç‰¹å®šãªã©ã€æ©Ÿèƒ½ãƒ†ã‚¹ãƒˆã§ã¯åˆ†ã‹ã‚‰ãªã„ã‚ˆã†ãªå•é¡Œã®æ¤œå‡ºãŒå®¹æ˜“ã«ãªã‚Šã€ã‚½ãƒ¼ã‚¹ã‚³ãƒ¼ãƒ‰ã®æ”¹å–„ã«å½¹ç«‹ã¦ã‚‹ã“ã¨ãŒå‡ºæ¥ã¾ã™ã€‚ ã“ã®è¨˜äº‹ã§ã¯ã€KCachegrindã®ç´¹ä»‹ã‹ã‚‰å§‹ã¾ã‚Šã€æœ€çµ‚çš„ã«ã¯ãƒ—ãƒãƒ•ã‚¡ã‚¤ãƒ«çµæžœã‚’è§£æžã—ã¦ãƒ—ãƒã‚°ãƒ©ãƒ ã®å•é¡Œç‚¹(ãƒã‚°ãƒ»ãƒœãƒˆãƒ«ãƒãƒƒã‚¯)ã‚’è¦‹ã¤ã‘ã‚‹ã¾ã§ã€ã«ã¤ã„ã¦3å›žã«åˆ†ã‘ã¦èª¬æ˜Žã—ã¦ã„ãã¾ã™ã€‚ ä»¥ä¸‹ã®æ§‹æˆã‚’äºˆå®šã—ã¦ã„ã¾ã™ã€‚ ä»Šå›ž(æº–å‚™ç·¨)ã¯KCachegrindã®æ¦‚è¦ æ¬¡å›ž(å…¥é–€ç·¨)ã¯KCachegrindã®ä½¿ã„æ–¹ æœ€å¾Œ(å®Ÿè·µç·¨)ã¯KCachegrindã‚’ä½¿ã£ã¦ãƒ—ãƒã‚°ãƒ©ãƒ ã®å•é¡Œç‚¹ã‚’è¦‹ã¤ã‘ã‚‹æ–¹æ³• å¿…è¦ãªã‚½ãƒ•ãƒˆã‚¦ã‚§ã‚¢ KCachegrind ã¯ä»–ã®ãƒ„ãƒ¼ãƒ«ã¨çµ„ã¿åˆã‚ã›ã‚‹ã“ã¨ãŒå‰æ
dann 2011/03/31
valgrind
ãƒªãƒ³ã‚¯
KCachegrindã‚’ä½¿ã£ãŸã‚³ãƒ¼ãƒ‰æ”¹å–„ (å®Ÿè·µç·¨) Â« Stop Making Sense
å›³ã®æŽ²è¼‰ã¯çœç•¥ã—ã¾ã™ãŒã€string::reserve() ã® Call Graph ã§ã‚‚æ”¹å–„ã•ã‚Œã¦ã„ã‚‹ã“ã¨ãŒç¢ºèªå‡ºæ¥ã¾ã™ã€‚ é–‹ç™ºè€…ãŒç›´æŽ¥new/deleteã‚’è¨˜è¿°ã—ã¦ã„ãªãã¦ã‚‚ã€ãƒ—ãƒãƒ•ã‚¡ã‚¤ãƒ«ã‚’å–ã£ã¦ã¿ã‚‹ã¨ãƒ’ãƒ¼ãƒ—ã®å–å¾—ãƒ»è§£æ”¾ãŒé »ç™ºã—ã¦ã¦ã€ã—ã‹ã‚‚stringã‚¯ãƒ©ã‚¹çµ¡ã¿ãŒçµæ§‹ãªå‰²åˆâ€¦ã¨ã„ã†ã“ã¨ãŒæ™‚ã€…æœ‰ã‚Šã¾ã™ã€‚(ä¾‹ãˆã°ã€è©³ç´°ãªãƒã‚°ã‚’å¤šãå‡ºã—ã¦ã„ã‚‹ã‚ˆã†ãªçœŸé¢ç›®ãªãƒ—ãƒã‚°ãƒ©ãƒ ã«ãã®å‚¾å‘ãŒâ€¦) é »ç¹ã«ãƒ’ãƒ¼ãƒ—ã®å–å¾—ãƒ»è§£æ”¾ã‚’ç¹°ã‚Šè¿”ã™ã‚ˆã†ãªã‚·ã‚¹ãƒ†ãƒ ã¯ã€ä¾‹ãˆå—å…¥ã‚Œè©¦é¨“ã‚’é€šéŽã—ãŸã¨ã—ã¦ã‚‚ã€ãã®å¾Œã€é•·æœŸå®‰å®šç¨¼åƒã—ã¦ãã‚Œã‚‹ã‹ä¸å®‰ã«ãªã‚Šã¾ã™ã€‚ä½•ã‹ã®æ‹åã«ã‚·ã‚¹ãƒ†ãƒ å…¨ä½“ãŒä¸å®‰å®šã«ãªã£ãŸã¨ãã€è‡ªåˆ†ãŸã¡ã®æ‹…å½“ã—ãŸãƒ—ãƒã‚»ã‚¹ã¯ã¡ã‚ƒã‚“ã¨å‹•ã„ã¦ãã‚Œã‚‹ã ã‚ã†ã‹â€¦ãªã©ã¨è€ƒãˆã‚‹ã¨ã€å¤œã‚‚çœ ã‚Œã¾ã›ã‚“å¿ƒé…ã«ãªã£ã¦ãã¾ã™ã€‚ STL(ç‰¹ã«ã‚³ãƒ³ãƒ†ãƒŠã‚„stringã‚¯ãƒ©ã‚¹)ã‚’ä½¿ã£ã¦ã„ã‚‹å ´åˆã€ãƒ’ãƒ¼ãƒ—ã®å–å¾—ã‚’å®Œå…¨ã«ç„¡ãã™ã“ã¨ã¯é›£ã—ã„(é™ã‚Šãªãç„¡ç†)ã§ã™ãŒã€å›žæ•°
dann 2011/03/31
valgrind

kcachegrind

performance
ãƒªãƒ³ã‚¯
Valgrind
To use this tool, you must specify --tool=callgrind on the Valgrind command line. Callgrind is a profiling tool that records the call history among functions in a program's run as a call-graph. By default, the collected data consists of the number of instructions executed, their relationship to source lines, the caller/callee relationship between functions, and the numbers of such calls. Optionall
dann 2011/03/31
performance

valgrind

callgrind
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Using Valgrind to debug, verify and optimize your code â€” Norwegian High Performance Computing
dann 2011/03/31
valgrind

debugging
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Thread Sanitizer â€“ Airs â€“ Ian Lance Taylor
I recently ran the gold linker under Thread Sanitizer. Itâ€™s a nice plugin for Valgrind which looks for race conditions in multi-threaded programs. To describe it briefly, it builds Happens-Before relationships based on mutex operations and warns when it notices a write and a read/write to the same memory location without a Happens-Before relationship. This approach can yield false positives to be
dann 2010/02/13
debugging

valgrind
ãƒªãƒ³ã‚¯
ThreadSanitizer - data-race-test - ThreadSanitizer is a Valgrind-based detector of data races - Project Hosting on Google Code
Code Archive Skip to content Google About Google Privacy Terms
dann 2010/02/13
debugging

valgrind
ãƒªãƒ³ã‚¯
Toru Maesaka
dann 2009/12/03
debugging

valgrind
ãƒªãƒ³ã‚¯
ä»™çŸ³æµ©æ˜Žã®æ—¥è¨˜: x86_64 Linux ã§ãƒ¡ãƒ¢ãƒªãƒ»ãƒ‡ãƒãƒƒã‚°ãƒ»ãƒ„ãƒ¼ãƒ« Valgrind ã‚’ä½¿ã†å ´åˆã®æ³¨æ„ç‚¹
æ¬¡ã®ã‚ˆã†ãªãƒ—ãƒã‚°ãƒ©ãƒ test.c ã«ã¤ã„ã¦è€ƒãˆã‚‹: #include <stdio.h> #include <stdlib.h> #include <sys/types.h> #include <string.h> struct test { int32_t len; int8_t buf[16]; }; int main(int argc, char *argv[]) { struct test *p = malloc(sizeof(struct test)); int8_t buf[16]; p->len = sizeof(p->buf); bzero(p->buf, p->len); printf("0x%lX-0x%lX => 0x%lX\n", (long)p->buf, (long)p->buf+p->len-1, (long)buf); bcopy(p->buf, buf,
dann 2009/11/30
valgrind
ãƒªãƒ³ã‚¯
tokuhirom blog
Blog Search when-present<#else>when-missing. (These only cover the last step of the expression; to cover the whole expression, use parenthesis: (myOptionalVar.foo)!myDefault, (myOptionalVar.foo)?? ---- ---- FTL stack trace ("~" means nesting-related): - Failed at: ${entry.path} [in template "__entry.ftlh" at line 3, column 25] - Reached through: #include "__entry.ftlh" [in template "entry.ftlh" at
dann 2009/07/02
valgrind

mac

debugging
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