it, how will you ever debug it? Brian Kernighan ## How do we debug? Use dynamic checkers (e.g. valgrind, ASAN) Use a debugger (e.g. IntelliJ, GDB) Dynamic logging / probing (e.g. LightRun) printf() case, or panic. # The final piece of advice Use the tools! ## So many tools 1. GDB 2. LLDB 3. Valgrind 4. Sanitizers 5. strace & ltrace 6. libc++ debug mode 7. time travel ## undo ## 。 ![I

Leaks: Tools |Tool|What|How| |---|---|---| |valgrind memcheck|memory error detector|valgrind --tool=memcheck <prog>| |valgrind massif|heap profiler|valgrind --tool=massif <prog>| ## V algrind Leaks: Tools |Tool|What|How| |---|---|---| |valgrind memcheck|memory error detector|valgrind --tool=memcheck <prog>| |valgrind massif|heap profiler|valgrind --tool=massif <prog>| ## V algrind memory cost ## Memory Leaks: Tools .cpp malloc TestAllocator Operating System AddressSanitizer Valgrind  ## Memory Leaks:

techniques. ## V ALGRIND A FRAMEWORK FOR HEAVYWEIGHT DYNAMIC BINARY INSTRUMENTATION — 2007 We focus on Valgrind's unique support for shadow values—a powerful but previously little-studied and difficult-to-implement analysis capabilities. In particular, Valgrind uses shadow values to track extra facts about registers and memory to unlock new superpowers. Folks are used to Valgrind as a use-after-free our out-of-bounds out-of-bounds tool, but that’s just one of Valgrind’s many capabilities. The true feat of Valgrind is its tooling infrastructure: it lets you write JiT manipulations without having to write a JiT compiler. FOR

cache performance Run under cachegrind ## Measuring cache performance Run under cachegrind > valgrind --tool=cachegrind --cache-sim=yes ./run_search ... ## Measuring cache performance

2	==132432== Using Valgrind-3.18.1 and LibVEX; rerun with -h for copyright info
3	... and GNU GPL'd, by Nicholas Nethercote et al.
2 ==132432== Using Valgrind-3.18.1 and LibVEX; rerun with -h for copyright info
3 ...
4 0 码力 | 216 页 | 10.68 MB | 1 年前 3 构建openEuler面向RISC-V的操作系统 |pcre2|PR待 合入|disable jit|http:| |libsecret|PR待 合入|valgrind|http:| |star|PR待 合入|%prep阶段增加riscv配置|http:| |python2|PR待 合入|valgrind|http:| |diffutils|PR待 合入|valgrind|http:| https://gitee.com/openeuler/communit 0 码力 | 18 页 | 985.45 KB | 1 年前 3 Julia 1.1.0 Documentation Replay Framework (rr) 1192 102.3 Using Valgrind with Julia 1193 General considerations 1193 Suppressions 1193 Running the Julia test suite under Valgrind 1193 Caveats 1193 102.4 Sanitizer support ### 102.3 Using Valgrind with Julia Valgrind is a tool for memory debugging, memory leak detection, and profiling. This section describes things to keep in mind when using Valgrind to debug memory issues issues with Julia. ## General considerations By default, Valgrind assumes that there is no self-modifying code in the programs it runs. This assumption works fine in most instances but fails miserably 0 码力 | 1214 页 | 4.21 MB | 2 年前 3 Julia v1.1.1 Documentation Framework (rr) ..... 1194 102.3 Using Valgrind with Julia ..... 1195 General considerations ..... 1195 Suppressions ..... 1195 Running the Julia test suite under Valgrind ..... 1195 Caveats ..... 1195 ### 102.3 Using Valgrind with Julia Valgrind is a tool for memory debugging, memory leak detection, and profiling. This section describes things to keep in mind when using Valgrind to debug memory issues issues with Julia. ## General considerations By default, Valgrind assumes that there is no self-modifying code in the programs it runs. This assumption works fine in most instances but fails miserably 0 码力 | 1216 页 | 4.21 MB | 2 年前 3 Julia 1.3.0 DEV Documentation Replay Framework (rr) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1252 106.3Using Valgrind with Julia . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1253 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1253 Running the Julia test suite under Valgrind . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1253 Caveats . . . . . . . . . . recent version of rr (3.1.0 or higher) is required. 106.3. USING VALGRIND WITH JULIA 1253 106.3 Using Valgrind with Julia Valgrind is a tool for memory debugging, memory leak detec�on, and profiling 0 码力 | 1274 页 | 4.36 MB | 2 年前 3 Julia 1.5.3 Documentation Framework (rr) ..... 1288 96.3 Using Valgrind with Julia ..... 1289 General considerations ..... 1289 Suppressions ..... 1289 Running the Julia test suite under Valgrind ..... 1289 Caveats ..... 1290 ### 96.3 Using Valgrind with Julia Valgrind is a tool for memory debugging, memory leak detection, and profiling. This section describes things to keep in mind when using Valgrind to debug memory issues issues with Julia. ## General considerations By default, Valgrind assumes that there is no self-modifying code in the programs it runs. This assumption works fine in most instances but fails miserably 0 码力 | 1335 页 | 4.41 MB | 2 年前 3 Julia 1.4.1 Documentation Framework (rr) ..... 1290 107.3 Using Valgrind with Julia ..... 1291 General considerations ..... 1291 Suppressions ..... 1291 Running the Julia test suite under Valgrind ..... 1291 Caveats ..... 1292 ### 107.3 Using Valgrind with Julia Valgrind is a tool for memory debugging, memory leak detection, and profiling. This section describes things to keep in mind when using Valgrind to debug memory issues issues with Julia. ## General considerations By default, Valgrind assumes that there is no self-modifying code in the programs it runs. This assumption works fine in most instances but fails miserably 0 码力 | 1312 页 | 4.29 MB | 2 年前 3 共 178 条 1 2 3 4 5 6 18 前往 页 相关搜索词 调试GDBLLDBValgrindSanitizers内存泄漏OOM killer内存使用碎片化AddressSanitizerJust-in-Time Compilationcompiler historydynamic languagebinary translationsecurity缓存友好的设计路径规划机器人计算机缓存结构内存访问模式openEulerRISC-V编译适配软件包内核BitArrayArraysVariablesUUIDMulti-threading多线程文档系统流Julia编程语言动态语言性能优化类型系统多重派发DocumentationREPLDocstringsMarkdown@doc macroFunctionModuleMacro