{"id":44928,"date":"2023-02-13T05:27:36","date_gmt":"2023-02-24T20:53:24","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/44928-2\/"},"modified":"2024-04-29T14:23:06","modified_gmt":"2024-04-29T06:23:06","slug":"44928-2","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/44928-2\/","title":{"rendered":""},"content":{"rendered":"

\u3053\u306e\u8a18\u4e8b\u306f Rust Advent Calendar 2023 \u30b7\u30ea\u30fc\u30ba2 \u306e1\u65e5\u76ee\u306e\u8a18\u4e8b\u3067\u3042\u308b\u3002<\/p>\n

Rust\u306f\u826f\u304f\u3082\u60aa\u304f\u3082\u30b7\u30b9\u30c6\u30e0\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u8a00\u8a9e\u306a\u306e\u3067\u3001\u4f55\u3082\u5de5\u592b\u3057\u306a\u3051\u308c\u3070\u30c7\u30d0\u30c3\u30b0\u306e\u4f53\u9a13\u304cC\u8a00\u8a9e\u3068\u540c\u3058\u30ec\u30d9\u30eb\u306b\u306a\u3063\u3066\u3057\u307e\u3046\u3002\u4f8b\u3048\u3070\u300crust lldb\u300d\u3067\u30b0\u30b0\u308b\u3068\u4e0a\u4f4d\u306b Debugging Rust programs with LLDB is a nightmare \u3068\u3044\u3046\u30b9\u30ec\u30c3\u30c9\u304c\u51fa\u3066\u304d\u3066\u3057\u307e\u3046\u3002<\/p>\n

\u4f7f\u3046\u3079\u304d\u30c4\u30fc\u30eb\u3092\u77e5\u3063\u3066\u3044\u308c\u3070\u5e7e\u5206\u304b\u30de\u30b7\u306a\u4f53\u9a13\u306b\u3067\u304d\u308b\u3002Rust\u30b3\u30f3\u30d1\u30a4\u30e9\u306f\u30c7\u30d0\u30c3\u30ac\u3068\u3057\u3066 LLDB, GDB, WinDbg\/CDB \u3092\u30b5\u30dd\u30fc\u30c8 \u3057\u3066\u3044\u3066\u3001\u50d5\u306fWinDbG\u306f10\u5e74\u304f\u3089\u3044\u89e6\u3063\u3066\u306a\u3044\u306e\u3067\u3001\u3053\u306e\u8a18\u4e8b\u3067\u306fLLDB\u3068GDB\u306b\u3064\u3044\u3066\u66f8\u304f\u3002<\/p>\n

LLDB<\/h2>\n

Apple Silicon\u306eMac\u3060\u3068GDB\u304c\u4f7f\u3048\u306a\u3044\u306e\u3067\u3001\u5fc5\u7136\u7684\u306bLLDB\u3092\u4f7f\u3046\u3053\u3068\u306b\u306a\u308b\u3002<\/p>\n

CodeLLDB<\/h3>\n

GDB\u3068\u540c\u3058\u304f\u3001LLDB\u306b\u3082 gui \u30b3\u30de\u30f3\u30c9\u3067\u8d77\u52d5\u3067\u304d\u308b TUI (Text User Interface) \u304c\u3042\u308b\u306e\u3060\u304c\u3001\u306a\u3093\u3068\u306a\u304fGDB\u306e\u305d\u308c\u3088\u308a\u4f7f\u3044\u3065\u3089\u3044\u6c17\u304c\u3059\u308b\u3057\u3001TUI\u3067\u306f\u306a\u3044\u666e\u901a\u306eGUI\u30d5\u30ed\u30f3\u30c8\u30a8\u30f3\u30c9\u306e\u65b9\u304c\u4f55\u304b\u3068\u4f7f\u3044\u65b9\u3082\u308f\u304b\u308a\u3084\u3059\u304fUI\u3082\u30ea\u30c3\u30c1\u306a\u306e\u3067\u3001GUI\u30d5\u30ed\u30f3\u30c8\u30a8\u30f3\u30c9\u306f\u3042\u3063\u305f\u65b9\u304c\u30c7\u30d0\u30c3\u30b0\u306e\u4f53\u9a13\u306f\u3088\u304f\u306a\u308b\u3002<\/p>\n

VSCode\u62e1\u5f35\u306b CodeLLDB \u3068\u3044\u3046\u306e\u304c\u3042\u308b\u3002VSCode\u3092\u4f7f\u3063\u3066\u3044\u308b\u4eba\u306fCodeLLDB\u3092\u4f7f\u3048\u3070\u305d\u306e\u5834\u3067\u30c7\u30d0\u30c3\u30b0\u304c\u958b\u59cb\u3067\u304d\u3066\u4fbf\u5229\u3002CodeLLDB\u306e\u4f7f\u3044\u65b9\u306f\u3053\u3061\u3089\u306e\u8a18\u4e8b\u306b\u4ee5\u524d\u66f8\u3044\u305f\u3002<\/p>\n

CodeLLDB\u3092\u4f7f\u3063\u3066\u3044\u308b\u3068\u3001enum\u306eVec\u3092\u6301\u3064struct\u3068\u304b\u3092\u773a\u3081\u3066\u3044\u308b\u6642\u306b\u305d\u308c\u305e\u308c\u306eenum\u304c\u3069\u306evariant\u306a\u306e\u304b\u5206\u304b\u3089\u306a\u3044\u3068\u3044\u3046\u554f\u984c\u304c\u3042\u308b\u6c17\u304c\u3057\u3066\u3044\u3066\u307e\u3060\u89e3\u6c7a\u3057\u3066\u3044\u306a\u3044\u306e\u3060\u304c\u3001\u305d\u306e\u3046\u3061\u8abf\u3079\u305f\u3089\u8ffd\u8a18\u3059\u308b\u3002<\/p>\n

rust-lldb<\/h3>\n

\u4f55\u3089\u304b\u306e\u7406\u7531\u3067CLI\u306e lldb \u3092\u4f7f\u3044\u305f\u3044\u3053\u3068\u3082\u3042\u308b\u3068\u601d\u3046\u3002\u7d20\u306e lldb \u30b3\u30de\u30f3\u30c9\u3092\u53e9\u3044\u3066\u3082\u30c7\u30d0\u30c3\u30b0\u306f\u666e\u901a\u306b\u3067\u304d\u308b\u304c\u3001rust-lldb \u3068\u3044\u3046\u30e9\u30c3\u30d1\u30fc\u304b\u3089lldb\u3092\u8d77\u52d5\u3057\u3066\u304a\u304f\u3068\u3001Rust\u7528\u306epretty printer\u304c\u4f7f\u3048\u308b\u3088\u3046\u306b\u306a\u308b\u3002<\/p>\n

\u5f8c\u306f lldb \u3092\u666e\u901a\u306b\u4f7f\u3046\u3060\u3051\u3002\u524d\u8ff0\u3057\u305f\u3088\u3046\u306b\u3001gui \u3068\u3044\u3046\u30b3\u30de\u30f3\u30c9\u3092\u53e9\u304f\u3068TUI\u304c\u8d77\u52d5\u3067\u304d\u308b\u3002<\/p>\n

GDB<\/h2>\n

\u6b21\u306b\u8ff0\u3079\u308b rr \u304c\u4fbf\u5229\u3059\u304e\u308b\u3068\u3044\u3046\u304b\u3001LLDB\u306f\u30ea\u30d7\u30ec\u30a4\u3084Reverse Debugging\u304c\u3067\u304d\u306a\u3044\u6642\u70b9\u3067\u5168\u7136\u8a71\u306b\u306a\u3089\u306a\u3044\u305f\u3081\u3001\u6700\u8fd1\u306f\u307b\u3068\u3093\u3069GDB\u3057\u304b\u4f7f\u3063\u3066\u3044\u306a\u3044\u3002<\/p>\n

rr-debugger<\/h3>\n

rr \u3068\u3044\u3046\u3001GDB\u3092\u62e1\u5f35\u3057\u3066\u4f5c\u3089\u308c\u305f\u30c7\u30d0\u30c3\u30ac\u304c\u3042\u308b\u3002\u7d20\u306eGDB\u3068\u9055\u3063\u3066\u3001rr \u3092\u4f7f\u3046\u3068\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u51e6\u7406\u3092\u8a18\u9332 (rr record \u30b3\u30de\u30f3\u30c9) \u3057\u3066\u304a\u3044\u3066\u3001\u975e\u6c7a\u5b9a\u7684\u306a\u90e8\u5206\u3082\u542b\u3081\u3066record\u3068\u5168\u304f\u540c\u3058\u52d5\u4f5c\u3092\u3059\u308b\u3088\u3046\u306b\u30c7\u30d0\u30c3\u30ac\u3092\u8d77\u52d5 (rr replay) \u3057\u3001\u30ea\u30d0\u30fc\u30b9\u5b9f\u884c (reverse-next, reverse-continue \u306a\u3069) \u3082\u542b\u3081\u305f\u30c7\u30d0\u30c3\u30b0\u304c\u3067\u304d\u308b\u3002<\/p>\n

Rust\u3067\u30b7\u30b9\u30c6\u30e0\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u3092\u3084\u308b\u4eba\u306f\u591a\u3044\u3068\u601d\u3046\u306e\u3060\u304c\u3001\u8a00\u8a9e\u51e6\u7406\u7cfb\u306e\u3088\u3046\u306a\u30ec\u30a4\u30e4\u30fc\u306e\u4f4e\u3044\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u66f8\u3044\u3066\u3044\u308b\u3068\u3001\u30a8\u30e9\u30fc\u306b\u306a\u3063\u305f\u77ac\u9593\u306e\u72b6\u614b\u3092\u8abf\u3079\u3066\u3082\u4f55\u3082\u308f\u304b\u3089\u306a\u3044\u3053\u3068\u306f\u7d50\u69cb\u3042\u308a\u3001\u3057\u304b\u3082\u305d\u306e\u30a8\u30e9\u30fc\u3082\u3054\u304f\u305f\u307e\u306b\u3057\u304b\u767a\u751f\u3057\u306a\u3044\u307f\u305f\u3044\u306a\u3053\u3068\u304c\u3042\u308b\u3002\u305d\u3046\u3044\u3063\u305f\u5834\u5408\u3001rr replay \u3059\u308b\u3068\u305d\u306e\u30a8\u30e9\u30fc\u306e\u518d\u73fe\u7387\u3092100%\u306b\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u3001\u307e\u305f\u30a8\u30e9\u30fc\u306b\u306a\u3063\u305f\u5730\u70b9\u304b\u3089\u9006\u65b9\u5411\u306b\u30b9\u30c6\u30c3\u30d7\u5b9f\u884c\u3067\u304d\u308b\u306e\u3067\u3001\u30c7\u30d0\u30c3\u30b0\u304c\u975e\u5e38\u306b\u697d\u306b\u306a\u308b\u3002<\/p>\n

\u305d\u3046\u3044\u3046\u308f\u3051\u3067\u3001\u30c7\u30d0\u30c3\u30b0\u306b\u306f rr \u3092\u4f7f\u3046\u306e\u304c\u304a\u3059\u3059\u3081\u3067\u3042\u308b\u3002\u30ea\u30d0\u30fc\u30b9\u5b9f\u884c\u306e\u4f7f\u3044\u65b9\u3082\u7c21\u5358\u3067\u3001\u666e\u6bb5\u4f7f\u3063\u3066\u3044\u308bGDB\u306e\u30b3\u30de\u30f3\u30c9\u306b reverse- \u3092\u3064\u3051\u308b\u3060\u3051\u3067\u5927\u4f53\u52d5\u304f\u3002<\/p>\n

\u5358\u306b rr replay \u3059\u308b\u3068\u7d20\u306eGDB\u304c\u8d77\u52d5\u3057\u3066\u3057\u307e\u3046\u306e\u3060\u304c\u3001rr replay -d rust-gdb \u3059\u308b\u3068\u6b21\u306b\u8ff0\u3079\u308b rust-gdb \u304c\u4f7f\u3048\u308b\u3002<\/p>\n

rust-gdb<\/h3>\n

\u3053\u308c\u3082 rust-lldb \u3068\u540c\u3058\u3067\u3001Rust\u5411\u3051\u306epretty print\u304c\u53ef\u80fd\u306aGDB\u306e\u30e9\u30c3\u30d1\u3067\u3042\u308b\u3002\u30c7\u30d5\u30a9\u30eb\u30c8\u3060\u3068\u6709\u52b9\u306b\u306a\u3063\u3066\u306a\u3044\u3088\u3046\u306a\u6c17\u304c\u3059\u308b\u304c\u3001set print pretty on \u3059\u308c\u3070\u52d5\u304f\u3002<\/p>\n

Rust\u306e\u578b\u306e\u540d\u524d\u306f\u3044\u3061\u3044\u3061\u540d\u524d\u7a7a\u9593\u304c\u3064\u3044\u3066\u304f\u308b\u306e\u3067\u9577\u3044\u3057\u3001\u30b3\u30f3\u30c6\u30ca\u578b\u3082\u3044\u3063\u3071\u3044\u4f7f\u3046\u3057\u3067\u3001pretty print\u306a\u3057\u3067\u5024\u3092\u7406\u89e3\u3059\u308b\u306e\u304c\u4e0d\u53ef\u80fd\u306a\u3053\u3068\u306f\u3088\u304f\u3042\u308b\u3002\u4f8b\u3048\u3070\u3001\u9577\u304f\u3082\u306a\u304f\u30cd\u30b9\u30c8\u3082\u6df1\u304f\u3082\u306a\u3044\u5834\u5408\u3067\u3082\u3001HashSet \u3068\u304b\u306f\u53b3\u3057\u3044\u8868\u793a\u3060\u3063\u305f\u6c17\u304c\u3059\u308b\u3002<\/p>\n

layout src<\/h3>\n

gdb \u306b\u3082TUI\u304c\u3042\u308a\u3001layout src \u3068\u3044\u3046\u30b3\u30de\u30f3\u30c9\u3067\u3082\u8d77\u52d5\u3067\u304d\u308b\u304c\u3001\u50d5\u306f C-x a \u3068\u3044\u3046\u30b7\u30e7\u30fc\u30c8\u30ab\u30c3\u30c8\u3067\u8d77\u52d5\u3057\u3066\u3044\u308b\u3002\u50d5\u306f gdb \u306f\u7d50\u69cb\u4f7f\u3044\u6163\u308c\u3066\u308b\u306e\u3067\u3001GDB\u306fGUI\u30d5\u30ed\u30f3\u30c8\u30a8\u30f3\u30c9\u306f\u7121\u3057\u3067\u4f7f\u3063\u3066\u3044\u308b\u3002<\/p>\n

CodeLLDB<\/h3>\n

\u305d\u3046\u3044\u3046\u308f\u3051\u3067\u50d5\u306fVSCode\u62e1\u5f35\u3068\u304b\u306f rr \u5411\u3051\u306b\u306f\u4f7f\u3063\u3066\u306a\u3044\u306e\u3060\u304c\u3001\u5148\u307b\u3069\u306eVSCode\u62e1\u5f35\u306f\u540d\u524d\u304cCode”LLDB”\u306a\u306e\u306b\u4f55\u6545\u304b (\u4e2d\u8eab\u306fGDB\u306e) rr \u30d0\u30c3\u30af\u30a8\u30f3\u30c9\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u308b\u3089\u3057\u3044\u3002\u30de\u30cb\u30e5\u30a2\u30eb\u306e Reverse Debugging \u3068\u3044\u3046\u3068\u3053\u308d\u306b\u4f7f\u3044\u65b9\u304c\u66f8\u3044\u3066\u3042\u308b\u3002GUI\u304c\u4f7f\u3044\u305f\u3044\u4eba\u306f\u3053\u308c\u3092\u8a66\u3057\u3066\u307f\u308b\u3068\u826f\u3055\u305d\u3046\u3002<\/p>\n

\u30b3\u30f3\u30c6\u30ca\u578b\u306e\u4e2d\u8eab\u306e\u53d6\u308a\u51fa\u3057<\/h3>\n

\u30c7\u30d0\u30c3\u30ac\u4e0a\u3060\u3068 unwrap() \u3068\u304b\u304c\u4f7f\u3048\u306a\u304f\u3066\u3001Some \u306e\u4e2d\u8eab\u306e\u53d6\u308a\u51fa\u3057\u65b9\u304c\u308f\u304b\u3089\u3093\u307f\u305f\u3044\u306a\u3053\u3068\u304c\u3042\u308b\u306e\u3060\u304c\u3001\u305d\u3046\u3044\u3046\u6642\u306f .0 \u3092\u4f7f\u3046\u3068\u52d5\u3044\u305f\u308a\u3059\u308b\u3002\u4ed6\u306e\u5834\u5408\u306f value \u3068\u304b ptr \u3068\u304b pointer \u306a\u306e\u3060\u304c\u3001\u3053\u308c\u306fpretty print\u3057\u3066\u3044\u308c\u3070\u308f\u304b\u308b\u3002<\/p>\n

\u6240\u611f<\/h2>\n

\u30b3\u30a2\u30c0\u30f3\u30d7 1 \u306e\u8abf\u67fb\u306a\u3069\u3067Rust\u306e\u30b3\u30fc\u30c9\u304c\u5168\u304f\u547c\u3073\u51fa\u305b\u306a\u3044\u72b6\u6cc1\u3067\u30c7\u30d0\u30c3\u30b0\u3092\u3059\u308b\u3053\u3068\u3082\u3042\u308b\u304c\u3001\u76f4\u524d\u3067\u8ff0\u3079\u305f .0 \u307f\u305f\u3044\u306a\u30ef\u30fc\u30af\u30a2\u30e9\u30a6\u30f3\u30c9\u304c\u5fc5\u8981\u306a\u3068\u3053\u308d\u304c\u672c\u5f53\u306b\u9762\u5012\u3067\u3042\u308b\u3002<\/p>\n

\u306a\u306e\u3067\u3001\u6b63\u76f4\u306a\u3068\u3053\u308d\u50d5\u3082 “Debugging Rust programs is a nightmare” \u3060\u3068\u601d\u3063\u3066\u3044\u308b\u3002\u3053\u3053\u306b\u66f8\u3044\u3066\u306a\u3044Rust\u7279\u6709\u306e\u30c7\u30d0\u30c3\u30b0\u30c6\u30af\u30cb\u30c3\u30af\u304c\u3042\u308c\u3070\u30b3\u30e1\u30f3\u30c8\u306a\u3069\u3044\u305f\u3060\u3051\u308b\u3068\u5b09\u3057\u3044\u3002<\/p>\n

\u300cRust\u306fSEGV\u3057\u306a\u3044\u306e\u306b\u30b3\u30a2\u30c0\u30f3\u30d7?\u300d\u3068\u601d\u3046\u4eba\u3082\u3044\u308b\u3060\u308d\u3046\u3002\u50d5\u306fRust\u66f8\u3044\u3066\u308b\u306e\u306b\u6bce\u65e5SEGV\u3057\u3066\u308b\u2026\u3068\u3044\u3046\u306e\u306f\u7f6e\u3044\u3066\u304a\u304f\u306b\u3057\u3066\u3082\u3001\u4f8b\u3048\u3070\u672c\u756a\u74b0\u5883\u3067\u3054\u304f\u305f\u307e\u306bassert!\u3084panic!\u3067\u30af\u30e9\u30c3\u30b7\u30e5\u3059\u308b\u307f\u305f\u3044\u306a\u30b1\u30fc\u30b9\u3067\u306f\u3001\u30ed\u30b0\u3092\u4ed5\u8fbc\u307f\u76f4\u3057\u3066\u518d\u73fe\u3092\u5f85\u3064\u3088\u308a\u30b3\u30a2\u30c0\u30f3\u30d7\u3092\u898b\u308b\u65b9\u304c\u697d\u3060\u3068\u601d\u3046\u3002 \u21a9<\/p>\n<\/section>\n","protected":false},"excerpt":{"rendered":"

\u3053\u306e\u8a18\u4e8b\u306f Rust Advent Calendar 2023 \u30b7\u30ea\u30fc\u30ba2 \u306e1\u65e5\u76ee\u306e\u8a18\u4e8b\u3067\u3042\u308b\u3002 Rust\u306f […]<\/p>\n","protected":false},"author":12,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-44928","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"\n- Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/zh\/blog\/44928-2\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:description\" content=\"\u3053\u306e\u8a18\u4e8b\u306f Rust Advent Calendar 2023 \u30b7\u30ea\u30fc\u30ba2 \u306e1\u65e5\u76ee\u306e\u8a18\u4e8b\u3067\u3042\u308b\u3002 Rust\u306f […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/44928-2\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - 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