{"id":3424,"date":"2018-04-05T11:27:44","date_gmt":"2018-04-05T02:27:44","guid":{"rendered":"http:\/\/www.ois-yokohama.co.jp\/oisblog\/?p=3424"},"modified":"2022-11-21T14:07:21","modified_gmt":"2022-11-21T05:07:21","slug":"gdb%e3%82%92%e4%bd%bf%e7%94%a8%e3%81%97%e3%81%9f%e3%83%87%e3%83%90%e3%83%83%e3%82%b0%e6%89%8b%e6%b3%95%e5%bf%9c%e7%94%a8%e7%b7%a8","status":"publish","type":"post","link":"https:\/\/www.ois-yokohama.co.jp\/oisblog2018\/archives\/3424","title":{"rendered":"GDB\u3092\u4f7f\u7528\u3057\u305f\u30c7\u30d0\u30c3\u30b0\u624b\u6cd5(\u5fdc\u7528\u7de8)"},"content":{"rendered":"
\"Excel\u306e\u5b9a\u578b\u51e6\u7406\u306f\u30a2\u30c9\u30a4\u30f3\u5316\u3057\u3066\u307f\u3088\u3046\"<\/div>\n

\u524d\u56de\u306fGDB\u306e\u57fa\u672c\u7684\u306a\u4f7f\u3044\u65b9<\/a>\u306b\u3064\u3044\u3066\u7d39\u4ecb\u3055\u305b\u3066\u9802\u304d\u307e\u3057\u305f\u3002
\n\u4eca\u56de\u306f\u3055\u3089\u306b\u6398\u308a\u4e0b\u3052\u305fGDB\u306e\u4f7f\u3044\u65b9<\/strong>\u306b\u3064\u3044\u3066\u3054\u7d39\u4ecb\u3057\u305f\u3044\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n

\u30de\u30eb\u30c1\u30b9\u30ec\u30c3\u30c9\u306e\u30c7\u30d0\u30c3\u30b0<\/h2>\n

GDB\u306f\u30b9\u30ec\u30c3\u30c9\u306e\u60c5\u5831\u53d6\u5f97\u3084\u30c7\u30d0\u30c3\u30b0\u3059\u308b\u30ab\u30ec\u30f3\u30c8\u30fb\u30b9\u30ec\u30c3\u30c9\u306e\u5207\u308a\u66ff\u3048\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u307e\u3059\u3002\u4f8b\u3048\u3070\u3001\u30de\u30eb\u30c1\u30b9\u30ec\u30c3\u30c9\u74b0\u5883\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u5b9f\u884c\u4e2d\u306b\u7121\u9650\u30eb\u30fc\u30d7\u306b\u9665\u3063\u305f\u3068\u3057\u3066\u30a4\u30f3\u30bf\u30e9\u30d7\u30c8(C-c)\u3067\u505c\u6b62\u3057\u3066\u3082\u3001\u539f\u56e0\u3068\u306a\u308b\u51e6\u7406\u3067\u505c\u6b62\u3059\u308b\u3068\u306f\u9650\u308a\u307e\u305b\u3093\u3002\u30b9\u30ec\u30c3\u30c9\u306e\u60c5\u5831\u304c\u53c2\u7167\u3067\u304d\u308c\u3070\u539f\u56e0\u3068\u306a\u308b\u51e6\u7406\u304c\u3069\u306e\u30b9\u30ec\u30c3\u30c9\u3067\u5b9f\u884c\u3055\u308c\u3066\u3044\u308b\u306e\u304b\u77e5\u308a\u5f97\u308b\u304d\u3063\u304b\u3051\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n

\u30b9\u30ec\u30c3\u30c9\u306e\u60c5\u5831\u3092\u53d6\u5f97\u3059\u308b<\/h3>\n

\u30b9\u30ec\u30c3\u30c9\u306e\u60c5\u5831\u3092\u53d6\u5f97\u3059\u308b\u306b\u306f\u4ee5\u4e0b\u306e\u30b3\u30de\u30f3\u30c9\u3092\u5b9f\u884c\u3057\u307e\u3059\u3002<\/p>\n

(gdb) info threads<\/pre>\n
\u30b9\u30ec\u30c3\u30c9\u60c5\u5831\u306e\u51fa\u529b\u7d50\u679c\u306e\u4f8b\u3002<\/p>\n
* 2 Thread 0xb7f33b90 (LWP 6388)  threadSubMain (arg=0x0) at sample.c:98\r\n  1 Thread 0xb7f346c0 (LWP 6387)  0x00110402 in __kernel_vsyscall ()<\/pre>\n
\u300c*\u300d\u304c\u3042\u308b\u30b9\u30ec\u30c3\u30c9\u304c\u30c7\u30d0\u30c3\u30b0\u5bfe\u8c61\u306e\u30b9\u30ec\u30c3\u30c9(\u30ab\u30ec\u30f3\u30c8\u30fb\u30b9\u30ec\u30c3\u30c9)<\/p>\n
\u30b9\u30ec\u30c3\u30c9\u3092\u5207\u308a\u66ff\u3048\u308b<\/h3>\n
\u30ab\u30ec\u30f3\u30c8\u30fb\u30b9\u30ec\u30c3\u30c9\u3092\u5207\u308a\u66ff\u3048\u308b\u306b\u306fthread\u30b3\u30de\u30f3\u30c9\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002\u30b9\u30ec\u30c3\u30c9\u756a\u53f7\u3092\u6307\u5b9a\u3059\u308b\u3053\u3068\u306b\u3088\u308a\u30ab\u30ec\u30f3\u30c8\u30fb\u30b9\u30ec\u30c3\u30c9\u304c\u5207\u308a\u66ff\u308f\u308a\u307e\u3059\u3002<\/p>\n
(gdb) thread threadno<\/pre>\n
\u30b9\u30ec\u30c3\u30c9\u756a\u53f7threadno\u3092\u5272\u308a\u5f53\u3066\u3089\u308c\u305f\u30b9\u30ec\u30c3\u30c9\u3092\u30ab\u30ec\u30f3\u30c8\u30fb\u30b9\u30ec\u30c3\u30c9\u3068\u3057\u307e\u3059\u3002 \u3053\u306e\u30b3\u30de\u30f3\u30c9\u306e\u5f15\u6570threadno\u306f\u3001\u2019info threads\u2019\u30b3\u30de\u30f3\u30c9\u306e\u51fa\u529b\u306e\u6700\u521d\u306e\u30d5\u30a3\u30fc\u30eb\u30c9\u306b\u8868\u793a\u3055\u308c\u308b\u3001GDB\u5185\u90e8\u306e\u30b9\u30ec\u30c3\u30c9\u756a\u53f7\u3067\u3059\u3002<\/p>\n
\u7279\u5b9a\u306e\u30b9\u30ec\u30c3\u30c9\u306b\u30d6\u30ec\u30a4\u30af\u30dd\u30a4\u30f3\u30c8\u3092\u8a2d\u5b9a\u3059\u308b<\/h3>\n
\uff42\uff52\uff45\uff41\uff4b\u30b3\u30de\u30f3\u30c9\u306f\u505c\u6b62\u3055\u305b\u305f\u3044\u30b9\u30ec\u30c3\u30c9\u756a\u53f7\u3092\u6307\u5b9a\u3059\u308b\u3053\u3068\u304c\u53ef\u80fd\u3067\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u30d6\u30ec\u30a4\u30af\u30dd\u30a4\u30f3\u30c8\u4f4d\u7f6e\u3067\u7279\u5b9a\u306e\u30b9\u30ec\u30c3\u30c9\u306e\u5834\u5408\u306e\u307f\u505c\u6b62\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n
(gdb) break linespec thread threadno<\/pre>\n
linespec\u306f\u30bd\u30fc\u30b9\u884c\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002 \u8a18\u8ff0\u65b9\u6cd5\u306f\u3044\u304f\u3064\u304b\u3042\u308a\u307e\u3059\u304c\u3001 \u3069\u306e\u65b9\u6cd5\u3092\u4f7f\u3063\u3066\u3082\u7d50\u679c\u7684\u306b\u306f\u30bd\u30fc\u30b9\u884c\u3092\u6307\u5b9a\u3059\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002 break\u30b3\u30de\u30f3\u30c9\u306b\u4fee\u98fe\u5b50\u2019thread threadno’\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001 \u3042\u308b\u7279\u5b9a\u306e\u30b9\u30ec\u30c3\u30c9\u304c\u3053\u306e\u30d6\u30ec\u30a4\u30af\u30dd\u30a4\u30f3\u30c8\u306b\u5230\u9054\u3057\u305f\u3068\u304d\u3060\u3051GDB\u304c\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u505c\u6b62\u3059\u308b\u3088\u3046\u6307\u5b9a\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002 \u3053\u3053\u3067threadno\u306f\u3001GDB\u306b\u3088\u3063\u3066\u5272\u308a\u5f53\u3066\u3089\u308c\u308b\u30b9\u30ec\u30c3\u30c9\u8b58\u5225\u756a\u53f7\u3067\u3001\u2019info threads’\u30b3\u30de\u30f3\u30c9\u306b\u3088\u308b\u51fa\u529b\u306e\u6700\u521d\u306e\u6b04\u306b\u8868\u793a\u3055\u308c\u308b\u3082\u306e\u3067\u3059\u3002<\/p>\n
GDB\u3092\u4f7f\u7528\u3057\u305f\u6709\u7528\u306a\u30c7\u30d0\u30c3\u30b0\u624b\u6cd5<\/h2>\n
\u7279\u5b9a\u306e\u5024\u306e\u6642\u3060\u3051\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u505c\u6b62\u3057\u305f\u3044<\/h3>\n
\u7e70\u308a\u8fd4\u3057\u4f7f\u7528\u3055\u308c\u308b\u30ed\u30b8\u30c3\u30af\u5185\u3067\u30d6\u30ec\u30a4\u30af\u30dd\u30a4\u30f3\u30c8\u3092\u8a2d\u5b9a\u3057\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u5834\u5408\u3001\u76ee\u7684\u306e\u5024\u304c\u4f7f\u7528\u3055\u308c\u308b\u4ee5\u5916\u306b\u305d\u306e\u30d6\u30ec\u30a4\u30af\u30dd\u30a4\u30f3\u30c8\u3067\u505c\u6b62\u3057\u3066\u3057\u307e\u3046\u306e\u306f\u52b9\u7387\u304c\u975e\u5e38\u306b\u60aa\u3044\u3002\u305d\u3053\u3067\u3001\u30d6\u30ec\u30a4\u30af\u30dd\u30a4\u30f3\u30c8\u306b\u505c\u6b62\u6761\u4ef6\u3092\u4ed8\u52a0\u3059\u308b\u3053\u3068\u306b\u3088\u308a\u52b9\u7387\u5316\u3092\u56f3\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002<\/p>\n
\u4f8b\u3048\u3070\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u95a2\u6570\u3067\u300c3\u300d\u304c\u6307\u5b9a\u3055\u308c\u305f\u5834\u5408\u306e\u307f\u52d5\u4f5c\u304c\u4e0d\u6b63\u3068\u306a\u308b\u305f\u3081\u3001\u3053\u306e\u95a2\u6570\u306b\u30d1\u30e9\u30e1\u30fc\u30bf\u304c3\u306e\u5834\u5408\u306e\u52d5\u4f5c\u3092\u30c7\u30d0\u30c3\u30b0\u3057\u305f\u3044\u3068\u3059\u308b\u3002
\n\"gdb-01\"
\n\u30d6\u30ec\u30a4\u30af\u30dd\u30a4\u30f3\u30c8\u3092\u8a2d\u5b9a\u3059\u308b\u969b\u306b\u3001\u4ee5\u4e0b\u306e\u30b3\u30de\u30f3\u30c9\u6307\u5b9a\u306b\u3088\u308a\u505c\u6b62\u6761\u4ef6\u3092\u4ed8\u52a0\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002<\/p>\n
(gdb) break ... if cond<\/pre>\n
cond\u3067\u6307\u5b9a\u3055\u308c\u308b\u6761\u4ef6\u5f0f\u4ed8\u304d\u3067\u30d6\u30ec\u30a4\u30af\u30dd\u30a4\u30f3\u30c8\u3092\u8a2d\u5b9a\u3057\u307e\u3059\u3002\u305d\u306e\u30d6\u30ec\u30a4\u30af\u30dd\u30a4\u30f3\u30c8\u306b\u9054\u3059\u308b\u3068\u3001 \u5fc5\u305a\u6761\u4ef6\u5f0fcond\u304c\u8a55\u4fa1\u3055\u308c\u307e\u3059\u3002\u8a55\u4fa1\u7d50\u679c\u304c\u30bc\u30ed\u3067\u306a\u3044\u5834\u5408\u3001\u3059\u306a\u308f\u3061\u3001\u8a55\u4fa1\u7d50\u679c\u304c\u771f\u3067\u3042\u308b\u5834\u5408\u306e\u307f\u30e6\u30fc\u30b6\u30fb\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u505c\u6b62\u3057\u307e\u3059\u3002<\/p>\n
breakpointSample1\u95a2\u6570\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u304c\u300c3\u300d\u306e\u5834\u5408\u306e\u307f\u505c\u6b62\u3059\u308b\u30d6\u30ec\u30a4\u30af\u30dd\u30a4\u30f3\u30c8\u3092\u8a2d\u5b9a\u3059\u308b\u306b\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306bbreak\u30b3\u30de\u30f3\u30c9\u3092\u6307\u5b9a\u3059\u308b\u3002<\/p>\n
(gdb) break breakpointSample1 if key==3<\/pre>\n
\u30d6\u30ec\u30a4\u30af\u30dd\u30a4\u30f3\u30c8\u3092\u78ba\u8a8d\u3059\u308b\u3068\u4ee5\u4e0b\u306e\u69d8\u306b\u8868\u793a\u3055\u308c\u308b\u3002<\/p>\n
Num     Type           Disp Enb Address    What\r\n1       breakpoint     keep y   0x080486d4 in breakpointSample1 at sample.c:159\r\n        stop only if key==3\r\n<\/pre>\n
\u9006\u306b\u300c3\u300d\u4ee5\u5916\u306e\u5834\u5408\u306b\u505c\u6b62\u3057\u305f\u3044\u5834\u5408\u306f\u6761\u4ef6\u5f0f\u306b\u300c!\u300d\u3092\u6307\u5b9a\u3059\u308b<\/p>\n
(gdb) break breakpointSample1 if key!=3<\/pre>\n
 <\/p>\n
\u5909\u6570\u306e\u5024\u304c\u5909\u5316\u3057\u305f\u3068\u304d\u306b\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u505c\u6b62\u3057\u305f\u3044<\/h3>\n
\u3042\u308b\u5909\u6570\u306e\u5024\u306b\u3088\u308a\u4e0d\u5177\u5408\u304c\u767a\u751f\u3059\u308b\u5834\u5408\u3001\u3069\u306e\u51e6\u7406\u304c\u305d\u306e\u5909\u6570\u3092\u554f\u984c\u306e\u5024\u306b\u8a2d\u5b9a\u3057\u3066\u3044\u308b\u304b\u8abf\u3079\u305f\u3044\u5834\u5408\u304c\u3042\u308b\u3002\u5bfe\u8c61\u306e\u5909\u6570\u304c\u8907\u6570\u306e\u51e6\u7406\u304b\u3089\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u308b\u3088\u3046\u306a\u30b1\u30fc\u30b9\u3067\u306f\u3001\u305d\u306e\u5168\u3066\u306b\u30d6\u30ec\u30a4\u30af\u30dd\u30a4\u30f3\u30c8\u3092\u8a2d\u5b9a\u3057\u3066\u5730\u9053\u306b\u8abf\u3079\u308b\u65b9\u6cd5\u3082\u3042\u308b\u304c\u3001\u5024\u306e\u5909\u5316\u3092\u691c\u77e5\u3057\u3066\u30d0\u30c3\u30af\u30c8\u30ec\u30fc\u30b9\u3092\u53d6\u5f97\u3057\u3001\u3069\u306e\u51e6\u7406\u304c\u8a2d\u5b9a\u3057\u3066\u3044\u308b\u306e\u304b\u3092\u8abf\u3079\u305f\u65b9\u304c\u65e9\u3044\u3053\u3068\u3082\u3042\u308a\u307e\u3059\u3002
\n\u5024\u306e\u5909\u5316\u3092\u691c\u77e5\u3059\u308b\u306b\u306f\u30a6\u30a9\u30c3\u30c1\u30dd\u30a4\u30f3\u30c8\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002
\n\u30a6\u30a9\u30c3\u30c1\u30dd\u30a4\u30f3\u30c8\u306f\u4ee5\u4e0b\u306e\u69d8\u306b\u6307\u5b9a\u3057\u307e\u3059\u3002<\/p>\n
(gdb) watch expr<\/pre>\n
expr\u3067\u6307\u5b9a\u3055\u308c\u308b\u5f0f\u306b\u5bfe\u3057\u3066\u30a6\u30a9\u30c3\u30c1\u30dd\u30a4\u30f3\u30c8\u3092\u8a2d\u5b9a\u3057\u307e\u3059\u3002
\n\u30a6\u30a9\u30c3\u30c1\u30dd\u30a4\u30f3\u30c8\u306f\u30aa\u30fc\u30c8\u5909\u6570\u306a\u3069\u4fdd\u8a3c\u3055\u308c\u306a\u3044\u30e1\u30e2\u30ea\u9818\u57df\u306f\u6307\u5b9a\u3067\u304d\u307e\u305b\u3093\u3002\u30b0\u30ed\u30fc\u30d0\u30eb\u5909\u6570\u306a\u3069\u306e\u9759\u7684\u306b\u30a2\u30c9\u30ec\u30b9\u304c\u6c7a\u307e\u3063\u3066\u3044\u308b\u5909\u6570\u3067\u6307\u5b9a\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002
\n\u30a6\u30a9\u30c3\u30c1\u30dd\u30a4\u30f3\u30c8\u306f\u300cwatch\u300d\u30b3\u30de\u30f3\u30c9\u5b9f\u884c\u6642\u306b\u505c\u6b62\u6761\u4ef6\u3092\u6307\u5b9a\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u305b\u3093\u3002\u30a6\u30a9\u30c3\u30c1\u30dd\u30a4\u30f3\u30c8\u8a2d\u5b9a\u5f8c\u306b\u4ee5\u4e0b\u306e\u30b3\u30de\u30f3\u30c9\u3067\u505c\u6b62\u6761\u4ef6\u3092\u4ed8\u3051\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002(\u3053\u308c\u306f\u30d6\u30ec\u30a4\u30af\u30dd\u30a4\u30f3\u30c8\u3067\u3082\u540c\u69d8\u3067\u3059)<\/p>\n
(gdb) condition bnum expression<\/pre>\n
bnum\u3067\u6307\u5b9a\u3055\u308c\u308b\u756a\u53f7\u306e\u30d6\u30ec\u30a4\u30af\u30dd\u30a4\u30f3\u30c8\u3001 \u30a6\u30a9\u30c3\u30c1\u30dd\u30a4\u30f3\u30c8\u3001 \u30ad\u30e3\u30c3\u30c1\u30dd\u30a4\u30f3\u30c8\u306e\u6210\u7acb\u6761\u4ef6\u3068\u3057\u3066\u3001 expression\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002
\n\u307e\u305f\u3001\u30dd\u30a4\u30f3\u30c8\u306e\u901a\u904e\u30ab\u30a6\u30f3\u30c8\u3092\u6761\u4ef6\u306b\u505c\u6b62\u3059\u308b\u3053\u3068\u3082\u53ef\u80fd\u3067\u3059\u3002<\/p>\n
(gdb) ignore bnum count<\/pre>\n
bnum\u3067\u6307\u5b9a\u3055\u308c\u308b\u756a\u53f7\u306e\u30d6\u30ec\u30a4\u30af\u30dd\u30a4\u30f3\u30c8\u306e\u901a\u904e\u30ab\u30a6\u30f3\u30c8\u3092count\u3067\u6307\u5b9a\u3055\u308c\u308b\u5024\u306b\u8a2d\u5b9a\u3057\u307e\u3059\u3002<\/p>\n
\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u505c\u6b62\u3059\u308b\u3053\u3068\u306a\u304f\u4e00\u6642\u7684\u306b\u5024\u3092\u5909\u66f4\u3057\u3066\u5b9f\u884c\u3057\u305f\u3044<\/h3>\n
\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u5b9f\u884c\u6642\u306b\u901a\u5e38\u306e\u52d5\u4f5c\u3067\u306f\u518d\u73fe\u3059\u308b\u306e\u304c\u96e3\u3057\u3044\u51e6\u7406\u304c\u3042\u3063\u305f\u3068\u3057\u307e\u3059\u3002\u305d\u306e\u6642\u306b\u4e00\u6642\u7684\u306b\u5024\u3092\u5909\u66f4\u3059\u308b\u3053\u3068\u304c\u51fa\u6765\u308c\u3070\u5bb9\u6613\u306b\u518d\u73fe\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3068\u601d\u3044\u307e\u3059\u3002
\n\u30d6\u30ec\u30a4\u30af\u30dd\u30a4\u30f3\u30c8\u3067\u306e\u505c\u6b62\u6642\u306b\u30a2\u30af\u30b7\u30e7\u30f3\u3092\u8a2d\u5b9a\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3053\u306e\u6a5f\u80fd\u3092\u5229\u7528\u3057\u3066\u4e00\u6642\u7684\u306b\u5024\u3092\u5909\u66f4\u3059\u308b\u3053\u3068\u304c\u53ef\u80fd\u3067\u3059\u3002
\n\u30a2\u30af\u30b7\u30e7\u30f3\u3092\u8a2d\u5b9a\u3059\u308b\u306b\u306fcommand\u30b3\u30de\u30f3\u30c9\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<\/p>\n
(gdb) commands [bnum]\r\n... command-list ...\r\nend\r\n<\/pre>\n
bnum\u3067\u6307\u5b9a\u3055\u308c\u308b\u756a\u53f7\u3092\u6301\u3064\u30d6\u30ec\u30a4\u30af\u30dd\u30a4\u30f3\u30c8\u306b\u5bfe\u3057\u3066\u4e00\u9023\u306e\u30b3\u30de\u30f3\u30c9\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002 \u30b3\u30de\u30f3\u30c9\u81ea\u4f53\u306f\u6b21\u306e\u884c\u4ee5\u4e0b\u306b\u8a18\u8ff0\u3057\u307e\u3059\u3002\u30b3\u30de\u30f3\u30c9\u306e\u8a18\u8ff0\u3092\u7d42\u4e86\u3059\u308b\u306b\u306f\u3001end\u3060\u3051\u304b\u3089\u6210\u308b1\u884c\u3092\u8a18\u8ff0\u3057\u307e\u3059\u3002<\/p>\n
\u30d1\u30e9\u30e1\u30fc\u30bf\u300c\uff56\uff41\uff4c\uff55\uff45\u300d\u3092\u3082\u3064\u95a2\u6570functionA\u304c\u3042\u3063\u305f\u3068\u3057\u3066\u3001functionA\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u300cvalue\u300d\u304c4\u306e\u5834\u5408\u306b0\u306b\u66f8\u304d\u63db\u3048\u3066\u51e6\u7406\u3092\u7d99\u7d9a\u3059\u308b\u30a2\u30af\u30b7\u30e7\u30f3\u3092command\u30b3\u30de\u30f3\u30c9\u3067\u8a18\u8f09\u3059\u308b\u3068\u4ee5\u4e0b\u306e\u69d8\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n
(gdb) break functionA if value==4\r\n(gdb) commands 1\r\nsilent\r\nset value = 0\r\ncont\r\nend\r\n<\/pre>\n
\u30b3\u30de\u30f3\u30c9\u30ea\u30b9\u30c8\u306e\u6700\u521d\u306b\u300csilent\u300d\u3092\u8a18\u8ff0\u3057\u3066\u3044\u308b\u3068\u901a\u5e38\u306e\u30d6\u30ec\u30a4\u30af\u30dd\u30a4\u30f3\u30c8\u306e\u505c\u6b62\u6642\u306b\u51fa\u529b\u3059\u308b\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u8868\u793a\u3055\u305b\u306a\u304f\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u30d6\u30ec\u30a4\u30af\u30dd\u30a4\u30f3\u30c8\u306b\u4efb\u610f\u306e\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u8868\u793a\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002
\n\u30b3\u30de\u30f3\u30c9\u30ea\u30b9\u30c8\u306e\u6700\u5f8c\u306e\u300cend\u300d\u524d\u306b\u300ccout\u300d\u3092\u8a18\u8ff0\u3059\u308b\u3053\u3068\u3067\u3001\u30d6\u30ec\u30a4\u30af\u30dd\u30a4\u30f3\u30c8\u306b\u3088\u308b\u505c\u6b62\u51e6\u7406\u3092\u7d99\u7d9a\u3057\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30e6\u30fc\u30b6\u306f\u51e6\u7406\u304c\u505c\u6b62\u3057\u305f\u3053\u3068\u3092\u610f\u8b58\u3059\u308b\u3053\u3068\u306a\u304f\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u6539\u5909\u3084\u51fa\u529b\u3092\u884c\u3046\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n
\u505c\u6b62\u6642\u306b\u6bce\u56de\u6c7a\u307e\u3063\u305f\u5909\u6570\u3092\u8868\u793a\u3055\u305b\u305f\u3044<\/h3>\n
\u30d6\u30ec\u30a4\u30af\u30dd\u30a4\u30f3\u30c8\u306b\u3066\u505c\u6b62\u3059\u308b\u5ea6\u306b\u7279\u5b9a\u306e\u5909\u6570\u306e\u5024\u3092\u53c2\u7167\u3057\u305f\u3044\u5834\u5408\u3001print\u30b3\u30de\u30f3\u30c9\u3092\u4f7f\u7528\u3057\u3066\u6bce\u56de\u78ba\u8a8d\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u308b\u304c\u3001\u505c\u6b62\u3057\u305f\u6642\u306b\u81ea\u52d5\u3067\u8868\u793a\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u308b\u3002
\n\u81ea\u52d5\u3067\u8868\u793a\u3055\u305b\u308b\u306b\u306fdisplay\u3092\u4f7f\u7528\u3059\u308b\u3002<\/p>\n
(gdb) display exp<\/pre>\n
\u30d7\u30ed\u30b0\u30e9\u30e0\u304c\u505c\u6b62\u3057\u305f\u6642\u306b\u8868\u793a\u3059\u308b\u30e1\u30c3\u30bb\u30fc\u30b8\u306b\u3066\u3001\u5f0f\u300cexp\u300d\u3092\u8868\u793a\u3057\u307e\u3059\u3002<\/p>\n
display\u30b3\u30de\u30f3\u30c9\u3067\u5f0f\u306b\u5909\u6570\u300csec\u300d\u3068\u300cmin\u300d\u3092\u8a2d\u5b9a\u3057\u305f\u6642\u306e\u51fa\u529b\u4f8b<\/p>\n
Breakpoint 5, functionC () at sample.c:83\r\n2: sec = 35\r\n1: min = 1\r\n<\/pre>\n
\u8a2d\u5b9a\u3057\u305fdisplay\u30b3\u30de\u30f3\u30c9\u306f\u4ee5\u4e0b\u306e\u30b3\u30de\u30f3\u30c9\u3067\u78ba\u8a8d\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n
(gdb) info display<\/pre>\n
\u4e0a\u8a18\u30b3\u30de\u30f3\u30c9\u306e\u8868\u793a\u4f8b<\/p>\n
Auto-display expressions now in effect:\r\nNum Enb Expression\r\n2:   y  sec\r\n1:   y  min\r\n<\/pre>\n
 <\/p>\n
EMACS\u3067GDB\u3092\u5b9f\u884c\u3059\u308b\u65b9\u6cd5<\/h2>\n
GDB\u3092Emacs\u306e\u30b5\u30d6\u30d7\u30ed\u30bb\u30b9\u3068\u3057\u3066\u8d77\u52d5\u3057\u3001 \u65b0\u3057\u304f\u4f5c\u6210\u3057\u305fEmacs\u30d0\u30c3\u30d5\u30a1\u3092\u901a\u3058\u3066\u5165\u51fa\u529b\u3092\u884c\u3044\u307e\u3059\u3002Emacs\u306e\u30b9\u30af\u30ea\u30fc\u30f3\u306f\u5206\u5272\u3055\u308c\u3001\u30bd\u30fc\u30b9\u3092\u8868\u793a\u3059\u308b\u30d0\u30c3\u30d5\u30a1\u3068GDB\u306e\u5165\u51fa\u529b\u3092\u884c\u3046\u30d0\u30c3\u30d5\u30a1\u3068\u5225\u3005\u306b\u8868\u793a\u3059\u308b\u3053\u3068\u304c\u51fa\u6765\u307e\u3059\u3002<\/p>\n
\u624b\u9806<\/h3>\n
1.\u00a0Emacs\u306e\u8d77\u52d5
\n$ emacs
\n2.\u00a0Menu bar\u8868\u793a
\nF10\u30ad\u30fc\u62bc\u4e0b
\n\"gdb-02\"
\n3.\u00a0Menu bar\u2192Tools
\n\u4e0a\u4e0b\u30ad\u30fc\u3067\u300cTools\u300d\u3092\u9078\u629e\u3057Enter\u30ad\u30fc\u62bc\u4e0b
\n(\u307e\u305f\u306f)t\u30ad\u30fc\u62bc\u4e0b
\n\"gdb-03\"
\n4.\u00a0Menu bar\u2192Tools\u2192GDB
\n\u4e0a\u4e0b\u30ad\u30fc\u3067\u300cDebugger (GUD)\u300d\u3092\u9078\u629e\u3057Enter\u30ad\u30fc\u62bc\u4e0b
\n(\u307e\u305f\u306f)d\u30ad\u30fc\u62bc\u4e0b
\n\"gdb-04\"M-x gdb\u30672.\u304b\u30894.\u307e\u3067\u306e\u624b\u9806\u304c\u7701\u7565\u51fa\u6765\u307e\u3059\u3002
\n5.\u00a0GDB\u8d77\u52d5
\nEnter\u30ad\u30fc\u62bc\u4e0b
\n\"gdb-05a\"
\n6.\u00a0\u30d7\u30ed\u30b0\u30e9\u30e0\u306b\u30a2\u30bf\u30c3\u30c1
\n\u30d7\u30ed\u30bb\u30b9\u3092\u8868\u793a\u3057attach\u30b3\u30de\u30f3\u30c9\u3067\u30a2\u30bf\u30c3\u30c1\u3059\u308b<\/p>\n
(gdb) shell ps -a\r\n  PID TTY          TIME CMD\r\n 3623 pts\/1    00:00:00 su\r\n 3624 pts\/1    00:00:00 bash\r\n14764 pts\/3    00:11:22 program.exe\r\n15800 pts\/2    00:00:00 emacs-x\r\n15805 pts\/4    00:00:00 ps\r\n(gdb) at 14764\r\n<\/pre>\n
\u30b7\u30f3\u30dc\u30eb\u306e\u30ed\u30fc\u30c9\u304c\u5b8c\u4e86\u3057\u305f\u3089continue<\/p>\n
(gdb) c<\/pre>\n
7.\u00a0\u30c7\u30d0\u30c3\u30b0\u3092\u7d42\u4e86\u3059\u308b
\n\u30c7\u30d0\u30c3\u30b0\u304c\u5b9f\u884c\u4e2d\u306e\u5834\u5408\u306f\u4e2d\u65ad\u3059\u308b
\n\u300cC-c\u300d\u300cC-c\u300d
\n\u30a2\u30bf\u30c3\u30c1\u3092\u89e3\u9664\u3059\u308b<\/p>\n
(gdb) q\r\nThe program is running.  Quit anyway (and detach it)? (y or n) y\r\n<\/pre>\n
emacs\u3092\u7d42\u4e86\u3059\u308b
\n\u300cC-x\u300d\u300cC-c\u300d<\/p>\n
\u5fdc\u7528\u7de8\u306e\u307e\u3068\u3081<\/h2>\n
GDB\u306b\u306f\u30af\u30ed\u30b9\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u306e\u30ea\u30e2\u30fc\u30c8\u30c7\u30d0\u30c3\u30b0\u3084GDB\u30c7\u30d0\u30c3\u30ac\u306e\u74b0\u5883\u8a2d\u5b9a\u3068\u3044\u3063\u305f\u3053\u3068\u304c\u3067\u304d\u3001\u3053\u3053\u3067\u8a18\u8f09\u3057\u305f\u5185\u5bb9\u4ee5\u5916\u306b\u3082\u305f\u304f\u3055\u3093\u306e\u4e8b\u304c\u3067\u304d\u308b\u30c7\u30d0\u30c3\u30ac\u3067\u3059\u3002\u5fdc\u7528\u7de8\u306f\u3069\u3061\u3089\u304b\u3068\u3044\u3046\u3068\u4e2d\u7d1a\u8005\u5411\u3051\u306e\u5185\u5bb9\u3068\u306a\u3063\u3066\u304a\u308a\u3001GDB\u3092\u4f7f\u3063\u305f\u30c7\u30d0\u30c3\u30b0\u3067\u306a\u304f\u3066\u306f\u306a\u3089\u306a\u3044\u3068\u601d\u3046\u5185\u5bb9\u3092\u307e\u3068\u3081\u3066\u7d39\u4ecb\u3055\u305b\u3066\u9802\u304d\u307e\u3057\u305f\u3002<\/p>\n
 <\/p>\n
\u3010GDB\u3092\u4f7f\u7528\u3057\u305f\u30c7\u30d0\u30c3\u30b0\u624b\u6cd5(\u57fa\u672c\u7de8)<\/span><\/a>\u3011<\/p>\n
 <\/p>\n
\n
\u25c6WEB\u4f1a\u8b70\uff0f\u30bb\u30df\u30ca\u30fc\u30b7\u30b9\u30c6\u30e0\u300eSzia\u300f
\nhttps:\/\/www.ois-yokohama.co.jp\/szia\/<\/a><\/p>\n
\u25c6\u30b5\u30fc\u30d0\u30b5\u30a4\u30c9\u3067\u52d5\u4f5c\u3059\u308b\u30df\u30c9\u30eb\u30a6\u30a7\u30a2\u300eReDois\u300f
\nhttps:\/\/www.ois-yokohama.co.jp\/redois\/wp_redois\/<\/a><\/p>\n
\"\u30aa\u30ea\u30a8\u30f3\u30bf\u30eb\u30a4\u30f3\u30d5\u30a9\u30fc\u30e1\u30a4\u30b7\u30e7\u30f3\u30b5\u30fc\u30d3\u30b9\uff08OIS\uff09\"<\/a><\/p>\n
 <\/p>\n","protected":false},"excerpt":{"rendered":"
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