{"id":15814,"date":"2024-11-18T14:33:20","date_gmt":"2024-11-18T06:33:20","guid":{"rendered":"https:\/\/fwq.ai\/blog\/15814\/"},"modified":"2024-11-18T14:33:20","modified_gmt":"2024-11-18T06:33:20","slug":"linux%e4%b8%8b%e4%bd%bf%e7%94%a8gdb%e8%b0%83%e8%af%95%e5%a4%9a%e7%ba%bf%e7%a8%8b%e7%a8%8b%e5%ba%8f%e7%9a%84%e5%b8%b8%e8%a7%81%e9%85%8d%e7%bd%ae%e6%96%b9%e6%b3%95","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/15814\/","title":{"rendered":"Linux\u4e0b\u4f7f\u7528GDB\u8c03\u8bd5\u591a\u7ebf\u7a0b\u7a0b\u5e8f\u7684\u5e38\u89c1\u914d\u7f6e\u65b9\u6cd5"},"content":{"rendered":"<p>linux\u4e0b\u4f7f\u7528gdb\u8c03\u8bd5\u591a\u7ebf\u7a0b\u7a0b\u5e8f\u7684\u5e38\u89c1\u914d\u7f6e\u65b9\u6cd5<\/p>\n<p>\u5f15\u8a00:<br \/>\u5728\u591a\u7ebf\u7a0b\u7f16\u7a0b\u4e2d\uff0c\u8c03\u8bd5\u662f\u4e00\u9879\u5fc5\u4e0d\u53ef\u5c11\u7684\u5de5\u4f5c\u3002GDB\u662f\u4e00\u4e2a\u529f\u80fd\u5f3a\u5927\u7684\u8c03\u8bd5\u5668\uff0c\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u5b9a\u4f4d\u548c\u89e3\u51b3\u591a\u7ebf\u7a0b\u7a0b\u5e8f\u4e2d\u51fa\u73b0\u7684\u9519\u8bef\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u5728linux\u4e0b\u4f7f\u7528gdb\u8c03\u8bd5\u591a\u7ebf\u7a0b\u7a0b\u5e8f\u7684\u5e38\u89c1\u914d\u7f6e\u65b9\u6cd5\uff0c\u5e76\u914d\u5907\u4ee3\u7801\u793a\u4f8b\uff0c\u5e0c\u671b\u80fd\u5e2e\u52a9\u8bfb\u8005\u66f4\u597d\u5730\u7406\u89e3\u548c\u8fd0\u7528GDB\u3002<\/p>\n<p>\u4e00\u3001\u5b89\u88c5GDB<br \/>\u9996\u5148\uff0c\u6211\u4eec\u9700\u8981\u5728Linux\u7cfb\u7edf\u4e2d\u5b89\u88c5GDB\u3002\u5728\u7ec8\u7aef\u4e2d\u8f93\u5165\u4ee5\u4e0b\u547d\u4ee4\uff0c\u5373\u53ef\u5b8c\u6210\u5b89\u88c5\uff1a<\/p>\n<pre>$ sudo apt-get install gdb<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p>\u4e8c\u3001\u7f16\u8bd1\u591a\u7ebf\u7a0b\u7a0b\u5e8f<br \/>\u5728\u8fdb\u884c\u591a\u7ebf\u7a0b\u7a0b\u5e8f\u7684\u8c03\u8bd5\u4e4b\u524d\uff0c\u6211\u4eec\u9996\u5148\u9700\u8981\u7f16\u5199\u548c\u7f16\u8bd1\u4e00\u4e2a\u7b80\u5355\u7684\u591a\u7ebf\u7a0b\u7a0b\u5e8f\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u793a\u4f8b\u7a0b\u5e8f\u7684\u4ee3\u7801\uff1a<\/p>\n<pre>#include &lt;stdio.h&gt;\n#include &lt;pthread.h&gt;\n\n#define NUM_THREADS 5\n\nvoid* thread_func(void* thread_id) {\n    long tid = (long)thread_id;\n    printf(\"Hello World! It's me, thread #%ld!\n\", tid);\n    pthread_exit(NULL);\n}\n\nint main() {\n    pthread_t threads[NUM_THREADS];\n    int rc;\n    long t;\n\n    for (t = 0; t &lt;p&gt;\u6211\u4eec\u5c06\u4e0a\u8ff0\u4ee3\u7801\u4fdd\u5b58\u81f3\u4e00\u4e2a\u540d\u4e3amultithread.c\u7684\u6587\u4ef6\u4e2d\uff0c\u5e76\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u8fdb\u884c\u7f16\u8bd1\uff1a&lt;\/p&gt;&lt;pre class=\"brush:php;toolbar:false;\"&gt;$ gcc -g -pthread -o multithread multithread.c<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p>\u5176\u4e2d\uff0c-g\u9009\u9879\u7528\u4e8e\u5728\u53ef\u6267\u884c\u6587\u4ef6\u4e2d\u52a0\u5165\u8c03\u8bd5\u4fe1\u606f\uff0c-pthread\u9009\u9879\u5219\u7528\u4e8e\u5f15\u5165\u591a\u7ebf\u7a0b\u5e93\u3002<\/p>\n<p>\u4e09\u3001\u542f\u52a8GDB\u8c03\u8bd5<br \/>\u5b8c\u6210\u7f16\u8bd1\u4e4b\u540e\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528GDB\u542f\u52a8\u8c03\u8bd5\u3002\u5728\u7ec8\u7aef\u4e2d\u8f93\u5165\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n<pre>$ gdb multithread<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p>\u56db\u3001\u914d\u7f6eGDB\u8c03\u8bd5\u9009\u9879<br \/>\u5728GDB\u4e2d\uff0c\u6709\u4e00\u4e9b\u8c03\u8bd5\u9009\u9879\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u66f4\u597d\u5730\u8c03\u8bd5\u591a\u7ebf\u7a0b\u7a0b\u5e8f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u8f93\u5165\u4ee5\u4e0b\u547d\u4ee4\u8fdb\u884c\u914d\u7f6e\uff1a<\/p>\n<ol>\n<li>\u8bbe\u7f6e\u663e\u793a\u7ebf\u7a0b\u53f7<br \/>\u5728GDB\u4e2d\u8f93\u5165\u4ee5\u4e0b\u547d\u4ee4\uff0c\u53ef\u4ee5\u8bbe\u7f6e\u663e\u793a\u7ebf\u7a0b\u53f7\uff1a<\/li>\n<\/ol>\n<pre>(gdb) set print thread-events off<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<ol>\n<li>\u8bbe\u7f6e\u663e\u793a\u5806\u6808<br \/>\u5728GDB\u4e2d\u8f93\u5165\u4ee5\u4e0b\u547d\u4ee4\uff0c\u53ef\u4ee5\u8bbe\u7f6e\u663e\u793a\u5806\u6808\uff1a<\/li>\n<\/ol>\n<pre>(gdb) set backtrace limit 10<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<ol>\n<li>\u8bbe\u7f6e\u663e\u793a\u7ebf\u7a0b\u4fe1\u606f<br \/>\u5728GDB\u4e2d\u8f93\u5165\u4ee5\u4e0b\u547d\u4ee4\uff0c\u53ef\u4ee5\u8bbe\u7f6e\u663e\u793a\u7ebf\u7a0b\u4fe1\u606f\uff1a<\/li>\n<\/ol>\n<pre>(gdb) show scheduling <\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<ol>\n<li>\u8bbe\u7f6e\u663e\u793a\u7ebf\u7a0b\u6267\u884c\u7684\u4ee3\u7801\u4f4d\u7f6e<br \/>\u5728GDB\u4e2d\u8f93\u5165\u4ee5\u4e0b\u547d\u4ee4\uff0c\u53ef\u4ee5\u8bbe\u7f6e\u663e\u793a\u7ebf\u7a0b\u6267\u884c\u7684\u4ee3\u7801\u4f4d\u7f6e\uff1a<\/li>\n<\/ol>\n<pre>(gdb) set scheduler-locking on<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p>\u4e94\u3001\u8bbe\u7f6e\u65ad\u70b9\u548c\u76d1\u89c6\u70b9<br \/>\u5728\u8c03\u8bd5\u8fc7\u7a0b\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u8bbe\u7f6e\u65ad\u70b9\u548c\u76d1\u89c6\u70b9\u6765\u63a7\u5236\u7a0b\u5e8f\u7684\u6267\u884c\u6d41\u7a0b\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u7528\u7684\u547d\u4ee4\u793a\u4f8b\uff1a<\/p>\n<ol>\n<li>\u8bbe\u7f6e\u65ad\u70b9<br \/>\u5728GDB\u4e2d\u8f93\u5165\u4ee5\u4e0b\u547d\u4ee4\uff0c\u53ef\u4ee5\u8bbe\u7f6e\u65ad\u70b9\uff1a<\/li>\n<\/ol>\n<pre>(gdb) break function_name<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<ol>\n<li>\u5220\u9664\u65ad\u70b9<br \/>\u5728GDB\u4e2d\u8f93\u5165\u4ee5\u4e0b\u547d\u4ee4\uff0c\u53ef\u4ee5\u5220\u9664\u65ad\u70b9\uff1a<\/li>\n<\/ol>\n<pre>(gdb) delete breakpoints<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<ol>\n<li>\u8bbe\u7f6e\u76d1\u89c6\u70b9<br \/>\u5728GDB\u4e2d\u8f93\u5165\u4ee5\u4e0b\u547d\u4ee4\uff0c\u53ef\u4ee5\u8bbe\u7f6e\u76d1\u89c6\u70b9\uff1a<\/li>\n<\/ol>\n<pre>(gdb) watch variable_name<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<ol>\n<li>\u5220\u9664\u76d1\u89c6\u70b9<br \/>\u5728GDB\u4e2d\u8f93\u5165\u4ee5\u4e0b\u547d\u4ee4\uff0c\u53ef\u4ee5\u5220\u9664\u76d1\u89c6\u70b9\uff1a<\/li>\n<\/ol>\n<pre>(gdb) delete watchpoints<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p>\u516d\u3001\u8c03\u8bd5\u591a\u7ebf\u7a0b\u7a0b\u5e8f<br \/>\u5728GDB\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u6765\u8c03\u8bd5\u591a\u7ebf\u7a0b\u7a0b\u5e8f\uff1a<\/p>\n<ol>\n<li>\u542f\u52a8\u7a0b\u5e8f<br \/>\u5728GDB\u4e2d\u8f93\u5165\u4ee5\u4e0b\u547d\u4ee4\uff0c\u53ef\u4ee5\u542f\u52a8\u7a0b\u5e8f\uff1a<\/li>\n<\/ol>\n<pre>(gdb) run<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<ol>\n<li>\u6682\u505c\u7a0b\u5e8f<br \/>\u5728GDB\u4e2d\u8f93\u5165\u4ee5\u4e0b\u547d\u4ee4\uff0c\u53ef\u4ee5\u6682\u505c\u6b63\u5728\u6267\u884c\u7684\u7a0b\u5e8f\uff1a<\/li>\n<\/ol>\n<pre>(gdb) Ctrl+C<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<ol>\n<li>\u5217\u51fa\u6240\u6709\u7ebf\u7a0b<br \/>\u5728GDB\u4e2d\u8f93\u5165\u4ee5\u4e0b\u547d\u4ee4\uff0c\u53ef\u4ee5\u5217\u51fa\u6240\u6709\u7ebf\u7a0b\uff1a<\/li>\n<\/ol>\n<pre>(gdb) info threads<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<ol>\n<li>\u5207\u6362\u5230\u6307\u5b9a\u7ebf\u7a0b<br \/>\u5728GDB\u4e2d\u8f93\u5165\u4ee5\u4e0b\u547d\u4ee4\uff0c\u53ef\u4ee5\u5207\u6362\u5230\u6307\u5b9a\u7ebf\u7a0b\uff1a<\/li>\n<\/ol>\n<pre>(gdb) thread thread_id<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<ol>\n<li>\u7ee7\u7eed\u6267\u884c\u7a0b\u5e8f<br \/>\u5728GDB\u4e2d\u8f93\u5165\u4ee5\u4e0b\u547d\u4ee4\uff0c\u53ef\u4ee5\u7ee7\u7eed\u6267\u884c\u7a0b\u5e8f\uff1a<\/li>\n<\/ol>\n<pre>(gdb) continue<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p>\u4e03\u3001\u603b\u7ed3<br \/>\u672c\u6587\u4ecb\u7ecd\u4e86\u5728linux\u4e0b\u4f7f\u7528gdb\u8c03\u8bd5\u591a\u7ebf\u7a0b\u7a0b\u5e8f\u7684\u5e38\u89c1\u914d\u7f6e\u65b9\u6cd5\uff0c\u5e76\u914d\u5907\u4e86\u4ee3\u7801\u793a\u4f8b\u3002\u901a\u8fc7\u5408\u7406\u7684\u914d\u7f6e\u8c03\u8bd5\u9009\u9879\u548c\u4f7f\u7528\u76f8\u5e94\u7684\u547d\u4ee4\uff0c\u6211\u4eec\u53ef\u4ee5\u5f88\u597d\u5730\u63a7\u5236\u548c\u5b9a\u4f4d\u591a\u7ebf\u7a0b\u7a0b\u5e8f\u4e2d\u7684\u95ee\u9898\uff0c\u63d0\u9ad8\u8c03\u8bd5\u6548\u7387\u548c\u51c6\u786e\u6027\u3002\u5e0c\u671b\u672c\u6587\u80fd\u591f\u5bf9\u8bfb\u8005\u5728\u591a\u7ebf\u7a0b\u8c03\u8bd5\u65b9\u9762\u63d0\u4f9b\u5e2e\u52a9\uff0c\u5e76\u6fc0\u53d1\u66f4\u591a\u7684\u5b66\u4e60\u548c\u5b9e\u8df5\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fLinux\u4e0b\u4f7f\u7528GDB\u8c03\u8bd5\u591a\u7ebf\u7a0b\u7a0b\u5e8f\u7684\u5e38\u89c1\u914d\u7f6e\u65b9\u6cd5\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>linux\u4e0b\u4f7f\u7528gdb\u8c03\u8bd5\u591a\u7ebf\u7a0b\u7a0b\u5e8f\u7684\u5e38\u89c1\u914d\u7f6e\u65b9\u6cd5 \u5f15\u8a00:\u5728\u591a\u7ebf\u7a0b\u7f16\u7a0b\u4e2d\uff0c\u8c03\u8bd5\u662f\u4e00\u9879\u5fc5\u4e0d\u53ef\u5c11\u7684\u5de5\u4f5c\u3002GDB\u662f\u4e00\u4e2a\u529f\u80fd\u5f3a\u5927\u7684\u8c03\u8bd5\u5668\uff0c\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u5b9a\u4f4d\u548c\u89e3\u51b3\u591a\u7ebf\u7a0b\u7a0b\u5e8f\u4e2d\u51fa\u73b0\u7684\u9519\u8bef\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u5728linux\u4e0b\u4f7f\u7528gdb\u8c03\u8bd5\u591a\u7ebf\u7a0b\u7a0b\u5e8f\u7684\u5e38\u89c1\u914d\u7f6e\u65b9\u6cd5\uff0c\u5e76\u914d\u5907\u4ee3\u7801\u793a\u4f8b\uff0c\u5e0c\u671b\u80fd\u5e2e\u52a9\u8bfb\u8005\u66f4\u597d\u5730\u7406\u89e3\u548c\u8fd0\u7528GDB\u3002 \u4e00\u3001\u5b89\u88c5GDB\u9996\u5148\uff0c\u6211\u4eec\u9700\u8981\u5728Linux\u7cfb\u7edf\u4e2d\u5b89\u88c5GDB\u3002\u5728\u7ec8\u7aef\u4e2d\u8f93\u5165\u4ee5\u4e0b\u547d\u4ee4\uff0c\u5373\u53ef\u5b8c\u6210\u5b89\u88c5\uff1a $ sudo apt-get install gdb \u767b\u5f55\u540e\u590d\u5236 \u4e8c\u3001\u7f16\u8bd1\u591a\u7ebf\u7a0b\u7a0b\u5e8f\u5728\u8fdb\u884c\u591a\u7ebf\u7a0b\u7a0b\u5e8f\u7684\u8c03\u8bd5\u4e4b\u524d\uff0c\u6211\u4eec\u9996\u5148\u9700\u8981\u7f16\u5199\u548c\u7f16\u8bd1\u4e00\u4e2a\u7b80\u5355\u7684\u591a\u7ebf\u7a0b\u7a0b\u5e8f\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u793a\u4f8b\u7a0b\u5e8f\u7684\u4ee3\u7801\uff1a #include &lt;stdio.h&gt; #include &lt;pthread.h&gt; #define NUM_THREADS 5 void* thread_func(void* thread_id) { long tid = (long)thread_id; printf(&#8220;Hello World! It&#8217;s me, thread #%ld! &#8220;, tid); pthread_exit(NULL); } int main() { pthread_t threads[NUM_THREADS]; int rc; long t; for (t = 0; t &lt;p&gt;\u6211\u4eec\u5c06\u4e0a\u8ff0\u4ee3\u7801\u4fdd\u5b58\u81f3\u4e00\u4e2a\u540d\u4e3amultithread.c\u7684\u6587\u4ef6\u4e2d\uff0c\u5e76\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u8fdb\u884c\u7f16\u8bd1\uff1a&lt;\/p&gt;&lt;pre class=&#8221;brush:php;toolbar:false;&#8221;&gt;$ gcc -g -pthread -o [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8],"tags":[],"class_list":["post-15814","post","type-post","status-publish","format-standard","hentry","category-os"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/15814","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=15814"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/15814\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=15814"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=15814"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=15814"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}