{"id":3384,"date":"2022-02-27T13:45:40","date_gmt":"2022-02-27T05:45:40","guid":{"rendered":"https:\/\/blog.iyatt.com\/?p=3384"},"modified":"2024-05-05T14:19:26","modified_gmt":"2024-05-05T06:19:26","slug":"gnu-%e7%bc%96%e8%af%91%e5%99%a8-sanitize-%e9%80%89%e9%a1%b9%e5%8f%8a%e5%85%b6%e5%ae%83%e8%b0%83%e8%af%95%e5%8f%82%e6%95%b0","status":"publish","type":"post","link":"https:\/\/blog.iyatt.com\/?p=3384","title":{"rendered":"GNU \u7f16\u8bd1\u5668 sanitize \u9009\u9879\u53ca\u5176\u5b83\u8c03\u8bd5\u53c2\u6570"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_83 ez-toc-wrap-center counter-hierarchy ez-toc-counter ez-toc-light-blue ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title ez-toc-toggle\" style=\"cursor:pointer\">\u76ee\u5f55<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/blog.iyatt.com\/?p=3384\/#%E7%AE%80%E4%BB%8B\" >\u7b80\u4ecb<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/blog.iyatt.com\/?p=3384\/#%E6%B5%8B%E8%AF%95%E7%8E%AF%E5%A2%83\" >\u6d4b\u8bd5\u73af\u5883<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/blog.iyatt.com\/?p=3384\/#sanitize_%E5%8F%82%E6%95%B0%E9%80%89%E9%A1%B9%E4%BD%BF%E7%94%A8\" >sanitize \u53c2\u6570\u9009\u9879\u4f7f\u7528<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/blog.iyatt.com\/?p=3384\/#%E6%B5%8B%E8%AF%95%E6%A1%88%E4%BE%8B\" >\u6d4b\u8bd5\u6848\u4f8b<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/blog.iyatt.com\/?p=3384\/#%E9%99%84\" >\u9644<\/a><\/li><\/ul><\/nav><\/div>\n\n<p class=\"wp-block-paragraph\">\u53d1\u5e03\u4e8e <a href=\"http:\/\/blog.iyatt.com\" target=\"_blank\" rel=\"noreferrer noopener\">blog.iyatt.com<\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E7%AE%80%E4%BB%8B\"><\/span>\u7b80\u4ecb<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">sanitize \u672c\u8eab\u662f\u6765\u81ea\u4e8e Google \u7684\u5f00\u6e90\u9879\u76ee <a href=\"https:\/\/github.com\/google\/sanitizers\" target=\"_blank\" rel=\"noreferrer noopener\">sanitizers<\/a>\uff0c\u800c sanitizer \u672c\u8eab\u53c8\u5c5e\u4e8e llvm \u7684\u4e00\u90e8\u5206\u3002sanitizer \u5bf9\u4e8e C\/C++ \u4ee3\u7801\u8c03\u8bd5\u800c\u8a00\u5341\u5206\u65b9\u4fbf\uff0c\u5f53\u7a0b\u5e8f\u51fa\u73b0\u5185\u5b58\u6cc4\u6f0f\u3001\u53ef\u5bfb\u5740\u6027\u95ee\u9898\u3001\u672a\u521d\u59cb\u5316\u5185\u5b58\u4f7f\u7528\u7b49\u60c5\u51b5\uff0c\u7a0b\u5e8f\u81ea\u5df1\u5c31\u4f1a\u7ec8\u6b62\u5e76\u4f1a\u63d0\u793a\u51fa\u73b0\u95ee\u9898\u7684\u5730\u65b9\u3002GNU\uff08gcc\/g++\uff09\u7f16\u8bd1\u5668\u4ece 4.8 \u5f00\u59cb\u5c31\u5df2\u7ecf\u652f\u6301 sanitizer \u7684\u529f\u80fd\u4e86\uff0c\u7f16\u8bd1\u65f6\u6dfb\u52a0\u9009\u9879\u53c2\u6570\u5c31\u80fd\u52a0\u5165 sanitizer \u68c0\u6d4b\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E6%B5%8B%E8%AF%95%E7%8E%AF%E5%A2%83\"><\/span>\u6d4b\u8bd5\u73af\u5883<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\uff081\uff09 \u6811\u8393\u6d3e\u5b98\u65b9\u7cfb\u7edf 64 \u4f4d\uff08Debian 11 arm64)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">GNU gcc 10.2.1<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uff082\uff09Windows \u5b50\u7cfb\u7edf Ubuntu 20.04<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">GNU gcc 9.4.0<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uff083\uff09Ubuntu 20.04 x86_64<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">GNU gcc 9.4.0<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"sanitize_%E5%8F%82%E6%95%B0%E9%80%89%E9%A1%B9%E4%BD%BF%E7%94%A8\"><\/span>sanitize \u53c2\u6570\u9009\u9879\u4f7f\u7528<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">gcc \u9009\u9879\u53c2\u6570\u5b98\u65b9\u8bf4\u660e\u6587\u6863\uff1a<a href=\"https:\/\/gcc.gnu.org\/onlinedocs\/gcc\/Instrumentation-Options.html\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/gcc.gnu.org\/onlinedocs\/gcc\/Instrumentation-Options.html<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u91cc\u4e3b\u8981\u662f\u4ecb\u7ecd\u51e0\u4e2a\u5e38\u7528\u7684 sanitizer \u53c2\u6570\uff0c\u66f4\u591a\u53ef\u4ee5\u67e5\u9605\u4e0a\u9762\u7684\u6587\u6863\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\uff081\uff09 -fsanitize=address<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">AddressSanitizer \u4e3b\u8981\u662f\u68c0\u67e5\u5185\u5b58\u76f8\u5173\u7684\u9519\u8bef\uff0c\u4e0d\u80fd\u548c -fsanitize=thread \u53c2\u6570\u5171\u7528\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\uff082\uff09-fsanitize=leak<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">LeakSanitizer \u4e3b\u8981\u662f\u68c0\u67e5\u5185\u5b58\u6cc4\u9732\uff0c\u4e0d\u80fd\u548c -fsanitize=thread \u53c2\u6570\u5171\u7528\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\uff083\uff09-fsanitize=undefined<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">UndefinedBehaviorSanitizer \u7528\u4e8e\u68c0\u67e5 <a href=\"https:\/\/zh.cppreference.com\/w\/%E9%A6%96%E9%A1%B5\" target=\"_blank\" rel=\"noreferrer noopener\">C\/C++ \u6807\u51c6<\/a>\u672a\u5b9a\u4e49\u7684\u884c\u4e3a\uff08\u7b80\u79f0 ub\uff09\uff0c\u4e0b\u9762\u6211\u4e3e\u4e00\u4e2a\u4f8b\u5b50\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">#include &lt;stdio.h>\n\n\nint main()\n{\n    int i = 3;\n    printf(\"%d\\n\", i++ * i++);\n}<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728 C \u8bed\u8a00\u7684\u6807\u51c6\u4e2d\uff0c\u5e76\u6ca1\u6709\u5b9a\u4e49 i++ * i++ \u5982\u4f55\u8ba1\u7b97\uff0c\u4e0d\u540c\u7f16\u8bd1\u5668\u6267\u884c\u7684\u7ed3\u679c\u53ef\u80fd\u4f1a\u4e0d\u540c\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">MSVC 2022 \u7f16\u8bd1\u8fd0\u884c\u7ed3\u679c\u4e3a 9\uff0c\u5373\u5148\u8ba1\u7b97\u7684 i * i<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"530\" height=\"62\" data-src=\"https:\/\/blog.iyatt.com\/wp-content\/uploads\/2022\/02\/image-102.png\" alt=\"\" class=\"wp-image-3390 lazyload\" data-srcset=\"https:\/\/blog.iyatt.com\/wp-content\/uploads\/2022\/02\/image-102.png 530w, https:\/\/blog.iyatt.com\/wp-content\/uploads\/2022\/02\/image-102-300x35.png 300w\" data-sizes=\"(max-width: 530px) 100vw, 530px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 530px; --smush-placeholder-aspect-ratio: 530\/62;\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">GNU gcc 10.2.1 \u7f16\u8bd1\u8fd0\u884c\u7ed3\u679c\u4e3a 12\uff0c\u5373\u524d\u4e00\u4e2a i \u5148\u81ea\u589e\u518d\u8ba1\u7b97\u7684 i * i<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"322\" height=\"70\" data-src=\"https:\/\/blog.iyatt.com\/wp-content\/uploads\/2022\/02\/image-103.png\" alt=\"\" class=\"wp-image-3391 lazyload\" data-srcset=\"https:\/\/blog.iyatt.com\/wp-content\/uploads\/2022\/02\/image-103.png 322w, https:\/\/blog.iyatt.com\/wp-content\/uploads\/2022\/02\/image-103-300x65.png 300w\" data-sizes=\"(max-width: 322px) 100vw, 322px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 322px; --smush-placeholder-aspect-ratio: 322\/70;\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u5bf9\u4e8e\u5f00\u53d1\u7a0b\u5e8f\u800c\u8a00\uff0c\u8fd9\u5c31\u53ef\u80fd\u662f\u4e00\u4e2a bug \u4e86\uff0c\u6807\u51c6\u6ca1\u6709\u89c4\u5b9a\u4f1a\u53d1\u751f\u4ec0\u4e48\uff0c\u5219\u4ec0\u4e48\u90fd\u53ef\u80fd\u53d1\u751f\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5bf9\u4e8e\u4e0a\u9762\u7684\u793a\u4f8b\u4ee3\u7801\u7528\u53c2\u6570 -Werror=sequence-point \u5728\u7f16\u8bd1\u65f6\u4e5f\u80fd\u68c0\u67e5\u51fa\u6765\uff0c\u4f46\u662f ub \u5e76\u4e0d\u662f\u53ea\u6709\u8fd9\u4e00\u79cd\uff0c\u5176\u5b83\u7684 ub \u53ef\u80fd\u4e0d\u5728\u8fd9\u4e2a\u53c2\u6570\u68c0\u67e5\u8303\u56f4\u5185\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"578\" height=\"129\" data-src=\"https:\/\/blog.iyatt.com\/wp-content\/uploads\/2022\/02\/image-104.png\" alt=\"\" class=\"wp-image-3392 lazyload\" data-srcset=\"https:\/\/blog.iyatt.com\/wp-content\/uploads\/2022\/02\/image-104.png 578w, https:\/\/blog.iyatt.com\/wp-content\/uploads\/2022\/02\/image-104-300x67.png 300w\" data-sizes=\"(max-width: 578px) 100vw, 578px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 578px; --smush-placeholder-aspect-ratio: 578\/129;\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u5199\u5230\u8fd9\u91cc\u7a81\u7136\u53c8\u89c9\u5f97\u5c34\u5c2c\u4e86\uff0c\u672c\u6765\u6211\u4ee5\u4e3a <strong>-fsanitize=undefined<\/strong> \u80fd\u591f\u68c0\u67e5\u6240\u6709\u7684 ub\uff0c\u7ed3\u679c\u53d1\u73b0\u6211\u4e0a\u9762\u4e3e\u4f8b\u7684\u60c5\u51b5\u5c31\u68c0\u67e5\u4e0d\u51fa\u6765\uff0c\u8fd8\u80fd\u6b63\u5e38\u8fd0\u884c\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"460\" height=\"53\" data-src=\"https:\/\/blog.iyatt.com\/wp-content\/uploads\/2022\/02\/image-105.png\" alt=\"\" class=\"wp-image-3393 lazyload\" data-srcset=\"https:\/\/blog.iyatt.com\/wp-content\/uploads\/2022\/02\/image-105.png 460w, https:\/\/blog.iyatt.com\/wp-content\/uploads\/2022\/02\/image-105-300x35.png 300w\" data-sizes=\"(max-width: 460px) 100vw, 460px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 460px; --smush-placeholder-aspect-ratio: 460\/53;\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u7136\u540e\u6211\u53bb\u770b\u4e86\u4e0b\u6587\u6863\uff0c\u4f3c\u4e4e\u8fd9\u4e2a\u4e0d\u5728\u68c0\u67e5\u8303\u56f4\u5185\uff0c\u4e0d\u8fc7\u95ee\u9898\u4e5f\u4e0d\u5927\uff0c\u5b9e\u9645\u8c03\u8bd5\u9879\u76ee\u7684\u65f6\u5019\u4e5f\u4e0d\u53ea\u662f\u7528 sanitize\uff0c\u8fd8\u6709\u5176\u5b83\u53c2\u6570\u914d\u5408\u4f7f\u7528\uff08\u89c1\u6587\u672b\uff09<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1024\" height=\"282\" data-src=\"https:\/\/blog.iyatt.com\/wp-content\/uploads\/2022\/02\/image-106-1024x282.png\" alt=\"\" class=\"wp-image-3394 lazyload\" data-srcset=\"https:\/\/blog.iyatt.com\/wp-content\/uploads\/2022\/02\/image-106-1024x282.png 1024w, https:\/\/blog.iyatt.com\/wp-content\/uploads\/2022\/02\/image-106-300x83.png 300w, https:\/\/blog.iyatt.com\/wp-content\/uploads\/2022\/02\/image-106-768x212.png 768w, https:\/\/blog.iyatt.com\/wp-content\/uploads\/2022\/02\/image-106.png 1153w\" data-sizes=\"(max-width: 1024px) 100vw, 1024px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 1024px; --smush-placeholder-aspect-ratio: 1024\/282;\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"983\" height=\"286\" data-src=\"https:\/\/blog.iyatt.com\/wp-content\/uploads\/2022\/02\/image-107.png\" alt=\"\" class=\"wp-image-3395 lazyload\" data-srcset=\"https:\/\/blog.iyatt.com\/wp-content\/uploads\/2022\/02\/image-107.png 983w, https:\/\/blog.iyatt.com\/wp-content\/uploads\/2022\/02\/image-107-300x87.png 300w, https:\/\/blog.iyatt.com\/wp-content\/uploads\/2022\/02\/image-107-768x223.png 768w\" data-sizes=\"(max-width: 983px) 100vw, 983px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 983px; --smush-placeholder-aspect-ratio: 983\/286;\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\uff084\uff09-fsanitize=thread<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">ThreadSanitizer \u7528\u4e8e\u68c0\u67e5\u6570\u636e\u7ade\u4e89\uff0c\u7528\u5728\u591a\u7ebf\u7a0b\u7a0b\u5e8f\u4e2d\u3002\u591a\u4e2a\u7ebf\u7a0b\u5728\u672a\u80fd\u6210\u529f\u52a0\u9501\u7684\u60c5\u51b5\u4e0b\u8bbf\u95ee\u540c\u4e00\u6570\u636e\uff0c\u5e76\u4e14\u81f3\u5c11\u6709\u4e00\u4e2a\u7ebf\u7a0b\u662f\u5199\u64cd\u4f5c\uff0c\u800c\u4ea7\u751f\u8bfb\u548c\u5199\u7684\u7ade\u4e89\u3002\u4e0d\u80fd\u548c -fsanitize=address \u53ca -fsanitize=leak\u5171\u7528\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E6%B5%8B%E8%AF%95%E6%A1%88%E4%BE%8B\"><\/span>\u6d4b\u8bd5\u6848\u4f8b<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">int main()\n{\n    int nums[2];\n    nums[0] = 0;\n    nums[1] = 1;\n    nums[2] = 2;\n}<\/pre>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"790\" height=\"878\" data-src=\"https:\/\/blog.iyatt.com\/wp-content\/uploads\/2022\/02\/image-110.png\" alt=\"\" class=\"wp-image-3400 lazyload\" data-srcset=\"https:\/\/blog.iyatt.com\/wp-content\/uploads\/2022\/02\/image-110.png 790w, https:\/\/blog.iyatt.com\/wp-content\/uploads\/2022\/02\/image-110-270x300.png 270w, https:\/\/blog.iyatt.com\/wp-content\/uploads\/2022\/02\/image-110-768x854.png 768w\" data-sizes=\"(max-width: 790px) 100vw, 790px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 790px; --smush-placeholder-aspect-ratio: 790\/878;\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e0a\u9762\u4ee3\u7801\u5b9a\u4e49\u4e86\u4e00\u4e2a\u5bb9\u91cf\u4e3a 2 \u7684\u6570\u7ec4\uff0c\u4f46\u662f\u5374\u8bd5\u56fe\u5411\u4e0d\u5b58\u5728\u7684\u7b2c 3 \u4e2a\u4f4d\u7f6e\u5199\u6570\u636e\uff0c\u5c31\u5f15\u8d77\u4e86\u6808\u7f13\u5b58\u8bbf\u95ee\u6ea2\u51fa\u7684\u9519\u8bef\uff0c\u5982\u679c\u4e0d\u4f7f\u7528\u4e0a\u9762\u7684\u53c2\u6570\uff0c\u53ef\u80fd\u7a0b\u5e8f\u4f1a\u6b63\u5e38\u8fd0\u884c\uff0c\u4f46\u662f\u53c8\u5c06\u662f\u4e00\u4e2a\u6f5c\u5728\u7684 bug\uff0c\u8bf4\u4e0d\u5b9a\u4ec0\u4e48\u65f6\u5019\u5c31\u5bfc\u81f4\u7a0b\u5e8f\u5d29\u6e83\u4e86\u3002\u901a\u8fc7 sanitize \u7f16\u8bd1\uff0c\u6267\u884c\u7a0b\u5e8f\u65f6\u5c31\u4f1a\u6307\u51fa\u51fa\u9519\u7684\u5730\u65b9\u548c\u539f\u56e0\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E9%99%84\"><\/span>\u9644<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u5f53\u7136\u4e0a\u9762\u662f\u5c5e\u4e8e sanitize \u7684\u53c2\u6570\uff0cgcc \u8fd8\u6709\u5176\u5b83\u5f88\u591a\u53c2\u6570\u53ef\u4ee5\u7528\u4e8e\u68c0\u67e5\u4ee3\u7801\u95ee\u9898\uff0c\u4e0b\u9762\u662f\u6211\u8c03\u8bd5\u7528\u7684\u53c2\u6570\uff0c\u53ef\u4ee5\u68c0\u67e5\u5404\u79cd\u5e38\u89c1\u7684\u95ee\u9898\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">-no-pie -std=c17 -Wall -Werror=return-type -Werror=address -Werror=sequence-point -Werror=format-security -Wextra -pedantic -Wimplicit-fallthrough -Wsequence-point -Wswitch-unreachable -Wswitch-enum -Wstringop-truncation -Wbool-compare -Wtautological-compare -Wfloat-equal -Wshadow=global -Wpointer-arith -Wpointer-compare -Wcast-align -Wcast-qual -Wwrite-strings -Wdangling-else -Wlogical-op -Wconversion -g -O0<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u2460 \u5176\u4e2d -no-pie \u4f1a\u8ba9\u7f16\u8bd1\u51fa\u7684\u7a0b\u5e8f\u6027\u8d28\u4e3a\u53ef\u6267\u884c\u7a0b\u5e8f\uff0c\u4e0d\u52a0\u8fd9\u4e2a\u53c2\u6570\u65f6\uff0cgcc \u7f16\u8bd1\u51fa\u7684\u4e8c\u8fdb\u5236\u6587\u4ef6\u5c31\u662f\u52a8\u6001\u5e93\u7c7b\u578b\uff0c\u901a\u8fc7\u7ec8\u7aef\u547d\u4ee4\u53ef\u4ee5\u8fd0\u884c\uff0c\u4f46\u662f\u5728\u6587\u4ef6\u7ba1\u7406\u5668\u53cc\u51fb\u5c31\u4e0d\u80fd\u8fd0\u884c\u4e86\uff0c\u4f1a\u88ab\u5f53\u505a\u662f\u666e\u901a\u6587\u4ef6\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">pie<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"486\" height=\"582\" data-src=\"https:\/\/blog.iyatt.com\/wp-content\/uploads\/2022\/02\/image-109.png\" alt=\"\" class=\"wp-image-3401 lazyload\" data-srcset=\"https:\/\/blog.iyatt.com\/wp-content\/uploads\/2022\/02\/image-109.png 486w, https:\/\/blog.iyatt.com\/wp-content\/uploads\/2022\/02\/image-109-251x300.png 251w\" data-sizes=\"(max-width: 486px) 100vw, 486px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 486px; --smush-placeholder-aspect-ratio: 486\/582;\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">no-pie<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"481\" height=\"327\" data-src=\"https:\/\/blog.iyatt.com\/wp-content\/uploads\/2022\/02\/image-111.png\" alt=\"\" class=\"wp-image-3402 lazyload\" data-srcset=\"https:\/\/blog.iyatt.com\/wp-content\/uploads\/2022\/02\/image-111.png 481w, https:\/\/blog.iyatt.com\/wp-content\/uploads\/2022\/02\/image-111-300x204.png 300w\" data-sizes=\"(max-width: 481px) 100vw, 481px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 481px; --smush-placeholder-aspect-ratio: 481\/327;\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">PIE\u5168\u79f0\u662fposition-independent executable\uff0c\u4e2d\u6587\u89e3\u91ca\u4e3a\u5730\u5740\u65e0\u5173\u53ef\u6267\u884c\u6587\u4ef6\uff0c\u8be5\u6280\u672f\u662f\u4e00\u4e2a\u9488\u5bf9\u4ee3\u7801\u6bb5\uff08.text\uff09\u3001\u6570\u636e\u6bb5\uff08.data\uff09\u3001\u672a\u521d\u59cb\u5316\u5168\u5c40\u53d8\u91cf\u6bb5\uff08.bss\uff09\u7b49\u56fa\u5b9a\u5730\u5740\u7684\u4e00\u4e2a\u9632\u62a4\u6280\u672f\uff0c\u5982\u679c\u7a0b\u5e8f\u5f00\u542f\u4e86PIE\u4fdd\u62a4\u7684\u8bdd\uff0c\u5728\u6bcf\u6b21\u52a0\u8f7d\u7a0b\u5e8f\u65f6\u90fd\u53d8\u6362\u52a0\u8f7d\u5730\u5740\uff0cgcc \u9ed8\u8ba4\u5c31\u662f\u5f00\u542f pie\uff0c\u901a\u8fc7\u6307\u5b9a -no-pie \u53ef\u4ee5\u5173\u95ed\uff0c\u90a3\u4e48\u7a0b\u5e8f\u5c31\u4f1a\u88ab\u5206\u914d\u9759\u6001\u7684\u5730\u5740\uff0c\u6bcf\u6b21\u8fd0\u884c\u90fd\u4e00\u6837\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u56e0\u4e3a pie \u7a0b\u5e8f\u65e0\u6cd5\u76f4\u63a5\u53cc\u51fb\u8fd0\u884c\uff0c\u4e00\u822c\u7f16\u5199\u7a0b\u5e8f\u6211\u4f1a\u6307\u5b9a -no-pie\uff0c\u5982\u679c\u662f\u5199\u5e93\u5c31\u6ca1\u5fc5\u8981\u52a0 -no-pie \u4e86\u3002\u5f53\u7136\u5bf9\u4e8e\u4e00\u822c\u7684\u7a0b\u5e8f\u80fd\u4e0d\u80fd\u53cc\u51fb\u8fd0\u884c\u4e5f\u6ca1\u6709\u5173\u7cfb\uff0c\u90fd\u662f\u5728\u7ec8\u7aef\u4e2d\u8fd0\u884c\u7684\uff0c\u4f46\u662f\u5bf9\u4e8e\u56fe\u5f62\u7528\u6237\u754c\u9762\u7a0b\u5e8f\u8fd8\u662f\u8981\u80fd\u591f\u76f4\u63a5\u53cc\u51fb\u8fd0\u884c\u6700\u597d\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2461 -std=c17 \u662f\u6307\u5b9a<a href=\"https:\/\/zh.cppreference.com\/w\/%E9%A6%96%E9%A1%B5\" target=\"_blank\" rel=\"noreferrer noopener\">\u7f16\u8bd1\u6807\u51c6<\/a>\uff0c\u76ee\u524d\u7684 C\u8bed\u8a00\u6807\u51c6\u6709\uff1aC89, C95, C99,&nbsp;C11,&nbsp;C17 \u4ee5\u53ca\u6b63\u5728\u5236\u5b9a\u4e2d\u7684 c23\uff0c\u5bf9\u4e8e\u6807\u51c6\u652f\u6301\u7684\u60c5\u51b5\u4e5f\u8981\u770b\u7f16\u8bd1\u5668\u7248\u672c\uff0c\u6807\u51c6\u4ee3\u53f7\u5927\u81f4\u5c31\u5bf9\u5e94\u4e86\u53d1\u5e03\u5e74\u4efd\uff0c\u4e00\u4e2a 2010 \u53d1\u5e03\u7684\u7f16\u8bd1\u5668\u80af\u5b9a\u4e5f\u65e0\u6cd5\u652f\u6301 c17\uff0c\u90a3\u65f6\u5019\u90fd\u8fd8\u6ca1\u6709 c17\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u53ef\u4ee5\u67e5\u770b\u7f16\u8bd1\u7248\u672c\u5224\u65ad\u5e74\u4efd\uff0c\u8fd9\u91cc\u5c31\u80fd\u770b\u5230 Copyright 2020\uff0c\u665a\u4e8e 17\uff0c\u5b9e\u9645\u4e5f\u662f\u652f\u6301 c17 \u7684<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"573\" height=\"121\" data-src=\"https:\/\/blog.iyatt.com\/wp-content\/uploads\/2022\/02\/image-112.png\" alt=\"\" class=\"wp-image-3403 lazyload\" data-srcset=\"https:\/\/blog.iyatt.com\/wp-content\/uploads\/2022\/02\/image-112.png 573w, https:\/\/blog.iyatt.com\/wp-content\/uploads\/2022\/02\/image-112-300x63.png 300w\" data-sizes=\"(max-width: 573px) 100vw, 573px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 573px; --smush-placeholder-aspect-ratio: 573\/121;\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e5f\u53ef\u4ee5\u6267\u884c\u547d\u4ee4\u5c1d\u8bd5\uff0c\u4e0d\u652f\u6301\u4f1a\u63d0\u793a<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"615\" height=\"196\" data-src=\"https:\/\/blog.iyatt.com\/wp-content\/uploads\/2022\/02\/image-113.png\" alt=\"\" class=\"wp-image-3404 lazyload\" data-srcset=\"https:\/\/blog.iyatt.com\/wp-content\/uploads\/2022\/02\/image-113.png 615w, https:\/\/blog.iyatt.com\/wp-content\/uploads\/2022\/02\/image-113-300x96.png 300w\" data-sizes=\"(max-width: 615px) 100vw, 615px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 615px; --smush-placeholder-aspect-ratio: 615\/196;\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u76ee\u524d\u6211\u6d4b\u8bd5\u548c\u6784\u5efa\u90fd\u662f\u57fa\u4e8e C17<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">ps: C++ \u6807\u51c6\u4ee3\u53f7\uff1aC++98, C++03, C++11, C++14, C++17, C++20, C++23<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2462 -g \u5c31\u662f\u7f16\u8bd1\u65f6\u5411\u5411\u4e8c\u8fdb\u5236\u6587\u4ef6\u4e2d\u6dfb\u52a0\u8c03\u8bd5\u4fe1\u606f\uff0c\u53ef\u4ee5\u4f7f\u7528 gdb \u8c03\u8bd5\u8fd0\u884c\u7f16\u8bd1\u7684\u7a0b\u5e8f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u53d1\u5e03\u4e8e blog.iyatt.com \u7b80\u4ecb sanitize \u672c\u8eab\u662f\u6765\u81ea\u4e8e Google \u7684\u5f00\u6e90\u9879\u76ee sani [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"zakra_page_container_layout":"customizer","zakra_page_sidebar_layout":"customizer","zakra_remove_content_margin":false,"zakra_sidebar":"customizer","zakra_transparent_header":"customizer","zakra_logo":0,"zakra_main_header_style":"default","zakra_menu_item_color":"","zakra_menu_item_hover_color":"","zakra_menu_item_active_color":"","zakra_menu_active_style":"","zakra_page_header":true,"_lmt_disableupdate":"","_lmt_disable":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-3384","post","type-post","status-publish","format-standard","hentry","category-all"],"modified_by":"IYATT-yx","_links":{"self":[{"href":"https:\/\/blog.iyatt.com\/index.php?rest_route=\/wp\/v2\/posts\/3384","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.iyatt.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.iyatt.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.iyatt.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.iyatt.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3384"}],"version-history":[{"count":0,"href":"https:\/\/blog.iyatt.com\/index.php?rest_route=\/wp\/v2\/posts\/3384\/revisions"}],"wp:attachment":[{"href":"https:\/\/blog.iyatt.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3384"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.iyatt.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3384"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.iyatt.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3384"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}