{"id":10879,"date":"2020-07-10T22:21:13","date_gmt":"2020-07-10T13:21:13","guid":{"rendered":"https:\/\/its-more.jp\/ja_jp\/?p=10879"},"modified":"2020-07-11T10:12:40","modified_gmt":"2020-07-11T01:12:40","slug":"%e5%8b%95%e7%9a%84%e3%81%8b%e5%85%b1%e6%9c%89%e3%81%8b","status":"publish","type":"post","link":"https:\/\/its-more.jp\/ja_jp\/?p=10879","title":{"rendered":"\u52d5\u7684\u304b\u5171\u6709\u304b"},"content":{"rendered":"\n<p>\u958b\u767a\uff1a\u305d\u3046\u3044\u3048\u3070\u3001\u6614\u3088\u304f\u4f7f\u3063\u3066\u3044\u305f ldd \u3068\u3044\u3046\u30b3\u30de\u30f3\u30c9\u3092\u601d\u3044\u51fa\u3057\u307e\u3057\u305f\u3002\u52d5\u7684\u30e9\u30a4\u30d6\u30e9\u30ea\u306e\u4f9d\u5b58\u6027\u3092\u691c\u67fb\u3059\u308b\u30c4\u30fc\u30eb\u3067\u3059\u3002ldd \u30d7\u30ed\u30b0\u30e9\u30e0\u540d\u3001\u306e\u3088\u3046\u306b\u4f7f\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img loading=\"lazy\" width=\"510\" height=\"186\" src=\"https:\/\/its-more.jp\/ja_jp\/wp-content\/uploads\/2020\/07\/Screen-Shot-2020-07-11-at-1.07.49.png\" alt=\"\" class=\"wp-image-10883\" srcset=\"https:\/\/its-more.jp\/ja_jp\/wp-content\/uploads\/2020\/07\/Screen-Shot-2020-07-11-at-1.07.49.png 510w, https:\/\/its-more.jp\/ja_jp\/wp-content\/uploads\/2020\/07\/Screen-Shot-2020-07-11-at-1.07.49-300x109.png 300w\" sizes=\"(max-width: 510px) 100vw, 510px\" \/><\/figure><\/div>\n\n\n\n<p>\u958b\u767a\uff1a\u3067 vdso \u3063\u3066\u8a18\u61b6\u306b\u7121\u3044\u306e\u3067\u3001\u306a\u3093\u3060\u308d\u3046\u3068\u601d\u3063\u3066 man vdso \u3059\u308b\u3068\u3001\u300cThe \"vDSO\" (virtual dynamic shared object) is a small shared library that the kernel automatically maps into the address space of all user-space applications.\u300d\u3067\u3057\u305f\u3002\u3064\u307e\u308a\u3001\u5168\u3066\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u306f\u3053\u308c\u3092\u5171\u901a\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3068\u3057\u3066\u542b\u3080\u3001\u3068\u3044\u3046\u3082\u306e\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u958b\u767a\uff1a\u305d\u306e\u5229\u7528\u65b9\u6cd5\u306e\u4e00\u4f8b\u3068\u3057\u3066\u6319\u3052\u3089\u308c\u3066\u305f\u306e\u304c\u3001\u304f\u3057\u304f\u3082 gettimeofday(2)\u3000\u3067\u3057\u305f\u3002gettimeofday() \u306f\u73fe\u5728\u6642\u523b\u3092\u77e5\u308b\u305f\u3081\u306b\u975e\u5e38\u306b\u591a\u7528\u3055\u308c\u308b\u305f\u3081\u91cd\u3044\u3001\u306a\u306e\u3067\u305d\u306e\u5024\u3092\u30e6\u30fc\u30b6\u30d7\u30ed\u30bb\u30b9\u306e\u30e1\u30e2\u30ea\u7a7a\u9593\u4e0a\u306b\u30de\u30c3\u30d7\u3057\u3066\u3057\u307e\u3063\u3066\u3001\u30e1\u30e2\u30ea\u306e\u8aad\u307f\u51fa\u3057\u3067\u6e08\u307e\u305b\u3066\u3057\u307e\u304a\u3046\u3068\u3044\u3046\u8a71\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u958b\u767a\uff1a\u305f\u3068\u3048\u3070 AWS\u306eUbuntu 18.04 \u30d1\u30c3\u30b1\u30fc\u30b8\u3067\u306f\u3053\u3093\u306a\u3075\u3046\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" width=\"543\" height=\"443\" src=\"https:\/\/its-more.jp\/ja_jp\/wp-content\/uploads\/2020\/07\/Screen-Shot-2020-07-11-at-2.03.27.png\" alt=\"\" class=\"wp-image-10891\" srcset=\"https:\/\/its-more.jp\/ja_jp\/wp-content\/uploads\/2020\/07\/Screen-Shot-2020-07-11-at-2.03.27.png 543w, https:\/\/its-more.jp\/ja_jp\/wp-content\/uploads\/2020\/07\/Screen-Shot-2020-07-11-at-2.03.27-300x245.png 300w\" sizes=\"(max-width: 543px) 100vw, 543px\" \/><\/figure>\n\n\n\n<p>\u958b\u767a\uff1aAzure\u306eUbuntu18.04\u3067\u3082\u540c\u3058\u3088\u3046\u306a\u69d8\u5b50\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" width=\"543\" height=\"406\" src=\"https:\/\/its-more.jp\/ja_jp\/wp-content\/uploads\/2020\/07\/Screen-Shot-2020-07-11-at-1.56.58.png\" alt=\"\" class=\"wp-image-10890\" srcset=\"https:\/\/its-more.jp\/ja_jp\/wp-content\/uploads\/2020\/07\/Screen-Shot-2020-07-11-at-1.56.58.png 543w, https:\/\/its-more.jp\/ja_jp\/wp-content\/uploads\/2020\/07\/Screen-Shot-2020-07-11-at-1.56.58-300x224.png 300w\" sizes=\"(max-width: 543px) 100vw, 543px\" \/><\/figure>\n\n\n\n<p>\u958b\u767a\uff1a\u4e00\u65b9\u3001Amazon Linux \u3067\u306f\u3001strip \u3055\u308c\u3066\u3044\u3066\u30b7\u30f3\u30dc\u30eb\u30c6\u30fc\u30d6\u30eb\u3092\u898b\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u3002strip \u3055\u308c\u3066\u3044\u308b\u3068\u3044\u3046\u3053\u3068\u306f\u3001\u52d5\u7684\u30ea\u30f3\u30af\u306e\u5bfe\u8c61\u3068\u306a\u308b\u30b7\u30f3\u30dc\u30eb\u306f\u305d\u3053\u306b\u306f\u7121\u3044\u3068\u3044\u3046\u3088\u3046\u306b\u601d\u308f\u308c\u307e\u3059\u304c\u3001\u30d0\u30a4\u30ca\u30ea\u3092\u30c0\u30f3\u30d7\u3057\u3066\u307f\u308b\u3068 __vdso_gettimeofday \u3068\u3044\u3046\u306e\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img loading=\"lazy\" width=\"469\" height=\"157\" src=\"https:\/\/its-more.jp\/ja_jp\/wp-content\/uploads\/2020\/07\/Screen-Shot-2020-07-11-at-1.47.24.png\" alt=\"\" class=\"wp-image-10887\" srcset=\"https:\/\/its-more.jp\/ja_jp\/wp-content\/uploads\/2020\/07\/Screen-Shot-2020-07-11-at-1.47.24.png 469w, https:\/\/its-more.jp\/ja_jp\/wp-content\/uploads\/2020\/07\/Screen-Shot-2020-07-11-at-1.47.24-300x100.png 300w\" sizes=\"(max-width: 469px) 100vw, 469px\" \/><\/figure><\/div>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" width=\"479\" height=\"69\" src=\"https:\/\/its-more.jp\/ja_jp\/wp-content\/uploads\/2020\/07\/Screen-Shot-2020-07-11-at-1.50.31.png\" alt=\"\" class=\"wp-image-10889\" srcset=\"https:\/\/its-more.jp\/ja_jp\/wp-content\/uploads\/2020\/07\/Screen-Shot-2020-07-11-at-1.50.31.png 479w, https:\/\/its-more.jp\/ja_jp\/wp-content\/uploads\/2020\/07\/Screen-Shot-2020-07-11-at-1.50.31-300x43.png 300w\" sizes=\"(max-width: 479px) 100vw, 479px\" \/><\/figure>\n\n\n\n<p>\u958b\u767a\uff1a\u306a\u3093\u306b\u3057\u3066\u3082\u3001\u3053\u308c\u306f\u306a\u306b\u304b\u306b\u4f7f\u3048\u305d\u3046\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u958b\u767a\uff1a\u305d\u308c\u3067\u3001\u3084\u308a\u305f\u3044\u3053\u3068\u306f\u3001\u6a19\u6e96\u30e9\u30a4\u30d6\u30e9\u30ea\u306e\u4e2d\u306e gettimeofdays\u3060\u3051\u3092\u5165\u308c\u66ff\u3048\u308b\u3053\u3068\u3067\u3059\u3002\u305d\u308c\u3067\u3001libc.so \u306b\u81ea\u524d\u306e gettimeofdays\u3092\u8ffd\u52a0\u3057\u3066\u3084\u3063\u305f\u3089\u3069\u3046\u304b\u306a\u3068\u3001\u601d\u3046\u3068\u3001no version information available \u304c\u51fa\u305f\u306e\u3067\u2026\u3000\u8abf\u3079\u308b\u3068\u3001\u6614\u306a\u304c\u3089\u306e nm \u3058\u3083\u306a\u304f\u3001readelf \u3068\u3044\u3046\u30b3\u30de\u30f3\u30c9\u304c\u3042\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3057\u305f\u3002\u3053\u308c\u3067\u3001Amazon Linux \u306e vdso\u306e\u30b7\u30f3\u30dc\u30eb\u30c6\u30fc\u30d6\u30eb\u304c\u8aad\u3081\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" width=\"739\" height=\"257\" src=\"https:\/\/its-more.jp\/ja_jp\/wp-content\/uploads\/2020\/07\/Screen-Shot-2020-07-11-at-2.52.26.png\" alt=\"\" class=\"wp-image-10896\" srcset=\"https:\/\/its-more.jp\/ja_jp\/wp-content\/uploads\/2020\/07\/Screen-Shot-2020-07-11-at-2.52.26.png 739w, https:\/\/its-more.jp\/ja_jp\/wp-content\/uploads\/2020\/07\/Screen-Shot-2020-07-11-at-2.52.26-300x104.png 300w\" sizes=\"(max-width: 739px) 100vw, 739px\" \/><\/figure>\n\n\n\n<p>\u958b\u767a\uff1anm \u306f\u52d5\u7684\u30ea\u30f3\u30af\u7528\u306e\u30c6\u30fc\u30d6\u30eb\u3092\u898b\u306a\u3044\u306e\u3060\u308d\u3046\u304b\u3068\u304a\u3082\u3063\u305f\u3089\u3001-D \u3068\u3044\u3046\u30aa\u30d7\u30b7\u30e7\u30f3\u304c\u3042\u3063\u3066\u3001\u3053\u308c\u3067\u898b\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img loading=\"lazy\" width=\"739\" height=\"169\" src=\"https:\/\/its-more.jp\/ja_jp\/wp-content\/uploads\/2020\/07\/Screen-Shot-2020-07-11-at-2.55.10.png\" alt=\"\" class=\"wp-image-10897\" srcset=\"https:\/\/its-more.jp\/ja_jp\/wp-content\/uploads\/2020\/07\/Screen-Shot-2020-07-11-at-2.55.10.png 739w, https:\/\/its-more.jp\/ja_jp\/wp-content\/uploads\/2020\/07\/Screen-Shot-2020-07-11-at-2.55.10-300x69.png 300w\" sizes=\"(max-width: 739px) 100vw, 739px\" \/><\/figure><\/div>\n\n\n\n<p><\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u958b\u767a\uff1a\u305d\u3046\u3044\u3048\u3070\u3001\u6614\u3088\u304f\u4f7f\u3063\u3066\u3044\u305f ldd \u3068\u3044\u3046\u30b3\u30de\u30f3\u30c9\u3092\u601d\u3044\u51fa\u3057\u307e\u3057\u305f\u3002\u52d5\u7684\u30e9\u30a4\u30d6\u30e9\u30ea\u306e\u4f9d\u5b58\u6027\u3092\u691c\u67fb\u3059\u308b\u30c4\u30fc\u30eb\u3067\u3059\u3002ldd \u30d7\u30ed\u30b0\u30e9\u30e0\u540d\u3001\u306e\u3088\u3046\u306b\u4f7f\u3044\u307e\u3059\u3002 \u958b\u767a\uff1a\u3067 vdso \u3063\u3066\u8a18\u61b6\u306b\u7121\u3044\u306e\u3067\u3001\u306a\u3093\u3060\u308d\u3046\u3068\u601d\u3063\u3066 &hellip; <\/p>\n<p class=\"link-more\"><a href=\"https:\/\/its-more.jp\/ja_jp\/?p=10879\" class=\"more-link\"><span class=\"screen-reader-text\">\"\u52d5\u7684\u304b\u5171\u6709\u304b\" \u306e<\/span>\u7d9a\u304d\u3092\u8aad\u3080<\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[1],"tags":[],"_links":{"self":[{"href":"https:\/\/its-more.jp\/ja_jp\/index.php?rest_route=\/wp\/v2\/posts\/10879"}],"collection":[{"href":"https:\/\/its-more.jp\/ja_jp\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/its-more.jp\/ja_jp\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/its-more.jp\/ja_jp\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/its-more.jp\/ja_jp\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=10879"}],"version-history":[{"count":7,"href":"https:\/\/its-more.jp\/ja_jp\/index.php?rest_route=\/wp\/v2\/posts\/10879\/revisions"}],"predecessor-version":[{"id":10898,"href":"https:\/\/its-more.jp\/ja_jp\/index.php?rest_route=\/wp\/v2\/posts\/10879\/revisions\/10898"}],"wp:attachment":[{"href":"https:\/\/its-more.jp\/ja_jp\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=10879"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/its-more.jp\/ja_jp\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=10879"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/its-more.jp\/ja_jp\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=10879"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}