{"id":659,"date":"2019-10-08T12:14:52","date_gmt":"2019-10-08T04:14:52","guid":{"rendered":"https:\/\/www.sunjw.cn\/?p=659"},"modified":"2021-10-14T19:07:42","modified_gmt":"2021-10-14T11:07:42","slug":"eh_frame","status":"publish","type":"post","link":"https:\/\/www.sunjw.cn\/index.php\/2019\/10\/08\/eh_frame\/","title":{"rendered":"[Linux]ELF\u4e2d.eh_frame\u6bb5\u7684\u7b80\u5355\u8bf4\u660e"},"content":{"rendered":"<p>\u6700\u8fd1\u5728\u8fdb\u884c\u67d0\u4e2aSo\u6587\u4ef6\u7684size\u4f18\u5316\uff0c\u901a\u8fc7\u547d\u4ee4\uff08readelf -t\/objdump -h\uff09\u53d1\u73b0.eh_frame\u6bb5\u5360\u4e86\u4e00\u5b9a\u7684\u7a7a\u95f4\uff0c\u5982\u4e0b\uff1a<br \/>\n<strong><em>12 .rodata 0001a9f0 000de060 000de060 000de060 2**5<\/em><\/strong><br \/>\n<strong><em>CONTENTS, ALLOC, LOAD, READONLY, DATA<\/em><\/strong><br \/>\n<strong><em>13 .eh_frame_hdr 00005914 000f8a50 000f8a50 000f8a50 2**2<\/em><\/strong><br \/>\n<strong><em>CONTENTS, ALLOC, LOAD, READONLY, DATA<\/em><\/strong><br \/>\n<strong><em>14 .eh_frame <span style=\"background-color: #ff0000;\">0001b984<\/span> 000fe364 000fe364 000fe364 2**2<\/em><\/strong><br \/>\n<strong><em>CONTENTS, ALLOC, LOAD, READONLY, DATA<\/em><\/strong><\/p>\n<p>\u7f51\u4e0a\u641c\u4e86\u4e00\u4e0b\uff0c\u53d1\u73b0\u8fd9\u4e2a\u6bb5\u4e3b\u8981\u7528\u4e8e\u7cfb\u7edf\u8fd0\u884c\u65f6\u8c03\u8bd5\u4f7f\u7528\u7684\uff0c\u4fbf\u4e8e\u6808\u5c55\u5f00\u8c03\u8bd5\uff08\u8ddf-g\u9009\u9879\u4e0d\u540c\uff0c-g\u4fe1\u606f\u53ef\u4ee5\u901a\u8fc7strip\u547d\u4ee4\u53bb\u6389\uff09\u3002<\/p>\n<p>\u82e5\u8981\u53bb\u6389\u6b64\u6bb5\u4fe1\u606f\uff0c\u53ef\u4ee5\u901a\u8fc7-fno-asynchronous-unwind-tables\u7f16\u8bd1\u9009\u9879\uff0c\u4f46\u662f\u53ef\u80fd\u65e0\u6cd5\u5b8c\u5168\u53bb\u9664\uff0c\u539f\u56e0\u662f\u7f16\u8bd1\u4f7f\u7528\u7684\u7684\u5176\u4ed6.o\u53ef\u80fd\u672a\u52a0\u6b64\u9009\u9879\u3002<\/p>\n<p><strong><em> 12 .rodata 0001a9f0 000de060 000de060 000de060 2**5<\/em><\/strong><br \/>\n<strong><em>CONTENTS, ALLOC, LOAD, READONLY, DATA<\/em><\/strong><br \/>\n<strong><em>13 .eh_frame_hdr 00000034 000f8a50 000f8a50 000f8a50 2**2<\/em><\/strong><br \/>\n<strong><em>CONTENTS, ALLOC, LOAD, READONLY, DATA<\/em><\/strong><br \/>\n<strong><em>14 .eh_frame <span style=\"background-color: #ff0000;\">000000fc<\/span> 000f8a84 000f8a84 000f8a84 2**2<\/em><\/strong><br \/>\n<strong><em>CONTENTS, ALLOC, LOAD, READONLY, DATA<\/em><\/strong><\/p>\n<p>eh_frame_hdr\u4fdd\u5b58\u7740eh_frame\u7684\u989d\u5916\u4fe1\u606f\uff0c\u5305\u62ec\u6307\u5411eh_frame\u6570\u636e\u8d77\u59cb\u5730\u5740\u7684\u6307\u9488\u4ee5\u53caa binary search table of pointers to the .eh_frame records are found in this section.<\/p>\n<p><strong>\u5173\u4e8eeh_frame_hdr\u4fe1\u606f\uff1a<\/strong><br \/>\n<strong>https:\/\/refspecs.linuxfoundation.org\/LSB_1.3.0\/gLSB\/gLSB\/ehframehdr.html<\/strong><\/p>\n<p>\u76f8\u5173\u4fe1\u606f\u6765\u6e90\uff1a<strong>https:\/\/stackoverflow.com\/questions\/26300819\/why-gcc-compiled-c-program-needs-eh-frame-section<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6700\u8fd1\u5728\u8fdb\u884c\u67d0\u4e2aSo\u6587\u4ef6\u7684size\u4f18\u5316\uff0c\u901a\u8fc7\u547d\u4ee4\uff08readelf -t\/objdump -h\uff09\u53d1\u73b0.eh_fra [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[17],"tags":[],"_links":{"self":[{"href":"https:\/\/www.sunjw.cn\/index.php\/wp-json\/wp\/v2\/posts\/659"}],"collection":[{"href":"https:\/\/www.sunjw.cn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.sunjw.cn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.sunjw.cn\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.sunjw.cn\/index.php\/wp-json\/wp\/v2\/comments?post=659"}],"version-history":[{"count":4,"href":"https:\/\/www.sunjw.cn\/index.php\/wp-json\/wp\/v2\/posts\/659\/revisions"}],"predecessor-version":[{"id":663,"href":"https:\/\/www.sunjw.cn\/index.php\/wp-json\/wp\/v2\/posts\/659\/revisions\/663"}],"wp:attachment":[{"href":"https:\/\/www.sunjw.cn\/index.php\/wp-json\/wp\/v2\/media?parent=659"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.sunjw.cn\/index.php\/wp-json\/wp\/v2\/categories?post=659"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.sunjw.cn\/index.php\/wp-json\/wp\/v2\/tags?post=659"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}