{"id":429436,"date":"2021-04-17T22:20:42","date_gmt":"2021-04-17T14:20:42","guid":{"rendered":"http:\/\/4563.org\/?p=429436"},"modified":"2021-04-17T22:20:42","modified_gmt":"2021-04-17T14:20:42","slug":"arm64-%e6%b1%87%e7%bc%96%e4%b8%ad%e6%9c%89%e5%85%b3-jump-table-%e7%9a%84%e9%97%ae%e9%a2%98","status":"publish","type":"post","link":"http:\/\/4563.org\/?p=429436","title":{"rendered":"ARM64 \u6c47\u7f16\u4e2d\u6709\u5173 jump table \u7684\u95ee\u9898"},"content":{"rendered":"
\n
\n
\n

ARM64 \u6c47\u7f16\u4e2d\u6709\u5173 jump table \u7684\u95ee\u9898 <\/h1>\n

<\/p>\n

\n
\u8cc7\u6df1\u5927\u4f6c : menyakun <\/span> <\/i> 5<\/span> <\/div>\n
<\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n
<\/p>\n

\u6211\u77e5\u9053\u4e86 jump table \u7684\u5730\u5740\uff0c\u4ece rodata \u4e2d dump \u51fa\u4e86\u5bf9\u5e94\u7684\u6570\u636e\uff0c\u4f46\u4e0d\u77e5\u9053 jump table \u4e2d\u7684\u6570\u636e\u662f\u6309\u7167\u4ec0\u4e48\u683c\u5f0f\u7ec4\u7ec7\u7684<\/p>\n

\u8868\u7684\u4e00\u884c\u662f 4 \u4e2a\u5b57\u8282\uff0c\u6240\u4ee5”fffe90d4″, “fffe9124″\u8fd9\u4e9b\u503c\u4ee3\u8868\u4e86\u5730\u5740\u7684 offset \uff1f\u4f46\u8fd9\u4e9b\u503c\u4e5f\u592a\u5927\u4e86\u5427\uff0c\u8fd9\u4e2a\u51fd\u6570\u6ca1\u8fd9\u4e48\u591a\u884c\u3002<\/p>\n

\u6211\u67e5\u4e86\u8001\u534a\u5929\uff0c\u4e5f\u6ca1\u6709\u67e5\u5230\u76f8\u5173\u7684\u8d44\u6599\uff0c\u6c42\u61c2\u6c47\u7f16\u7684\u8001\u54e5\u5e2e\u5fd9\u770b\u770b\u3002<\/p>\n

\"ARM64<\/p>\n<\/p><\/div>\n

\u5927\u4f6c\u6709\u8a71\u8aaa<\/b> (6<\/span>) <\/div>\n
<\/div>\n<\/p><\/div>\n<\/p><\/div>\n
    \n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : Nerv <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u53ea\u8bd5\u8fc7\u7528 readelf \u8bfb\u53d6 linux x86-64 elf \u6587\u4ef6\u7684 symtable\uff0c\u4e0d\u77e5\u9053\u5bf9\u5e94\u7684 arm \u7248\u672c\u6709\u6ca1\u6709\u8fd9\u79cd\u529f\u80fd\u3002 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : menyakun <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @Nerv \u8fd9\u4e2a jump table \u662f\u4e00\u4e2a switch-case \u751f\u6210\u7684\uff0c\u6240\u4ee5\u5bf9\u5e94\u7684\u76ee\u6807\u5730\u5740\u6ca1\u6709\u8bb0\u5f55\u5728 symtable \u91cc\u9762 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : wezzard <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u9019\u88e1\u5b58\u5132\u7684\u662f\u4e00\u500b\u76f8\u5c0d\u504f\u79fb\u91cf\uff0c\u61c9\u8a72\u770b\u6210\u4e00\u500b\u6709\u7b26\u865f\u7684\u6574\u6578\u3002\u4f60\u61c9\u8a72\u7528\u8a72\u689d\u8a18\u9304\u7684\u57fa\u5740\u52a0\u4e0a\u9019\u500b\u6709\u7b26\u865f\u7684\u76f8\u5c0d\u504f\u79fb\uff0c\u7136\u5f8c\u5f97\u51fa\u8df3\u8f49\u76ee\u6a19\u5730\u5740\u3002 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : akira <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u770b\u5230 feff \u5c31\u89c9\u5f97\u5e94\u8be5\u662f -100 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : levelworm <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u770b\u5230 ff \u6253\u5934\u7684\u6211\u7b2c\u4e00\u53cd\u5e94\u662f sign extended\uff0c\u5177\u4f53\u5f97\u53bb\u67e5\u67e5\u3002\u3002\u3002 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : zk8802 <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    Jump table \u4e2d\u5e38\u89c1\u7684\u5730\u5740 \/\u504f\u79fb\u7f16\u7801\u65b9\u5f0f\u6709\u597d\u51e0\u79cd\u3002\u4f60\u9700\u8981\u770b\u4e00\u4e0b\u5bf9\u5e94\u7684\u6c47\u7f16\u6307\u4ee4\u662f\u5982\u4f55\u89e3\u6790\u8fd9\u4e2a jump table \u7684\u3002<\/p>\n

    \u53e6\u5916\u4f60\u8fd9\u91cc\u9762\u7684\u8d1f\u6570\u5927\u6982\u7387\u662f\u76f8\u5bf9 PC \u7684\u504f\u79fb\u3002 <\/p><\/div>\n<\/p><\/div>\n<\/li>\n

  • \n","protected":false},"excerpt":{"rendered":"

    ARM64 \u6c47\u7f16\u4e2d\u6709\u5173 jump …<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[],"tags":[],"_links":{"self":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/429436"}],"collection":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=429436"}],"version-history":[{"count":0,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/429436\/revisions"}],"wp:attachment":[{"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=429436"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=429436"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=429436"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}