{"id":770,"date":"2023-04-09T01:08:23","date_gmt":"2023-04-08T17:08:23","guid":{"rendered":"https:\/\/www.orztip.com\/?p=770&article_title="},"modified":"2023-04-09T01:10:23","modified_gmt":"2023-04-08T17:10:23","slug":"generate-vmlinux-h-using-dwarves-pahole-bpftool","status":"publish","type":"post","link":"https:\/\/www.orztip.com\/?p=770&article_title=generate-vmlinux-h-using-dwarves-pahole-bpftool","title":{"rendered":"\u5982\u4f55\u4f7f\u7528dwarves pahole\uff0c\u4ecevmlinux\u6587\u4ef6\u751f\u6210vmlinux.h\u5934\u6587\u4ef6\uff1f"},"content":{"rendered":"\n

vmlinux.h\u5934\u6587\u4ef6\u5bf9\u7f16\u5199eBPF\u7a0b\u5e8f\u975e\u5e38\u91cd\u8981\uff0c\u4f46\u9700\u8981\u4ecevmlinux\u6587\u4ef6\u81ea\u884c\u751f\u6210\u3002\u90a3\u5982\u4f55\u4ecevmlinux\u6587\u4ef6\u751f\u6210vmlinux.h\u5934\u6587\u4ef6\uff1f<\/p>\n\n\n\n

\u8fd9\u4e2a\u95ee\u9898\u9700\u8981\u89c6\u4e4edwarves\u4e2d\u7684\u7248\u672c\u53f7\u800c\u5b9a\u3002<\/p>\n\n\n\n

\u65b9\u6cd5\u4e00\uff1a\u5982\u679cdwarves\u7248\u672c\u5c0f\u4e8e1.24\uff0c\u5219\u9700\u8981pahole + bpftool\u3002<\/strong><\/p>\n\n\n\n

\u547d\u4ee4\u884c\u5982\u4e0b\uff1a<\/p>\n\n\n\n

cp -a vmlinux vmlinux.btf\npahole -J vmlinux.btf\nbpftool btf dump file vmlinux.btf format c > vmlinux.h<\/code><\/pre>\n\n\n\n
\u6ce8\u610f\uff1a\u8be5\u65b9\u6cd5\u8fd0\u884cbpftool\u8fd9\u4e2a\u8fc7\u7a0b\u4f1a\u975e\u5e38\u975e\u5e38\u6162\uff0c\u751a\u81f3\u53ef\u80fd\u51e0\u4e2a\u5c0f\u65f6\u90fd\u672a\u5fc5\u80fd\u8fd0\u884c\u6210\u529f\uff1b\u800c\u4e14\u751f\u6210\u7684vmlinux.h\u6587\u4ef6\u751a\u81f3\u53ef\u4ee5\u8fbe\u5230\u8d85\u8fc7200MB\u3002\u5efa\u8bae\u4f7f\u7528\u65b9\u6cd5\u4e8c\u3002<\/p>\n\n\n\n
<\/p>\n\n\n\n
\u65b9\u6cd5\u4e8c\uff1a\u5982\u679cdwarves\u7248\u672c\u5927\u4e8e\u7b49\u4e8e1.24\uff0c\u5219\u53ea\u9700\u8981pahole\u3002<\/strong><\/p>\n\n\n\n
\u57282022\u5e748\u6708\u53d1\u5e03\u7684dwarves 1.24\u7248\u672c\u4e2d\uff0cpahole\u589e\u52a0\u4e86\u4e00\u4e2a–compile\u9009\u9879\uff0c\u80fd\u76f4\u63a5\u4ecevmlinux\u751f\u6210vmlinux.h\u5934\u6587\u4ef6[1]\u3002<\/p>\n\n\n\n
\u547d\u4ee4\u884c\u5982\u4e0b\uff1a<\/p>\n\n\n\n
.\/pahole --compile vmlinux > vmlinux.h<\/code><\/pre>\n\n\n\n
\u5982\u679c\u5b89\u88c5\u7684linux\u53d1\u884c\u7248\u9644\u5e26\u7684dwarves\u5c0f\u4e8e1.24\uff0c\u5efa\u8bae\u81ea\u884c\u7f16\u8bd1\u4e00\u4efd1.24\u548c\u4ee5\u4e0a\u7248\u672c\u7684dwarves\uff0c\u7136\u540e\u7528\u65b0\u7248\u672c\u7684pahole\u8fd0\u884c\u65b9\u6cd5\u4e8c\u3002<\/p>\n\n\n\n
<\/p>\n\n\n\n
\u53c2\u8003\u94fe\u63a5\uff1a<\/p>\n\n\n\n
[1]https:\/\/github.com\/acmel\/dwarves\/blob\/master\/changes-v1.24<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"
vmlinux.h\u5934\u6587\u4ef6\u5bf9\u7f16\u5199eBPF\u7a0b\u5e8f\u975e\u5e38\u91cd\u8981\uff0c\u4f46\u9700\u8981\u4ecevmlinux\u6587\u4ef6\u81ea\u884c\u751f\u6210\u3002\u90a3\u5982\u4f55\u4ecevmlinux… \u7ee7\u7eed\u9605\u8bfb\u5982\u4f55\u4f7f\u7528dwarves pahole\uff0c\u4ecevmlinux\u6587\u4ef6\u751f\u6210vmlinux.h\u5934\u6587\u4ef6\uff1f<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7,116,6],"tags":[142,139,140,14,141],"_links":{"self":[{"href":"https:\/\/www.orztip.com\/index.php?rest_route=\/wp\/v2\/posts\/770"}],"collection":[{"href":"https:\/\/www.orztip.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.orztip.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.orztip.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.orztip.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=770"}],"version-history":[{"count":3,"href":"https:\/\/www.orztip.com\/index.php?rest_route=\/wp\/v2\/posts\/770\/revisions"}],"predecessor-version":[{"id":773,"href":"https:\/\/www.orztip.com\/index.php?rest_route=\/wp\/v2\/posts\/770\/revisions\/773"}],"wp:attachment":[{"href":"https:\/\/www.orztip.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=770"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.orztip.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=770"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.orztip.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=770"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}