{"id":1051,"date":"2015-07-19T11:05:45","date_gmt":"2015-07-19T03:05:45","guid":{"rendered":"http:\/\/www.kumouse.com\/?p=1051"},"modified":"2015-07-19T11:05:45","modified_gmt":"2015-07-19T03:05:45","slug":"uclibceglibcglibcmusl-libc%e4%b9%8b%e9%97%b4%e7%9a%84%e5%8c%ba%e5%88%ab%e5%92%8c%e8%81%94%e7%b3%bb","status":"publish","type":"post","link":"https:\/\/www.kumouse.com\/?p=1051","title":{"rendered":"uclibc,eglibc,glibc,Musl-libc\u4e4b\u95f4\u7684\u533a\u522b\u548c\u8054\u7cfb"},"content":{"rendered":"<p>1.Glibc glibc = GNU C Library \u662fGNU\u9879\uff08GNU Project\uff09\u76ee\uff0c\u6240\u5b9e\u73b0\u7684 C\u8bed\u8a00\u6807\u51c6\u5e93\uff08C standard library\uff09\u3002 \u76ee\u524d\uff0c\u5e38\u89c1\u7684\u684c\u9762\u548c\u670d\u52a1\u5668\u4e2d\u7684GNU\/Linux\u7c7b\u7684\u7cfb\u7edf\u4e2d\uff0c\u90fd\u662f\u7528\u7684\u8fd9\u5957C\u8bed\u8a00\u6807\u51c6\u5e93\u3002 \u5176\u5b9e\u73b0\u4e86\u5e38\u89c1\u7684C\u5e93\u7684\u51fd\u6570\uff0c\u652f\u6301\u5f88\u591a\u79cd\u7cfb\u7edf\u5e73\u53f0\uff0c\u529f\u80fd\u5f88\u5168\uff0c\u4f46\u662f\u4e5f\u76f8\u5bf9\u6bd4\u8f83\u81c3\u80bf\u548c\u5e9e\u5927\u3002<\/p>\n<p>2.uClibc \u4e00\u4e2a\u5c0f\u578b\u7684C\u8bed\u8a00\u6807\u51c6\u5e93\uff0c\u4e3b\u8981\u7528\u4e8e\u5d4c\u5165\u5f0f\u3002 \u5176\u6700\u5f00\u59cb\u8bbe\u8ba1\u7528\u4e8euClinux\uff08\u6ce8\uff1auClinux\u4e0d\u652f\u6301MMU\uff09\uff0c\u56e0\u6b64\u6bd4\u8f83\u9002\u7528\u4e8e\u5fae\u5904\u7406\u5668\u4e2d\u3002 \u5bf9\u5e94\u7684\uff0c\u6b64\u5904\u7684u\u610f\u601d\u662f\u03bc\uff0cMicro\uff0c\u5fae\u5c0f\u7684\u610f\u601d\u3002 uClibc\u7684\u7279\u70b9\uff1a (1)uClibc\u6bd4glibc\u8981\u5c0f\u5f88\u591a\u3002 (2)uClibc\u662f\u72ec\u7acb\u7684\uff0c\u4e3a\u4e86\u5e94\u7528\u4e8e\u5d4c\u5165\u5f0f\u7cfb\u7edf\u4e2d\uff0c\u5b8c\u5168\u91cd\u65b0\u5b9e\u73b0\u51fa\u6765\u7684\u3002\u548cglibc\u5728\u6e90\u7801\u7ed3\u6784\u548c\u4e8c\u8fdb\u5236\u4e0a\uff0c\u90fd\u4e0d\u517c\u5bb9\u3002<\/p>\n<p>3.EGLIBC EGLIBC = Embedded GLIBC EGLIBC\u662f\uff0c\uff08\u540e\u6765\uff09glibc\u7684\u539f\u521b\u4f5c\u7ec4\u7ec7FSF\u6240\uff08\u65b0\uff09\u63a8\u51fa\u7684\uff0cglibc\u7684\u4e00\u79cd\u53d8\u4f53\uff0c\u76ee\u7684\u5728\u4e8e\u5c06glibc\u7528\u4e8e\u5d4c\u5165\u5f0f\u7cfb\u7edf\u3002 EGLIBC\u7684\u76ee\u6807\u662f\uff1a (1)\u4fdd\u6301\u6e90\u7801\u548c\u4e8c\u8fdb\u5236\u7ea7\u522b\u7684\u517c\u5bb9\u4e8eGlibc \u6e90\u4ee3\u7801\u67b6\u6784\u548cABI\u5c42\u9762\u517c\u5bb9 \u5982\u679c\u771f\u6b63\u5b9e\u73b0\u4e86\u8fd9\u4e2a\u76ee\u6807\uff0c\u90a3\u610f\u5473\u7740\uff0c\u4f60\u4e4b\u524d\u7528glibc\u7f16\u8bd1\u7684\u7a0b\u5e8f\uff0c\u53ef\u4ee5\u76f4\u63a5\u7528eglibc\u66ff\u6362\uff0c\u800c\u4e0d\u9700\u8981\u91cd\u65b0\u7f16\u8bd1\u3002 \u8fd9\u6837\u5c31\u53ef\u4ee5\u590d\u7528\u4e4b\u524d\u7684\u5f88\u591a\u7684\u7a0b\u5e8f\u4e86\u3002 (2)\u964d\u4f4e(\u5185\u5b58)\u8d44\u6e90\u5360\u7528\/\u6d88\u8017 (3)\u4f7f\u66f4\u591a\u7684\u6a21\u5757\u4e3a\u53ef\u914d\u7f6e\u7684\uff08\u4ee5\u5b9e\u73b0\u6309\u9700\u88c1\u526a\u4e0d\u9700\u8981\u7684\u6a21\u5757\uff09 (4)\u63d0\u9ad8\u5bf9\u4e8e\u4ea4\u53c9\u7f16\u8bd1(cross-compilation)\u548c\u4ea4\u53c9\u6d4b\u8bd5(cross-testing)\u7684\u652f\u6301 Eglibc\u7684\u6700\u4e3b\u8981\u7279\u70b9\u5c31\u662f\u53ef\u914d\u7f6e\uff0c\u8fd9\u6837\u5bf9\u4e8e\u5d4c\u5165\u5f0f\u7cfb\u7edf\u4e2d\uff0c\u4f60\u6240\u4e0d\u9700\u8981\u7684\u6a21\u5757\uff0c\u6bd4\u5982NIS\uff0clocale\u7b49\uff0c\u5c31\u53ef\u4ee5\u88c1\u526a\u6389\uff0c\u4e0d\u628a\u5176\u7f16\u8bd1\u5230\u5e93\u4e2d\uff0c\u4f7f\u5f97\u964d\u4f4e\u751f\u6210\u7684\u5e93\u7684\u5927\u5c0f\u4e86\u3002 \u66f4\u591a\u7279\u70b9\uff0c\u53ef\u4ee5\u53bb\u770b\uff1aEglibc\u7684\u7279\u70b9 \u3010glibc, uClibc, Elibc\u7684\u6e0a\u6e90\/\u5386\u53f2\/\u533a\u522b\/\u8054\u7cfb\u3011 1. \u5199\u7a0b\u5e8f\uff0c\u9700\u8981\u7528\u5230\u5f88\u591ac\u8bed\u8a00\u7684\u5e93\u51fd\u6570\u3002\u6240\u6709\u7684\u5e93\u51fd\u6570\u52a0\u8d77\u6765\uff0c\u5c31\u662f\u5bf9\u5e94\u7684C\u8bed\u8a00\uff08\u6807\u51c6\uff09\u51fd\u6570\u5e93\u3002 2. \u76ee\u524d\u5728\u666e\u901aGNU\/Linux\u7cfb\u7edf\u4e2d\u6240\u7528\u7684C\u8bed\u8a00\u6807\u51c6\u5e93\uff0c\u53eb\u505aglibc\u3002\u5176\u529f\u80fd\u5f88\u5168\uff0c\u51fd\u6570\u5f88\u591a\uff0c\u4f46\u662f\u4ee3\u7801\u592a\u591a\uff0c\u7f16\u8bd1\u51fa\u6765\u7684\u51fd\u6570\u5e93\u7684\u5927\u5c0f\u4e5f\u5f88\u5927\uff0c\u5373\u8d44\u6e90\u5360\u7528\u4e5f\u5f88\u591a\u3002 3. \u800c\u5d4c\u5165\u5f0f\u7cfb\u7edf\u4e2d\uff0c\u4e5f\u9700\u8981C\u8bed\u8a00\u5199\u4ee3\u7801\u5b9e\u73b0\u7279\u5b9a\u529f\u80fd\uff0c\u4e5f\u9700\u8981\u7528\u5230C\u8bed\u8a00\u51fd\u6570\u5e93\uff0c\u4f46\u662f\u7531\u4e8e\u5d4c\u5165\u5f0f\u7cfb\u7edf\u4e2d\uff0c\u4e00\u822c\u8d44\u6e90\u6bd4\u8f83\u6709\u9650\uff0c\u6240\u4ee5\u4e0d\u9002\u5408\u76f4\u63a5\u4f7f\u7528\uff08\u592a\u5360\u7528\u8d44\u6e90\u7684\uff09gLibc\u3002 4. \u6240\u4ee5\u6709\u4eba\u5c31\u53c8\uff08\u6ca1\u6709\u53c2\u8003glibc\uff0c\u800c\u662f\u4ece\u5934\u5f00\u59cb\uff0c\uff09\u91cd\u65b0\u5b9e\u73b0\u4e86\u4e00\u4e2a\u7528\u4e8e\u5d4c\u5165\u5f0f\u7cfb\u7edf\u4e2d\u7684\uff0c\u4ee3\u7801\u91cf\u4e0d\u662f\u5f88\u5927\u7684\uff0c\u8d44\u6e90\u5360\u7528\u76f8\u5bf9\u8f83\u5c11\u7684\uff0cC\u8bed\u8a00\u51fd\u6570\u5e93\uff0c\u53eb\u505auClibc\u3002\u5e76\u4e14\uff0cuClibc\u4e0d\u652f\u6301MMU\uff08\u5185\u5b58\u7ba1\u7406\u5355\u5143\uff09\u3002 5. \u800c\u540e\u6765\uff0cglibc\u7684\u5f00\u53d1\u8005\uff0c\u53c8\u63a8\u51fa\u4e2aEmbedded glibc\uff0c\u7b80\u79f0eglibc\uff0c\u5176\u4e3b\u8981\u76ee\u7684\u4e5f\u662f\u5c06glibc\u7528\u4e8e\u5d4c\u5165\u5f0f\u9886\u57df\u3002 \u76f8\u5e94\u6700\u5927\u7684\u6539\u52a8\u5c31\u5728\u4e8e\uff0c\u628a\u66f4\u591a\u7684\u5e93\u51fd\u6570\uff0c\u6539\u4e3a\u53ef\u914d\u7f6e\u7684\uff0c\u8fd9\u6837\uff0c\u5982\u679c\u4f60\u7684\u5d4c\u5165\u5f0f\u7cfb\u7edf\u4e2d\u4e0d\u9700\u8981\u67d0\u4e9b\u51fd\u6570\uff0c\u5c31\u53ef\u4ee5\u88c1\u526a\u6389\uff0c\u4e0d\u628a\u8be5\u51fd\u6570\u7f16\u8bd1\u5230\u4f60\u7684eglibc\u5e93\u4e2d\uff0c\u4f7f\u5f97\u6700\u7ec8\u751f\u6210\u7684eglibc\u5e93\u7684\u5927\u5c0f\u53d8\u5c0f\uff0c\u6700\u7ec8\u7b26\u5408\u4f60\u7684\u5d4c\u5165\u5f0f\u7cfb\u7edf\u7684\u8981\u6c42\uff08\u4e0d\u80fd\u8d85\u8fc7\u4e00\u5b9a\u7684\u5927\u5c0f\uff09\uff0c\u8fd9\u6837\uff0c\u5c31\u5b9e\u73b0\u4e86\uff0c\u628aglibc\u5f15\u7528\u4e8e\u5d4c\u5165\u5f0f\u7cfb\u7edf\u4e2d\u7684\u76ee\u7684\u4e86\u3002 \u53ef\u4ee5\u7b80\u5355\u7684\u7406\u89e3\u4e3a\uff1a glibc\uff0cuClibc\uff0ceglibc\u90fd\u662fC\u8bed\u8a00\u51fd\u6570\u5e93\uff1a 1. uClibc\u662f\u5d4c\u5165\u5f0f\u7cfb\u7edf\u4e2d\u7528\u7684\uff0cglibc\u662f\u684c\u9762\u7cfb\u7edf\u7528\u7684 2. eglibc\u4e5f\u662f\u5d4c\u5165\u5f0f\u7cfb\u7edf\u4e2d\u7528\u7684\uff0c\u662fglibc\u7684\u5d4c\u5165\u5f0f\u7248\u672c\uff0c\u548cglibc\u5728\u6e90\u7801\u548c\u4e8c\u8fdb\u5236\u4e0a\u517c\u5bb9\u3002<\/p>\n<p>4.\u00a0Musl-libc \u00a0C\u8bed\u8a00\u6807\u51c6\u5e93Musl-libc\u9879\u76ee\u53d1\u5e03\u4e86<a href=\"http:\/\/www.musl-libc.org\/download.html\" target=\"_blank\"><u>1.0\u7248<\/u><\/a>\u3002Musl\u662f\u4e00\u4e2a\u8f7b\u91cf\u7ea7\u7684C\u6807\u51c6\u5e93\uff0c\u8bbe\u8ba1\u4f5c\u4e3aGNU C library (glibc)\u3001 uClibc\u6216Android Bionic\u7684\u66ff\u4ee3\u7528\u4e8e\u5d4c\u5165\u5f0f\u64cd\u4f5c\u7cfb\u7edf\u548c\u79fb\u52a8\u8bbe\u5907\u3002\u5b83\u9075\u5faaPOSIX 2008\u89c4\u683c\u548c C99 \u6807\u51c6\uff0c\u91c7\u7528MIT\u8bb8\u53ef\u8bc1\u6388\u6743\uff0c\u4f7f\u7528Musl\u7684<a href=\"http:\/\/wiki.musl-libc.org\/wiki\/Projects_using_musl\" target=\"_blank\"><u>Linux\u53d1\u884c\u7248\u548c\u9879\u76ee<\/u><\/a>\u5305\u62ecsabotage\uff0cbootstrap-linux\uff0cLightCube OS\u7b49\u7b49\u3002<\/p>\n<p>\u76ee\u524dopenwrt 15.05\u9ed8\u8ba4\u4f7f\u7528Musl-libc\u4e86\u3002\u3002\u3002bug\u5f88\u591a\u5440 CC\u5206\u652f\u8fd8\u662fuclibc<\/p>\n","protected":false},"excerpt":{"rendered":"<p>1.Glibc glibc = GNU C Library \u662fGNU\u9879\uff08GNU Project\uff09\u76ee\uff0c\u6240\u5b9e\u73b0\u7684  [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"class_list":["post-1051","post","type-post","status-publish","format-standard","hentry","category-linux-c"],"_links":{"self":[{"href":"https:\/\/www.kumouse.com\/index.php?rest_route=\/wp\/v2\/posts\/1051","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.kumouse.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.kumouse.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.kumouse.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.kumouse.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1051"}],"version-history":[{"count":1,"href":"https:\/\/www.kumouse.com\/index.php?rest_route=\/wp\/v2\/posts\/1051\/revisions"}],"predecessor-version":[{"id":1052,"href":"https:\/\/www.kumouse.com\/index.php?rest_route=\/wp\/v2\/posts\/1051\/revisions\/1052"}],"wp:attachment":[{"href":"https:\/\/www.kumouse.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1051"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.kumouse.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1051"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.kumouse.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1051"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}