{"id":207142,"date":"2025-07-08T08:09:00","date_gmt":"2025-07-08T00:09:00","guid":{"rendered":"https:\/\/server.hk\/cnblog\/207142\/"},"modified":"2025-07-08T08:09:00","modified_gmt":"2025-07-08T00:09:00","slug":"%e8%b0%83%e7%94%a8-syscall-%e5%87%bd%e6%95%b0%e6%97%b6%e5%87%ba%e7%8e%b0%e5%bc%82%e5%b8%b8","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/207142\/","title":{"rendered":"\u8c03\u7528 Syscall \u51fd\u6570\u65f6\u51fa\u73b0\u5f02\u5e38"},"content":{"rendered":"

<\/b> <\/p>\n

\u5f53\u524d\u4f4d\u7f6e\uff1a ><\/span> ><\/span> ><\/span> ><\/span> \u8c03\u7528 Syscall \u51fd\u6570\u65f6\u51fa\u73b0\u5f02\u5e38<\/span><\/p>\n

\u6765\u6e90\uff1astackoverflow<\/span>
\n2024-04-20 12:36:40<\/span>
\n<\/i>0\u6d4f\u89c8<\/span>
\n<\/i>\u6536\u85cf<\/span> <\/p>\n

\u5077\u5077\u52aa\u529b\uff0c\u6084\u65e0\u58f0\u606f\u5730\u53d8\u5f3a\uff0c\u7136\u540e\u60ca\u8273\u6240\u6709\u4eba\uff01\u54c8\u54c8\uff0c\u5c0f\u4f19\u4f34\u4eec\u53c8\u6765\u5b66\u4e60\u5566~\u4eca\u5929\u6211\u5c06\u7ed9\u5927\u5bb6\u4ecb\u7ecd\u300a\u8c03\u7528 Syscall \u51fd\u6570\u65f6\u51fa\u73b0\u5f02\u5e38\u300b<\/span>\uff0c\u8fd9\u7bc7\u6587\u7ae0\u4e3b\u8981\u4f1a\u8bb2\u5230<\/span>\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u4e0d\u77e5\u9053\u5927\u5bb6\u5bf9\u5176\u90fd\u6709\u591a\u5c11\u4e86\u89e3\uff0c\u4e0b\u9762\u6211\u4eec\u5c31\u4e00\u8d77\u6765\u770b\u4e00\u5427\uff01\u5f53\u7136\uff0c\u975e\u5e38\u5e0c\u671b\u5927\u5bb6\u80fd\u591a\u591a\u8bc4\u8bba\uff0c\u7ed9\u51fa\u5408\u7406\u7684\u5efa\u8bae\uff0c\u6211\u4eec\u4e00\u8d77\u5b66\u4e60\uff0c\u4e00\u8d77\u8fdb\u6b65\uff01<\/p>\n

\u95ee\u9898\u5185\u5bb9
\n <\/p>\n

\u6211\u6b63\u5728\u4f7f\u7528 go \u7684\u7cfb\u7edf\u8c03\u7528\u5305\u6765\u8c03\u7528\u7528 c++ \u7f16\u5199\u7684 dll\u3002 <\/p>\n

c++ \u65b9\u6cd5\u7b7e\u540d\u5982\u4e0b\u6240\u793a\u3002 <\/p>\n

init(int* buffer, int argc, char* argv[], const char* \u6587\u4ef6\u540d, const char* \u952e, const char* \u524d\u7f00, const char* \u7248\u672c)<\/code><\/p>\n

\u8fd9\u662f\u6211\u7528\u6765\u5728 go \u4e2d\u8c03\u7528\u4e0a\u8ff0\u65b9\u6cd5\u7684\u51fd\u6570\u3002<\/p>\n

func init(\n  buffer uintptr, \n  argscount int, \n  args []string, \n  filename string, \n  key string, \n  prefix string, \n  version string\n) uintptr {\n    \/\/ libhandle is handle to the loaded dll\n    methodaddress := getprocaddress(libhandle, \"init\")\n\n    status, _, err := syscall.syscall9(\n      methodaddress,\n      7,\n      buffer,\n      uintptr(unsafe.pointer(&argscount)),\n      uintptr(unsafe.pointer(&args)),\n      uintptr(unsafe.pointer(syscall.stringtoutf16ptr(filename))),\n      uintptr(unsafe.pointer(syscall.stringtoutf16ptr(key))),\n      uintptr(unsafe.pointer(syscall.stringtoutf16ptr(prefix))),\n      uintptr(unsafe.pointer(syscall.stringtoutf16ptr(version))),\n      0,\n      0)\n\n      fmt.println(err.error())\n\n      return status\n }<\/pre>\n
\u5f53\u6211\u8c03\u7528\u6b64\u65b9\u6cd5\u65f6\u51fa\u73b0\u6b64\u9519\u8bef\uff0c\u5e76\u4e14\u5bf9\u6b64\u6ca1\u6709\u4efb\u4f55\u60f3\u6cd5\u3002 <\/p>\n
Exception 0xc0000005 0x0 0x0 0x7fffe30bdb33\nPC=0x7fffe30bdb33\n\nsyscall.Syscall9(0x7fffe32db600, 0x7, 0x97db50, 0xc00007ff10, \n0xc00007ff70, 0xc000054180, 0xc0000541a0, 0xc0000541c0, 0xc0000541e0, \n0x0, ...)\n\nc:\/go\/src\/runtime\/syscall_windows.go:210 +0xf3\nmain.main()\n\n E:\/Path\/test.go:157 +0x2be\n rax     0x81fbf0\n rbx     0x1\n rcx     0x7ff804ad1310\n rdi     0x7ff10\n rsi     0xc00007ff70\n rbp     0x0\n rsp     0x81fbc0\n r8      0x0\n r9      0x7ff804ad0000\n r10     0xc00007ff00\n r11     0x81fbf0\n r12     0x7ff10\n r13     0xc00007ff70\n r14     0xc000054180\n r15     0x97db50\n rip     0x7fffe30bdb33\n rflags  0x10257\n cs      0x33\n fs      0x53\n gs      0x2b<\/pre>\n
 <\/p>\n
\u89e3\u51b3\u65b9\u6848<\/h2>\n
 <\/p>\n
\u8bbe\u7f6e<\/h2>\n
\u6240\u4ee5\uff0c\u57fa\u672c\u4e0a\uff0c\u4f60\u5f97\u5230\u7684\u6620\u5c04\u662f<\/p>\n
    \n
  1. \n
    int* \u7f13\u51b2\u533a <\/code> \u2192 buffer uintptr<\/code><\/p>\n<\/li>\n
  2. \n
    int argc<\/code> \u2192 unsafe.pointer(&argscount)<\/code>\uff0c\u5176\u4e2d &argscount<\/code> \u662f\u6307\u5411 int<\/code> \u7684\u6307\u9488<\/p>\n<\/li>\n
  3. \n
    char* argv[]<\/code> \u2192 unsafe.pointer(&args)<\/code>\uff0c\u5176\u4e2d args<\/code> \u662f []string<\/code><\/p>\n<\/li>\n
  4. \n
    const char* filename<\/code> \u2192 unsafe.pointer(syscall.stringtoutf16ptr(filename))<\/code><\/p>\n
    const char* key<\/code>\u3001const char* prefix<\/code>\u3001const char* version<\/code> \u2014 \u4e0e\u4e0a\u9762\u76f8\u540c\u3002<\/p>\n<\/li>\n<\/ol>\n
    \u95ee\u9898<\/h2>\n
    \u73b0\u5728\u8fd9\u6709\u4ec0\u4e48\u95ee\u9898\u3002<\/p>\n
      \n
    1. \n
      \u7981\u6b62\u5728\u51fd\u6570\u4e4b\u95f4\u4f20\u9012\u5305\u542b\u6d3b\u52a8 go \u5bf9\u8c61\u5730\u5740\u7684 uintptr<\/code> \u503c\u3002 \uff08\u7a0d\u540e\u8be6\u7ec6\u4ecb\u7ecd\u3002\uff09<\/p>\n<\/li>\n
    2. \n
      \u60a8\u5c06 argscount<\/code> \u51fd\u6570\u53c2\u6570\u7684\u5730\u5740\u4f20\u9012\u7ed9 argc<\/code>\u3002\u5982\u679c\u5c06\u5176\u89e3\u91ca\u4e3a\u8ba1\u6570\uff0c\u5219\u50cf amd64\/windows \u8fd9\u6837\u7684\u5178\u578b\u5546\u54c1\u5e73\u53f0\/\u64cd\u4f5c\u7cfb\u7edf\u4e0a\u7684\u5730\u5740\u662f\u4e00\u4e2a\u6781\u5176\u5de8\u5927\u7684\u503c\u3002<\/p>\n
      \u6211\u6562\u6253\u8d4c\uff0c\u5f53\u8be5\u51fd\u6570\u5c1d\u8bd5\u4ece argv<\/code> \u8bfb\u53d6\u5927\u91cf\u5143\u7d20\u65f6\uff0c\u8be5\u51fd\u6570\u4f1a\u5d29\u6e83\uff0c\u5bfc\u81f4\u5b83\u8bfb\u53d6\u60a8\u7684\u8fdb\u7a0b\u672a\u6620\u5c04\u7684\u5185\u5b58\u3002<\/p>\n<\/li>\n
    3. \n
      \u8fd9\u91cc\u6709\u4e24\u4e2a\u95ee\u9898\uff1a<\/p>\n
        \n
      1. \n
        \u5c06\u5207\u7247\u503c\u7684\u5730\u5740\u4f5c\u4e3a\u53c2\u6570\u4f20\u9012\uff0c\u671f\u671b\u8be5\u5207\u7247\u7684\u7b2c\u4e00\u4e2a\u5143\u7d20\u7684\u5730\u5740\u662f\u9519\u8bef\u7684\u3002<\/p>\n
        \u8fd9\u662f\u56e0\u4e3a\u5207\u7247\u503c\uff08\u76ee\u524d\uff0c\u5728\u60a8\u5e94\u8be5\u4f7f\u7528\u7684\u201c\u53c2\u8003\u201dgo \u5b9e\u73b0\u4e2d\uff09\u662f\u4e00\u4e2a struct<\/code> \uff0c\u5177\u6709 3 \u4e2a\u5b57\u6bb5\uff1a\u5e95\u5c42\u6570\u636e\u6570\u7ec4\u7684\u5730\u5740\u3001\u8be5\u6570\u7ec4\u4e2d\u5141\u8bb8\u7684\u5143\u7d20\u6570\u91cf\u4f7f\u7528\u7684\u4ee5\u53ca\u8be5\u6570\u7ec4\u4e2d\u6b64\u7c7b\u5143\u7d20\u7684\u603b\u6570\uff0c\u5728\u5bf9\u5207\u7247\u503c\u8c03\u7528\u65f6\uff0cappend<\/code> \u51fd\u6570\u53ef\u4ee5\u5728\u4e0d\u91cd\u65b0\u5206\u914d\u7684\u60c5\u51b5\u4e0b\u4f7f\u7528\u8fd9\u4e9b\u5143\u7d20\u3002<\/p>\n
        \u5f53\u60a8\u6709 args []string<\/code> \u5e76\u6267\u884c &args<\/code> \u65f6\uff0c\u60a8\u5c06\u83b7\u5f97\u8be5\u7ed3\u6784\u7684\u5730\u5740\uff0c\u800c\u4e0d\u662f\u8be5\u5207\u7247\u7684\u7b2c\u4e00\u4e2a\u5143\u7d20\u7684\u5730\u5740\u3002<\/p>\n
        \u8981\u6267\u884c\u540e\u8005\uff0c\u8bf7\u4f7f\u7528 &args[0]<\/code>\u3002<\/p>\n<\/li>\n
      2. \n
        \u5728 go \u4e2d\uff0c\u5b57\u7b26\u4e32\uff08\u901a\u5e38\u662f\u8fd9\u6837\uff0c\u6211\u4eec\u5047\u8bbe\u662f\u8fd9\u6837\uff09\u5305\u542b\u7f16\u7801\u4e3a utf-8 \u7684\u5b57\u7b26\u3002\u8fd9\u901a\u5e38\u4e0d\u662f windows \u539f\u751f c++ \u4ee3\u7801\u5728\u8868\u793a\u9700\u8981 char *<\/code> \u65f6\u671f\u671b\u5904\u7406\u7684\u5185\u5bb9\u3002<\/p>\n
        \u6211\u7684\u731c\u6d4b\uff0c\u4f60\u9700\u8981\u9996\u5148\u4e3a argv<\/code> \u6784\u5efa\u4e00\u4e2a\u5408\u9002\u7684\u4e1c\u897f\uff0c \u7c7b\u4f3c\u7684\u4e1c\u897f<\/p>\n
        argv := make([]unsafe.pointer, 0, len(args))\nfor i, s := range args {\n    argv[i] = unsafe.pointer(syscall.stringtoutf16ptr(s))\n}\n<\/pre>\n
        \u7136\u540e\u5c06 &argv[0]<\/code> \u4f20\u9012\u7ed9\u88ab\u8c03\u7528\u8005\u3002<\/p>\n
        \u4f46\u8bf7\u53c2\u9605\u4e0b\u9762\u7684 syscall.stringtoutf16ptr()<\/code>\u3002<\/p>\n<\/li>\n<\/ol>\n<\/li>\n
      3. \n
        \u60a8\u6b63\u5728\u505a\u7684\u5c06\u5b57\u7b26\u4e32\u6570\u636e\u4f20\u9012\u7ed9\u5177\u6709 const char*<\/code> \u7c7b\u578b\u7684\u5176\u4f59\u53c2\u6570\u7684\u51c6\u5907\u5de5\u4f5c\u4f3c\u4e4e\u662f\u6b63\u786e\u7684\uff0c\u4f46\u524d\u63d0\u662f\u88ab\u8c03\u7528\u8005\u786e\u5b9e\u610f\u5473\u7740\u5176 char<\/code> \u662f 16 \u4f4d\u6574\u6570\u3002 <\/p>\n
        \u6362\u53e5\u8bdd\u8bf4\uff0c\u7528\u4e8e\u7f16\u8bd1\u8be5\u5e93\u7684\u6e90\u4ee3\u7801\u548c\u5de5\u5177\u94fe<\/em>\u5fc5\u987b\u786e\u4fdd char<\/code> \u786e\u5b9e\u662f \u3002<\/p>\n
        \u5982\u679c\u662f\uff0c\u90a3\u4e48\u4f60\u6240\u505a\u7684\u5e94\u8be5\u6ca1\u95ee\u9898\uff1b\u5426\u5219\u5c31\u4e0d\u662f\u3002\u60a8\u5e94\u8be5\u9a8c\u8bc1\u8fd9\u4e00\u70b9\u3002<\/p>\n<\/li>\n<\/ol>\n
        \u5173\u4e8e\u8de8\u8868\u8fbe\u5f0f\u4f20\u9012 uintptr<\/code>s \u7684\u8bf4\u660e<\/h3>\n
        go \u5177\u6709\u5783\u573e\u6536\u96c6\u529f\u80fd\uff0c\u56e0\u6b64\u5b83\u7684\u8fd0\u884c\u65f6\u5fc5\u987b\u77e5\u9053\u6307\u5411\u6240\u6709\u5f53\u524d\u6d3b\u52a8\u5bf9\u8c61\u7684\u6240\u6709\u6307\u9488\u3002\u53ea\u8981\u5b58\u5728\u4e00\u4e2a\u53d8\u91cf\uff0c\u5176\u4e2d\u5305\u542b\u6307\u5411\u7a0b\u5e8f\u8fd0\u884c\u65f6\u5206\u914d\u7684\u5185\u5b58\u5757\u7684\u6307\u9488\uff0c\u8be5\u5757\u5c31\u4e0d\u4f1a\u88ab\u5783\u573e\u6536\u96c6\u3002<\/p>\n
        unsafe.pointer<\/code> \u503c\u7b97\u4f5c\u5bf9\u5185\u5b58\u5757\u7684\u6b63\u786e\u5f15\u7528\uff0c\u4f46 uintptr<\/code> \u503c\u5219\u4e0d\u7136\u3002<\/strong><\/em>\u8fd9\u610f\u5473\u7740\u5f53\u4ee3\u7801<\/p>\n
        p := new(sometype)\nu := uintptr(unsafe.pointer(&p))\nfoo(u)\nreturn\n<\/pre>\n
        \u8fd0\u884c\u65f6\uff0c\u4e00\u65e6 p<\/code> \u88ab\u5206\u914d\u4e86\u5176\u5730\u5740\uff0cgc \u5c31\u53ef\u4ee5\u81ea\u7531\u5730\u56de\u6536\u7531 p<\/code> \u5206\u914d\u7684\u5bf9\u8c61 – \u4ec5\u4ec5\u662f\u56e0\u4e3a p<\/code> \u662f\u5bf9\u8be5\u5bf9\u8c61\u7684\u552f\u4e00\u5f15\u7528\uff0c\u800c u<\/code> \u4e0d\u662f\u3002<\/p>\n
        \u73b0\u5728\u8003\u8651\u53c2\u8003 go \u5b9e\u73b0\u4e2d\u7684 gc \u4e0e\u60a8\u7684\u7a0b\u5e8f\u4ee3\u7801\u540c\u65f6\u8fd0\u884c\u3002 \u8fd9\u610f\u5473\u7740\u5f53 foo<\/code> \u8fd0\u884c\u65f6\uff0cgc \u4e5f\u53ef\u80fd\u4f1a\u6267\u884c\uff0c\u5e76\u4e14\u5b83\u53ef\u80fd\u4f1a\u4ece foo<\/code> \u7684\u811a\u4e0b\u626b\u63cf\u60a8\u7684 sometype<\/code> \u5b9e\u4f8b\u3002<\/p>\n
        \u4f5c\u4e3a\u6b64\u4e00\u822c\u89c4\u5219\u7684\u4e00\u4e2a\u4f8b\u5916\uff0cgo \u7f16\u8bd1\u5668\u4fdd\u8bc1\u540c\u4e00\u8bed\u8a00\u8868\u8fbe\u5f0f<\/em>\u4e2d\u53d1\u751f\u7684\u6240\u6709 uintptr(unsafe.pointer)<\/code> \u7c7b\u578b\u8f6c\u6362\u4e0d\u53d7 gc \u7684\u5f71\u54cd\u3002\u56e0\u6b64\uff0c\u4ee5\u6211\u4eec\u4e4b\u524d\u7684\u793a\u4f8b\u4e3a\u4f8b\uff0c\u8fd9\u6837\u505a\u5c31\u53ef\u4ee5\u4e86<\/p>\n
        foo(uintptr(unsafe.pointer(new(sometype)))\nreturn\n<\/pre>\n
        \u548c<\/p>\n
        p := new(someType)\nv := unsafe.Pointer(&p)\nfoo(uintptr(v))\nreturn\n<\/pre>\n
        \u56e0\u4e3a\u5230 uintptr<\/code> \u7684\u7c7b\u578b\u8f6c\u6362\u53d1\u751f\u5728\u5355\u4e2a\u8868\u8fbe\u5f0f\u4e2d\u2014\u2014\u8fd9\u662f\u4e00\u4e2a\u51fd\u6570\u8c03\u7528\u3002<\/p>\n
        \u56e0\u6b64\uff0c\u60a8\u4e0d\u5f97\u5c06\u6307\u9488\u4f5c\u4e3a uintptr<\/code>s \u4f20\u9012\u7ed9 go \u5bf9\u8c61\uff0c\u9664\u975e<\/em>\u5b83\u4eec\u5305\u542b\u4ece\u201cc \u7aef\u201d\u83b7\u53d6\u7684\u6307\u9488\u3002<\/p>\n
        \u597d\u4e86\uff0c\u672c\u6587\u5230\u6b64\u7ed3\u675f\uff0c\u5e26\u5927\u5bb6\u4e86\u89e3\u4e86\u300a\u8c03\u7528 Syscall \u51fd\u6570\u65f6\u51fa\u73b0\u5f02\u5e38\u300b\uff0c\u5e0c\u671b\u672c\u6587\u5bf9\u4f60\u6709\u6240\u5e2e\u52a9\uff01\u5173\u6ce8\u516c\u4f17\u53f7\uff0c\u7ed9\u5927\u5bb6\u5206\u4eab\u66f4\u591aGolang\u77e5\u8bc6\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
        \u5f53\u524d\u4f4d\u7f6e\uff1a > > ...<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4925],"tags":[],"class_list":["post-207142","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/207142","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=207142"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/207142\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=207142"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=207142"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=207142"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}