{"id":1044,"date":"2012-12-09T22:50:01","date_gmt":"2012-12-09T14:50:01","guid":{"rendered":"http:\/\/blog.dynox.cn\/?p=1044"},"modified":"2012-12-09T23:15:41","modified_gmt":"2012-12-09T15:15:41","slug":"%e4%bb%8e_chkstk%e8%af%b4%e8%b5%b7%ef%bc%8c%e8%b0%88%e8%b0%88%e7%94%a8%e6%88%b7%e6%a0%88%e7%9a%84%e7%ae%a1%e7%90%86","status":"publish","type":"post","link":"https:\/\/blog.dynox.cn\/?p=1044","title":{"rendered":"\u4ece_chkstk\u8bf4\u8d77\uff0c\u8c08\u8c08\u7528\u6237\u6808\u7684\u7ba1\u7406"},"content":{"rendered":"

\u4e0a\u5468\u5728XP\u7cfb\u7edf\u4e0a\u6d4b\u8bd5\u4e00\u4e2a\u9a71\u52a8\u7684\u65f6\u5019\uff0c\u53d1\u73b0\u9a71\u52a8\u52a0\u8f7d\u4e0d\u4e0a\uff0c\u201cnet start\u201d\u547d\u4ee4\u53ea\u662f\u7ed9\u51fa\u4e00\u4e2a\u65e0\u610f\u4e49\u7684\u9519\u8bef\u4ee3\u7801\uff0c\u9a71\u52a8\u7684DriverEntry()\u5165\u53e3\u7a0b\u5e8f\u8fd8\u6ca1\u6709\u5f97\u5230\u673a\u4f1a\u8fd0\u884c\u3002<\/font><\/p>

\u521d\u6b65\u6000\u7591\u662f\u5f15\u5165\u51fd\u6570\u7684\u95ee\u9898\uff0c\u7528WDK\u5de5\u5177Depends.exe\u67e5\u770b\u4e86\u4e00\u4e0b\u9a71\u52a8\u6587\u4ef6\uff0c\u679c\u7136\u662f\u7531\u4e8e_chkstk\u51fd\u6570\u65e0\u6cd5\u89e3\u6790\u6240\u5bfc\u81f4\u3002<\/p>

_chkstk\u662f\u4e2a\u5fae\u8f6fC\u7f16\u8bd1\u5668\u7684\u8f85\u52a9\u5e93\u51fd\u6570\uff0cMSDN\u4e0a\u5bf9\u5176\u4ecb\u7ecd\u5341\u5206\u7b80\u7565\uff1a<\/p>

_chkstk Routine<\/b> is a helper routine for the C compiler. For x86 compilers, _chkstk Routine<\/b> is called when the local variables exceed 4096 bytes; for x64 compilers it is 8K.<\/p>

\u5f53\u7f16\u8bd1\u5668\u5bdf\u89c9\u5230\u5c40\u90e8\u53d8\u91cf\u592a\u5927\u8d85\u8fc7\u9650\u503c\u65f6\uff08X86\u7cfb\u7edf\u9650\u503c\u662f4K\uff0cX64t\u7cfb\u7edf\u4e0a\u662f8K\uff09, \u7f16\u8bd1\u5668\u4f1a\u81ea\u52a8\u63d2\u5165_chkstk\u8fd9\u4e2a\u51fd\u6570\u4ee5\u4fdd\u8bc1\u6808\u7a7a\u95f4\u6240\u4f7f\u7528\u9875\u9762\u5728\u5185\u5b58\u4e2d\u3002<\/p>

\u95ee\u9898\u662f\u53d1\u73b0\u4e86\uff0c\u4f46\u8981\u67e5\u51fa\u6765\u7a76\u7adf\u5728\u54ea\u4e2a\u51fd\u6570\u4e2d\u8fd8\u662f\u8981\u8d39\u4e9b\u5fc3\u601d\u7684\u3002\u4ece\u7528\u6237\u5c42\u79fb\u690d\u8fc7\u6765\u4e0d\u5c11\u4ee3\u7801\uff0c\u57fa\u672c\u9501\u5b9a\u95ee\u9898\u51fa\u5728\u5176\u4e2d\uff0c\u4f46\u5982\u679c\u4e00\u4e2a\u51fd\u6570\u4e00\u4e2a\u51fd\u6570\u5bfb\u627e\u5b9e\u5728\u662f\u4e2a\u4e0d\u8ba8\u5de7\u7684\u7b28\u529e\u6cd5\uff0c\u4e5f\u4e0d\u7b26\u5408\u7a0b\u5e8f\u4eba\u7684\u4e00\u8d2f\u98ce\u683c\uff0c\u4fbf\u7528IDA\u53cd\u7f16\u8bd1\u9a71\u52a8sys\u6587\u4ef6\uff0c\u4e8e\u6c47\u7f16\u4ee3\u7801\u4e2d\u641c\u7d22_chkstk\u5b57\u4e32\uff0c\u76f4\u63a5\u9501\u5b9a\u51fa\u4e86\u95ee\u9898\u51fd\u6570\u3002\u6b64\u51fd\u6570\u6240\u4f7f\u7528\u7684\u4e00\u4e2a\u7ed3\u6784\u4f53\u4e2d\u5b9a\u4e49\u4e86\u8d85\u5927\u6570\u7ec4\uff0c\u5bf9\u6808\u7684\u8d85\u5e38\u4f7f\u7528\u5728\u5185\u6838\u4e2d\u662f\u76f8\u5f53\u5371\u9669\u7684\u3002<\/p>

\u89e3\u51b3\u529e\u6cd5\u5f88\u7b80\u5355\uff0c\u76f4\u63a5\u5c06\u6b64\u7ed3\u6784\u7684\u5b9a\u4e49\u653e\u5728\u4e00\u4e2a\u4ece\u5185\u5b58\u5206\u914d\u7684\u7ed3\u6784\u4e2d\u5373\u53ef\u3002\u95ee\u9898\u867d\u5df2\u89e3\u51b3\uff0c\u4f46\u5bf9\u4e8eDDK\u4e2d\u6709\u5173_chkstk\u7684\u63cf\u8ff0\uff0c\u53ca\u5176\u76f8\u5173\u7684\u7591\u95ee\u4e00\u76f4\u8ba9\u6211\u89c9\u5f97\u56f0\u6270\uff0c\u6bd4\u5982\uff0c\u4e3a\u4ec0\u4e48X86\u4e0a\u662f4K\uff0c\u800cAMD64\u67b6\u6784\u4e0a\u53ef\u4ee5\u662f8K\u3002<\/p>

\u8fd9\u4e24\u5929\u7ec8\u4e8e\u6709\u4e86\u65f6\u95f4\uff0c\u53ef\u4ee5\u5f7b\u5e95\u5730\u4e86\u7ed3\u8fd9\u4e2a\u7591\u95ee\u4e86\u3002<\/p>

\u8981\u60f3\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0c\u8fd8\u8981\u5148\u4ece\u7528\u6237\u6808\u7684\u5206\u914d\u5f00\u59cb\u3002\u4ee5ReactOS\u4ee3\u7801\u4e3a\u4f8b\uff0c\u5f53\u7ebf\u7a0b\u521b\u5efa\u65f6\uff0cCreateThread()\u4f1a\u8c03\u7528BasepCreateStack()\u6765\u521b\u5efa\u7528\u6237\u6808\uff0c\u5177\u4f53\u53ef\u4ee5\u53c2\u89c1ReactOS\u6e90\u7801\uff1a
~\/ReactOS\/lib\/kernel32\/misc\/utils.c\u3002<\/p>

BasepCreateStack()\u51fd\u6570\u4e3b\u8981\u505a\u4e09\u4ef6\u4e8b\uff1a<\/p>

  1. 1\uff0c\u5206\u914d\u6808\u7a7a\u95f4\u6240\u9700\u7684\u865a\u62df\u5185\u5b58\uff0c\u5927\u5c0f\u4e3aStack Reserve Size <\/li>
  2. 2\uff0c\u6839\u636eStack Commit Size\u9501\u5b9a\u5185\u5b58\u9875\u9762\uff0c\u5982\u679cStack Commit Size\u5c0f\u4e8eStack Reserve Size\u7684\u8bdd\uff0c\u9700\u8981\u589e\u52a0\u4e00\u4e2aPage\uff0c\u8fd9\u4e2a\u989d\u5916\u7533\u8bf7\u7684Page\u7528\u4f5cGuard Page\u4e4b\u7528\u3002 <\/li>
  3. 3\uff0c\u5c06\u6808\u5e95\u90e8\u7684Page\u8bbe\u5b9a\u4e3aGuard Page\u3002 <\/li> <\/ol>

    \u5f53\u7528\u6237\u6808\u88ab\u7528\u5c3d\u65f6\uff0c\u4f1a\u8bbf\u95ee\u5230\u6808\u5e95\u90e8\u7684Guard Page\u3002\u800c\u5bf9Guard Page\u7684\u4efb\u4f55\u8bbf\u95ee\u90fd\u4f1a\u5bfc\u81f4Page Fault\u7684\u53d1\u751f\u3002Page Fault\u5904\u7406\u51fd\u6570MmAccessFault()\u53ef\u4ee5\u5206\u6790\u51fa\u6b64\u6b21Page Fault\u662f\u7531Guard Page\u5bfc\u81f4\uff0c\u4fbf\u4f1a\u9ed8\u8ba4\u7531\u7528\u6237\u6808\u5904\u7406\u7a0b\u5e8fMiCheckForUserStackOverflow()\u6765\u5904\u7406\u3002\u5982\u679c\u7528\u6237\u6808\u5e76\u6ca1\u6709\u6ea2\u51fa\u7684\u8bdd\uff0c\u5373Stack Commit Size\u5c0f\u4e8eStack Reserve Size\u7684\u60c5\u51b5\uff0cMiCheckForUserStackOverflow()\u4f1a\u81ea\u52a8\u5411\u4e0b\u6269\u5c55\u6808\u7a7a\u95f4\uff0c\u6269\u5c55\u5927\u5c0f\u4e3aGUARD_PAGE_SIZE\u3002 GUARD_PAGE_SIZE\u9488\u5bf9\u4e0d\u540c\u7684CPU\u67b6\u6784\u6709\u4e0d\u540c\u7684\u5b9a\u4e49\uff1a
    X64:  #define GUARD_PAGE_SIZE   (PAGE_SIZE * 2)
    X86:  #define GUARD_PAGE_SIZE   PAGE_SIZE<\/p>

    \u8fd9\u91cc\u4fbf\u89e3\u91ca\u4e86\u4e3a\u4ec0\u4e48X86\u7cfb\u7edf\u4e0a\u7684\u9650\u5236\u662f4K(\u5373PAGE_SIZE)\uff0c\u800cX64\u4e0a\u5374\u4e3a8K\u7684\u539f\u56e0\u3002<\/p>

    \u8bf4\u5230\u6b64\u5904\uff0c\u8be5\u662f\u89e3\u7b54_chkstk()\u5012\u5e95\u662f\u5e72\u4ec0\u4e48\u7684\u65f6\u5019\u4e86\u3002Visual Studio\u4e2d\u6709_chkstk\u7684\u6e90\u7801\uff0c\u4ee5x86\u4e3a\u4f8b\uff1a<\/p>

    \u8f93\u5165\u53c2\u6570eax\u662f\u6240\u9700\u5806\u6808\u5927\u5c0f\uff08\u5b57\u8282\uff09
    labelP  _chkstk,       PUBLIC<\/p>

            push    ecx                          ; save ecx
            cmp     eax,_PAGESIZE_     ; more than one page requested?
            lea     ecx,[esp] + 8           ;   compute new stack pointer in ecx
                                                       ;   correct for return address and
                                                       ;   saved ecx
            jb      short lastpage           ; no<\/p>

    ;------------<\/p>

    probepages:
            sub     ecx,_PAGESIZE_          ; yes, move down a page
            sub     eax,_PAGESIZE_          ; adjust request and...<\/p>

            test    dword ptr [ecx],eax     ; ...probe it  (\u5982\u679c\u662fguard page\uff0c\u521a\u4f1a\u5bfc\u81f4page fault\uff0c\u6700\u7ec8\u7528\u6237\u6808
                                                            ;  \u5c06\u5411\u4e0b\u6269\u5c55\u4e00\u4e2a\u9875\u9762)<\/p>

            cmp     eax,_PAGESIZE_          ; more than one page requested?
            jae     short probepages          ; no<\/p>

    lastpage:
            sub     ecx,eax                  ; move stack down by eax
            mov     eax,esp                 ; save current tos and do a...<\/p>

            test    dword ptr [ecx],eax     ; ...probe in case a page was crossed
                                                            ;  \u8c03\u7528\u51fd\u6570\u5c06\u8981\u8bbf\u95ee\u7684\u5806\u6808\u5e95\u90e8 \uff0c\u5982\u679c\u6b64\u9875\u9762\u4e3aguard page\uff0c\u540c
                                                            ;  \u6837\u4f1a\u5bfc\u81f4\u7528\u6237\u6808\u7684\u5411\u4e0b\u5ef6\u4f38<\/p>

            mov     esp,ecx                        ; set the new stack pointer
                                                            ; \u5411\u4e0b\u66f4\u6539\u6808\u6307\u9488\uff0c\u5176\u4e0a\u76f4\u5230\u539fESP\u7684\u6808\u7a7a\u95f4\u4e3a\u8c03\u7528\u51fd\u6570\u5c40\u90e8\u53d8\u91cf<\/p>

            mov     ecx,dword ptr [eax]     ; recover ecx
            mov     eax,dword ptr [eax + 4] ; recover return address
                                                                ; \u5c06\u8fd4\u56de\u5730\u5740(\u8c03\u7528\u51fd\u6570\u4e2d)\u653e\u5165eax<\/p>

            push    eax                     ; prepare return address
                                                  ; \u5c06\u8fd4\u56de\u5730\u5740(\u8c03\u7528\u51fd\u6570\u4e2d)\u653e\u5165\u5f53\u524d\u6808\u4e2d\uff0c\u51c6\u5907\u8fd4\u56de<\/p>

                                                  ; ...probe in case a page was crossed
            ret<\/p>

            end<\/p>

    _chkstk()\u7684\u4e3b\u8981\u4f5c\u7528\u662f\u4fdd\u8bc1\u6808\u5411\u4e0b\u8fde\u7eed\u7684\u751f\u957f\u3002\u5982\u679c\u6ca1\u6709_chkstk()\uff0c\u5f53\u5c40\u90e8\u53d8\u91cf\u592a\u591a\u5e76\u8d85\u8fc7guard page\u4e0b\u6cbf\u65f6\uff0c\u82e5\u518d\u6709\u538b\u6808\u64cd\u4f5c\uff0c\u5c06\u4f1a\u5bfc\u81f4Access violation\u9519\u8bef\u3002\u56e0\u4e3a\u6b64\u65f6\u5806\u6808\u5185\u5b58\u9875\u9762\u65e0\u6548\uff0c\u538b\u6808\u76f4\u63a5\u5c06\u5bfc\u81f4page fault\u7684\u53d1\u751f\uff0c\u800cpage fault\u5904\u7406\u7a0b\u5e8f\u56e0\u4e0d\u80fd\u8bc6\u522b\u6b64fault\u7684\u53d1\u751f\u539f\u56e0\u4ece\u800c\u4e0d\u80fd\u505a\u51fa\u6b63\u786e\u5224\u65ad\u548c\u6709\u6548\u5904\u7406\u3002<\/font><\/p>

    \u76f8\u5bf9\u7528\u6237\u5c42\uff0c\u5185\u6838\u7a0b\u5e8f\u7684\u5904\u7406\u5219\u76f8\u5f53\u7b80\u5355\uff0c\u5c31\u5982Win7\u5185\u6838\u4e2d_chkstk\u5b9e\u9645\u4e0a\u5c31\u662f\u4e2a\u7a7a\u51fd\u6570\u3002\u5176\u539f\u56e0\u5c31\u662f<\/font>\u5185\u6838\u7ebf\u7a0b\u7684\u6808\u7a7a\u95f4\u662f\u56fa\u5b9a\u7684\u3002\u5176\u53d6\u503c\u9488\u5bf9X86\u53caX64\u67b6\u6784\u4ea6\u6709\u6240\u4e0d\u540c\uff1a
    X64\uff1a #define KERNEL_STACK_SIZE 0x6000   \/* 6\u4e2a\u5185\u5b58\u9875\u9762 *\/
    X86\uff1a #define KERNEL_STACK_SIZE 12288    \/* 3\u4e2a\u5185\u5b58\u9875\u9762 *\/<\/font><\/p>

    \u5185\u6838\u4e2d\u6808\u8d44\u6e90\u975e\u5e38\u7d27\u7f3a\uff0c\u5e76\u9a71\u52a8\u7a0b\u5e8f\u7684\u7f16\u5199\u6709\u8f83\u9ad8\u7684\u8981\u6c42\uff0c\u7279\u522b\u662f\u6709\u9012\u5f52\u7684\u60c5\u51b5\u4e0b\uff0c\u4e00\u5b9a\u8981\u6ce8\u610f\u5d4c\u5957\u7684\u5c42\u6570\uff0c\u5426\u5219\u5f88\u5bb9\u6613\u6536\u5230M$\u53d1\u6765\u7684\u84dd\u5c4f\u3002<\/font><\/p>

    Windows\u5185\u6838\u4e2d\u5176\u5b9e\u8fd8\u6709\u4e00\u79cd\u5927\u5806\u6808\u673a\u5236\uff0c\u4ee5\u786e\u4fdd\u4e00\u4e9b\u5bf9\u5806\u6808\u8f83\u9ad8\u6d88\u8017\u7684\u7279\u6b8a\u60c5\u51b5\u80fd\u591f\u5f97\u5230\u6ee1\u8db3\uff0c\u4f46\u8fd9\u90e8\u5206\u5b8c\u5168\u662f\u9ed1\u7bb1\uff0c\u5bf9\u7528\u6237\u4e0d\u53ef\u89c1\uff0c\u4e0d\u662f\u5e38\u89c1\u60c5\u51b5\uff0c\u6b64\u5904\u4e0d\u518d\u591a\u8ff0\u3002<\/font><\/p>

    \u53c2\u8003\u8d44\u6599\uff1a
    1, http:\/\/support.microsoft.com\/kb\/100775\/en<\/a>
    2,     http:\/\/msdn.microsoft.com\/en-us\/library\/ms648426(v=vs.85).aspx<\/a>
    3,     http:\/\/www.reactos.org<\/a>  ReactOS\u6e90\u7801<\/p><\/div>","protected":false},"excerpt":{"rendered":"

    \u4e0a\u5468\u5728XP\u7cfb\u7edf\u4e0a\u6d4b\u8bd5\u4e00\u4e2a\u9a71\u52a8\u7684\u65f6\u5019\uff0c\u53d1\u73b0\u9a71\u52a8\u52a0\u8f7d\u4e0d\u4e0a\uff0c\u201cnet start\u201d\u547d\u4ee4\u53ea\u662f\u7ed9\u51fa\u4e00\u4e2a\u65e0\u610f\u4e49\u7684\u9519\u8bef\u4ee3\u7801\uff0c […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0,"footnotes":""},"categories":[9],"tags":[463,465,466,464,394],"views":42164,"_links":{"self":[{"href":"https:\/\/blog.dynox.cn\/index.php?rest_route=\/wp\/v2\/posts\/1044"}],"collection":[{"href":"https:\/\/blog.dynox.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.dynox.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.dynox.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.dynox.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1044"}],"version-history":[{"count":2,"href":"https:\/\/blog.dynox.cn\/index.php?rest_route=\/wp\/v2\/posts\/1044\/revisions"}],"predecessor-version":[{"id":1048,"href":"https:\/\/blog.dynox.cn\/index.php?rest_route=\/wp\/v2\/posts\/1044\/revisions\/1048"}],"wp:attachment":[{"href":"https:\/\/blog.dynox.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1044"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.dynox.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1044"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.dynox.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1044"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}