From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from sonic306-21.consmr.mail.ir2.yahoo.com (sonic306-21.consmr.mail.ir2.yahoo.com [77.238.176.207]) by sourceware.org (Postfix) with ESMTPS id 24294385B834 for ; Wed, 25 Mar 2020 00:44:40 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org 24294385B834 X-YMail-OSG: _mV0QEgVM1lTNPFUH8wGmFnrzpeWOmEXmf_64Dsey_NIH6Kb2oJBIlPyURSfXaq 3INI99lOVsdtHRYDezqMANN8e9Fmti4yC37YulaxQ2G2N5gbrp7PmE6PvPDTM_.uoEDHSxlAiUzp 0YvLEv9EVDndLXzwrD1l44M6XpkDfSr4lraXSIr8IB3sFZt1Aqgdl5wiHn6x4i.oNU_jObm_viB0 pBQc08IhtX5FZ.QQUxk0SK8AWeFmccxUbDjpahQJH6v9IBEy6vTNmEvg9NhvV2tZU2OeFsOm1UxH Cc.Xdl8MAYfbhnEc13Ka.ey3l2vlaUNRvQiA5NjtUBUWaTcOQjaW8q7ZhitRbbM0EvQJlgbWrg.K YWSYEM514kzQnsUfwowyeRbY3bGxrrPwxCw21FVfN7FtJsCC5Pqvt7iZ8H00QUPEd_EWA8ZRvod_ .1Qo2OCB9QcI9ICv1KjSmq2smcYlITOpzOg6Wtp5TRqCt8iFUCJvC3N2tTogUCYhcc6aqsLL_oVn yL8SkGKmUmI2pYvv2HvQ0hyk62npDyfSazL.UW3QkkwKEx2Jo36ClqSIPD9PPhgFQVFaLn6hCn8r Lb96lFMI6xsqMdSIWA2wu6vIsvoA34ChI8XZ64.tOtROI6mT7.68kjbvzhAZz0M_oPvXkepUnuEG UFOwQZV4LapjDmoxoW96z4I.trOu1dlTIknicY50IM3TaqTe_cB50rq_zNG4GF9gSFOSpyYzpOyn qndPt3omWTxLOFmheuwC76TL9heapTqGYzDY1MjM_1BXai9d.dVCi3s2YNz6UEWCOFvWTZ67UcDI LiN_rEmjfxyxOx5OULYZP8YEGNvGpOOyarEIGCGT_tEWJJOZ33pUPvKL5HGAT.SLPz0j75sqKFRm fZ.BW7uf2h_dbUc9IhLjni2P3VYZa8OzT9fO_Lkyu_mgdSeQXLzV8JmhwQ44CDU8nIWBeVtaGBf0 4rcv5Gb4sonsaSbZcFLYn9mvqCW3PLlMndWlYtw6gPOrWJ4l9XcjeH01FC43pdvDtBHmc4GN5VZw rNsd.FCy11R3yBekLROxuZCcfZG.3dRm1HSIIMmptHZIb.89DfgLQKYd6bQc9tzRL42eD8Ab.SvD yn2ZMtBvh5ptPH_PBGoko0lQKIfuvlsKc2J7rpeNrk.YcpKYlI7R3PdOgOW86FG_iIEuclPVZEz0 7ujFZltdREJtz1jBdXcXVzXgiS6WT4_RpJJ4m1_qojS6s_Yg13DV5wdBuiANuFlk_eoKVYqtKNvq _7xuI9WYl6pfzSPtVr1y7_PpY94OJwgK1nCtU_I9nZl03.PqbWWQS9rOXR8Ku1f3OjIJnTO2TVcn 11FSLIw-- Received: from sonic.gate.mail.ne1.yahoo.com by sonic306.consmr.mail.ir2.yahoo.com with HTTP; Wed, 25 Mar 2020 00:44:38 +0000 Date: Wed, 25 Mar 2020 00:44:35 +0000 (UTC) From: Hannes Domani To: Gdb-patches Message-ID: <1797770823.3136966.1585097075167@mail.yahoo.com> In-Reply-To: References: <20200324192351.3904-1-ssbssa.ref@yahoo.de> <20200324192351.3904-1-ssbssa@yahoo.de> Subject: Re: [PATCH v2] Fix WOW64 process system DLL paths MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Mailer: WebService/1.1.15518 YMailNorrin Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:71.0) Gecko/20100101 Firefox/71.0 X-Spam-Status: No, score=-4.8 required=5.0 tests=BAYES_00, BODY_8BITS, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, FREEMAIL_FROM, GARBLED_BODY, RCVD_IN_DNSWL_NONE, RCVD_IN_MSPIKE_H2, SPF_HELO_NONE, SPF_PASS, TXREP autolearn=no autolearn_force=no version=3.4.2 X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on server2.sourceware.org X-BeenThere: gdb-patches@sourceware.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gdb-patches mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 25 Mar 2020 00:44:42 -0000 Am Mittwoch, 25. M=C3=A4rz 2020, 00:56:09 MEZ hat Jon Turney Folgendes geschrieben: > On 24/03/2020 19:23, Hannes Domani via Gdb-patches wrote: > > > GetModuleFileNameEx returns for some DLLs of WOW64 processes > > the path inside the 64bit system directory instead of the 32bit > > syswow64 directory. > > > > Problem happens e.g. with dbghelp.dll: > > > > (gdb) start > > Temporary breakpoint 1 at 0x415a00: file fiber.cpp, line 430. > > Starting program: C:\src\tests\fiber.exe > > warning: `C:\Windows\system32\dbghelp.dll': Shared library architecture= i386:x86-64 is not compatible with target architecture i386. > > > > Temporary breakpoint 1, main () at fiber.cpp:430 > > 430=C2=A0=C2=A0=C2=A0 { > > (gdb) info sharedlibrary > >=C2=A0 From=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 To=C2=A0=C2=A0=C2= =A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 Syms Read=C2=A0 Shared Object Libra= ry > > 0x77070000=C2=A0 0x771d4d20=C2=A0 Yes (*)=C2=A0=C2=A0=C2=A0 C:\Windows\= SysWOW64\ntdll.dll > > 0x74dc0000=C2=A0 0x74ebad9c=C2=A0 Yes (*)=C2=A0=C2=A0=C2=A0 C:\Windows\= syswow64\kernel32.dll > > 0x75341000=C2=A0 0x75386a18=C2=A0 Yes (*)=C2=A0=C2=A0=C2=A0 C:\Windows\= syswow64\KernelBase.dll > > 0x6f6a1000=C2=A0 0x6f7c48fc=C2=A0 Yes (*)=C2=A0=C2=A0=C2=A0 C:\Windows\= system32\dbghelp.dll > > 0x74d01000=C2=A0 0x74dab2c4=C2=A0 Yes (*)=C2=A0=C2=A0=C2=A0 C:\Windows\= syswow64\msvcrt.dll > > (*): Shared library is missing debugging information. > > > > This detects this situation and converts the DLL path to the > > syswow64 equivalent. > > > [...] > >=C2=A0 #else > >=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 name =3D dll_name; > >=C2=A0 #endif > > +#ifdef __x86_64__ > > +=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 /* Convert the DLL path of WOW64 proces= ses returned by > > +=C2=A0=C2=A0=C2=A0 GetModuleFileNameEx from the 64bit system directory= to the > > +=C2=A0=C2=A0=C2=A0 32bit syswow64 directory if necessary.=C2=A0 */ > > +=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 std::string syswow_dll_path; > > +=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 if (wow64_process > > +=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 && strncasecmp (name, system_dir, syste= m_dir_len) =3D=3D 0 > > +=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 && strchr (name + system_dir_len, '\\')= =3D=3D nullptr) > > +=C2=A0=C2=A0=C2=A0 { > > +=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 syswow_dll_path =3D syswow_dir; > > +=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 syswow_dll_path +=3D name + system_dir_= len; > > +=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 name =3D syswow_dll_path.c_str(); > > +=C2=A0=C2=A0=C2=A0 } > > +#endif > > > > > DLLs we become aware of via handle_load_dll() don't get this treatment. > > Can you share your reasoning about that? Because I get these wrong paths only with GetModuleFileNameEx, and LOAD_DLL_DEBUG_EVENT reports for the same dlls the correct path.