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无效异常展开导致崩溃？

2024-03-22

我正在调试我们的一项测试中发生的崩溃。我们有一个用 C++ 编写的 ODBC 驱动程序 .so，正在使用我们的测试工具（称为“Touchstone”）通过 iODBC 对其进行测试，该工具也是用 C++ 编写的。

我已使用 Oracle Solaris Studio 12.4 (NOT GCC).

仅当 Touchstone 在发布模式下构建时才会发生崩溃，因此我花了相当多的时间在 dbx 中单步调试汇编，似乎发生的情况如下：

  1. ‘statement’对象的‘this’指针被存储到r14中
  2. 我们调用驱动程序管理器 (DM) 中的 SQLColAttributes，它又调用驱动程序中的 SQLColAttributeW。
  3. 在返回到 DM 之前，它将 r14 溢出到 SQLColAttributeW 的被调用者之一的堆栈中。
  4. 在堆栈的更深处，抛出了一个异常（在离开驱动程序并返回到 DM 之前最终被捕获），这在堆栈展开期间似乎“混乱”，因此一旦我最终返回到 touchstone，r14 就是垃圾。 Touchstone 尝试从语句对象中检索成员，但很快就会因 SEGV 崩溃。

当我到达 #3 时，我做的第一件事就是在寄存器溢出的堆栈上放置一个硬件写监视，但直到返回到 touchstone 后、寄存器已经被溢出后，它才会被命中。已损坏。

然后我注意到似乎导致损坏的代码抛出了异常，并记住了this http://blogs.datalogics.com/2013/06/26/2013-june-dle-intel-solaris-64-mystery/，我以前遇到过，当使用用solaris studio构建的Touchstone时，使用了用gcc构建的驱动程序，所以我用solaris studio重新编译了iODBC，运行ldd不再显示对它的依赖，但它仍然以同样的方式崩溃。

我还尝试了该文章中建议的解决方法（LD_PRELOAD=/usr/sfw/lib/amd64/libgcc_s.so），但这也没有改变任何事情。

我还能够编译 valgrind，它似乎支持我的假设：

-bash-4.1$ $VG --tool=memcheck $TC -te ApiTestEnv_utf32.xml -ts ApiTestSuite.xml -o crash -rts COLATTRIBUTETESTS
==900== Memcheck, a memory error detector
==900== Copyright (C) 2002-2015, and GNU GPL'd, by Julian Seward et al.
==900== Using Valgrind-3.11.0 and LibVEX; rerun with -h for copyright info
==900== Command: /export/home/bamboo/Touchstone -te ApiTestEnv_utf32.xml -ts ApiTestSuite.xml -o crash -rts COLATTRIBUTETESTS
==900==
Simba Test Verbose Log Started on Thu Jul 14 11:35:25 2016

Touchstone test utility for ODBC and OLE DB for OLAP
Version: 4.5.0.5 (64-bit)
Copyright (c) 2012 Simba Technologies Incorporated

Starting test run
---------------------------
        API Tests: COLATTRIBUTETESTS: SQLCOLATTRIBUTES_ERROR (1)==900== Invalid read of size 8
==900==    at 0x7FE3BD7D2: _Unw_jmp (in /lib/amd64/libc.so.1)
==900==    by 0x7F94FF6D2: __1cFSimbaHSupportbAIniFileConfigurationReaderLOpenIniFile6Mrkn0BNsimba_wstring_5_pn0BITextFile__ (in /export/home/bamboo/sol-crash/libInternalTest_debug.so)
==900==    by 0x7F94FEBC3: __1cFSimbaHSupportbAIniFileConfigurationReaderRLoadConfiguration6MrnDstdDmap4n0BNsimba_wstring_n0DDmap4n0E_n0BHVariant_n0EZCaseInsensitiveComparator_n0DJallocator4n0DEpair4Ck4n0F_______n0G_n0DJallocator4n0DEpai
r4C5n0J_______r58p5_b_ (in /export/home/bamboo/sol-crash/libInternalTest_debug.so)
==900==    by 0x7F94FEA51: __1cFSimbaHSupportbAIniFileConfigurationReaderRLoadConfiguration6MrnDstdDmap4n0BNsimba_wstring_n0BHVariant_n0EZCaseInsensitiveComparator_n0DJallocator4n0DEpair4Ck4n0F_______r58p5b_b_ (in /export/home/bamboo/sol
-crash/libInternalTest_debug.so)
==900==    by 0x7F950CD97: __1cFSimbaHSupportSSimbaSettingReaderUInternal_ReadSetting6MrknDstdMbasic_string4Ccn0DLchar_traits4Cc__n0DJallocator4Cc_____4_ (in /export/home/bamboo/sol-crash/libInternalTest_debug.so)
==900==    by 0x7F950C2C6: __1cFSimbaHSupportSSimbaSettingReaderLReadSetting6FrknDstdMbasic_string4Ccn0DLchar_traits4Cc__n0DJallocator4Cc_____4_ (in /export/home/bamboo/sol-crash/libInternalTest_debug.so)
==900==    by 0x7F950A2DC: __1cFSimbaHSupportSSimbaSettingReaderSGetAppCharEncoding6F_n0BMEncodingType__ (in /export/home/bamboo/sol-crash/libInternalTest_debug.so)
==900==    by 0x7F8D8E29C: __1cFSimbaDDSIJDSIDriverYSetDefaultPropertyValues6M_v_ (in /export/home/bamboo/sol-crash/libInternalTest_debug.so)
==900==    by 0x7F8D8D787: __1cFSimbaDDSIJDSIDriver2t6M_v_ (in /export/home/bamboo/sol-crash/libInternalTest_debug.so)
==900==    by 0x7F7B57748: __1cFSimbaMInternalTestIITDriver2t6M_v_ (in /export/home/bamboo/sol-crash/libInternalTest_debug.so)
==900==    by 0x7F86D7330: __1cFSimbaDDSIQDSIDriverFactory6FrL_pn0BHIDriver__ (in /export/home/bamboo/sol-crash/libInternalTest_debug.so)
==900==    by 0x7F8E17FEB: __1cFSimbaDDSIWSharedSingletonManagerKInitialize6Fb_v_ (in /export/home/bamboo/sol-crash/libInternalTest_debug.so)
==900==  Address 0x37fe5ba8 is on thread 1's stack
==900==  664 bytes below stack pointer
==900==
==900== Invalid read of size 8
==900==    at 0x7FE3BD7D2: _Unw_jmp (in /lib/amd64/libc.so.1)
==900==    by 0x7F94FEBC3: __1cFSimbaHSupportbAIniFileConfigurationReaderRLoadConfiguration6MrnDstdDmap4n0BNsimba_wstring_n0DDmap4n0E_n0BHVariant_n0EZCaseInsensitiveComparator_n0DJallocator4n0DEpair4Ck4n0F_______n0G_n0DJallocator4n0DEpai
r4C5n0J_______r58p5_b_ (in /export/home/bamboo/sol-crash/libInternalTest_debug.so)
==900==    by 0x7F94FEA51: __1cFSimbaHSupportbAIniFileConfigurationReaderRLoadConfiguration6MrnDstdDmap4n0BNsimba_wstring_n0BHVariant_n0EZCaseInsensitiveComparator_n0DJallocator4n0DEpair4Ck4n0F_______r58p5b_b_ (in /export/home/bamboo/sol
-crash/libInternalTest_debug.so)
==900==    by 0x7F950CD97: __1cFSimbaHSupportSSimbaSettingReaderUInternal_ReadSetting6MrknDstdMbasic_string4Ccn0DLchar_traits4Cc__n0DJallocator4Cc_____4_ (in /export/home/bamboo/sol-crash/libInternalTest_debug.so)
==900==    by 0x7F950C2C6: __1cFSimbaHSupportSSimbaSettingReaderLReadSetting6FrknDstdMbasic_string4Ccn0DLchar_traits4Cc__n0DJallocator4Cc_____4_ (in /export/home/bamboo/sol-crash/libInternalTest_debug.so)
==900==    by 0x7F950A2DC: __1cFSimbaHSupportSSimbaSettingReaderSGetAppCharEncoding6F_n0BMEncodingType__ (in /export/home/bamboo/sol-crash/libInternalTest_debug.so)
==900==    by 0x7F8D8E29C: __1cFSimbaDDSIJDSIDriverYSetDefaultPropertyValues6M_v_ (in /export/home/bamboo/sol-crash/libInternalTest_debug.so)
==900==    by 0x7F8D8D787: __1cFSimbaDDSIJDSIDriver2t6M_v_ (in /export/home/bamboo/sol-crash/libInternalTest_debug.so)
==900==    by 0x7F7B57748: __1cFSimbaMInternalTestIITDriver2t6M_v_ (in /export/home/bamboo/sol-crash/libInternalTest_debug.so)
==900==    by 0x7F86D7330: __1cFSimbaDDSIQDSIDriverFactory6FrL_pn0BHIDriver__ (in /export/home/bamboo/sol-crash/libInternalTest_debug.so)
==900==    by 0x7F8E17FEB: __1cFSimbaDDSIWSharedSingletonManagerKInitialize6Fb_v_ (in /export/home/bamboo/sol-crash/libInternalTest_debug.so)
==900==    by 0x7FA0644BD: __1cFSimbaEODBCGDriverUInitializeSingletons6M_v_ (in /export/home/bamboo/sol-crash/libInternalTest_debug.so)
==900==  Address 0x37fe5bd8 is on thread 1's stack
==900==  856 bytes below stack pointer
==900==
==900== Invalid read of size 8
==900==    at 0x7FE3BD7D2: _Unw_jmp (in /lib/amd64/libc.so.1)
==900==    by 0x7F7B58945: __1cFSimbaMInternalTestIITDriverbAInitializeUnicodeStringMap6M_v_ (in /export/home/bamboo/sol-crash/libInternalTest_debug.so)
==900==    by 0x7F7B57C96: __1cFSimbaMInternalTestIITDriverRCreateEnvironment6M_pn0ADDSIMIEnvironment__ (in /export/home/bamboo/sol-crash/libInternalTest_debug.so)
==900==    by 0x7FA06087D: __1cFSimbaEODBCGDriverRCreateEnvironment6Mppv_h_ (in /export/home/bamboo/sol-crash/libInternalTest_debug.so)
==900==    by 0x7F9EB138F: SQLAllocHandle (in /export/home/bamboo/sol-crash/libInternalTest_debug.so)
==900==    by 0x7FE21BE90: _iodbcdm_driverload (in /export/home/bamboo/libiodbc-3.52.8/usr/local/lib/libiodbc.so.2)
==900==    by 0x7FE21FDB0: SQLDriverConnect_Internal (in /export/home/bamboo/libiodbc-3.52.8/usr/local/lib/libiodbc.so.2)
==900==    by 0x7FE220DE3: SQLDriverConnectW (in /export/home/bamboo/libiodbc-3.52.8/usr/local/lib/libiodbc.so.2)
==900==    by 0xA69132: __1cFSimbaIODBCTestDCliRSqlDriverConnectW6Mpv3pwh4hphH_h_ (in /export/home/bamboo/Touchstone)
==900==    by 0xAD9CDB: __1cFSimbaIODBCTestKConnectionRSqlDriverConnectW6MpvpkwhpwhphHrkn0BHOutcome_pkci_h_ (in /export/home/bamboo/Touchstone)
==900==    by 0xABC586: __1cFSimbaIODBCTestRConnectionFactorySMakeConnectionInC46Fpn0BLEnvironment_rkn0BHODBCStr__pn0BKConnection__ (in /export/home/bamboo/Touchstone)
==900==    by 0xAD2F39: __1cFSimbaIODBCTestSOdbcTestCaseBaseS1MexecuteSetup6M_b_ (in /export/home/bamboo/Touchstone)
==900==  Address 0x37fe6798 is on thread 1's stack
==900==  664 bytes below stack pointer
==900==
==900== Invalid read of size 8
==900==    at 0x7FE3BD7D2: _Unw_jmp (in /lib/amd64/libc.so.1)
==900==    by 0x7F7B57C96: __1cFSimbaMInternalTestIITDriverRCreateEnvironment6M_pn0ADDSIMIEnvironment__ (in /export/home/bamboo/sol-crash/libInternalTest_debug.so)
==900==    by 0x7FA06087D: __1cFSimbaEODBCGDriverRCreateEnvironment6Mppv_h_ (in /export/home/bamboo/sol-crash/libInternalTest_debug.so)
==900==    by 0x7F9EB138F: SQLAllocHandle (in /export/home/bamboo/sol-crash/libInternalTest_debug.so)
==900==    by 0x7FE21BE90: _iodbcdm_driverload (in /export/home/bamboo/libiodbc-3.52.8/usr/local/lib/libiodbc.so.2)
==900==    by 0x7FE21FDB0: SQLDriverConnect_Internal (in /export/home/bamboo/libiodbc-3.52.8/usr/local/lib/libiodbc.so.2)
==900==    by 0x7FE220DE3: SQLDriverConnectW (in /export/home/bamboo/libiodbc-3.52.8/usr/local/lib/libiodbc.so.2)
==900==    by 0xA69132: __1cFSimbaIODBCTestDCliRSqlDriverConnectW6Mpv3pwh4hphH_h_ (in /export/home/bamboo/Touchstone)
==900==    by 0xAD9CDB: __1cFSimbaIODBCTestKConnectionRSqlDriverConnectW6MpvpkwhpwhphHrkn0BHOutcome_pkci_h_ (in /export/home/bamboo/Touchstone)
==900==    by 0xABC586: __1cFSimbaIODBCTestRConnectionFactorySMakeConnectionInC46Fpn0BLEnvironment_rkn0BHODBCStr__pn0BKConnection__ (in /export/home/bamboo/Touchstone)
==900==    by 0xAD2F39: __1cFSimbaIODBCTestSOdbcTestCaseBaseS1MexecuteSetup6M_b_ (in /export/home/bamboo/Touchstone)
==900==    by 0xD228AB: __1c9uX__unnamed_Aj63VIoYhXFiiQColAttributeBaseMexecuteSetup6M_b_ (in /export/home/bamboo/Touchstone)
==900==  Address 0x37fe67c8 is on thread 1's stack
==900==  856 bytes below stack pointer
==900==
==900== Invalid read of size 8
==900==    at 0x7FE3BD7D2: _Unw_jmp (in /lib/amd64/libc.so.1)
==900==    by 0x7FA039B3D: __1cFSimbaEODBCKDescriptorOGetHeaderField6kMhpvpi_v_ (in /export/home/bamboo/sol-crash/libInternalTest_debug.so)
==900==    by 0x7FA11C104: __1cFSimbaEODBCOStatementStateQSQdDLNumResultCols6Mph_v_ (in /export/home/bamboo/sol-crash/libInternalTest_debug.so)
==900==    by 0x7FA10903D: __1cFSimbaEODBCJStatementQSQdDLNumResultCols6Mph_h_ (in /export/home/bamboo/sol-crash/libInternalTest_debug.so)
==900==    by 0x7F9F52DE0: __1cGDoTask4nFSimbaEODBCUSQdDLNumResultColsTask__6Fpkcpvrn7TAOTaskParameters__h_ (in /export/home/bamboo/sol-crash/libInternalTest_debug.so)
==900==    by 0x7F9ED63DB: SQLNumResultCols (in /export/home/bamboo/sol-crash/libInternalTest_debug.so)
==900==    by 0x7FE23C4E1: _iodbcdm_NumResultCols (in /export/home/bamboo/libiodbc-3.52.8/usr/local/lib/libiodbc.so.2)
==900==    by 0x7FE223169: _iodbcdm_do_cursoropen (in /export/home/bamboo/libiodbc-3.52.8/usr/local/lib/libiodbc.so.2)
==900==    by 0x7FE224295: SQLExecDirect_Internal (in /export/home/bamboo/libiodbc-3.52.8/usr/local/lib/libiodbc.so.2)
==900==    by 0x7FE224537: SQLExecDirect (in /export/home/bamboo/libiodbc-3.52.8/usr/local/lib/libiodbc.so.2)
==900==    by 0xA69B5D: __1cFSimbaIODBCTestDCliNSqlExecDirect6MpvpCi_h_ (in /export/home/bamboo/Touchstone)
==900==    by 0xAE39BA: __1cFSimbaIODBCTestJStatementNSqlExecDirect6MpkCirkn0BHOutcome_pkci_h_ (in /export/home/bamboo/Touchstone)
==900==  Address 0x37fee258 is on thread 1's stack
==900==  664 bytes below stack pointer
==900==
==900== Invalid read of size 8
==900==    at 0x7FE3BD7D2: _Unw_jmp (in /lib/amd64/libc.so.1)
==900==    by 0x7FA10903D: __1cFSimbaEODBCJStatementQSQdDLNumResultCols6Mph_h_ (in /export/home/bamboo/sol-crash/libInternalTest_debug.so)
==900==    by 0x7F9F52DE0: __1cGDoTask4nFSimbaEODBCUSQdDLNumResultColsTask__6Fpkcpvrn7TAOTaskParameters__h_ (in /export/home/bamboo/sol-crash/libInternalTest_debug.so)
==900==    by 0x7F9ED63DB: SQLNumResultCols (in /export/home/bamboo/sol-crash/libInternalTest_debug.so)
==900==    by 0x7FE23C4E1: _iodbcdm_NumResultCols (in /export/home/bamboo/libiodbc-3.52.8/usr/local/lib/libiodbc.so.2)
==900==    by 0x7FE223169: _iodbcdm_do_cursoropen (in /export/home/bamboo/libiodbc-3.52.8/usr/local/lib/libiodbc.so.2)
==900==    by 0x7FE224295: SQLExecDirect_Internal (in /export/home/bamboo/libiodbc-3.52.8/usr/local/lib/libiodbc.so.2)
==900==    by 0x7FE224537: SQLExecDirect (in /export/home/bamboo/libiodbc-3.52.8/usr/local/lib/libiodbc.so.2)
==900==    by 0xA69B5D: __1cFSimbaIODBCTestDCliNSqlExecDirect6MpvpCi_h_ (in /export/home/bamboo/Touchstone)
==900==    by 0xAE39BA: __1cFSimbaIODBCTestJStatementNSqlExecDirect6MpkCirkn0BHOutcome_pkci_h_ (in /export/home/bamboo/Touchstone)
==900==    by 0xD205EA: __1c9uX__unnamed_Aj63VIoYhXFiiWSQdDLCOLATTRIBUTES_ERRORLexecuteTest6M_b_ (in /export/home/bamboo/Touchstone)
==900==    by 0x12F954D: __1cFSimbaETestECaseHrunTest6MrknDstdMbasic_string4Ccn0DLchar_traits4Cc__n0DJallocator4Cc_____n0CLTEST_STATUS__ (in /export/home/bamboo/Touchstone)
==900==  Address 0x37fee288 is on thread 1's stack
==900==  1128 bytes below stack pointer
==900==
==900== Invalid read of size 8
==900==    at 0x7FE3BD7D2: _Unw_jmp (in /lib/amd64/libc.so.1)
==900==    by 0x7FA039B3D: __1cFSimbaEODBCKDescriptorOGetHeaderField6kMhpvpi_v_ (in /export/home/bamboo/sol-crash/libInternalTest_debug.so)
==900==    by 0x7FA11F45D: __1cFSimbaEODBCOStatementStateXDoColAttributeOnlyCount6MHphpl_nDstdEpair4Cp2Ch___ (in /export/home/bamboo/sol-crash/libInternalTest_debug.so)
==900==    by 0x7FA12962D: __1cFSimbaEODBCWStatementStateExecutedQSQdDLColAttributeW6MHHpvhphpl_nDstdEpair4Cpn0BOStatementState_Ch___ (in /export/home/bamboo/sol-crash/libInternalTest_debug.so)
==900==    by 0x7FA0F6AAE: __1cFSimbaEODBCJStatementQSQdDLColAttributeW6MHHpvhphpl_h_ (in /export/home/bamboo/sol-crash/libInternalTest_debug.so)
==900==    by 0x7F9EA3CC2: __1cFSimbaEODBCTSQdDLColAttributeTask4B_PDoSynchronously6Frn0BJStatement_rkn0COTaskParameters__h_ (in /export/home/bamboo/sol-crash/libInternalTest_debug.so)
==900==    by 0x7F9F10151: __1cGDoTask4nFSimbaEODBCTSQdDLColAttributeTask4B___6Fpkcpvrn7TAOTaskParameters__h_ (in /export/home/bamboo/sol-crash/libInternalTest_debug.so)
==900==    by 0x7F9EB815B: SQLColAttributeW (in /export/home/bamboo/sol-crash/libInternalTest_debug.so)
==900==    by 0x7FE23DC5E: SQLColAttributes_Internal (in /export/home/bamboo/libiodbc-3.52.8/usr/local/lib/libiodbc.so.2)
==900==    by 0x7FE23E495: SQLColAttributes (in /export/home/bamboo/libiodbc-3.52.8/usr/local/lib/libiodbc.so.2)
==900==    by 0xA69EE8: __1cFSimbaIODBCTestDCliQSqlColAttributes6MpvHH3hphpl_h_ (in /export/home/bamboo/Touchstone)
==900==    by 0xAE4CE7: __1cFSimbaIODBCTestJStatementQSqlColAttributes6MHHpvhphplrkn0BHOutcome_pkci_h_ (in /export/home/bamboo/Touchstone)
==900==  Address 0x37fedf48 is on thread 1's stack
==900==  664 bytes below stack pointer
==900==
==900== Invalid read of size 8
==900==    at 0x7FE3BD7D2: _Unw_jmp (in /lib/amd64/libc.so.1)
==900==    by 0x7FA12962D: __1cFSimbaEODBCWStatementStateExecutedQSQdDLColAttributeW6MHHpvhphpl_nDstdEpair4Cpn0BOStatementState_Ch___ (in /export/home/bamboo/sol-crash/libInternalTest_debug.so)
==900==    by 0x7FA0F6AAE: __1cFSimbaEODBCJStatementQSQdDLColAttributeW6MHHpvhphpl_h_ (in /export/home/bamboo/sol-crash/libInternalTest_debug.so)
==900==    by 0x7F9EA3CC2: __1cFSimbaEODBCTSQdDLColAttributeTask4B_PDoSynchronously6Frn0BJStatement_rkn0COTaskParameters__h_ (in /export/home/bamboo/sol-crash/libInternalTest_debug.so)
==900==    by 0x7F9F10151: __1cGDoTask4nFSimbaEODBCTSQdDLColAttributeTask4B___6Fpkcpvrn7TAOTaskParameters__h_ (in /export/home/bamboo/sol-crash/libInternalTest_debug.so)
==900==    by 0x7F9EB815B: SQLColAttributeW (in /export/home/bamboo/sol-crash/libInternalTest_debug.so)
==900==    by 0x7FE23DC5E: SQLColAttributes_Internal (in /export/home/bamboo/libiodbc-3.52.8/usr/local/lib/libiodbc.so.2)
==900==    by 0x7FE23E495: SQLColAttributes (in /export/home/bamboo/libiodbc-3.52.8/usr/local/lib/libiodbc.so.2)
==900==    by 0xA69EE8: __1cFSimbaIODBCTestDCliQSqlColAttributes6MpvHH3hphpl_h_ (in /export/home/bamboo/Touchstone)
==900==    by 0xAE4CE7: __1cFSimbaIODBCTestJStatementQSqlColAttributes6MHHpvhphplrkn0BHOutcome_pkci_h_ (in /export/home/bamboo/Touchstone)
==900==    by 0xD22371: __1c9uX__unnamed_Aj63VIoYhXFiiQColAttributeBasebEVerifyColAttributesNumberField6Mhl_v_ (in /export/home/bamboo/Touchstone)
==900==    by 0xD20720: __1c9uX__unnamed_Aj63VIoYhXFiiWSQdDLCOLATTRIBUTES_ERRORLexecuteTest6M_b_ (in /export/home/bamboo/Touchstone)
==900==  Address 0x37fedf78 is on thread 1's stack
==900==  1128 bytes below stack pointer
==900==
==900== Invalid read of size 8
==900==    at 0x7FE3BD7D2: _Unw_jmp (in /lib/amd64/libc.so.1)
==900==    by 0x7FA0F6AAE: __1cFSimbaEODBCJStatementQSQdDLColAttributeW6MHHpvhphpl_h_ (in /export/home/bamboo/sol-crash/libInternalTest_debug.so)
==900==    by 0x7F9EA3CC2: __1cFSimbaEODBCTSQdDLColAttributeTask4B_PDoSynchronously6Frn0BJStatement_rkn0COTaskParameters__h_ (in /export/home/bamboo/sol-crash/libInternalTest_debug.so)
==900==    by 0x7F9F10151: __1cGDoTask4nFSimbaEODBCTSQdDLColAttributeTask4B___6Fpkcpvrn7TAOTaskParameters__h_ (in /export/home/bamboo/sol-crash/libInternalTest_debug.so)
==900==    by 0x7F9EB815B: SQLColAttributeW (in /export/home/bamboo/sol-crash/libInternalTest_debug.so)
==900==    by 0x7FE23DC5E: SQLColAttributes_Internal (in /export/home/bamboo/libiodbc-3.52.8/usr/local/lib/libiodbc.so.2)
==900==    by 0x7FE23E495: SQLColAttributes (in /export/home/bamboo/libiodbc-3.52.8/usr/local/lib/libiodbc.so.2)
==900==    by 0xA69EE8: __1cFSimbaIODBCTestDCliQSqlColAttributes6MpvHH3hphpl_h_ (in /export/home/bamboo/Touchstone)
==900==    by 0xAE4CE7: __1cFSimbaIODBCTestJStatementQSqlColAttributes6MHHpvhphplrkn0BHOutcome_pkci_h_ (in /export/home/bamboo/Touchstone)
==900==    by 0xD22776: __1c9uX__unnamed_Aj63VIoYhXFiiQColAttributeBasebCVerifyColAttributesWithError6MhrknFSimbaIODBCTestMThrowOutcome__v_ (in /export/home/bamboo/Touchstone)
==900==    by 0xD208FC: __1c9uX__unnamed_Aj63VIoYhXFiiWSQdDLCOLATTRIBUTES_ERRORLexecuteTest6M_b_ (in /export/home/bamboo/Touchstone)
==900==    by 0x12F954D: __1cFSimbaETestECaseHrunTest6MrknDstdMbasic_string4Ccn0DLchar_traits4Cc__n0DJallocator4Cc_____n0CLTEST_STATUS__ (in /export/home/bamboo/Touchstone)
==900==  Address 0x37fee258 is on thread 1's stack
==900==  664 bytes below stack pointer
==900==
==900== Invalid read of size 8
==900==    at 0x7FE3BD7D2: _Unw_jmp (in /lib/amd64/libc.so.1)
==900==    by 0x7F9EA3CC2: __1cFSimbaEODBCTSQdDLColAttributeTask4B_PDoSynchronously6Frn0BJStatement_rkn0COTaskParameters__h_ (in /export/home/bamboo/sol-crash/libInternalTest_debug.so)
==900==    by 0x7F9F10151: __1cGDoTask4nFSimbaEODBCTSQdDLColAttributeTask4B___6Fpkcpvrn7TAOTaskParameters__h_ (in /export/home/bamboo/sol-crash/libInternalTest_debug.so)
==900==    by 0x7F9EB815B: SQLColAttributeW (in /export/home/bamboo/sol-crash/libInternalTest_debug.so)
==900==    by 0x7FE23DC5E: SQLColAttributes_Internal (in /export/home/bamboo/libiodbc-3.52.8/usr/local/lib/libiodbc.so.2)
==900==    by 0x7FE23E495: SQLColAttributes (in /export/home/bamboo/libiodbc-3.52.8/usr/local/lib/libiodbc.so.2)
==900==    by 0xA69EE8: __1cFSimbaIODBCTestDCliQSqlColAttributes6MpvHH3hphpl_h_ (in /export/home/bamboo/Touchstone)
==900==    by 0xAE4CE7: __1cFSimbaIODBCTestJStatementQSqlColAttributes6MHHpvhphplrkn0BHOutcome_pkci_h_ (in /export/home/bamboo/Touchstone)
==900==    by 0xD22776: __1c9uX__unnamed_Aj63VIoYhXFiiQColAttributeBasebCVerifyColAttributesWithError6MhrknFSimbaIODBCTestMThrowOutcome__v_ (in /export/home/bamboo/Touchstone)
==900==    by 0xD208FC: __1c9uX__unnamed_Aj63VIoYhXFiiWSQdDLCOLATTRIBUTES_ERRORLexecuteTest6M_b_ (in /export/home/bamboo/Touchstone)
==900==    by 0x12F954D: __1cFSimbaETestECaseHrunTest6MrknDstdMbasic_string4Ccn0DLchar_traits4Cc__n0DJallocator4Cc_____n0CLTEST_STATUS__ (in /export/home/bamboo/Touchstone)
==900==    by 0x1300335: __1cFSimbaETestGEngineHrunTest6Mpn0BECase__v_ (in /export/home/bamboo/Touchstone)
==900==  Address 0x37fee288 is on thread 1's stack
==900==  776 bytes below stack pointer
==900==
==900== Use of uninitialised value of size 8
==900==    at 0xAE161A: __1cFSimbaIODBCTestGHandleMCheckOutcome6kMrkn0BHOutcome_hpkci_v_ (in /export/home/bamboo/Touchstone)
==900==    by 0xAE4D01: __1cFSimbaIODBCTestJStatementQSqlColAttributes6MHHpvhphplrkn0BHOutcome_pkci_h_ (in /export/home/bamboo/Touchstone)
==900==    by 0xD22776: __1c9uX__unnamed_Aj63VIoYhXFiiQColAttributeBasebCVerifyColAttributesWithError6MhrknFSimbaIODBCTestMThrowOutcome__v_ (in /export/home/bamboo/Touchstone)
==900==    by 0xD208FC: __1c9uX__unnamed_Aj63VIoYhXFiiWSQdDLCOLATTRIBUTES_ERRORLexecuteTest6M_b_ (in /export/home/bamboo/Touchstone)
==900==    by 0x12F954D: __1cFSimbaETestECaseHrunTest6MrknDstdMbasic_string4Ccn0DLchar_traits4Cc__n0DJallocator4Cc_____n0CLTEST_STATUS__ (in /export/home/bamboo/Touchstone)
==900==    by 0x1300335: __1cFSimbaETestGEngineHrunTest6Mpn0BECase__v_ (in /export/home/bamboo/Touchstone)
==900==    by 0x12FFD8C: __1cFSimbaETestGEngineIRunTests6Mpn0BPTestEnvironment_i_b_ (in /export/home/bamboo/Touchstone)
==900==    by 0xA66238: main (in /export/home/bamboo/Touchstone)
==900==
==900== Use of uninitialised value of size 8
==900==    at 0xAE1634: __1cFSimbaIODBCTestGHandleMCheckOutcome6kMrkn0BHOutcome_hpkci_v_ (in /export/home/bamboo/Touchstone)
==900==    by 0xAE4D01: __1cFSimbaIODBCTestJStatementQSqlColAttributes6MHHpvhphplrkn0BHOutcome_pkci_h_ (in /export/home/bamboo/Touchstone)
==900==    by 0xD22776: __1c9uX__unnamed_Aj63VIoYhXFiiQColAttributeBasebCVerifyColAttributesWithError6MhrknFSimbaIODBCTestMThrowOutcome__v_ (in /export/home/bamboo/Touchstone)
==900==    by 0xD208FC: __1c9uX__unnamed_Aj63VIoYhXFiiWSQdDLCOLATTRIBUTES_ERRORLexecuteTest6M_b_ (in /export/home/bamboo/Touchstone)
==900==    by 0x12F954D: __1cFSimbaETestECaseHrunTest6MrknDstdMbasic_string4Ccn0DLchar_traits4Cc__n0DJallocator4Cc_____n0CLTEST_STATUS__ (in /export/home/bamboo/Touchstone)
==900==    by 0x1300335: __1cFSimbaETestGEngineHrunTest6Mpn0BECase__v_ (in /export/home/bamboo/Touchstone)
==900==    by 0x12FFD8C: __1cFSimbaETestGEngineIRunTests6Mpn0BPTestEnvironment_i_b_ (in /export/home/bamboo/Touchstone)
==900==    by 0xA66238: main (in /export/home/bamboo/Touchstone)
==900==
==900== Use of uninitialised value of size 8
==900==    at 0xAE1224: __1cFSimbaIODBCTestGHandleDlog6kM_pn0AETestNVerboseLogger__ (in /export/home/bamboo/Touchstone)
==900==    by 0xAE1827: __1cFSimbaIODBCTestGHandleMCheckOutcome6kMrkn0BHOutcome_hpkci_v_ (in /export/home/bamboo/Touchstone)
==900==    by 0xAE4D01: __1cFSimbaIODBCTestJStatementQSqlColAttributes6MHHpvhphplrkn0BHOutcome_pkci_h_ (in /export/home/bamboo/Touchstone)
==900==    by 0xD22776: __1c9uX__unnamed_Aj63VIoYhXFiiQColAttributeBasebCVerifyColAttributesWithError6MhrknFSimbaIODBCTestMThrowOutcome__v_ (in /export/home/bamboo/Touchstone)
==900==    by 0xD208FC: __1c9uX__unnamed_Aj63VIoYhXFiiWSQdDLCOLATTRIBUTES_ERRORLexecuteTest6M_b_ (in /export/home/bamboo/Touchstone)
==900==    by 0x12F954D: __1cFSimbaETestECaseHrunTest6MrknDstdMbasic_string4Ccn0DLchar_traits4Cc__n0DJallocator4Cc_____n0CLTEST_STATUS__ (in /export/home/bamboo/Touchstone)
==900==    by 0x1300335: __1cFSimbaETestGEngineHrunTest6Mpn0BECase__v_ (in /export/home/bamboo/Touchstone)
==900==    by 0x12FFD8C: __1cFSimbaETestGEngineIRunTests6Mpn0BPTestEnvironment_i_b_ (in /export/home/bamboo/Touchstone)
==900==    by 0xA66238: main (in /export/home/bamboo/Touchstone)
==900==
==900== Invalid read of size 1
==900==    at 0x7FE3AD4FD: mutex_lock_impl (in /lib/amd64/libc.so.1)
==900==    by 0x7FE3AD793: mutex_lock (in /lib/amd64/libc.so.1)
==900==    by 0x1317140: __1cFSimbaETestNVerboseLoggerDLog6MrknDstdMbasic_string4Ccn0DLchar_traits4Cc__n0DJallocator4Cc_____v_ (in /export/home/bamboo/Touchstone)
==900==    by 0xAE184A: __1cFSimbaIODBCTestGHandleMCheckOutcome6kMrkn0BHOutcome_hpkci_v_ (in /export/home/bamboo/Touchstone)
==900==    by 0xAE4D01: __1cFSimbaIODBCTestJStatementQSqlColAttributes6MHHpvhphplrkn0BHOutcome_pkci_h_ (in /export/home/bamboo/Touchstone)
==900==    by 0xD22776: __1c9uX__unnamed_Aj63VIoYhXFiiQColAttributeBasebCVerifyColAttributesWithError6MhrknFSimbaIODBCTestMThrowOutcome__v_ (in /export/home/bamboo/Touchstone)
==900==    by 0xD208FC: __1c9uX__unnamed_Aj63VIoYhXFiiWSQdDLCOLATTRIBUTES_ERRORLexecuteTest6M_b_ (in /export/home/bamboo/Touchstone)
==900==    by 0x12F954D: __1cFSimbaETestECaseHrunTest6MrknDstdMbasic_string4Ccn0DLchar_traits4Cc__n0DJallocator4Cc_____n0CLTEST_STATUS__ (in /export/home/bamboo/Touchstone)
==900==    by 0x1300335: __1cFSimbaETestGEngineHrunTest6Mpn0BECase__v_ (in /export/home/bamboo/Touchstone)
==900==    by 0x12FFD8C: __1cFSimbaETestGEngineIRunTests6Mpn0BPTestEnvironment_i_b_ (in /export/home/bamboo/Touchstone)
==900==    by 0xA66238: main (in /export/home/bamboo/Touchstone)
==900==  Address 0x650000017b is not stack'd, malloc'd or (recently) free'd
==900==
==900==
==900== Process terminating with default action of signal 11 (SIGSEGV): dumping core
==900==  Access not within mapped region at address 0x650000017B
==900==    at 0x7FE3AD4FD: mutex_lock_impl (in /lib/amd64/libc.so.1)
==900==    by 0x7FE3AD793: mutex_lock (in /lib/amd64/libc.so.1)
==900==    by 0x1317140: __1cFSimbaETestNVerboseLoggerDLog6MrknDstdMbasic_string4Ccn0DLchar_traits4Cc__n0DJallocator4Cc_____v_ (in /export/home/bamboo/Touchstone)
==900==    by 0xAE184A: __1cFSimbaIODBCTestGHandleMCheckOutcome6kMrkn0BHOutcome_hpkci_v_ (in /export/home/bamboo/Touchstone)
==900==    by 0xAE4D01: __1cFSimbaIODBCTestJStatementQSqlColAttributes6MHHpvhphplrkn0BHOutcome_pkci_h_ (in /export/home/bamboo/Touchstone)
==900==    by 0xD22776: __1c9uX__unnamed_Aj63VIoYhXFiiQColAttributeBasebCVerifyColAttributesWithError6MhrknFSimbaIODBCTestMThrowOutcome__v_ (in /export/home/bamboo/Touchstone)
==900==    by 0xD208FC: __1c9uX__unnamed_Aj63VIoYhXFiiWSQdDLCOLATTRIBUTES_ERRORLexecuteTest6M_b_ (in /export/home/bamboo/Touchstone)
==900==    by 0x12F954D: __1cFSimbaETestECaseHrunTest6MrknDstdMbasic_string4Ccn0DLchar_traits4Cc__n0DJallocator4Cc_____n0CLTEST_STATUS__ (in /export/home/bamboo/Touchstone)
==900==    by 0x1300335: __1cFSimbaETestGEngineHrunTest6Mpn0BECase__v_ (in /export/home/bamboo/Touchstone)
==900==    by 0x12FFD8C: __1cFSimbaETestGEngineIRunTests6Mpn0BPTestEnvironment_i_b_ (in /export/home/bamboo/Touchstone)
==900==    by 0xA66238: main (in /export/home/bamboo/Touchstone)
==900==  If you believe this happened as a result of a stack
==900==  overflow in your program's main thread (unlikely but
==900==  possible), you can try to increase the size of the
==900==  main thread stack using the --main-stacksize= flag.
==900==  The main thread stack size used in this run was 8388608.
==900==
==900== HEAP SUMMARY:
==900==     in use at exit: 19,994,466 bytes in 157,661 blocks
==900==   total heap usage: 416,854 allocs, 259,193 frees, 56,010,824 bytes allocated
==900==
==900== LEAK SUMMARY:
==900==    definitely lost: 0 bytes in 0 blocks
==900==    indirectly lost: 0 bytes in 0 blocks
==900==      possibly lost: 10,903,944 bytes in 79,967 blocks
==900==    still reachable: 9,090,522 bytes in 77,694 blocks
==900==         suppressed: 0 bytes in 0 blocks
==900== Rerun with --leak-check=full to see details of leaked memory
==900==
==900== For counts of detected and suppressed errors, rerun with: -v
==900== Use --track-origins=yes to see where uninitialised values come from
==900== ERROR SUMMARY: 14 errors from 14 contexts (suppressed: 0 from 0)
Segmentation Fault

寻找_Uwn_jmp给我this https://sourceforge.net/p/valgrind/mailman/message/34552954/不幸的是（看看名字），这意味着我看到了同样的事情，因为我认为 gcc/cc 不兼容。

相同的测试适用于 32 位。

有任何想法吗？


（不是完整的答案，但这对于评论来说似乎太长了）。

TL:DR：检查 ABI，而不是猜测哪个部分是错误的。

r14是一个调用保留的寄存器（并且不用于参数传递）SysV AMD64 ABI http://www.x86-64.org/documentation.html。想要使用它的函数会将其推送到其序言中并将其弹出到其尾声中。但他们并不关心呼叫者用它做什么。他们只需要确保它的返回值与进入时的值相同。

进入时的寄存器状态catch条款似乎记录在 ABI 第 6.2.6 节中：

将控制权转移到停机坪

...

在登陆垫中执行代码之前，展开库会恢复寄存器 不被个性惯例改变，使用上下文记录，到他们的状态 引发异常的调用之前的帧，如下所示。指定所有寄存器 当由基本 ABI 保存的被调用者被恢复时，[并且%rsi, %rdi, %rdx, %rcx用于传递有关异常的信息]。

ABI 中最后一句话的原始措辞令人困惑。我在[]内的解释可能是错误的。 （参见该小节的最后一段）。

基于本节和前面的部分（描述如何调用每个帧的清理代码，即使它没有catch），我几乎可以肯定调用保留的寄存器会在catch。这与在展开期间运行析构函数的机制相同，这是必要的。

所以听起来错误是这样的r14未正确恢复。该功能catches 异常并尝试使用r14没有做错任何事。

也许尝试包含析构函数，在某些将展开堆栈帧的函数中打印一些日志信息？也许让他们检查全局来决定是否打印，这样您就可以设置一个全局，然后进行将导致抛出异常的调用，这样您就不会看到一个充满来自不打印的调用的日志消息的屏幕。扔。

如果您没有看到，也许在展开的第二阶段没有正确调用析构函数/清理r14正在恢复。

...在寄存器溢出的堆栈上放置一个硬件写入监视，但直到返回 touchstone 后它才会被命中

您应该一直使用读取观察点来查找在释放它的函数的展开清理代码期间是否正在读取它。毫不奇怪，在进入之前，没有任何内容会覆盖泄漏位置。catch clause.

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