iPhone 开发者 : Xcode debugger does not stop on breakpoints

Question

我在 OS X 10.5.5 上安装了 Xcode 3.1.2。我有一个 iPhone 项目，可以正常构建，但调试器不会命中我设置的任何断点。我已经尝试了在网上找到的所有标准修复:

1. 我已在 Xcode 偏好设置中关闭“延迟加载符号”
2. 我的事件配置是调试
3. build设置中的优化级别为 0
4. 我已清理并重建了所有目标
5. 我使用“构建和调试”(而不是“构建和运行”)

我认为我可能无意中调整了项目的设置。所以我创建了一个新项目，该项目也有同样的问题。

我希望我在这里错过了一些简单的事情。我的调试器几天前还在工作，但突然停止了。

<小时/>

更新:

事情正变得越来越奇怪。以下是对回复的一些回答

1. 我在任何地方都找不到“GCC 4.0 - 代码生成”选项。我在“目标”和“可执行信息”页面上都看过了。我看到的唯一选项是选择编译器版本，并选择了 GCC 4.0，但这是一行部分，没有其他选项。
2. 关于在哪里放置断点:我目前唯一的断点在 main() 中，并且没有被击中
3. 我正在使用“运行”->“调试”(/% Y) 命令启动调试器。还是没有运气

<小时/>

更新 2:

1. 将目标设置中的 Base SDK 更改为 Sim 2.2.1。将 Active SDK 更改为 Sim 2.2.1。
2. 现在我可以看到 GCC 4.0 代码生成选项 - 调试符号已选中
3. 仍然没有达到断点

这里是控制台日志(断点设置在 main.m 的第一行):

[Session started at 2009-03-06 21:29:19 -0600.]
Loading program into debugger…
GNU gdb 6.3.50-20050815 (Apple version gdb-962) (Sat Jul 26 08:14:40 UTC 2008)
Copyright 2004 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB.  Type "show warranty" for details.
This GDB was configured as "i386-apple-darwin".warning: Unable to read symbols for "/System/Library/Frameworks/UIKit.framework/UIKit" (file not found).
warning: Unable to read symbols from "UIKit" (not yet mapped into memory).
warning: Unable to read symbols for "/System/Library/Frameworks/CoreGraphics.framework/CoreGraphics" (file not found).
warning: Unable to read symbols from "CoreGraphics" (not yet mapped into memory).
Program loaded.
sharedlibrary apply-load-rules all
Attaching to program: `/private/var/root/Library/Application Support/iPhone Simulator/User/Applications/753D12B3-777C-473B-B098-3E0AF6282545/TestApp.app/TestApp', process 577.
Re-enabling shared library breakpoint 1

这里还有 gdb 日志:

t=0.000852 Tepoch=1236463545.631514
<- (gdb) 
-> 135-gdb-version
#  PBXGDB_MIGDBVersionCommand t=4.308986 Tepoch=1236463549.939648
-> 136-gdb-set auto-raise-load-levels 1
#  PBXGDB_MISetAutoRaiseSymbols t=4.309420 Tepoch=1236463549.940082
-> 139-gdb-set env __CF_USER_TEXT_ENCODING 0x0:0:0
#  PBXGDB_MISetEnvCommand t=4.309702 Tepoch=1236463549.940364
-> 140-gdb-set env USERBREAK 1
#  PBXGDB_MISetEnvCommand t=4.309935 Tepoch=1236463549.940598
-> 141-gdb-set env DYLD_FRAMEWORK_PATH /Projects/TestApp/build/Debug-iphonesimulator
#  PBXGDB_MISetEnvCommand t=4.310175 Tepoch=1236463549.940837
-> 142-gdb-set env Apple_PubSub_Socket_Render /tmp/launch-GqkpX5/Render
#  PBXGDB_MISetEnvCommand t=4.310568 Tepoch=1236463549.941231
-> 143-gdb-set env SECURITYSESSIONID 715cd0
#  PBXGDB_MISetEnvCommand t=4.310803 Tepoch=1236463549.941465
-> 144-gdb-set env DYLD_LIBRARY_PATH /Projects/TestApp/build/Debug-iphonesimulator
#  PBXGDB_MISetEnvCommand t=4.311040 Tepoch=1236463549.941702
-> 145-gdb-set env SSH_AUTH_SOCK /tmp/launch-hRgLzb/Listeners
#  PBXGDB_MISetEnvCommand t=4.311299 Tepoch=1236463549.941961
-> 146-gdb-set env HOME /var/root
#  PBXGDB_MISetEnvCommand t=4.311587 Tepoch=1236463549.942250
-> 147-gdb-set env SHELL /bin/sh
#  PBXGDB_MISetEnvCommand t=4.311818 Tepoch=1236463549.942480
-> 148-gdb-set env DYLD_NO_FIX_PREBINDING YES
#  PBXGDB_MISetEnvCommand t=4.312048 Tepoch=1236463549.942710
-> 149-gdb-set env COMMAND_MODE unix2003
#  PBXGDB_MISetEnvCommand t=4.312281 Tepoch=1236463549.942943
-> 150-gdb-set env DYLD_NEW_LOCAL_SHARED_REGIONS YES
#  PBXGDB_MISetEnvCommand t=4.312546 Tepoch=1236463549.943209
-> 151-gdb-set env SSH_ASKPASS /Developer/Library/PrivateFrameworks/DevToolsInterface.framework/Resources/Xcode SSHPassKey
#  PBXGDB_MISetEnvCommand t=4.312780 Tepoch=1236463549.943443
-> 152-gdb-set env PATH /Developer/usr/bin:/usr/bin:/bin:/usr/sbin:/sbin
#  PBXGDB_MISetEnvCommand t=4.313612 Tepoch=1236463549.944275
-> 153-gdb-set env DISPLAY /tmp/launch-yrv3vV/:0
#  PBXGDB_MISetEnvCommand t=4.313849 Tepoch=1236463549.944512
-> 154-gdb-set env USER root
#  PBXGDB_MISetEnvCommand t=4.314141 Tepoch=1236463549.944803
-> 155-gdb-set env NSUnbufferedIO YES
#  PBXGDB_MISetEnvCommand t=4.314377 Tepoch=1236463549.945039
#  Enqueue seq in Command Q: <PBXGDB_SetupSharedLibrarySequence: 0x9049db0> t=4.314625 Tepoch=1236463549.945288
#  Executing Sequence: <PBXGDB_SetupSharedLibrarySequence: 0x9049db0> t=4.314718 Tepoch=1236463549.945380
-> 157-gdb-set inferior-auto-start-cfm off
#  PBXGDB_MISetLoadCFMInfoCommand t=4.314895 Tepoch=1236463549.945557
-> 156-gdb-set sharedLibrary load-rules dyld ".*Foundation.*" all dyld ".*libobjc.*" all dyld ".*libauto.*" all dyld ".*/usr/lib/dyld.*" all dyld ".*CFDataFormatters.*" all dyld ".*PBGDBIntrospectionSupport.*" all dyld ".*AppKit.*" all dyld ".*libSystem.*" all dyld ".*CarbonDataFormatters.*" all dyld ".*CoreFoundation.*" extern dyld "/System/Library/Frameworks\\\\|/System/Library/PrivateFrameworks\\\\|/usr/lib" extern dyld ".*" extern exec ".*" extern 
#  PBXGDB_MISetSharedLibraryLoadSymbolsCommand t=4.315975 Tepoch=1236463549.946637
-> 137-file-exec-and-symbols "/private/var/root/Library/Application Support/iPhone Simulator/User/Applications/09734C45-F595-4CB9-8707-744E92D66245/TestApp.app/TestApp"
#  PBXGDB_MILoadExecutableCommand t=4.320612 Tepoch=1236463549.951275
#  Enqueue seq in Command Q: <PBXGDB_FixAndContinueIsSupportedSequence: 0x9bdc260> t=4.321476 Tepoch=1236463549.952138
#  Enqueue seq in Command Q: <PBXGDB_NewBreakpointSequence: 0xa516f90> t=4.321941 Tepoch=1236463549.952603
#  Enqueue seq in Command Q: <PBXGDB_AttachControlSequence: 0xa4fceb0> t=4.322157 Tepoch=1236463549.952820
<- ~"GNU gdb 6.3.50-20050815 (Apple version gdb-962) (Sat Jul 26 08:14:40 UTC 2008)\n"
<- ~"Copyright 2004 Free Software Foundation, Inc.\n"
<- ~"GDB is free software, covered by the GNU General Public License, and you are\nwelcome to change it and/or distribute copies of it under certain conditions.\nType \"show copying\" to see the conditions.\nThere is absolutely no warranty for GDB.  Type \"show warranty\" for details.\n"
<- ~"This GDB was configured as \"i386-apple-darwin\"."
<- 135^done,version="6.3.50-20050815 (Apple version gdb-962)",rc_version="962",target="i386-apple-darwin",build-date="Sat Jul 26 08:14:40 UTC 2008",time={wallclock="0.03311",user="0.00081",system="0.00014",start="1236463549.989179",end="1236463550.022291"}
#  processing result t=4.392345 Tepoch=1236463550.023007
<- (gdb) 
<- 136^done,time={wallclock="0.00005",user="0.00005",system="0.00001",start="1236463550.024272",end="1236463550.024325"}
#  processing result t=4.394163 Tepoch=1236463550.024826
<- (gdb) 
<- 139^done,time={wallclock="0.00007",user="0.00005",system="0.00002",start="1236463550.025511",end="1236463550.025581"}
#  processing result t=4.395347 Tepoch=1236463550.026010
<- (gdb) 
<- 140^done,time={wallclock="0.00003",user="0.00003",system="0.00001",start="1236463550.026564",end="1236463550.026597"}
#  processing result t=4.396328 Tepoch=1236463550.026991
<- (gdb) 
<- 141^done,time={wallclock="0.00003",user="0.00003",system="0.00001",start="1236463550.027857",end="1236463550.027890"}
#  processing result t=4.397653 Tepoch=1236463550.028315
<- (gdb) 
<- 142^done,time={wallclock="0.00003",user="0.00003",system="0.00001",start="1236463550.029080",end="1236463550.029113"}
#  processing result t=4.398865 Tepoch=1236463550.029528
<- (gdb) 
<- 143^done,time={wallclock="0.00003",user="0.00003",system="0.00001",start="1236463550.030126",end="1236463550.030159"}
#  processing result t=4.399923 Tepoch=1236463550.030585
<- (gdb) 
<- 144^done,time={wallclock="0.00003",user="0.00003",system="0.00001",start="1236463550.031449",end="1236463550.031482"}
#  processing result t=4.401855 Tepoch=1236463550.032518
<- (gdb) 
<- 145^done,time={wallclock="0.00003",user="0.00003",system="0.00001",start="1236463550.033257",end="1236463550.033291"}
#  processing result t=4.403022 Tepoch=1236463550.033685
<- (gdb) 
<- 146^done,time={wallclock="0.00006",user="0.00003",system="0.00002",start="1236463550.034226",end="1236463550.034287"}
#  processing result t=4.404018 Tepoch=1236463550.034680
<- (gdb) 
<- 147^done,time={wallclock="0.00003",user="0.00003",system="0.00001",start="1236463550.035215",end="1236463550.035247"}
#  processing result t=4.405007 Tepoch=1236463550.035670
<- (gdb) 
<- 148^done,time={wallclock="0.00003",user="0.00003",system="0.00001",start="1236463550.036306",end="1236463550.036340"}
#  processing result t=4.406068 Tepoch=1236463550.036731
<- (gdb) 
<- 149^done,time={wallclock="0.00003",user="0.00003",system="0.00001",start="1236463550.037344",end="1236463550.037377"}
#  processing result t=4.407107 Tepoch=1236463550.037770
<- (gdb) 
<- 150^done,time={wallclock="0.00003",user="0.00003",system="0.00001",start="1236463550.038448",end="1236463550.038483"}
#  processing result t=4.408214 Tepoch=1236463550.038876
<- (gdb) 
<- 151^done,time={wallclock="0.00003",user="0.00003",system="0.00001",start="1236463550.040541",end="1236463550.040576"}
#  processing result t=4.410438 Tepoch=1236463550.041101
<- (gdb) 
<- 152^done,time={wallclock="0.00003",user="0.00003",system="0.00001",start="1236463550.041901",end="1236463550.041933"}
#  processing result t=4.411665 Tepoch=1236463550.042327
<- (gdb) 
<- 153^done,time={wallclock="0.00003",user="0.00003",system="0.00001",start="1236463550.042984",end="1236463550.043016"}
#  processing result t=4.412784 Tepoch=1236463550.043446
<- (gdb) 
<- 154^done,time={wallclock="0.00003",user="0.00002",system="0.00001",start="1236463550.043956",end="1236463550.043988"}
#  processing result t=4.413717 Tepoch=1236463550.044379
<- (gdb) 
<- 155^done,time={wallclock="0.00003",user="0.00003",system="0.00001",start="1236463550.044974",end="1236463550.045007"}
#  processing result t=4.414737 Tepoch=1236463550.045400
<- (gdb) 
<- 157^done,time={wallclock="0.00003",user="0.00003",system="0.00001",start="1236463550.046108",end="1236463550.046141"}
#  processing result t=4.415931 Tepoch=1236463550.046594
<- (gdb) 
<- 156^done,time={wallclock="0.00005",user="0.00005",system="0.00001",start="1236463550.050271",end="1236463550.050324"}
#  processing result t=4.420235 Tepoch=1236463550.050897
-> 158sharedlibrary apply-load-rules all
#  PBXGDB_MISharedLibraryApplyLoadRulesCommand t=4.420386 Tepoch=1236463550.051049
<- (gdb) 
<- &"warning: Unable to read symbols for \"/System/Library/Frameworks/UIKit.framework/UIKit\" (file not found).\n"
<- &"warning: Unable to read symbols from \"UIKit\" (not yet mapped into memory).\n"
<- &"warning: Unable to read symbols for \"/System/Library/Frameworks/CoreGraphics.framework/CoreGraphics\" (file not found).\n"
<- &"warning: Unable to read symbols from \"CoreGraphics\" (not yet mapped into memory).\n"
<- 137^done,time={wallclock="0.34917",user="0.17115",system="0.11409",start="1236463550.052577",end="1236463550.401747"}
#  processing result t=4.771918 Tepoch=1236463550.402580
<- (gdb) 
<- &"sharedlibrary apply-load-rules all\n"
<- 158^done
#  processing result t=4.820019 Tepoch=1236463550.450681
#  didFinish Sequence: <PBXGDB_SetupSharedLibrarySequence: 0x9049db0> t=4.820135 Tepoch=1236463550.450797
#  Executing Sequence: <PBXGDB_FixAndContinueIsSupportedSequence: 0x9bdc260> t=4.820259 Tepoch=1236463550.450921
-> 159-mi-verify-command file-fix-file-is-grooved
#  PBXGDB_MIVerifyCommandCommand t=4.820398 Tepoch=1236463550.451060
<- (gdb) 
<- 159^done,name="file-fix-file-is-grooved",defined="true",implemented="true",time={wallclock="0.00011",user="0.00007",system="0.00001",start="1236463550.451848",end="1236463550.451955"}
#  processing result t=4.821746 Tepoch=1236463550.452409
-> 160-file-fix-file-is-grooved
#  PBXGDB_MIFixAndContinueSupportedCommand t=4.821894 Tepoch=1236463550.452556
<- (gdb) 
<- 160^done,supported="1",details="Yes grooved!",time={wallclock="0.00006",user="0.00005",system="0.00002",start="1236463550.453356",end="1236463550.453417"}
#  processing result t=4.823203 Tepoch=1236463550.453865
#  didFinish Sequence: <PBXGDB_FixAndContinueIsSupportedSequence: 0x9bdc260> t=4.823344 Tepoch=1236463550.454006
#  Executing Sequence: <PBXGDB_NewBreakpointSequence: 0xa516f90> t=4.823433 Tepoch=1236463550.454095
#  Passed verification of state before break create command t=4.823569 Tepoch=1236463550.454231
-> 161-break-insert -l -1 -f  -s "TestApp" "\"main.m:13\""
#  PBXGDB_MICreateFileBreakpointCommand t=4.823679 Tepoch=1236463550.454342
<- (gdb) 
<- =shlib-state-modified,shlib-info=[num="1",name="TestApp",kind="-",dyld-addr="-",reason="exec",requested-state="Y",state="Y",path="/private/var/root/Library/Application Support/iPhone Simulator/User/Applications/09734C45-F595-4CB9-8707-744E92D66245/TestApp.app/TestApp",description="/private/var/root/Library/Application Support/iPhone Simulator/User/Applications/09734C45-F595-4CB9-8707-744E92D66245/TestApp.app/TestApp",loaded_addr="",slide="0x0",prefix="",dsym-objpath="/Projects/TestApp/build/Debug-iphonesimulator/TestApp.app.dSYM/Contents/Resources/DWARF/TestApp"]
<- 161^done,bkpt={number="1",type="breakpoint",disp="keep",enabled="y",addr="0x000028cf",func="main",file="/Projects/TestApp/main.m",line="13",shlib="/private/var/root/Library/Application Support/iPhone Simulator/User/Applications/09734C45-F595-4CB9-8707-744E92D66245/TestApp.app/TestApp",times="0"},time={wallclock="0.15835",user="0.00321",system="0.00184",start="1236463550.455187",end="1236463550.613542"}
#  processing result t=4.996437 Tepoch=1236463550.627100
#  didFinish Sequence: <PBXGDB_NewBreakpointSequence: 0xa516f90> t=4.996599 Tepoch=1236463550.627262
#  Executing Sequence: <PBXGDB_AttachControlSequence: 0xa4fceb0> t=4.996690 Tepoch=1236463550.627352
-> 162-mi-verify-command target-attach
#  PBXGDB_MIVerifyCommandCommand t=4.996824 Tepoch=1236463550.627486
<- (gdb) 
<- 162^done,name="target-attach",defined="true",implemented="true",time={wallclock="0.00007",user="0.00006",system="0.00001",start="1236463550.627975",end="1236463550.628046"}
#  processing result t=4.998137 Tepoch=1236463550.628799
-> 163-target-attach 288
#  PBXGDB_MIAttachCommand t=4.998293 Tepoch=1236463550.628955
<- (gdb) 
<- ~"Attaching to program: `/private/var/root/Library/Application Support/iPhone Simulator/User/Applications/09734C45-F595-4CB9-8707-744E92D66245/TestApp.app/TestApp', process 288.\n"
<- ~"Re-enabling shared library breakpoint 1\n"
<- =shlibs-updated
<- 163^done,thread-id="1",time={wallclock="0.00362",user="0.00151",system="0.00203",start="1236463550.629436",end="1236463550.633055"}
#  processing result t=5.010455 Tepoch=1236463550.641117
#  Enqueue seq in Command Q: <PBXGDB_ThreadListSequence: 0xa4e0520> t=5.011284 Tepoch=1236463550.641946
-> 164-exec-continue
#  PBXGDB_MIContinueExecutableCommand t=5.011420 Tepoch=1236463550.642082
<- (gdb) 
<- 164^running
#  processing result t=5.070065 Tepoch=1236463550.700727
#  didFinish Sequence: <PBXGDB_AttachControlSequence: 0xa4fceb0> t=5.071843 Tepoch=1236463550.702505
<- (gdb) 

Answer 1

I cannot find 'GCC 4.0 - Code Generation' options anywhere. I've looked hi and low in both Target and Executable Info pages. The only option I see is to select the compiler version, and GCC 4.0 is selected, but that is a one-line section with no additional options.

如果 Active SDK 与目标的 Base SDK 不同步，则这是 3.1.1 和 3.1.2 中的 Xcode 错误。将 Target 的 Base SDK 设置为 Simulator，确保您的 Active SDK 为 Simulator，然后重试。

如果您确实想要回答这个问题，则必须发布有关您的项目的更多信息:build设置的屏幕截图或来自调试器控制台的文本。

更新:另请注意 Xcode > 首选项 > 调试: alt text http://idisk.mac.com/cdespinosa/Public/GDB%20Log.png

选中该框，在路径字段中输入合理的路径，尝试您的调试方案，然后在http://bugreporter.apple.com处提交错误附上日志和对您的情况的描述，或者通过 xcode-users@lists.apple.com 询问好人。 gdb 日志包含有关调试器如何与应用程序交互的所有信息。