苹果LLVM编译器3.1错误 [英] Apple LLVM compiler 3.1 error
本文介绍了苹果LLVM编译器3.1错误的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
刚刚更新Xcode到4.3，现在我不能建立我的应用程序。我收到此错误：
Just updated Xcode to 4.3 and now I can't build my app. I'm getting this error:
Command /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang failed with exit code 254
任何人有这个问题吗？这可能只是一个编译设置，但我不知道在哪里看。
Anybody else having this problem? It's probably just a compilation setting but I'm not sure where to look.
当然，错误包括整个堆栈转储，但我没有包括为简洁起见。我希望有人会知道什么退出代码254是。尝试搜索它但找不到任何东西。
Of course, the error includes the entire stack dump, but I've not included that for sake of brevity. I'm hoping that someone will know what "exit code 254" is. Tried searching for it but couldn't find anything.
这是整个输出：
CompileC /Users/aaron/Library/Developer/Xcode/DerivedData/iDB-cvvkmobzsecywdherzjesrjswdng/Build/Intermediates/iDB.build/Debug-iphonesimulator/Flexile.build/Objects-normal/i386/SCheckBox.o iDB/SCheckBox.m normal i386 objective-c com.apple.compilers.llvm.clang.1_0.compiler
cd "/Users/aaron/Dropbox/XCode Projects/iDB"
setenv LANG en_US.US-ASCII
setenv PATH "/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin:/Applications/Xcode.app/Contents/Developer/usr/bin:/usr/bin:/bin:/usr/sbin:/sbin"
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -x objective-c -arch i386 -fmessage-length=0 -std=gnu99 -fobjc-arc -Wno-trigraphs -fpascal-strings -O0 -Werror -Wno-missing-field-initializers -Wmissing-prototypes -Wreturn-type -Wno-implicit-atomic-properties -Wformat -Wno-missing-braces -Wparentheses -Wswitch -Wunused-function -Wunused-label -Wno-unused-parameter -Wunused-variable -Wunused-value -Wno-uninitialized -Wno-unknown-pragmas -Wno-shadow -Wno-four-char-constants -Wno-sign-compare -Wno-shorten-64-to-32 -Wpointer-sign -Wno-newline-eof -Wno-selector -Wno-strict-selector-match -Wno-undeclared-selector -Wno-deprecated-implementations -DDEBUG=1 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator5.0.sdk -fexceptions -fasm-blocks -Wprotocol -Wdeprecated-declarations -mmacosx-version-min=10.6 -g -Wno-conversion -Wno-sign-conversion -fobjc-abi-version=2 -fobjc-legacy-dispatch "-DIBOutlet=__attribute__((iboutlet))" "-DIBOutletCollection(ClassName)=__attribute__((iboutletcollection(ClassName)))" "-DIBAction=void)__attribute__((ibaction)" -D__IPHONE_OS_VERSION_MIN_REQUIRED=50000 -iquote /Users/aaron/Library/Developer/Xcode/DerivedData/iDB-cvvkmobzsecywdherzjesrjswdng/Build/Intermediates/iDB.build/Debug-iphonesimulator/Flexile.build/Flexile-generated-files.hmap -I/Users/aaron/Library/Developer/Xcode/DerivedData/iDB-cvvkmobzsecywdherzjesrjswdng/Build/Intermediates/iDB.build/Debug-iphonesimulator/Flexile.build/Flexile-own-target-headers.hmap -I/Users/aaron/Library/Developer/Xcode/DerivedData/iDB-cvvkmobzsecywdherzjesrjswdng/Build/Intermediates/iDB.build/Debug-iphonesimulator/Flexile.build/Flexile-all-target-headers.hmap -iquote /Users/aaron/Library/Developer/Xcode/DerivedData/iDB-cvvkmobzsecywdherzjesrjswdng/Build/Intermediates/iDB.build/Debug-iphonesimulator/Flexile.build/Flexile-project-headers.hmap -I/Users/aaron/Library/Developer/Xcode/DerivedData/iDB-cvvkmobzsecywdherzjesrjswdng/Build/Products/Debug-iphonesimulator/include -I/Users/aaron/Library/Developer/Xcode/DerivedData/iDB-cvvkmobzsecywdherzjesrjswdng/Build/Intermediates/iDB.build/Debug-iphonesimulator/Flexile.build/DerivedSources/i386 -I/Users/aaron/Library/Developer/Xcode/DerivedData/iDB-cvvkmobzsecywdherzjesrjswdng/Build/Intermediates/iDB.build/Debug-iphonesimulator/Flexile.build/DerivedSources -F/Users/aaron/Library/Developer/Xcode/DerivedData/iDB-cvvkmobzsecywdherzjesrjswdng/Build/Products/Debug-iphonesimulator -include /Users/aaron/Library/Developer/Xcode/DerivedData/iDB-cvvkmobzsecywdherzjesrjswdng/Build/Intermediates/PrecompiledHeaders/iDB-Prefix-aojkwzmrifipbudgsdryqwbhphsf/iDB-Prefix.pch -MMD -MT dependencies -MF /Users/aaron/Library/Developer/Xcode/DerivedData/iDB-cvvkmobzsecywdherzjesrjswdng/Build/Intermediates/iDB.build/Debug-iphonesimulator/Flexile.build/Objects-normal/i386/SCheckBox.d --serialize-diagnostics /Users/aaron/Library/Developer/Xcode/DerivedData/iDB-cvvkmobzsecywdherzjesrjswdng/Build/Intermediates/iDB.build/Debug-iphonesimulator/Flexile.build/Objects-normal/i386/SCheckBox.dia -c "/Users/aaron/Dropbox/XCode Projects/iDB/iDB/SCheckBox.m" -o /Users/aaron/Library/Developer/Xcode/DerivedData/iDB-cvvkmobzsecywdherzjesrjswdng/Build/Intermediates/iDB.build/Debug-iphonesimulator/Flexile.build/Objects-normal/i386/SCheckBox.o
0 clang 0x000000010a5c15a2 _ZL15PrintStackTracePv + 34
1 clang 0x000000010a5c1a29 _ZL13SignalHandleri + 553
2 libsystem_c.dylib 0x00007fff94b6dcfa _sigtramp + 26
3 libsystem_c.dylib 0x00007fff6929a1b0 _sigtramp + 18446744072978875600
4 clang 0x0000000109ef3798 _ZL20findRetainCycleOwnerPN5clang4ExprERN12_GLOBAL__N_116RetainCycleOwnerE + 312
5 clang 0x0000000109ef35af clang::Sema::checkRetainCycles(clang::ObjCMessageExpr*) + 303
6 clang 0x00000001097efaef clang::Sema::BuildInstanceMessage(clang::Expr*, clang::QualType, clang::SourceLocation, clang::Selector, clang::ObjCMethodDecl*, clang::SourceLocation, llvm::ArrayRef<clang::SourceLocation>, clang::SourceLocation, clang::ASTMultiPtr<clang::Expr*>) + 6479
7 clang 0x00000001097ee18a clang::Sema::ActOnInstanceMessage(clang::Scope*, clang::Expr*, clang::Selector, clang::SourceLocation, llvm::ArrayRef<clang::SourceLocation>, clang::SourceLocation, clang::ASTMultiPtr<clang::Expr*>) + 138
8 clang 0x00000001097ee04b clang::Parser::ParseObjCMessageExpressionBody(clang::SourceLocation, clang::SourceLocation, clang::OpaquePtr<clang::QualType>, clang::Expr*) + 2091
9 clang 0x00000001097ed7f4 clang::Parser::ParseObjCMessageExpression() + 852
10 clang 0x0000000109765597 clang::Parser::ParseCastExpression(bool, bool, bool&, bool) + 6807
11 clang 0x0000000109763ab2 clang::Parser::ParseAssignmentExpression() + 114
12 clang 0x0000000109763a21 clang::Parser::ParseExpression() + 17
13 clang 0x00000001097b8efe clang::Parser::ParseExprStatement(clang::ParsedAttributes&) + 46
14 clang 0x00000001097634bc clang::Parser::ParseStatementOrDeclaration(clang::ASTOwningVector<clang::Stmt*, 32u>&, bool) + 1564
15 clang 0x00000001097627d9 clang::Parser::ParseCompoundStatementBody(bool) + 409
16 clang 0x0000000109763242 clang::Parser::ParseStatementOrDeclaration(clang::ASTOwningVector<clang::Stmt*, 32u>&, bool) + 930
17 clang 0x00000001097b6d0b clang::Parser::ParseIfStatement(clang::ParsedAttributes&) + 475
18 clang 0x000000010976353c clang::Parser::ParseStatementOrDeclaration(clang::ASTOwningVector<clang::Stmt*, 32u>&, bool) + 1692
19 clang 0x00000001097627d9 clang::Parser::ParseCompoundStatementBody(bool) + 409
20 clang 0x0000000109edbd30 clang::Parser::ParseLexedObjCMethodDefs(clang::Parser::LexedMethod&) + 272
21 clang 0x000000010980483e clang::Parser::ParseObjCAtEndDeclaration(clang::SourceRange) + 158
22 clang 0x00000001097e2222 clang::Parser::ParseObjCAtDirectives() + 386
23 clang 0x0000000109723e87 clang::Parser::ParseExternalDeclaration(clang::Parser::ParsedAttributesWithRange&, clang::Parser::ParsingDeclSpec*) + 759
24 clang 0x0000000109723b19 clang::Parser::ParseTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&) + 249
25 clang 0x000000010970688b clang::ParseAST(clang::Sema&, bool) + 299
26 clang 0x00000001097053d9 clang::CodeGenAction::ExecuteAction() + 857
27 clang 0x00000001096d793f clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) + 879
28 clang 0x00000001096d65cb clang::ExecuteCompilerInvocation(clang::CompilerInstance*) + 2683
29 clang 0x00000001096c8dce cc1_main(char const**, char const**, char const*, void*) + 5086
30 clang 0x00000001096a35d8 main + 648
31 clang 0x00000001096a3344 start + 52
32 clang 0x0000000000000071 start + 18446744069256629601
Stack dump:
0. Program arguments: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -cc1 -triple i386-apple-macosx10.6.0 -emit-obj -mrelax-all -disable-free -disable-llvm-verifier -main-file-name SCheckBox.m -pic-level 1 -mdisable-fp-elim -relaxed-aliasing -masm-verbose -target-cpu yonah -target-linker-version 128.2 -g -coverage-file /Users/aaron/Library/Developer/Xcode/DerivedData/iDB-cvvkmobzsecywdherzjesrjswdng/Build/Intermediates/iDB.build/Debug-iphonesimulator/Flexile.build/Objects-normal/i386/SCheckBox.o -resource-dir /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../lib/clang/3.1 -dependency-file /Users/aaron/Library/Developer/Xcode/DerivedData/iDB-cvvkmobzsecywdherzjesrjswdng/Build/Intermediates/iDB.build/Debug-iphonesimulator/Flexile.build/Objects-normal/i386/SCheckBox.d -MT dependencies -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator5.0.sdk -iquote /Users/aaron/Library/Developer/Xcode/DerivedData/iDB-cvvkmobzsecywdherzjesrjswdng/Build/Intermediates/iDB.build/Debug-iphonesimulator/Flexile.build/Flexile-generated-files.hmap -iquote /Users/aaron/Library/Developer/Xcode/DerivedData/iDB-cvvkmobzsecywdherzjesrjswdng/Build/Intermediates/iDB.build/Debug-iphonesimulator/Flexile.build/Flexile-project-headers.hmap -include-pch /Users/aaron/Library/Developer/Xcode/DerivedData/iDB-cvvkmobzsecywdherzjesrjswdng/Build/Intermediates/PrecompiledHeaders/iDB-Prefix-aojkwzmrifipbudgsdryqwbhphsf/iDB-Prefix.pch.pth -D DEBUG=1 -D IBOutlet=__attribute__((iboutlet)) -D IBOutletCollection(ClassName)=__attribute__((iboutletcollection(ClassName))) -D IBAction=void)__attribute__((ibaction) -D __IPHONE_OS_VERSION_MIN_REQUIRED=50000 -I /Users/aaron/Library/Developer/Xcode/DerivedData/iDB-cvvkmobzsecywdherzjesrjswdng/Build/Intermediates/iDB.build/Debug-iphonesimulator/Flexile.build/Flexile-own-target-headers.hmap -I /Users/aaron/Library/Developer/Xcode/DerivedData/iDB-cvvkmobzsecywdherzjesrjswdng/Build/Intermediates/iDB.build/Debug-iphonesimulator/Flexile.build/Flexile-all-target-headers.hmap -I /Users/aaron/Library/Developer/Xcode/DerivedData/iDB-cvvkmobzsecywdherzjesrjswdng/Build/Products/Debug-iphonesimulator/include -I /Users/aaron/Library/Developer/Xcode/DerivedData/iDB-cvvkmobzsecywdherzjesrjswdng/Build/Intermediates/iDB.build/Debug-iphonesimulator/Flexile.build/DerivedSources/i386 -I /Users/aaron/Library/Developer/Xcode/DerivedData/iDB-cvvkmobzsecywdherzjesrjswdng/Build/Intermediates/iDB.build/Debug-iphonesimulator/Flexile.build/DerivedSources -F/Users/aaron/Library/Developer/Xcode/DerivedData/iDB-cvvkmobzsecywdherzjesrjswdng/Build/Products/Debug-iphonesimulator -fmodule-cache-path /var/folders/1y/fbhzgfpn2ld9qxdfpgl7d_rm0000gn/T/clang-module-cache -O0 -Wno-trigraphs -Werror -Wno-missing-field-initializers -Wmissing-prototypes -Wreturn-type -Wno-implicit-atomic-properties -Wformat -Wno-missing-braces -Wparentheses -Wswitch -Wunused-function -Wunused-label -Wno-unused-parameter -Wunused-variable -Wunused-value -Wno-uninitialized -Wno-unknown-pragmas -Wno-shadow -Wno-four-char-constants -Wno-sign-compare -Wno-shorten-64-to-32 -Wpointer-sign -Wno-newline-eof -Wno-selector -Wno-strict-selector-match -Wno-undeclared-selector -Wno-deprecated-implementations -Wprotocol -Wdeprecated-declarations -Wno-conversion -Wno-sign-conversion -std=gnu99 -ferror-limit 19 -fmessage-length 0 -stack-protector 1 -fblocks -fobjc-runtime-has-arc -fobjc-runtime-has-weak -fobjc-arc -fobjc-exceptions -fexceptions -fpascal-strings -fdiagnostics-show-option -serialize-diagnostic-file /Users/aaron/Library/Developer/Xcode/DerivedData/iDB-cvvkmobzsecywdherzjesrjswdng/Build/Intermediates/iDB.build/Debug-iphonesimulator/Flexile.build/Objects-normal/i386/SCheckBox.dia -o /Users/aaron/Library/Developer/Xcode/DerivedData/iDB-cvvkmobzsecywdherzjesrjswdng/Build/Intermediates/iDB.build/Debug-iphonesimulator/Flexile.build/Objects-normal/i386/SCheckBox.o -x objective-c /Users/aaron/Dropbox/XCode Projects/iDB/iDB/SCheckBox.m
1. /Users/aaron/Dropbox/XCode Projects/iDB/iDB/SCheckBox.m:36:47: current parser token ';'
2. /Users/aaron/Dropbox/XCode Projects/iDB/iDB/SCheckBox.m:27:146: in compound statement ('{}')
3. /Users/aaron/Dropbox/XCode Projects/iDB/iDB/SCheckBox.m:29:102: in compound statement ('{}')
clang: error: unable to execute command: Segmentation fault: 11
clang: error: clang frontend command failed due to signal 2 (use -v to see invocation)
clang: note: diagnostic msg: Please submit a bug report to http://developer.apple.com/bugreporter/ and include command line arguments and all diagnostic information.
clang: note: diagnostic msg: Preprocessed source(s) and associated run script(s) are located at:
clang: note: diagnostic msg: /var/folders/1y/fbhzgfpn2ld9qxdfpgl7d_rm0000gn/T/SCheckBox-GckJrn.mi
clang: note: diagnostic msg: /var/folders/1y/fbhzgfpn2ld9qxdfpgl7d_rm0000gn/T/SCheckBox-GckJrn.sh
Command /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang failed with exit code 254
UPDATE
所以我注意到转储指的是特定类（SCheckBox.m）中的代码上的特定行。
它在一个init方法。我检查了方法，但没有找到任何错误。但是，如果我评论方法内的一切，并返回nil，代码编译。我通过并取消注释每行，直到我得到的错误。导致问题的错误是：
UPDATE So I noticed that the dump refers to specific lines on code in a specific class (SCheckBox.m). It's in an init method. I've checked over the method but could not find anything wrong with it. However, if I comment everything inside the method out and return nil, the code compiles. I went through and uncommented every line until I got the error. The error causing the problem is this:
[super.inputField addSubview:_checked];
我打算使用'self'而不是'super' ）。但super实际上有一个inputField属性。它不在子类中重新定义或覆盖。所以访问'super.inputField'vs'self.inputField'应该访问完全相同的事情（和升级Xcode之前）。好的，所以将'super'改为'self'可以解决问题。
I had intended on using 'self' instead of 'super'(which was a typo on my part). But super does in fact have a inputField property. It's not redefined or overwritten in the subclass. So accessing 'super.inputField' vs 'self.inputField' should access the exact same thing (and did before upgrading Xcode). OK, so changing 'super' to 'self' does fix the problem.
我的问题是：为什么？
推荐答案
我设法在Xcode 4.3.2上触发这个问题，试图通过NSLog输出一个就地操作的结果（返回void）。
I managed to trigger this issue on Xcode 4.3.2 by trying to output through NSLog the result of an in-place operation (which returns void).
在我的例子中，我想做的是： -
In my case, what I was trying to do was:-
NSLog(@"result = %@", [array filterUsingPredicate:predicate]);
事实上 filterUsingPredicate： -place方法返回 void 似乎已经触发了这个编译器错误。有趣的是，Xcode的as-you-type错误检测不会接受。
The fact that filterUsingPredicate: is an in-place method that returns void seems to have triggered this compiler error. It's interesting that Xcode's as-you-type error detection doesn't pick up on it.
将此更改为正确的版本： -
Changing this to the correct version:-
NSLog(@"result = %@", [array filteredArrayUsingPredicate:predicate]);
工作正常并解决问题！
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