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[SR-372] Swift emits a segfaulting program for this source listing #42991

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drewcrawford opened this issue Dec 25, 2015 · 4 comments
Open

[SR-372] Swift emits a segfaulting program for this source listing #42991

drewcrawford opened this issue Dec 25, 2015 · 4 comments
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bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. compiler The Swift compiler in itself non-optimized only Flag: An issue whose reproduction requires non-optimized compilation

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@drewcrawford
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Previous ID SR-372
Radar None
Original Reporter @drewcrawford
Type Bug
Environment

Apple Swift version 2.2-dev (LLVM 3ebdbb2c7e, Clang f66c5bb67b, Swift 17fe37d)
Target: x86_64-apple-macosx10.9

OSX 10.11.2 (15C50)

Additional Detail from JIRA
Votes 0
Component/s Compiler
Labels Bug, NotOptimizedOnly
Assignee None
Priority Medium

md5: e7e51b2ff195e82069296a8a1d620811

relates to:

  • SR-392 Creating a String from an object of type ErrorType segfaults

Issue Description:

public enum Error: ErrorType {
    case ExitStatus(Int32, [String])
    case ExitSignal
}

extension Error: CustomStringConvertible {
    public var description: String {
        switch self {
        case .ExitStatus(let code, let args):
            return "exit(\(code)): \(args)"
        case .ExitSignal:
            return "Child process exited with signal"
        }
    }
}

func throwMe() throws {
    throw Error.ExitStatus(2, ["a"])
}
do {
    try throwMe()
} 
catch {
    print("\(error)")
}

Reproduction steps: `swift test.swift`

Expected results: Program prints an error message

Actual results:

0  swift                    0x000000010f24780b llvm::sys::PrintStackTrace(llvm::raw_ostream&) + 43
1  swift                    0x000000010f246ac6 llvm::sys::RunSignalHandlers() + 70
2  swift                    0x000000010f247eb2 SignalHandler(int) + 322
3  libsystem_platform.dylib 0x00007fff92cd2eaa _sigtramp + 26
4  libsystem_platform.dylib 0x0000000000000001 _sigtramp + 1832046961
5  libswiftCore.dylib       0x0000000111f9696d _TTSf4s___TFSSg16debugDescriptionSS + 461
6  libswiftCore.dylib       0x0000000111f440ac _TTWSSs28CustomDebugStringConvertiblesFS_g16debugDescriptionSS + 44
7  libswiftCore.dylib       0x0000000111efd829 _TTSg5P__SSSSs16OutputStreamTypes___TFs20_debugPrint_unlockedu0_R_s16OutputStreamTyperFTxRq__T_ + 281
8  libswiftCore.dylib       0x0000000111f9a2bf _TTSf4g_gs_gs_n___TTSg5SSSSs16OutputStreamTypes___TFs11_debugPrintuRxs16OutputStreamTyperFTGSaP__9separatorSS10terminatorSS8toStreamRx_T_ + 319
9  libswiftCore.dylib       0x0000000111e44232 _TFSa16_makeDescriptionfT7isDebugSb_SS + 930
10 libswiftCore.dylib       0x0000000111e443a5 _TTWurGSax_s23CustomStringConvertiblesFS_g11descriptionSS + 37
11 libswiftCore.dylib       0x0000000111efc8a7 _TFs15_print_unlockedu0_R_s16OutputStreamTyperFTxRq__T_ + 903
12 libswiftCore.dylib       0x0000000111ed67d0 _TFSSCurfT26stringInterpolationSegmentx_SS + 64
13 libswiftCore.dylib       0x000000011188b4ca _TFSSCurfT26stringInterpolationSegmentx_SS + 4288367930
14 libswiftCore.dylib       0x000000011188b593 _TFSSCurfT26stringInterpolationSegmentx_SS + 4288368131
15 libswiftCore.dylib       0x0000000111efc8a7 _TFs15_print_unlockedu0_R_s16OutputStreamTyperFTxRq__T_ + 903
16 libswiftCore.dylib       0x0000000111ed67d0 _TFSSCurfT26stringInterpolationSegmentx_SS + 64
17 libswiftCore.dylib       0x000000011188b149 _TFSSCurfT26stringInterpolationSegmentx_SS + 4288367033
18 swift                    0x000000010d139251 llvm::MCJIT::runFunction(llvm::Function*, llvm::ArrayRef<llvm::GenericValue>) + 1345
19 swift                    0x000000010d13c5bf llvm::ExecutionEngine::runFunctionAsMain(llvm::Function*, std::__1::vector<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > > > const&, char const* const*) + 1231
20 swift                    0x000000010d007b40 swift::RunImmediately(swift::CompilerInstance&, std::__1::vector<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > > > const&, swift::IRGenOptions&, swift::SILOptions const&) + 2752
21 swift                    0x000000010cb192d3 performCompile(swift::CompilerInstance&, swift::CompilerInvocation&, llvm::ArrayRef<char const*>, int&) + 15187
22 swift                    0x000000010cb14b7a frontend_main(llvm::ArrayRef<char const*>, char const*, void*) + 2794
23 swift                    0x000000010cb10147 main + 2855
24 libdyld.dylib            0x00007fff96afa5ad start + 1
25 libdyld.dylib            0x000000000000000c start + 1766873696
Stack dump:
0.  Program arguments: /Library/Developer/Toolchains/swift-2.2-SNAPSHOT-2015-12-22-a.xctoolchain/usr/bin/swift -frontend -interpret test.swift -target x86_64-apple-macosx10.9 -enable-objc-interop -sdk /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.11.sdk -color-diagnostics -module-name test
Segmentation fault: 11
@gottesmm
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Is this with optimization enabled?

@drewcrawford
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It segfaults with and without optimizations enabled.

@gottesmm
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Thanks!

@Dante-Broggi
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I believe this has been fixed. if so, it should be closed.

@swift-ci swift-ci transferred this issue from apple/swift-issues Apr 25, 2022
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bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. compiler The Swift compiler in itself non-optimized only Flag: An issue whose reproduction requires non-optimized compilation
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@drewcrawford @gottesmm @Dante-Broggi