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[SR-12651] Segmentation Fault when using Data in script #55095

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swift-ci opened this issue Apr 22, 2020 · 1 comment
Open

[SR-12651] Segmentation Fault when using Data in script #55095

swift-ci opened this issue Apr 22, 2020 · 1 comment
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bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. compiler The Swift compiler in itself crash Bug: A crash, i.e., an abnormal termination of software

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@swift-ci
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Previous ID SR-12651
Radar rdar://problem/62481586
Original Reporter MaxChuquimia (JIRA User)
Type Bug
Environment

macOS 10.15.2 (19C57)

MacBook Pro (15-inch, 2019)

Xcode 11.4 (11E146)

Swift 5.2

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

md5: 765f6c0923fec2b02787945b60247f94

Issue Description:

Since installing Xcode 11.4 on my computer, some of my scripts have started failing with:

Stack dump:
0.  Program arguments: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swift -frontend -interpret - -enable-objc-interop -stack-check -sdk /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.15.sdk -color-diagnostics -module-name main 
1.  Apple Swift version 5.2 (swiftlang-1103.0.32.1 clang-1103.0.32.29)
2.  While running user code "<stdin>"
0  swift                    0x000000010668d4ea PrintStackTraceSignalHandler(void*) + 42
1  swift                    0x000000010668ccc0 SignalHandler(int) + 352
2  libsystem_platform.dylib 0x00007fff6c71242d _sigtramp + 29
3  libsystem_platform.dylib 0x00007ffeed8c3fe8 _sigtramp + 2166037464
4  swift                    0x00000001024109ba llvm::MCJIT::runFunction(llvm::Function*, llvm::ArrayRef<llvm::GenericValue>) + 458
5  swift                    0x0000000102417a2b 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*) + 2011
6  swift                    0x00000001023ecaea performCompileStepsPostSILGen(swift::CompilerInstance&, swift::CompilerInvocation&, std::__1::unique_ptr<swift::SILModule, std::__1::default_delete<swift::SILModule> >, bool, llvm::PointerUnion<swift::ModuleDecl*, swift::SourceFile*>, swift::PrimarySpecificPaths const&, bool, int&, swift::FrontendObserver*, swift::UnifiedStatsReporter*) + 14362
7  swift                    0x00000001023e14a5 swift::performFrontend(llvm::ArrayRef<char const*>, char const*, void*, swift::FrontendObserver*) + 55813
8  swift                    0x00000001023574d3 main + 1283
9  libdyld.dylib            0x00007fff6c5197fd start + 1
Segmentation fault: 11

I've narrowed down the issue - it seems to occur whenever I use Data in a script. The easiest way to reproduce this is by running the following in Terminal:

echo "import Foundation; print(Data())" | swift -

Changing Data to String (for example) does not induce the crash. I saw another open issue that seemed to be similar but it was to do with FileManager - however that too is fine for me.

I can work around this issue with export DEVELOPER_DIR=/Applications/Xcode11.3.1.app/Contents/Developer before running my scripts. Xcode projects themselves are unaffected.
@beccadax
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@swift-ci create

@swift-ci swift-ci transferred this issue from apple/swift-issues Apr 25, 2022
@AnthonyLatsis AnthonyLatsis added the crash Bug: A crash, i.e., an abnormal termination of software label Dec 12, 2022
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bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. compiler The Swift compiler in itself crash Bug: A crash, i.e., an abnormal termination of software
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@beccadax @swift-ci @AnthonyLatsis