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[SR-6217] Simple executable segmentation fault with Swift 4.0 (Linux) #48769

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swift-ci opened this issue Oct 25, 2017 · 6 comments
Open

[SR-6217] Simple executable segmentation fault with Swift 4.0 (Linux) #48769

swift-ci opened this issue Oct 25, 2017 · 6 comments
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bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. compiler The Swift compiler in itself

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@swift-ci
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Previous ID SR-6217
Radar None
Original Reporter Neon12345 (JIRA User)
Type Bug
Environment

Linux x64_64 Debian Stretch

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

md5: 4e04a273e4b804f683381423cdada4ad

Issue Description:

I use the release version of [Swift 4.0|https://swift.org/builds/swift-4.0-release/ubuntu1610/swift-4.0-RELEASE/swift-4.0-RELEASE-ubuntu16.10.tar.gz] with Debian Stretch.

The resulting binary executable of a simple compiled print statement seems faulty.
It segfaults very early with a call to zero and the init_array section shows this:

~$ objdump -s -j .init_array Test

Test: file format elf64-x86-64

Contents of section .init_array:
404d70 60094000 00000000 00000000 00000000 `.@.............
@belkadan
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What's the full source of the file you're compiling, and how are you invoking the compiler?

@swift-ci
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Comment by Neon (JIRA)

Test.swift:

print(123)

~$ swiftc Test.swift -o Test

~$ ./Test

@belkadan
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Well, that certainly is suspicious! Thanks.

@belkadan
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It is of course entirely possible that we're hitting a point of incompatibility between Debian and Ubuntu systems. Debian's not officially supported.

@swift-ci
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Comment by Neon (JIRA)

It is working again with the 4.1-dev snapshot. But with clang++ missing it just fails without an error.

@belkadan
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Ah, that's SR-6082. The package manager will diagnose this properly now, but plain swiftc won't yet.

@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
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@belkadan @swift-ci