[SR-14789] Linux - Getting value from property InputStream.streamError traps.

[swift-ci]

Previous ID	SR-14789
Radar	rdar://problem/79456450
Original Reporter	GalenRhodes1967 (JIRA User)
Type	Bug

Environment

• Ubuntu 20.04.2 LTS (GNU/Linux 5.4.0-74-generic x86_64)

• • Swift version 5.4 (swift-5.4-RELEASE) Target: x86_64-unknown-linux-gnu

• Ubuntu 20.04.2 LTS (GNU/Linux 5.8.0-55-generic x86_64)

• • Swift version 5.4 (swift-5.4-RELEASE) Target: x86_64-unknown-linux-gnu

• Ubuntu 20.04.2 LTS (GNU/Linux 5.4.0-1036-raspi aarch64) - Raspberry PI 4 (4GB)

• • Swift version 5.5-dev (LLVM c64e53b8742ea89, Swift 3f6eb2f8a0a1287) Target: aarch64-unknown-linux-gnu

• Ubuntu 20.04.2 LTS (GNU/Linux 4.9.241-70 aarch64) - ODROID C4

• • Swift version 5.5-dev (LLVM c64e53b8742ea89, Swift 3f6eb2f8a0a1287) Target: aarch64-unknown-linux-gnu

Additional Detail from JIRA

Votes	0
Component/s	Foundation, Standard Library
Labels	Bug
Assignee	None
Priority	Medium

md5: 8041e548b25e485dcc7fa65e64e981dc

Issue Description:

Attempting to read the value of property streamError in InputStream class causes a trap with the error message "Illegal Instruction" on Linux. I've tried this on 4 different Linux machines. Works fine in macOS.

import Foundation
import CoreFoundation

let testDataDir: String = "Tests/RubiconTests/Files"

guard let inputStream = InputStream(fileAtPath: "\(testDataDir)/Test_UTF-8.xml") else {
    print("Unable to create input stream!")
    exit(1)
}
inputStream.open()
if let e = inputStream.streamError { // <----- Crashes here.
    print("File not opened: \(e.localizedDescription)")
    exit(1)
}
var array  = [ UInt8 ](repeating: 0, count: 100)
let result = inputStream.read(&array, maxLength: 100)
guard result >= 0 else {
    let e   = inputStream.streamError // <----- Crashes here.
    let msg = (e?.localizedDescription ?? "Unknown Error")
    print("Error reading file: \(msg)")
    exit(1)
}
let str = String(bytes: array, encoding: .utf8)
print(str ?? "???")
inputStream.close()
exit(0)

[typesanitizer]

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