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It can be hard to find the crashed thread. This always shows it first, before any other threads. rdar://164566321
86 lines
2.6 KiB
Swift
86 lines
2.6 KiB
Swift
// RUN: %empty-directory(%t)
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// RUN: %target-build-swift %s -Onone -g -o %t/CrashWithThreads
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// RUN: %target-codesign %t/CrashWithThreads
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// RUN: (env SWIFT_BACKTRACE=enable=yes,cache=no,swift-backtrace=%backtracer %target-run %t/CrashWithThreads 2>&1 || true) | %FileCheck -vv %s -dump-input-filter=all
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// UNSUPPORTED: use_os_stdlib
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// UNSUPPORTED: back_deployment_runtime
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// UNSUPPORTED: asan
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// REQUIRES: executable_test
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// REQUIRES: backtracing
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// REQUIRES: OS=macosx || OS=linux-gnu
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#if canImport(Darwin)
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import Darwin
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#elseif canImport(Glibc)
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import Glibc
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#elseif canImport(Android)
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import Android
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#elseif os(Windows)
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import CRT
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#else
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#error("Unsupported platform")
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#endif
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func reallyCrashMe() {
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print("I'm going to crash now")
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let ptr = UnsafeMutablePointer<Int>(bitPattern: 4)!
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ptr.pointee = 42
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}
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func crashMe() {
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reallyCrashMe()
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}
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func spawnThread(_ shouldCrash: Bool) {
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#if os(Linux)
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var thread: pthread_t = 0
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#elseif os(macOS)
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var thread = pthread_t(nil)
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#endif
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if shouldCrash {
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pthread_create(&thread, nil, { _ in
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crashMe()
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// this should not be run
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while (true) {
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sleep(10)
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}
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}, nil)
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} else {
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pthread_create(&thread, nil, { _ in
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while (true) {
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sleep(10)
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}
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}, nil)
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}
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}
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let crashingThreadIndex = (1..<10).randomElement()
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for threadIndex in 0..<10 {
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spawnThread(threadIndex == crashingThreadIndex)
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}
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while (true) {
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sleep(10)
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}
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// CHECK: *** Program crashed: Bad pointer dereference at 0x{{0+}}4 ***
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// make sure there are no threads before the crashing thread (rdar://164566321)
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// CHECK-NOT: Thread {{[0-9]+}}:
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// CHECK: Thread {{[1-9]+}} {{(".*" )?}}crashed:
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// CHECK: 0 0x{{[0-9a-f]+}} reallyCrashMe() + {{[0-9]+}} in CrashWithThreads at {{.*}}/CrashWithThreads
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// CHECK-NEXT: 1 [ra] 0x{{[0-9a-f]+}} crashMe() + {{[0-9]+}} in CrashWithThreads at {{.*}}/CrashWithThreads
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// CHECK-NEXT: 2 [ra] 0x{{[0-9a-f]+}} closure #{{[0-9]}} in spawnThread(_:) + {{[0-9]+}} in CrashWithThreads at {{.*}}/CrashWithThreads
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// CHECK-NEXT: 3 [ra] [thunk] 0x{{[0-9a-f]+}} @objc closure #{{[0-9]}} in spawnThread(_:) + {{[0-9]+}} in CrashWithThreads at {{.*}}<compiler-generated>
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// CHECK: Registers:
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// CHECK: Images ({{[0-9]+}} omitted):
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// CHECK: {{0x[0-9a-f]+}}–{{0x[0-9a-f]+}}{{ +}}{{([0-9a-f]+|<no build ID>)}}{{ +}}CrashWithThreads{{ +}}{{.*}}/CrashWithThreads
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