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// RUN: %empty-directory(%t)
// RUN: %target-build-swift %s -parse-as-library -Onone -o %t/BacktraceWithLimitAndTop
// RUN: %target-codesign %t/BacktraceWithLimitAndTop
// RUN: %target-run %t/BacktraceWithLimitAndTop | %FileCheck %s
// UNSUPPORTED: use_os_stdlib
// UNSUPPORTED: back_deployment_runtime
// REQUIRES: executable_test
// REQUIRES: backtracing
// REQUIRES: OS=macosx || OS=linux-gnu
import _Backtracing
func doFrames(_ count: Int, limit: Int, top: Int) {
if count <= 0 {
let backtrace = try! Backtrace.capture(limit: limit, top: top)
print(backtrace)
} else {
doFrames(count - 1, limit: limit, top: top)
}
}
@main
struct BacktraceWithTop {
static func main() {
// CHECK: 0{{[ \t]+}}0x{{[0-9a-f]+}} [ra]
// CHECK-NEXT: 1{{[ \t]+}}0x{{[0-9a-f]+}} [ra]
// CHECK-NEXT: 2{{[ \t]+}}0x{{[0-9a-f]+}} [ra]
// CHECK-NEXT: 3{{[ \t]+}}0x{{[0-9a-f]+}} [ra]
// CHECK-NEXT: 4{{[ \t]+}}0x{{[0-9a-f]+}} [ra]
// CHECK-NEXT: 5{{[ \t]+}}...
// CHECK-NEXT: {{[0-9]+[ \t]+}}0x{{[0-9a-f]+}} [ra]
// CHECK-NEXT: {{[0-9]+[ \t]+}}0x{{[0-9a-f]+}} [ra]
// CHECK-NEXT: {{[0-9]+[ \t]+}}0x{{[0-9a-f]+}} [ra]
// CHECK-NEXT: {{[0-9]+[ \t]+}}0x{{[0-9a-f]+}} [ra]
doFrames(1000, limit: 10, top: 4)
print("")
// CHECK: 0{{[ \t]+}}...
// CHECK-NEXT: {{[0-9]+[ \t]+}}0x{{[0-9a-f]+}} [ra]
// CHECK-NEXT: {{[0-9]+[ \t]+}}0x{{[0-9a-f]+}} [ra]
// CHECK-NEXT: {{[0-9]+[ \t]+}}0x{{[0-9a-f]+}} [ra]
// CHECK-NEXT: {{[0-9]+[ \t]+}}0x{{[0-9a-f]+}} [ra]
// CHECK-NEXT: {{[0-9]+[ \t]+}}0x{{[0-9a-f]+}} [ra]
// CHECK-NEXT: {{[0-9]+[ \t]+}}0x{{[0-9a-f]+}} [ra]
// CHECK-NEXT: {{[0-9]+[ \t]+}}0x{{[0-9a-f]+}} [ra]
// CHECK-NEXT: {{[0-9]+[ \t]+}}0x{{[0-9a-f]+}} [ra]
// CHECK-NEXT: {{[0-9]+[ \t]+}}0x{{[0-9a-f]+}} [ra]
doFrames(1000, limit: 10, top: 10)
print("")
// CHECK: 0{{[ \t]+}}0x{{[0-9a-f]+}} [ra]
// CHECK-NEXT: 1{{[ \t]+}}0x{{[0-9a-f]+}} [ra]
// CHECK-NEXT: 2{{[ \t]+}}0x{{[0-9a-f]+}} [ra]
// CHECK-NEXT: 3{{[ \t]+}}0x{{[0-9a-f]+}} [ra]
// CHECK-NEXT: 4{{[ \t]+}}0x{{[0-9a-f]+}} [ra]
// CHECK-NEXT: 5{{[ \t]+}}0x{{[0-9a-f]+}} [ra]
doFrames(6, limit: 30, top: 4)
}
}
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