| // run | |
| // Copyright 2019 The Go Authors. All rights reserved. | |
| // Use of this source code is governed by a BSD-style | |
| // license that can be found in the LICENSE file. | |
| // Make sure that the line number is reported correctly | |
| // for faulting instructions. | |
| package main | |
| import ( | |
| "fmt" | |
| "runtime" | |
| ) | |
| var x byte | |
| var p *byte | |
| //go:noinline | |
| func f() { | |
| q := p | |
| x = 11 // line 23 | |
| *q = 12 // line 24 | |
| } | |
| func main() { | |
| defer func() { | |
| recover() | |
| var pcs [10]uintptr | |
| n := runtime.Callers(1, pcs[:]) | |
| frames := runtime.CallersFrames(pcs[:n]) | |
| for { | |
| f, more := frames.Next() | |
| if f.Function == "main.f" && f.Line != 24 { | |
| panic(fmt.Errorf("expected line 24, got line %d", f.Line)) | |
| } | |
| if !more { | |
| break | |
| } | |
| } | |
| }() | |
| f() | |
| } |