| // Copyright 2011 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. |
| // Package debug contains facilities for programs to debug themselves while |
| // PrintStack prints to standard error the stack trace returned by Stack. |
| // Stack returns a formatted stack trace of the goroutine that calls it. |
| // For each routine, it includes the source line information and PC value, |
| // then attempts to discover, for Go functions, the calling function or |
| buf := make([]byte, 1024) |
| n := runtime.Stack(buf, false) |
| buf = make([]byte, 2*len(buf)) |