| package main |
| |
| import ( |
| "fmt" |
| "os" |
| ) |
| |
| type big struct { |
| pile [768]int8 |
| } |
| |
| type thing struct { |
| name string |
| next *thing |
| self *thing |
| stuff []big |
| } |
| |
| func test(t *thing, u *thing) { |
| if t.next != nil { |
| return |
| } |
| fmt.Fprintf(os.Stderr, "%s\n", t.name) |
| u.self = u |
| t.self = t |
| t.next = u |
| for _, p := range t.stuff { |
| if isFoo(t, p) { |
| return |
| } |
| } |
| } |
| |
| //go:noinline |
| func isFoo(t *thing, b big) bool { |
| return true |
| } |
| |
| func main() { |
| growstack() // Use stack early to prevent growth during test, which confuses gdb |
| t := &thing{name: "t", self: nil, next: nil, stuff: make([]big, 1)} |
| u := thing{name: "u", self: t, next: t, stuff: make([]big, 1)} |
| test(t, &u) |
| } |
| |
| var snk string |
| |
| //go:noinline |
| func growstack() { |
| snk = fmt.Sprintf("%#v,%#v,%#v", 1, true, "cat") |
| } |
