//export G2
func G2() {
pc := make([]uintptr, 32)
n := runtime.Callers(0, pc)
cf := runtime.CallersFrames(pc[:n])
var frames []runtime.Frame
for {
frame, more := cf.Next()
frames = append(frames, frame)
if !more {
break
}
}
want := []struct {
function string
line int
}{
{"main.G2", 0},
{"cFunction", 0x10200},
{"cFunction", 0x200},
{"cFunction", 0x10201},
{"cFunction", 0x201},
{"main.G1", 0},
{"cFunction", 0x10100},
{"cFunction", 0x100},
{"main.TracebackContext", 0},
}
ok := true
i := 0
wantLoop:
for _, w := range want {
for ; i < len(frames); i++ {
if w.function == frames[i].Function {
if w.line != 0 && w.line != frames[i].Line {
fmt.Printf("found function %s at wrong line %#x (expected %#x)\n", w.function, frames[i].Line, w.line)
ok = false
}
i++
continue wantLoop
}
}
fmt.Printf("did not find function %s in\n", w.function)
for _, f := range frames {
fmt.Println(f)
}
ok = false
break
}
tracebackOK = ok
if got := C.getContextCount(); got != 2 {
fmt.Printf("at bottom contextCount == %d, expected 2\n", got)
tracebackOK = false
}
}
func TracebackContext() {
runtime.SetCgoTraceback(0, unsafe.Pointer(C.tcTraceback), unsafe.Pointer(C.tcContext), unsafe.Pointer(C.tcSymbolizer))
C.C1()
if got := C.getContextCount(); got != 0 {
fmt.Printf("at end contextCount == %d, expected 0\n", got)
tracebackOK = false
}
if tracebackOK {
fmt.Println("OK")
}
}