Description
What version of Go are you using (go version)?
$ go version go version go1.16 linux/amd64
Does this issue reproduce with the latest release?
yes
What operating system and processor architecture are you using (go env)?
go env Output
$ go env GO111MODULE="on" GOARCH="amd64" GOBIN="" GOCACHE="/root/.cache/go-build" GOENV="/root/.config/go/env" GOEXE="" GOFLAGS="" GOHOSTARCH="amd64" GOHOSTOS="linux" GOINSECURE=
What did you do?
package main
import (
"fmt"
"runtime"
)
func printMyName() string {
pc, _, _, _ := runtime.Caller(1)
return runtime.FuncForPC(pc).Name()
}
func printCallerName() string {
pc, _, _, _ := runtime.Caller(2)
return runtime.FuncForPC(pc).Name()
}
func Bar() {
fmt.Printf("I am %s, %s call me!\n", printMyName(), printCallerName())
trace()
}
func trace() {
fmt.Printf(""I am %s, %s call me!\n", printMyName(), printCallerName())
pc := make([]uintptr, 10) // at least 1 entry needed
n := runtime.Callers(0, pc)
for i := 0; i < n; i++ {
f := runtime.FuncForPC(pc[i])
file, line := f.FileLine(pc[i])
fmt.Printf("%s:%d %s\n", file, line, f.Name())
}
}
func main() {
Bar()
}What did you expect to see?
output info by go1.10:
I am main.Bar, main.main call me!
I am main.trace, main.Bar call me!
/usr/lib/go-1.10/src/runtime/extern.go:212 runtime.Callers
/data/163851302034758975.go:24 main.trace
/data/163851302034758975.go:19 main.Bar
/data/163851302034758975.go:46 main.main
/usr/lib/go-1.10/src/runtime/proc.go:207 runtime.main
/usr/lib/go-1.10/src/runtime/asm_amd64.s:2362 runtime.goexit
What did you see instead?
output info by go1.16:
I am main.Bar, main.main call me!
I am main.trace, main.Bar call me!
/usr/local/go/src/runtime/extern.go:229 runtime.Callers
/usr/local/go/src/runtime/extern.go:229 runtime.Callers ---> here is where i think it should be main.trace
/data/code/learn_go/func_name.go:19 main.Bar
/data/code/learn_go/func_name.go:46 main.main
/usr/local/go/src/runtime/proc.go:234 runtime.main
/usr/local/go/src/runtime/asm_amd64.s:1372 runtime.goexit