Description:

When gdb'ing a go program, go runtime support and sources are not found.

Additional info:
* package version(s)
* config and/or log files etc.


Steps to reproduce:

See the following transcribed gdb session.
The issues are manifesting in the lines

"warning: Missing auto-load scripts referenced in section .debug_gdb_scripts"

and

"204 /build/src/release-build/src/pkg/runtime/iface.c: No such file or directory."

$ cat > hw.go
package main

import "fmt"

func main() {
fmt.Println("Hello, 世界")
}
$ go build hw.go
$ gdb hw
GNU gdb (GDB) 7.4.1
Copyright (C) 2012 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law. Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-unknown-linux-gnu".
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>...
Reading symbols from /tmp/hw...done.
warning: Missing auto-load scripts referenced in section .debug_gdb_scripts
of file /tmp/hw
Use `info auto-load-scripts [REGEXP]' to list them.
(gdb) info auto-load-scripts
Loaded Script
Missing /build/src/release-build/src/pkg/runtime/runtime-gdb.py
(gdb) !pacman -Ql go | grep runtime-gdb
go /usr/lib/go/src/pkg/runtime/runtime-gdb.py
(gdb) source /usr/lib/go/src/pkg/runtime/runtime-gdb.py
Loading Go Runtime support.
(gdb) br main.main
Breakpoint 1 at 0x400c00: file /tmp/hw.go, line 5.
(gdb) run
Starting program: /tmp/hw
[New LWP 25382]
[Switching to LWP 25382]

Breakpoint 1, main.main () at /tmp/hw.go:5
5 func main() {
(gdb) n
6 fmt.Println("Hello, 世界")
(gdb) s
runtime.convT2E (t=void) at /build/src/release-build/src/pkg/runtime/iface.c:204
204 /build/src/release-build/src/pkg/runtime/iface.c: No such file or directory.
(gdb)