misc/gdb: gdb picks wrong i from two variables both named i #6913
Description
In the demonstration below, when stopped at line 11, gdb reports i being 0 rather than
the correct local value of 32.
package main
import (
"os"
"fmt"
)
func main() {
i := int64(0)
if os.Args[0] != "blah" {
i := 32
B => fmt.Printf("i = %v\n", i) // line 11
}
i++
}
GNU gdb (Ubuntu/Linaro 7.4-2012.04-0ubuntu2.1) 7.4-2012.04
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-linux-gnu".
For bug reporting instructions, please see:
<http://bugs.launchpad.net/gdb-linaro/>;...
Reading symbols from /home/jaten/gdblies2...done.
Loading Go Runtime support.
(gdb) break gdblies2.go:11
Breakpoint 1 at 0x400ca6: file /home/jaten/gdblies2.go, line 11.
(gdb) run
Starting program: /home/jaten/gdblies2
warning: no loadable sections found in added symbol-file system-supplied DSO at
0x7ffff7ffd000
[Inferior 1 (process 23017) exited normally]
(gdb) run
`/home/jaten/gdblies2' has changed; re-reading symbols.
Starting program: /home/jaten/gdblies2
Breakpoint 1, main.main () at /home/jaten/gdblies2.go:11
(gdb) p i
$1 = 0
(gdb) n
[New LWP 23035]
i = 32
[LWP 23035 exited]
[Inferior 1 (process 23033) exited normally]
(gdb)
ubuntu 12.04 amd64
go 1.2rc3
built with: go build -gcflags "-N -l" gdblies2.go