Re: [PATCH] gdb: Disable address space randomization for a test

[Paul Koning <paulkoning@comcast.net>]

> On Jul 30, 2018, at 2:50 PM, Andrew Burgess <andrew.burgess@embecosm.com> wrote:
> 
> The gdb.opt/inline-break.exp test script relies on capturing a $pc
> value in one run of GDB, then restarting GDB and placing a breakpoint
> at the previously captured $pc and checking we get the expected
> behaviour.
> 
> With address space randomization on then the captured $pc value is
> almost never valid in the second run of GDB, and so the test fails.
> 
> Disabling address space randomization where appropriate fixes this
> issue.
> 
> ...
> 
> +    # At the end of this test we store a $pc value, then restart GDB,
> +    # and use this $pc value to place a breakpoint.  If address space
> +    # randomization is on, then the chance of this $pc value being
> +    # correct in a second GDB instance is pretty small.
> +    gdb_test "set disable-randomization off"

Does that turn off address randomization?  The keyword implies the opposite (double negative, so "disable... off" means "turn on").

Also, does this work on every target OS?

	paul