linux-kernel - Re: [PATCH v5 01/20] scripts/gdb: Add infrastructure

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Message-ID: <87liarkhyu.fsf@fleche.redhat.com>
Date:	Wed, 13 Feb 2013 14:43:37 -0700
From:	Tom Tromey <tromey@...hat.com>
To:	Jan Kiszka <jan.kiszka@...mens.com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org,
	Jason Wessel <jason.wessel@...driver.com>,
	kgdb-bugreport@...ts.sourceforge.net,
	Andi Kleen <andi@...stfloor.org>,
	Ben Widawsky <ben@...dawsk.net>,
	Borislav Petkov <bp@...en8.de>, Michal Marek <mmarek@...e.cz>,
	linux-kbuild@...r.kernel.org
Subject: Re: [PATCH v5 01/20] scripts/gdb: Add infrastructure

>>>>> "Jan" == Jan Kiszka <jan.kiszka@...mens.com> writes:

Jan> +if gdb_version < "7.1":
Jan> +	print "NOTE: gdb 7.1 or later required for Linux helper scripts " \
Jan> +	      "to work."

FWIW you can just directly feature-test for the things you know you need.
Like:  if not hasattr(gdb, 'parse_and_eval'): ...
In this case, 7.1 is old enough that it probably doesn't matter.
For newer things, though, it is better to feature-test because distros
sometimes forward-port patches, so the version number isn't a reliable
indicator.

Tom
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