From: Sasha Levin <sasha.levin@oracle.com>
To: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: vegard.nossum@oracle.com, penberg@kernel.org,
jamie.iles@oracle.com, hpa@zytor.com, mingo@redhat.com,
tglx@linutronix.de, x86@kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 2/4] x86: Move instruction decoder data into header
Date: Mon, 14 Apr 2014 22:28:47 -0400 [thread overview]
Message-ID: <534C995F.9040101@oracle.com> (raw)
In-Reply-To: <534C8E2D.9020506@hitachi.com>
On 04/14/2014 09:41 PM, Masami Hiramatsu wrote:
> (2014/04/15 2:44), Sasha Levin wrote:
>> > Right now we generate data for the instruction decoder and place it
>> > as a code file which gets #included directly (yuck).
>> >
>> > Instead, make it a header which will also be usable by other code
>> > that wants to use the data in there.
> Hmm, making the generated data into a header file may clone
> the data table instances for each object file. Since the inat
> table is not so small, I think we'd better just export the tables.
The tables are defined as static, so the compiler drops them
once it detects they are not used.
I feel it would be easier to let the compiler do it's job rather
than do optimizations we don't need to do and which will complicate
the code quite a bit.
Thanks,
Sasha
next prev parent reply other threads:[~2014-04-15 2:29 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-04-14 17:44 [PATCH 1/4] kmemcheck: add additional selfchecks Sasha Levin
2014-04-14 17:44 ` [PATCH 2/4] x86: Move instruction decoder data into header Sasha Levin
2014-04-15 1:41 ` Masami Hiramatsu
2014-04-15 2:28 ` Sasha Levin [this message]
2014-04-15 3:10 ` Masami Hiramatsu
2014-04-15 14:24 ` Sasha Levin
2014-04-16 3:06 ` Masami Hiramatsu
2014-04-14 17:44 ` [PATCH 3/4] x86/insn: Extract more information about instructions Sasha Levin
2014-04-15 3:12 ` Masami Hiramatsu
2014-04-15 4:36 ` Masami Hiramatsu
2014-04-15 15:10 ` Sasha Levin
2014-04-16 3:26 ` H. Peter Anvin
2014-04-16 3:47 ` Sasha Levin
2014-04-16 3:54 ` H. Peter Anvin
2014-04-16 4:03 ` Sasha Levin
2014-04-16 4:31 ` H. Peter Anvin
2014-04-16 5:30 ` Masami Hiramatsu
2014-04-17 15:20 ` Sasha Levin
2014-04-17 15:28 ` H. Peter Anvin
2014-04-17 17:31 ` Sasha Levin
2014-04-18 3:40 ` Masami Hiramatsu
2014-04-18 3:45 ` H. Peter Anvin
2014-04-18 15:47 ` Sasha Levin
2014-04-18 16:48 ` H. Peter Anvin
2014-04-16 5:44 ` Masami Hiramatsu
2014-04-17 15:33 ` Sasha Levin
2014-04-18 3:25 ` Masami Hiramatsu
2014-04-14 17:44 ` [PATCH 4/4] kmemcheck: Switch to using kernel disassembler Sasha Levin
2014-04-15 8:17 ` Pekka Enberg
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