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From: David Long <dave.long@linaro.org>
To: "Jon Medhurst (Tixy)" <tixy@linaro.org>,
	Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Taras Kondratiuk <taras.kondratiuk@linaro.org>,
	linux-arm-kernel@lists.infradead.org,
	Russell King <linux@arm.linux.org.uk>,
	Rabin Vincent <rabin@rab.in>, Oleg Nesterov <oleg@redhat.com>,
	Srikar Dronamraju <srikar@linux.vnet.ibm.com>,
	Ingo Molnar <mingo@redhat.com>,
	Ananth N Mavinakayanahalli <ananth@in.ibm.com>,
	Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com>,
	davem@davemloft.net, Peter Zijlstra <a.p.zijlstra@chello.nl>,
	Paul Mackerras <paulus@samba.org>,
	Arnaldo Carvalho de Melo <acme@ghostprotocols.net>,
	linux-kernel@vger.kernel.org,
	Linaro Networking <linaro-networking@linaro.org>
Subject: Re: [PATCH v3 00/15] uprobes: Add uprobes support for ARM
Date: Thu, 05 Dec 2013 15:17:46 -0500	[thread overview]
Message-ID: <52A0DF6A.1010402@linaro.org> (raw)
In-Reply-To: <529F6B88.2050005@linaro.org>

Masami/Tixy,

As I just noted in a previous email the kprobes.h thing has come back to 
haunt me.  Something more is needed in my last patchset.  Tixy's 
suggestion regarding the arch_specific_insn structure:

> However, I also wonder if we should instead leave arch_specific_insn as
> a kprobes specific structure and on ARM define it in terms of a new more
> generic 'struct probe_insn'? The drawback with that is that we'd
> probably end up with a struct just containing a single member which
> seems a bit redundant:
>
> struct arch_specific_insn {
> 	struct probe_insn pinsn;
> };
>
> Thought's anyone?

...got me thinking.  When I do as he suggests and create a new 
arch-specific structure for sharing between kprobes and uprobes then it 
turns out simply #define'ing the arch_specific_insn structure tag to the 
new structure tag in arch/arm/include/kprobes.h makes everything happy. 
  When KPROBES is not configured that include file is (still) not 
included and the generic kprobes.h include file still continues to make 
a dummy structure for it.  My question is:  Is it too hacky to use a 
#define for a structure tag this way?

-dl


  parent reply	other threads:[~2013-12-05 20:17 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-11-27  2:53 [PATCH v3 00/15] uprobes: Add uprobes support for ARM David Long
2013-11-27  2:53 ` [PATCH v3 01/15] uprobes: allow ignoring of probe hits David Long
2013-11-28 18:41   ` Oleg Nesterov
2013-11-27  2:53 ` [PATCH v3 02/15] ARM: move shared uprobe/kprobe definitions into new include file David Long
2013-11-27  2:53 ` [PATCH v3 03/15] ARM: Move generic arm instruction parsing code to new files for sharing between features David Long
2013-11-27  2:53 ` [PATCH v3 04/15] ARM: move generic thumb instruction parsing code to new files for use by other feature David Long
2013-11-27  2:53 ` [PATCH v3 05/15] ARM: use a function table for determining instruction interpreter actions David Long
2013-11-27  2:53 ` [PATCH v3 06/15] ARM: Disable jprobes test when built into thumb-mode kernel David Long
2013-11-27 10:16   ` Masami Hiramatsu
2013-11-27  2:53 ` [PATCH v3 07/15] ARM: Remove use of struct kprobe from generic probes code David Long
2013-11-27  2:53 ` [PATCH v3 08/15] ARM: Use new opcode type in ARM kprobes/uprobes code David Long
2013-11-27  2:53 ` [PATCH v3 09/15] ARM: Make the kprobes condition_check symbol names more generic David Long
2013-11-27  2:53 ` [PATCH v3 10/15] ARM: Change more ARM kprobes symbol names to something more David Long
2013-11-27  2:53 ` [PATCH v3 11/15] ARM: Rename the shared kprobes/uprobe return value enum David Long
2013-11-27  2:53 ` [PATCH v3 12/15] ARM: Change the remaining shared kprobes/uprobes symbols to something generic David Long
2013-11-27  2:53 ` [PATCH v3 13/15] ARM: Add an emulate flag to the kprobes/uprobes instruction decode functions David Long
2013-11-27  2:53 ` [PATCH v3 14/15] ARM: add uprobes support David Long
2013-12-04 17:23   ` Taras Kondratiuk
2013-11-27  2:53 ` [PATCH v3 15/15] ARM: Remove uprobes dependency on kprobes David Long
2013-12-04 17:51 ` [PATCH v3 00/15] uprobes: Add uprobes support for ARM Taras Kondratiuk
2013-12-05 19:48   ` David Long
2013-12-05 20:17   ` David Long [this message]
2013-12-20 16:10     ` Jon Medhurst (Tixy)

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