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From: Hajime Tazaki <tazaki@sfc.wide.ad.jp>
To: richard@nod.at
Cc: linux-arch@vger.kernel.org, arnd@arndb.de, corbet@lwn.net,
	cl@linux.com, penberg@kernel.org, rientjes@google.com,
	iamjoonsoo.kim@lge.com, akpm@linux-foundation.org,
	linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org,
	netdev@vger.kernel.org, linux-mm@kvack.org, jdike@addtoit.com,
	rusty@rustcorp.com.au, mathieu.lacage@gmail.com
Subject: Re: [RFC PATCH 00/11] an introduction of library operating system for Linux (LibOS)
Date: Mon, 30 Mar 2015 00:06:10 +0900	[thread overview]
Message-ID: <m2sicnalnh.wl@sfc.wide.ad.jp> (raw)
In-Reply-To: <55152137.20405@nod.at>


Hi Richard,

At Fri, 27 Mar 2015 10:21:59 +0100,
Richard Weinberger wrote:

> Just an idea popping out of my head...
> 
> What about putting libos into tools/testing/ and make it much more generic and framework alike.

it's trivial though, libos is not only for the testing (i.e., NUSE).
# of course tools/libos or something can be the place.

> With more generic I mean that libos could be a stubbing framework for the kernel.
> i.e. you specify the subsystem you want to test/stub and the framework helps you doing so.
> A lot of the stubs you're placing in arch/lib could be auto-generated as the
> vast majority of all kernel methods you stub are no-ops which call only lib_assert(false).

the issue here is the decision between 'no-ops' and
'assert(false)' depends on the context. an auto-generated
mechanism needs some hand-written parameters I think.

one more concern on the out-of-arch-tree design is that how
to handle our asm-generic-based header files
(arch/lib/include/asm). we have been heavily used
'generic-y' in the Kbuild file to reuse header files.

OTOH, I agree with you on the point of auto-generated glues
(stubs), or trying to avoid glues (reuse the originals as
much as possible) as Antti mentioned. that will definitely
be reduce the amount of maintenance effort.


-- Hajime

  parent reply	other threads:[~2015-03-29 15:06 UTC|newest]

Thread overview: 117+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-03-24 13:10 [RFC PATCH 00/11] an introduction of library operating system for Linux (LibOS) Hajime Tazaki
2015-03-24 13:10 ` [RFC PATCH 01/11] sysctl: make some functions unstatic to access by arch/lib Hajime Tazaki
2015-03-24 16:13   ` Joe Perches
2015-03-25 15:31     ` Hajime Tazaki
2015-03-24 13:10 ` [RFC PATCH 02/11] slab: add private memory allocator header for arch/lib Hajime Tazaki
2015-03-24 13:10 ` [RFC PATCH 03/11] lib: public headers and API implementations for userspace programs Hajime Tazaki
2015-03-24 13:10 ` [RFC PATCH 04/11] lib: memory management (kernel glue code) Hajime Tazaki
2015-03-24 13:10 ` [RFC PATCH 05/11] lib: time handling " Hajime Tazaki
2015-03-24 13:10 ` [RFC PATCH 06/11] lib: context and scheduling " Hajime Tazaki
2015-03-24 13:10 ` [RFC PATCH 07/11] lib: sysctl " Hajime Tazaki
2015-03-24 13:10 ` [RFC PATCH 08/11] lib: other kernel glue layer code Hajime Tazaki
2015-03-29 18:17   ` Richard Weinberger
2015-03-31  7:36     ` Hajime Tazaki
2015-04-03  1:24       ` Hajime Tazaki
2015-03-24 13:10 ` [RFC PATCH 09/11] lib: asm-generic files Hajime Tazaki
2015-03-24 13:10 ` [RFC PATCH 10/11] lib: libos build scripts and documentation Hajime Tazaki
2015-03-24 13:10 ` [RFC PATCH 11/11] lib: tools used for test scripts Hajime Tazaki
2015-03-24 13:21 ` [RFC PATCH 00/11] an introduction of library operating system for Linux (LibOS) Richard Weinberger
2015-03-24 14:25   ` Hajime Tazaki
2015-03-24 14:32     ` Richard Weinberger
2015-03-24 15:24       ` Hajime Tazaki
2015-03-24 15:27         ` Richard Weinberger
2015-03-25 14:48           ` Hajime Tazaki
2015-03-25 22:50             ` Richard Weinberger
2015-03-26 16:24               ` Hajime Tazaki
2015-03-26 18:55                 ` Richard Weinberger
2015-03-27  3:31                   ` Rusty Russell
2015-03-27  3:49                     ` Geert Uytterhoeven
2015-03-27  5:52                       ` Richard Weinberger
2015-03-27  6:05                     ` Hajime Tazaki
2015-03-27  6:34                   ` Hajime Tazaki
2015-03-27  9:21                     ` Richard Weinberger
2015-03-27 15:17                       ` Antti Kantee
2015-03-28 21:17                         ` Richard Weinberger
2015-03-29 15:36                           ` Hajime Tazaki
2015-03-29 16:47                             ` Richard Weinberger
2015-03-29 16:59                           ` Antti Kantee
2015-03-29 18:05                             ` Richard Weinberger
2015-03-29 15:06                       ` Hajime Tazaki [this message]
2015-03-30  6:41                         ` Richard Weinberger
2015-03-31  7:47                           ` Hajime Tazaki
2015-04-09  8:36                             ` Richard Weinberger
2015-04-14  3:20                               ` Hajime Tazaki
2015-04-01  1:29                         ` Rusty Russell
2015-04-03  1:43                           ` Hajime Tazaki
2015-04-07  1:25                             ` Rusty Russell
2015-04-17  9:36 ` [RFC PATCH v2 " Hajime Tazaki
2015-04-17  9:36   ` [RFC PATCH v2 01/11] sysctl: make some functions unstatic to access by arch/lib Hajime Tazaki
2015-04-17  9:36   ` [RFC PATCH v2 02/11] slab: add private memory allocator header for arch/lib Hajime Tazaki
2015-04-17 12:17     ` Christoph Lameter
2015-04-17 12:44       ` Richard Weinberger
2015-04-17 15:02         ` Hajime Tazaki
2015-04-17 15:08           ` Richard Weinberger
2015-04-17 15:27             ` Hajime Tazaki
2015-04-17 22:26             ` Christoph Lameter
2015-04-17  9:36   ` [RFC PATCH v2 03/11] lib: public headers and API implementations for userspace programs Hajime Tazaki
2015-04-17  9:36   ` [RFC PATCH v2 04/11] lib: memory management (kernel glue code) Hajime Tazaki
2015-04-17  9:36   ` [RFC PATCH v2 05/11] lib: time handling " Hajime Tazaki
2015-04-17  9:36   ` [RFC PATCH v2 06/11] lib: context and scheduling " Hajime Tazaki
2015-04-17  9:36   ` [RFC PATCH v2 07/11] lib: sysctl " Hajime Tazaki
2015-04-17  9:36   ` [RFC PATCH v2 08/11] lib: other kernel glue layer code Hajime Tazaki
2015-04-17  9:36   ` [RFC PATCH v2 09/11] lib: asm-generic files Hajime Tazaki
2015-04-17  9:36   ` [RFC PATCH v2 10/11] lib: libos build scripts and documentation Hajime Tazaki
2015-04-17  9:36   ` [RFC PATCH v2 11/11] lib: tools used for test scripts Hajime Tazaki
2015-04-19 13:28   ` [RFC PATCH v3 00/10] an introduction of library operating system for Linux (LibOS) Hajime Tazaki
2015-04-19 13:28     ` [RFC PATCH v3 01/10] sysctl: make some functions unstatic to access by arch/lib Hajime Tazaki
2015-04-19 13:28     ` [RFC PATCH v3 02/10] slab: add SLIB (Library memory allocator) for arch/lib Hajime Tazaki
2015-04-19 13:28     ` [RFC PATCH v3 03/10] lib: public headers and API implementations for userspace programs Hajime Tazaki
2015-04-19 13:28     ` [RFC PATCH v3 04/10] lib: time handling (kernel glue code) Hajime Tazaki
2015-04-19 13:28     ` [RFC PATCH v3 05/10] lib: context and scheduling functions (kernel glue code) for libos Hajime Tazaki
2015-04-19 13:28     ` [RFC PATCH v3 06/10] lib: sysctl handling (kernel glue code) Hajime Tazaki
2015-04-19 13:28     ` [RFC PATCH v3 07/10] lib: other kernel glue layer code Hajime Tazaki
2015-04-19 13:28     ` [RFC PATCH v3 08/10] lib: auxially files for auto-generated asm-generic files of libos Hajime Tazaki
2015-04-19 13:28     ` [RFC PATCH v3 09/10] lib: libos build scripts and documentation Hajime Tazaki
2015-04-20 20:43       ` Paul Bolle
2015-04-22  5:33         ` Hajime Tazaki
2015-04-19 13:28     ` [RFC PATCH v3 10/10] lib: tools used for test scripts Hajime Tazaki
2015-04-24  7:40     ` [RFC PATCH v3 00/10] an introduction of library operating system for Linux (LibOS) Richard Weinberger
2015-04-24  8:22       ` Hajime Tazaki
2015-04-24  8:59         ` Richard Weinberger
2015-04-24  9:50           ` Hajime Tazaki
2015-04-27  3:00     ` [PATCH v4 00/10] an introduction of Linux library operating system (LibOS) Hajime Tazaki
2015-04-27  3:00       ` [PATCH v4 01/10] sysctl: make some functions unstatic to access by arch/lib Hajime Tazaki
2015-04-27  3:00       ` [PATCH v4 02/10] slab: add SLIB (Library memory allocator) for arch/lib Hajime Tazaki
2015-04-27  3:00       ` [PATCH v4 03/10] lib: public headers and API implementations for userspace programs Hajime Tazaki
2015-04-27  3:00       ` [PATCH v4 04/10] lib: time handling (kernel glue code) Hajime Tazaki
2015-04-27  3:00       ` [PATCH v4 05/10] lib: context and scheduling functions (kernel glue code) for libos Hajime Tazaki
2015-04-27  3:00       ` [PATCH v4 06/10] lib: sysctl handling (kernel glue code) Hajime Tazaki
2015-04-27  3:00       ` [PATCH v4 07/10] lib: other kernel glue layer code Hajime Tazaki
2015-04-27  3:00       ` [PATCH v4 08/10] lib: auxially files for auto-generated asm-generic files of libos Hajime Tazaki
2015-04-27  3:00       ` [PATCH v4 09/10] lib: libos build scripts and documentation Hajime Tazaki
2015-04-27  3:00       ` [PATCH v4 10/10] lib: tools used for test scripts Hajime Tazaki
2015-04-27  7:29       ` [PATCH v4 00/10] an introduction of Linux library operating system (LibOS) Richard Weinberger
2015-04-27  7:39         ` Richard Weinberger
2015-04-29 23:16           ` Hajime Tazaki
2015-05-13  5:28       ` [PATCH v5 " Hajime Tazaki
2015-05-13  5:28         ` [PATCH v5 01/10] sysctl: make some functions unstatic to access by arch/lib Hajime Tazaki
2015-05-13  5:28         ` [PATCH v5 02/10] slab: add SLIB (Library memory allocator) for arch/lib Hajime Tazaki
2015-05-13  5:28         ` [PATCH v5 03/10] lib: public headers and API implementations for userspace programs Hajime Tazaki
2015-05-13  5:28         ` [PATCH v5 04/10] lib: time handling (kernel glue code) Hajime Tazaki
2015-05-13  5:28         ` [PATCH v5 05/10] lib: context and scheduling functions (kernel glue code) for libos Hajime Tazaki
2015-05-13  5:28         ` [PATCH v5 06/10] lib: sysctl handling (kernel glue code) Hajime Tazaki
2015-05-13  5:28         ` [PATCH v5 07/10] lib: other kernel glue layer code Hajime Tazaki
2015-05-13  5:28         ` [PATCH v5 08/10] lib: auxiliary files for auto-generated asm-generic files of libos Hajime Tazaki
2015-05-13  5:28         ` [PATCH v5 09/10] lib: libos build scripts and documentation Hajime Tazaki
2015-05-13  5:28         ` [PATCH v5 10/10] lib: tools used for test scripts Hajime Tazaki
2015-09-03 14:16         ` [PATCH v6 00/10] an introduction of Linux library operating system (LibOS) Hajime Tazaki
2015-09-03 14:16           ` [PATCH v6 01/10] sysctl: make some functions unstatic to access by arch/lib Hajime Tazaki
2015-09-03 14:16           ` [PATCH v6 02/10] slab: add SLIB (Library memory allocator) for arch/lib Hajime Tazaki
2015-09-03 14:16           ` [PATCH v6 03/10] lib: public headers and API implementations for userspace programs Hajime Tazaki
2015-09-03 14:16           ` [PATCH v6 04/10] lib: time handling (kernel glue code) Hajime Tazaki
2015-09-03 14:16           ` [PATCH v6 05/10] lib: context and scheduling functions (kernel glue code) for libos Hajime Tazaki
2015-09-03 14:16           ` [PATCH v6 06/10] lib: sysctl handling (kernel glue code) Hajime Tazaki
2015-09-03 14:16           ` [PATCH v6 07/10] lib: other kernel glue layer code Hajime Tazaki
2015-09-03 14:16           ` [PATCH v6 08/10] lib: auxiliary files for auto-generated asm-generic files of libos Hajime Tazaki
2015-09-03 14:16           ` [PATCH v6 09/10] lib: libos build scripts and documentation Hajime Tazaki
2015-09-03 14:16           ` [PATCH v6 10/10] lib: tools used for test scripts Hajime Tazaki

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