2008-01-16 02:53:55

by Mathieu Desnoyers

[permalink] [raw]
Subject: [PATCH for -mm] Fix ARM to play nicely with generic Instrumentation menu

The conflicting commit for
move-kconfiginstrumentation-to-arch-kconfig-and-init-kconfig.patch
is the ARM fix from Linus :

commit 38ad9aebe70dc72df08851bbd1620d89329129ba

He just seemed to agree that my approach (just putting the missing ARM
config options in arch/arm/Kconfig) works too. The main advantage it has
is that it is smaller, does not need a cleanup in the future and does
not break the following patches unnecessarily.

It's just been discussed here

http://lkml.org/lkml/2008/1/15/267

However, Linus might prefer to stay with his own patch and I would
totally understand it that late in the release cycle. Therefore I submit
this for the next release cycle.

This patch cleans up the fix from Linus so it does not conflict with the
following patches in -mm.

It applies on top of the current 2.6.24-rc7-git8 + possibly some more
git commits (at commit 0938e7586440ac97cedc0f5528a8684ebfa4ce43).

After applying this patch,
move-kconfiginstrumentation-to-arch-kconfig-and-init-kconfig.patch
applies nicely in the -mm tree without any modification.

Signed-off-by: Mathieu Desnoyers <[email protected]>
CC: Linus Torvalds <[email protected]>
CC: [email protected]
CC: [email protected]
CC: [email protected]
CC: [email protected]
CC: Adrian Bunk <[email protected]>
CC: Randy Dunlap <[email protected]>
CC: [email protected]
CC: [email protected]
CC: [email protected]
---
arch/arm/Kconfig | 2 -
arch/arm/Kconfig.instrumentation | 52 ---------------------------------------
2 files changed, 1 insertion(+), 53 deletions(-)

Index: linux-2.6-lttng/arch/arm/Kconfig
===================================================================
--- linux-2.6-lttng.orig/arch/arm/Kconfig 2008-01-15 21:37:06.000000000 -0500
+++ linux-2.6-lttng/arch/arm/Kconfig 2008-01-15 21:45:23.000000000 -0500
@@ -130,6 +130,23 @@ config FIQ
config ARCH_MTD_XIP
bool

+if OPROFILE
+
+config OPROFILE_ARMV6
+ def_bool y
+ depends on CPU_V6 && !SMP
+ select OPROFILE_ARM11_CORE
+
+config OPROFILE_MPCORE
+ def_bool y
+ depends on CPU_V6 && SMP
+ select OPROFILE_ARM11_CORE
+
+config OPROFILE_ARM11_CORE
+ bool
+
+endif
+
config VECTORS_BASE
hex
default 0xffff0000 if MMU || CPU_HIGH_VECTOR
@@ -1076,7 +1093,7 @@ endmenu

source "fs/Kconfig"

-source "arch/arm/Kconfig.instrumentation"
+source "kernel/Kconfig.instrumentation"

source "arch/arm/Kconfig.debug"

Index: linux-2.6-lttng/arch/arm/Kconfig.instrumentation
===================================================================
--- linux-2.6-lttng.orig/arch/arm/Kconfig.instrumentation 2008-01-15 21:37:06.000000000 -0500
+++ /dev/null 1970-01-01 00:00:00.000000000 +0000
@@ -1,52 +0,0 @@
-menuconfig INSTRUMENTATION
- bool "Instrumentation Support"
- default y
- ---help---
- Say Y here to get to see options related to performance measurement,
- system-wide debugging, and testing. This option alone does not add any
- kernel code.
-
- If you say N, all options in this submenu will be skipped and
- disabled. If you're trying to debug the kernel itself, go see the
- Kernel Hacking menu.
-
-if INSTRUMENTATION
-
-config PROFILING
- bool "Profiling support (EXPERIMENTAL)"
- help
- Say Y here to enable the extended profiling support mechanisms used
- by profilers such as OProfile.
-
-config OPROFILE
- tristate "OProfile system profiling (EXPERIMENTAL)"
- depends on PROFILING && !UML
- help
- OProfile is a profiling system capable of profiling the
- whole system, include the kernel, kernel modules, libraries,
- and applications.
-
- If unsure, say N.
-
-config OPROFILE_ARMV6
- bool
- depends on OPROFILE && CPU_V6 && !SMP
- default y
- select OPROFILE_ARM11_CORE
-
-config OPROFILE_MPCORE
- bool
- depends on OPROFILE && CPU_V6 && SMP
- default y
- select OPROFILE_ARM11_CORE
-
-config OPROFILE_ARM11_CORE
- bool
-
-config MARKERS
- bool "Activate markers"
- help
- Place an empty function call at each marker site. Can be
- dynamically changed for a probe function.
-
-endif # INSTRUMENTATION

--
Mathieu Desnoyers
Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal
OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F BA06 3F25 A8FE 3BAE 9A68


2008-01-16 08:53:00

by Russell King

[permalink] [raw]
Subject: Re: [PATCH for -mm] Fix ARM to play nicely with generic Instrumentation menu

On Tue, Jan 15, 2008 at 09:53:41PM -0500, Mathieu Desnoyers wrote:
> This patch cleans up the fix from Linus so it does not conflict with the
> following patches in -mm.

What following patches?

--
Russell King
Linux kernel 2.6 ARM Linux - http://www.arm.linux.org.uk/
maintainer of:

2008-01-16 14:35:11

by Mathieu Desnoyers

[permalink] [raw]
Subject: Re: [PATCH for -mm] Fix ARM to play nicely with generic Instrumentation menu

* Russell King ([email protected]) wrote:
> On Tue, Jan 15, 2008 at 09:53:41PM -0500, Mathieu Desnoyers wrote:
> > This patch cleans up the fix from Linus so it does not conflict with the
> > following patches in -mm.
>
> What following patches?
>

Instrumentation menu removal, which was in -mm until yesterday.

http://lkml.org/lkml/2007/12/8/81

I did this patch following a discussion with Linus about a month ago
where I was proposing the creation of the instrumentation/ directory in
the kernel sources to follow the menus/tree directories logic found in
the rest of the kernel.

http://lkml.org/lkml/2007/10/30/318

Mathieu

--
Mathieu Desnoyers
Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal
OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F BA06 3F25 A8FE 3BAE 9A68