[patch 2/4] Add ARCH_SUPPORTS_OPROFILE

From: Mathieu Desnoyers
Date: Tue Nov 13 2007 - 09:31:14 EST

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Linus:
On the per-architecture side, I do think it would be better to *not* have
internal architecture knowledge in a generic file, and as such a line like

depends on X86_32 || IA64 || PPC || S390 || SPARC64 || X86_64 || AVR32

really shouldn't exist in a file like kernel/Kconfig.instrumentation.

It would be much better to do

depends on ARCH_SUPPORTS_KPROBES

in that generic file, and then architectures that do support it would just
have a

bool ARCH_SUPPORTS_KPROBES
default y

in *their* architecture files. That would seem to be much more logical,
and is readable both for arch maintainers *and* for people who have no
clue - and don't care - about which architecture is supposed to support
which interface...

Changelog:

Actually, I know I gave this as the magic incantation, but now that I see
it, I realize that I should have told you to just use

config ARCH_SUPPORTS_KPROBES
def_bool y

instead, which is a bit denser.

We seem to use both kinds of syntax for these things, but this is really
what "def_bool" is there for...

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@xxxxxxxxxx>
CC: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
CC: Sam Ravnborg <sam@xxxxxxxxxxxx>
---
arch/alpha/Kconfig | 3 +++
arch/arm/Kconfig | 3 +++
arch/blackfin/Kconfig | 3 +++
arch/ia64/Kconfig | 3 +++
arch/m32r/Kconfig | 3 +++
arch/mips/Kconfig | 3 +++
arch/parisc/Kconfig | 3 +++
arch/powerpc/Kconfig | 3 +++
arch/ppc/Kconfig | 3 +++
arch/s390/Kconfig | 3 +++
arch/sh/Kconfig | 3 +++
arch/sh64/Kconfig | 3 +++
arch/sparc/Kconfig | 3 +++
arch/sparc64/Kconfig | 3 +++
arch/x86/Kconfig.i386 | 3 +++
arch/x86/Kconfig.x86_64 | 3 +++
kernel/Kconfig.instrumentation | 2 +-
17 files changed, 49 insertions(+), 1 deletion(-)

Index: linux-2.6-lttng/arch/alpha/Kconfig
===================================================================
--- linux-2.6-lttng.orig/arch/alpha/Kconfig 2007-11-02 13:20:47.000000000 -0400
+++ linux-2.6-lttng/arch/alpha/Kconfig 2007-11-02 13:20:54.000000000 -0400
@@ -66,6 +66,9 @@ config AUTO_IRQ_AFFINITY
depends on SMP
default y

+config ARCH_SUPPORTS_OPROFILE
+ def_bool y
+
source "init/Kconfig"

Index: linux-2.6-lttng/arch/arm/Kconfig
===================================================================
--- linux-2.6-lttng.orig/arch/arm/Kconfig 2007-11-02 13:20:47.000000000 -0400
+++ linux-2.6-lttng/arch/arm/Kconfig 2007-11-02 13:20:54.000000000 -0400
@@ -114,6 +114,9 @@ config GENERIC_CALIBRATE_DELAY
bool
default y

+config ARCH_SUPPORTS_OPROFILE
+ def_bool y
+
config ARCH_MAY_HAVE_PC_FDC
bool

Index: linux-2.6-lttng/arch/blackfin/Kconfig
===================================================================
--- linux-2.6-lttng.orig/arch/blackfin/Kconfig 2007-11-02 13:20:47.000000000 -0400
+++ linux-2.6-lttng/arch/blackfin/Kconfig 2007-11-02 13:20:54.000000000 -0400
@@ -69,6 +69,9 @@ config GENERIC_CALIBRATE_DELAY
bool
default y

+config ARCH_SUPPORTS_OPROFILE
+ def_bool y
+
config IRQCHIP_DEMUX_GPIO
bool
depends on (BF52x || BF53x || BF561 || BF54x)
Index: linux-2.6-lttng/arch/ia64/Kconfig
===================================================================
--- linux-2.6-lttng.orig/arch/ia64/Kconfig 2007-11-02 13:20:47.000000000 -0400
+++ linux-2.6-lttng/arch/ia64/Kconfig 2007-11-02 13:20:54.000000000 -0400
@@ -99,6 +99,9 @@ config AUDIT_ARCH
bool
default y

+config ARCH_SUPPORTS_OPROFILE
+ def_bool y
+
choice
prompt "System type"
default IA64_GENERIC
Index: linux-2.6-lttng/arch/m32r/Kconfig
===================================================================
--- linux-2.6-lttng.orig/arch/m32r/Kconfig 2007-11-02 13:20:48.000000000 -0400
+++ linux-2.6-lttng/arch/m32r/Kconfig 2007-11-02 13:20:54.000000000 -0400
@@ -34,6 +34,9 @@ config NO_IOPORT
config NO_DMA
def_bool y

+config ARCH_SUPPORTS_OPROFILE
+ def_bool y
+
source "init/Kconfig"

Index: linux-2.6-lttng/arch/mips/Kconfig
===================================================================
--- linux-2.6-lttng.orig/arch/mips/Kconfig 2007-11-02 13:20:48.000000000 -0400
+++ linux-2.6-lttng/arch/mips/Kconfig 2007-11-02 13:20:54.000000000 -0400
@@ -721,6 +721,9 @@ config GENERIC_HARDIRQS_NO__DO_IRQ
bool
default n

+config ARCH_SUPPORTS_OPROFILE
+ def_bool y
+
#
# Select some configuration options automatically based on user selections.
#
Index: linux-2.6-lttng/arch/parisc/Kconfig
===================================================================
--- linux-2.6-lttng.orig/arch/parisc/Kconfig 2007-11-02 13:20:48.000000000 -0400
+++ linux-2.6-lttng/arch/parisc/Kconfig 2007-11-02 13:20:54.000000000 -0400
@@ -69,6 +69,9 @@ config IRQ_PER_CPU
bool
default y

+config ARCH_SUPPORTS_OPROFILE
+ def_bool y
+
# unless you want to implement ACPI on PA-RISC ... ;-)
config PM
bool
Index: linux-2.6-lttng/arch/powerpc/Kconfig
===================================================================
--- linux-2.6-lttng.orig/arch/powerpc/Kconfig 2007-11-02 13:20:48.000000000 -0400
+++ linux-2.6-lttng/arch/powerpc/Kconfig 2007-11-02 13:20:54.000000000 -0400
@@ -163,6 +163,9 @@ config PPC_OF_PLATFORM_PCI
depends on PPC64 # not supported on 32 bits yet
default n

+config ARCH_SUPPORTS_OPROFILE
+ def_bool y
+
source "init/Kconfig"

source "arch/powerpc/platforms/Kconfig"
Index: linux-2.6-lttng/arch/ppc/Kconfig
===================================================================
--- linux-2.6-lttng.orig/arch/ppc/Kconfig 2007-11-02 13:20:48.000000000 -0400
+++ linux-2.6-lttng/arch/ppc/Kconfig 2007-11-02 13:20:54.000000000 -0400
@@ -69,6 +69,9 @@ config GENERIC_BUG
default y
depends on BUG

+config ARCH_SUPPORTS_OPROFILE
+ def_bool y
+
source "init/Kconfig"

menu "Processor"
Index: linux-2.6-lttng/arch/s390/Kconfig
===================================================================
--- linux-2.6-lttng.orig/arch/s390/Kconfig 2007-11-02 13:20:48.000000000 -0400
+++ linux-2.6-lttng/arch/s390/Kconfig 2007-11-02 13:20:54.000000000 -0400
@@ -52,6 +52,9 @@ mainmenu "Linux Kernel Configuration"
config S390
def_bool y

+config ARCH_SUPPORTS_OPROFILE
+ def_bool y
+
source "init/Kconfig"

menu "Base setup"
Index: linux-2.6-lttng/arch/sh/Kconfig
===================================================================
--- linux-2.6-lttng.orig/arch/sh/Kconfig 2007-11-02 13:20:48.000000000 -0400
+++ linux-2.6-lttng/arch/sh/Kconfig 2007-11-02 13:20:54.000000000 -0400
@@ -93,6 +93,9 @@ config ARCH_HAS_ILOG2_U64
config ARCH_NO_VIRT_TO_BUS
def_bool y

+config ARCH_SUPPORTS_OPROFILE
+ def_bool y
+
source "init/Kconfig"

menu "System type"
Index: linux-2.6-lttng/arch/sh64/Kconfig
===================================================================
--- linux-2.6-lttng.orig/arch/sh64/Kconfig 2007-11-02 13:20:48.000000000 -0400
+++ linux-2.6-lttng/arch/sh64/Kconfig 2007-11-02 13:20:54.000000000 -0400
@@ -58,6 +58,9 @@ config ARCH_HAS_ILOG2_U64
config ARCH_NO_VIRT_TO_BUS
def_bool y

+config ARCH_SUPPORTS_OPROFILE
+ def_bool y
+
source init/Kconfig

menu "System type"
Index: linux-2.6-lttng/arch/sparc/Kconfig
===================================================================
--- linux-2.6-lttng.orig/arch/sparc/Kconfig 2007-11-02 13:20:48.000000000 -0400
+++ linux-2.6-lttng/arch/sparc/Kconfig 2007-11-02 13:20:54.000000000 -0400
@@ -27,6 +27,9 @@ config ARCH_NO_VIRT_TO_BUS
config OF
def_bool y

+config ARCH_SUPPORTS_OPROFILE
+ def_bool y
+
source "init/Kconfig"

menu "General machine setup"
Index: linux-2.6-lttng/arch/sparc64/Kconfig
===================================================================
--- linux-2.6-lttng.orig/arch/sparc64/Kconfig 2007-11-02 13:20:48.000000000 -0400
+++ linux-2.6-lttng/arch/sparc64/Kconfig 2007-11-02 13:20:54.000000000 -0400
@@ -76,6 +76,9 @@ config GENERIC_HARDIRQS_NO__DO_IRQ
bool
def_bool y

+config ARCH_SUPPORTS_OPROFILE
+ def_bool y
+
choice
prompt "Kernel page size"
default SPARC64_PAGE_SIZE_8KB
Index: linux-2.6-lttng/arch/x86/Kconfig.i386
===================================================================
--- linux-2.6-lttng.orig/arch/x86/Kconfig.i386 2007-11-02 13:20:48.000000000 -0400
+++ linux-2.6-lttng/arch/x86/Kconfig.i386 2007-11-02 13:20:54.000000000 -0400
@@ -91,6 +91,9 @@ config DMI
bool
default y

+config ARCH_SUPPORTS_OPROFILE
+ def_bool y
+
source "init/Kconfig"

menu "Processor type and features"
Index: linux-2.6-lttng/arch/x86/Kconfig.x86_64
===================================================================
--- linux-2.6-lttng.orig/arch/x86/Kconfig.x86_64 2007-11-02 13:20:48.000000000 -0400
+++ linux-2.6-lttng/arch/x86/Kconfig.x86_64 2007-11-02 13:20:54.000000000 -0400
@@ -133,6 +133,9 @@ config ARCH_HAS_ILOG2_U64
bool
default n

+config ARCH_SUPPORTS_OPROFILE
+ def_bool y
+
source "init/Kconfig"

Index: linux-2.6-lttng/kernel/Kconfig.instrumentation
===================================================================
--- linux-2.6-lttng.orig/kernel/Kconfig.instrumentation 2007-11-02 13:20:48.000000000 -0400
+++ linux-2.6-lttng/kernel/Kconfig.instrumentation 2007-11-02 13:20:54.000000000 -0400
@@ -21,7 +21,7 @@ config PROFILING
config OPROFILE
tristate "OProfile system profiling (EXPERIMENTAL)"
depends on PROFILING
- depends on ALPHA || ARM || BLACKFIN || X86_32 || IA64 || M32R || MIPS || PARISC || PPC || S390 || SUPERH || SPARC || X86_64
+ depends on ARCH_SUPPORTS_OPROFILE
help
OProfile is a profiling system capable of profiling the
whole system, include the kernel, kernel modules, libraries,

--
Mathieu Desnoyers
Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal
OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F BA06 3F25 A8FE 3BAE 9A68
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Next message: Florian Boelstler: "Strange delays / what usually happens every 10 min?"
Previous message: Mathieu Desnoyers: "[patch 4/4] Move Kconfig.instrumentation to arch/Kconfig and init/Kconfig"
In reply to: Mathieu Desnoyers: "[patch 4/4] Move Kconfig.instrumentation to arch/Kconfig and init/Kconfig"
Next in thread: Sam Ravnborg: "Re: [patch 2/4] Add ARCH_SUPPORTS_OPROFILE"
Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]