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lib: consolidate DEBUG_STACK_USAGE option

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Most arches define CONFIG_DEBUG_STACK_USAGE exactly the same way.  Move it
to lib/Kconfig.debug so each arch doesn't have to define it.  This
obviously makes the option generic, but that's fine because the config is
already used in generic code.

It's not obvious to me that sysrq-P actually does anything caution by
keeping the most inclusive wording.

Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Cc: Chris Metcalf <cmetcalf@tilera.com>
Acked-by: David S. Miller <davem@davemloft.net>
Acked-by: Richard Weinberger <richard@nod.at>
Acked-by: Mike Frysinger <vapier@gentoo.org>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Hirokazu Takata <takata@linux-m32r.org>
Acked-by: Ralf Baechle <ralf@linux-mips.org>
Cc: Paul Mackerras <paulus@samba.org>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Chen Liqin <liqin.chen@sunplusct.com>
Cc: Lennox Wu <lennox.wu@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Stephen Boyd 2011-05-24 17:13:36 -07:00 committed by Linus Torvalds
parent c84598bbfa
commit 5ca43f6c3b
13 changed files with 9 additions and 105 deletions
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7
arch/arm/Kconfig.debug
View File

@ -63,13 +63,6 @@ config DEBUG_USER
8 - SIGSEGV faults
16 - SIGBUS faults
config DEBUG_STACK_USAGE
bool "Enable stack utilization instrumentation"
depends on DEBUG_KERNEL
help
Enables the display of the minimum amount of free stack which each
task has ever had available in the sysrq-T output.
# These options are only for real kernel hackers who want to get their hands dirty.
config DEBUG_LL
bool "Kernel low-level debugging functions"

9
arch/blackfin/Kconfig.debug
View File

@ -9,15 +9,6 @@ config DEBUG_STACKOVERFLOW
This option will cause messages to be printed if free stack space
drops below a certain limit.
config DEBUG_STACK_USAGE
bool "Enable stack utilization instrumentation"
depends on DEBUG_KERNEL
help
Enables the display of the minimum amount of free stack which each
task has ever had available in the sysrq-T output.
This option will slow down process creation somewhat.
config DEBUG_VERBOSE
bool "Verbose fault messages"
default y

9
arch/m32r/Kconfig.debug
View File

@ -9,15 +9,6 @@ config DEBUG_STACKOVERFLOW
This option will cause messages to be printed if free stack space
drops below a certain limit.
config DEBUG_STACK_USAGE
bool "Stack utilization instrumentation"
depends on DEBUG_KERNEL
help
Enables the display of the minimum amount of free stack which each
task has ever had available in the sysrq-T and sysrq-P debug output.
This option will slow down process creation somewhat.
config DEBUG_PAGEALLOC
bool "Debug page memory allocations"
depends on DEBUG_KERNEL && BROKEN

9
arch/mips/Kconfig.debug
View File

@ -76,15 +76,6 @@ config DEBUG_STACKOVERFLOW
provides another way to check stack overflow happened on kernel mode
stack usually caused by nested interruption.
config DEBUG_STACK_USAGE
bool "Enable stack utilization instrumentation"
depends on DEBUG_KERNEL
help
Enables the display of the minimum amount of free stack which each
task has ever had available in the sysrq-T and sysrq-P debug output.
This option will slow down process creation somewhat.
config SMTC_IDLE_HOOK_DEBUG
bool "Enable additional debug checks before going into CPU idle loop"
depends on DEBUG_KERNEL && MIPS_MT_SMTC

9
arch/powerpc/Kconfig.debug
View File

@ -35,15 +35,6 @@ config DEBUG_STACKOVERFLOW
This option will cause messages to be printed if free stack space
drops below a certain limit.
config DEBUG_STACK_USAGE
bool "Stack utilization instrumentation"
depends on DEBUG_KERNEL
help
Enables the display of the minimum amount of free stack which each
task has ever had available in the sysrq-T and sysrq-P debug output.
This option will slow down process creation somewhat.
config HCALL_STATS
bool "Hypervisor call instrumentation"
depends on PPC_PSERIES && DEBUG_FS && TRACEPOINTS

9
arch/score/Kconfig.debug
View File

@ -16,15 +16,6 @@ config CMDLINE
other cases you can specify kernel args so that you don't have
to set them up in board prom initialization routines.
config DEBUG_STACK_USAGE
bool "Enable stack utilization instrumentation"
depends on DEBUG_KERNEL
help
Enables the display of the minimum amount of free stack which each
task has ever had available in the sysrq-T and sysrq-P debug output.
This option will slow down process creation somewhat.
config RUNTIME_DEBUG
bool "Enable run-time debugging"
depends on DEBUG_KERNEL

9
arch/sh/Kconfig.debug
View File

@ -28,15 +28,6 @@ config STACK_DEBUG
every function call and will therefore incur a major
performance hit. Most users should say N.
config DEBUG_STACK_USAGE
bool "Stack utilization instrumentation"
depends on DEBUG_KERNEL
help
Enables the display of the minimum amount of free stack which each
task has ever had available in the sysrq-T and sysrq-P debug output.
This option will slow down process creation somewhat.
config 4KSTACKS
bool "Use 4Kb for kernel stacks instead of 8Kb"
depends on DEBUG_KERNEL && (MMU || BROKEN) && !PAGE_SIZE_64KB

9
arch/sparc/Kconfig.debug
View File

@ -6,15 +6,6 @@ config TRACE_IRQFLAGS_SUPPORT
source "lib/Kconfig.debug"
config DEBUG_STACK_USAGE
bool "Enable stack utilization instrumentation"
depends on DEBUG_KERNEL
help
Enables the display of the minimum amount of free stack which each
task has ever had available in the sysrq-T and sysrq-P debug output.
This option will slow down process creation somewhat.
config DEBUG_DCFLUSH
bool "D-cache flush debugging"
depends on SPARC64 && DEBUG_KERNEL

9
arch/tile/Kconfig.debug
View File

@ -21,15 +21,6 @@ config DEBUG_STACKOVERFLOW
This option will cause messages to be printed if free stack space
drops below a certain limit.
config DEBUG_STACK_USAGE
bool "Stack utilization instrumentation"
depends on DEBUG_KERNEL
help
Enables the display of the minimum amount of free stack which each
task has ever had available in the sysrq-T and sysrq-P debug output.
This option will slow down process creation somewhat.
config DEBUG_EXTRA_FLAGS
string "Additional compiler arguments when building with '-g'"
depends on DEBUG_INFO

10
arch/um/Kconfig.debug
View File

@ -28,16 +28,6 @@ config GCOV
If you're involved in UML kernel development and want to use gcov,
say Y. If you're unsure, say N.
config DEBUG_STACK_USAGE
bool "Stack utilization instrumentation"
default N
help
Track the maximum kernel stack usage - this will look at each
kernel stack at process exit and log it if it's the deepest
stack seen so far.
This option will slow down process creation and destruction somewhat.
config EARLY_PRINTK
bool "Early printk"
default y

7
arch/unicore32/Kconfig.debug
View File

@ -27,13 +27,6 @@ config EARLY_PRINTK
with klogd/syslogd or the X server. You should normally N here,
unless you want to debug such a crash.
config DEBUG_STACK_USAGE
bool "Enable stack utilization instrumentation"
depends on DEBUG_KERNEL
help
Enables the display of the minimum amount of free stack which each
task has ever had available in the sysrq-T output.
# These options are only for real kernel hackers who want to get their hands dirty.
config DEBUG_LL
bool "Kernel low-level debugging functions"

9
arch/x86/Kconfig.debug
View File

@ -66,15 +66,6 @@ config DEBUG_STACKOVERFLOW
This option will cause messages to be printed if free stack space
drops below a certain limit.
config DEBUG_STACK_USAGE
bool "Stack utilization instrumentation"
depends on DEBUG_KERNEL
---help---
Enables the display of the minimum amount of free stack which each
task has ever had available in the sysrq-T and sysrq-P debug output.
This option will slow down process creation somewhat.
config X86_PTDUMP
bool "Export kernel pagetable layout to userspace via debugfs"
depends on DEBUG_KERNEL

9
lib/Kconfig.debug
View File

@ -670,6 +670,15 @@ config STACKTRACE
bool
depends on STACKTRACE_SUPPORT
config DEBUG_STACK_USAGE
bool "Stack utilization instrumentation"
depends on DEBUG_KERNEL
help
Enables the display of the minimum amount of free stack which each
task has ever had available in the sysrq-T and sysrq-P debug output.
This option will slow down process creation somewhat.
config DEBUG_KOBJECT
bool "kobject debugging"
depends on DEBUG_KERNEL