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authorDave Hansen <dave@linux.vnet.ibm.com>2013-07-01 13:04:42 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2013-07-04 11:25:39 -0700
commitd1a1dc0be866219f7a613c6368c6a036b8eefe03 (patch)
tree3e82bc03670f24e26cb340278e6bc2abd8f7f54b /arch/x86
parent8bb495e3f02401ee6f76d1b1d77f3ac9f079e376 (diff)
consolidate per-arch stack overflow debugging options
Original posting: http://lkml.kernel.org/r/20121214184202.F54094D9@kernel.stglabs.ibm.com Several architectures have similar stack debugging config options. They all pretty much do the same thing, some with slightly differing help text. This patch changes the architectures to instead enable a Kconfig boolean, and then use that boolean in the generic Kconfig.debug to present the actual menu option. This removes a bunch of duplication and adds consistency across arches. Signed-off-by: Dave Hansen <dave@linux.vnet.ibm.com> Reviewed-by: H. Peter Anvin <hpa@zytor.com> Reviewed-by: James Hogan <james.hogan@imgtec.com> Acked-by: Chris Metcalf <cmetcalf@tilera.com> [for tile] Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/x86')
-rw-r--r--arch/x86/Kconfig1
-rw-r--r--arch/x86/Kconfig.debug10
2 files changed, 1 insertions, 10 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index fe120da2562..22f30337a18 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -121,6 +121,7 @@ config X86
select OLD_SIGACTION if X86_32
select COMPAT_OLD_SIGACTION if IA32_EMULATION
select RTC_LIB
+ select HAVE_DEBUG_STACKOVERFLOW
config INSTRUCTION_DECODER
def_bool y
diff --git a/arch/x86/Kconfig.debug b/arch/x86/Kconfig.debug
index c198b7e13e7..c1665a8989d 100644
--- a/arch/x86/Kconfig.debug
+++ b/arch/x86/Kconfig.debug
@@ -59,16 +59,6 @@ config EARLY_PRINTK_DBGP
with klogd/syslogd or the X server. You should normally N here,
unless you want to debug such a crash. You need usb debug device.
-config DEBUG_STACKOVERFLOW
- bool "Check for stack overflows"
- depends on DEBUG_KERNEL
- ---help---
- Say Y here if you want to check the overflows of kernel, IRQ
- and exception stacks. This option will cause messages of the
- stacks in detail when free stack space drops below a certain
- limit.
- If in doubt, say "N".
-
config X86_PTDUMP
bool "Export kernel pagetable layout to userspace via debugfs"
depends on DEBUG_KERNEL