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Kconfig: clean up the "#if defined(arch)" list for exception-trace sysctl entry

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Introduce SYSCTL_EXCEPTION_TRACE config option and selec it in the
architectures requiring support for the "exception-trace" debug_table
entry in kernel/sysctl.c.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Chris Metcalf <cmetcalf@tilera.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
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:
Catalin Marinas 2012-10-08 16:28:16 -07:00 committed by Linus Torvalds
parent 9b2a60c484
commit 7ac57a89de
8 changed files with 12 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
arch/arm64/Kconfig
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@ -28,6 +28,7 @@ config ARM64
select PERF_USE_VMALLOC select PERF_USE_VMALLOC
select RTC_LIB select RTC_LIB
select SPARSE_IRQ select SPARSE_IRQ
select SYSCTL_EXCEPTION_TRACE
help help
ARM 64-bit (AArch64) Linux support. ARM 64-bit (AArch64) Linux support.

1
arch/powerpc/Kconfig
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@ -99,6 +99,7 @@ config PPC
select HAVE_DYNAMIC_FTRACE select HAVE_DYNAMIC_FTRACE
select HAVE_FUNCTION_TRACER select HAVE_FUNCTION_TRACER
select HAVE_FUNCTION_GRAPH_TRACER select HAVE_FUNCTION_GRAPH_TRACER
select SYSCTL_EXCEPTION_TRACE
select ARCH_WANT_OPTIONAL_GPIOLIB select ARCH_WANT_OPTIONAL_GPIOLIB
select HAVE_IDE select HAVE_IDE
select HAVE_IOREMAP_PROT select HAVE_IOREMAP_PROT

1
arch/s390/Kconfig
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@ -68,6 +68,7 @@ config S390
select HAVE_FTRACE_MCOUNT_RECORD select HAVE_FTRACE_MCOUNT_RECORD
select HAVE_C_RECORDMCOUNT select HAVE_C_RECORDMCOUNT
select HAVE_SYSCALL_TRACEPOINTS select HAVE_SYSCALL_TRACEPOINTS
select SYSCTL_EXCEPTION_TRACE
select HAVE_DYNAMIC_FTRACE select HAVE_DYNAMIC_FTRACE
select HAVE_FUNCTION_GRAPH_TRACER select HAVE_FUNCTION_GRAPH_TRACER
select HAVE_REGS_AND_STACK_ACCESS_API select HAVE_REGS_AND_STACK_ACCESS_API

1
arch/sparc/Kconfig
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@ -18,6 +18,7 @@ config SPARC
select HAVE_OPROFILE select HAVE_OPROFILE
select HAVE_ARCH_KGDB if !SMP || SPARC64 select HAVE_ARCH_KGDB if !SMP || SPARC64
select HAVE_ARCH_TRACEHOOK select HAVE_ARCH_TRACEHOOK
select SYSCTL_EXCEPTION_TRACE
select ARCH_WANT_OPTIONAL_GPIOLIB select ARCH_WANT_OPTIONAL_GPIOLIB
select RTC_CLASS select RTC_CLASS
select RTC_DRV_M48T59 select RTC_DRV_M48T59

1
arch/tile/Kconfig
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@ -7,6 +7,7 @@ config TILE
select HAVE_DMA_API_DEBUG select HAVE_DMA_API_DEBUG
select HAVE_KVM if !TILEGX select HAVE_KVM if !TILEGX
select GENERIC_FIND_FIRST_BIT select GENERIC_FIND_FIRST_BIT
select SYSCTL_EXCEPTION_TRACE
select USE_GENERIC_SMP_HELPERS select USE_GENERIC_SMP_HELPERS
select CC_OPTIMIZE_FOR_SIZE select CC_OPTIMIZE_FOR_SIZE
select HAVE_DEBUG_KMEMLEAK select HAVE_DEBUG_KMEMLEAK

1
arch/x86/Kconfig
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@ -47,6 +47,7 @@ config X86
select HAVE_FUNCTION_GRAPH_FP_TEST select HAVE_FUNCTION_GRAPH_FP_TEST
select HAVE_FUNCTION_TRACE_MCOUNT_TEST select HAVE_FUNCTION_TRACE_MCOUNT_TEST
select HAVE_SYSCALL_TRACEPOINTS select HAVE_SYSCALL_TRACEPOINTS
select SYSCTL_EXCEPTION_TRACE
select HAVE_KVM select HAVE_KVM
select HAVE_ARCH_KGDB select HAVE_ARCH_KGDB
select HAVE_ARCH_TRACEHOOK select HAVE_ARCH_TRACEHOOK

5
init/Kconfig
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@ -1152,6 +1152,11 @@ config SYSCTL_SYSCALL
If unsure say N here. If unsure say N here.
config SYSCTL_EXCEPTION_TRACE
bool
help
Enable support for /proc/sys/debug/exception-trace.
config KALLSYMS config KALLSYMS
bool "Load all symbols for debugging/ksymoops" if EXPERT bool "Load all symbols for debugging/ksymoops" if EXPERT
default y default y

3
kernel/sysctl.c
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@ -1549,8 +1549,7 @@ static struct ctl_table fs_table[] = {
}; };
static struct ctl_table debug_table[] = { static struct ctl_table debug_table[] = {
#if defined(CONFIG_X86) || defined(CONFIG_PPC) || defined(CONFIG_SPARC) || \ #ifdef CONFIG_SYSCTL_EXCEPTION_TRACE
defined(CONFIG_S390) || defined(CONFIG_TILE) || defined(CONFIG_ARM64)
{ {
.procname = "exception-trace", .procname = "exception-trace",
.data = &show_unhandled_signals, .data = &show_unhandled_signals,