X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=arch%2FKconfig;h=e5eb1337a5377f5b131b2ba70efd8263b8057404;hb=9538ca636f2fa28ae1514327328e2869f0215981;hp=550dab22daa14b492d88258c9eb8ae7498d76ec1;hpb=1a94bc34768e463a93cb3751819709ab0ea80a01;p=safe%2Fjmp%2Flinux-2.6 diff --git a/arch/Kconfig b/arch/Kconfig index 550dab2..e5eb133 100644 --- a/arch/Kconfig +++ b/arch/Kconfig @@ -3,11 +3,11 @@ # config OPROFILE - tristate "OProfile system profiling (EXPERIMENTAL)" + tristate "OProfile system profiling" depends on PROFILING depends on HAVE_OPROFILE - select TRACING select RING_BUFFER + select RING_BUFFER_ALLOW_SWAP help OProfile is a profiling system capable of profiling the whole system, include the kernel, kernel modules, libraries, @@ -15,17 +15,15 @@ config OPROFILE If unsure, say N. -config OPROFILE_IBS - bool "OProfile AMD IBS support (EXPERIMENTAL)" +config OPROFILE_EVENT_MULTIPLEX + bool "OProfile multiplexing support (EXPERIMENTAL)" default n - depends on OPROFILE && SMP && X86 + depends on OPROFILE && X86 help - Instruction-Based Sampling (IBS) is a new profiling - technique that provides rich, precise program performance - information. IBS is introduced by AMD Family10h processors - (AMD Opteron Quad-Core processor "Barcelona") to overcome - the limitations of conventional performance counter - sampling. + The number of hardware counters is limited. The multiplexing + feature enables OProfile to gather more events than counters + are provided by the hardware. This is realized by switching + between events at an user specified time interval. If unsure, say N. @@ -43,6 +41,17 @@ config KPROBES for kernel debugging, non-intrusive instrumentation and testing. If in doubt, say "N". +config OPTPROBES + bool "Kprobes jump optimization support (EXPERIMENTAL)" + default y + depends on KPROBES + depends on !PREEMPT + depends on HAVE_OPTPROBES + select KALLSYMS_ALL + help + This option will allow kprobes to optimize breakpoint to + a jump for reducing its overhead. + config HAVE_EFFICIENT_UNALIGNED_ACCESS bool help @@ -69,6 +78,13 @@ config KRETPROBES def_bool y depends on KPROBES && HAVE_KRETPROBES +config USER_RETURN_NOTIFIER + bool + depends on HAVE_USER_RETURN_NOTIFIER + help + Provide a kernel-internal notification when a cpu is about to + switch to user mode. + config HAVE_IOREMAP_PROT bool @@ -78,6 +94,8 @@ config HAVE_KPROBES config HAVE_KRETPROBES bool +config HAVE_OPTPROBES + bool # # An arch should select this if it provides all these things: # @@ -100,9 +118,31 @@ config HAVE_DMA_ATTRS config USE_GENERIC_SMP_HELPERS bool +config HAVE_REGS_AND_STACK_ACCESS_API + bool + help + This symbol should be selected by an architecure if it supports + the API needed to access registers and stack entries from pt_regs, + declared in asm/ptrace.h + For example the kprobes-based event tracer needs this API. + config HAVE_CLK bool help The calls support software clock gating and thus are a key power management tool on many systems. +config HAVE_DMA_API_DEBUG + bool + +config HAVE_DEFAULT_NO_SPIN_MUTEXES + bool + +config HAVE_HW_BREAKPOINT + bool + depends on PERF_EVENTS + +config HAVE_USER_RETURN_NOTIFIER + bool + +source "kernel/gcov/Kconfig"