X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=arch%2FKconfig;h=acda512da2e21b52a972bb4255404fab3fce7015;hb=67ec66077799f2fef84b21a643912b179c422281;hp=e6ab550bceb3fda92cf1ad1e67d1e3cee1af9005;hpb=9ba16087d9f996a93ab6f4453a52a4b24bc1f25c;p=safe%2Fjmp%2Flinux-2.6 diff --git a/arch/Kconfig b/arch/Kconfig index e6ab550..acda512 100644 --- a/arch/Kconfig +++ b/arch/Kconfig @@ -3,9 +3,11 @@ # config OPROFILE - tristate "OProfile system profiling (EXPERIMENTAL)" + tristate "OProfile system profiling" depends on PROFILING depends on HAVE_OPROFILE + 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, @@ -13,17 +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. @@ -41,6 +41,12 @@ config KPROBES for kernel debugging, non-intrusive instrumentation and testing. If in doubt, say "N". +config OPTPROBES + def_bool y + depends on KPROBES && HAVE_OPTPROBES + depends on !PREEMPT + select KALLSYMS_ALL + config HAVE_EFFICIENT_UNALIGNED_ACCESS bool help @@ -60,10 +66,20 @@ config HAVE_EFFICIENT_UNALIGNED_ACCESS See Documentation/unaligned-memory-access.txt for more information on the topic of unaligned memory accesses. +config HAVE_SYSCALL_WRAPPERS + bool + 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 @@ -73,14 +89,14 @@ config HAVE_KPROBES config HAVE_KRETPROBES bool +config HAVE_OPTPROBES + bool # # An arch should select this if it provides all these things: # # task_pt_regs() in asm/processor.h or asm/ptrace.h # arch_has_single_step() if there is hardware single-step support # arch_has_block_step() if there is hardware block-step support -# arch_ptrace() and not #define __ARCH_SYS_PTRACE -# compat_arch_ptrace() and #define __ARCH_WANT_COMPAT_SYS_PTRACE # asm/syscall.h supplying asm-generic/syscall.h interface # linux/regset.h user_regset interfaces # CORE_DUMP_USE_REGSET #define'd in linux/elf.h @@ -97,9 +113,42 @@ 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_MIXED_BREAKPOINTS_REGS + bool + depends on HAVE_HW_BREAKPOINT + help + Depending on the arch implementation of hardware breakpoints, + some of them have separate registers for data and instruction + breakpoints addresses, others have mixed registers to store + them but define the access type in a control register. + Select this option if your arch implements breakpoints under the + latter fashion. + +config HAVE_USER_RETURN_NOTIFIER + bool + +source "kernel/gcov/Kconfig"