X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=arch%2FKconfig;h=acda512da2e21b52a972bb4255404fab3fce7015;hb=f949c0edd84101bfd30b3e7389c1a12b067e561d;hp=4d5ebbc1e72b376afbdece5e001644a49a11ebe8;hpb=9483a578df27fe7603605d565eefe039c1ba5845;p=safe%2Fjmp%2Flinux-2.6 diff --git a/arch/Kconfig b/arch/Kconfig index 4d5ebbc..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, @@ -13,8 +15,20 @@ config OPROFILE If unsure, say N. +config OPROFILE_EVENT_MULTIPLEX + bool "OProfile multiplexing support (EXPERIMENTAL)" + default n + depends on OPROFILE && X86 + help + 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. + config HAVE_OPROFILE - def_bool n + bool config KPROBES bool "Kprobes" @@ -27,25 +41,114 @@ 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 + Some architectures are unable to perform unaligned accesses + without the use of get_unaligned/put_unaligned. Others are + unable to perform such accesses efficiently (e.g. trap on + unaligned access and require fixing it up in the exception + handler.) + + This symbol should be selected by an architecture if it can + perform unaligned accesses efficiently to allow different + code paths to be selected for these cases. Some network + drivers, for example, could opt to not fix up alignment + problems with received packets if doing so would not help + much. + + 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 + config HAVE_KPROBES - def_bool n + bool config HAVE_KRETPROBES - def_bool n + 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 +# 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 +# TIF_SYSCALL_TRACE calls tracehook_report_syscall_{entry,exit} +# TIF_NOTIFY_RESUME calls tracehook_notify_resume() +# signal delivery calls tracehook_signal_handler() +# +config HAVE_ARCH_TRACEHOOK + bool config HAVE_DMA_ATTRS - def_bool n + bool config USE_GENERIC_SMP_HELPERS - def_bool n + 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 - def_bool n + 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"