X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=arch%2FKconfig;h=9d055b4f058556450363c3843ad17f07518fae93;hb=e071041be037eca208b62b84469a06bdfc692bea;hp=3d72dc3fc8f52f5d822cc6c256e21fb21e2b4f61;hpb=125e564582cbce6219397fc64556438420efae4c;p=safe%2Fjmp%2Flinux-2.6 diff --git a/arch/Kconfig b/arch/Kconfig index 3d72dc3..9d055b4 100644 --- a/arch/Kconfig +++ b/arch/Kconfig @@ -6,6 +6,10 @@ config OPROFILE tristate "OProfile system profiling (EXPERIMENTAL)" depends on PROFILING depends on HAVE_OPROFILE + depends on TRACING_SUPPORT + 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, @@ -13,8 +17,34 @@ config OPROFILE If unsure, say N. +config OPROFILE_IBS + bool "OProfile AMD IBS support (EXPERIMENTAL)" + default n + depends on OPROFILE && SMP && 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. + + 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" @@ -27,5 +57,87 @@ config KPROBES for kernel debugging, non-intrusive instrumentation and testing. If in doubt, say "N". +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 + 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 + bool + +config USE_GENERIC_SMP_HELPERS + bool + +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"