2008-02-03 03:10:33 +07:00
|
|
|
#
|
|
|
|
# General architecture dependent options
|
|
|
|
#
|
2008-02-03 03:10:36 +07:00
|
|
|
|
|
|
|
config OPROFILE
|
2010-02-26 21:01:23 +07:00
|
|
|
tristate "OProfile system profiling"
|
2008-02-03 03:10:36 +07:00
|
|
|
depends on PROFILING
|
|
|
|
depends on HAVE_OPROFILE
|
2008-12-12 15:38:57 +07:00
|
|
|
select RING_BUFFER
|
2009-09-17 02:56:49 +07:00
|
|
|
select RING_BUFFER_ALLOW_SWAP
|
2008-02-03 03:10:36 +07:00
|
|
|
help
|
|
|
|
OProfile is a profiling system capable of profiling the
|
|
|
|
whole system, include the kernel, kernel modules, libraries,
|
|
|
|
and applications.
|
|
|
|
|
|
|
|
If unsure, say N.
|
|
|
|
|
2009-07-08 18:49:38 +07:00
|
|
|
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.
|
|
|
|
|
2008-02-03 03:10:36 +07:00
|
|
|
config HAVE_OPROFILE
|
2008-10-16 12:01:38 +07:00
|
|
|
bool
|
2008-02-03 03:10:36 +07:00
|
|
|
|
|
|
|
config KPROBES
|
|
|
|
bool "Kprobes"
|
|
|
|
depends on KALLSYMS && MODULES
|
|
|
|
depends on HAVE_KPROBES
|
|
|
|
help
|
|
|
|
Kprobes allows you to trap at almost any kernel address and
|
|
|
|
execute a callback function. register_kprobe() establishes
|
|
|
|
a probepoint and specifies the callback. Kprobes is useful
|
|
|
|
for kernel debugging, non-intrusive instrumentation and testing.
|
|
|
|
If in doubt, say "N".
|
|
|
|
|
2010-02-25 20:34:07 +07:00
|
|
|
config OPTPROBES
|
2010-03-16 00:00:54 +07:00
|
|
|
def_bool y
|
|
|
|
depends on KPROBES && HAVE_OPTPROBES
|
2010-02-25 20:34:07 +07:00
|
|
|
depends on !PREEMPT
|
|
|
|
select KALLSYMS_ALL
|
|
|
|
|
2008-07-25 15:45:33 +07:00
|
|
|
config HAVE_EFFICIENT_UNALIGNED_ACCESS
|
2008-10-16 12:01:38 +07:00
|
|
|
bool
|
2008-07-25 15:45:33 +07:00
|
|
|
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.
|
|
|
|
|
2009-01-14 20:13:59 +07:00
|
|
|
config HAVE_SYSCALL_WRAPPERS
|
|
|
|
bool
|
|
|
|
|
2008-03-05 05:28:37 +07:00
|
|
|
config KRETPROBES
|
|
|
|
def_bool y
|
|
|
|
depends on KPROBES && HAVE_KRETPROBES
|
|
|
|
|
2009-09-19 13:40:22 +07:00
|
|
|
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.
|
|
|
|
|
2008-07-24 11:27:05 +07:00
|
|
|
config HAVE_IOREMAP_PROT
|
2008-10-16 12:01:38 +07:00
|
|
|
bool
|
2008-07-24 11:27:05 +07:00
|
|
|
|
2008-02-03 03:10:36 +07:00
|
|
|
config HAVE_KPROBES
|
2008-10-16 12:01:38 +07:00
|
|
|
bool
|
2008-03-05 05:28:37 +07:00
|
|
|
|
|
|
|
config HAVE_KRETPROBES
|
2008-10-16 12:01:38 +07:00
|
|
|
bool
|
2008-04-29 15:00:30 +07:00
|
|
|
|
2010-02-25 20:34:07 +07:00
|
|
|
config HAVE_OPTPROBES
|
|
|
|
bool
|
2008-07-26 09:45:57 +07:00
|
|
|
#
|
|
|
|
# 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
|
2008-10-16 12:01:38 +07:00
|
|
|
bool
|
2008-07-26 09:45:57 +07:00
|
|
|
|
2008-04-29 15:00:30 +07:00
|
|
|
config HAVE_DMA_ATTRS
|
2008-10-16 12:01:38 +07:00
|
|
|
bool
|
2008-06-26 16:21:34 +07:00
|
|
|
|
|
|
|
config USE_GENERIC_SMP_HELPERS
|
2008-10-16 12:01:38 +07:00
|
|
|
bool
|
2008-07-24 11:26:48 +07:00
|
|
|
|
2010-02-10 23:25:17 +07:00
|
|
|
config HAVE_REGS_AND_STACK_ACCESS_API
|
|
|
|
bool
|
2010-02-18 20:25:21 +07:00
|
|
|
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.
|
2010-02-10 23:25:17 +07:00
|
|
|
|
2008-07-24 11:26:48 +07:00
|
|
|
config HAVE_CLK
|
2008-10-16 12:01:38 +07:00
|
|
|
bool
|
2008-07-24 11:26:48 +07:00
|
|
|
help
|
|
|
|
The <linux/clk.h> calls support software clock gating and
|
|
|
|
thus are a key power management tool on many systems.
|
|
|
|
|
2009-01-09 18:14:24 +07:00
|
|
|
config HAVE_DMA_API_DEBUG
|
|
|
|
bool
|
2009-04-09 23:48:34 +07:00
|
|
|
|
|
|
|
config HAVE_DEFAULT_NO_SPIN_MUTEXES
|
|
|
|
bool
|
2009-06-02 01:13:33 +07:00
|
|
|
|
|
|
|
config HAVE_HW_BREAKPOINT
|
|
|
|
bool
|
2009-12-17 07:33:54 +07:00
|
|
|
depends on PERF_EVENTS
|
2009-06-02 01:13:33 +07:00
|
|
|
|
2010-04-11 23:55:56 +07:00
|
|
|
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.
|
|
|
|
|
2009-09-19 13:40:22 +07:00
|
|
|
config HAVE_USER_RETURN_NOTIFIER
|
|
|
|
bool
|
2009-09-07 13:19:51 +07:00
|
|
|
|
2009-06-18 06:28:08 +07:00
|
|
|
source "kernel/gcov/Kconfig"
|