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arch/Kconfig 2.57 KB
fb32e03fd   Mathieu Desnoyers   Create arch/Kconfig
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  #
  # General architecture dependent options
  #
125e56458   Mathieu Desnoyers   Move Kconfig.inst...
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  config OPROFILE
  	tristate "OProfile system profiling (EXPERIMENTAL)"
  	depends on PROFILING
  	depends on HAVE_OPROFILE
  	help
  	  OProfile is a profiling system capable of profiling the
  	  whole system, include the kernel, kernel modules, libraries,
  	  and applications.
  
  	  If unsure, say N.
  
  config HAVE_OPROFILE
  	def_bool n
  
  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".
58340a07c   Johannes Berg   introduce HAVE_EF...
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  config HAVE_EFFICIENT_UNALIGNED_ACCESS
  	def_bool n
  	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.
9edddaa20   Ananth N Mavinakayanahalli   Kprobes: indicate...
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  config KRETPROBES
  	def_bool y
  	depends on KPROBES && HAVE_KRETPROBES
28b2ee20c   Rik van Riel   access_process_vm...
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  config HAVE_IOREMAP_PROT
  	def_bool n
125e56458   Mathieu Desnoyers   Move Kconfig.inst...
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  config HAVE_KPROBES
  	def_bool n
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  config HAVE_KRETPROBES
  	def_bool n
74bc7ceeb   Arthur Kepner   dma: add dma_*map...
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1f5a4ad97   Roland McGrath   tracehook: CONFIG...
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  #
  # 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
  #	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
  	def_bool n
74bc7ceeb   Arthur Kepner   dma: add dma_*map...
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  config HAVE_DMA_ATTRS
  	def_bool n
3d4422332   Jens Axboe   Add generic helpe...
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  config USE_GENERIC_SMP_HELPERS
  	def_bool n
9483a578d   David Brownell   add HAVE_CLK to K...
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  config HAVE_CLK
  	def_bool n
  	help
  	  The <linux/clk.h> calls support software clock gating and
  	  thus are a key power management tool on many systems.