Skip to main content

Browse the archive

Revision 34f7145a63211eb7ecfcafa6c2a8db5646baf953 authored by Phil Edworthy on 24 August 2011, 10:43:59 UTC, committed by Paul Mundt on 29 August 2011, 06:32:10 UTC 
sh: Add unaligned memory access for PC relative intructions
 
This adds unaligned memory access support for the following instructions:
  mov.w @(disp,PC),Rn
  mov.l @(disp,PC),Rn

These instructions are often used on SH2A toolchains.

Signed-off-by: Phil Edworthy <phil.edworthy@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
1 parent 0710b91
Raw File
Kconfig.debug 
config DEBUG_PAGEALLOC
	bool "Debug page memory allocations"
	depends on DEBUG_KERNEL
	depends on !HIBERNATION || ARCH_SUPPORTS_DEBUG_PAGEALLOC && !PPC && !SPARC
	depends on !KMEMCHECK
	select PAGE_POISONING if !ARCH_SUPPORTS_DEBUG_PAGEALLOC
	---help---
	  Unmap pages from the kernel linear mapping after free_pages().
	  This results in a large slowdown, but helps to find certain types
	  of memory corruption.

	  For architectures which don't enable ARCH_SUPPORTS_DEBUG_PAGEALLOC,
	  fill the pages with poison patterns after free_pages() and verify
	  the patterns before alloc_pages().  Additionally,
	  this option cannot be enabled in combination with hibernation as
	  that would result in incorrect warnings of memory corruption after
	  a resume because free pages are not saved to the suspend image.

config WANT_PAGE_DEBUG_FLAGS
	bool

config PAGE_POISONING
	bool
	select WANT_PAGE_DEBUG_FLAGS
back to top