linux/arch/arc/kernel/disasm.c, branch v3.9Mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/
https://git.shady.money/linux/atom?h=v3.92013-02-15T17:46:06ZARC: Unaligned access emulation2013-02-15T17:46:06ZVineet Guptavgupta@synopsys.com2013-01-23T11:00:36Zurn:sha1:2e651ea1596b0ee25af4fcdc4cd13cbb33ffc254
ARC700 doesn't natively support unaligned access, but can be emulated
-Unaligned Access Exception
-Disassembly at the Fault address to find the exact insn (long/short)
Also per Arnd's comment, we runtime control it using 2 sysctl knobs:
* SYSCTL_ARCH_UNALIGN_ALLOW: Runtime enable/disble
* SYSCTL_ARCH_UNALIGN_NO_WARN: Warn on each emulation attempt
Originally contributed by Tim Yao <tim.yao@amlogic.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Cc: Tim Yao <tim.yao@amlogic.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
ARC: kprobes support2013-02-15T17:46:05ZVineet Guptavgupta@synopsys.com2013-01-22T11:33:59Zurn:sha1:4d86dfbbda09b3c67bcaeb370f22a2cc7f39205b
Origin port done by Rajeshwar Ranga
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Cc: Rajeshwar Ranga <rajeshwar.ranga@gmail.com>
ARC: disassembly (needed by kprobes/kgdb/unaligned-access-emul)2013-02-15T17:46:04ZVineet Guptavgupta@synopsys.com2013-01-30T12:16:13Zurn:sha1:e65ab5a875d9e8ad8ff37529c2ae844699fefad1
In-kernel disassembler
Due Credits
* Orig written by Rajeshwar Ranga
* Consolidation/cleanups by Mischa Jonker
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Cc: Rajeshwar Ranga <rajeshwar.ranga@gmail.com>
Cc: Mischa Jonker <mjonker@synopsys.com>