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4 Commits

Author SHA1 Message Date
Mischa Jonker
f46121bd26 ARC: kgdb support 
Signed-off-by: Mischa Jonker <mjonker@synopsys.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Cc: Jason Wessel <jason.wessel@windriver.com>
Acked-by: Jason Wessel <jason.wessel@windriver.com>
 2013-02-15 23:16:07 +05:30
Vineet Gupta
2e651ea159 ARC: Unaligned access emulation 
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>
 2013-02-15 23:16:06 +05:30
Vineet Gupta
4d86dfbbda ARC: kprobes support 
Origin port done by Rajeshwar Ranga

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Cc: Rajeshwar Ranga <rajeshwar.ranga@gmail.com>
 2013-02-15 23:16:05 +05:30
Vineet Gupta
054419ed84 ARC: Non-MMU Exception Handling 
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
 2013-02-11 20:00:37 +05:30