linux/arch/arc/kernel/traps.c, branch v4.2Mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/
https://git.shady.money/linux/atom?h=v4.22015-04-13T09:44:57ZARC: rename unhandled exception handler2015-04-13T09:44:57ZVineet Guptavgupta@synopsys.com2014-10-13T09:59:50Zurn:sha1:0dfb8ec70fd67be02096eaf9898feb94950d6f06
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
ARC: Reduce #ifdef'ery for unaligned access emulation2013-11-06T05:11:39ZVineet Guptavgupta@synopsys.com2013-09-18T12:38:01Zurn:sha1:07ba69a46c3394fe6675483275337e5a79a959e0
Emulation not enabled is treated as if the fixup failed, so no need for
special #ifdef checks.
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
ARC: Remove explicit passing around of ECR2013-06-26T10:00:50ZVineet Guptavgupta@synopsys.com2013-06-12T09:43:40Zurn:sha1:38a9ff6d247cf9afcbe55ea245b650b8955029fd
With ECR now part of pt_regs
* No need to propagate from lowest asm handlers as arg
* No need to save it in tsk->thread.cause_code
* Avoid bit chopping to access the bit-fields
More code consolidation, cleanup
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
ARC: unaligned access emulation error handling consolidation2013-05-07T08:13:55ZVineet Guptavgupta@synopsys.com2013-04-04T09:07:52Zurn:sha1:c723ea4620a67fb0dbed5f5c33183543799e2177
If CONFIG_ARC_MISALIGN_ACCESS is not enabled, or if the fixup fails,
call the same error handler: same signal/si_code to user (SIGBUS)
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
ARC: [build] Build failure with !KPROBES2013-04-09T11:56:50ZChristian Ruppertchristian.ruppert@abilis.com2013-04-09T09:50:45Zurn:sha1:5b00029e30ef821152fa82502658e538172d6b75
arch/arc/kernel/traps.c no longer compiles without explicitly including
asm/kprobes.h
Signed-off-by: Christian Ruppert <christian.ruppert@abilis.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
ARC: Use <linux/*> headers instead of <asm/*>2013-04-09T06:51:14ZSachin Kamatsachin.kamat@linaro.org2013-03-06T11:23:44Zurn:sha1:1ec9db1056b0c4b8b9dfca4736634c7c8e0833d5
Silences the following checkpatch warnings:
WARNING: Use #include <linux/ptrace.h> instead of <asm/ptrace.h>
WARNING: Use #include <linux/kprobes.h> instead of <asm/kprobes.h>
WARNING: Use #include <linux/kgdb.h> instead of <asm/kgdb.h>
WARNING: Use #include <linux/uaccess.h> instead of <asm/uaccess.h>
WARNING: Use #include <linux/cache.h> instead of <asm/cache.h>
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
ARC: kgdb support2013-02-15T17:46:07ZMischa Jonkermjonker@synopsys.com2013-01-18T09:42:24Zurn:sha1:f46121bd26d7957866739313f1e098a682e8d3e4
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>
ARC: 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: Non-MMU Exception Handling2013-02-11T14:30:37ZVineet Guptavgupta@synopsys.com2013-01-18T09:42:18Zurn:sha1:054419ed8405da7aa93f88f698d696980efd3e37
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>