* [PATCH 18/31] Add debugger entry points for C6X
@ 2016-01-28 19:47 Jeffrey Merkey
2016-02-11 22:52 ` Mark Salter
0 siblings, 1 reply; 2+ messages in thread
From: Jeffrey Merkey @ 2016-01-28 19:47 UTC (permalink / raw)
To: linux-kernel; +Cc: msalter, a-jacquiot, linux.mdb, linux-c6x-dev
This patch series adds an export which can be set by system debuggers to
direct the hard lockup and soft lockup detector to trigger a breakpoint
exception and enter a debugger if one is active. It is assumed that if
someone sets this variable, then an breakpoint handler of some sort will
be actively loaded or registered via the notify die handler chain.
This addition is extremely useful for debugging hard and soft lockups
real time and quickly from a console debugger.
Signed-off-by: Jeffrey Merkey <jeffmerkey@gmail.com>
---
arch/c6x/include/asm/kdebug.h | 4 ++++
1 file changed, 4 insertions(+)
create mode 100644 arch/c6x/include/asm/kdebug.h
diff --git a/arch/c6x/include/asm/kdebug.h b/arch/c6x/include/asm/kdebug.h
new file mode 100644
index 0000000..5d09de1
--- /dev/null
+++ b/arch/c6x/include/asm/kdebug.h
@@ -0,0 +1,4 @@
+
+static inline void arch_breakpoint(void)
+{
+}
--
1.8.3.1
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH 18/31] Add debugger entry points for C6X
2016-01-28 19:47 [PATCH 18/31] Add debugger entry points for C6X Jeffrey Merkey
@ 2016-02-11 22:52 ` Mark Salter
0 siblings, 0 replies; 2+ messages in thread
From: Mark Salter @ 2016-02-11 22:52 UTC (permalink / raw)
To: Jeffrey Merkey, linux-kernel; +Cc: a-jacquiot, linux.mdb, linux-c6x-dev
On Thu, 2016-01-28 at 12:47 -0700, Jeffrey Merkey wrote:
> This patch series adds an export which can be set by system debuggers to
> direct the hard lockup and soft lockup detector to trigger a breakpoint
> exception and enter a debugger if one is active. It is assumed that if
> someone sets this variable, then an breakpoint handler of some sort will
> be actively loaded or registered via the notify die handler chain.
>
> This addition is extremely useful for debugging hard and soft lockups
> real time and quickly from a console debugger.
>
> Signed-off-by: Jeffrey Merkey <jeffmerkey@gmail.com>
> ---
Acked-by: Mark Salter <msalter@redhat.com>
> arch/c6x/include/asm/kdebug.h | 4 ++++
> 1 file changed, 4 insertions(+)
> create mode 100644 arch/c6x/include/asm/kdebug.h
>
> diff --git a/arch/c6x/include/asm/kdebug.h b/arch/c6x/include/asm/kdebug.h
> new file mode 100644
> index 0000000..5d09de1
> --- /dev/null
> +++ b/arch/c6x/include/asm/kdebug.h
> @@ -0,0 +1,4 @@
> +
> +static inline void arch_breakpoint(void)
> +{
> +}
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