Groups > linux.kernel > #1320980

[PATCH 20/31] Add debugger entry points for M32R

From	Jeffrey Merkey <jeffmerkey@gmail.com>
Newsgroups	linux.kernel
Subject	[PATCH 20/31] Add debugger entry points for M32R
Date	2016-01-28 20:50 +0100
Message-ID	<qW0JQ-8ef-31@gated-at.bofh.it> (permalink)
Organization	linux.* mail to news gateway

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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/m32r/include/asm/kdebug.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/m32r/include/asm/kdebug.h b/arch/m32r/include/asm/kdebug.h
index 6ece1b0..9d74f54 100644
--- a/arch/m32r/include/asm/kdebug.h
+++ b/arch/m32r/include/asm/kdebug.h
@@ -1 +1,5 @@
 #include <asm-generic/kdebug.h>
+
+static inline void arch_breakpoint(void)
+{
+}
-- 
1.8.3.1

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[PATCH 20/31] Add debugger entry points for M32R Jeffrey Merkey <jeffmerkey@gmail.com> - 2016-01-28 20:50 +0100

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