[PATCH 2/4] score: Add CPU context validation

[Sebastian Huber]

On 05/08/2013 03:32 PM, Gedare Bloom wrote:
> diff --git a/cpukit/score/cpu/no_cpu/rtems/score/cpu.h b/cpukit/score/cpu/no_cpu/rtems/score/cpu.h
>>index 8c4a61b..fae7677 100644
>>--- a/cpukit/score/cpu/no_cpu/rtems/score/cpu.h
>>+++ b/cpukit/score/cpu/no_cpu/rtems/score/cpu.h
>>@@ -1295,6 +1295,33 @@ void _CPU_Context_restore_fp(
>>  );
>>
>>  /**
>>+ * @ingroup CPUContext
>>+ *
>>+ * @brief Clobbers all volatile registers with values derived from the pattern
>>+ * parameter.
>>+ *
>>+ * This function is used in test sptests/spcontext01.
>>+ *
>>+ * @param[in] pattern Pattern used to generate distinct register values.
>>+ */
>>+void _CPU_Context_volatile_clobber( uintptr_t pattern );
>>+
>>+/**
>>+ * @ingroup CPUContext
>>+ *
>>+ * @brief Initializes and validates the CPU context with values derived from
>>+ * the pattern parameter.
>>+ *
>>+ * This function will not return if the CPU context remains consistent.  In
>>+ * case this function returns the CPU port is broken.
>>+ *
>>+ * This function is used in test sptests/spcontext01.
>>+ *
>>+ * @param[in] pattern Pattern used to generate distinct register values.
>>+ */
>>+void _CPU_Context_validate( uintptr_t pattern );

Here is an explanation.  I will copy and paste this to the CPU porting guide.

-- 
Sebastian Huber, embedded brains GmbH

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