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capture: Add SMP support.

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To support smp data was broken into global and percpu capture data.
Capture control must be disabled prior to printing or setting of
watch points.
This commit is contained in:
Jennifer Averett
2014-11-24 14:04:54 -06:00
parent 04a13bdf74
commit 66bf2af278
3 changed files with 235 additions and 219 deletions
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cpukit/libmisc/capture/capture.c
+219 -194
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File diff suppressed because it is too large Load Diff
cpukit/libmisc/capture/capture.h
+4 -18
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@@ -520,9 +520,6 @@ rtems_capture_clear_trigger (rtems_name from_name,
* @brief Capture read records from capture buffer
*
* This function reads a number of records from the capture buffer.
* The user can optionally block and wait until the buffer as a
* specific number of records available or a specific time has
* elasped.
*
* The function returns the number of record that is has that are
* in a continous block of memory. If the number of available records
@@ -535,17 +532,7 @@ rtems_capture_clear_trigger (rtems_name from_name,
* rtems_capture_release. Calls this function without a release will
* result in at least the same number of records being released.
*
* The 'threshold' parameter is the number of records that must be
* captured before returning. If a timeout period is specified (non-0)
* any captured records will be returned. These parameters stop
* thrashing occuring for a small number of records, yet allows
* a user configured latiency to be applied for single events.
*
* The @a timeout parameter is in microseconds. A value of 0 will
* disable the timeout.
*
* @param[in] threshold The number of records that must be captured
* @param[in] timeout The micro-second timeout period
* @param[in] cpu The cpu number that the records were recorded on
* @param[out] read will contain the number of records read
* @param[out] recs The capture records that are read.
*
@@ -554,8 +541,7 @@ rtems_capture_clear_trigger (rtems_name from_name,
* source of the error.
*/
rtems_status_code
rtems_capture_read (uint32_t threshold,
uint32_t timeout,
rtems_capture_read (uint32_t cpu,
uint32_t* read,
rtems_capture_record_t** recs);
@@ -566,13 +552,13 @@ rtems_capture_read (uint32_t threshold,
* to the capture engine. The count must match the number read.
*
* @param[in] count The number of record slots to release
*
*
* @retval This method returns RTEMS_SUCCESSFUL if there was not an
* error. Otherwise, a status code is returned indicating the
* source of the error.
*/
rtems_status_code
rtems_capture_release (uint32_t count);
rtems_capture_release (uint32_t cpu, uint32_t count);
/*
* @brief Capture nano-second time period.
cpukit/libmisc/capture/captureimpl.h
+12 -7
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@@ -43,14 +43,19 @@ extern "C" {
/*
* Global capture flags.
*/
#define RTEMS_CAPTURE_ON (1U << 0)
#define RTEMS_CAPTURE_NO_MEMORY (1U << 1)
#define RTEMS_CAPTURE_OVERFLOW (1U << 2)
#define RTEMS_CAPTURE_INIT (1u << 0)
#define RTEMS_CAPTURE_ON (1U << 1)
#define RTEMS_CAPTURE_NO_MEMORY (1U << 2)
#define RTEMS_CAPTURE_TRIGGERED (1U << 3)
#define RTEMS_CAPTURE_READER_ACTIVE (1U << 4)
#define RTEMS_CAPTURE_READER_WAITING (1U << 5)
#define RTEMS_CAPTURE_GLOBAL_WATCH (1U << 6)
#define RTEMS_CAPTURE_ONLY_MONITOR (1U << 7)
#define RTEMS_CAPTURE_GLOBAL_WATCH (1U << 4)
#define RTEMS_CAPTURE_ONLY_MONITOR (1U << 5)
/*
* Per-CPU capture flags.
*/
#define RTEMS_CAPTURE_OVERFLOW (1U << 0)
#define RTEMS_CAPTURE_READER_ACTIVE (1U << 1)
#define RTEMS_CAPTURE_READER_WAITING (1U << 2)
/**
* @brief Capture set extension index.