[rtems commit] config: Add CONFIGURE_RECORD_INTERRUPTS_ENABLED
Sebastian Huber
sebh at rtems.org
Fri Dec 2 09:13:23 UTC 2022
Module: rtems
Branch: master
Commit: c46fbb955258df3ff3c325dadd1a6c17ee81a914
Changeset: http://git.rtems.org/rtems/commit/?id=c46fbb955258df3ff3c325dadd1a6c17ee81a914
Author: Sebastian Huber <sebastian.huber at embedded-brains.de>
Date: Thu Dec 1 10:21:25 2022 +0100
config: Add CONFIGURE_RECORD_INTERRUPTS_ENABLED
This enables the tracing of interrupt entry/exit events through an
application configuration option. The interrupt processing can be
viewed with Trace Compass using rtems-record-lttng from the RTEMS Tools.
Update #4769.
---
bsps/shared/irq/irq-record.c | 97 ++++++++++++++++++++++++++++++
cpukit/doxygen/appl-config.h | 23 +++++++
cpukit/include/rtems/confdefs/extensions.h | 8 +++
cpukit/include/rtems/record.h | 2 +
spec/build/bsps/objirq.yml | 1 +
spec/build/bsps/powerpc/ss555/bspss555.yml | 1 +
6 files changed, 132 insertions(+)
diff --git a/bsps/shared/irq/irq-record.c b/bsps/shared/irq/irq-record.c
new file mode 100644
index 0000000000..9f0a008d84
--- /dev/null
+++ b/bsps/shared/irq/irq-record.c
@@ -0,0 +1,97 @@
+/* SPDX-License-Identifier: BSD-2-Clause */
+
+/**
+ * @file
+ *
+ * @ingroup bsp_interrupt
+ *
+ * @brief This source file contains the implementation of the interrupt event
+ * recording support.
+ */
+
+/*
+ * Copyright (C) 2022 embedded brains GmbH
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <bsp/irq-generic.h>
+
+#include <rtems/record.h>
+
+/* The regular interrupt entries are registered in this table */
+static rtems_interrupt_entry *
+_Record_Interrupt_dispatch_table[ BSP_INTERRUPT_DISPATCH_TABLE_SIZE ];
+
+/*
+ * Provide one interrupt entry for the _Record_Interrupt_handler() interrupt
+ * dispatch wrapper for each interrupt vector.
+ */
+static rtems_interrupt_entry
+_Record_Interrupt_entry_table[ BSP_INTERRUPT_DISPATCH_TABLE_SIZE ];
+
+rtems_interrupt_entry **bsp_interrupt_get_dispatch_table_slot(
+ rtems_vector_number index
+)
+{
+ return &_Record_Interrupt_dispatch_table[ index ];
+}
+
+static void _Record_Interrupt_handler( void *arg )
+{
+ uintptr_t vector;
+ rtems_interrupt_entry *entry;
+
+ vector = (uintptr_t) arg;
+ rtems_record_produce( RTEMS_RECORD_INTERRUPT_ENTRY, vector );
+
+ entry = bsp_interrupt_entry_load_acquire(
+ &_Record_Interrupt_dispatch_table[ vector ]
+ );
+
+ if ( RTEMS_PREDICT_TRUE( entry != NULL ) ) {
+ bsp_interrupt_dispatch_entries( entry );
+ } else {
+#if defined(RTEMS_SMP)
+ bsp_interrupt_spurious( vector );
+#else
+ bsp_interrupt_handler_default( vector );
+#endif
+ }
+
+ rtems_record_produce( RTEMS_RECORD_INTERRUPT_EXIT, vector );
+}
+
+void _Record_Interrupt_initialize( void )
+{
+ uintptr_t i;
+
+ /*
+ * Let each interrupt dispatch table slot reference the
+ * _Record_Interrupt_handler() interrupt dispatch wrapper.
+ */
+ for ( i = 0; i < BSP_INTERRUPT_DISPATCH_TABLE_SIZE; ++i ) {
+ _Record_Interrupt_entry_table[ i ].handler = _Record_Interrupt_handler;
+ _Record_Interrupt_entry_table[ i ].arg = (void *) i;
+ bsp_interrupt_dispatch_table[ i ] = &_Record_Interrupt_entry_table[ i ];
+ }
+}
diff --git a/cpukit/doxygen/appl-config.h b/cpukit/doxygen/appl-config.h
index 88cd03d328..964f8d0616 100644
--- a/cpukit/doxygen/appl-config.h
+++ b/cpukit/doxygen/appl-config.h
@@ -1911,6 +1911,29 @@
*/
#define CONFIGURE_RECORD_FATAL_DUMP_BASE64_ZLIB
+/* Generated from spec:/acfg/if/record-interrupts-enabled */
+
+/**
+ * @brief This configuration option is a boolean feature define.
+ *
+ * In case
+ *
+ * * this configuration option is defined
+ *
+ * * and #CONFIGURE_RECORD_PER_PROCESSOR_ITEMS is properly defined,
+ *
+ * then the interrupt event recording is enabled.
+ *
+ * @par Default Configuration
+ * If this configuration option is undefined, then the described feature is not
+ * enabled.
+ *
+ * @par Notes
+ * The interrupt event recording generates interrupt entry and exit events when
+ * interrupt entries are dispatched.
+ */
+#define CONFIGURE_RECORD_INTERRUPTS_ENABLED
+
/* Generated from spec:/acfg/if/record-per-processor-items */
/**
diff --git a/cpukit/include/rtems/confdefs/extensions.h b/cpukit/include/rtems/confdefs/extensions.h
index 118ad29484..a369ef1f61 100644
--- a/cpukit/include/rtems/confdefs/extensions.h
+++ b/cpukit/include/rtems/confdefs/extensions.h
@@ -188,6 +188,14 @@ extern "C" {
RTEMS_SYSINIT_RECORD,
RTEMS_SYSINIT_ORDER_MIDDLE
);
+
+ #ifdef CONFIGURE_RECORD_INTERRUPTS_ENABLED
+ RTEMS_SYSINIT_ITEM(
+ _Record_Interrupt_initialize,
+ RTEMS_SYSINIT_LAST,
+ RTEMS_SYSINIT_ORDER_MIDDLE
+ );
+ #endif
#endif
#ifdef CONFIGURE_VERBOSE_SYSTEM_INITIALIZATION
diff --git a/cpukit/include/rtems/record.h b/cpukit/include/rtems/record.h
index a8e115ad44..8a84c22bdc 100644
--- a/cpukit/include/rtems/record.h
+++ b/cpukit/include/rtems/record.h
@@ -67,6 +67,8 @@ extern const Record_Configuration _Record_Configuration;
void _Record_Initialize( void );
+void _Record_Interrupt_initialize( void );
+
bool _Record_Thread_create(
struct _Thread_Control *executing,
struct _Thread_Control *created
diff --git a/spec/build/bsps/objirq.yml b/spec/build/bsps/objirq.yml
index 0766c1ea58..553065e97b 100644
--- a/spec/build/bsps/objirq.yml
+++ b/spec/build/bsps/objirq.yml
@@ -21,6 +21,7 @@ source:
- bsps/shared/irq/irq-info.c
- bsps/shared/irq/irq-legacy.c
- bsps/shared/irq/irq-lock.c
+- bsps/shared/irq/irq-record.c
- bsps/shared/irq/irq-server.c
- bsps/shared/irq/irq-shell.c
type: build
diff --git a/spec/build/bsps/powerpc/ss555/bspss555.yml b/spec/build/bsps/powerpc/ss555/bspss555.yml
index 1f3d962e77..c0c9bbfb03 100644
--- a/spec/build/bsps/powerpc/ss555/bspss555.yml
+++ b/spec/build/bsps/powerpc/ss555/bspss555.yml
@@ -80,6 +80,7 @@ source:
- bsps/shared/irq/irq-handler-remove.c
- bsps/shared/irq/irq-info.c
- bsps/shared/irq/irq-lock.c
+- bsps/shared/irq/irq-record.c
- bsps/shared/irq/irq-server.c
- bsps/shared/irq/irq-shell.c
- bsps/shared/start/bspfatal-default.c
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