[PATCH v3 35/38] bsp/leon3: Add specialized target hash

[Sebastian Huber]

---
 bsps/sparc/leon3/start/gettargethash.c | 71 ++++++++++++++++++++++++++
 spec/build/bsps/sparc/leon3/obj.yml    |  2 +-
 2 files changed, 72 insertions(+), 1 deletion(-)
 create mode 100644 bsps/sparc/leon3/start/gettargethash.c

diff --git a/bsps/sparc/leon3/start/gettargethash.c b/bsps/sparc/leon3/start/gettargethash.c
new file mode 100644
index 0000000000..c51031dc4f
--- /dev/null
+++ b/bsps/sparc/leon3/start/gettargethash.c
@@ -0,0 +1,71 @@
+/* SPDX-License-Identifier: BSD-2-Clause */
+
+/**
+ * @file
+ *
+ * @ingroup RTEMSBSPsSPARCLEON3
+ *
+ * @brief This source file contains the sparc/leon3 implementation of
+ *   rtems_get_target_hash().
+ */
+
+/*
+ * Copyright (C) 2021, 2022 embedded brains GmbH & Co. KG
+ *
+ * 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 <rtems/config.h>
+#include <rtems/counter.h>
+#include <rtems/sysinit.h>
+#include <rtems/score/hash.h>
+
+#include <bsp/leon3.h>
+
+static Hash_Control bsp_target_hash;
+
+static void bsp_target_hash_initialize( void )
+{
+  Hash_Context context;
+  uint32_t     frequency;
+
+  _Hash_Initialize( &context );
+
+  frequency = rtems_counter_frequency();
+  _Hash_Add_data( &context, &frequency, sizeof( frequency ) );
+
+  frequency = leon3_processor_local_bus_frequency();
+  _Hash_Add_data( &context, &frequency, sizeof( frequency ) );
+
+  _Hash_Finalize( &context, &bsp_target_hash );
+}
+
+const char *rtems_get_target_hash( void )
+{
+  return _Hash_Get_string( &bsp_target_hash );
+}
+
+RTEMS_SYSINIT_ITEM(
+  bsp_target_hash_initialize,
+  RTEMS_SYSINIT_TARGET_HASH,
+  RTEMS_SYSINIT_ORDER_SECOND
+);
diff --git a/spec/build/bsps/sparc/leon3/obj.yml b/spec/build/bsps/sparc/leon3/obj.yml
index fed50499b4..7a4ccaa0cb 100644
--- a/spec/build/bsps/sparc/leon3/obj.yml
+++ b/spec/build/bsps/sparc/leon3/obj.yml
@@ -32,7 +32,6 @@ source:
 - bsps/shared/dev/serial/console-termios.c
 - bsps/shared/irq/irq-default-handler.c
 - bsps/shared/start/bspreset-empty.c
-- bsps/shared/start/gettargethash-default.c
 - bsps/shared/start/sbrk.c
 - bsps/sparc/leon3/btimer/btimer.c
 - bsps/sparc/leon3/btimer/watchdog.c
@@ -49,6 +48,7 @@ source:
 - bsps/sparc/leon3/start/cpucounter.c
 - bsps/sparc/leon3/start/drvmgr_def_drivers.c
 - bsps/sparc/leon3/start/eirq.c
+- bsps/sparc/leon3/start/gettargethash.c
 - bsps/sparc/leon3/start/setvec.c
 - bsps/sparc/shared/gnatcommon.c
 - bsps/sparc/shared/irq/bsp_isr_handler.c
-- 
2.35.3