[PATCH rtems] Remove unused _IO_Relax

Joel Sherrill joel at rtems.org
Wed Jun 28 16:05:46 UTC 2023 

The only use was in a test.
---
 cpukit/include/rtems/score/io.h                    |  8 ---
 cpukit/score/src/iorelax.c                         | 53 -----------------
 spec/build/cpukit/librtemscpu.yml                  |  1 -
 spec/build/testsuites/validation/libvalidation.yml |  1 -
 testsuites/validation/tx-io-relax.c                | 67 ----------------------
 5 files changed, 130 deletions(-)
 delete mode 100644 cpukit/score/src/iorelax.c
 delete mode 100644 testsuites/validation/tx-io-relax.c

diff --git a/cpukit/include/rtems/score/io.h b/cpukit/include/rtems/score/io.h
index 9cd401e..7fe6984 100644
--- a/cpukit/include/rtems/score/io.h
+++ b/cpukit/include/rtems/score/io.h
@@ -133,14 +133,6 @@ int _IO_Base64url(
   int          wordlen
 );
 
-/**
- * @brief Issues a couple of no-operation instructions.
- *
- * This function may be used to burn a couple of processor cycles with minimum
- * impact on the system bus.  It may be used in busy wait loops.
- */
-void _IO_Relax( void );
-
 /** @} */ 
 
 #ifdef __cplusplus
diff --git a/cpukit/score/src/iorelax.c b/cpukit/score/src/iorelax.c
deleted file mode 100644
index 1b15537..0000000
--- a/cpukit/score/src/iorelax.c
+++ /dev/null
@@ -1,53 +0,0 @@
-/* SPDX-License-Identifier: BSD-2-Clause */
-
-/**
- * @file
- *
- * @ingroup RTEMSScoreIO
- *
- * @brief This source file contains the implementation of _IO_Relax().
- */
-
-/*
- * Copyright (C) 2021 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.
- */
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include <rtems/score/io.h>
-#include <rtems/score/cpuimpl.h>
-
-void _IO_Relax( void )
-{
-  _CPU_Instruction_no_operation();
-  _CPU_Instruction_no_operation();
-  _CPU_Instruction_no_operation();
-  _CPU_Instruction_no_operation();
-  _CPU_Instruction_no_operation();
-  _CPU_Instruction_no_operation();
-  _CPU_Instruction_no_operation();
-  _CPU_Instruction_no_operation();
-}
diff --git a/spec/build/cpukit/librtemscpu.yml b/spec/build/cpukit/librtemscpu.yml
index 3654e7f..a1f614a 100644
--- a/spec/build/cpukit/librtemscpu.yml
+++ b/spec/build/cpukit/librtemscpu.yml
@@ -1434,7 +1434,6 @@ source:
 - cpukit/score/src/interr.c
 - cpukit/score/src/iobase64.c
 - cpukit/score/src/ioprintf.c
-- cpukit/score/src/iorelax.c
 - cpukit/score/src/iovprintf.c
 - cpukit/score/src/isr.c
 - cpukit/score/src/isrisinprogress.c
diff --git a/spec/build/testsuites/validation/libvalidation.yml b/spec/build/testsuites/validation/libvalidation.yml
index f73b0f7..9b326b8 100644
--- a/spec/build/testsuites/validation/libvalidation.yml
+++ b/spec/build/testsuites/validation/libvalidation.yml
@@ -14,7 +14,6 @@ source:
 - testsuites/validation/tx-call-within-isr.c
 - testsuites/validation/tx-default-task-config.c
 - testsuites/validation/tx-interrupt.c
-- testsuites/validation/tx-io-relax.c
 - testsuites/validation/tx-memory-alloc.c
 - testsuites/validation/tx-preemption-intervention.c
 - testsuites/validation/tx-support.c
diff --git a/testsuites/validation/tx-io-relax.c b/testsuites/validation/tx-io-relax.c
deleted file mode 100644
index 30cc097..0000000
--- a/testsuites/validation/tx-io-relax.c
+++ /dev/null
@@ -1,67 +0,0 @@
-/* SPDX-License-Identifier: BSD-2-Clause */
-
-/**
- * @file
- *
- * @ingroup RTEMSTestSuitesValidation
- *
- * @brief This source file contains the implementation of SetIORelaxHandler().
- */
-
-/*
- * Copyright (C) 2021 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.
- */
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include "tx-support.h"
-
-void __real__IO_Relax( void );
-
-void __wrap__IO_Relax( void );
-
-static void ( *io_relax_handler )( void * );
-
-static void *io_relax_arg;
-
-void __wrap__IO_Relax( void )
-{
-  void ( *handler )( void * );
-
-  handler = io_relax_handler;
-
-  if ( handler != NULL ) {
-    ( *handler )( io_relax_arg );
-  }
-
-  __real__IO_Relax();
-}
-
-void SetIORelaxHandler( void ( *handler )( void * ), void *arg )
-{
-  io_relax_handler = handler;
-  io_relax_arg = arg;
-}
-- 
1.8.3.1

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