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-rw-r--r--cpukit/score/cpu/no_cpu/include/rtems/score/cpuimpl.h84
1 files changed, 77 insertions, 7 deletions
diff --git a/cpukit/score/cpu/no_cpu/include/rtems/score/cpuimpl.h b/cpukit/score/cpu/no_cpu/include/rtems/score/cpuimpl.h
index 5f9196042c..61f1ab7ba5 100644
--- a/cpukit/score/cpu/no_cpu/include/rtems/score/cpuimpl.h
+++ b/cpukit/score/cpu/no_cpu/include/rtems/score/cpuimpl.h
@@ -1,3 +1,5 @@
+/* SPDX-License-Identifier: BSD-2-Clause */
+
/**
* @file
*
@@ -5,11 +7,28 @@
*/
/*
- * Copyright (c) 2013, 2016 embedded brains GmbH
- *
- * The license and distribution terms for this file may be
- * found in the file LICENSE in this distribution or at
- * http://www.rtems.org/license/LICENSE.
+ * Copyright (C) 2013, 2016 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.
*/
#ifndef _RTEMS_SCORE_CPUIMPL_H
@@ -35,6 +54,24 @@
*/
#define CPU_PER_CPU_CONTROL_SIZE 0
+/**
+ * @brief Defines the thread-local storage (TLS) variant.
+ *
+ * Use one of the following values:
+ *
+ * 10: The architecture uses Variant I and the TLS offsets emitted by the
+ * linker neglect the TCB (examples: nios2, m68k, microblaze, powerpc,
+ * riscv). The thread pointer directly references the thread-local data
+ * area.
+ *
+ * 11: The architecture uses Variant I and the TLS offsets emitted by the
+ * linker take the TCB into account (examples: arm, aarch64).
+ * The thread pointer references the TCB.
+ *
+ * 20: The architecture uses Variant II (examples: i386, sparc).
+ */
+#define CPU_THREAD_LOCAL_STORAGE_VARIANT 10
+
#ifndef ASM
#ifdef __cplusplus
@@ -132,7 +169,7 @@ void _CPU_Context_validate( uintptr_t pattern );
*
* This function is used only in test sptests/spfatal26.
*/
-RTEMS_INLINE_ROUTINE void _CPU_Instruction_illegal( void )
+static inline void _CPU_Instruction_illegal( void )
{
__asm__ volatile ( ".word 0" );
}
@@ -142,11 +179,44 @@ RTEMS_INLINE_ROUTINE void _CPU_Instruction_illegal( void )
*
* This function is used only in test sptests/spcache01.
*/
-RTEMS_INLINE_ROUTINE void _CPU_Instruction_no_operation( void )
+static inline void _CPU_Instruction_no_operation( void )
{
__asm__ volatile ( "nop" );
}
+/**
+ * @brief Uses the thread-local storage area of the context.
+ *
+ * Some architectures may use dedicated registers to reference the thread-local
+ * storage area of the associated thread. This function should set these
+ * registers to the values defined by the specified processor context.
+ *
+ * @param context is the processor context defining the thread-local storage
+ * area to use.
+ */
+static inline void _CPU_Use_thread_local_storage(
+ const Context_Control *context
+)
+{
+ (void) context;
+}
+
+/**
+ * @brief Gets the thread pointer of the context.
+ *
+ * The thread pointer is used to get the address of thread-local storage
+ * objects associated with a thread.
+ *
+ * @param context is the processor context containing the thread pointer.
+ */
+static inline void *_CPU_Get_TLS_thread_pointer(
+ const Context_Control *context
+)
+{
+ (void) context;
+ return NULL;
+}
+
#ifdef __cplusplus
}
#endif