zephyr/arch/arm/include/kernel_arch_func.h

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kernel/arch: consolidate tTCS and TNANO definitions There was a lot of duplication between architectures for the definition of threads and the "nanokernel" guts. These have been consolidated. Now, a common file kernel/unified/include/kernel_structs.h holds the common definitions. Architectures provide two files to complement it: kernel_arch_data.h and kernel_arch_func.h. The first one contains at least the struct _thread_arch and struct _kernel_arch data structures, as well as the struct _callee_saved and struct _caller_saved register layouts. The second file contains anything that needs what is provided by the common stuff in kernel_structs.h. Those two files are only meant to be included in kernel_structs.h in very specific locations. The thread data structure has been separated into three major parts: common struct _thread_base and struct k_thread, and arch-specific struct _thread_arch. The first and third ones are included in the second. The struct s_NANO data structure has been split into two: common struct _kernel and arch-specific struct _kernel_arch. The latter is included in the former. Offsets files have also changed: nano_offsets.h has been renamed kernel_offsets.h and is still included by the arch-specific offsets.c. Also, since the thread and kernel data structures are now made of sub-structures, offsets have to be added to make up the full offset. Some of these additions have been consolidated in shorter symbols, available from kernel/unified/include/offsets_short.h, which includes an arch-specific offsets_arch_short.h. Most of the code include offsets_short.h now instead of offsets.h. Change-Id: I084645cb7e6db8db69aeaaf162963fe157045d5a Signed-off-by: Benjamin Walsh <benjamin.walsh@windriver.com>
2016-11-08 23:36:50 +08:00
/*
* Copyright (c) 2013-2016 Wind River Systems, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* @file
* @brief Private kernel definitions (ARM)
*
* This file contains private kernel function definitions and various
* other definitions for the ARM Cortex-M3 processor architecture.
*
* This file is also included by assembly language files which must #define
* _ASMLANGUAGE before including this header file. Note that kernel
* assembly source files obtains structure offset values via "absolute symbols"
* in the offsets.o module.
*/
/* this file is only meant to be included by kernel_structs.h */
#ifndef _kernel_arch_func__h_
#define _kernel_arch_func__h_
#ifdef __cplusplus
extern "C" {
#endif
#ifndef _ASMLANGUAGE
extern void _FaultInit(void);
extern void _CpuIdleInit(void);
static ALWAYS_INLINE void nanoArchInit(void)
{
_InterruptStackSetup();
_ExcSetup();
_FaultInit();
_CpuIdleInit();
}
/**
*
* @brief Set the return value for the specified fiber (inline)
*
* The register used to store the return value from a function call invocation
* to <value>. It is assumed that the specified <fiber> is pending, and thus
* the fiber's thread is stored in its struct tcs structure.
*
* @param fiber pointer to the fiber
* @param value is the value to set as a return value
*
* @return N/A
*/
static ALWAYS_INLINE void
_set_thread_return_value(struct k_thread *thread, unsigned int value)
{
struct __esf *esf = (struct __esf *)thread->callee_saved.psp;
esf->a1 = value;
}
extern void nano_cpu_atomic_idle(unsigned int);
#define _is_in_isr() _IsInIsr()
extern void _IntLibInit(void);
#endif /* _ASMLANGUAGE */
#ifdef __cplusplus
}
#endif
#endif /* _kernel_arch_func__h_ */