zephyr/arch/arm/core/offsets/offsets.c

101 lines
2.8 KiB
C

/*
* Copyright (c) 2013-2014 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 ARM nano kernel structure member offset definition file
*
* This module is responsible for the generation of the absolute symbols whose
* value represents the member offsets for various ARM nanokernel
* structures.
*
* All of the absolute symbols defined by this module will be present in the
* final microkernel or nanokernel ELF image (due to the linker's reference to
* the _OffsetAbsSyms symbol).
*
* INTERNAL
* It is NOT necessary to define the offset for every member of a structure.
* Typically, only those members that are accessed by assembly language routines
* are defined; however, it doesn't hurt to define all fields for the sake of
* completeness.
*/
#include <gen_offset.h>
#include <nano_private.h>
#include <nano_offsets.h>
/* ARM-specific tNANO structure member offsets */
#if !defined(CONFIG_KERNEL_V2)
GEN_OFFSET_SYM(tNANO, flags);
#endif
#ifdef CONFIG_SYS_POWER_MANAGEMENT
GEN_OFFSET_SYM(tNANO, idle);
#endif
/* ARM-specific struct tcs structure member offsets */
GEN_OFFSET_SYM(tTCS, basepri);
#ifdef CONFIG_THREAD_CUSTOM_DATA
GEN_OFFSET_SYM(tTCS, custom_data);
#endif
#ifdef CONFIG_FLOAT
GEN_OFFSET_SYM(tTCS, preemp_float_regs);
#endif
/* ARM-specific ESF structure member offsets */
GEN_OFFSET_SYM(tESF, a1);
GEN_OFFSET_SYM(tESF, a2);
GEN_OFFSET_SYM(tESF, a3);
GEN_OFFSET_SYM(tESF, a4);
GEN_OFFSET_SYM(tESF, ip);
GEN_OFFSET_SYM(tESF, lr);
GEN_OFFSET_SYM(tESF, pc);
GEN_OFFSET_SYM(tESF, xpsr);
#ifdef CONFIG_FLOAT
GEN_OFFSET_SYM(tESF, s);
GEN_OFFSET_SYM(tESF, fpscr);
#endif
/* size of the entire tESF structure */
GEN_ABSOLUTE_SYM(__tESF_SIZEOF, sizeof(tESF));
/* ARM-specific preempt registers structure member offsets */
GEN_OFFSET_SYM(tPreempt, v1);
GEN_OFFSET_SYM(tPreempt, v2);
GEN_OFFSET_SYM(tPreempt, v3);
GEN_OFFSET_SYM(tPreempt, v4);
GEN_OFFSET_SYM(tPreempt, v5);
GEN_OFFSET_SYM(tPreempt, v6);
GEN_OFFSET_SYM(tPreempt, v7);
GEN_OFFSET_SYM(tPreempt, v8);
GEN_OFFSET_SYM(tPreempt, psp);
/* size of the entire preempt registers structure */
GEN_ABSOLUTE_SYM(__tPreempt_SIZEOF, sizeof(tPreempt));
/* size of the struct tcs structure sans save area for floating point regs */
GEN_ABSOLUTE_SYM(__tTCS_NOFLOAT_SIZEOF, sizeof(tTCS));
GEN_ABS_SYM_END