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

86 lines
2.6 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 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 kernel structures.
*
* All of the absolute symbols defined by this module will be present in the
* final kernel 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 <kernel_structs.h>
#include <kernel_offsets.h>
GEN_OFFSET_SYM(_thread_arch_t, basepri);
GEN_OFFSET_SYM(_thread_arch_t, swap_return_value);
#ifdef CONFIG_FLOAT
GEN_OFFSET_SYM(_thread_arch_t, preempt_float);
#endif
GEN_OFFSET_SYM(_esf_t, a1);
GEN_OFFSET_SYM(_esf_t, a2);
GEN_OFFSET_SYM(_esf_t, a3);
GEN_OFFSET_SYM(_esf_t, a4);
GEN_OFFSET_SYM(_esf_t, ip);
GEN_OFFSET_SYM(_esf_t, lr);
GEN_OFFSET_SYM(_esf_t, pc);
GEN_OFFSET_SYM(_esf_t, xpsr);
#ifdef CONFIG_FLOAT
GEN_OFFSET_SYM(_esf_t, s);
GEN_OFFSET_SYM(_esf_t, fpscr);
#endif
GEN_ABSOLUTE_SYM(___esf_t_SIZEOF, sizeof(_esf_t));
GEN_OFFSET_SYM(_callee_saved_t, v1);
GEN_OFFSET_SYM(_callee_saved_t, v2);
GEN_OFFSET_SYM(_callee_saved_t, v3);
GEN_OFFSET_SYM(_callee_saved_t, v4);
GEN_OFFSET_SYM(_callee_saved_t, v5);
GEN_OFFSET_SYM(_callee_saved_t, v6);
GEN_OFFSET_SYM(_callee_saved_t, v7);
GEN_OFFSET_SYM(_callee_saved_t, v8);
GEN_OFFSET_SYM(_callee_saved_t, psp);
/* size of the entire preempt registers structure */
GEN_ABSOLUTE_SYM(___callee_saved_t_SIZEOF, sizeof(struct _callee_saved));
/* size of the struct tcs structure sans save area for floating point regs */
#ifdef CONFIG_FLOAT
GEN_ABSOLUTE_SYM(_K_THREAD_NO_FLOAT_SIZEOF, sizeof(struct k_thread) -
sizeof(struct _preempt_float));
#else
GEN_ABSOLUTE_SYM(_K_THREAD_NO_FLOAT_SIZEOF, sizeof(struct k_thread));
#endif
GEN_ABS_SYM_END