56 lines
1.7 KiB
C
56 lines
1.7 KiB
C
/*
|
|
* Copyright (c) 2013-2014 Wind River Systems, Inc.
|
|
* Copyright (c) 2016 Cadence Design Systems, Inc.
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*/
|
|
|
|
/**
|
|
* @file
|
|
* @brief Xtensa 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 Xtensa kernel
|
|
* structures.
|
|
*
|
|
* All of the absolute symbols defined by this module will be present in the
|
|
* final kernel or 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 <kernel.h>
|
|
#include <kernel_arch_data.h>
|
|
#include <gen_offset.h>
|
|
#include <kernel_offsets.h>
|
|
|
|
/* Xtensa-specific k_thread structure member offsets */
|
|
GEN_OFFSET_SYM(_callee_saved_t, topOfStack);
|
|
GEN_OFFSET_SYM(_callee_saved_t, retval);
|
|
|
|
GEN_OFFSET_SYM(_thread_arch_t, preempCoprocReg);
|
|
#if XCHAL_CP_NUM > 0
|
|
GEN_OFFSET_SYM(tPreempCoprocReg, cpStack);
|
|
#endif
|
|
|
|
/* Xtensa-specific _thread_arch_t structure member offsets */
|
|
GEN_OFFSET_SYM(_thread_arch_t, flags);
|
|
|
|
/* Xtensa-specific ESF structure member offsets */
|
|
GEN_OFFSET_SYM(__esf_t, sp);
|
|
GEN_OFFSET_SYM(__esf_t, pc);
|
|
|
|
/* size of the entire __esf_t structure */
|
|
GEN_ABSOLUTE_SYM(____esf_t_SIZEOF, sizeof(__esf_t));
|
|
|
|
/* size of the struct k_thread structure without save area for coproc regs */
|
|
GEN_ABSOLUTE_SYM(_K_THREAD_NO_FLOAT_SIZEOF,
|
|
sizeof(struct k_thread) - sizeof(tCoopCoprocReg) -
|
|
sizeof(tPreempCoprocReg) + XT_CP_DESCR_SIZE);
|
|
|
|
GEN_ABS_SYM_END
|