zephyr/include/linker/kobject-data.ld

76 lines
1.9 KiB
Plaintext
Raw Normal View History

/*
* Copyright (c) 2017,2021 Intel Corporation
*
* SPDX-License-Identifier: Apache-2.0
*/
#ifdef CONFIG_USERSPACE
z_kobject_data_begin = .;
SECTION_DATA_PROLOGUE(kobject_data,,)
{
#if !defined(LINKER_ZEPHYR_PREBUILT) && \
!defined(LINKER_ZEPHYR_FINAL)
#ifdef CONFIG_DYNAMIC_OBJECTS
PROVIDE(_thread_idx_map = .);
. += CONFIG_MAX_THREAD_BYTES;
#endif
#endif /* !LINKER_ZEPHYR_PREBUILT && !LINKER_ZEPHYR_FINAL */
/* During LINKER_KOBJECT_PREBUILT and LINKER_ZEPHYR_PREBUILT,
* space needs to be reserved for the rodata that will be
* produced by gperf during the final stages of linking.
* The alignment and size are produced by
* scripts/gen_kobject_placeholders.py. These are here
* so the addresses to kobjects would remain the same
* during the final stages of linking (LINKER_ZEPHYR_FINAL).
*/
#if defined(LINKER_ZEPHYR_PREBUILT)
#include <linker-kobject-prebuilt-data.h>
#ifdef CONFIG_DYNAMIC_OBJECTS
/* This is produced by gperf. Put a place holder here
* to avoid compilation error.
*/
PROVIDE(_thread_idx_map = .);
#endif
#ifdef KOBJECT_DATA_ALIGN
. = ALIGN(KOBJECT_DATA_ALIGN);
. += KOBJECT_DATA_SZ;
#endif
#endif /* LINKER_ZEPHYR_PREBUILT */
#if defined(LINKER_ZEPHYR_FINAL)
#include <linker-kobject-prebuilt-data.h>
#ifdef KOBJECT_DATA_ALIGN
. = ALIGN(KOBJECT_DATA_ALIGN);
_kobject_data_area_start = .;
#endif
*(".kobject_data.data*")
#ifdef KOBJECT_DATA_ALIGN
_kobject_data_area_end = .;
_kobject_data_area_used = _kobject_data_area_end - _kobject_data_area_start;
ASSERT(_kobject_data_area_used <= KOBJECT_DATA_SZ,
"scripts/gen_kobject_placeholders.py did not reserve enough space \
for kobject data."
);
/* Padding is needed to preserve kobject addresses
* if we have reserved more space than needed.
*/
. = MAX(., _kobject_data_area_start + KOBJECT_DATA_SZ);
#endif /* KOBJECT_DATA_ALIGN */
#endif /* LINKER_ZEPHYR_FINAL */
} GROUP_DATA_LINK_IN(RAMABLE_REGION, ROMABLE_REGION)
#endif /* CONFIG_USERSPACE */