zephyr/include/linker/sections.h
Erwin Rol 581446d8cd linker: arm: add stm32 ccm sections
The STM32 has special Core Coupled Memory, ccm for short, that can
only be accessed through the CPU and can not be use for DMA.

The following 3 sections have been added.
- ccm_bss for zero initialized data
- ccm_data for initialized data
- ccm_noinit for uninitialized data

Signed-off-by: Erwin Rol <erwin@erwinrol.com>
2018-02-13 12:36:22 -06:00

64 lines
1.5 KiB
C

/*
* Copyright (c) 2013-2014, Wind River Systems, Inc.
*
* SPDX-License-Identifier: Apache-2.0
*/
/**
* @file
* @brief Definitions of various linker Sections.
*
* Linker Section declarations used by linker script, C files and Assembly
* files.
*/
#ifndef _SECTIONS_H
#define _SECTIONS_H
#define _TEXT_SECTION_NAME text
#define _RODATA_SECTION_NAME rodata
#define _CTOR_SECTION_NAME ctors
/* Linker issue with XIP where the name "data" cannot be used */
#define _DATA_SECTION_NAME datas
#define _BSS_SECTION_NAME bss
#define _NOINIT_SECTION_NAME noinit
#define _APP_DATA_SECTION_NAME app_datas
#define _APP_BSS_SECTION_NAME app_bss
#define _APP_NOINIT_SECTION_NAME app_noinit
#define _UNDEFINED_SECTION_NAME undefined
/* Various text section names */
#define TEXT text
#if defined(CONFIG_X86)
#define TEXT_START text_start /* beginning of TEXT section */
#else
#define TEXT_START text /* beginning of TEXT section */
#endif
/* Various data type section names */
#define BSS bss
#define RODATA rodata
#define DATA data
#define NOINIT noinit
/* Interrupts */
#define IRQ_VECTOR_TABLE .gnu.linkonce.irq_vector_table
#define SW_ISR_TABLE .gnu.linkonce.sw_isr_table
/* Architecture-specific sections */
#if defined(CONFIG_ARM)
#define KINETIS_FLASH_CONFIG kinetis_flash_config
#define TI_CCFG .ti_ccfg
#define _CCM_DATA_SECTION_NAME ccm_data
#define _CCM_BSS_SECTION_NAME ccm_bss
#define _CCM_NOINIT_SECTION_NAME ccm_noinit
#endif
#include <linker/section_tags.h>
#endif /* _SECTIONS_H */