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zephyr/include/linker/linker-defs.h
Andrew Boie 41f6011c36 userspace: remove APPLICATION_MEMORY feature 
This was never a long-term solution, more of a gross hack
to get test cases working until we could figure out a good
end-to-end solution for memory domains that generated
appropriate linker sections. Now that we have this with
the app shared memory feature, and have converted all tests
to remove it, delete this feature.

To date all userspace APIs have been tagged as 'experimental'
which sidesteps deprecation policies.

Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2019-02-08 07:04:30 -05:00

242 lines
6.7 KiB
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/*
* Copyright (c) 2013-2014, Wind River Systems, Inc.
*
* SPDX-License-Identifier: Apache-2.0
*/
/*
* DESCRIPTION
* Platform independent, commonly used macros and defines related to linker
* script.
*
* This file may be included by:
* - Linker script files: for linker section declarations
* - C files: for external declaration of address or size of linker section
* - Assembly files: for external declaration of address or size of linker
* section
*/
#ifndef ZEPHYR_INCLUDE_LINKER_LINKER_DEFS_H_
#define ZEPHYR_INCLUDE_LINKER_LINKER_DEFS_H_
#include <toolchain.h>
#include <linker/sections.h>
#include <misc/util.h>
#include <offsets.h>
#ifdef _LINKER
/*
* Space for storing per device busy bitmap. Since we do not know beforehand
* the number of devices, we go through the below mechanism to allocate the
* required space.
*/
#ifdef CONFIG_DEVICE_POWER_MANAGEMENT
#define DEVICE_COUNT \
((__device_init_end - __device_init_start) / _DEVICE_STRUCT_SIZEOF)
#define DEV_BUSY_SZ (((DEVICE_COUNT + 31) / 32) * 4)
#define DEVICE_BUSY_BITFIELD() \
FILL(0x00) ; \
__device_busy_start = .; \
. = . + DEV_BUSY_SZ; \
__device_busy_end = .;
#else
#define DEVICE_BUSY_BITFIELD()
#endif
/*
* generate a symbol to mark the start of the device initialization objects for
* the specified level, then link all of those objects (sorted by priority);
* ensure the objects aren't discarded if there is no direct reference to them
*/
#define DEVICE_INIT_LEVEL(level) \
__device_##level##_start = .; \
KEEP(*(SORT(.init_##level[0-9]))); \
KEEP(*(SORT(.init_##level[1-9][0-9]))); \
/*
* link in device initialization objects for all devices that are automatically
* initialized by the kernel; the objects are sorted in the order they will be
* initialized (i.e. ordered by level, sorted by priority within a level)
*/
#define DEVICE_INIT_SECTIONS() \
__device_init_start = .; \
DEVICE_INIT_LEVEL(PRE_KERNEL_1) \
DEVICE_INIT_LEVEL(PRE_KERNEL_2) \
DEVICE_INIT_LEVEL(POST_KERNEL) \
DEVICE_INIT_LEVEL(APPLICATION) \
__device_init_end = .; \
DEVICE_BUSY_BITFIELD() \
/* define a section for undefined device initialization levels */
#define DEVICE_INIT_UNDEFINED_SECTION() \
KEEP(*(SORT(.init_[_A-Z0-9]*))) \
/*
* link in shell initialization objects for all modules that use shell and
* their shell commands are automatically initialized by the kernel.
*/
#define SHELL_INIT_SECTIONS() \
__shell_module_start = .; \
KEEP(*(".shell_module_*")); \
__shell_module_end = .; \
__shell_cmd_start = .; \
KEEP(*(".shell_cmd_*")); \
__shell_cmd_end = .; \
/*
* link in shell initialization objects for all modules that use shell and
* their shell commands are automatically initialized by the kernel.
*/
#define APP_SMEM_SECTION() KEEP(*(SORT("data_smem_*")))
#ifdef CONFIG_X86 /* LINKER FILES: defines used by linker script */
/* Should be moved to linker-common-defs.h */
#if defined(CONFIG_XIP)
#define ROMABLE_REGION ROM
#else
#define ROMABLE_REGION RAM
#endif
#endif
/*
* If image is loaded via kexec Linux system call, then program
* headers need to be page aligned.
* This can be done by section page aligning.
*/
#ifdef CONFIG_BOOTLOADER_KEXEC
#define KEXEC_PGALIGN_PAD(x) . = ALIGN(x);
#else
#define KEXEC_PGALIGN_PAD(x)
#endif
#elif defined(_ASMLANGUAGE)
/* Assembly FILES: declaration defined by the linker script */
GDATA(__bss_start)
GDATA(__bss_num_words)
#ifdef CONFIG_XIP
GDATA(__data_rom_start)
GDATA(__data_ram_start)
GDATA(__data_num_words)
#endif
#else /* ! _ASMLANGUAGE */
#include <zephyr/types.h>
/*
* Memory owned by the kernel, to be used as shared memory between
* application threads.
*
* The following are extern symbols from the linker. This enables
* the dynamic k_mem_domain and k_mem_partition creation and alignment
* to the section produced in the linker.
* The policy for this memory will be to initially configure all of it as
* kernel / supervisor thread accessible.
*/
extern char _app_smem_start[];
extern char _app_smem_end[];
extern char _app_smem_size[];
extern char _app_smem_rom_start[];
extern char _app_smem_num_words[];
/* Memory owned by the kernel. Start and end will be aligned for memory
* management/protection hardware for the target architecture.
*
* Consists of all kernel-side globals, all kernel objects, all thread stacks,
* and all currently unused RAM.
*
* Except for the stack of the currently executing thread, none of this memory
* is normally accessible to user threads unless specifically granted at
* runtime.
*/
extern char __kernel_ram_start[];
extern char __kernel_ram_end[];
extern char __kernel_ram_size[];
/* Used by _bss_zero or arch-specific implementation */
extern char __bss_start[];
extern char __bss_end[];
/* Used by _data_copy() or arch-specific implementation */
#ifdef CONFIG_XIP
extern char __data_rom_start[];
extern char __data_ram_start[];
extern char __data_ram_end[];
#endif /* CONFIG_XIP */
/* Includes text and rodata */
extern char _image_rom_start[];
extern char _image_rom_end[];
extern char _image_rom_size[];
/* Includes all ROMable data, i.e. the size of the output image file. */
extern char _flash_used[];
/* datas, bss, noinit */
extern char _image_ram_start[];
extern char _image_ram_end[];
extern char _image_text_start[];
extern char _image_text_end[];
extern char _image_rodata_start[];
extern char _image_rodata_end[];
extern char _vector_start[];
extern char _vector_end[];
#ifdef CONFIG_COVERAGE_GCOV
extern char __gcov_bss_start[];
extern char __gcov_bss_end[];
extern char __gcov_bss_size[];
#endif /* CONFIG_COVERAGE_GCOV */
/* end address of image, used by newlib for the heap */
extern char _end[];
#ifdef CONFIG_CCM_BASE_ADDRESS
extern char __ccm_data_rom_start[];
extern char __ccm_start[];
extern char __ccm_data_start[];
extern char __ccm_data_end[];
extern char __ccm_bss_start[];
extern char __ccm_bss_end[];
extern char __ccm_noinit_start[];
extern char __ccm_noinit_end[];
extern char __ccm_end[];
#endif /* CONFIG_CCM_BASE_ADDRESS */
/* Used by the Security Attribution Unit to configure the
* Non-Secure Callable region.
*/
#ifdef CONFIG_ARM_FIRMWARE_HAS_SECURE_ENTRY_FUNCS
extern char __sg_start[];
extern char __sg_end[];
extern char __sg_size[];
#endif /* CONFIG_ARM_FIRMWARE_HAS_SECURE_ENTRY_FUNCS */
/*
* Non-cached kernel memory region, currently only available on ARM Cortex-M7
* with a MPU. Start and end will be aligned for memory management/protection
* hardware for the target architecture.
*
* All the functions with '__nocache' keyword will be placed into this
* section.
*/
#ifdef CONFIG_NOCACHE_MEMORY
extern char _nocache_ram_start[];
extern char _nocache_ram_end[];
extern char _nocache_ram_size[];
#endif /* CONFIG_NOCACHE_MEMORY */
#endif /* ! _ASMLANGUAGE */
#endif /* ZEPHYR_INCLUDE_LINKER_LINKER_DEFS_H_ */
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