204 lines
6.0 KiB
C
204 lines
6.0 KiB
C
/*
|
|
* Copyright (c) 2013-2014, Wind River Systems, Inc.
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*/
|
|
|
|
/**
|
|
* @file
|
|
* @brief GCC toolchain linker defs
|
|
*
|
|
* This header file defines the necessary macros used by the linker script for
|
|
* use with the GCC linker.
|
|
*/
|
|
|
|
#ifndef ZEPHYR_INCLUDE_LINKER_LINKER_TOOL_GCC_H_
|
|
#define ZEPHYR_INCLUDE_LINKER_LINKER_TOOL_GCC_H_
|
|
|
|
#include <sys/mem_manage.h>
|
|
|
|
#if defined(CONFIG_ARM)
|
|
#if defined(CONFIG_BIG_ENDIAN)
|
|
#define OUTPUT_FORMAT_ "elf32-bigarm"
|
|
#else
|
|
#define OUTPUT_FORMAT_ "elf32-littlearm"
|
|
#endif
|
|
OUTPUT_FORMAT(OUTPUT_FORMAT_)
|
|
#elif defined(CONFIG_ARM64)
|
|
OUTPUT_FORMAT("elf64-littleaarch64")
|
|
#elif defined(CONFIG_ARC)
|
|
OUTPUT_FORMAT("elf32-littlearc", "elf32-bigarc", "elf32-littlearc")
|
|
#elif defined(CONFIG_X86)
|
|
#if defined(CONFIG_X86_64)
|
|
OUTPUT_FORMAT("elf64-x86-64")
|
|
OUTPUT_ARCH("i386:x86-64")
|
|
#else
|
|
OUTPUT_FORMAT("elf32-i386", "elf32-i386", "elf32-i386")
|
|
OUTPUT_ARCH("i386")
|
|
#endif
|
|
#elif defined(CONFIG_NIOS2)
|
|
OUTPUT_FORMAT("elf32-littlenios2", "elf32-bignios2", "elf32-littlenios2")
|
|
#elif defined(CONFIG_RISCV)
|
|
OUTPUT_ARCH("riscv")
|
|
#ifdef CONFIG_64BIT
|
|
OUTPUT_FORMAT("elf64-littleriscv")
|
|
#else
|
|
OUTPUT_FORMAT("elf32-littleriscv")
|
|
#endif
|
|
#elif defined(CONFIG_XTENSA)
|
|
/* Not needed */
|
|
#elif defined(CONFIG_ARCH_POSIX)
|
|
/* Not needed */
|
|
#elif defined(CONFIG_SPARC)
|
|
OUTPUT_FORMAT("elf32-sparc")
|
|
#else
|
|
#error Arch not supported.
|
|
#endif
|
|
|
|
/*
|
|
* The GROUP_START() and GROUP_END() macros are used to define a group
|
|
* of sections located in one memory area, such as RAM, ROM, etc.
|
|
* The <where> parameter is the name of the memory area.
|
|
*/
|
|
#define GROUP_START(where)
|
|
#define GROUP_END(where)
|
|
|
|
/**
|
|
* @def GROUP_LINK_IN
|
|
*
|
|
* Route memory to a specified memory area
|
|
*
|
|
* The GROUP_LINK_IN() macro is located at the end of the section
|
|
* description and tells the linker that this section is located in
|
|
* the memory area specified by 'where' argument.
|
|
*
|
|
* This macro is intentionally undefined for CONFIG_MMU systems when
|
|
* CONFIG_KERNEL_VM_BASE is not the same as CONFIG_SRAM_BASE_ADDRESS,
|
|
* as both the LMA and VMA destinations must be known for all sections
|
|
* as this corresponds to physical vs. virtual location.
|
|
*
|
|
* @param where Destination memory area
|
|
*/
|
|
#if defined(CONFIG_ARCH_POSIX)
|
|
#define GROUP_LINK_IN(where)
|
|
#elif !defined(Z_VM_KERNEL)
|
|
#define GROUP_LINK_IN(where) > where
|
|
#endif
|
|
|
|
/**
|
|
* @def GROUP_ROM_LINK_IN
|
|
*
|
|
* Route memory for a read-only section
|
|
*
|
|
* The GROUP_ROM_LINK_IN() macro is located at the end of the section
|
|
* description and tells the linker that this a read-only section
|
|
* that is physically placed at the 'lregion` argument.
|
|
*
|
|
* If CONFIG_XIP is active, the 'lregion' area is flash memory.
|
|
*
|
|
* If CONFIG_MMU is active, the vregion argument will be used to
|
|
* determine where this is located in the virtual memory map, otherwise
|
|
* it is ignored.
|
|
*
|
|
* @param vregion Output VMA (only used if CONFIG_MMU where LMA != VMA)
|
|
* @param lregion Output LMA
|
|
*/
|
|
#if defined(CONFIG_ARCH_POSIX)
|
|
#define GROUP_ROM_LINK_IN(vregion, lregion)
|
|
#elif defined(Z_VM_KERNEL)
|
|
#define GROUP_ROM_LINK_IN(vregion, lregion) > vregion AT > lregion
|
|
#else
|
|
#define GROUP_ROM_LINK_IN(vregion, lregion) > lregion
|
|
#endif
|
|
|
|
/**
|
|
* @def GROUP_DATA_LINK_IN
|
|
*
|
|
* Route memory for read-write sections that are loaded.
|
|
*
|
|
* Used for initialized data sections that on XIP platforms must be copied at
|
|
* startup.
|
|
*
|
|
* @param vregion Output VMA
|
|
* @param lregion Output LMA (only used if CONFIG_MMU if VMA != LMA,
|
|
* or CONFIG_XIP)
|
|
*/
|
|
#if defined(CONFIG_ARCH_POSIX)
|
|
#define GROUP_DATA_LINK_IN(vregion, lregion)
|
|
#elif defined(CONFIG_XIP) || defined(Z_VM_KERNEL)
|
|
#define GROUP_DATA_LINK_IN(vregion, lregion) > vregion AT > lregion
|
|
#else
|
|
#define GROUP_DATA_LINK_IN(vregion, lregion) > vregion
|
|
#endif
|
|
|
|
/**
|
|
* @def GROUP_NOLOAD_LINK_IN
|
|
*
|
|
* Route memory for read-write sections that are NOT loaded; typically this
|
|
* is only used for 'BSS' and 'noinit'.
|
|
*
|
|
* @param vregion Output VMA
|
|
* @param lregion Output LMA (only used if CONFIG_MMU if VMA != LMA,
|
|
* corresponds to physical location)
|
|
*/
|
|
#if defined(CONFIG_ARCH_POSIX)
|
|
#define GROUP_NOLOAD_LINK_IN(vregion, lregion)
|
|
#elif defined(Z_VM_KERNEL)
|
|
#define GROUP_NOLOAD_LINK_IN(vregion, lregion) > vregion AT > lregion
|
|
#elif defined(CONFIG_XIP)
|
|
#define GROUP_NOLOAD_LINK_IN(vregion, lregion) > vregion AT > vregion
|
|
#else
|
|
#define GROUP_NOLOAD_LINK_IN(vregion, lregion) > vregion
|
|
#endif
|
|
|
|
/**
|
|
* @def SECTION_PROLOGUE
|
|
*
|
|
* The SECTION_PROLOGUE() macro is used to define the beginning of a section.
|
|
*
|
|
* On MMU systems where VMA != LMA there is an implicit ALIGN_WITH_INPUT
|
|
* specified.
|
|
*
|
|
* @param name Name of the output sectio
|
|
* @param options Section options, such as (NOLOAD), or left blank
|
|
* @param align Alignment directives, such as SUBALIGN(). ALIGN() itself is
|
|
* not allowed. May be blank.
|
|
*/
|
|
#ifdef Z_VM_KERNEL
|
|
/* If we have a virtual memory map we need ALIGN_WITH_INPUT in all sections */
|
|
#define SECTION_PROLOGUE(name, options, align) \
|
|
name options : ALIGN_WITH_INPUT align
|
|
#else
|
|
#define SECTION_PROLOGUE(name, options, align) \
|
|
name options : align
|
|
#endif
|
|
|
|
/**
|
|
* @def SECTION_DATA_PROLOGUE
|
|
*
|
|
* Same as for SECTION_PROLOGUE(), except that this one must be used
|
|
* for data sections which on XIP platforms will have differing
|
|
* virtual and load addresses (i.e. they'll be copied into RAM at
|
|
* program startup). Such a section must also use
|
|
* GROUP_DATA_LINK_IN to specify the correct output load address.
|
|
*
|
|
* This is equivalent to SECTION_PROLOGUE() on non-XIP systems.
|
|
* On XIP systems there is an implicit ALIGN_WITH_INPUT specified.
|
|
*
|
|
* @param name Name of the output sectio
|
|
* @param options Section options, or left blank
|
|
* @param align Alignment directives, such as SUBALIGN(). ALIGN() itself is
|
|
* not allowed. May be blank.
|
|
*/
|
|
#if defined(CONFIG_XIP)
|
|
#define SECTION_DATA_PROLOGUE(name, options, align) \
|
|
name options : ALIGN_WITH_INPUT align
|
|
#else
|
|
#define SECTION_DATA_PROLOGUE(name, options, align) \
|
|
SECTION_PROLOGUE(name, options, align)
|
|
#endif
|
|
|
|
#define COMMON_SYMBOLS *(COMMON)
|
|
|
|
#endif /* ZEPHYR_INCLUDE_LINKER_LINKER_TOOL_GCC_H_ */
|