111 lines
3.4 KiB
C
111 lines
3.4 KiB
C
/*
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* Copyright (c) 2013-2014, Wind River Systems, Inc.
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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/**
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* @file
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* @brief GCC toolchain linker defs
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*
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* This header file defines the necessary macros used by the linker script for
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* use with the GCC linker.
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*/
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#ifndef __LINKER_TOOL_GCC_H
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#define __LINKER_TOOL_GCC_H
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#if defined(CONFIG_ARM)
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OUTPUT_FORMAT("elf32-littlearm", "elf32-bigarm", "elf32-littlearm")
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#elif defined(CONFIG_ARC)
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OUTPUT_FORMAT("elf32-littlearc", "elf32-bigarc", "elf32-littlearc")
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#elif defined(CONFIG_X86)
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#if defined(__IAMCU)
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OUTPUT_FORMAT("elf32-iamcu")
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OUTPUT_ARCH(iamcu:intel)
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#else
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OUTPUT_FORMAT("elf32-i386", "elf32-i386", "elf32-i386")
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OUTPUT_ARCH(i386)
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#endif
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#elif defined(CONFIG_NIOS2)
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OUTPUT_FORMAT("elf32-littlenios2", "elf32-bignios2", "elf32-littlenios2")
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#elif defined(CONFIG_RISCV32)
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OUTPUT_ARCH(riscv)
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OUTPUT_FORMAT("elf32-littleriscv")
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#elif defined(CONFIG_XTENSA)
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/* Not needed */
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#else
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#error Arch not supported.
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#endif
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/*
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* The GROUP_START() and GROUP_END() macros are used to define a group
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* of sections located in one memory area, such as RAM, ROM, etc.
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* The <where> parameter is the name of the memory area.
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*/
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#define GROUP_START(where)
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#define GROUP_END(where)
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/*
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* The GROUP_LINK_IN() macro is located at the end of the section
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* description and tells the linker that this section is located in
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* the memory area specified by <where> argument.
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*/
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#define GROUP_LINK_IN(where) > where
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/*
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* As GROUP_LINK_IN(), but takes a second argument indicating the
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* memory region (e.g. "ROM") for the load address. Used for
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* initialized data sections that on XIP platforms must be copied at
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* startup.
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*
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* And, because output directives in GNU ld are "sticky", this must
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* also be used on the first section *after* such an initialized data
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* section, specifying the same memory region (e.g. "RAM") for both
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* vregion and lregion.
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*/
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#ifdef CONFIG_XIP
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#define GROUP_DATA_LINK_IN(vregion, lregion) > vregion AT> lregion
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#else
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#define GROUP_DATA_LINK_IN(vregion, lregion) > vregion
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#endif
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/*
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* The GROUP_FOLLOWS_AT() macro is located at the end of the section
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* and indicates that the section does not specify an address at which
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* it is to be loaded, but that it follows a section which did specify
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* such an address
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*/
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#define GROUP_FOLLOWS_AT(where) AT > where
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/*
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* The SECTION_PROLOGUE() macro is used to define the beginning of a section.
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* The <name> parameter is the name of the section, and the <option> parameter
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* is to include any special options such as (NOLOAD). Page alignment has its
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* own parameter since it needs abstraction across the different toolchains.
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* If not required, the <options> and <align> parameters should be left blank.
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*/
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#define SECTION_PROLOGUE(name, options, align) name options : align
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/*
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* As for SECTION_PROLOGUE(), except that this one must (!) be used
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* for data sections which on XIP platforms will have differing
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* virtual and load addresses (i.e. they'll be copied into RAM at
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* program startup). Such a section must (!) also use
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* GROUP_LINK_IN_LMA to specify the correct output load address.
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*/
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#ifdef CONFIG_XIP
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#define SECTION_DATA_PROLOGUE(name, options, align) \
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name options : ALIGN_WITH_INPUT align
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#else
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#define SECTION_DATA_PROLOGUE(name, options, align) name options : align
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#endif
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#define SORT_BY_NAME(x) SORT(x)
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#define OPTIONAL
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#define COMMON_SYMBOLS *(COMMON)
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#endif /* !__LINKER_TOOL_GCC_H */
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