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127 lines
3.8 KiB
127 lines
3.8 KiB
/* |
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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 ZEPHYR_INCLUDE_LINKER_LINKER_TOOL_GCC_H_ |
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#define ZEPHYR_INCLUDE_LINKER_LINKER_TOOL_GCC_H_ |
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#if defined(CONFIG_ARM) |
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#if defined(CONFIG_BIG_ENDIAN) |
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#define OUTPUT_FORMAT_ "elf32-bigarm" |
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#else |
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#define OUTPUT_FORMAT_ "elf32-littlearm" |
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#endif |
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OUTPUT_FORMAT(OUTPUT_FORMAT_) |
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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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OUTPUT_FORMAT("elf32-i386", "elf32-i386", "elf32-i386") |
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OUTPUT_ARCH("i386") |
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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_RISCV) |
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OUTPUT_ARCH("riscv") |
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#ifdef CONFIG_64BIT |
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OUTPUT_FORMAT("elf64-littleriscv") |
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#else |
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OUTPUT_FORMAT("elf32-littleriscv") |
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#endif |
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#elif defined(CONFIG_XTENSA) |
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/* Not needed */ |
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#elif defined(CONFIG_ARCH_POSIX) |
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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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#if defined(CONFIG_ARCH_POSIX) |
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#define GROUP_LINK_IN(where) |
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#else |
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#define GROUP_LINK_IN(where) > where |
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#endif |
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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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#if defined(CONFIG_ARCH_POSIX) |
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#define GROUP_DATA_LINK_IN(vregion, lregion) |
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#else |
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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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#endif /*CONFIG_ARCH_POSIX*/ |
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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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#ifdef CONFIG_ARCH_POSIX |
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#define GROUP_FOLLOWS_AT(where) |
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#else |
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#define GROUP_FOLLOWS_AT(where) AT > where |
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#endif |
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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 COMMON_SYMBOLS *(COMMON) |
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#endif /* ZEPHYR_INCLUDE_LINKER_LINKER_TOOL_GCC_H_ */
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