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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 | /* * 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 __LINKER_TOOL_GCC_H #define __LINKER_TOOL_GCC_H #if defined(CONFIG_ARM) OUTPUT_FORMAT("elf32-littlearm", "elf32-bigarm", "elf32-littlearm") #elif defined(CONFIG_ARC) OUTPUT_FORMAT("elf32-littlearc", "elf32-bigarc", "elf32-littlearc") #elif defined(CONFIG_X86) #if defined(__IAMCU) OUTPUT_FORMAT("elf32-iamcu") OUTPUT_ARCH(iamcu:intel) #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_RISCV32) OUTPUT_ARCH(riscv) OUTPUT_FORMAT("elf32-littleriscv") #elif defined(CONFIG_XTENSA) /* Not needed */ #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) /* * 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. */ #define GROUP_LINK_IN(where) > where /* * As GROUP_LINK_IN(), but takes a second argument indicating the * memory region (e.g. "ROM") for the load address. Used for * initialized data sections that on XIP platforms must be copied at * startup. * * And, because output directives in GNU ld are "sticky", this must * also be used on the first section *after* such an initialized data * section, specifying the same memory region (e.g. "RAM") for both * vregion and lregion. */ #ifdef CONFIG_XIP #define GROUP_DATA_LINK_IN(vregion, lregion) > vregion AT> lregion #else #define GROUP_DATA_LINK_IN(vregion, lregion) > vregion #endif /* * The GROUP_FOLLOWS_AT() macro is located at the end of the section * and indicates that the section does not specify an address at which * it is to be loaded, but that it follows a section which did specify * such an address */ #define GROUP_FOLLOWS_AT(where) AT > where /* * The SECTION_PROLOGUE() macro is used to define the beginning of a section. * The <name> parameter is the name of the section, and the <option> parameter * is to include any special options such as (NOLOAD). Page alignment has its * own parameter since it needs abstraction across the different toolchains. * If not required, the <options> and <align> parameters should be left blank. */ #define SECTION_PROLOGUE(name, options, align) name options : align /* * 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_LINK_IN_LMA to specify the correct output load address. */ #ifdef CONFIG_XIP #define SECTION_DATA_PROLOGUE(name, options, align) \ name options : ALIGN_WITH_INPUT align #else #define SECTION_DATA_PROLOGUE(name, options, align) name options : align #endif #define SORT_BY_NAME(x) SORT(x) #define OPTIONAL #define COMMON_SYMBOLS *(COMMON) #endif /* !__LINKER_TOOL_GCC_H */ |