1 /* SPDX-License-Identifier: GPL-2.0+ */ 2 /* 3 * (C) Copyright 2007 Tensilica, Inc. 4 * (C) Copyright 2014 - 2016 Cadence Design Systems Inc. 5 */ 6 7 #ifndef _XTENSA_LDSCRIPT_H 8 #define _XTENSA_LDSCRIPT_H 9 10 /* 11 * This linker script is pre-processed with CPP to avoid hard-coding 12 * addresses that depend on the Xtensa core configuration, because 13 * this FPGA board can be used with a huge variety of Xtensa cores. 14 */ 15 16 #include <asm/arch/core.h> 17 #include <asm/addrspace.h> 18 19 #define ALIGN_LMA 4 20 #define LMA_EQ_VMA 21 #define FORCE_OUTPUT . = . 22 #define FOLLOWING(sec) \ 23 AT(((LOADADDR(sec) + SIZEOF(sec) + ALIGN_LMA-1)) & ~(ALIGN_LMA-1)) 24 25 /* 26 * Specify an output section that will be added to the ROM store table 27 * (PACKED_SECTION) or one that will be resident in ROM (RESIDENT_SECTION). 28 * 'symname' is a base name for section boundary symbols *_start & *_end. 29 * 'lma' is the load address at which a section will be packed in ROM. 30 * 'region' is the basename identifying a memory region and program header. 31 * 'keep' prevents removal of empty sections (must be 'KEEP' or 'NOKEEP'). 32 */ 33 34 #define RELOCATE1(_sec_) \ 35 LONG(_##_sec_##_start); \ 36 LONG(_##_sec_##_end); \ 37 LONG(LOADADDR(.##_sec_)); 38 39 #define RELOCATE2(_sym_, _sec_) \ 40 LONG(_##_sym_##_##_sec_##_start); \ 41 LONG(_##_sym_##_##_sec_##_end); \ 42 LONG(LOADADDR(.##_sym_##.##_sec_)); 43 44 #define SECTION_VECTOR(_sym_, _sec_, _vma_, _lma_) \ 45 .##_sym_##.##_sec_ _vma_ : _lma_ \ 46 { \ 47 . = ALIGN(4); \ 48 _##_sym_##_##_sec_##_start = ABSOLUTE(.); \ 49 KEEP(*(.##_sym_##.##_sec_)) \ 50 _##_sym_##_##_sec_##_end = ABSOLUTE(.); \ 51 } 52 53 /* In MMU configs there are two aliases of SYSROM, cached and uncached. 54 * For various reasons it is simpler to use the uncached mapping for load 55 * addresses, so ROM sections end up contiguous with the reset vector and 56 * we get a compact binary image. However we can gain performance by doing 57 * the unpacking from the cached ROM mapping. So we adjust all the load 58 * addresses in the ROM store table with an offset to the cached mapping, 59 * including the symbols referring to the ROM store table itself. 60 */ 61 62 #define SECTION_ResetVector(_vma_, _lma_) \ 63 .ResetVector.text _vma_ : _lma_ \ 64 { \ 65 FORCE_OUTPUT; \ 66 KEEP(*(.ResetVector.text)); \ 67 KEEP(*(.reset.literal .reset.text)) \ 68 } 69 70 #define SECTION_text(_vma_, _lma_) \ 71 .text _vma_ : _lma_ \ 72 { \ 73 _text_start = ABSOLUTE(.); \ 74 *(.literal .text) \ 75 *(.literal.* .text.* .stub) \ 76 *(.gnu.warning .gnu.linkonce.literal.*) \ 77 *(.gnu.linkonce.t.*.literal .gnu.linkonce.t.*) \ 78 *(.fini.literal) \ 79 *(.fini) \ 80 *(.gnu.version) \ 81 _text_end = ABSOLUTE(.); \ 82 } 83 84 #define SECTION_rodata(_vma_, _lma_) \ 85 .rodata _vma_ : _lma_ \ 86 { \ 87 _rodata_start = ABSOLUTE(.); \ 88 *(.rodata) \ 89 *(.rodata.*) \ 90 *(.dtb.init.rodata) \ 91 *(.gnu.linkonce.r.*) \ 92 *(.rodata1) \ 93 __XT_EXCEPTION_TABLE__ = ABSOLUTE(.); \ 94 *(.xt_except_table) \ 95 *(.gcc_except_table) \ 96 *(.gnu.linkonce.e.*) \ 97 *(.gnu.version_r) \ 98 . = ALIGN(16); \ 99 _rodata_end = ABSOLUTE(.); \ 100 } 101 102 #define SECTION_u_boot_list(_vma_, _lma_) \ 103 .u_boot_list _vma_ : _lma_ \ 104 { \ 105 _u_boot_list_start = ABSOLUTE(.); \ 106 KEEP(*(SORT(.u_boot_list*))); \ 107 _u_boot_list_end = ABSOLUTE(.); \ 108 } 109 110 #define SECTION_data(_vma_, _lma_) \ 111 .data _vma_ : _lma_ \ 112 { \ 113 _data_start = ABSOLUTE(.); \ 114 *(.data) \ 115 *(.data.*) \ 116 *(.gnu.linkonce.d.*) \ 117 *(.data1) \ 118 *(.sdata) \ 119 *(.sdata.*) \ 120 *(.gnu.linkonce.s.*) \ 121 *(.sdata2) \ 122 *(.sdata2.*) \ 123 *(.gnu.linkonce.s2.*) \ 124 *(.jcr) \ 125 *(.eh_frame) \ 126 *(.dynamic) \ 127 *(.gnu.version_d) \ 128 _data_end = ABSOLUTE(.); \ 129 } 130 131 #define SECTION_lit4(_vma_, _lma_) \ 132 .lit4 _vma_ : _lma_ \ 133 { \ 134 _lit4_start = ABSOLUTE(.); \ 135 *(*.lit4) \ 136 *(.gnu.linkonce.lit4.*) \ 137 _lit4_end = ABSOLUTE(.); \ 138 } 139 140 #define SECTION_bss(_vma_, _lma_) \ 141 .bss _vma_ : _lma_ \ 142 { \ 143 . = ALIGN(8); \ 144 _bss_start = ABSOLUTE(.); \ 145 __bss_start = ABSOLUTE(.); \ 146 *(.dynsbss) \ 147 *(.sbss) \ 148 *(.sbss.*) \ 149 *(.gnu.linkonce.sb.*) \ 150 *(.scommon) \ 151 *(.sbss2) \ 152 *(.sbss2.*) \ 153 *(.gnu.linkonce.sb2.*) \ 154 *(.dynbss) \ 155 *(.bss) \ 156 *(.bss.*) \ 157 *(.gnu.linkonce.b.*) \ 158 *(COMMON) \ 159 *(.sram.bss) \ 160 . = ALIGN(8); \ 161 _bss_end = ABSOLUTE(.); \ 162 __bss_end = ABSOLUTE(.); \ 163 _end = ALIGN(0x8); \ 164 PROVIDE(end = ALIGN(0x8)); \ 165 _stack_sentry = ALIGN(0x8); \ 166 } 167 168 #define SECTION_debug \ 169 .debug 0 : { *(.debug) } \ 170 .line 0 : { *(.line) } \ 171 .debug_srcinfo 0 : { *(.debug_srcinfo) } \ 172 .debug_sfnames 0 : { *(.debug_sfnames) } \ 173 .debug_aranges 0 : { *(.debug_aranges) } \ 174 .debug_pubnames 0 : { *(.debug_pubnames) } \ 175 .debug_info 0 : { *(.debug_info) } \ 176 .debug_abbrev 0 : { *(.debug_abbrev) } \ 177 .debug_line 0 : { *(.debug_line) } \ 178 .debug_frame 0 : { *(.debug_frame) } \ 179 .debug_str 0 : { *(.debug_str) } \ 180 .debug_loc 0 : { *(.debug_loc) } \ 181 .debug_macinfo 0 : { *(.debug_macinfo) } \ 182 .debug_weaknames 0 : { *(.debug_weaknames) } \ 183 .debug_funcnames 0 : { *(.debug_funcnames) } \ 184 .debug_typenames 0 : { *(.debug_typenames) } \ 185 .debug_varnames 0 : { *(.debug_varnames) } 186 187 #define SECTION_xtensa \ 188 .xt.insn 0 : \ 189 { \ 190 KEEP (*(.xt.insn)) \ 191 KEEP (*(.gnu.linkonce.x.*)) \ 192 } \ 193 .xt.prop 0 : \ 194 { \ 195 KEEP (*(.xt.prop)) \ 196 KEEP (*(.xt.prop.*)) \ 197 KEEP (*(.gnu.linkonce.prop.*)) \ 198 } \ 199 .xt.lit 0 : \ 200 { \ 201 KEEP (*(.xt.lit)) \ 202 KEEP (*(.xt.lit.*)) \ 203 KEEP (*(.gnu.linkonce.p.*)) \ 204 } \ 205 .xt.profile_range 0 : \ 206 { \ 207 KEEP (*(.xt.profile_range)) \ 208 KEEP (*(.gnu.linkonce.profile_range.*)) \ 209 } \ 210 .xt.profile_ranges 0 : \ 211 { \ 212 KEEP (*(.xt.profile_ranges)) \ 213 KEEP (*(.gnu.linkonce.xt.profile_ranges.*)) \ 214 } \ 215 .xt.profile_files 0 : \ 216 { \ 217 KEEP (*(.xt.profile_files)) \ 218 KEEP (*(.gnu.linkonce.xt.profile_files.*)) \ 219 } 220 221 #endif /* _XTENSA_LDSCRIPT_H */ 222