[128] | 1 | ENTRY("start")
|
---|
| 2 | MEMORY
|
---|
| 3 | {
|
---|
| 4 | ext_flash : ORIGIN = 0x00000000, LENGTH = 0x01000000
|
---|
| 5 |
|
---|
| 6 | onchip_ram_64_kbytes : ORIGIN = 0x01100000, LENGTH = 0x00010000
|
---|
| 7 |
|
---|
| 8 | onchip_reset : ORIGIN = 0x05000000, LENGTH = 0x20
|
---|
| 9 | onchip : ORIGIN = 0x05000020, LENGTH = 0x00080000-0x20
|
---|
| 10 |
|
---|
| 11 | sram : ORIGIN = 0x09000000, LENGTH = 0x00100000
|
---|
| 12 |
|
---|
| 13 | sdram : ORIGIN = 0x0a000000, LENGTH = 0x01000000
|
---|
| 14 | }
|
---|
| 15 |
|
---|
| 16 | /* Define symbols for each memory base-address */
|
---|
| 17 |
|
---|
| 18 | /*
|
---|
| 19 | __alt_mem_ext_flash = 0x00000000 ;
|
---|
| 20 | __alt_mem_sram = 0x08000000 ;
|
---|
| 21 | __alt_mem_onchip_ram_64_kbytes = 0x0c010000 ;
|
---|
| 22 | __alt_mem_sdram = 0x05000000 ;
|
---|
| 23 | */
|
---|
| 24 |
|
---|
| 25 | PROVIDE(hardware_init_hook = 0);
|
---|
| 26 | PROVIDE(software_init_hook = 0);
|
---|
| 27 | PROVIDE(software_term_hook = 0);
|
---|
| 28 | PROVIDE( __alt_data_end = 0x02000000 );
|
---|
| 29 |
|
---|
| 30 | PROVIDE(StartupHook = 0);
|
---|
| 31 | PROVIDE(ShutdownHook = 0);
|
---|
| 32 | PROVIDE(PreTaskHook = 0);
|
---|
| 33 | PROVIDE(PostTaskHook = 0);
|
---|
| 34 | PROVIDE(ErrorHook = 0);
|
---|
| 35 | PROVIDE(ProtectionHook = 0);
|
---|
| 36 |
|
---|
| 37 | OUTPUT_FORMAT( "elf32-littlenios2",
|
---|
| 38 | "elf32-littlenios2",
|
---|
| 39 | "elf32-littlenios2" )
|
---|
| 40 | OUTPUT_ARCH( nios2 )
|
---|
| 41 | STARTUP(start.o)
|
---|
| 42 | ENTRY(__reset)
|
---|
| 43 |
|
---|
| 44 | /* Do we need any of these for elf?
|
---|
| 45 | __DYNAMIC = 0;
|
---|
| 46 | */
|
---|
| 47 |
|
---|
| 48 | SECTIONS
|
---|
| 49 | {
|
---|
| 50 | .entry :
|
---|
| 51 | {
|
---|
| 52 | KEEP (*(.entry))
|
---|
| 53 | } > onchip_reset
|
---|
| 54 |
|
---|
| 55 | .exceptions :
|
---|
| 56 | {
|
---|
| 57 | . = ALIGN(0x20);
|
---|
| 58 | *(.irq)
|
---|
| 59 | KEEP (*(.exceptions));
|
---|
| 60 | } > onchip
|
---|
| 61 |
|
---|
| 62 | .text :
|
---|
| 63 | {
|
---|
| 64 | /*
|
---|
| 65 | * All code sections are merged into the text output section, along with
|
---|
| 66 | * the read only data sections.
|
---|
| 67 | *
|
---|
| 68 | */
|
---|
| 69 |
|
---|
| 70 | PROVIDE (stext = ABSOLUTE(.));
|
---|
| 71 |
|
---|
| 72 | *(.interp)
|
---|
| 73 | *(.hash)
|
---|
| 74 | *(.dynsym)
|
---|
| 75 | *(.dynstr)
|
---|
| 76 | *(.gnu.version)
|
---|
| 77 | *(.gnu.version_d)
|
---|
| 78 | *(.gnu.version_r)
|
---|
| 79 | *(.rel.init)
|
---|
| 80 | *(.rela.init)
|
---|
| 81 | *(.rel.text .rel.text.* .rel.gnu.linkonce.t.*)
|
---|
| 82 | *(.rela.text .rela.text.* .rela.gnu.linkonce.t.*)
|
---|
| 83 | *(.rel.fini)
|
---|
| 84 | *(.rela.fini)
|
---|
| 85 | *(.rel.rodata .rel.rodata.* .rel.gnu.linkonce.r.*)
|
---|
| 86 | *(.rela.rodata .rela.rodata.* .rela.gnu.linkonce.r.*)
|
---|
| 87 | *(.rel.data .rel.data.* .rel.gnu.linkonce.d.*)
|
---|
| 88 | *(.rela.data .rela.data.* .rela.gnu.linkonce.d.*)
|
---|
| 89 | *(.rel.tdata .rel.tdata.* .rel.gnu.linkonce.td.*)
|
---|
| 90 | *(.rela.tdata .rela.tdata.* .rela.gnu.linkonce.td.*)
|
---|
| 91 | *(.rel.tbss .rel.tbss.* .rel.gnu.linkonce.tb.*)
|
---|
| 92 | *(.rela.tbss .rela.tbss.* .rela.gnu.linkonce.tb.*)
|
---|
| 93 | *(.rel.ctors)
|
---|
| 94 | *(.rela.ctors)
|
---|
| 95 | *(.rel.dtors)
|
---|
| 96 | *(.rela.dtors)
|
---|
| 97 | *(.rel.got)
|
---|
| 98 | *(.rela.got)
|
---|
| 99 | *(.rel.sdata .rel.sdata.* .rel.gnu.linkonce.s.*)
|
---|
| 100 | *(.rela.sdata .rela.sdata.* .rela.gnu.linkonce.s.*)
|
---|
| 101 | *(.rel.sbss .rel.sbss.* .rel.gnu.linkonce.sb.*)
|
---|
| 102 | *(.rela.sbss .rela.sbss.* .rela.gnu.linkonce.sb.*)
|
---|
| 103 | *(.rel.sdata2 .rel.sdata2.* .rel.gnu.linkonce.s2.*)
|
---|
| 104 | *(.rela.sdata2 .rela.sdata2.* .rela.gnu.linkonce.s2.*)
|
---|
| 105 | *(.rel.sbss2 .rel.sbss2.* .rel.gnu.linkonce.sb2.*)
|
---|
| 106 | *(.rela.sbss2 .rela.sbss2.* .rela.gnu.linkonce.sb2.*)
|
---|
| 107 | *(.rel.bss .rel.bss.* .rel.gnu.linkonce.b.*)
|
---|
| 108 | *(.rela.bss .rela.bss.* .rela.gnu.linkonce.b.*)
|
---|
| 109 | *(.rel.plt)
|
---|
| 110 | *(.rela.plt)
|
---|
| 111 |
|
---|
| 112 | KEEP (*(.init))
|
---|
| 113 | *(.plt)
|
---|
| 114 | *(.text .stub .text.* .gnu.linkonce.t.*)
|
---|
| 115 |
|
---|
| 116 | /* .gnu.warning sections are handled specially by elf32.em. */
|
---|
| 117 |
|
---|
| 118 | *(.gnu.warning.*)
|
---|
| 119 | KEEP (*(.fini))
|
---|
| 120 | PROVIDE (__etext = ABSOLUTE(.));
|
---|
| 121 | PROVIDE (_etext = ABSOLUTE(.));
|
---|
| 122 | PROVIDE (etext = ABSOLUTE(.));
|
---|
| 123 |
|
---|
| 124 | *(.eh_frame_hdr)
|
---|
| 125 | /* Ensure the __preinit_array_start label is properly aligned. We
|
---|
| 126 | could instead move the label definition inside the section, but
|
---|
| 127 | the linker would then create the section even if it turns out to
|
---|
| 128 | be empty, which isn't pretty. */
|
---|
| 129 | . = ALIGN(32 / 8);
|
---|
| 130 | PROVIDE (__preinit_array_start = ABSOLUTE(.));
|
---|
| 131 | *(.preinit_array)
|
---|
| 132 | PROVIDE (__preinit_array_end = ABSOLUTE(.));
|
---|
| 133 | PROVIDE (__init_array_start = ABSOLUTE(.));
|
---|
| 134 | *(.init_array)
|
---|
| 135 | PROVIDE (__init_array_end = ABSOLUTE(.));
|
---|
| 136 | PROVIDE (__fini_array_start = ABSOLUTE(.));
|
---|
| 137 | *(.fini_array)
|
---|
| 138 | PROVIDE (__fini_array_end = ABSOLUTE(.));
|
---|
| 139 | SORT(CONSTRUCTORS)
|
---|
| 140 | KEEP (*(.eh_frame))
|
---|
| 141 | *(.gcc_except_table)
|
---|
| 142 | *(.dynamic)
|
---|
| 143 |
|
---|
| 144 | /* gcc normally uses crtbegin.o to find the start of
|
---|
| 145 | the constructors instead nios2 use crtdotors.o,
|
---|
| 146 | so we make sure it is
|
---|
| 147 | first. Because this is a wildcard, it
|
---|
| 148 | doesn't matter if the user does not
|
---|
| 149 | actually link against crtdotors.o; the
|
---|
| 150 | linker won't look for a file to match a
|
---|
| 151 | wildcard. The wildcard also means that it
|
---|
| 152 | doesn't matter which directory crtdotors.o
|
---|
| 153 | is in. */
|
---|
| 154 | KEEP (*crtdotors.o(.ctors))
|
---|
| 155 | /* We don't want to include the .ctor section from
|
---|
| 156 | from the crtendtors (gcc normally uses crtend.o)
|
---|
| 157 | file until after the sorted ctors.
|
---|
| 158 | The .ctor section from the crtendtors file contains the
|
---|
| 159 | end of ctors marker and it must be last */
|
---|
| 160 | KEEP (*(EXCLUDE_FILE (*crtendtors.o ) .ctors))
|
---|
| 161 | KEEP (*(SORT(.ctors.*)))
|
---|
| 162 | KEEP (*(.ctors))
|
---|
| 163 | KEEP (*crtdotors.o(.dtors))
|
---|
| 164 | KEEP (*(EXCLUDE_FILE (*crtendtors.o ) .dtors))
|
---|
| 165 | KEEP (*(SORT(.dtors.*)))
|
---|
| 166 | KEEP (*(.dtors))
|
---|
| 167 | KEEP (*(.jcr))
|
---|
| 168 | } > onchip =0x0001883a /* NOP on Nios2 */
|
---|
| 169 |
|
---|
| 170 | .rodata :
|
---|
| 171 | {
|
---|
| 172 | . = ALIGN(32 / 8);
|
---|
| 173 | *(.rodata .rodata.* .gnu.linkonce.r.*)
|
---|
| 174 | *(.rodata1)
|
---|
| 175 | } > onchip
|
---|
| 176 |
|
---|
| 177 | .rwdata :
|
---|
| 178 | {
|
---|
| 179 | . = ALIGN(32 / 8);
|
---|
| 180 | *(.got.plt) *(.got)
|
---|
| 181 | *(.data1)
|
---|
| 182 | *(.data .data.* .gnu.linkonce.d.*)
|
---|
| 183 |
|
---|
| 184 | _gp = ABSOLUTE(. + 0x7ff0);
|
---|
| 185 | PROVIDE(gp = _gp);
|
---|
| 186 |
|
---|
| 187 | *(.sdata .sdata.* .gnu.linkonce.s.*)
|
---|
| 188 | *(.sdata2 .sdata2.* .gnu.linkonce.s2.*)
|
---|
| 189 |
|
---|
| 190 | . = ALIGN(32 / 8);
|
---|
| 191 | _edata = ABSOLUTE(.);
|
---|
| 192 | PROVIDE (edata = ABSOLUTE(.));
|
---|
| 193 | } > onchip
|
---|
| 194 |
|
---|
| 195 | .bss :
|
---|
| 196 | {
|
---|
| 197 | __bss_start = ABSOLUTE(.);
|
---|
| 198 | PROVIDE (__sbss_start = ABSOLUTE(.));
|
---|
| 199 | PROVIDE (___sbss_start = ABSOLUTE(.));
|
---|
| 200 |
|
---|
| 201 | *(.dynsbss)
|
---|
| 202 | *(.sbss .sbss.* .gnu.linkonce.sb.*)
|
---|
| 203 | *(.sbss2 .sbss2.* .gnu.linkonce.sb2.*)
|
---|
| 204 | *(.scommon)
|
---|
| 205 |
|
---|
| 206 | PROVIDE (__sbss_end = ABSOLUTE(.));
|
---|
| 207 | PROVIDE (___sbss_end = ABSOLUTE(.));
|
---|
| 208 |
|
---|
| 209 | *(.dynbss)
|
---|
| 210 | *(.bss .bss.* .gnu.linkonce.b.*)
|
---|
| 211 | *(COMMON)
|
---|
| 212 |
|
---|
| 213 | . = ALIGN(32 / 8);
|
---|
| 214 | __bss_end = ABSOLUTE(.);
|
---|
| 215 | } > onchip
|
---|
| 216 |
|
---|
| 217 | /*
|
---|
| 218 | * One output section for each of the available partitions. These are not
|
---|
| 219 | * used by default, but can be used by users applications using the .section
|
---|
| 220 | * directive.
|
---|
| 221 | *
|
---|
| 222 | * The memory partition used for the heap is treated in special way, i.e. a
|
---|
| 223 | * symbol is added to point to the heap start.
|
---|
| 224 | *
|
---|
| 225 | */
|
---|
| 226 |
|
---|
| 227 | .ext_flash :
|
---|
| 228 | {
|
---|
| 229 | PROVIDE (_alt_partition_ext_flash_start = ABSOLUTE(.));
|
---|
| 230 | *(.ext_flash)
|
---|
| 231 | . = ALIGN(32 / 8);
|
---|
| 232 | PROVIDE (_alt_partition_ext_flash_end = ABSOLUTE(.));
|
---|
| 233 | } > ext_flash
|
---|
| 234 |
|
---|
| 235 | .sram :
|
---|
| 236 | {
|
---|
| 237 | PROVIDE (_alt_partition_sram_start = ABSOLUTE(.));
|
---|
| 238 | *(.sram)
|
---|
| 239 | . = ALIGN(32 / 8);
|
---|
| 240 | PROVIDE (_alt_partition_sram_end = ABSOLUTE(.));
|
---|
| 241 | } > sram
|
---|
| 242 |
|
---|
| 243 | .nlsram (NOLOAD):
|
---|
| 244 | {
|
---|
| 245 | PROVIDE (_alt_partition_nlsram_start = ABSOLUTE(.));
|
---|
| 246 | *(.nlsram)
|
---|
| 247 | . = ALIGN(32 / 8);
|
---|
| 248 | PROVIDE (_alt_partition_nlsram_end = ABSOLUTE(.));
|
---|
| 249 | } > sram
|
---|
| 250 |
|
---|
| 251 | .onchip_ram_64_kbytes :
|
---|
| 252 | {
|
---|
| 253 | PROVIDE (_alt_partition_onchip_ram_64_kbytes_start = ABSOLUTE(.));
|
---|
| 254 | *(.onchip_ram_64_kbytes)
|
---|
| 255 | . = ALIGN(32 / 8);
|
---|
| 256 | PROVIDE (_alt_partition_onchip_ram_64_kbytes_end = ABSOLUTE(.));
|
---|
| 257 | } > onchip_ram_64_kbytes
|
---|
| 258 |
|
---|
| 259 | .sdram :
|
---|
| 260 | {
|
---|
| 261 | PROVIDE (_alt_partition_sdram_start = ABSOLUTE(.));
|
---|
| 262 | *(.sdram)
|
---|
| 263 | . = ALIGN(32 / 8);
|
---|
| 264 | PROVIDE (_alt_partition_sdram_end = ABSOLUTE(.));
|
---|
| 265 | _end = ABSOLUTE(.);
|
---|
| 266 | PROVIDE (end = ABSOLUTE(.));
|
---|
| 267 | } > sdram
|
---|
| 268 |
|
---|
| 269 | .nlsdram (NOLOAD):
|
---|
| 270 | {
|
---|
| 271 | PROVIDE (_alt_partition_nlsdram_start = ABSOLUTE(.));
|
---|
| 272 | *(.nlsdram)
|
---|
| 273 | . = ALIGN(32 / 8);
|
---|
| 274 | PROVIDE (_alt_partition_nlsdram_end = ABSOLUTE(.));
|
---|
| 275 | _end = ABSOLUTE(.);
|
---|
| 276 | PROVIDE (end = ABSOLUTE(.));
|
---|
| 277 | } > sdram
|
---|
| 278 |
|
---|
| 279 | /*
|
---|
| 280 | * Stabs debugging sections.
|
---|
| 281 | *
|
---|
| 282 | */
|
---|
| 283 |
|
---|
| 284 | .stab 0 : { *(.stab) }
|
---|
| 285 | .stabstr 0 : { *(.stabstr) }
|
---|
| 286 | .stab.excl 0 : { *(.stab.excl) }
|
---|
| 287 | .stab.exclstr 0 : { *(.stab.exclstr) }
|
---|
| 288 | .stab.index 0 : { *(.stab.index) }
|
---|
| 289 | .stab.indexstr 0 : { *(.stab.indexstr) }
|
---|
| 290 | .comment 0 : { *(.comment) }
|
---|
| 291 | /* DWARF debug sections.
|
---|
| 292 | Symbols in the DWARF debugging sections are relative to the beginning
|
---|
| 293 | of the section so we begin them at 0. */
|
---|
| 294 | /* DWARF 1 */
|
---|
| 295 | .debug 0 : { *(.debug) }
|
---|
| 296 | .line 0 : { *(.line) }
|
---|
| 297 | /* GNU DWARF 1 extensions */
|
---|
| 298 | .debug_srcinfo 0 : { *(.debug_srcinfo) }
|
---|
| 299 | .debug_sfnames 0 : { *(.debug_sfnames) }
|
---|
| 300 | /* DWARF 1.1 and DWARF 2 */
|
---|
| 301 | .debug_aranges 0 : { *(.debug_aranges) }
|
---|
| 302 | .debug_pubnames 0 : { *(.debug_pubnames) }
|
---|
| 303 | /* DWARF 2 */
|
---|
| 304 | .debug_info 0 : { *(.debug_info .gnu.linkonce.wi.*) }
|
---|
| 305 | .debug_abbrev 0 : { *(.debug_abbrev) }
|
---|
| 306 | .debug_line 0 : { *(.debug_line) }
|
---|
| 307 | .debug_frame 0 : { *(.debug_frame) }
|
---|
| 308 | .debug_str 0 : { *(.debug_str) }
|
---|
| 309 | .debug_loc 0 : { *(.debug_loc) }
|
---|
| 310 | .debug_macinfo 0 : { *(.debug_macinfo) }
|
---|
| 311 | /* SGI/MIPS DWARF 2 extensions */
|
---|
| 312 | .debug_weaknames 0 : { *(.debug_weaknames) }
|
---|
| 313 | .debug_funcnames 0 : { *(.debug_funcnames) }
|
---|
| 314 | .debug_typenames 0 : { *(.debug_typenames) }
|
---|
| 315 | .debug_varnames 0 : { *(.debug_varnames) }
|
---|
| 316 | }
|
---|
| 317 | /* provide a pointer for the stack */
|
---|
| 318 |
|
---|
| 319 |
|
---|