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nios2elf_PE2.l説明を見る。00001 MEMORY 00002 { 00003 reset : ORIGIN = 0x02100000, LENGTH = 32 00004 ext_flash : ORIGIN = 0x00000020, LENGTH = 8388576 00005 ext_ram : ORIGIN = 0x07000000, LENGTH = 1048576 00006 sdram : ORIGIN = 0x05000000, LENGTH = 16777216 00007 onchip_ram_1 : ORIGIN = 0x01100020, LENGTH = 65504 00008 onchip_ram_2 : ORIGIN = 0x02100020, LENGTH = 65504 00009 onchip_ram_3 : ORIGIN = 0x03100020, LENGTH = 65504 00010 onchip_ram_4 : ORIGIN = 0x04100020, LENGTH = 65504 00011 } 00012 00013 /* Define symbols for each memory base-address */ 00014 __alt_mem_ext_flash = 0x00000000 ; 00015 __alt_mem_ext_ram = 0x07000000 ; 00016 __alt_mem_sdram = 0x05000000 ; 00017 __alt_mem_onchip_ram_1 = 0x01100000 ; 00018 __alt_mem_onchip_ram_2 = 0x02100000 ; 00019 __alt_mem_onchip_ram_3 = 0x03100000 ; 00020 __alt_mem_onchip_ram_4 = 0x04100000 ; 00021 00022 PROVIDE(_hardware_init_hook = 0); 00023 PROVIDE(_software_init_hook = 0); 00024 PROVIDE(software_term_hook = 0); 00025 00026 OUTPUT_FORMAT( "elf32-littlenios2", 00027 "elf32-littlenios2", 00028 "elf32-littlenios2" ) 00029 OUTPUT_ARCH( nios2 ) 00030 ENTRY( _start ) 00031 00032 /* Do we need any of these for elf? 00033 __DYNAMIC = 0; 00034 */ 00035 00036 SECTIONS 00037 { 00038 .entry : 00039 { 00040 KEEP (*(.entry)) 00041 } > reset 00042 00043 .exceptions : 00044 { 00045 PROVIDE (__ram_exceptions_start = ABSOLUTE(.)); 00046 . = ALIGN(0x20); 00047 *(.irq) 00048 KEEP (*(.exceptions.entry.label)); 00049 KEEP (*(.exceptions.entry.user)); 00050 KEEP (*(.exceptions.entry)); 00051 KEEP (*(.exceptions.irqtest.user)); 00052 KEEP (*(.exceptions.irqtest)); 00053 KEEP (*(.exceptions.irqhandler.user)); 00054 KEEP (*(.exceptions.irqhandler)); 00055 KEEP (*(.exceptions.irqreturn.user)); 00056 KEEP (*(.exceptions.irqreturn)); 00057 KEEP (*(.exceptions.notirq.label)); 00058 KEEP (*(.exceptions.notirq.user)); 00059 KEEP (*(.exceptions.notirq)); 00060 KEEP (*(.exceptions.soft.user)); 00061 KEEP (*(.exceptions.soft)); 00062 KEEP (*(.exceptions.unknown.user)); 00063 KEEP (*(.exceptions.unknown)); 00064 KEEP (*(.exceptions.exit.label)); 00065 KEEP (*(.exceptions.exit.user)); 00066 KEEP (*(.exceptions.exit)); 00067 KEEP (*(.exceptions)); 00068 PROVIDE (__ram_exceptions_end = ABSOLUTE(.)); 00069 } > onchip_ram_2 00070 00071 PROVIDE (__flash_exceptions_start = LOADADDR(.exceptions)); 00072 00073 .text : 00074 { 00075 /* 00076 * All code sections are merged into the text output section, along with 00077 * the read only data sections. 00078 * 00079 */ 00080 00081 PROVIDE (stext = ABSOLUTE(.)); 00082 00083 *(.interp) 00084 *(.hash) 00085 *(.dynsym) 00086 *(.dynstr) 00087 *(.gnu.version) 00088 *(.gnu.version_d) 00089 *(.gnu.version_r) 00090 *(.rel.init) 00091 *(.rela.init) 00092 *(.rel.text .rel.text.* .rel.gnu.linkonce.t.*) 00093 *(.rela.text .rela.text.* .rela.gnu.linkonce.t.*) 00094 *(.rel.fini) 00095 *(.rela.fini) 00096 *(.rel.rodata .rel.rodata.* .rel.gnu.linkonce.r.*) 00097 *(.rela.rodata .rela.rodata.* .rela.gnu.linkonce.r.*) 00098 *(.rel.data .rel.data.* .rel.gnu.linkonce.d.*) 00099 *(.rela.data .rela.data.* .rela.gnu.linkonce.d.*) 00100 *(.rel.tdata .rel.tdata.* .rel.gnu.linkonce.td.*) 00101 *(.rela.tdata .rela.tdata.* .rela.gnu.linkonce.td.*) 00102 *(.rel.tbss .rel.tbss.* .rel.gnu.linkonce.tb.*) 00103 *(.rela.tbss .rela.tbss.* .rela.gnu.linkonce.tb.*) 00104 *(.rel.ctors) 00105 *(.rela.ctors) 00106 *(.rel.dtors) 00107 *(.rela.dtors) 00108 *(.rel.got) 00109 *(.rela.got) 00110 *(.rel.sdata .rel.sdata.* .rel.gnu.linkonce.s.*) 00111 *(.rela.sdata .rela.sdata.* .rela.gnu.linkonce.s.*) 00112 *(.rel.sbss .rel.sbss.* .rel.gnu.linkonce.sb.*) 00113 *(.rela.sbss .rela.sbss.* .rela.gnu.linkonce.sb.*) 00114 *(.rel.sdata2 .rel.sdata2.* .rel.gnu.linkonce.s2.*) 00115 *(.rela.sdata2 .rela.sdata2.* .rela.gnu.linkonce.s2.*) 00116 *(.rel.sbss2 .rel.sbss2.* .rel.gnu.linkonce.sb2.*) 00117 *(.rela.sbss2 .rela.sbss2.* .rela.gnu.linkonce.sb2.*) 00118 *(.rel.bss .rel.bss.* .rel.gnu.linkonce.b.*) 00119 *(.rela.bss .rela.bss.* .rela.gnu.linkonce.b.*) 00120 *(.rel.plt) 00121 *(.rela.plt) 00122 00123 KEEP (*(.init)) 00124 *(.plt) 00125 *(.text .stub .text.* .gnu.linkonce.t.*) 00126 00127 /* .gnu.warning sections are handled specially by elf32.em. */ 00128 00129 *(.gnu.warning.*) 00130 KEEP (*(.fini)) 00131 PROVIDE (__etext = ABSOLUTE(.)); 00132 PROVIDE (_etext = ABSOLUTE(.)); 00133 PROVIDE (etext = ABSOLUTE(.)); 00134 00135 *(.eh_frame_hdr) 00136 /* Ensure the __preinit_array_start label is properly aligned. We 00137 could instead move the label definition inside the section, but 00138 the linker would then create the section even if it turns out to 00139 be empty, which isn't pretty. */ 00140 . = ALIGN(32 / 8); 00141 PROVIDE (__preinit_array_start = ABSOLUTE(.)); 00142 *(.preinit_array) 00143 PROVIDE (__preinit_array_end = ABSOLUTE(.)); 00144 PROVIDE (__init_array_start = ABSOLUTE(.)); 00145 *(.init_array) 00146 PROVIDE (__init_array_end = ABSOLUTE(.)); 00147 PROVIDE (__fini_array_start = ABSOLUTE(.)); 00148 *(.fini_array) 00149 PROVIDE (__fini_array_end = ABSOLUTE(.)); 00150 SORT(CONSTRUCTORS) 00151 KEEP (*(.eh_frame)) 00152 *(.gcc_except_table) 00153 *(.dynamic) 00154 PROVIDE (__CTOR_LIST__ = ABSOLUTE(.)); 00155 KEEP (*(.ctors)) 00156 KEEP (*(SORT(.ctors.*))) 00157 PROVIDE (__CTOR_END__ = ABSOLUTE(.)); 00158 PROVIDE (__DTOR_LIST__ = ABSOLUTE(.)); 00159 KEEP (*(.dtors)) 00160 KEEP (*(SORT(.dtors.*))) 00161 PROVIDE (__DTOR_END__ = ABSOLUTE(.)); 00162 KEEP (*(.jcr)) 00163 . = ALIGN(32 / 8); 00164 } > onchip_ram_2 00165 00166 .rodata : 00167 { 00168 PROVIDE (__ram_rodata_start = ABSOLUTE(.)); 00169 . = ALIGN(32 / 8); 00170 *(.rodata .rodata.* .gnu.linkonce.r.*) 00171 *(.rodata1) 00172 . = ALIGN(32 / 8); 00173 PROVIDE (__ram_rodata_end = ABSOLUTE(.)); 00174 } > onchip_ram_2 00175 00176 PROVIDE (__flash_rodata_start = LOADADDR(.rodata)); 00177 00178 .rwdata : 00179 { 00180 PROVIDE (__ram_rwdata_start = ABSOLUTE(.)); 00181 . = ALIGN(32 / 8); 00182 *(.got.plt) *(.got) 00183 *(.data1) 00184 *(.data .data.* .gnu.linkonce.d.*) 00185 00186 _gp = ABSOLUTE(. + 0x8000); 00187 PROVIDE(gp = _gp); 00188 00189 *(.sdata .sdata.* .gnu.linkonce.s.*) 00190 *(.sdata2 .sdata2.* .gnu.linkonce.s2.*) 00191 00192 . = ALIGN(32 / 8); 00193 _edata = ABSOLUTE(.); 00194 PROVIDE (edata = ABSOLUTE(.)); 00195 PROVIDE (__ram_rwdata_end = ABSOLUTE(.)); 00196 } > onchip_ram_2 00197 00198 PROVIDE (__flash_rwdata_start = LOADADDR(.rwdata)); 00199 00200 .bss : 00201 { 00202 __bss_start = ABSOLUTE(.); 00203 PROVIDE (__sbss_start = ABSOLUTE(.)); 00204 PROVIDE (___sbss_start = ABSOLUTE(.)); 00205 00206 *(.dynsbss) 00207 *(.sbss .sbss.* .gnu.linkonce.sb.*) 00208 *(.sbss2 .sbss2.* .gnu.linkonce.sb2.*) 00209 *(.scommon) 00210 00211 PROVIDE (__sbss_end = ABSOLUTE(.)); 00212 PROVIDE (___sbss_end = ABSOLUTE(.)); 00213 00214 *(.dynbss) 00215 *(.bss .bss.* .gnu.linkonce.b.*) 00216 *(COMMON) 00217 00218 . = ALIGN(32 / 8); 00219 __bss_end = ABSOLUTE(.); 00220 } > onchip_ram_2 00221 00222 .shared : 00223 { 00224 *(.shared_memory) 00225 } > ext_ram 00226 00227 /* 00228 * One output section for each of the available partitions. These are not 00229 * used by default, but can be used by users applications using the .section 00230 * directive. 00231 * 00232 * The memory partition used for the heap is treated in special way, i.e. a 00233 * symbol is added to point to the heap start. 00234 * 00235 * Note that when running from flash, these sections are not loaded by the 00236 * HAL. 00237 * 00238 */ 00239 00240 .ext_flash : 00241 { 00242 PROVIDE (_alt_partition_ext_flash_start = ABSOLUTE(.)); 00243 *(.ext_flash .ext_flash.*) 00244 . = ALIGN(32 / 8); 00245 PROVIDE (_alt_partition_ext_flash_end = ABSOLUTE(.)); 00246 } > ext_flash 00247 00248 PROVIDE (_alt_partition_ext_flash_load_addr = LOADADDR(.ext_flash)); 00249 00250 .ext_ram : 00251 { 00252 PROVIDE (_alt_partition_ext_ram_start = ABSOLUTE(.)); 00253 *(.ext_ram .ext_ram.*) 00254 . = ALIGN(32 / 8); 00255 PROVIDE (_alt_partition_ext_ram_end = ABSOLUTE(.)); 00256 } > ext_ram 00257 00258 PROVIDE (_alt_partition_ext_ram_load_addr = LOADADDR(.ext_ram)); 00259 00260 .sdram : 00261 { 00262 PROVIDE (_alt_partition_sdram_start = ABSOLUTE(.)); 00263 *(.sdram .sdram.*) 00264 . = ALIGN(32 / 8); 00265 PROVIDE (_alt_partition_sdram_end = ABSOLUTE(.)); 00266 _end = ABSOLUTE(.); 00267 end = ABSOLUTE(.); 00268 } > sdram 00269 00270 PROVIDE (_alt_partition_sdram_load_addr = LOADADDR(.sdram)); 00271 00272 .onchip_ram_1 : 00273 { 00274 PROVIDE (_alt_partition_onchip_ram_1_start = ABSOLUTE(.)); 00275 *(.onchip_ram_1 .onchip_ram_1.*) 00276 . = ALIGN(32 / 8); 00277 PROVIDE (_alt_partition_onchip_ram_1_end = ABSOLUTE(.)); 00278 } > onchip_ram_1 00279 00280 PROVIDE (_alt_partition_onchip_ram_1_load_addr = LOADADDR(.onchip_ram_1)); 00281 00282 .onchip_ram_2 : 00283 { 00284 PROVIDE (_alt_partition_onchip_ram_2_start = ABSOLUTE(.)); 00285 *(.onchip_ram_2 .onchip_ram_2.*) 00286 . = ALIGN(32 / 8); 00287 PROVIDE (_alt_partition_onchip_ram_2_end = ABSOLUTE(.)); 00288 } > onchip_ram_2 00289 00290 PROVIDE (_alt_partition_onchip_ram_2_load_addr = LOADADDR(.onchip_ram_2)); 00291 00292 .onchip_ram_3 : 00293 { 00294 PROVIDE (_alt_partition_onchip_ram_3_start = ABSOLUTE(.)); 00295 *(.onchip_ram_3 .onchip_ram_3.*) 00296 . = ALIGN(32 / 8); 00297 PROVIDE (_alt_partition_onchip_ram_3_end = ABSOLUTE(.)); 00298 } > onchip_ram_3 00299 00300 PROVIDE (_alt_partition_onchip_ram_3_load_addr = LOADADDR(.onchip_ram_3)); 00301 00302 .onchip_ram_4 : 00303 { 00304 PROVIDE (_alt_partition_onchip_ram_4_start = ABSOLUTE(.)); 00305 *(.onchip_ram_4 .onchip_ram_4.*) 00306 . = ALIGN(32 / 8); 00307 PROVIDE (_alt_partition_onchip_ram_4_end = ABSOLUTE(.)); 00308 } > onchip_ram_4 00309 00310 PROVIDE (_alt_partition_onchip_ram_4_load_addr = LOADADDR(.onchip_ram_4)); 00311 00312 /* 00313 * Stabs debugging sections. 00314 * 00315 */ 00316 00317 .stab 0 : { *(.stab) } 00318 .stabstr 0 : { *(.stabstr) } 00319 .stab.excl 0 : { *(.stab.excl) } 00320 .stab.exclstr 0 : { *(.stab.exclstr) } 00321 .stab.index 0 : { *(.stab.index) } 00322 .stab.indexstr 0 : { *(.stab.indexstr) } 00323 .comment 0 : { *(.comment) } 00324 /* DWARF debug sections. 00325 Symbols in the DWARF debugging sections are relative to the beginning 00326 of the section so we begin them at 0. */ 00327 /* DWARF 1 */ 00328 .debug 0 : { *(.debug) } 00329 .line 0 : { *(.line) } 00330 /* GNU DWARF 1 extensions */ 00331 .debug_srcinfo 0 : { *(.debug_srcinfo) } 00332 .debug_sfnames 0 : { *(.debug_sfnames) } 00333 /* DWARF 1.1 and DWARF 2 */ 00334 .debug_aranges 0 : { *(.debug_aranges) } 00335 .debug_pubnames 0 : { *(.debug_pubnames) } 00336 /* DWARF 2 */ 00337 .debug_info 0 : { *(.debug_info .gnu.linkonce.wi.*) } 00338 .debug_abbrev 0 : { *(.debug_abbrev) } 00339 .debug_line 0 : { *(.debug_line) } 00340 .debug_frame 0 : { *(.debug_frame) } 00341 .debug_str 0 : { *(.debug_str) } 00342 .debug_loc 0 : { *(.debug_loc) } 00343 .debug_macinfo 0 : { *(.debug_macinfo) } 00344 /* SGI/MIPS DWARF 2 extensions */ 00345 .debug_weaknames 0 : { *(.debug_weaknames) } 00346 .debug_funcnames 0 : { *(.debug_funcnames) } 00347 .debug_typenames 0 : { *(.debug_typenames) } 00348 .debug_varnames 0 : { *(.debug_varnames) } 00349 00350 /* Altera debug extensions */ 00351 .debug_alt_sim_info 0 : { *(.debug_alt_sim_info) } 00352 } 00353 /* provide a pointer for the stack */ 00354 00355 /* 00356 * Don't override this, override the __alt_stack_* symbols instead. 00357 */ 00358 __alt_data_end = 0x06000000; 00359 00360 /* 00361 * The next two symbols define the location of the default stack. You can 00362 * override them to move the stack to a different memory. 00363 */ 00364 PROVIDE( __alt_stack_pointer = __alt_data_end ); 00365 PROVIDE( __alt_stack_limit = _end ); 00366 00367 /* 00368 * This symbol controls where the start of the heap is. If the stack is 00369 * contiguous with the heap then the stack will contract as memory is 00370 * allocated to the heap. 00371 * Override this symbol to put the heap in a different memory. 00372 */ 00373 PROVIDE( __alt_heap_start = end ); 00374 Copyright © 2006 by TAKAGI Nobuhisa. このページは Mon Apr 3 23:49:12 2006 に Doxygen によって生成されました。 |