1OUTPUT_FORMAT("elf32-mt", "elf32-mt", "elf32-mt") 2OUTPUT_ARCH(mt) 3ENTRY(__boot_start) 4 5/* Do we need any of these for elf? 6 __DYNAMIC = 0; */ 7MEMORY 8{ 9 ram (rwx) : ORIGIN = 0x0, LENGTH = 16M 10 sram (wx) : ORIGIN = 0xfef00000, LENGTH = 64K 11 frame-buffer (w) : ORIGIN = 0xff000000, LENGTH = 80K 12 dma-ram (w) : ORIGIN = 0x1000000, LENGTH = 32M 13 ports (w) : ORIGIN = 0xfffff000, LENGTH = 4K 14} 15SECTIONS 16{ 17 /* Read-only sections, merged into text segment: */ 18 . = 0x0; 19 PROVIDE(__executable_start = 0x0); 20 .interp : { *(.interp) } 21 .hash : { *(.hash) } 22 .dynsym : { *(.dynsym) } 23 .dynstr : { *(.dynstr) } 24 .gnu.version : { *(.gnu.version) } 25 .gnu.version_d : { *(.gnu.version_d) } 26 .gnu.version_r : { *(.gnu.version_r) } 27 .rel.init : { *(.rel.init) } 28 .rela.init : { *(.rela.init) } 29 .rel.text : { *(.rel.text .rel.text.* .rel.gnu.linkonce.t.*) } 30 .rela.text : { *(.rela.text .rela.text.* .rela.gnu.linkonce.t.*) } 31 .rel.fini : { *(.rel.fini) } 32 .rela.fini : { *(.rela.fini) } 33 .rel.rodata : { *(.rel.rodata .rel.rodata.* .rel.gnu.linkonce.r.*) } 34 .rela.rodata : { *(.rela.rodata .rela.rodata.* .rela.gnu.linkonce.r.*) } 35 .rel.data.rel.ro : { *(.rel.data.rel.ro*) } 36 .rela.data.rel.ro : { *(.rela.data.rel.ro*) } 37 .rel.data : { *(.rel.data .rel.data.* .rel.gnu.linkonce.d.*) } 38 .rela.data : { *(.rela.data .rela.data.* .rela.gnu.linkonce.d.*) } 39 .rel.tdata : { *(.rel.tdata .rel.tdata.* .rel.gnu.linkonce.td.*) } 40 .rela.tdata : { *(.rela.tdata .rela.tdata.* .rela.gnu.linkonce.td.*) } 41 .rel.tbss : { *(.rel.tbss .rel.tbss.* .rel.gnu.linkonce.tb.*) } 42 .rela.tbss : { *(.rela.tbss .rela.tbss.* .rela.gnu.linkonce.tb.*) } 43 .rel.ctors : { *(.rel.ctors) } 44 .rela.ctors : { *(.rela.ctors) } 45 .rel.dtors : { *(.rel.dtors) } 46 .rela.dtors : { *(.rela.dtors) } 47 .rel.got : { *(.rel.got) } 48 .rela.got : { *(.rela.got) } 49 .rel.sdata : { *(.rel.sdata .rel.sdata.* .rel.gnu.linkonce.s.*) } 50 .rela.sdata : { *(.rela.sdata .rela.sdata.* .rela.gnu.linkonce.s.*) } 51 .rel.sbss : { *(.rel.sbss .rel.sbss.* .rel.gnu.linkonce.sb.*) } 52 .rela.sbss : { *(.rela.sbss .rela.sbss.* .rel.gnu.linkonce.sb.*) } 53 .rel.sdata2 : { *(.rel.sdata2 .rel.sdata2.* .rel.gnu.linkonce.s2.*) } 54 .rela.sdata2 : { *(.rela.sdata2 .rela.sdata2.* .rela.gnu.linkonce.s2.*) } 55 .rel.sbss2 : { *(.rel.sbss2 .rel.sbss2.* .rel.gnu.linkonce.sb2.*) } 56 .rela.sbss2 : { *(.rela.sbss2 .rela.sbss2.* .rela.gnu.linkonce.sb2.*) } 57 .rel.bss : { *(.rel.bss .rel.bss.* .rel.gnu.linkonce.b.*) } 58 .rela.bss : { *(.rela.bss .rela.bss.* .rela.gnu.linkonce.b.*) } 59 .rel.plt : { *(.rel.plt) } 60 .rela.plt : { *(.rela.plt) } 61 62 .startup : { *startup-16-003.o(.startup) } >ram =0 63 . = 0x40; 64 65 .init : { KEEP (*(.init)) } >ram =0 66 .plt : { *(.plt) } >ram 67 .text : 68 { 69 *startup-16-004.o(.text); 70 *(.text .stub .text.* .gnu.linkonce.t.*) 71 KEEP (*(.text.*personality*)) 72 /* .gnu.warning sections are handled specially by elf32.em. */ 73 *(.gnu.warning) 74 } >ram =0 75 .fini : { KEEP (*(.fini)) } >ram =0 76 PROVIDE (__etext = .); 77 PROVIDE (_etext = .); 78 PROVIDE (etext = .); 79 .rodata : { *(.rodata .rodata.* .gnu.linkonce.r.*) } >ram 80 .rodata1 : { *(.rodata1) } >ram 81 .sdata2 : { *(.sdata2 .sdata2.* .gnu.linkonce.s2.*) } >ram 82 .sbss2 : { *(.sbss2 .sbss2.* .gnu.linkonce.sb2.*) } >ram 83 .eh_frame_hdr : { *(.eh_frame_hdr) } >ram 84 .eh_frame : ONLY_IF_RO { KEEP (*(.eh_frame)) } >ram 85 .gcc_except_table : ONLY_IF_RO { KEEP (*(.gcc_except_table)) *(.gcc_except_table.*) } >ram 86 /* Adjust the address for the data segment. We want to adjust up to 87 the same address within the page on the next page up. */ 88 . = ALIGN(256) + (. & (256 - 1)); 89 /* Exception handling */ 90 .eh_frame : ONLY_IF_RW { KEEP (*(.eh_frame)) } >ram 91 .gcc_except_table : ONLY_IF_RW { KEEP (*(.gcc_except_table)) *(.gcc_except_table.*) } >ram 92 /* Thread Local Storage sections */ 93 .tdata : { *(.tdata .tdata.* .gnu.linkonce.td.*) } >ram 94 .tbss : { *(.tbss .tbss.* .gnu.linkonce.tb.*) *(.tcommon) } >ram 95 /* Ensure the __preinit_array_start label is properly aligned. We 96 could instead move the label definition inside the section, but 97 the linker would then create the section even if it turns out to 98 be empty, which isn't pretty. */ 99 . = ALIGN(32 / 8); 100 PROVIDE (__preinit_array_start = .); 101 .preinit_array : { *(.preinit_array) } >ram 102 PROVIDE (__preinit_array_end = .); 103 PROVIDE (__init_array_start = .); 104 .init_array : { *(.init_array) } >ram 105 PROVIDE (__init_array_end = .); 106 PROVIDE (__fini_array_start = .); 107 .fini_array : { *(.fini_array) } >ram 108 PROVIDE (__fini_array_end = .); 109 .ctors : 110 { 111 /* gcc uses crtbegin.o to find the start of 112 the constructors, so we make sure it is 113 first. Because this is a wildcard, it 114 doesn't matter if the user does not 115 actually link against crtbegin.o; the 116 linker won't look for a file to match a 117 wildcard. The wildcard also means that it 118 doesn't matter which directory crtbegin.o 119 is in. */ 120 KEEP (*crtbegin.o(.ctors)) 121 /* We don't want to include the .ctor section from 122 from the crtend.o file until after the sorted ctors. 123 The .ctor section from the crtend file contains the 124 end of ctors marker and it must be last */ 125 KEEP (*(EXCLUDE_FILE (*crtend*.o ) .ctors)) 126 KEEP (*(SORT(.ctors.*))) 127 KEEP (*(.ctors)) 128 } >ram 129 .dtors : 130 { 131 KEEP (*crtbegin*.o(.dtors)) 132 KEEP (*(EXCLUDE_FILE (*crtend*.o ) .dtors)) 133 KEEP (*(SORT(.dtors.*))) 134 KEEP (*(.dtors)) 135 } >ram 136 .jcr : { KEEP (*(.jcr)) } >ram 137 .data.rel.ro : { *(.data.rel.ro.local) *(.data.rel.ro*) } >ram 138 .dynamic : { *(.dynamic) } >ram 139 140 /* DJK - Re-align the data section from the read-only section. */ 141 . = ALIGN(16) + (. & (16 - 1)); 142 PROVIDE (_data = .); 143 .data : 144 { 145 *(.data .data.* .gnu.linkonce.d.*) 146 KEEP (*(.gnu.linkonce.d.*personality*)) 147 SORT(CONSTRUCTORS) 148 } >ram 149 .data1 : { *(.data1) } >ram 150 .got : { *(.got.plt) *(.got) } >ram 151 152 /* We want the small data sections together, so single-instruction offsets 153 can access them all, and initialized data all before uninitialized, so 154 we can shorten the on-disk segment size. */ 155 .sdata : { *(.sdata .sdata.* .gnu.linkonce.s.*) } >ram 156 _edata = .; 157 PROVIDE ( edata = . ); 158 .sbss : 159 { 160 PROVIDE (__sbss_start = .); 161 PROVIDE (___sbss_start = .); 162 *(.dynsbss) 163 *(.sbss .sbss.* .gnu.linkonce.sb.*) 164 *(.scommon) 165 PROVIDE (__sbss_end = .); 166 PROVIDE (___sbss_end = .); 167 } >ram 168 .bss : 169 { 170 *(.dynbss) 171 *(.bss .bss.* .gnu.linkonce.b.*) 172 *(COMMON) 173 /* Align here to ensure that the .bss section occupies space up to 174 _end. Align after .bss to ensure correct alignment even if the 175 .bss section disappears because there are no input sections. */ 176 . = ALIGN(32 / 8); 177 } >ram 178 . = ALIGN(32 / 8); 179 __bss_start = ADDR ( .sbss ) ; 180 __bss_end = __bss_start + SIZEOF ( .sbss ) + SIZEOF ( .bss ) - 4 ; 181 _end = .; 182 PROVIDE (end = .); 183 184 /* DJK - Initialized frame buffer data is copied from RAM to FB. */ 185 .auxbss : AT (ADDR(.bss) + SIZEOF(.bss)) { *(.auxbss) } >frame-buffer 186 .auxdata : AT (LOADADDR(.auxbss) + SIZEOF(.auxbss)) 187 { 188 *(.auxdata.bank0) 189 . = ALIGN(0x4000); 190 *(.auxdata.bank1) 191 . = ALIGN(0x4000); 192 *(.auxdata.bank2) 193 . = ALIGN(0x4000); 194 *(.auxdata.bank3) 195 . = ALIGN(0x4000); 196 *(.auxdata.bank4) 197 *(.auxdata) 198 } >frame-buffer 199 200 _fbbss_start = ADDR ( .auxbss ); 201 _fbbss_end = _fbbss_start + SIZEOF ( .auxbss ) - 4; 202 _fbdata_start = LOADADDR ( .auxdata ); 203 _fbdata_end = _fbdata_start + SIZEOF ( .auxdata ) ; 204 _fbdata_vma = ADDR ( .auxdata ); 205 206 PROVIDE (__FRAME_BUFFER_START = ADDR(.auxbss) ); 207 PROVIDE (__FRAME_BUFFER_SIZE = 0x14000); 208 PROVIDE (__FRAME_BUFFER_END = __FRAME_BUFFER_START + __FRAME_BUFFER_SIZE); 209 210 /* For now, locate data ahead of code in onchip sram/memory. */ 211 .sram : AT (LOADADDR(.auxdata) + SIZEOF(.auxdata)) 212 { 213 *(.sram.data) 214 . = ALIGN(4) ; /* Make sure that instructions are aligned... */ 215 *(.sram.text) 216 } >sram 217 218 _sram_data_start = LOADADDR ( .sram ); 219 _sram_data_end = _sram_data_start + SIZEOF ( .sram ) ; 220 _sram_data_vma = ADDR ( .sram ); 221 222 .dma : { _dma_start = .; *(.dma) _dma_end = .; } >dma-ram 223 .internal_io (NOLOAD) : { *(.internal_io) } >ports 224 225 /* Stabs debugging sections. */ 226 .stab 0 : { *(.stab) } 227 .stabstr 0 : { *(.stabstr) } 228 .stab.excl 0 : { *(.stab.excl) } 229 .stab.exclstr 0 : { *(.stab.exclstr) } 230 .stab.index 0 : { *(.stab.index) } 231 .stab.indexstr 0 : { *(.stab.indexstr) } 232 .comment 0 : { *(.comment) } 233 /* DWARF debug sections. 234 Symbols in the DWARF debugging sections are relative to the beginning 235 of the section so we begin them at 0. */ 236 /* DWARF 1 */ 237 .debug 0 : { *(.debug) } 238 .line 0 : { *(.line) } 239 /* GNU DWARF 1 extensions */ 240 .debug_srcinfo 0 : { *(.debug_srcinfo) } 241 .debug_sfnames 0 : { *(.debug_sfnames) } 242 /* DWARF 1.1 and DWARF 2 */ 243 .debug_aranges 0 : { *(.debug_aranges) } 244 .debug_pubnames 0 : { *(.debug_pubnames) } 245 /* DWARF 2 */ 246 .debug_info 0 : { *(.debug_info) *(.gnu.linkonce.wi.*) } 247 .debug_abbrev 0 : { *(.debug_abbrev) } 248 .debug_line 0 : { *(.debug_line) } 249 .debug_frame 0 : { *(.debug_frame) } 250 .debug_str 0 : { *(.debug_str) } 251 .debug_loc 0 : { *(.debug_loc) } 252 .debug_macinfo 0 : { *(.debug_macinfo) } 253 /* SGI/MIPS DWARF 2 extensions */ 254 .debug_weaknames 0 : { *(.debug_weaknames) } 255 .debug_funcnames 0 : { *(.debug_funcnames) } 256 .debug_typenames 0 : { *(.debug_typenames) } 257 .debug_varnames 0 : { *(.debug_varnames) } 258 259 /* In a multi-core environment, each core is given its own stack space 260 equal to __stack_size, growing downwards. */ 261 PROVIDE (__stack = 0x97ff0); 262 PROVIDE (__stack_size = 0x800); 263 264 .stack (DEFINED(__stack) ? __stack : 0x007ffff0) : 265 { 266 __stack = .; 267 *(.stack) 268 LONG(0xdeaddead) 269 } 270 /DISCARD/ : { *(.note.GNU-stack) } 271} 272