| 1 | /* Default linker script, for normal executables |
|---|
| 2 | |
|---|
| 3 | Copyright (c) 2008, 2009 Xilinx, Inc. All rights reserved. |
|---|
| 4 | |
|---|
| 5 | Redistribution and use in source and binary forms, with or without |
|---|
| 6 | modification, are permitted provided that the following conditions are |
|---|
| 7 | met: |
|---|
| 8 | |
|---|
| 9 | 1. Redistributions source code must retain the above copyright notice, |
|---|
| 10 | this list of conditions and the following disclaimer. |
|---|
| 11 | |
|---|
| 12 | 2. Redistributions in binary form must reproduce the above copyright |
|---|
| 13 | notice, this list of conditions and the following disclaimer in the |
|---|
| 14 | documentation and/or other materials provided with the distribution. |
|---|
| 15 | |
|---|
| 16 | 3. Neither the name of Xilinx nor the names of its contributors may be |
|---|
| 17 | used to endorse or promote products derived from this software without |
|---|
| 18 | specific prior written permission. |
|---|
| 19 | |
|---|
| 20 | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER AND CONTRIBUTORS "AS |
|---|
| 21 | IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
|---|
| 22 | TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A |
|---|
| 23 | PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
|---|
| 24 | HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
|---|
| 25 | SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED |
|---|
| 26 | TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
|---|
| 27 | PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
|---|
| 28 | LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
|---|
| 29 | NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
|---|
| 30 | SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
|---|
| 31 | */ |
|---|
| 32 | |
|---|
| 33 | OUTPUT_FORMAT("elf32-powerpc", "elf32-powerpc", |
|---|
| 34 | "elf32-powerpc") |
|---|
| 35 | OUTPUT_ARCH(powerpc:common) |
|---|
| 36 | ENTRY(_boot) |
|---|
| 37 | _START_ADDR = DEFINED(_START_ADDR) ? _START_ADDR : 0xFFFF0000; |
|---|
| 38 | _STACK_SIZE = DEFINED(_STACK_SIZE) ? _STACK_SIZE : 4k; |
|---|
| 39 | _HEAP_SIZE = DEFINED(_HEAP_SIZE) ? _HEAP_SIZE : 4k; |
|---|
| 40 | STARTUP(boot.o) |
|---|
| 41 | /* Do we need any of these for elf? |
|---|
| 42 | __DYNAMIC = 0; */ |
|---|
| 43 | PROVIDE (__stack = 0); PROVIDE (___stack = 0); |
|---|
| 44 | SECTIONS |
|---|
| 45 | { |
|---|
| 46 | |
|---|
| 47 | . = _START_ADDR; |
|---|
| 48 | .vectors BLOCK (64k): |
|---|
| 49 | { |
|---|
| 50 | *(.vectors) |
|---|
| 51 | } |
|---|
| 52 | /* Read-only sections, merged into text segment: */ |
|---|
| 53 | .hash : { *(.hash) } |
|---|
| 54 | .dynsym : { *(.dynsym) } |
|---|
| 55 | .dynstr : { *(.dynstr) } |
|---|
| 56 | .gnu.version : { *(.gnu.version) } |
|---|
| 57 | .gnu.version_d : { *(.gnu.version_d) } |
|---|
| 58 | .gnu.version_r : { *(.gnu.version_r) } |
|---|
| 59 | .rela.text : |
|---|
| 60 | { |
|---|
| 61 | *(.rela.text) |
|---|
| 62 | *(.rela.text.*) |
|---|
| 63 | *(.rela.gnu.linkonce.t*) |
|---|
| 64 | } |
|---|
| 65 | .rela.data : |
|---|
| 66 | { |
|---|
| 67 | *(.rela.data) |
|---|
| 68 | *(.rela.data.*) |
|---|
| 69 | *(.rela.gnu.linkonce.d*) |
|---|
| 70 | } |
|---|
| 71 | .rela.rodata : |
|---|
| 72 | { |
|---|
| 73 | *(.rela.rodata) |
|---|
| 74 | *(.rela.rodata.*) |
|---|
| 75 | *(.rela.gnu.linkonce.r*) |
|---|
| 76 | } |
|---|
| 77 | .rela.got : { *(.rela.got) } |
|---|
| 78 | .rela.got1 : { *(.rela.got1) } |
|---|
| 79 | .rela.got2 : { *(.rela.got2) } |
|---|
| 80 | .rela.ctors : { *(.rela.ctors) } |
|---|
| 81 | .rela.dtors : { *(.rela.dtors) } |
|---|
| 82 | .rela.init : { *(.rela.init) } |
|---|
| 83 | .rela.fini : { *(.rela.fini) } |
|---|
| 84 | .rela.bss : { *(.rela.bss) } |
|---|
| 85 | .rela.plt : { *(.rela.plt) } |
|---|
| 86 | .rela.sdata : { *(.rela.sdata) } |
|---|
| 87 | .rela.sbss : { *(.rela.sbss) } |
|---|
| 88 | .rela.sdata2 : { *(.rela.sdata2) } |
|---|
| 89 | .rela.sbss2 : { *(.rela.sbss2) } |
|---|
| 90 | .text : |
|---|
| 91 | { |
|---|
| 92 | *(.text) |
|---|
| 93 | *(.text.*) |
|---|
| 94 | /* .gnu.warning sections are handled specially by elf32.em. */ |
|---|
| 95 | *(.gnu.warning) |
|---|
| 96 | *(.gnu.linkonce.t.*) |
|---|
| 97 | } =0 |
|---|
| 98 | .init : { KEEP (*(.init)) } =0 |
|---|
| 99 | .fini : { KEEP (*(.fini)) } =0 |
|---|
| 100 | .rodata : |
|---|
| 101 | { |
|---|
| 102 | *(.rodata) |
|---|
| 103 | *(.rodata.*) |
|---|
| 104 | *(.gnu.linkonce.r.*) |
|---|
| 105 | } |
|---|
| 106 | .rodata1 : { *(.rodata1) } |
|---|
| 107 | _etext = .; |
|---|
| 108 | PROVIDE (etext = .); |
|---|
| 109 | PROVIDE (__etext = .); |
|---|
| 110 | .sdata2 : { *(.sdata2) *(.sdata2.*) *(.gnu.linkonce.s2.*)} |
|---|
| 111 | __SDATA2_START__ = ADDR(.sdata2); |
|---|
| 112 | __SDATA2_END__ = ADDR(.sdata2) + SIZEOF(.sdata2); |
|---|
| 113 | .sbss2 : { *(.sbss2) *(.gnu.linkonce.sb2.*)} |
|---|
| 114 | __SBSS2_START__ = ADDR(.sbss2); |
|---|
| 115 | __SBSS2_END__ = ADDR(.sbss2) + SIZEOF(.sbss2); |
|---|
| 116 | /* Adjust the address for the data segment. We want to adjust up to |
|---|
| 117 | the same address within the page on the next page up. It would |
|---|
| 118 | be more correct to do this: |
|---|
| 119 | . = ALIGN(0x08) + (ALIGN(8) & (0x08 - 1)); |
|---|
| 120 | The current expression does not correctly handle the case of a |
|---|
| 121 | text segment ending precisely at the end of a page; it causes the |
|---|
| 122 | data segment to skip a page. The above expression does not have |
|---|
| 123 | this problem, but it will currently (2/95) cause BFD to allocate |
|---|
| 124 | a single segment, combining both text and data, for this case. |
|---|
| 125 | This will prevent the text segment from being shared among |
|---|
| 126 | multiple executions of the program; I think that is more |
|---|
| 127 | important than losing a page of the virtual address space (note |
|---|
| 128 | that no actual memory is lost; the page which is skipped can not |
|---|
| 129 | be referenced). */ |
|---|
| 130 | /* . = ALIGN(8) + 0x08;*/ |
|---|
| 131 | .data : |
|---|
| 132 | { |
|---|
| 133 | *(.data) |
|---|
| 134 | *(.data.*) |
|---|
| 135 | *(.gnu.linkonce.d*) |
|---|
| 136 | CONSTRUCTORS |
|---|
| 137 | } |
|---|
| 138 | .data1 : { *(.data1) } |
|---|
| 139 | .got1 : { *(.got1) } |
|---|
| 140 | .dynamic : { *(.dynamic) } |
|---|
| 141 | /* Put .ctors and .dtors next to the .got2 section, so that the pointers |
|---|
| 142 | get relocated with -mrelocatable. Also put in the .fixup pointers. |
|---|
| 143 | The current compiler no longer needs this, but keep it around for 2.7.2 */ |
|---|
| 144 | PROVIDE (_GOT2_START_ = .); |
|---|
| 145 | PROVIDE (__GOT2_START_ = .); |
|---|
| 146 | .got2 : { *(.got2) } |
|---|
| 147 | PROVIDE (__CTOR_LIST__ = .); |
|---|
| 148 | PROVIDE (___CTOR_LIST__ = .); |
|---|
| 149 | .ctors : |
|---|
| 150 | { |
|---|
| 151 | /* gcc uses crtbegin.o to find the start of |
|---|
| 152 | the constructors, so we make sure it is |
|---|
| 153 | first. Because this is a wildcard, it |
|---|
| 154 | doesn't matter if the user does not |
|---|
| 155 | actually link against crtbegin.o; the |
|---|
| 156 | linker won't look for a file to match a |
|---|
| 157 | wildcard. The wildcard also means that it |
|---|
| 158 | doesn't matter which directory crtbegin.o |
|---|
| 159 | is in. */ |
|---|
| 160 | KEEP (*crtbegin.o(.ctors)) |
|---|
| 161 | /* We don't want to include the .ctor section from |
|---|
| 162 | from the crtend.o file until after the sorted ctors. |
|---|
| 163 | The .ctor section from the crtend file contains the |
|---|
| 164 | end of ctors marker and it must be last */ |
|---|
| 165 | KEEP (*(EXCLUDE_FILE (*crtend.o) .ctors)) |
|---|
| 166 | KEEP (*(SORT(.ctors.*))) |
|---|
| 167 | KEEP (*(.ctors)) |
|---|
| 168 | } |
|---|
| 169 | PROVIDE (__CTOR_END__ = .); |
|---|
| 170 | PROVIDE (___CTOR_END__ = .); |
|---|
| 171 | PROVIDE (__DTOR_LIST__ = .); |
|---|
| 172 | PROVIDE (___DTOR_LIST__ = .); |
|---|
| 173 | .dtors : |
|---|
| 174 | { |
|---|
| 175 | KEEP (*crtbegin.o(.dtors)) |
|---|
| 176 | KEEP (*(EXCLUDE_FILE (*crtend.o) .dtors)) |
|---|
| 177 | KEEP (*(SORT(.dtors.*))) |
|---|
| 178 | KEEP (*(.dtors)) |
|---|
| 179 | } |
|---|
| 180 | PROVIDE (__DTOR_END__ = .); |
|---|
| 181 | PROVIDE (___DTOR_END__ = .); |
|---|
| 182 | PROVIDE (_FIXUP_START_ = .); |
|---|
| 183 | PROVIDE (__FIXUP_START_ = .); |
|---|
| 184 | .fixup : { *(.fixup) } |
|---|
| 185 | PROVIDE (_FIXUP_END_ = .); |
|---|
| 186 | PROVIDE (__FIXUP_END_ = .); |
|---|
| 187 | PROVIDE (_GOT2_END_ = .); |
|---|
| 188 | PROVIDE (__GOT2_END_ = .); |
|---|
| 189 | PROVIDE (_GOT_START_ = .); |
|---|
| 190 | PROVIDE (__GOT_START_ = .); |
|---|
| 191 | .got : { *(.got) } |
|---|
| 192 | .got.plt : { *(.got.plt) } |
|---|
| 193 | PROVIDE (_GOT_END_ = .); |
|---|
| 194 | PROVIDE (__GOT_END_ = .); |
|---|
| 195 | /* Added by Sathya to handle C++ exceptions */ |
|---|
| 196 | .eh_frame : { |
|---|
| 197 | *(.eh_frame) |
|---|
| 198 | } |
|---|
| 199 | .jcr : { |
|---|
| 200 | *(.jcr) |
|---|
| 201 | } |
|---|
| 202 | .gcc_except_table : { |
|---|
| 203 | *(.gcc_except_table) |
|---|
| 204 | } |
|---|
| 205 | /* We want the small data sections together, so single-instruction offsets |
|---|
| 206 | can access them all, and initialized data all before uninitialized, so |
|---|
| 207 | we can shorten the on-disk segment size. */ |
|---|
| 208 | .sdata : { *(.sdata) *(.sdata.*) *(.gnu.linkonce.s.*)} |
|---|
| 209 | __SDATA_START__ = ADDR(.sdata); |
|---|
| 210 | __SDATA_END__ = ADDR(.sdata) + SIZEOF(.sdata); |
|---|
| 211 | _edata = .; |
|---|
| 212 | PROVIDE (edata = .); |
|---|
| 213 | PROVIDE (__edata = .); |
|---|
| 214 | .sbss : |
|---|
| 215 | { |
|---|
| 216 | __sbss_start = .; |
|---|
| 217 | ___sbss_start = .; |
|---|
| 218 | *(.sbss) |
|---|
| 219 | *(.sbss.*) |
|---|
| 220 | *(.gnu.linkonce.sb.*) |
|---|
| 221 | *(.scommon) |
|---|
| 222 | *(.dynsbss) |
|---|
| 223 | __sbss_end = .; |
|---|
| 224 | ___sbss_end = .; |
|---|
| 225 | } |
|---|
| 226 | .plt : { *(.plt) } |
|---|
| 227 | .bss : |
|---|
| 228 | { |
|---|
| 229 | __bss_start = .; |
|---|
| 230 | ___bss_start = .; |
|---|
| 231 | *(.dynbss) |
|---|
| 232 | *(.bss) |
|---|
| 233 | *(.bss.*) |
|---|
| 234 | *(.gnu.linkonce.b.*) |
|---|
| 235 | *(COMMON) |
|---|
| 236 | . = ALIGN(4); |
|---|
| 237 | __bss_end = .; |
|---|
| 238 | } |
|---|
| 239 | |
|---|
| 240 | .stack : |
|---|
| 241 | { |
|---|
| 242 | _stack_end = .; |
|---|
| 243 | . = . + _STACK_SIZE; |
|---|
| 244 | . = ALIGN(16); |
|---|
| 245 | __stack = .; |
|---|
| 246 | } |
|---|
| 247 | |
|---|
| 248 | .heap : |
|---|
| 249 | { |
|---|
| 250 | _heap_start = .; |
|---|
| 251 | . = . + _HEAP_SIZE; |
|---|
| 252 | . = ALIGN(16); |
|---|
| 253 | _heap_end = .; |
|---|
| 254 | } |
|---|
| 255 | |
|---|
| 256 | .tdata : { |
|---|
| 257 | *(.tdata) |
|---|
| 258 | *(.tdata.*) |
|---|
| 259 | *(.gnu.linkonce.td.*) |
|---|
| 260 | } |
|---|
| 261 | .tbss : { |
|---|
| 262 | *(.tbss) |
|---|
| 263 | *(.gnu.linkonce.tb.*) |
|---|
| 264 | } |
|---|
| 265 | /* Check to see if boot0 is going to be within 24bits from boot */ |
|---|
| 266 | /* If so, then leave the location counter as is. */ |
|---|
| 267 | /* If not, then make location counter to be 0x20 locations above boot location */ |
|---|
| 268 | /* This assumes that a BRAM is present for boot and hence 0x20 locations above it are valid */ |
|---|
| 269 | /* This fixes CR 183394 */ |
|---|
| 270 | __boot0_flag__ = ((. > 0x00ffffff) && (. < 0xff000000)) ? 1 : 0; |
|---|
| 271 | . = (__boot0_flag__) ? 0xffffffdc : .; |
|---|
| 272 | .boot0 : { *(.boot0)} |
|---|
| 273 | _end = . ; |
|---|
| 274 | end = .; |
|---|
| 275 | __end = .; |
|---|
| 276 | .boot 0xFFFFFFFC : { *(.boot) } |
|---|
| 277 | /* These are needed for ELF backends which have not yet been |
|---|
| 278 | converted to the new style linker. */ |
|---|
| 279 | .stab 0 : { *(.stab) } |
|---|
| 280 | .stabstr 0 : { *(.stabstr) } |
|---|
| 281 | /* DWARF debug sections. |
|---|
| 282 | Symbols in the DWARF debugging sections are relative to the beginning |
|---|
| 283 | of the section so we begin them at 0. */ |
|---|
| 284 | /* DWARF 1 */ |
|---|
| 285 | .debug 0 : { *(.debug) } |
|---|
| 286 | .line 0 : { *(.line) } |
|---|
| 287 | /* GNU DWARF 1 extensions */ |
|---|
| 288 | .debug_srcinfo 0 : { *(.debug_srcinfo) } |
|---|
| 289 | .debug_sfnames 0 : { *(.debug_sfnames) } |
|---|
| 290 | /* DWARF 1.1 and DWARF 2 */ |
|---|
| 291 | .debug_aranges 0 : { *(.debug_aranges) } |
|---|
| 292 | .debug_pubnames 0 : { *(.debug_pubnames) } |
|---|
| 293 | /* DWARF 2 */ |
|---|
| 294 | .debug_info 0 : { *(.debug_info) } |
|---|
| 295 | .debug_abbrev 0 : { *(.debug_abbrev) } |
|---|
| 296 | .debug_line 0 : { *(.debug_line) } |
|---|
| 297 | .debug_frame 0 : { *(.debug_frame) } |
|---|
| 298 | .debug_str 0 : { *(.debug_str) } |
|---|
| 299 | .debug_loc 0 : { *(.debug_loc) } |
|---|
| 300 | .debug_macinfo 0 : { *(.debug_macinfo) } |
|---|
| 301 | /* SGI/MIPS DWARF 2 extensions */ |
|---|
| 302 | .debug_weaknames 0 : { *(.debug_weaknames) } |
|---|
| 303 | .debug_funcnames 0 : { *(.debug_funcnames) } |
|---|
| 304 | .debug_typenames 0 : { *(.debug_typenames) } |
|---|
| 305 | .debug_varnames 0 : { *(.debug_varnames) } |
|---|
| 306 | /* These must appear regardless of . */ |
|---|
| 307 | } |
|---|
