ld/scripttempl/elfarc.sc

   1 #
   2 # Unusual variables checked by this code:
   3 #       NOP - four byte opcode for no-op (defaults to 0)
   4 #       NO_SMALL_DATA - no .sbss/.sbss2/.sdata/.sdata2 sections if not
   5 #               empty.
   6 #       DATA_ADDR - if end-of-text-plus-one-page isn't right for data start
   7 #       INITIAL_READONLY_SECTIONS - at start of text segment
   8 #       OTHER_READONLY_SECTIONS - other than .text .init .rodata ...
   9 #               (e.g., .PARISC.milli)
  10 #       OTHER_TEXT_SECTIONS - these get put in .text when relocating
  11 #       OTHER_READWRITE_SECTIONS - other than .data .bss .ctors .sdata ...
  12 #               (e.g., .PARISC.global)
  13 #       OTHER_BSS_SECTIONS - other than .bss .sbss ...
  14 #       OTHER_SECTIONS - at the end
  15 #       EXECUTABLE_SYMBOLS - symbols that must be defined for an
  16 #               executable (e.g., _DYNAMIC_LINK)
  17 #       TEXT_START_SYMBOLS - symbols that appear at the start of the
  18 #               .text section.
  19 #       DATA_START_SYMBOLS - symbols that appear at the start of the
  20 #               .data section.
  21 #       OTHER_GOT_SYMBOLS - symbols defined just before .got.
  22 #       OTHER_GOT_SECTIONS - sections just after .got.
  23 #       OTHER_SDATA_SECTIONS - sections just after .sdata.
  24 #       OTHER_BSS_SYMBOLS - symbols that appear at the start of the
  25 #               .bss section besides __bss_start.
  26 #       DATA_PLT - .plt should be in data segment, not text segment.
  27 #       BSS_PLT - .plt should be in bss segment
  28 #       TEXT_DYNAMIC - .dynamic in text segment, not data segment.
  29 #       EMBEDDED - whether this is for an embedded system.
  30 #       SHLIB_TEXT_START_ADDR - if set, add to SIZEOF_HEADERS to set
  31 #               start address of shared library.
  32 #       INPUT_FILES - INPUT command of files to always include
  33 #       WRITABLE_RODATA - if set, the .rodata section should be writable
  34 #       INIT_START, INIT_END -  statements just before and just after
  35 #       combination of .init sections.
  36 #       FINI_START, FINI_END - statements just before and just after
  37 #       combination of .fini sections.
  38 #       STACK_ADDR - start of a .stack section.
  39 #       OTHER_END_SYMBOLS - symbols to place right at the end of the script.
  40 #
  41 # When adding sections, do note that the names of some sections are used
  42 # when specifying the start address of the next.
  43 #
  44
  45 #  Many sections come in three flavours.  There is the 'real' section,
  46 #  like ".data".  Then there are the per-procedure or per-variable
  47 #  sections, generated by -ffunction-sections and -fdata-sections in GCC,
  48 #  and useful for --gc-sections, which for a variable "foo" might be
  49 #  ".data.foo".  Then there are the linkonce sections, for which the linker
  50 #  eliminates duplicates, which are named like ".gnu.linkonce.d.foo".
  51 #  The exact correspondences are:
  52 #
  53 #  Section      Linkonce section
  54 #  .text        .gnu.linkonce.t.foo
  55 #  .rodata      .gnu.linkonce.r.foo
  56 #  .data        .gnu.linkonce.d.foo
  57 #  .bss         .gnu.linkonce.b.foo
  58 #  .sdata       .gnu.linkonce.s.foo
  59 #  .sbss        .gnu.linkonce.sb.foo
  60 #  .sdata2      .gnu.linkonce.s2.foo
  61 #  .sbss2       .gnu.linkonce.sb2.foo
  62 #  .debug_info  .gnu.linkonce.wi.foo
  63 #  .tdata       .gnu.linkonce.td.foo
  64 #  .tbss        .gnu.linkonce.tb.foo
  65 #
  66 #  Each of these can also have corresponding .rel.* and .rela.* sections.
  67
  68 test -z "$ENTRY" && ENTRY=start
  69 test -z "${BIG_OUTPUT_FORMAT}" && BIG_OUTPUT_FORMAT=${OUTPUT_FORMAT}
  70 test -z "${LITTLE_OUTPUT_FORMAT}" && LITTLE_OUTPUT_FORMAT=${OUTPUT_FORMAT}
  71 # If we request a big endian toolchain, give a big endian linker
  72 test "${ARC_ENDIAN}" = "big" && OUTPUT_FORMAT=${BIG_OUTPUT_FORMAT}
  73 if [ -z "$MACHINE" ]; then OUTPUT_ARCH=${ARCH}; else OUTPUT_ARCH=${ARCH}:${MACHINE}; fi
  74 test -z "${ELFSIZE}" && ELFSIZE=32
  75 test -z "${ALIGNMENT}" && ALIGNMENT="${ELFSIZE} / 8"
  76 test "$LD_FLAG" = "N" && DATA_ADDR=.
  77 test -n "$CREATE_SHLIB$CREATE_PIE" && test -n "$SHLIB_DATA_ADDR" && COMMONPAGESIZE=""
  78 test -z "$CREATE_SHLIB$CREATE_PIE" && test -n "$DATA_ADDR" && COMMONPAGESIZE=""
  79 DATA_SEGMENT_ALIGN="ALIGN(${SEGMENT_SIZE}) + (. & (${MAXPAGESIZE} - 1))"
  80 DATA_SEGMENT_END=""
  81 if test -n "${COMMONPAGESIZE}"; then
  82   DATA_SEGMENT_ALIGN="ALIGN (${SEGMENT_SIZE}) - ((${MAXPAGESIZE} - .) & (${MAXPAGESIZE} - 1)); . = DATA_SEGMENT_ALIGN (${MAXPAGESIZE}, ${COMMONPAGESIZE})"
  83   DATA_SEGMENT_END=". = DATA_SEGMENT_END (.);"
  84 fi
  85 INTERP=".interp       ${RELOCATING-0} : { *(.interp) }"
  86 PLT=".plt          ${RELOCATING-0} : { *(.plt) }"
  87 test -z "$GOT" && GOT=".got          ${RELOCATING-0} : {${RELOCATING+ *(.got.plt)} *(.got) }"
  88 DYNAMIC=".dynamic      ${RELOCATING-0} : { *(.dynamic) }"
  89 RODATA=".rodata       ${RELOCATING-0} : { *(.rodata${RELOCATING+ .rodata.* .gnu.linkonce.r.*}) }"
  90 STACKNOTE="/DISCARD/ : { *(.note.GNU-stack) }"
  91 if test -z "${NO_SMALL_DATA}"; then
  92   SBSS=".sbss         ${RELOCATING-0} :
  93   {
  94     ${RELOCATING+PROVIDE (__sbss_start = .);}
  95     ${RELOCATING+PROVIDE (___sbss_start = .);}
  96     ${RELOCATING+*(.dynsbss)}
  97     *(.sbss${RELOCATING+ .sbss.* .gnu.linkonce.sb.*})
  98     ${RELOCATING+*(.scommon)}
  99     ${RELOCATING+PROVIDE (__sbss_end = .);}
 100     ${RELOCATING+PROVIDE (___sbss_end = .);}
 101   }"
 102   SBSS2=".sbss2        ${RELOCATING-0} : { *(.sbss2${RELOCATING+ .sbss2.* .gnu.linkonce.sb2.*}) }"
 103   SDATA="/* We want the small data sections together, so single-instruction offsets
 104      can access them all, and initialized data all before uninitialized, so
 105      we can shorten the on-disk segment size.  */
 106   .sdata        ${RELOCATING-0} :
 107   {
 108     ${RELOCATING+${SDATA_START_SYMBOLS}}
 109     *(.sdata${RELOCATING+ .sdata.* .gnu.linkonce.s.*})
 110   }"
 111   SDATA2=".sdata2       ${RELOCATING-0} : { *(.sdata2${RELOCATING+ .sdata2.* .gnu.linkonce.s2.*}) }"
 112   REL_SDATA=".rel.sdata    ${RELOCATING-0} : { *(.rel.sdata${RELOCATING+ .rel.sdata.* .rel.gnu.linkonce.s.*}) }
 113   .rela.sdata   ${RELOCATING-0} : { *(.rela.sdata${RELOCATING+ .rela.sdata.* .rela.gnu.linkonce.s.*}) }"
 114   REL_SBSS=".rel.sbss     ${RELOCATING-0} : { *(.rel.sbss${RELOCATING+ .rel.sbss.* .rel.gnu.linkonce.sb.*}) }
 115   .rela.sbss    ${RELOCATING-0} : { *(.rela.sbss${RELOCATING+ .rela.sbss.* .rela.gnu.linkonce.sb.*}) }"
 116   REL_SDATA2=".rel.sdata2   ${RELOCATING-0} : { *(.rel.sdata2${RELOCATING+ .rel.sdata2.* .rel.gnu.linkonce.s2.*}) }
 117   .rela.sdata2  ${RELOCATING-0} : { *(.rela.sdata2${RELOCATING+ .rela.sdata2.* .rela.gnu.linkonce.s2.*}) }"
 118   REL_SBSS2=".rel.sbss2    ${RELOCATING-0} : { *(.rel.sbss2${RELOCATING+ .rel.sbss2.* .rel.gnu.linkonce.sb2.*}) }
 119   .rela.sbss2   ${RELOCATING-0} : { *(.rela.sbss2${RELOCATING+ .rela.sbss2.* .rela.gnu.linkonce.sb2.*}) }"
 120 fi
 121 INIT_ARRAY=".init_array   ${RELOCATING-0} :
 122   {
 123     ${RELOCATING+${CREATE_SHLIB-PROVIDE (__init_array_start = .);}}
 124     KEEP (*(SORT(.init_array.*)))
 125     KEEP (*(.init_array))
 126     ${RELOCATING+${CREATE_SHLIB-PROVIDE (__init_array_end = .);}}
 127   }"
 128 FINI_ARRAY=".fini_array   ${RELOCATING-0} :
 129   {
 130     ${RELOCATING+${CREATE_SHLIB-PROVIDE (__fini_array_start = .);}}
 131     KEEP (*(SORT(.fini_array.*)))
 132     KEEP (*(.fini_array))
 133     ${RELOCATING+${CREATE_SHLIB-PROVIDE (__fini_array_end = .);}}
 134   }"
 135 CTOR=".ctors        ${CONSTRUCTING-0} :
 136   {
 137     ${CONSTRUCTING+${CTOR_START}}
 138     /* gcc uses crtbegin.o to find the start of
 139        the constructors, so we make sure it is
 140        first.  Because this is a wildcard, it
 141        doesn't matter if the user does not
 142        actually link against crtbegin.o; the
 143        linker won't look for a file to match a
 144        wildcard.  The wildcard also means that it
 145        doesn't matter which directory crtbegin.o
 146        is in.  */
 147
 148     KEEP (*crtbegin*.o(.ctors))
 149
 150     /* We don't want to include the .ctor section from
 151        from the crtend.o file until after the sorted ctors.
 152        The .ctor section from the crtend file contains the
 153        end of ctors marker and it must be last */
 154
 155     KEEP (*(EXCLUDE_FILE (*crtend*.o $OTHER_EXCLUDE_FILES) .ctors))
 156     KEEP (*(SORT(.ctors.*)))
 157     KEEP (*(.ctors))
 158     ${CONSTRUCTING+${CTOR_END}}
 159   }"
 160 DTOR=".dtors        ${CONSTRUCTING-0} :
 161   {
 162     ${CONSTRUCTING+${DTOR_START}}
 163     KEEP (*crtbegin*.o(.dtors))
 164     KEEP (*(EXCLUDE_FILE (*crtend*.o $OTHER_EXCLUDE_FILES) .dtors))
 165     KEEP (*(SORT(.dtors.*)))
 166     KEEP (*(.dtors))
 167     ${CONSTRUCTING+${DTOR_END}}
 168   }"
 169 STACK="  .stack        ${RELOCATING-0}${RELOCATING+${STACK_ADDR}} :
 170   {
 171     ${RELOCATING+_stack = .;}
 172     *(.stack)
 173   }"
 174
 175 TEXT_START_ADDR="SEGMENT_START(\"text-segment\", ${TEXT_START_ADDR})"
 176 SHLIB_TEXT_START_ADDR="SEGMENT_START(\"text-segment\", ${SHLIB_TEXT_START_ADDR:-0})"
 177
 178 # if this is for an embedded system, don't add SIZEOF_HEADERS.
 179 if [ -z "$EMBEDDED" ]; then
 180    test -z "${TEXT_BASE_ADDRESS}" && TEXT_BASE_ADDRESS="${TEXT_START_ADDR} + SIZEOF_HEADERS"
 181 else
 182    test -z "${TEXT_BASE_ADDRESS}" && TEXT_BASE_ADDRESS="${TEXT_START_ADDR}"
 183 fi
 184
 185 cat <<EOF
 186 OUTPUT_FORMAT("${OUTPUT_FORMAT}", "${BIG_OUTPUT_FORMAT}",
 187               "${LITTLE_OUTPUT_FORMAT}")
 188 OUTPUT_ARCH(${OUTPUT_ARCH})
 189 ${RELOCATING+ENTRY(${ENTRY})}
 190
 191 ${RELOCATING+${LIB_SEARCH_DIRS}}
 192 ${RELOCATING+/* Do we need any of these for elf?
 193    __DYNAMIC = 0; ${STACKZERO+${STACKZERO}} ${SHLIB_PATH+${SHLIB_PATH}}  */}
 194 ${RELOCATING+${EXECUTABLE_SYMBOLS}}
 195 ${RELOCATING+${INPUT_FILES}}
 196 ${RELOCATING- /* For some reason, the Solaris linker makes bad executables
 197   if gld -r is used and the intermediate file has sections starting
 198   at non-zero addresses.  Could be a Solaris ld bug, could be a GNU ld
 199   bug.  But for now assigning the zero vmas works.  */}
 200
 201 SECTIONS
 202 {
 203   /* Read-only sections, merged into text segment: */
 204   ${CREATE_SHLIB-${CREATE_PIE-${RELOCATING+PROVIDE (__executable_start = ${TEXT_START_ADDR}); . = ${TEXT_BASE_ADDRESS};}}}
 205   ${CREATE_SHLIB+${RELOCATING+. = ${SHLIB_TEXT_START_ADDR:-0} + SIZEOF_HEADERS;}}
 206   ${CREATE_PIE+${RELOCATING+. = ${SHLIB_TEXT_START_ADDR:-0} + SIZEOF_HEADERS;}}
 207   ${CREATE_SHLIB-${INTERP}}
 208   ${INITIAL_READONLY_SECTIONS}
 209   ${TEXT_DYNAMIC+${DYNAMIC}}
 210   .hash         ${RELOCATING-0} : { *(.hash) }
 211   .dynsym       ${RELOCATING-0} : { *(.dynsym) }
 212   .dynstr       ${RELOCATING-0} : { *(.dynstr) }
 213   .gnu.version  ${RELOCATING-0} : { *(.gnu.version) }
 214   .gnu.version_d ${RELOCATING-0}: { *(.gnu.version_d) }
 215   .gnu.version_r ${RELOCATING-0}: { *(.gnu.version_r) }
 216
 217 EOF
 218 if [ "x$COMBRELOC" = x ]; then
 219   COMBRELOCCAT=cat
 220 else
 221   COMBRELOCCAT="cat > $COMBRELOC"
 222 fi
 223 eval $COMBRELOCCAT <<EOF
 224   .rel.init     ${RELOCATING-0} : { *(.rel.init) }
 225   .rela.init    ${RELOCATING-0} : { *(.rela.init) }
 226   .rel.text     ${RELOCATING-0} : { *(.rel.text${RELOCATING+ .rel.text.* .rel.gnu.linkonce.t.*}) }
 227   .rela.text    ${RELOCATING-0} : { *(.rela.text${RELOCATING+ .rela.text.* .rela.gnu.linkonce.t.*}) }
 228   .rel.fini     ${RELOCATING-0} : { *(.rel.fini) }
 229   .rela.fini    ${RELOCATING-0} : { *(.rela.fini) }
 230   .rel.rodata   ${RELOCATING-0} : { *(.rel.rodata${RELOCATING+ .rel.rodata.* .rel.gnu.linkonce.r.*}) }
 231   .rela.rodata  ${RELOCATING-0} : { *(.rela.rodata${RELOCATING+ .rela.rodata.* .rela.gnu.linkonce.r.*}) }
 232   ${OTHER_READONLY_RELOC_SECTIONS}
 233   .rel.data     ${RELOCATING-0} : { *(.rel.data${RELOCATING+ .rel.data.* .rel.gnu.linkonce.d.*}) }
 234   .rela.data    ${RELOCATING-0} : { *(.rela.data${RELOCATING+ .rela.data.* .rela.gnu.linkonce.d.*}) }
 235   .rel.tdata    ${RELOCATING-0} : { *(.rel.tdata${RELOCATING+ .rel.tdata.* .rel.gnu.linkonce.td.*}) }
 236   .rela.tdata   ${RELOCATING-0} : { *(.rela.tdata${RELOCATING+ .rela.tdata.* .rela.gnu.linkonce.td.*}) }
 237   .rel.tbss     ${RELOCATING-0} : { *(.rel.tbss${RELOCATING+ .rel.tbss.* .rel.gnu.linkonce.tb.*}) }
 238   .rela.tbss    ${RELOCATING-0} : { *(.rela.tbss${RELOCATING+ .rela.tbss.* .rela.gnu.linkonce.tb.*}) }
 239   .rel.ctors    ${RELOCATING-0} : { *(.rel.ctors) }
 240   .rela.ctors   ${RELOCATING-0} : { *(.rela.ctors) }
 241   .rel.dtors    ${RELOCATING-0} : { *(.rel.dtors) }
 242   .rela.dtors   ${RELOCATING-0} : { *(.rela.dtors) }
 243   .rel.got      ${RELOCATING-0} : { *(.rel.got) }
 244   .rela.got     ${RELOCATING-0} : { *(.rela.got) }
 245   ${OTHER_GOT_RELOC_SECTIONS}
 246   ${REL_SDATA}
 247   ${REL_SBSS}
 248   ${REL_SDATA2}
 249   ${REL_SBSS2}
 250   .rel.bss      ${RELOCATING-0} : { *(.rel.bss${RELOCATING+ .rel.bss.* .rel.gnu.linkonce.b.*}) }
 251   .rela.bss     ${RELOCATING-0} : { *(.rela.bss${RELOCATING+ .rela.bss.* .rela.gnu.linkonce.b.*}) }
 252 EOF
 253 if [ -n "$COMBRELOC" ]; then
 254 cat <<EOF
 255   .rel.dyn      ${RELOCATING-0} :
 256     {
 257 EOF
 258 sed -e '/^[      ]*[{}][         ]*$/d;/:[       ]*$/d;/\.rela\./d;s/^.*: { *\(.*\)}$/      \1/' $COMBRELOC
 259 cat <<EOF
 260     }
 261   .rela.dyn     ${RELOCATING-0} :
 262     {
 263 EOF
 264 sed -e '/^[      ]*[{}][         ]*$/d;/:[       ]*$/d;/\.rel\./d;s/^.*: { *\(.*\)}/      \1/' $COMBRELOC
 265 cat <<EOF
 266     }
 267 EOF
 268 fi
 269 cat <<EOF
 270   .rel.plt      ${RELOCATING-0} : { *(.rel.plt) }
 271   .rela.plt     ${RELOCATING-0} : { *(.rela.plt) }
 272   ${OTHER_PLT_RELOC_SECTIONS}
 273
 274   .init         ${RELOCATING-0} :
 275   {
 276     ${RELOCATING+${INIT_START}}
 277     KEEP (*(SORT_NONE(.init)))
 278     ${RELOCATING+${INIT_END}}
 279   } =${NOP-0}
 280
 281   ${DATA_PLT-${BSS_PLT-${PLT}}}
 282   .jlitab       ${RELOCATING-0} :
 283   {
 284     ${RELOCATING+${JLI_START_TABLE}}
 285     ${RELOCATING+jlitab*.o(.jlitab*)}
 286     *(.jlitab${RELOCATING+*})
 287   } =${NOP-0}
 288   .text         ${RELOCATING-0} :
 289   {
 290     ${RELOCATING+${TEXT_START_SYMBOLS}}
 291     *(.text .stub${RELOCATING+ .text.* .gnu.linkonce.t.*})
 292     /* .gnu.warning sections are handled specially by elf.em.  */
 293     *(.gnu.warning)
 294     ${RELOCATING+${OTHER_TEXT_SECTIONS}}
 295   } =${NOP-0}
 296   .text.init ${RELOCATING-0} :
 297   {
 298     *(.text.init)
 299   } =${NOP-0}
 300   .fini         ${RELOCATING-0} :
 301   {
 302     ${RELOCATING+${FINI_START}}
 303     KEEP (*(SORT_NONE(.fini)))
 304     ${RELOCATING+${FINI_END}}
 305   } =${NOP-0}
 306   ${RELOCATING+PROVIDE (__etext = .);}
 307   ${RELOCATING+PROVIDE (_etext = .);}
 308   ${RELOCATING+PROVIDE (etext = .);}
 309   ${WRITABLE_RODATA-${RODATA}}
 310   .rodata1      ${RELOCATING-0} : { *(.rodata1) }
 311   ${CREATE_SHLIB-${SDATA2}}
 312   ${CREATE_SHLIB-${SBSS2}}
 313   ${OTHER_READONLY_SECTIONS}
 314   .eh_frame_hdr ${RELOCATING-0} : { *(.eh_frame_hdr) }
 315   .gcc_except_table ${RELOCATING-0} : ONLY_IF_RO { *(.gcc_except_table${RELOCATING+ .gcc_except_table.*}) }
 316
 317   /* Adjust the address for the data segment.  We want to adjust up to
 318      the same address within the page on the next page up.  */
 319   ${CREATE_SHLIB-${CREATE_PIE-${RELOCATING+. = ${DATA_ADDR-${DATA_SEGMENT_ALIGN}};}}}
 320   ${CREATE_SHLIB+${RELOCATING+. = ${SHLIB_DATA_ADDR-${DATA_SEGMENT_ALIGN}};}}
 321   ${CREATE_PIE+${RELOCATING+. = ${SHLIB_DATA_ADDR-${DATA_SEGMENT_ALIGN}};}}
 322
 323   /* Exception handling  */
 324   .gcc_except_table ${RELOCATING-0} : ONLY_IF_RW { *(.gcc_except_table${RELOCATING+ .gcc_except_table.*}) }
 325
 326   /* Ensure the __preinit_array_start label is properly aligned.  We
 327      could instead move the label definition inside the section, but
 328      the linker would then create the section even if it turns out to
 329      be empty, which isn't pretty.  */
 330   ${RELOCATING+. = ALIGN(${ALIGNMENT});}
 331   ${RELOCATING+${CREATE_SHLIB-PROVIDE (__preinit_array_start = .);}}
 332   .preinit_array   ${RELOCATING-0} : { *(.preinit_array) }
 333   ${RELOCATING+${CREATE_SHLIB-PROVIDE (__preinit_array_end = .);}}
 334   ${RELOCATING+${INIT_ARRAY}}
 335   ${RELOCATING+${FINI_ARRAY}}
 336
 337   .data         ${RELOCATING-0} :
 338   {
 339     ${RELOCATING+${DATA_START_SYMBOLS}}
 340     *(.data${RELOCATING+ .data.* .gnu.linkonce.d.*})
 341     ${CONSTRUCTING+SORT(CONSTRUCTORS)}
 342   }
 343   .data.init  ${RELOCATING-0} :
 344   {
 345     *(.data.init)
 346   }
 347   .data1        ${RELOCATING-0} : { *(.data1) }
 348   .tdata        ${RELOCATING-0} : { *(.tdata${RELOCATING+ .tdata.* .gnu.linkonce.td.*}) }
 349   .tbss         ${RELOCATING-0} : { *(.tbss${RELOCATING+ .tbss.* .gnu.linkonce.tb.*})${RELOCATING+ *(.tcommon)} }
 350   .eh_frame     ${RELOCATING-0} : { KEEP (*(.eh_frame)) }
 351   .gcc_except_table ${RELOCATING-0} : { *(.gcc_except_table) }
 352   ${WRITABLE_RODATA+${RODATA}}
 353   ${OTHER_READWRITE_SECTIONS}
 354   ${TEXT_DYNAMIC-${DYNAMIC}}
 355   ${RELOCATING+${CTOR}}
 356   ${RELOCATING+${DTOR}}
 357   .jcr          ${RELOCATING-0} : { KEEP (*(.jcr)) }
 358   ${DATA_PLT+${PLT}}
 359   ${RELOCATING+${OTHER_GOT_SYMBOLS}}
 360   ${GOT}
 361   ${OTHER_GOT_SECTIONS}
 362   ${CREATE_SHLIB+${SDATA2}}
 363   ${CREATE_SHLIB+${SBSS2}}
 364   ${SDATA}
 365   ${OTHER_SDATA_SECTIONS}
 366   ${RELOCATING+_edata = .;}
 367   ${RELOCATING+PROVIDE (edata = .);}
 368   ${RELOCATING+__bss_start = .;}
 369   ${RELOCATING+${OTHER_BSS_SYMBOLS}}
 370   ${SBSS}
 371   ${BSS_PLT+${PLT}}
 372   .bss          ${RELOCATING-0} :
 373   {
 374     ${RELOCATING+*(.dynbss)}
 375     *(.bss${RELOCATING+ .bss.* .gnu.linkonce.b.*})
 376     ${RELOCATING+*(COMMON)
 377     /* Align here to ensure that the .bss section occupies space up to
 378        _end.  Align after .bss to ensure correct alignment even if the
 379        .bss section disappears because there are no input sections.  */
 380     . = ALIGN(${ALIGNMENT});}
 381   }
 382   ${OTHER_BSS_SECTIONS}
 383   ${RELOCATING+. = ALIGN(${ALIGNMENT});}
 384   ${RELOCATING+_end = .;}
 385   ${RELOCATING+${OTHER_BSS_END_SYMBOLS}}
 386   ${RELOCATING+PROVIDE (end = .);}
 387   ${RELOCATING+${DATA_SEGMENT_END}}
 388 EOF
 389
 390 test -n "${RELOCATING}" && cat <<EOF
 391   /* We want to be able to set a default stack / heap size in a dejagnu
 392      board description file, but override it for selected test cases.
 393      The options appear in the wrong order to do this with a single symbol -
 394      ldflags comes after flags injected with per-file stanzas, and thus
 395      the setting from ldflags prevails.  */
 396   .heap :
 397   {
 398         __start_heap = . ;
 399         . = . + (DEFINED(__HEAP_SIZE) ? __HEAP_SIZE : (DEFINED(__DEFAULT_HEAP_SIZE) ? __DEFAULT_HEAP_SIZE : 20k)) ;
 400         __end_heap = . ;
 401   }
 402
 403   . = ALIGN(0x8);
 404   .stack :
 405   {
 406         __stack = . ;
 407         . = . + (DEFINED(__STACK_SIZE) ? __STACK_SIZE : (DEFINED(__DEFAULT_STACK_SIZE) ? __DEFAULT_STACK_SIZE : 64k)) ;
 408         __stack_top = . ;
 409   }
 410 EOF
 411
 412 source_sh $srcdir/scripttempl/misc-sections.sc
 413 source_sh $srcdir/scripttempl/DWARF.sc
 414
 415 cat <<EOF
 416   /* ARC Extension Sections */
 417   .arcextmap      0 : { *(.arcextmap.*) }
 418
 419   ${OTHER_SECTIONS}
 420   ${RELOCATING+${OTHER_END_SYMBOLS}}
 421   ${RELOCATING+${STACKNOTE}}
 422 }
 423 EOF