Subversion Repositories openrisc

# This variant of elf.sc is used for ARM BPABI platforms, like Symbian

# OS, where a separate postlinker will operated on the generated

# executable or shared object.  See elf.sc for configuration variables

# that apply; only BPABI-specific variables will be noted here.

test -z "$ENTRY" && ENTRY=_start

test -z "${BIG_OUTPUT_FORMAT}" && BIG_OUTPUT_FORMAT=${OUTPUT_FORMAT}

test -z "${LITTLE_OUTPUT_FORMAT}" && LITTLE_OUTPUT_FORMAT=${OUTPUT_FORMAT}

if [ -z "$MACHINE" ]; then OUTPUT_ARCH=${ARCH}; else OUTPUT_ARCH=${ARCH}:${MACHINE}; fi

test -z "${ELFSIZE}" && ELFSIZE=32

test -z "${ALIGNMENT}" && ALIGNMENT="${ELFSIZE} / 8"

test "$LD_FLAG" = "N" && DATA_ADDR=.

test -n "$CREATE_SHLIB$CREATE_PIE" && test -n "$SHLIB_DATA_ADDR" && COMMONPAGESIZE=""

test -z "$CREATE_SHLIB$CREATE_PIE" && test -n "$DATA_ADDR" && COMMONPAGESIZE=""

test -n "$RELRO_NOW" && unset SEPARATE_GOTPLT

DATA_SEGMENT_ALIGN="ALIGN(${SEGMENT_SIZE}) + (. & (${MAXPAGESIZE} - 1))"

DATA_SEGMENT_RELRO_END=""

DATA_SEGMENT_RELRO_GOTPLT_END=""

DATA_SEGMENT_END=""

if test -n "${COMMONPAGESIZE}"; then

  DATA_SEGMENT_ALIGN="ALIGN (${SEGMENT_SIZE}) - ((${MAXPAGESIZE} - .) & (${MAXPAGESIZE} - 1)); . = DATA_SEGMENT_ALIGN (${MAXPAGESIZE}, ${COMMONPAGESIZE})"

  DATA_SEGMENT_END=". = DATA_SEGMENT_END (.);"

  if test -n "${SEPARATE_GOTPLT}"; then

    DATA_SEGMENT_RELRO_GOTPLT_END=". = DATA_SEGMENT_RELRO_END (. + ${SEPARATE_GOTPLT});"

  else

    DATA_SEGMENT_RELRO_END=". = DATA_SEGMENT_RELRO_END (.);"

  fi

fi

INTERP=".interp       0 : { *(.interp) }"

PLT=".plt          ${RELOCATING-0} : { *(.plt) }"

RODATA=".rodata       ${RELOCATING-0} : { *(.rodata${RELOCATING+ .rodata.* .gnu.linkonce.r.*}) }"

DATARELRO=".data.rel.ro : { *(.data.rel.ro.local) *(.data.rel.ro*) }"

DISCARDED="/DISCARD/ : { *(.note.GNU-stack) *(.gnu_debuglink) }"

if test -z "${NO_SMALL_DATA}"; then

  SBSS=".sbss         ${RELOCATING-0} :

  {

    ${RELOCATING+PROVIDE (__sbss_start = .);}

    ${RELOCATING+PROVIDE (___sbss_start = .);}

    *(.dynsbss)

    *(.sbss${RELOCATING+ .sbss.* .gnu.linkonce.sb.*})

    *(.scommon)

    ${RELOCATING+PROVIDE (__sbss_end = .);}

    ${RELOCATING+PROVIDE (___sbss_end = .);}

  }"

  SBSS2=".sbss2        ${RELOCATING-0} : { *(.sbss2${RELOCATING+ .sbss2.* .gnu.linkonce.sb2.*}) }"

  SDATA="/* We want the small data sections together, so single-instruction offsets

     can access them all, and initialized data all before uninitialized, so

     we can shorten the on-disk segment size.  */

  .sdata        ${RELOCATING-0} :

  {

    ${RELOCATING+${SDATA_START_SYMBOLS}}

    *(.sdata${RELOCATING+ .sdata.* .gnu.linkonce.s.*})

  }"

  SDATA2=".sdata2       ${RELOCATING-0} : { *(.sdata2${RELOCATING+ .sdata2.* .gnu.linkonce.s2.*}) }"

  REL_SDATA=".rel.sdata    ${RELOCATING-0} : { *(.rel.sdata${RELOCATING+ .rel.sdata.* .rel.gnu.linkonce.s.*}) }

  .rela.sdata   ${RELOCATING-0} : { *(.rela.sdata${RELOCATING+ .rela.sdata.* .rela.gnu.linkonce.s.*}) }"

  REL_SBSS=".rel.sbss     ${RELOCATING-0} : { *(.rel.sbss${RELOCATING+ .rel.sbss.* .rel.gnu.linkonce.sb.*}) }

  .rela.sbss    ${RELOCATING-0} : { *(.rela.sbss${RELOCATING+ .rela.sbss.* .rela.gnu.linkonce.sb.*}) }"

  REL_SDATA2=".rel.sdata2   ${RELOCATING-0} : { *(.rel.sdata2${RELOCATING+ .rel.sdata2.* .rel.gnu.linkonce.s2.*}) }

  .rela.sdata2  ${RELOCATING-0} : { *(.rela.sdata2${RELOCATING+ .rela.sdata2.* .rela.gnu.linkonce.s2.*}) }"

  REL_SBSS2=".rel.sbss2    ${RELOCATING-0} : { *(.rel.sbss2${RELOCATING+ .rel.sbss2.* .rel.gnu.linkonce.sb2.*}) }

  .rela.sbss2   ${RELOCATING-0} : { *(.rela.sbss2${RELOCATING+ .rela.sbss2.* .rela.gnu.linkonce.sb2.*}) }"

else

  NO_SMALL_DATA=" "

fi

test -n "$SEPARATE_GOTPLT" && SEPARATE_GOTPLT=" "

CTOR=".ctors        ${CONSTRUCTING-0} :

  {

    ${CONSTRUCTING+${CTOR_START}}

    /* gcc uses crtbegin.o to find the start of

       the constructors, so we make sure it is

       first.  Because this is a wildcard, it

       doesn't matter if the user does not

       actually link against crtbegin.o; the

       linker won't look for a file to match a

       wildcard.  The wildcard also means that it

       doesn't matter which directory crtbegin.o

       is in.  */

    KEEP (*crtbegin.o(.ctors))

    KEEP (*crtbegin?.o(.ctors))

    /* We don't want to include the .ctor section from

       the crtend.o file until after the sorted ctors.

       The .ctor section from the crtend file contains the

       end of ctors marker and it must be last */

    KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o $OTHER_EXCLUDE_FILES) .ctors))

    KEEP (*(SORT(.ctors.*)))

    KEEP (*(.ctors))

    ${CONSTRUCTING+${CTOR_END}}

  }"

DTOR=".dtors        ${CONSTRUCTING-0} :

  {

    ${CONSTRUCTING+${DTOR_START}}

    KEEP (*crtbegin.o(.dtors))

    KEEP (*crtbegin?.o(.dtors))

    KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o $OTHER_EXCLUDE_FILES) .dtors))

    KEEP (*(SORT(.dtors.*)))

    KEEP (*(.dtors))

    ${CONSTRUCTING+${DTOR_END}}

  }"

STACK="  .stack        ${RELOCATING-0}${RELOCATING+${STACK_ADDR}} :

  {

    ${RELOCATING+_stack = .;}

    *(.stack)

  }"

TEXT_START_ADDR="SEGMENT_START(\"text\", ${TEXT_START_ADDR})"

SHLIB_TEXT_START_ADDR="SEGMENT_START(\"text\", ${SHLIB_TEXT_START_ADDR:-0})"

DATA_ADDR="SEGMENT_START(\"data\", ${DATA_ADDR-${DATA_SEGMENT_ALIGN}})"

SHLIB_DATA_ADDR="SEGMENT_START(\"data\", ${SHLIB_DATA_ADDR-${DATA_SEGMENT_ALIGN}})"

# if this is for an embedded system, don't add SIZEOF_HEADERS.

if [ -z "$EMBEDDED" ]; then

   test -z "${TEXT_BASE_ADDRESS}" && TEXT_BASE_ADDRESS="${TEXT_START_ADDR} + SIZEOF_HEADERS"

   SHLIB_BASE_ADDRESS="${SHLIB_TEXT_START_ADDR} + SIZEOF_HEADERS"

else

   test -z "${TEXT_BASE_ADDRESS}" && TEXT_BASE_ADDRESS="${TEXT_START_ADDR}"

   SHLIB_BASE_ADDRESS="${SHLIB_TEXT_START_ADDR}"

fi

cat <

OUTPUT_FORMAT("${OUTPUT_FORMAT}", "${BIG_OUTPUT_FORMAT}",

              "${LITTLE_OUTPUT_FORMAT}")

OUTPUT_ARCH(${OUTPUT_ARCH})

${RELOCATING+ENTRY(${ENTRY})}

${RELOCATING+${LIB_SEARCH_DIRS}}

${RELOCATING+/* Do we need any of these for elf?

   __DYNAMIC = 0; ${STACKZERO+${STACKZERO}} ${SHLIB_PATH+${SHLIB_PATH}}  */}

${RELOCATING+${EXECUTABLE_SYMBOLS}}

${RELOCATING+${INPUT_FILES}}

${RELOCATING- /* For some reason, the Solaris linker makes bad executables

  if gld -r is used and the intermediate file has sections starting

  at non-zero addresses.  Could be a Solaris ld bug, could be a GNU ld

  bug.  But for now assigning the zero vmas works.  */}

/* ARM's proprietary toolchain generate these symbols to match the start

   and end of particular sections of the image.  SymbianOS uses these

   symbols.  We provide them for compatibility with ARM's toolchains.

   These symbols should be bound locally; each shared object may define

   its own version of these symbols.  */

VERSION

{

  /* Give these a dummy version to work around linker lameness.

     The name used shouldn't matter as these are all local symbols.  */

  __GNU {

    local:

      Image\$\$ER_RO\$\$Base;

      Image\$\$ER_RO\$\$Limit;

      SHT\$\$INIT_ARRAY\$\$Base;

      SHT\$\$INIT_ARRAY\$\$Limit;

      .ARM.exidx\$\$Base;

      .ARM.exidx\$\$Limit;

  };

}

SECTIONS

{

  /* Read-only sections, merged into text segment: */

  ${CREATE_SHLIB-${CREATE_PIE-${RELOCATING+PROVIDE (__executable_start = ${TEXT_START_ADDR});}}}

  ${CREATE_SHLIB-${CREATE_PIE-${RELOCATING+ . = ${TEXT_BASE_ADDRESS};}}}

  ${CREATE_SHLIB+${RELOCATING+. = ${SHLIB_BASE_ADDRESS};}}

  ${CREATE_PIE+${RELOCATING+. = ${SHLIB_BASE_ADDRESS};}}

  /* Define Image\$\$ER_RO\$\$Base.  */

  ${RELOCATING+PROVIDE (Image\$\$ER_RO\$\$Base = .);}

  ${INITIAL_READONLY_SECTIONS}

EOF

cat <

  .init         ${RELOCATING-0} :

  {

    ${RELOCATING+${INIT_START}}

    KEEP (*(.init))

    ${RELOCATING+${INIT_END}}

  } =${NOP-0}

  .text         ${RELOCATING-0} :

  {

    ${RELOCATING+${TEXT_START_SYMBOLS}}

    *(.text .stub${RELOCATING+ .text.* .gnu.linkonce.t.*})

    /* .gnu.warning sections are handled specially by elf32.em.  */

    *(.gnu.warning)

    ${RELOCATING+${OTHER_TEXT_SECTIONS}}

  } =${NOP-0}

  .fini         ${RELOCATING-0} :

  {

    ${RELOCATING+${FINI_START}}

    KEEP (*(.fini))

    ${RELOCATING+${FINI_END}}

  } =${NOP-0}

  /* The SymbianOS kernel requires that the PLT go at the end of the

     text section.  */

  ${DATA_PLT-${BSS_PLT-${PLT}}}

  ${RELOCATING+PROVIDE (__etext = .);}

  ${RELOCATING+PROVIDE (_etext = .);}

  ${RELOCATING+PROVIDE (etext = .);}

  /* Define Image\$\$ER_RO\$\$Limit.  */

  ${RELOCATING+PROVIDE (Image\$\$ER_RO\$\$Limit = .);}

  ${WRITABLE_RODATA-${RODATA}}

  .rodata1      ${RELOCATING-0} : { *(.rodata1) }

  ${CREATE_SHLIB-${SDATA2}}

  ${CREATE_SHLIB-${SBSS2}}

  /* On SymbianOS, put  .init_array and friends in the read-only

     segment; there is no runtime relocation applied to these

     arrays.  */

  .preinit_array   ${RELOCATING-0} :

  {

    ${RELOCATING+${CREATE_SHLIB-PROVIDE_HIDDEN (__preinit_array_start = .);}}

    KEEP (*(.preinit_array))

    ${RELOCATING+${CREATE_SHLIB-PROVIDE_HIDDEN (__preinit_array_end = .);}}

  }

  .init_array   ${RELOCATING-0} :

  {

    /* SymbianOS uses this symbol.  */

    ${RELOCATING+PROVIDE (SHT\$\$INIT_ARRAY\$\$Base = .);}

    ${RELOCATING+${CREATE_SHLIB-PROVIDE_HIDDEN (__init_array_start = .);}}

    KEEP (*(SORT(.init_array.*)))

    KEEP (*(.init_array))

    ${RELOCATING+${CREATE_SHLIB-PROVIDE_HIDDEN (__init_array_end = .);}}

    /* SymbianOS uses this symbol.  */

    ${RELOCATING+PROVIDE (SHT\$\$INIT_ARRAY\$\$Limit = .);}

  }

  .fini_array   ${RELOCATING-0} :

  {

    ${RELOCATING+${CREATE_SHLIB-PROVIDE_HIDDEN (__fini_array_start = .);}}

    KEEP (*(.fini_array))

    KEEP (*(SORT(.fini_array.*)))

    ${RELOCATING+${CREATE_SHLIB-PROVIDE_HIDDEN (__fini_array_end = .);}}

  }

  ${OTHER_READONLY_SECTIONS}

  .eh_frame_hdr : { *(.eh_frame_hdr) }

  .eh_frame     ${RELOCATING-0} : ONLY_IF_RO { KEEP (*(.eh_frame)) }

  .gcc_except_table ${RELOCATING-0} : ONLY_IF_RO { KEEP (*(.gcc_except_table)) *(.gcc_except_table.*) }

  /* Adjust the address for the data segment.  We want to adjust up to

     the same address within the page on the next page up.  */

  ${CREATE_SHLIB-${CREATE_PIE-${RELOCATING+. = ${DATA_ADDR};}}}

  ${CREATE_SHLIB+${RELOCATING+. = ${SHLIB_DATA_ADDR};}}

  ${CREATE_PIE+${RELOCATING+. = ${SHLIB_DATA_ADDR};}}

  /* Exception handling  */

  .eh_frame     ${RELOCATING-0} : ONLY_IF_RW { KEEP (*(.eh_frame)) }

  .gcc_except_table ${RELOCATING-0} : ONLY_IF_RW { KEEP (*(.gcc_except_table)) *(.gcc_except_table.*) }

  /* Thread Local Storage sections  */

  .tdata        ${RELOCATING-0} : { *(.tdata${RELOCATING+ .tdata.* .gnu.linkonce.td.*}) }

  .tbss         ${RELOCATING-0} : { *(.tbss${RELOCATING+ .tbss.* .gnu.linkonce.tb.*})${RELOCATING+ *(.tcommon)} }

  ${RELOCATING+${CTOR}}

  ${RELOCATING+${DTOR}}

  .jcr          ${RELOCATING-0} : { KEEP (*(.jcr)) }

  ${RELOCATING+${DATARELRO}}

  ${OTHER_RELRO_SECTIONS}

  ${RELOCATING+${DATA_SEGMENT_RELRO_END}}

  ${DATA_PLT+${PLT_BEFORE_GOT-${PLT}}}

  .data         ${RELOCATING-0} :

  {

    ${RELOCATING+${DATA_START_SYMBOLS}}

    *(.data${RELOCATING+ .data.* .gnu.linkonce.d.*})

    ${CONSTRUCTING+SORT(CONSTRUCTORS)}

  }

  .data1        ${RELOCATING-0} : { *(.data1) }

  ${WRITABLE_RODATA+${RODATA}}

  ${OTHER_READWRITE_SECTIONS}

  ${DATA_PLT+${PLT_BEFORE_GOT+${PLT}}}

  ${CREATE_SHLIB+${SDATA2}}

  ${CREATE_SHLIB+${SBSS2}}

  ${SDATA}

  ${OTHER_SDATA_SECTIONS}

  ${RELOCATING+_edata = .;}

  ${RELOCATING+PROVIDE (edata = .);}

  ${RELOCATING+. = DEFINED(__bss_segment_start) ? __bss_segment_start : .;}

  ${RELOCATING+__bss_start = .;}

  ${RELOCATING+${OTHER_BSS_SYMBOLS}}

  ${SBSS}

  ${BSS_PLT+${PLT}}

  .bss          ${RELOCATING-0} :

  {

   *(.dynbss)

   *(.bss${RELOCATING+ .bss.* .gnu.linkonce.b.*})

   *(COMMON)

   /* Align here to ensure that the .bss section occupies space up to

      _end.  Align after .bss to ensure correct alignment even if the

      .bss section disappears because there are no input sections.  */

   ${RELOCATING+. = ALIGN(${ALIGNMENT});}

  }

  ${RELOCATING+${OTHER_BSS_END_SYMBOLS}}

  ${RELOCATING+. = ALIGN(${ALIGNMENT});}

  ${RELOCATING+${OTHER_END_SYMBOLS}}

  ${RELOCATING+_end = .;}

  ${RELOCATING+PROVIDE (end = .);}

  ${RELOCATING+${DATA_SEGMENT_END}}

  /* These sections are not mapped under the BPABI.  */

  .dynamic      0 : { *(.dynamic) }

  .hash         0 : { *(.hash) }

  .dynsym       0 : { *(.dynsym) }

  .dynstr       0 : { *(.dynstr) }

  .gnu.version  0 : { *(.gnu.version) }

  .gnu.version_d 0: { *(.gnu.version_d) }

  .gnu.version_r 0: { *(.gnu.version_r) }

  ${CREATE_SHLIB-${INTERP}}

  /* Stabs debugging sections.  */

  .stab          0 : { *(.stab) }

  .stabstr       0 : { *(.stabstr) }

  .stab.excl     0 : { *(.stab.excl) }

  .stab.exclstr  0 : { *(.stab.exclstr) }

  .stab.index    0 : { *(.stab.index) }

  .stab.indexstr 0 : { *(.stab.indexstr) }

  .comment       0 : { *(.comment) }

  /* DWARF debug sections.

     Symbols in the DWARF debugging sections are relative to the beginning

     of the section so we begin them at 0.  */

  /* DWARF 1 */

  .debug          0 : { *(.debug) }

  .line           0 : { *(.line) }

  /* GNU DWARF 1 extensions */

  .debug_srcinfo  0 : { *(.debug_srcinfo) }

  .debug_sfnames  0 : { *(.debug_sfnames) }

  /* DWARF 1.1 and DWARF 2 */

  .debug_aranges  0 : { *(.debug_aranges) }

  .debug_pubnames 0 : { *(.debug_pubnames) }

  /* DWARF 2 */

  .debug_info     0 : { *(.debug_info .gnu.linkonce.wi.*) }

  .debug_abbrev   0 : { *(.debug_abbrev) }

  .debug_line     0 : { *(.debug_line) }

  .debug_frame    0 : { *(.debug_frame) }

  .debug_str      0 : { *(.debug_str) }

  .debug_loc      0 : { *(.debug_loc) }

  .debug_macinfo  0 : { *(.debug_macinfo) }

  /* SGI/MIPS DWARF 2 extensions */

  .debug_weaknames 0 : { *(.debug_weaknames) }

  .debug_funcnames 0 : { *(.debug_funcnames) }

  .debug_typenames 0 : { *(.debug_typenames) }

  .debug_varnames  0 : { *(.debug_varnames) }

  ${STACK_ADDR+${STACK}}

  ${OTHER_SECTIONS}

  ${RELOCATING+${OTHER_SYMBOLS}}

  ${RELOCATING+${DISCARDED}}

EOF

# These relocations sections are part of the read-only segment in SVR4

# executables, but are not mapped in BPABI executables.

if [ "x$COMBRELOC" = x ]; then

  COMBRELOCCAT=cat

else

  COMBRELOCCAT="cat > $COMBRELOC"

fi

eval $COMBRELOCCAT <

  .rel.init     0 : { *(.rel.init) }

  .rela.init    0 : { *(.rela.init) }

  .rel.text     0 : { *(.rel.text${RELOCATING+ .rel.text.* .rel.gnu.linkonce.t.*}) }

  .rela.text    0 : { *(.rela.text${RELOCATING+ .rela.text.* .rela.gnu.linkonce.t.*}) }

  .rel.fini     0 : { *(.rel.fini) }

  .rela.fini    0 : { *(.rela.fini) }

  .rel.rodata   0 : { *(.rel.rodata${RELOCATING+ .rel.rodata.* .rel.gnu.linkonce.r.*}) }

  .rela.rodata  0 : { *(.rela.rodata${RELOCATING+ .rela.rodata.* .rela.gnu.linkonce.r.*}) }

  ${OTHER_READONLY_RELOC_SECTIONS}

  .rel.data.rel.ro 0 : { *(.rel.data.rel.ro${RELOCATING+*}) }

  .rela.data.rel.ro 0 : { *(.rel.data.rel.ro${RELOCATING+*}) }

  .rel.data     0 : { *(.rel.data${RELOCATING+ .rel.data.* .rel.gnu.linkonce.d.*}) }

  .rela.data    0 : { *(.rela.data${RELOCATING+ .rela.data.* .rela.gnu.linkonce.d.*}) }

  .rel.tdata    0 : { *(.rel.tdata${RELOCATING+ .rel.tdata.* .rel.gnu.linkonce.td.*}) }

  .rela.tdata   0 : { *(.rela.tdata${RELOCATING+ .rela.tdata.* .rela.gnu.linkonce.td.*}) }

  .rel.tbss     0 : { *(.rel.tbss${RELOCATING+ .rel.tbss.* .rel.gnu.linkonce.tb.*}) }

  .rela.tbss    0 : { *(.rela.tbss${RELOCATING+ .rela.tbss.* .rela.gnu.linkonce.tb.*}) }

  .rel.ctors    0 : { *(.rel.ctors) }

  .rela.ctors   0 : { *(.rela.ctors) }

  .rel.dtors    0 : { *(.rel.dtors) }

  .rela.dtors   0 : { *(.rela.dtors) }

  ${REL_SDATA}

  ${REL_SBSS}

  ${REL_SDATA2}

  ${REL_SBSS2}

  .rel.bss      0 : { *(.rel.bss${RELOCATING+ .rel.bss.* .rel.gnu.linkonce.b.*}) }

  .rela.bss     0 : { *(.rela.bss${RELOCATING+ .rela.bss.* .rela.gnu.linkonce.b.*}) }

  .rel.init_array  0 : { *(.rel.init_array) }

  .rela.init_array 0 : { *(.rela.init_array) }

  .rel.fini_array  0 : { *(.rel.fini_array) }

  .rela.fini_array 0 : { *(.rela.fini_array) }

EOF

if [ -n "$COMBRELOC" ]; then

cat <

  .rel.dyn      0 :

    {

EOF

sed -e '/^[     ]*[{}][         ]*$/d;/:[       ]*$/d;/\.rela\./d;s/^.*: { *\(.*\)}$/      \1/' $COMBRELOC

cat <

    }

  .rela.dyn     0 :

    {

EOF

sed -e '/^[     ]*[{}][         ]*$/d;/:[       ]*$/d;/\.rel\./d;s/^.*: { *\(.*\)}/      \1/' $COMBRELOC

cat <

    }

EOF

fi

cat <

  .rel.plt      0 : { *(.rel.plt) }

  .rela.plt     0 : { *(.rela.plt) }

  ${OTHER_PLT_RELOC_SECTIONS}

  .rel.other    0 : { *(.rel.*) }

  .rela.other   0 : { *(.rela.*) }

  .reli.other   0 : { *(.reli.*) }

}

EOF