Subversion Repositories openrisc_2011-10-31

# If you change this file, please also look at files which source this one:

# elf64bmip.sh elf64btsmip.sh elf32btsmipn32.sh elf32bmipn32.sh

# This is an ELF platform.

SCRIPT_NAME=elf

# Handle both big- and little-ended 32-bit MIPS objects.

ARCH=mips

OUTPUT_FORMAT="elf32-bigmips"

BIG_OUTPUT_FORMAT="elf32-bigmips"

LITTLE_OUTPUT_FORMAT="elf32-littlemips"

TEMPLATE_NAME=elf32

EXTRA_EM_FILE=mipself

case "$EMULATION_NAME" in

elf32*n32*) ELFSIZE=32 ;;

elf64*) ELFSIZE=64 ;;

*) echo $0: unhandled emulation $EMULATION_NAME >&2; exit 1 ;;

esac

if test `echo "$host" | sed -e s/64//` = `echo "$target" | sed -e s/64//`; then

  case " $EMULATION_LIBPATH " in

    *" ${EMULATION_NAME} "*)

      NATIVE=yes

      ;;

  esac

fi

# Look for 64 bit target libraries in /lib64, /usr/lib64 etc., first.

LIBPATH_SUFFIX=$ELFSIZE

GENERATE_SHLIB_SCRIPT=yes

GENERATE_PIE_SCRIPT=yes

TEXT_START_ADDR=0x10000000

MAXPAGESIZE="CONSTANT (MAXPAGESIZE)"

ENTRY=__start

# Unlike most targets, the MIPS backend puts all dynamic relocations

# in a single dynobj section, which it also calls ".rel.dyn".  It does

# this so that it can easily sort all dynamic relocations before the

# output section has been populated.

OTHER_GOT_RELOC_SECTIONS="

  .rel.dyn      ${RELOCATING-0} : { *(.rel.dyn) }

"

# GOT-related settings.

# If the output has a GOT section, there must be exactly 0x7ff0 bytes

# between .got and _gp.  The ". = ." below stops the orphan code from

# inserting other sections between the assignment to _gp and the start

# of .got.

OTHER_GOT_SYMBOLS='

  . = .;

  _gp = ALIGN(16) + 0x7ff0;

'

# .got.plt is only used for the PLT psABI extension.  It should not be

# included in the .sdata block with .got, as there is no need to access

# the section from _gp.  Note that the traditional:

#

#      . = .

#      _gp = ALIGN (16) + 0x7ff0;

#      .got : { *(.got.plt) *(.got) }

#

# would set _gp to the wrong value; _gp - 0x7ff0 must point to the start

# of *(.got).

GOT=".got          ${RELOCATING-0} : { *(.got) }"

unset OTHER_READWRITE_SECTIONS

unset OTHER_RELRO_SECTIONS

if test -n "$RELRO_NOW"; then

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

else

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

fi

OTHER_SDATA_SECTIONS="

  .lit8         ${RELOCATING-0} : { *(.lit8) }

  .lit4         ${RELOCATING-0} : { *(.lit4) }

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

"

# Magic symbols.

TEXT_START_SYMBOLS='_ftext = . ;'

DATA_START_SYMBOLS='_fdata = . ;'

OTHER_BSS_SYMBOLS='_fbss = .;'

INITIAL_READONLY_SECTIONS=

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

  INITIAL_READONLY_SECTIONS=".interp       ${RELOCATING-0} : { *(.interp) }"

fi

INITIAL_READONLY_SECTIONS="${INITIAL_READONLY_SECTIONS}

  .reginfo      ${RELOCATING-0} : { *(.reginfo) }"

# Discard any .MIPS.content* or .MIPS.events* sections.  The linker

# doesn't know how to adjust them.

OTHER_SECTIONS="/DISCARD/ : { *(.MIPS.content*) *(.MIPS.events*) }"

TEXT_DYNAMIC=