Subversion Repositories openrisc_2011-10-31

#

# This is just a raw copy of elfppc.sc and has not been otherwise modified

#

# Unusual variables checked by this code:

#       NOP - four byte opcode for no-op (defaults to 0)

#       DATA_ADDR - if end-of-text-plus-one-page isn't right for data start

#       OTHER_READONLY_SECTIONS - other than .text .init .rodata ...

#               (e.g., .PARISC.milli)

#       OTHER_READWRITE_SECTIONS - other than .data .bss .ctors .sdata ...

#               (e.g., .PARISC.global)

#       ATTRS_SECTIONS - at the end

#       OTHER_SECTIONS - at the end

#       EXECUTABLE_SYMBOLS - symbols that must be defined for an

#               executable (e.g., _DYNAMIC_LINK)

#       TEXT_START_SYMBOLS - symbols that appear at the start of the

#               .text section.

#       DATA_START_SYMBOLS - symbols that appear at the start of the

#               .data section.

#       OTHER_BSS_SYMBOLS - symbols that appear at the start of the

#               .bss section besides __bss_start.

#

# When adding sections, do note that the names of some sections are used

# when specifying the start address of the next.

#

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}

test -z "$ATTRS_SECTIONS" && ATTRS_SECTIONS=".gnu.attributes 0 : { KEEP (*(.gnu.attributes)) }"

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

SBSS2=".sbss2 ${RELOCATING-0} : { *(.sbss2) }"

SDATA2=".sdata2 ${RELOCATING-0} : { *(.sdata2) }"

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

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

cat <

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

              "${LITTLE_OUTPUT_FORMAT}")

OUTPUT_ARCH(${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- /* 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.  */}

${RELOCATING+PROVIDE (__stack = 0);}

SECTIONS

{

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

  ${CREATE_SHLIB-${RELOCATING+. = ${TEXT_START_ADDR} + SIZEOF_HEADERS;}}

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

  ${CREATE_SHLIB-${INTERP}}

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

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

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

  .gnu.version ${RELOCATING-0} : { *(.gnu.version)      }

  .gnu.version_d ${RELOCATING-0} : { *(.gnu.version_d)  }

  .gnu.version_r ${RELOCATING-0} : { *(.gnu.version_r)  }

  .rela.text   ${RELOCATING-0} :

    { *(.rela.text) *(.rela.gnu.linkonce.t*) }

  .rela.data   ${RELOCATING-0} :

    { *(.rela.data) *(.rela.gnu.linkonce.d*) }

  .rela.rodata ${RELOCATING-0} :

    { *(.rela.rodata) *(.rela.gnu.linkonce.r*) }

  .rela.got     ${RELOCATING-0} : { *(.rela.got)        }

  .rela.got1    ${RELOCATING-0} : { *(.rela.got1)       }

  .rela.got2    ${RELOCATING-0} : { *(.rela.got2)       }

  .rela.ctors   ${RELOCATING-0} : { *(.rela.ctors)      }

  .rela.dtors   ${RELOCATING-0} : { *(.rela.dtors)      }

  .rela.init    ${RELOCATING-0} : { *(.rela.init)       }

  .rela.fini    ${RELOCATING-0} : { *(.rela.fini)       }

  .rela.bss     ${RELOCATING-0} : { *(.rela.bss)        }

  .rela.plt     ${RELOCATING-0} : { *(.rela.plt)        }

  .rela.sdata   ${RELOCATING-0} : { *(.rela.sdata)      }

  .rela.sbss    ${RELOCATING-0} : { *(.rela.sbss)       }

  .rela.sdata2  ${RELOCATING-0} : { *(.rela.sdata2)     }

  .rela.sbss2   ${RELOCATING-0} : { *(.rela.sbss2)      }

  .text    ${RELOCATING-0} :

  {

    ${RELOCATING+${TEXT_START_SYMBOLS}}

    *(.text)

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

    *(.gnu.warning)

    *(.gnu.linkonce.t*)

  } =${NOP-0}

  .init         ${RELOCATING-0} : { *(.init)            } =${NOP-0}

  .fini         ${RELOCATING-0} : { *(.fini)            } =${NOP-0}

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

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

  ${RELOCATING+_etext = .;}

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

  ${CREATE_SHLIB-${SDATA2}}

  ${CREATE_SHLIB-${SBSS2}}

  ${OTHER_READONLY_SECTIONS}

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

     the same address within the page on the next page up.  It would

     be more correct to do this:

       ${RELOCATING+. = ${DATA_ADDR-ALIGN(${MAXPAGESIZE}) + (ALIGN(8) & (${MAXPAGESIZE} - 1))};}

     The current expression does not correctly handle the case of a

     text segment ending precisely at the end of a page; it causes the

     data segment to skip a page.  The above expression does not have

     this problem, but it will currently (2/95) cause BFD to allocate

     a single segment, combining both text and data, for this case.

     This will prevent the text segment from being shared among

     multiple executions of the program; I think that is more

     important than losing a page of the virtual address space (note

     that no actual memory is lost; the page which is skipped can not

     be referenced).  */

  ${RELOCATING+. = ${DATA_ADDR- ALIGN(8) + ${MAXPAGESIZE}};}

  .data  ${RELOCATING-0} :

  {

    ${RELOCATING+${DATA_START_SYMBOLS}}

    *(.data)

    *(.gnu.linkonce.d*)

    ${CONSTRUCTING+CONSTRUCTORS}

  }

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

  ${OTHER_READWRITE_SECTIONS}

  .got1         ${RELOCATING-0} : { *(.got1) }

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

  /* Put .ctors and .dtors next to the .got2 section, so that the pointers

     get relocated with -mrelocatable. Also put in the .fixup pointers.

     The current compiler no longer needs this, but keep it around for 2.7.2  */

                ${RELOCATING+PROVIDE (_GOT2_START_ = .);}

  .got2         ${RELOCATING-0} :  { *(.got2) }

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

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

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

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

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

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

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

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

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

                ${RELOCATING+PROVIDE (_GOT2_END_ = .);}

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

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

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

  ${CREATE_SHLIB+${SDATA2}}

  ${CREATE_SHLIB+${SBSS2}}

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

  /* 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} : { *(.sdata) }

  ${RELOCATING+_edata  =  .;}

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

  .sbss    ${RELOCATING-0} :

  {

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

    *(.sbss)

    *(.scommon)

    *(.dynsbss)

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

  }

  ${PLT}

  .bss     ${RELOCATING-0} :

  {

   ${RELOCATING+${OTHER_BSS_SYMBOLS}}

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

   *(.dynbss)

   *(.bss)

   *(COMMON)

  }

  ${RELOCATING+_end = . ;}

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

  /* These are needed for ELF backends which have not yet been

     converted to the new style linker.  */

  .stab 0 : { *(.stab) }

  .stabstr 0 : { *(.stabstr) }

  /* 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) }

  ${ATTRS_SECTIONS}

  ${OTHER_SECTIONS}

}

EOF