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[/] [open8_urisc/] [trunk/] [gnu/] [binutils/] [ld/] [scripttempl/] [elf32cr16.sc] - Blame information for rev 299

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1 145 khays
# Linker Script for National Semiconductor's CR16-ELF32.
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# The next line should be uncommented if it is desired to link
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# without libstart.o and directly enter main.
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# ENTRY=_main
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test -z "$ENTRY" && ENTRY=_start
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cat <
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/* Example Linker Script for linking NS CR16 elf32 files. */
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OUTPUT_FORMAT("${OUTPUT_FORMAT}")
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OUTPUT_ARCH(${ARCH})
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${RELOCATING+ENTRY(${ENTRY})}
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/* Define memory regions.  */
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MEMORY
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{
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        rom         : ORIGIN = 0x2,         LENGTH = 3M
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        ram         : ORIGIN = 4M,          LENGTH = 10M
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}
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/*  Many sections come in three flavours.  There is the 'real' section,
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    like ".data".  Then there are the per-procedure or per-variable
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    sections, generated by -ffunction-sections and -fdata-sections in GCC,
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    and useful for --gc-sections, which for a variable "foo" might be
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    ".data.foo".  Then there are the linkonce sections, for which the linker
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    eliminates duplicates, which are named like ".gnu.linkonce.d.foo".
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    The exact correspondences are:
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    Section     Linkonce section
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    .text       .gnu.linkonce.t.foo
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    .rdata      .gnu.linkonce.r.foo
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    .data       .gnu.linkonce.d.foo
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    .bss        .gnu.linkonce.b.foo
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    .debug_info .gnu.linkonce.wi.foo  */
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SECTIONS
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{
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  .init :
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  {
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    __INIT_START = .;
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    KEEP (*(.init))
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    __INIT_END = .;
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  } > rom
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  .fini :
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  {
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    __FINI_START = .;
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    KEEP (*(.fini))
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    __FINI_END = .;
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  } > rom
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  .jcr :
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  {
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    KEEP (*(.jcr))
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  } > rom
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  .text :
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  {
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    __TEXT_START = .;
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    *(.text) *(.text.*) *(.gnu.linkonce.t.*)
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    __TEXT_END = .;
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  } > rom
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  .rdata :
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  {
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    __RDATA_START = .;
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    *(.rdata_4) *(.rdata_2) *(.rdata_1) *(.rdata.*) *(.gnu.linkonce.r.*) *(.rodata*)
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    __RDATA_END = .;
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  } > rom
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  .ctor ALIGN(4) :
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  {
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    __CTOR_START = .;
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    /* The compiler uses crtbegin.o to find the start
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       of the constructors, so we make sure it is
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       first.  Because this is a wildcard, it
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       doesn't matter if the user does not
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       actually link against crtbegin.o; the
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       linker won't look for a file to match a
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       wildcard.  The wildcard also means that it
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       doesn't matter which directory crtbegin.o
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       is in.  */
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    KEEP (*crtbegin*.o(.ctors))
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    /* We don't want to include the .ctor section from
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       the crtend.o file until after the sorted ctors.
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       The .ctor section from the crtend file contains the
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       end of ctors marker and it must be last */
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    KEEP (*(EXCLUDE_FILE (*crtend*.o) .ctors))
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    KEEP (*(SORT(.ctors.*)))
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    KEEP (*(.ctors))
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    __CTOR_END = .;
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  } > rom
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  .dtor ALIGN(4) :
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  {
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    __DTOR_START = .;
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    KEEP (*crtbegin*.o(.dtors))
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    KEEP (*(EXCLUDE_FILE (*crtend*.o) .dtors))
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    KEEP (*(SORT(.dtors.*)))
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    KEEP (*(.dtors))
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    __DTOR_END = .;
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  } > rom
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  .data :
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  {
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    __DATA_START = .;
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    *(.data_4) *(.data_2) *(.data_1) *(.data) *(.data.*) *(.gnu.linkonce.d.*)
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    __DATA_END = .;
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  } > ram AT > rom
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  .bss (NOLOAD) :
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  {
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    __BSS_START = .;
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    *(.bss_4) *(.bss_2) *(.bss_1) *(.bss) *(COMMON) *(.bss.*) *(.gnu.linkonce.b.*)
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    __BSS_END = .;
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  } > ram
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/* You may change the sizes of the following sections to fit the actual
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   size your program requires.
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   The heap and stack are aligned to the bus width, as a speed optimization
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   for accessing data located there.  */
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  .heap (NOLOAD) :
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  {
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    . = ALIGN(4);
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    __HEAP_START = .;
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    . += 0x2000; __HEAP_MAX = .;
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  } > ram
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  .stack (NOLOAD) :
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  {
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    . = ALIGN(4);
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    . += 0x6000;
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    __STACK_START = .;
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  } > ram
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  .istack (NOLOAD) :
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  {
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    . = ALIGN(4);
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    . += 0x100;
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    __ISTACK_START = .;
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  } > ram
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  .comment        0 : { *(.comment) }
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  /* DWARF debug sections.
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     Symbols in the DWARF debugging sections are relative to the beginning
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     of the section so we begin them at 0.  */
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  .debug_aranges  0 : { *(.debug_aranges) }
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  .debug_pubnames 0 : { *(.debug_pubnames) }
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  .debug_info     0 : { *(.debug_info .gnu.linkonce.wi.*) }
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  .debug_abbrev   0 : { *(.debug_abbrev) }
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  .debug_line     0 : { *(.debug_line) }
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  .debug_frame    0 : { *(.debug_frame) }
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  .debug_str      0 : { *(.debug_str) }
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  .debug_loc      0 : { *(.debug_loc) }
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  .debug_macinfo  0 : { *(.debug_macinfo) }
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}
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__DATA_IMAGE_START = LOADADDR(.data);
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EOF

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