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[/] [openrisc/] [trunk/] [gnu-old/] [binutils-2.18.50/] [ld/] [scripttempl/] [tic4xcoff.sc] - Blame information for rev 816

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1 38 julius
# In microcomputer (MC) mode, the vectors are mapped into the on-chip ROM,
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# otherwise in microprocessor (MP) mode the vectors are mapped to address 0
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# on the external bus.  In MC mode, the on-chip ROM contains a bootloader program
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# that loads the internal RAM from the serial port or external ROM.
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#
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# Common configurations:
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# 1. MC mode, no external memory (serial boot).
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# 2. MC mode, external RAM (serial boot).
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# 3. MC mode, external ROM.
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# 4. MC mode, external ROM, external RAM.
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# 5. MP mode, external ROM.
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# 6. MP mode, external ROM, external RAM.
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# 7. MP mode, external RAM (dual-port with hosting CPU or external debugger).
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#
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# Config  TEXT     DATA/BSS
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# 1.      INT_RAM  INT_RAM   (mcmode,onchip)
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# 2.      EXT_RAM  EXT_RAM   (mcmode,extram)
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# 3.      INT_RAM  INT_RAM   (mcmode,onchip)
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# 4.      EXT_RAM  EXT_RAM   (mcmode,extram)
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# 5.      EXT_ROM  INT_RAM   (mpmode,onchip,extrom)
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# 6.      EXT_ROM  EXT_RAM   (mpmode,extram,extrom)
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# 7.      EXT_RAM  EXT_RAM   (mpmode,extram)
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#
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# In MC mode, TEXT and DATA are copied into RAM by the bootloader.
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#
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# In MP mode with external ROM, DATA needs to be copied into RAM at boot time.
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#
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# If there is external RAM it is better to use that and reserve the internal RAM
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# for data buffers.  However, the address of the external RAM needs to be specified.
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#
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# This emulation assumes config 7.
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case $OUTPUT_ARCH in
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  tic3x) OUTPUT_ARCHNAME="TMS320C3x" ;;
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  tic4x) OUTPUT_ARCHNAME="TMS320C4x" ;;
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esac
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case $ONCHIP in
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  yes) RAM=RAM;
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       STACK_SIZE_DEFAULT=128;
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       HEAP_SIZE_DEFAULT=0;
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       ;;
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  *)   RAM=EXT0;
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       STACK_SIZE_DEFAULT=0x1000;
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       HEAP_SIZE_DEFAULT=0x4000;
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       ;;
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esac
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TEXT_MEMORY=$RAM;
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DATA_MEMORY=$RAM;
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MEMORY_DEF="
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/* C30 memory space.  */
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MEMORY
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{
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   EXT0  :  org = 0x0000000, len = 0x800000  /* External address bus.  */
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   XBUS  :  org = 0x0800000, len = 0x002000  /* Expansion bus.         */
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   IOBUS :  org = 0x0804000, len = 0x002000  /* I/O BUS.               */
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   RAM0  :  org = 0x0809800, len = 0x000400  /* Internal RAM block 0.  */
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   RAM1  :  org = 0x0809a00, len = 0x000400  /* Internal RAM block 1.  */
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   RAM   :  org = 0x0809800, len = 0x000800  /* Internal RAM.          */
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   EXT1  :  org = 0x080a000, len = 0x7f6000  /* External address bus.  */
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}
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"
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test -z "$ENTRY" && ENTRY=_start
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cat <
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${RELOCATING+/* Linker script for $OUTPUT_ARCHNAME executable.  */}
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${RELOCATING-/* Linker script for $OUTPUT_ARCHNAME object file (ld -r).  */}
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OUTPUT_FORMAT("${OUTPUT_FORMAT}")
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OUTPUT_ARCH("${OUTPUT_ARCH}")
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${LIB_SEARCH_DIRS}
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ENTRY(${ENTRY})
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${RELOCATING+ __HEAP_SIZE = DEFINED(__HEAP_SIZE) ? __HEAP_SIZE : ${HEAP_SIZE_DEFAULT};}
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${RELOCATING+ __STACK_SIZE  = DEFINED(__STACK_SIZE)  ? __STACK_SIZE  : ${STACK_SIZE_DEFAULT};}
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${RELOCATING+${MEMORY_DEF}}
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/* In the small memory model the .data and .bss sections must be contiguous
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   when loaded and fit within the same page.   The DP register is loaded
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   with the page address.  */
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SECTIONS
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{
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  /* Reset, interrupt, and trap vectors.  */
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  .vectors ${RELOCATING+ 0} : {
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    *(.vectors)
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  } ${RELOCATING+ > ${TEXT_MEMORY}}
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  /* Constants.  */
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  .const : {
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    *(.const)
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  } ${RELOCATING+ > ${TEXT_MEMORY}}
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  /* Program code.  */
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  .text : {
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    ${RELOCATING+  __text =  .;}
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    ${RELOCATING+ *(.init)}
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    *(.text)
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    ${CONSTRUCTING+ ___CTOR_LIST__ = .;}
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    ${CONSTRUCTING+ LONG(___CTOR_END__ - ___CTOR_LIST__ - 2)}
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    ${CONSTRUCTING+ *(.ctors)}
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    ${CONSTRUCTING+ LONG(0);}
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    ${CONSTRUCTING+ ___CTOR_END__  = .;}
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    ${CONSTRUCTING+ ___DTOR_LIST__ = .;}
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    ${CONSTRUCTING+ LONG(___DTOR_END__ - ___DTOR_LIST__ - 2)}
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    ${CONSTRUCTING+ *(.dtors)}
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    ${CONSTRUCTING+ LONG(0)}
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    ${CONSTRUCTING+ ___DTOR_END__  = .;}
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    ${RELOCATING+ *(.fini)}
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    ${RELOCATING+  __etext =  .;}
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  } ${RELOCATING+ > ${TEXT_MEMORY}}
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  /* Global initialised variables.  */
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  .data :
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  {
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    ${RELOCATING+  __data  =  .;}
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    *(.data)
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    ${RELOCATING+  __edata  = .;}
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  } ${RELOCATING+ > ${DATA_MEMORY}}
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  /* Global uninitialised variables.  */
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  .bss : {
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    ${RELOCATING+ __bss  =  .;}
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    *(.bss)
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    *(COMMON)
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    ${RELOCATING+  __end  =  .;}
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  } ${RELOCATING+ > ${DATA_MEMORY}}
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  /* Heap.  */
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  .heap :
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  {
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    ${RELOCATING+ __heap  =  .;}
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    ${RELOCATING+ . += __HEAP_SIZE};
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  } ${RELOCATING+ > ${DATA_MEMORY}}
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  /* Stack (grows upward).  */
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  .stack :
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  {
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    ${RELOCATING+ __stack  =  .;}
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    *(.stack)
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    ${RELOCATING+ .  =  . + __STACK_SIZE};
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  } ${RELOCATING+ > ${DATA_MEMORY}}
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  .stab 0 ${RELOCATING+(NOLOAD)} :
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  {
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    [ .stab ]
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  }
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  .stabstr 0 ${RELOCATING+(NOLOAD)} :
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  {
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    [ .stabstr ]
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  }
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}
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EOF

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