53 lines
2.4 KiB
Python
53 lines
2.4 KiB
Python
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# Linker Script for National Semiconductor's CR16C-ELF32.
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test -z "$ENTRY" && ENTRY=_start
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cat <<EOF
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/* Example Linker Script for linking NS CR16C or CR16CPlus
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elf32 files, which were compiled with either the near data
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model or the default data model. */
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/* Force the entry point to be entered in the output file as
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an undefined symbol. This is needed in case the entry point
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(which is not called explicitly) is in an archive (which is
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the usual case). */
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EXTERN(${ENTRY})
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ENTRY(${ENTRY})
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MEMORY
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{
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near_rom : ORIGIN = 0x4, LENGTH = 512K - 4
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near_ram : ORIGIN = 512K, LENGTH = 512K - 64K
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rom : ORIGIN = 1M, LENGTH = 3M
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ram : ORIGIN = 4M, LENGTH = 10M
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}
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SECTIONS
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{
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/* The heap is located in near memory, to suit both the near and
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default data models. The heap and stack are aligned to the bus
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width, as a speed optimization for accessing data located
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there. The alignment to 4 bytes is compatible for both the CR16C
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bus width (2 bytes) and CR16CPlus bus width (4 bytes). */
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.text : { __TEXT_START = .; *(.text) __TEXT_END = .; } > rom
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.rdata : { __RDATA_START = .; *(.rdata_4) *(.rdata_2) *(.rdata_1) __RDATA_END = .; } > near_rom
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.ctor ALIGN(4) : { __CTOR_LIST = .; *(.ctors) __CTOR_END = .; } > near_rom
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.dtor ALIGN(4) : { __DTOR_LIST = .; *(.dtors) __DTOR_END = .; } > near_rom
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.data : { __DATA_START = .; *(.data_4) *(.data_2) *(.data_1) *(.data) __DATA_END = .; } > ram AT > rom
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.bss (NOLOAD) : { __BSS_START = .; *(.bss_4) *(.bss_2) *(.bss_1) *(.bss) *(COMMON) __BSS_END = .; } > ram
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.nrdata : { __NRDATA_START = .; *(.nrdat_4) *(.nrdat_2) *(.nrdat_1) __NRDATA_END = .; } > near_rom
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.ndata : { __NDATA_START = .; *(.ndata_4) *(.ndata_2) *(.ndata_1) __NDATA_END = .; } > near_ram AT > rom
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.nbss (NOLOAD) : { __NBSS_START = .; *(.nbss_4) *(.nbss_2) *(.nbss_1) *(.ncommon) __NBSS_END = .; } > near_ram
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.heap : { . = ALIGN(4); __HEAP_START = .; . += 0x2000; __HEAP_MAX = .; } > near_ram
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.stack : { . = ALIGN(4); . += 0x6000; __STACK_START = .; } > ram
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.istack : { . = ALIGN(2); . += 0x100; __ISTACK_START = .; } > ram
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}
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__DATA_IMAGE_START = LOADADDR(.data);
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__NDATA_IMAGE_START = LOADADDR(.ndata);
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EOF
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