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0949843d NC |
1 | # Linker Script for National Semiconductor's CR16C-ELF32. |
2 | ||
3 | test -z "$ENTRY" && ENTRY=_start | |
4 | cat <<EOF | |
5 | ||
6 | /* Example Linker Script for linking NS CR16C or CR16CPlus | |
7 | elf32 files, which were compiled with either the near data | |
8 | model or the default data model. */ | |
9 | ||
10 | /* Force the entry point to be entered in the output file as | |
11 | an undefined symbol. This is needed in case the entry point | |
12 | (which is not called explicitly) is in an archive (which is | |
13 | the usual case). */ | |
14 | ||
b34c1498 NC |
15 | ${RELOCATING+EXTERN(${ENTRY})} |
16 | ${RELOCATING+ENTRY(${ENTRY})} | |
0949843d NC |
17 | |
18 | MEMORY | |
19 | { | |
20 | near_rom : ORIGIN = 0x4, LENGTH = 512K - 4 | |
21 | near_ram : ORIGIN = 512K, LENGTH = 512K - 64K | |
22 | rom : ORIGIN = 1M, LENGTH = 3M | |
23 | ram : ORIGIN = 4M, LENGTH = 10M | |
24 | } | |
25 | ||
26 | SECTIONS | |
27 | { | |
28 | /* The heap is located in near memory, to suit both the near and | |
29 | default data models. The heap and stack are aligned to the bus | |
30 | width, as a speed optimization for accessing data located | |
31 | there. The alignment to 4 bytes is compatible for both the CR16C | |
32 | bus width (2 bytes) and CR16CPlus bus width (4 bytes). */ | |
33 | ||
7ba29e2a NC |
34 | .text : { __TEXT_START = .; *(.text) __TEXT_END = .; } > rom |
35 | .rdata : { __RDATA_START = .; *(.rdata_4) *(.rdata_2) *(.rdata_1) __RDATA_END = .; } > near_rom | |
36 | .ctor ALIGN(4) : { __CTOR_LIST = .; *(.ctors) __CTOR_END = .; } > near_rom | |
37 | .dtor ALIGN(4) : { __DTOR_LIST = .; *(.dtors) __DTOR_END = .; } > near_rom | |
38 | .data : { __DATA_START = .; *(.data_4) *(.data_2) *(.data_1) *(.data) __DATA_END = .; } > ram AT > rom | |
39 | .bss (NOLOAD) : { __BSS_START = .; *(.bss_4) *(.bss_2) *(.bss_1) *(.bss) *(COMMON) __BSS_END = .; } > ram | |
40 | .nrdata : { __NRDATA_START = .; *(.nrdat_4) *(.nrdat_2) *(.nrdat_1) __NRDATA_END = .; } > near_rom | |
41 | .ndata : { __NDATA_START = .; *(.ndata_4) *(.ndata_2) *(.ndata_1) __NDATA_END = .; } > near_ram AT > rom | |
42 | .nbss (NOLOAD) : { __NBSS_START = .; *(.nbss_4) *(.nbss_2) *(.nbss_1) *(.ncommon) __NBSS_END = .; } > near_ram | |
43 | .heap (NOLOAD) : { . = ALIGN(4); __HEAP_START = .; . += 0x2000; __HEAP_MAX = .; } > near_ram | |
44 | .stack (NOLOAD) : { . = ALIGN(4); . += 0x6000; __STACK_START = .; } > ram | |
45 | .istack (NOLOAD) : { . = ALIGN(2); . += 0x100; __ISTACK_START = .; } > ram | |
0949843d NC |
46 | } |
47 | ||
48 | __DATA_IMAGE_START = LOADADDR(.data); | |
49 | __NDATA_IMAGE_START = LOADADDR(.ndata); | |
50 | ||
51 | EOF |