| 1 | /* Example Linker Script for linking NS CRX elf32 files. */ | 
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| 2 | OUTPUT_FORMAT("elf32-crx") | 
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| 3 | OUTPUT_ARCH(crx) | 
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| 4 |  | 
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| 5 | /*  | 
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| 6 |  The libh.a library includes various CR default handlers. | 
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| 7 |  The libsim.a library includes low-level functions, which | 
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| 8 |  are used as an interface to communicate with the simulator. | 
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| 9 | */ | 
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| 10 | GROUP(-lc -lsim -lh -lgcc) | 
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| 11 |  | 
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| 12 | /* | 
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| 13 |  The next line forces the entry point (_start in this script) | 
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| 14 |  to be entered in the output file as an undefined symbol. | 
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| 15 |  It is needed in case the entry point is not called explicitly | 
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| 16 |  (which is the usual case) AND is in an archive. | 
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| 17 | */ | 
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| 18 | EXTERN(_start) | 
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| 19 | ENTRY(_start) | 
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| 20 |  | 
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| 21 | /* Define memory regions */ | 
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| 22 | MEMORY | 
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| 23 | { | 
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| 24 |   rom  : ORIGIN = 0x2,  LENGTH = 3M | 
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| 25 |   ram  : ORIGIN = 4M,   LENGTH = 10M | 
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| 26 | } | 
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| 27 |  | 
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| 28 | SECTIONS | 
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| 29 | { | 
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| 30 |   .init : | 
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| 31 |   {  | 
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| 32 |     __INIT_START = .;  | 
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| 33 |     KEEP (*(.init)) | 
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| 34 |     __INIT_END = .;  | 
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| 35 |   } > rom | 
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| 36 |  | 
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| 37 |   .fini : | 
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| 38 |   {  | 
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| 39 |     __FINI_START = .;  | 
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| 40 |     KEEP (*(.fini)) | 
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| 41 |     __FINI_END = .;  | 
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| 42 |   } > rom | 
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| 43 |  | 
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| 44 |   .jcr : | 
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| 45 |   {  | 
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| 46 |     KEEP (*(.jcr)) | 
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| 47 |   } > rom | 
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| 48 |  | 
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| 49 |   .text :  | 
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| 50 |   {  | 
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| 51 |     __TEXT_START = .;  | 
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| 52 |     *(.text) *(.text.*) *(.gnu.linkonce.t.*)  | 
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| 53 |     __TEXT_END = .;  | 
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| 54 |   } > rom | 
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| 55 |  | 
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| 56 |   .rdata :  | 
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| 57 |   { | 
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| 58 |      __RDATA_START = .;  | 
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| 59 |      *(.rdata_4) *(.rdata_2) *(.rdata_1) *(.rdata.*) *(.gnu.linkonce.r.*)  | 
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| 60 |      __RDATA_END = .;  | 
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| 61 |   } > rom | 
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| 62 |  | 
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| 63 |   .ctor ALIGN(4) :  | 
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| 64 |   {  | 
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| 65 |     __CTOR_START = .;  | 
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| 66 |     KEEP (*crtbegin*.o(.ctors)) | 
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| 67 |     KEEP (*(EXCLUDE_FILE (*crtend*.o) .ctors)) | 
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| 68 |     KEEP (*(SORT(.ctors.*))) | 
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| 69 |     KEEP (*(.ctors)) | 
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| 70 |     __CTOR_END = .;  | 
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| 71 |   } > rom | 
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| 72 |  | 
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| 73 |   .dtor ALIGN(4) :  | 
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| 74 |   {  | 
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| 75 |     __DTOR_START = .;  | 
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| 76 |     KEEP (*crtbegin*.o(.dtors)) | 
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| 77 |     KEEP (*(EXCLUDE_FILE (*crtend*.o) .dtors)) | 
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| 78 |     KEEP (*(SORT(.dtors.*))) | 
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| 79 |     KEEP (*(.dtors)) | 
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| 80 |     __DTOR_END = .;  | 
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| 81 |   } > rom | 
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| 82 |  | 
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| 83 |   .data :  | 
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| 84 |   { | 
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| 85 |     __DATA_START = .;  | 
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| 86 |     *(.data_4) *(.data_2) *(.data_1) *(.data) *(.data.*) *(.gnu.linkonce.d.*)  | 
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| 87 |     __DATA_END = .;  | 
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| 88 |   } > ram AT > rom | 
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| 89 |  | 
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| 90 |   .bss (NOLOAD) :  | 
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| 91 |   { | 
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| 92 |     __BSS_START = .;  | 
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| 93 |     *(.bss_4) *(.bss_2) *(.bss_1) *(.bss) *(COMMON) *(.bss.*) *(.gnu.linkonce.b.*)  | 
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| 94 |     __BSS_END = .;  | 
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| 95 |   } > ram | 
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| 96 |  | 
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| 97 | /* | 
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| 98 |  You may change the sizes of the following sections to fit the actual | 
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| 99 |  size your program requires. | 
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| 100 |  The heap and stack are aligned to the bus width, as a speed optimization | 
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| 101 |  for accessing data located there. | 
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| 102 | */ | 
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| 103 |   .heap :  | 
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| 104 |   {  | 
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| 105 |     . = ALIGN(4);  | 
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| 106 |     __HEAP_START = .;  | 
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| 107 |     . += 0x2000;  | 
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| 108 |     __HEAP_MAX = .;  | 
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| 109 |   } > ram | 
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| 110 |  | 
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| 111 |   .stack :  | 
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| 112 |   {  | 
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| 113 |     . = ALIGN(4);  | 
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| 114 |     . += 0x6000;  | 
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| 115 |     __STACK_START = .;  | 
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| 116 |   } > ram | 
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| 117 |  | 
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| 118 |   .istack :  | 
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| 119 |   {  | 
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| 120 |     . = ALIGN(4);  | 
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| 121 |     . += 0x100;  | 
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| 122 |     __ISTACK_START = .;  | 
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| 123 |   } > ram | 
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| 124 | } | 
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| 125 |  | 
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| 126 | __DATA_IMAGE_START = LOADADDR(.data); | 
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