[cb585c3] | 1 | /* linkcmds |
---|
| 2 | * |
---|
| 3 | * $Id$ |
---|
| 4 | */ |
---|
| 5 | |
---|
| 6 | OUTPUT_ARCH(sparc) |
---|
| 7 | __DYNAMIC = 0; |
---|
| 8 | |
---|
| 9 | /* |
---|
| 10 | * The memory map looks like this: |
---|
| 11 | * +--------------------+ <- low memory |
---|
| 12 | * | .text | |
---|
| 13 | * | etext | |
---|
| 14 | * | ctor list | the ctor and dtor lists are for |
---|
| 15 | * | dtor list | C++ support |
---|
| 16 | * | _endtext | |
---|
| 17 | * +--------------------+ |
---|
| 18 | * | .data | initialized data goes here |
---|
| 19 | * | _sdata | |
---|
| 20 | * | _edata | |
---|
| 21 | * +--------------------+ |
---|
| 22 | * | .bss | |
---|
| 23 | * | __bss_start | start of bss, cleared by crt0 |
---|
| 24 | * | _end | start of heap, used by sbrk() |
---|
| 25 | * +--------------------+ |
---|
| 26 | * | heap space | |
---|
| 27 | * | _ENDHEAP | |
---|
| 28 | * | stack space | |
---|
| 29 | * | __stack | top of stack |
---|
| 30 | * +--------------------+ <- high memory |
---|
| 31 | */ |
---|
| 32 | |
---|
| 33 | |
---|
| 34 | /* |
---|
| 35 | * User modifiable values: |
---|
| 36 | * |
---|
| 37 | * _CLOCK_SPEED in Mhz (used to program the counter/timers) |
---|
| 38 | * |
---|
[b73e57b] | 39 | * _PROM_SIZE size of PROM (permissible values are 128K, 256K, |
---|
| 40 | * 512K, 1M, 2M, 4M, 8M and 16M) |
---|
[cb585c3] | 41 | * _RAM_SIZE size of RAM (permissible values are 256K, 512K, |
---|
[b73e57b] | 42 | * 1M, 2M, 4M, 8M, 16M, and 32M) |
---|
[cb585c3] | 43 | * |
---|
| 44 | */ |
---|
| 45 | |
---|
[b73e57b] | 46 | /* Default values, can be overridden */ |
---|
[cb585c3] | 47 | |
---|
[b73e57b] | 48 | _PROM_SIZE = 2M; |
---|
| 49 | _RAM_SIZE = 4M; |
---|
[cb585c3] | 50 | |
---|
| 51 | _RAM_START = 0x02000000; |
---|
| 52 | _RAM_END = _RAM_START + _RAM_SIZE; |
---|
| 53 | |
---|
| 54 | _PROM_START = 0x00000000; |
---|
| 55 | _PROM_END = _PROM_START + _PROM_SIZE; |
---|
| 56 | |
---|
[b73e57b] | 57 | /* |
---|
| 58 | * Alternate names without leading _. |
---|
| 59 | */ |
---|
| 60 | |
---|
| 61 | PROM_START = _PROM_START; |
---|
| 62 | PROM_SIZE = _PROM_SIZE; |
---|
| 63 | PROM_END = _PROM_END; |
---|
| 64 | |
---|
| 65 | RAM_START = _RAM_START; |
---|
| 66 | RAM_SIZE = _RAM_SIZE; |
---|
| 67 | RAM_END = _RAM_END; |
---|
| 68 | |
---|
[cb585c3] | 69 | /* |
---|
| 70 | * Base address of the on-CPU peripherals |
---|
| 71 | */ |
---|
| 72 | |
---|
| 73 | _ERC32_MEC = 0x01f80000; |
---|
[7782f9fc] | 74 | ERC32_MEC = 0x01f80000; |
---|
[cb585c3] | 75 | |
---|
[b73e57b] | 76 | /* these are the maximum values */ |
---|
| 77 | |
---|
[cb585c3] | 78 | MEMORY |
---|
| 79 | { |
---|
[b73e57b] | 80 | rom : ORIGIN = 0x00000000, LENGTH = 16 |
---|
| 81 | ram : ORIGIN = 0x02000000, LENGTH = 32M |
---|
[cb585c3] | 82 | } |
---|
| 83 | |
---|
| 84 | /* |
---|
| 85 | * stick everything in ram (of course) |
---|
| 86 | */ |
---|
| 87 | SECTIONS |
---|
| 88 | { |
---|
| 89 | .text : |
---|
| 90 | { |
---|
| 91 | CREATE_OBJECT_SYMBOLS |
---|
| 92 | text_start = .; |
---|
| 93 | _text_start = .; |
---|
| 94 | *(.text) |
---|
[f86ec42] | 95 | . = ALIGN (16); |
---|
| 96 | |
---|
| 97 | *(.eh_fram) |
---|
| 98 | . = ALIGN (16); |
---|
| 99 | |
---|
| 100 | /* |
---|
| 101 | * C++ constructors |
---|
| 102 | */ |
---|
| 103 | __CTOR_LIST__ = .; |
---|
| 104 | LONG((__CTOR_END__ - __CTOR_LIST__) / 4 - 2) |
---|
| 105 | *(.ctors) |
---|
| 106 | LONG(0) |
---|
| 107 | __CTOR_END__ = .; |
---|
| 108 | __DTOR_LIST__ = .; |
---|
| 109 | LONG((__DTOR_END__ - __DTOR_LIST__) / 4 - 2) |
---|
| 110 | *(.dtors) |
---|
| 111 | LONG(0) |
---|
| 112 | __DTOR_END__ = .; |
---|
[cb585c3] | 113 | etext = ALIGN(0x10); |
---|
| 114 | _etext = .; |
---|
| 115 | __CTOR_LIST__ = .; |
---|
| 116 | LONG((__CTOR_END__ - __CTOR_LIST__) / 4 - 2) |
---|
| 117 | *(.ctors) |
---|
| 118 | LONG(0) |
---|
| 119 | __CTOR_END__ = .; |
---|
| 120 | __DTOR_LIST__ = .; |
---|
| 121 | LONG((__DTOR_END__ - __DTOR_LIST__) / 4 - 2) |
---|
| 122 | *(.dtors) |
---|
| 123 | LONG(0) |
---|
| 124 | __DTOR_END__ = .; |
---|
| 125 | *(.lit) |
---|
| 126 | *(.shdata) |
---|
| 127 | _endtext = .; |
---|
| 128 | } > ram |
---|
[1ca488b] | 129 | .dynamic : { *(.dynamic) } >ram |
---|
| 130 | .got : { *(.got) } >ram |
---|
| 131 | .plt : { *(.plt) } >ram |
---|
| 132 | .hash : { *(.hash) } >ram |
---|
| 133 | .dynrel : { *(.dynrel) } >ram |
---|
| 134 | .dynsym : { *(.dynsym) } >ram |
---|
| 135 | .dynstr : { *(.dynstr) } >ram |
---|
| 136 | .hash : { *(.hash) } >ram |
---|
[cb585c3] | 137 | .data : |
---|
| 138 | { |
---|
| 139 | data_start = .; |
---|
| 140 | _data_start = .; |
---|
| 141 | _sdata = . ; |
---|
| 142 | *(.data) |
---|
| 143 | CONSTRUCTORS |
---|
| 144 | edata = ALIGN(0x10); |
---|
| 145 | _edata = .; |
---|
| 146 | } > ram |
---|
| 147 | .shbss : |
---|
| 148 | { |
---|
| 149 | *(.shbss) |
---|
| 150 | } > ram |
---|
| 151 | .bss : |
---|
| 152 | { |
---|
| 153 | __bss_start = ALIGN(0x8); |
---|
| 154 | _bss_start = .; |
---|
| 155 | bss_start = .; |
---|
| 156 | *(.bss) |
---|
| 157 | *(COMMON) |
---|
| 158 | end = .; |
---|
| 159 | _end = ALIGN(0x8); |
---|
| 160 | __end = ALIGN(0x8); |
---|
| 161 | } > ram |
---|
| 162 | .stab . (NOLOAD) : |
---|
| 163 | { |
---|
| 164 | [ .stab ] |
---|
| 165 | } |
---|
| 166 | .stabstr . (NOLOAD) : |
---|
| 167 | { |
---|
| 168 | [ .stabstr ] |
---|
| 169 | } |
---|
| 170 | } |
---|