[44bb5cd0] | 1 | /* |
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| 2 | * Cogent CSB336 Linker script |
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| 3 | * |
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| 4 | * Copyright (c) 2004 by Cogent Computer Systems |
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| 5 | * Written by Jay Monkman <jtm@lopingdog.com> |
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| 6 | * |
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| 7 | * The license and distribution terms for this file may be |
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| 8 | * found in the file LICENSE in this distribution or at |
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| 9 | * |
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| 10 | * http://www.rtems.com/license/LICENSE. |
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| 11 | * |
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| 12 | * $Id$ |
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| 13 | */ |
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| 14 | OUTPUT_FORMAT("elf32-littlearm", "elf32-bigarm", |
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| 15 | "elf32-littlearm") |
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| 16 | OUTPUT_ARCH(arm) |
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| 17 | ENTRY(_start) |
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| 18 | /* SEARCH_DIR(/usr/local/rtems-arm-dev-tools/arm-rtems/lib); */ |
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| 19 | |
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| 20 | |
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| 21 | MEMORY { |
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| 22 | sdram : ORIGIN = 0x00000000, LENGTH = 4M |
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| 23 | } |
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| 24 | |
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| 25 | /* |
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| 26 | * Declare some sizes. |
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| 27 | */ |
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| 28 | |
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| 29 | /* The base for SDRAM is set to umon's APPRAMBASE */ |
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| 30 | _sdram_base = DEFINED(_sdram_base) ? _sdram_base : 0x0; |
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| 31 | _sdram_size = DEFINED(_sdram_size) ? _sdram_size : 4M; |
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| 32 | |
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| 33 | RamBase = _sdram_base; |
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| 34 | RamSize = _sdram_size; |
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| 35 | HeapSize = DEFINED(HeapSize) ? HeapSize : 0x0; |
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| 36 | |
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| 37 | _irq_stack_size = DEFINED(_irq_stack_size) ? _irq_stack_size : 0x1000; |
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| 38 | _fiq_stack_size = DEFINED(_fiq_stack_size) ? _fiq_stack_size : 0x400; |
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| 39 | _abt_stack_size = DEFINED(_abt_stack_size) ? _abt_stack_size : 0x400; |
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| 40 | _undef_stack_size = DEFINED(_undef_stack_size) ? _undef_stack_size : 0x400; |
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| 41 | _svc_stack_size = DEFINED(_svc_stack_size) ? _svc_stack_size : 0x1000; |
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| 42 | |
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| 43 | |
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| 44 | |
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| 45 | /* Do we need any of these for elf? |
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| 46 | __DYNAMIC = 0; */ |
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| 47 | |
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| 48 | SECTIONS |
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| 49 | { |
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| 50 | .base : |
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| 51 | { |
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| 52 | arm_exception_table = .; |
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| 53 | |
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| 54 | arm_reset_vect = .; /* 0x00 */ |
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| 55 | . += 4; |
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| 56 | |
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| 57 | arm_undef_vect = .; /* 0x04 */ |
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| 58 | . += 4; |
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| 59 | |
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| 60 | arm_swi_vect = .; /* 0x08 */ |
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| 61 | . += 4; |
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| 62 | |
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| 63 | arm_iabrt_vect = .; /* 0x0c */ |
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| 64 | . += 4; |
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| 65 | |
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| 66 | arm_dabrt_vect = .; /* 0x10 */ |
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| 67 | . += 4; |
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| 68 | |
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| 69 | /* no vector here */ |
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| 70 | . += 4; |
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| 71 | |
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| 72 | arm_irq_vect = .; /* 0x18 */ |
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| 73 | . += 4; |
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| 74 | |
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| 75 | arm_fiq_vect = .; /* 0x1c */ |
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| 76 | . += 4; |
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| 77 | /* FIXME: */ |
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| 78 | |
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| 79 | rtems_vector_table = .; |
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| 80 | . += (8 * 4); /* 8 ARM interrupts */ |
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| 81 | |
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| 82 | . = ALIGN (0x100); |
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| 83 | |
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| 84 | |
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| 85 | } > sdram |
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| 86 | |
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| 87 | .text : |
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| 88 | { |
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| 89 | . = 0x8000; |
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| 90 | _text_start = .; |
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| 91 | CREATE_OBJECT_SYMBOLS |
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| 92 | *(.text) |
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| 93 | *(.text.*) |
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| 94 | |
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| 95 | /* |
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| 96 | * Special FreeBSD sysctl sections. |
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| 97 | */ |
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| 98 | . = ALIGN (16); |
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| 99 | __start_set_sysctl_set = .; |
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| 100 | *(set_sysctl_*); |
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| 101 | __stop_set_sysctl_set = ABSOLUTE(.); |
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| 102 | *(set_domain_*); |
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| 103 | *(set_pseudo_*); |
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| 104 | |
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| 105 | /* .gnu.warning sections are handled specially by elf32.em. */ |
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| 106 | *(.gnu.warning) |
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| 107 | *(.gnu.linkonce.t*) |
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| 108 | *(.glue_7) |
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| 109 | *(.glue_7t) |
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| 110 | |
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| 111 | /* I think these come from the ld docs: */ |
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| 112 | ___CTOR_LIST__ = .; |
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| 113 | LONG((___CTOR_END__ - ___CTOR_LIST__) / 4 - 2) |
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| 114 | *(.ctors) |
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| 115 | LONG(0) |
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| 116 | ___CTOR_END__ = .; |
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| 117 | ___DTOR_LIST__ = .; |
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| 118 | LONG((___DTOR_END__ - ___DTOR_LIST__) / 4 - 2) |
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| 119 | *(.dtors) |
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| 120 | LONG(0) |
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| 121 | ___DTOR_END__ = .; |
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| 122 | |
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| 123 | _etext = .; |
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| 124 | PROVIDE (etext = .); |
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| 125 | } > sdram |
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| 126 | |
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| 127 | .init : |
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| 128 | { |
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| 129 | KEEP (*(.init)) |
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| 130 | } > sdram /*=0*/ |
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| 131 | |
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| 132 | .fini : |
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| 133 | { |
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| 134 | KEEP (*(.fini)) |
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| 135 | } > sdram /*=0*/ |
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| 136 | |
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| 137 | .data : |
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| 138 | { |
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| 139 | *(.data) |
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| 140 | *(.data.*) |
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| 141 | *(.gnu.linkonce.d*) |
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| 142 | *(.jcr) |
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| 143 | SORT(CONSTRUCTORS) |
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| 144 | _edata = .; |
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| 145 | } > sdram |
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| 146 | |
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| 147 | .eh_frame : { *(.eh_frame) } > sdram |
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| 148 | .data1 : { *(.data1) } > sdram |
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| 149 | .eh_frame : { *(.eh_frame) } > sdram |
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| 150 | .gcc_except_table : { *(.gcc_except_table*) } > sdram |
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| 151 | |
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| 152 | .rodata : |
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| 153 | { |
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| 154 | *(.rodata) |
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| 155 | *(.rodata.*) |
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| 156 | *(.gnu.linkonce.r*) |
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| 157 | } > sdram |
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| 158 | |
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| 159 | .bss : |
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| 160 | { |
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| 161 | __bss_start__ = .; |
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| 162 | _bss_start_ = .; |
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| 163 | _clear_start = .; |
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| 164 | *(.bss) |
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| 165 | *(.bss.*) |
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| 166 | *(.gnu.linkonce.b.*) |
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| 167 | *(COMMON) |
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| 168 | . = ALIGN(64); |
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| 169 | _clear_end = .; |
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| 170 | |
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| 171 | . = ALIGN (256); |
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| 172 | _abt_stack = .; |
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| 173 | . += _abt_stack_size; |
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| 174 | |
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| 175 | . = ALIGN (256); |
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| 176 | _undef_stack = .; |
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| 177 | . += _undef_stack_size; |
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| 178 | |
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| 179 | . = ALIGN (256); |
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| 180 | _irq_stack = .; |
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| 181 | . += _irq_stack_size; |
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| 182 | |
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| 183 | . = ALIGN (256); |
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| 184 | _fiq_stack = .; |
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| 185 | . += _fiq_stack_size; |
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| 186 | |
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| 187 | . = ALIGN (256); |
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| 188 | _svc_stack = .; |
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| 189 | . += _svc_stack_size; |
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| 190 | |
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| 191 | /* |
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| 192 | * Ideally, the MMU's translation table would be in SRAM. But we |
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| 193 | * don't have any. If we don't use more regions than TLB entries (64), |
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| 194 | * the lookup will only happen once for each region. |
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| 195 | */ |
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| 196 | . = ALIGN (16 * 1024); |
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| 197 | _ttbl_base = .; |
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| 198 | . += (16 * 1024); |
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| 199 | |
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| 200 | . = ALIGN (1024); |
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| 201 | _bss_free_start = .; |
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| 202 | WorkAreaBase = .; |
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| 203 | |
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| 204 | . = RamSize + RamBase - 1; |
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| 205 | __clear_end__ = .; |
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| 206 | __bss_end__ = .; |
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| 207 | _bss_end_ = .; |
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| 208 | _end = .; |
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| 209 | __end = .; |
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| 210 | |
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| 211 | } > sdram |
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| 212 | |
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| 213 | |
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| 214 | /* Debugging stuff follows? */ |
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| 215 | |
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| 216 | /* Stabs debugging sections. */ |
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| 217 | .stab 0 : { *(.stab) } |
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| 218 | .stabstr 0 : { *(.stabstr) } |
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| 219 | .stab.excl 0 : { *(.stab.excl) } |
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| 220 | .stab.exclstr 0 : { *(.stab.exclstr) } |
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| 221 | .stab.index 0 : { *(.stab.index) } |
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| 222 | .stab.indexstr 0 : { *(.stab.indexstr) } |
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| 223 | .comment 0 : { *(.comment) } |
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| 224 | /* DWARF debug sections. |
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| 225 | Symbols in the DWARF debugging sections are relative to the beginning |
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| 226 | of the section so we begin them at 0. */ |
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| 227 | /* DWARF 1 */ |
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| 228 | .debug 0 : { *(.debug) } |
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| 229 | .line 0 : { *(.line) } |
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| 230 | /* GNU DWARF 1 extensions */ |
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| 231 | .debug_srcinfo 0 : { *(.debug_srcinfo) } |
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| 232 | .debug_sfnames 0 : { *(.debug_sfnames) } |
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| 233 | /* DWARF 1.1 and DWARF 2 */ |
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| 234 | .debug_aranges 0 : { *(.debug_aranges) } |
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| 235 | .debug_pubnames 0 : { *(.debug_pubnames) } |
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| 236 | /* DWARF 2 */ |
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| 237 | .debug_info 0 : { *(.debug_info) } |
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| 238 | .debug_abbrev 0 : { *(.debug_abbrev) } |
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| 239 | .debug_line 0 : { *(.debug_line) } |
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| 240 | .debug_frame 0 : { *(.debug_frame) } |
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| 241 | .debug_str 0 : { *(.debug_str) } |
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| 242 | .debug_loc 0 : { *(.debug_loc) } |
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| 243 | .debug_macinfo 0 : { *(.debug_macinfo) } |
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| 244 | /* SGI/MIPS DWARF 2 extensions */ |
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| 245 | .debug_weaknames 0 : { *(.debug_weaknames) } |
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| 246 | .debug_funcnames 0 : { *(.debug_funcnames) } |
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| 247 | .debug_typenames 0 : { *(.debug_typenames) } |
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| 248 | .debug_varnames 0 : { *(.debug_varnames) } |
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| 249 | /*.stack 0x80000 : { _stack = .; *(.stack) }*/ |
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| 250 | /* These must appear regardless of . */ |
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| 251 | } |
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| 252 | |
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