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annotate packages/hal/powerpc/arch/current/src/powerpc.ld @ 136:a9ac27ec7abc ecos-sw-2000-11-17

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Merge from eCos master repository on 2000-11-17-18:24:25-GMT
author jlarmour
date Fri, 17 Nov 2000 23:16:43 +0000
parents d2f49caf9e38
children f0e3fb000de8
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1 /*==========================================================================
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2 //
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3 // powerpc.ld
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4 //
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5 // Linker script for PowerPC
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6 //
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7 //==========================================================================
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8 //####COPYRIGHTBEGIN####
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9 //
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10 // -------------------------------------------
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11 // The contents of this file are subject to the Red Hat eCos Public License
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12 // Version 1.1 (the "License"); you may not use this file except in
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13 // compliance with the License. You may obtain a copy of the License at
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14 // http://www.redhat.com/
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15 //
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16 // Software distributed under the License is distributed on an "AS IS"
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17 // basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
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18 // License for the specific language governing rights and limitations under
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19 // the License.
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20 //
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21 // The Original Code is eCos - Embedded Configurable Operating System,
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22 // released September 30, 1998.
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23 //
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24 // The Initial Developer of the Original Code is Red Hat.
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25 // Portions created by Red Hat are
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26 // Copyright (C) 1998, 1999, 2000 Red Hat, Inc.
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27 // All Rights Reserved.
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28 // -------------------------------------------
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29 //
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30 //####COPYRIGHTEND####
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31 //==========================================================================
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32 //#####DESCRIPTIONBEGIN####
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33 //
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34 // Author(s): jskov
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35 // Contributors:jskov
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36 // Date: 1999-01-18
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37 // Purpose: PowerPC Linker script
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38 //
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39 //####DESCRIPTIONEND####
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40 //
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41 //========================================================================*/
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42 STARTUP(vectors.o)
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43 ENTRY(__exception_reset)
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44 #ifdef EXTRAS
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45 INPUT(extras.o)
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46 #endif
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47 GROUP(libtarget.a libgcc.a)
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48
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49 #define ALIGN_LMA 8
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50 #define FOLLOWING(_section_) AT ((LOADADDR (_section_) + SIZEOF (_section_) + ALIGN_LMA - 1) & ~ (ALIGN_LMA - 1))
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51 #define LMA_EQ_VMA
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52 #define FORCE_OUTPUT . = .
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53
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54
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55 #define SECTIONS_BEGIN
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56
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57 #define SECTION_vectors(_region_, _vma_, _lma_) \
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58 .vectors _vma_ : _lma_ \
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59 { FORCE_OUTPUT; KEEP(*(.vectors)) } \
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60 > _region_
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61
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62 #define SECTION_text(_region_, _vma_, _lma_) \
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63 .text _vma_ : _lma_ \
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64 { _stext = .; \
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65 *(.text*) *(.gnu.warning) *(.gnu.linkonce*) *(.init) } \
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66 > _region_ \
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67 _etext = .; PROVIDE (etext = .);
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68
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69 #define SECTION_fini(_region_, _vma_, _lma_) \
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70 .fini _vma_ : _lma_ \
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71 { FORCE_OUTPUT; *(.fini) } \
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72 > _region_
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73
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74 #define SECTION_rodata1(_region_, _vma_, _lma_) \
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75 .rodata1 _vma_ : _lma_ \
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76 { FORCE_OUTPUT; *(.rodata1*) } \
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77 > _region_
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78
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79 #define SECTION_rodata(_region_, _vma_, _lma_) \
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80 .rodata _vma_ : _lma_ \
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81 { FORCE_OUTPUT; *(.rodata*) } \
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82 > _region_
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83
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84 #define SECTION_fixup(_region_, _vma_, _lma_) \
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85 .fixup _vma_ : _lma_ \
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86 { __FIXUP_START__ = ABSOLUTE(.); *(.fixup) __FIXUP_END__ = ABSOLUTE(.);}\
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87 > _region_
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88
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89 #define SECTION_gcc_except_table(_region_, _vma_, _lma_) \
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90 .gcc_except_table _vma_ : _lma_ \
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91 { __EXCEPT_START__ = ABSOLUTE(.); *(.gcc_except_table) \
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92 __EXCEPT_END__ = ABSOLUTE(.);} \
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93 > _region_
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94
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95 #define SECTION_data(_region_, _vma_, _lma_) \
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96 .data _vma_ : _lma_ \
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97 { __ram_data_start = ABSOLUTE(.); *(.data*) \
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98 __GOT1_START__ = ABSOLUTE(.); *(.got1) __GOT1_END__ = ABSOLUTE(.); \
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99 /* Put .ctors and .dtors next to the .got2 section, so that */ \
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100 /* the pointers get relocated with -mrelocatable. */ \
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101 . = ALIGN(8); __CTOR_LIST__ = ABSOLUTE(.); \
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102 KEEP(*(SORT(.ctors*))) __CTOR_END__ = ABSOLUTE(.); \
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103 __DTOR_LIST__ = ABSOLUTE(.); \
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104 KEEP(*(SORT(.dtors*))) __DTOR_END__ = ABSOLUTE(.); \
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105 . = ALIGN(8); \
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106 KEEP(*( SORT (.ecos.table.*))) ; \
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107 __GOT2_START__ = ABSOLUTE(.); *(.got2) __GOT2_END__ = ABSOLUTE(.); \
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108 __GOT_START = ABSOLUTE(.); _GLOBAL_OFFSET_TABLE_ = ABSOLUTE(. + 32768); \
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109 _SDA_BASE_ = ABSOLUTE(.); *(.got.plt) *(.got) \
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110 __GOT_END__ = ABSOLUTE(.); *(.dynamic) \
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111 /* We want the small data sections together, so single-instruction */ \
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112 /* offsets can access them all, and initialized data all before */ \
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113 /* uninitialized, so we can shorten the on-disk segment size. */ \
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114 __SDATA_START__ = ABSOLUTE(.); *(.sdata.*) \
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115 __SDATA2_START__ = ABSOLUTE(.); *(.sdata2*) } \
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116 > _region_ \
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117 __rom_data_start = LOADADDR(.data); \
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118 __ram_data_end = .; PROVIDE(__ram_data_end = .); \
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119 _edata = .; PROVIDE (edata = .);
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120
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121 #define SECTION_sbss(_region_, _vma_, _lma_) \
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122 .sbss _vma_ : _lma_ \
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123 { __sbss_start = ABSOLUTE (.); \
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124 __SBSS_START__ = ABSOLUTE(.); *(.sbss.*) __SBSS_END__ = ABSOLUTE(.); \
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125 __SBSSx_START__ = ABSOLUTE(.); *(.sbss*) __SBSSx_END__ = ABSOLUTE(.);\
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126 *(.scommon*) \
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127 __sbss_end = ABSOLUTE (.); } \
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128 > _region_
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129
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130 #define SECTION_bss(_region_, _vma_, _lma_) \
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131 .bss _vma_ : _lma_ \
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132 { __bss_start = ABSOLUTE (.); \
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133 FORCE_OUTPUT; *(.dynbss*) *(.bss*) *(COMMON) \
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134 __bss_end = ABSOLUTE (.); } \
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135 > _region_
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136
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137 #define SECTIONS_END . = ALIGN(4); _end = .; PROVIDE (end = .);
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138
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139 #include <pkgconf/system.h>
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140 #include CYGHWR_MEMORY_LAYOUT_LDI
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142 // Define VSR and virtual tables to reside at fixed addresses.
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143 #include CYGBLD_HAL_TARGET_H
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144 hal_vsr_table = CYGHWR_HAL_VSR_TABLE;
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145 hal_virtual_vector_table = CYGHWR_HAL_VIRTUAL_VECTOR_TABLE;