1 | /** |
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2 | * @file |
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3 | * |
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4 | * Derived from internal linker script of GNU ld (GNU Binutils) 2.18 for elf32ppc emulation. |
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5 | */ |
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6 | |
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7 | OUTPUT_FORMAT("elf32-powerpc", "elf32-powerpc", "elf32-powerpc") |
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8 | OUTPUT_ARCH(powerpc) |
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9 | ENTRY(start) |
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10 | |
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11 | INCLUDE linkcmds.memory |
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12 | |
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13 | SECTIONS |
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14 | { |
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15 | .text : { |
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16 | /* |
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17 | * BSP: Start of text section |
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18 | */ |
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19 | bsp_section_text_start = .; |
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20 | |
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21 | /* |
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22 | * BSP: System startup entry |
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23 | */ |
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24 | KEEP (*(.entry)) |
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25 | |
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26 | /* |
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27 | * BSP: Moved into .text from .init |
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28 | */ |
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29 | KEEP (*(.init)) |
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30 | |
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31 | *(.text .stub .text.* .gnu.linkonce.t.*) |
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32 | KEEP (*(.text.*personality*)) |
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33 | /* .gnu.warning sections are handled specially by elf32.em. */ |
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34 | *(.gnu.warning) |
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35 | *(.glink) |
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36 | |
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37 | /* |
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38 | * BSP: Special FreeBSD sysctl sections |
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39 | */ |
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40 | . = ALIGN (16); |
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41 | __start_set_sysctl_set = .; |
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42 | *(set_sysctl_*); |
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43 | __stop_set_sysctl_set = ABSOLUTE(.); |
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44 | *(set_domain_*); |
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45 | *(set_pseudo_*); |
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46 | |
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47 | /* |
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48 | * BSP: Moved into .text from .* |
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49 | */ |
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50 | *(.rodata .rodata.* .gnu.linkonce.r.*) |
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51 | *(.rodata1) |
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52 | *(.interp) |
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53 | *(.note.gnu.build-id) |
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54 | *(.hash) |
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55 | *(.gnu.hash) |
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56 | *(.dynsym) |
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57 | *(.dynstr) |
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58 | *(.gnu.version) |
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59 | *(.gnu.version_d) |
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60 | *(.gnu.version_r) |
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61 | *(.eh_frame_hdr) |
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62 | |
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63 | /* |
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64 | * BSP: Magic PPC stuff |
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65 | */ |
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66 | *(.PPC.*) |
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67 | |
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68 | /* |
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69 | * BSP: Required by cpukit/score/src/threadhandler.c |
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70 | */ |
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71 | PROVIDE (_fini = .); |
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72 | |
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73 | /* |
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74 | * BSP: Moved into .text from .fini |
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75 | */ |
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76 | KEEP (*(.fini)) |
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77 | |
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78 | . = ALIGN (bsp_section_align); |
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79 | |
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80 | PROVIDE (__etext = .); |
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81 | PROVIDE (_etext = .); |
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82 | PROVIDE (etext = .); |
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83 | } > ROM =0 |
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84 | |
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85 | .sdata2 : { |
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86 | PROVIDE (_SDA2_BASE_ = 32768); |
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87 | |
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88 | *(.sdata2 .sdata2.* .gnu.linkonce.s2.*) |
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89 | |
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90 | . = ALIGN (bsp_section_align); |
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91 | } > ROM =0 |
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92 | |
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93 | .sbss2 : { |
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94 | *(.sbss2 .sbss2.* .gnu.linkonce.sb2.*) |
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95 | |
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96 | . = ALIGN (bsp_section_align); |
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97 | |
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98 | /* |
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99 | * BSP: End of text section |
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100 | */ |
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101 | bsp_section_text_end = .; |
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102 | } > ROM =0 |
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103 | |
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104 | .data : AT (bsp_section_text_end) { |
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105 | /* |
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106 | * BSP: Start of data section |
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107 | */ |
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108 | bsp_section_data_start = .; |
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109 | |
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110 | /* |
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111 | * BSP: Reserve space for exception handler |
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112 | */ |
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113 | . = . + 0x180; |
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114 | |
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115 | /* |
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116 | * BSP: Moved into .data from .ctors |
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117 | */ |
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118 | /* gcc uses crtbegin.o to find the start of |
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119 | the constructors, so we make sure it is |
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120 | first. Because this is a wildcard, it |
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121 | doesn't matter if the user does not |
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122 | actually link against crtbegin.o; the |
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123 | linker won't look for a file to match a |
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124 | wildcard. The wildcard also means that it |
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125 | doesn't matter which directory crtbegin.o |
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126 | is in. */ |
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127 | KEEP (*crtbegin.o(.ctors)) |
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128 | KEEP (*crtbegin?.o(.ctors)) |
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129 | /* We don't want to include the .ctor section from |
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130 | the crtend.o file until after the sorted ctors. |
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131 | The .ctor section from the crtend file contains the |
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132 | end of ctors marker and it must be last */ |
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133 | KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o ) .ctors)) |
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134 | KEEP (*(SORT(.ctors.*))) |
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135 | KEEP (*(.ctors)) |
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136 | |
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137 | /* |
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138 | * BSP: Moved into .data from .dtors |
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139 | */ |
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140 | KEEP (*crtbegin.o(.dtors)) |
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141 | KEEP (*crtbegin?.o(.dtors)) |
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142 | KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o ) .dtors)) |
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143 | KEEP (*(SORT(.dtors.*))) |
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144 | KEEP (*(.dtors)) |
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145 | |
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146 | /* |
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147 | * BSP: Moved into .data from .* |
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148 | */ |
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149 | *(.tdata .tdata.* .gnu.linkonce.td.*) |
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150 | *(.tbss .tbss.* .gnu.linkonce.tb.*) *(.tcommon) |
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151 | *(.data1) |
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152 | KEEP (*(.eh_frame)) |
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153 | *(.gcc_except_table .gcc_except_table.*) |
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154 | KEEP (*(.jcr)) |
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155 | *(.data.rel.ro.local* .gnu.linkonce.d.rel.ro.local.*) *(.data.rel.ro* .gnu.linkonce.d.rel.ro.*) |
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156 | *(.fixup) |
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157 | *(.got1) |
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158 | *(.got2) |
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159 | *(.dynamic) |
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160 | *(.got) |
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161 | *(.plt) |
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162 | PROVIDE_HIDDEN (__preinit_array_start = .); |
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163 | KEEP (*(.preinit_array)) |
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164 | PROVIDE_HIDDEN (__preinit_array_end = .); |
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165 | PROVIDE_HIDDEN (__init_array_start = .); |
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166 | KEEP (*(SORT(.init_array.*))) |
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167 | KEEP (*(.init_array)) |
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168 | PROVIDE_HIDDEN (__init_array_end = .); |
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169 | PROVIDE_HIDDEN (__fini_array_start = .); |
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170 | KEEP (*(.fini_array)) |
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171 | KEEP (*(SORT(.fini_array.*))) |
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172 | PROVIDE_HIDDEN (__fini_array_end = .); |
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173 | |
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174 | *(.data .data.* .gnu.linkonce.d.*) |
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175 | KEEP (*(.gnu.linkonce.d.*personality*)) |
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176 | SORT(CONSTRUCTORS) |
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177 | |
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178 | . = ALIGN (bsp_section_align); |
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179 | } > RAM |
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180 | |
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181 | .sdata : { |
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182 | PROVIDE (_SDA_BASE_ = 32768); |
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183 | *(.sdata .sdata.* .gnu.linkonce.s.*) |
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184 | |
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185 | . = ALIGN (bsp_section_align); |
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186 | |
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187 | _edata = .; |
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188 | PROVIDE (edata = .); |
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189 | |
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190 | /* |
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191 | * BSP: End of data section |
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192 | */ |
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193 | bsp_section_data_end = .; |
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194 | } > RAM |
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195 | |
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196 | .sbss : { |
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197 | /* |
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198 | * BSP: Start of bss section |
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199 | */ |
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200 | bsp_section_bss_start = .; |
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201 | |
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202 | __bss_start = .; |
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203 | |
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204 | PROVIDE (__sbss_start = .); PROVIDE (___sbss_start = .); |
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205 | *(.scommon) |
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206 | *(.dynsbss) |
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207 | *(.sbss .sbss.* .gnu.linkonce.sb.*) |
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208 | PROVIDE (__sbss_end = .); PROVIDE (___sbss_end = .); |
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209 | |
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210 | . = ALIGN (bsp_section_align); |
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211 | } > RAM |
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212 | |
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213 | .bss : { |
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214 | *(COMMON) |
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215 | *(.dynbss) |
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216 | *(.bss .bss.* .gnu.linkonce.b.*) |
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217 | |
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218 | . = ALIGN (bsp_section_align); |
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219 | |
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220 | __end = .; |
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221 | _end = .; |
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222 | PROVIDE (end = .); |
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223 | |
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224 | /* |
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225 | * BSP: End of bss section |
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226 | */ |
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227 | bsp_section_bss_end = .; |
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228 | } > RAM |
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229 | |
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230 | /* Stabs debugging sections. */ |
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231 | .stab 0 : { *(.stab) } |
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232 | .stabstr 0 : { *(.stabstr) } |
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233 | .stab.excl 0 : { *(.stab.excl) } |
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234 | .stab.exclstr 0 : { *(.stab.exclstr) } |
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235 | .stab.index 0 : { *(.stab.index) } |
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236 | .stab.indexstr 0 : { *(.stab.indexstr) } |
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237 | .comment 0 : { *(.comment) } |
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238 | /* DWARF debug sections. |
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239 | Symbols in the DWARF debugging sections are relative to the beginning |
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240 | of the section so we begin them at 0. */ |
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241 | /* DWARF 1 */ |
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242 | .debug 0 : { *(.debug) } |
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243 | .line 0 : { *(.line) } |
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244 | /* GNU DWARF 1 extensions */ |
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245 | .debug_srcinfo 0 : { *(.debug_srcinfo) } |
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246 | .debug_sfnames 0 : { *(.debug_sfnames) } |
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247 | /* DWARF 1.1 and DWARF 2 */ |
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248 | .debug_aranges 0 : { *(.debug_aranges) } |
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249 | .debug_pubnames 0 : { *(.debug_pubnames) } |
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250 | /* DWARF 2 */ |
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251 | .debug_info 0 : { *(.debug_info .gnu.linkonce.wi.*) } |
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252 | .debug_abbrev 0 : { *(.debug_abbrev) } |
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253 | .debug_line 0 : { *(.debug_line) } |
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254 | .debug_frame 0 : { *(.debug_frame) } |
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255 | .debug_str 0 : { *(.debug_str) } |
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256 | .debug_loc 0 : { *(.debug_loc) } |
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257 | .debug_macinfo 0 : { *(.debug_macinfo) } |
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258 | /* SGI/MIPS DWARF 2 extensions */ |
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259 | .debug_weaknames 0 : { *(.debug_weaknames) } |
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260 | .debug_funcnames 0 : { *(.debug_funcnames) } |
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261 | .debug_typenames 0 : { *(.debug_typenames) } |
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262 | .debug_varnames 0 : { *(.debug_varnames) } |
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263 | /* DWARF 3 */ |
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264 | .debug_pubtypes 0 : { *(.debug_pubtypes) } |
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265 | .debug_ranges 0 : { *(.debug_ranges) } |
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266 | .gnu.attributes 0 : { KEEP (*(.gnu.attributes)) } |
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267 | |
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268 | /DISCARD/ : { |
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269 | *(.note.GNU-stack) *(.gnu_debuglink) |
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270 | } |
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271 | |
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272 | /* |
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273 | * BSP: Catch all unknown sections |
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274 | */ |
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275 | .nirvana : { |
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276 | *(*) |
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277 | } > NIRVANA |
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278 | } |
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