1 | /* The following TEXT start address leaves space for the monitor |
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2 | workspace. This linker script links ISA64r2 programs for use with the |
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3 | simulator. We set the ISA explicitly so that we can link objects of |
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4 | different ISAs that are subsets of ISA64r2 but are not extensions of |
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5 | each other (e.g., MIPS32r2 and MIPS64). |
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6 | |
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7 | It differs from mti64.ld by using the elf64 ABI targets instead of the |
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8 | elf32 ABI targets in OUTPUT_FORMAT. */ |
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9 | |
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10 | ENTRY(_start) |
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11 | OUTPUT_ARCH("mips:isa64r2") |
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12 | OUTPUT_FORMAT("elf64-tradlittlemips", "elf64-tradbigmips", "elf64-tradlittlemips") |
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13 | GROUP(-lc -lidt -lgcc) |
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14 | SEARCH_DIR(.) |
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15 | __DYNAMIC = 0; |
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16 | STARTUP(crt0.o) |
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17 | |
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18 | /* |
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19 | * Allocate the stack to be at the top of memory, since the stack |
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20 | * grows down |
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21 | */ |
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22 | PROVIDE (__stack = 0); |
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23 | /* PROVIDE (__global = 0); */ |
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24 | |
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25 | /* |
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26 | * Initalize some symbols to be zero so we can reference them in the |
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27 | * crt0 without core dumping. These functions are all optional, but |
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28 | * we do this so we can have our crt0 always use them if they exist. |
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29 | * This is so BSPs work better when using the crt0 installed with gcc. |
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30 | * We have to initalize them twice, so we multiple object file |
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31 | * formats, as some prepend an underscore. |
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32 | */ |
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33 | PROVIDE (hardware_exit_hook = 0); |
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34 | PROVIDE (hardware_hazard_hook = 0); |
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35 | PROVIDE (hardware_init_hook = 0); |
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36 | PROVIDE (software_init_hook = 0); |
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37 | |
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38 | SECTIONS |
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39 | { |
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40 | . = 0xFFFFFFFF80020000; |
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41 | .text : { |
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42 | _ftext = . ; |
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43 | PROVIDE (eprol = .); |
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44 | *(.text) |
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45 | *(.text.*) |
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46 | *(.gnu.linkonce.t.*) |
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47 | *(.mips16.fn.*) |
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48 | *(.mips16.call.*) |
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49 | } |
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50 | .init : { |
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51 | KEEP (*(.init)) |
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52 | } |
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53 | .fini : { |
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54 | KEEP (*(.fini)) |
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55 | } |
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56 | .rel.sdata : { |
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57 | PROVIDE (__runtime_reloc_start = .); |
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58 | *(.rel.sdata) |
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59 | PROVIDE (__runtime_reloc_stop = .); |
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60 | } |
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61 | PROVIDE (etext = .); |
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62 | _etext = .; |
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63 | |
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64 | .eh_frame_hdr : { *(.eh_frame_hdr) } |
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65 | .eh_frame : { KEEP (*(.eh_frame)) } |
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66 | .gcc_except_table : { *(.gcc_except_table) } |
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67 | .jcr : { KEEP (*(.jcr)) } |
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68 | .ctors : |
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69 | { |
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70 | /* gcc uses crtbegin.o to find the start of |
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71 | the constructors, so we make sure it is |
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72 | first. Because this is a wildcard, it |
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73 | doesn't matter if the user does not |
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74 | actually link against crtbegin.o; the |
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75 | linker won't look for a file to match a |
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76 | wildcard. The wildcard also means that it |
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77 | doesn't matter which directory crtbegin.o |
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78 | is in. */ |
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79 | |
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80 | KEEP (*crtbegin.o(.ctors)) |
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81 | |
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82 | /* We don't want to include the .ctor section from |
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83 | from the crtend.o file until after the sorted ctors. |
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84 | The .ctor section from the crtend file contains the |
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85 | end of ctors marker and it must be last */ |
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86 | |
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87 | KEEP (*(EXCLUDE_FILE (*crtend.o) .ctors)) |
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88 | KEEP (*(SORT(.ctors.*))) |
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89 | KEEP (*(.ctors)) |
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90 | } |
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91 | |
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92 | .dtors : |
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93 | { |
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94 | KEEP (*crtbegin.o(.dtors)) |
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95 | KEEP (*(EXCLUDE_FILE (*crtend.o) .dtors)) |
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96 | KEEP (*(SORT(.dtors.*))) |
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97 | KEEP (*(.dtors)) |
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98 | } |
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99 | |
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100 | . = .; |
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101 | .MIPS.abiflags : { |
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102 | __MIPS_abiflags_start = .; |
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103 | *(.MIPS.abiflags) |
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104 | __MIPS_abiflags_end = .; |
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105 | } |
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106 | .rodata : { |
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107 | *(.rdata) |
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108 | *(.rodata) |
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109 | *(.rodata.*) |
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110 | *(.gnu.linkonce.r.*) |
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111 | } |
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112 | _fdata = ALIGN(16); |
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113 | .data : { |
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114 | *(.data) |
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115 | *(.data.*) |
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116 | *(.gnu.linkonce.d.*) |
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117 | } |
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118 | . = ALIGN(8); |
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119 | _gp = . + 0x8000; |
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120 | __global = _gp; |
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121 | .lit8 : { |
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122 | *(.lit8) |
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123 | } |
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124 | .lit4 : { |
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125 | *(.lit4) |
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126 | } |
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127 | .sdata : { |
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128 | *(.sdata) |
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129 | *(.sdata.*) |
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130 | *(.gnu.linkonce.s.*) |
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131 | } |
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132 | . = ALIGN(4); |
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133 | PROVIDE (edata = .); |
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134 | _edata = .; |
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135 | _fbss = .; |
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136 | .sbss : { |
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137 | *(.sbss) |
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138 | *(.sbss.*) |
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139 | *(.gnu.linkonce.sb.*) |
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140 | *(.scommon) |
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141 | } |
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142 | .bss : { |
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143 | _bss_start = . ; |
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144 | *(.bss) |
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145 | *(.bss.*) |
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146 | *(.gnu.linkonce.b.*) |
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147 | *(COMMON) |
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148 | } |
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149 | |
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150 | . = ALIGN(4); |
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151 | PROVIDE (end = .); |
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152 | _end = .; |
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153 | |
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154 | /* DWARF debug sections. |
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155 | Symbols in the DWARF debugging sections are relative to |
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156 | the beginning of the section so we begin them at 0. */ |
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157 | |
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158 | /* DWARF 1 */ |
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159 | .debug 0 : { *(.debug) } |
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160 | .line 0 : { *(.line) } |
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161 | |
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162 | /* GNU DWARF 1 extensions */ |
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163 | .debug_srcinfo 0 : { *(.debug_srcinfo) } |
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164 | .debug_sfnames 0 : { *(.debug_sfnames) } |
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165 | |
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166 | /* DWARF 1.1 and DWARF 2 */ |
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167 | .debug_aranges 0 : { *(.debug_aranges) } |
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168 | .debug_pubnames 0 : { *(.debug_pubnames) } |
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169 | |
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170 | /* DWARF 2 */ |
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171 | .debug_info 0 : { *(.debug_info) } |
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172 | .debug_abbrev 0 : { *(.debug_abbrev) } |
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173 | .debug_line 0 : { *(.debug_line) } |
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174 | .debug_frame 0 : { *(.debug_frame) } |
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175 | .debug_str 0 : { *(.debug_str) } |
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176 | .debug_loc 0 : { *(.debug_loc) } |
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177 | .debug_macinfo 0 : { *(.debug_macinfo) } |
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178 | .debug_ranges 0 : { *(.debug_ranges) } |
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179 | |
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180 | /* SGI/MIPS DWARF 2 extensions */ |
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181 | .debug_weaknames 0 : { *(.debug_weaknames) } |
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182 | .debug_funcnames 0 : { *(.debug_funcnames) } |
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183 | .debug_typenames 0 : { *(.debug_typenames) } |
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184 | .debug_varnames 0 : { *(.debug_varnames) } |
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185 | |
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186 | /* Special sections generated by gcc */ |
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187 | /* Newer GNU linkers strip by default */ |
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188 | .mdebug.abi32 0 : { KEEP(*(.mdebug.abi32)) } |
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189 | .mdebug.abiN32 0 : { KEEP(*(.mdebug.abiN32)) } |
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190 | .mdebug.abi64 0 : { KEEP(*(.mdebug.abi64)) } |
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191 | .mdebug.abiO64 0 : { KEEP(*(.mdebug.abiO64)) } |
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192 | .mdebug.eabi32 0 : { KEEP(*(.mdebug.eabi32)) } |
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193 | .mdebug.eabi64 0 : { KEEP(*(.mdebug.eabi64)) } |
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194 | .gcc_compiled_long32 0 : { KEEP(*(.gcc_compiled_long32)) } |
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195 | .gcc_compiled_long64 0 : { KEEP(*(.gcc_compiled_long64)) } |
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196 | } |
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