[444] | 1 | /* The following TEXT start address leaves space for the monitor |
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| 2 | workspace. */ |
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| 3 | |
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| 4 | ENTRY(_start) |
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| 5 | STARTUP(crt0.o) |
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| 6 | OUTPUT_FORMAT("elf32-bigmips", "elf32-bigmips", "elf32-littlemips") |
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| 7 | GROUP(-lc -lpmon -lgcc) |
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| 8 | SEARCH_DIR(.) |
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| 9 | __DYNAMIC = 0; |
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| 10 | |
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| 11 | /* |
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| 12 | * Allocate the stack to be at the top of memory, since the stack |
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| 13 | * grows down |
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| 14 | */ |
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| 15 | PROVIDE (__stack = 0); |
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| 16 | /* PROVIDE (__global = 0); */ |
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| 17 | |
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| 18 | /* |
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| 19 | * Initalize some symbols to be zero so we can reference them in the |
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| 20 | * crt0 without core dumping. These functions are all optional, but |
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| 21 | * we do this so we can have our crt0 always use them if they exist. |
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| 22 | * This is so BSPs work better when using the crt0 installed with gcc. |
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| 23 | * We have to initalize them twice, so we multiple object file |
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| 24 | * formats, as some prepend an underscore. |
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| 25 | */ |
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| 26 | PROVIDE (hardware_exit_hook = 0); |
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| 27 | PROVIDE (hardware_hazard_hook = 0); |
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| 28 | PROVIDE (hardware_init_hook = 0); |
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| 29 | PROVIDE (software_init_hook = 0); |
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| 30 | |
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| 31 | SECTIONS |
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| 32 | { |
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| 33 | . = 0xA0100000; |
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| 34 | .text : { |
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| 35 | _ftext = . ; |
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| 36 | KEEP (*(.init)) |
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| 37 | eprol = .; |
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| 38 | *(.text) |
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| 39 | *(.text.*) |
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| 40 | *(.gnu.linkonce.t.*) |
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| 41 | *(.mips16.fn.*) |
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| 42 | *(.mips16.call.*) |
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| 43 | PROVIDE (__runtime_reloc_start = .); |
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| 44 | *(.rel.sdata) |
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| 45 | PROVIDE (__runtime_reloc_stop = .); |
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| 46 | KEEP (*(.fini)) |
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| 47 | etext = .; |
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| 48 | _etext = .; |
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| 49 | } |
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| 50 | |
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| 51 | .eh_frame_hdr : { *(.eh_frame_hdr) } |
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| 52 | .eh_frame : { KEEP (*(.eh_frame)) } |
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| 53 | .gcc_except_table : { *(.gcc_except_table) } |
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| 54 | .jcr : { KEEP (*(.jcr)) } |
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| 55 | .ctors : |
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| 56 | { |
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| 57 | /* gcc uses crtbegin.o to find the start of |
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| 58 | the constructors, so we make sure it is |
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| 59 | first. Because this is a wildcard, it |
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| 60 | doesn't matter if the user does not |
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| 61 | actually link against crtbegin.o; the |
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| 62 | linker won't look for a file to match a |
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| 63 | wildcard. The wildcard also means that it |
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| 64 | doesn't matter which directory crtbegin.o |
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| 65 | is in. */ |
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| 66 | |
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| 67 | KEEP (*crtbegin.o(.ctors)) |
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| 68 | |
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| 69 | /* We don't want to include the .ctor section from |
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| 70 | from the crtend.o file until after the sorted ctors. |
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| 71 | The .ctor section from the crtend file contains the |
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| 72 | end of ctors marker and it must be last */ |
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| 73 | |
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| 74 | KEEP (*(EXCLUDE_FILE (*crtend.o) .ctors)) |
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| 75 | KEEP (*(SORT(.ctors.*))) |
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| 76 | KEEP (*(.ctors)) |
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| 77 | } |
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| 78 | |
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| 79 | .dtors : |
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| 80 | { |
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| 81 | KEEP (*crtbegin.o(.dtors)) |
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| 82 | KEEP (*(EXCLUDE_FILE (*crtend.o) .dtors)) |
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| 83 | KEEP (*(SORT(.dtors.*))) |
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| 84 | KEEP (*(.dtors)) |
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| 85 | } |
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| 86 | |
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| 87 | . = .; |
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| 88 | .rdata : { |
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| 89 | *(.rdata) |
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| 90 | *(.rodata) |
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| 91 | *(.rodata.*) |
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| 92 | *(.gnu.linkonce.r.*) |
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| 93 | } |
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| 94 | _fdata = ALIGN(16); |
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| 95 | .data : { |
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| 96 | *(.data) |
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| 97 | *(.data.*) |
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| 98 | *(.gnu.linkonce.d.*) |
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| 99 | } |
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| 100 | . = ALIGN(8); |
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| 101 | _gp = . + 0x8000; |
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| 102 | __global = _gp; |
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| 103 | .lit8 : { |
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| 104 | *(.lit8) |
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| 105 | } |
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| 106 | .lit4 : { |
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| 107 | *(.lit4) |
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| 108 | } |
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| 109 | .sdata : { |
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| 110 | *(.sdata) |
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| 111 | *(.sdata.*) |
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| 112 | *(.gnu.linkonce.s.*) |
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| 113 | } |
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| 114 | . = ALIGN(4); |
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| 115 | edata = .; |
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| 116 | _edata = .; |
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| 117 | _fbss = .; |
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| 118 | .sbss : { |
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| 119 | *(.sbss) |
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| 120 | *(.sbss.*) |
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| 121 | *(.gnu.linkonce.sb.*) |
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| 122 | *(.scommon) |
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| 123 | } |
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| 124 | .bss : { |
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| 125 | _bss_start = . ; |
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| 126 | *(.bss) |
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| 127 | *(.bss.*) |
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| 128 | *(.gnu.linkonce.b.*) |
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| 129 | *(COMMON) |
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| 130 | } |
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| 131 | |
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| 132 | end = .; |
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| 133 | _end = .; |
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| 134 | |
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| 135 | /* DWARF debug sections. |
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| 136 | Symbols in the DWARF debugging sections are relative to |
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| 137 | the beginning of the section so we begin them at 0. */ |
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| 138 | |
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| 139 | /* DWARF 1 */ |
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| 140 | .debug 0 : { *(.debug) } |
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| 141 | .line 0 : { *(.line) } |
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| 142 | |
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| 143 | /* GNU DWARF 1 extensions */ |
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| 144 | .debug_srcinfo 0 : { *(.debug_srcinfo) } |
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| 145 | .debug_sfnames 0 : { *(.debug_sfnames) } |
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| 146 | |
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| 147 | /* DWARF 1.1 and DWARF 2 */ |
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| 148 | .debug_aranges 0 : { *(.debug_aranges) } |
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| 149 | .debug_pubnames 0 : { *(.debug_pubnames) } |
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| 150 | |
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| 151 | /* DWARF 2 */ |
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| 152 | .debug_info 0 : { *(.debug_info) } |
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| 153 | .debug_abbrev 0 : { *(.debug_abbrev) } |
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| 154 | .debug_line 0 : { *(.debug_line) } |
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| 155 | .debug_frame 0 : { *(.debug_frame) } |
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| 156 | .debug_str 0 : { *(.debug_str) } |
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| 157 | .debug_loc 0 : { *(.debug_loc) } |
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| 158 | .debug_macinfo 0 : { *(.debug_macinfo) } |
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| 159 | .debug_ranges 0 : { *(.debug_ranges) } |
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| 160 | |
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| 161 | /* SGI/MIPS DWARF 2 extensions */ |
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| 162 | .debug_weaknames 0 : { *(.debug_weaknames) } |
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| 163 | .debug_funcnames 0 : { *(.debug_funcnames) } |
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| 164 | .debug_typenames 0 : { *(.debug_typenames) } |
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| 165 | .debug_varnames 0 : { *(.debug_varnames) } |
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| 166 | } |
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