| 1 | OUTPUT_FORMAT("elf32-mt", "elf32-mt", "elf32-mt") |
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| 2 | OUTPUT_ARCH(mt) |
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| 3 | ENTRY(__boot_start) |
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| 4 | |
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| 5 | /* Do we need any of these for elf? |
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| 6 | __DYNAMIC = 0; */ |
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| 7 | MEMORY |
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| 8 | { |
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| 9 | rom (rx) : ORIGIN = 0x000000, LENGTH = 8M |
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| 10 | frame-buffer (w) : ORIGIN = 0x800000, LENGTH = 64K |
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| 11 | ram (w) : ORIGIN = 0xc00000, LENGTH = 4M |
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| 12 | dma-ram (w) : ORIGIN = 0x1000000, LENGTH = 16M |
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| 13 | } |
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| 14 | SECTIONS |
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| 15 | { |
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| 16 | /* Read-only sections, merged into text segment: */ |
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| 17 | PROVIDE (__executable_start = 0x0); . = 0x0; |
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| 18 | .interp : { *(.interp) } |
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| 19 | .hash : { *(.hash) } |
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| 20 | .dynsym : { *(.dynsym) } |
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| 21 | .dynstr : { *(.dynstr) } |
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| 22 | .gnu.version : { *(.gnu.version) } |
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| 23 | .gnu.version_d : { *(.gnu.version_d) } |
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| 24 | .gnu.version_r : { *(.gnu.version_r) } |
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| 25 | .rel.init : { *(.rel.init) } |
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| 26 | .rela.init : { *(.rela.init) } |
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| 27 | .rel.text : { *(.rel.text .rel.text.* .rel.gnu.linkonce.t.*) } |
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| 28 | .rela.text : { *(.rela.text .rela.text.* .rela.gnu.linkonce.t.*) } |
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| 29 | .rel.fini : { *(.rel.fini) } |
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| 30 | .rela.fini : { *(.rela.fini) } |
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| 31 | .rel.rodata : { *(.rel.rodata .rel.rodata.* .rel.gnu.linkonce.r.*) } |
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| 32 | .rela.rodata : { *(.rela.rodata .rela.rodata.* .rela.gnu.linkonce.r.*) } |
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| 33 | .rel.data.rel.ro : { *(.rel.data.rel.ro*) } |
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| 34 | .rela.data.rel.ro : { *(.rel.data.rel.ro*) } |
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| 35 | .rel.data : { *(.rel.data .rel.data.* .rel.gnu.linkonce.d.*) } |
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| 36 | .rela.data : { *(.rela.data .rela.data.* .rela.gnu.linkonce.d.*) } |
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| 37 | .rel.tdata : { *(.rel.tdata .rel.tdata.* .rel.gnu.linkonce.td.*) } |
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| 38 | .rela.tdata : { *(.rela.tdata .rela.tdata.* .rela.gnu.linkonce.td.*) } |
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| 39 | .rel.tbss : { *(.rel.tbss .rel.tbss.* .rel.gnu.linkonce.tb.*) } |
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| 40 | .rela.tbss : { *(.rela.tbss .rela.tbss.* .rela.gnu.linkonce.tb.*) } |
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| 41 | .rel.ctors : { *(.rel.ctors) } |
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| 42 | .rela.ctors : { *(.rela.ctors) } |
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| 43 | .rel.dtors : { *(.rel.dtors) } |
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| 44 | .rela.dtors : { *(.rela.dtors) } |
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| 45 | .rel.got : { *(.rel.got) } |
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| 46 | .rela.got : { *(.rela.got) } |
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| 47 | .rel.sdata : { *(.rel.sdata .rel.sdata.* .rel.gnu.linkonce.s.*) } |
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| 48 | .rela.sdata : { *(.rela.sdata .rela.sdata.* .rela.gnu.linkonce.s.*) } |
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| 49 | .rel.sbss : { *(.rel.sbss .rel.sbss.* .rel.gnu.linkonce.sb.*) } |
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| 50 | .rela.sbss : { *(.rela.sbss .rela.sbss.* .rel.gnu.linkonce.sb.*) } |
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| 51 | .rel.sdata2 : { *(.rel.sdata2 .rel.sdata2.* .rel.gnu.linkonce.s2.*) } |
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| 52 | .rela.sdata2 : { *(.rela.sdata2 .rela.sdata2.* .rela.gnu.linkonce.s2.*) } |
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| 53 | .rel.sbss2 : { *(.rel.sbss2 .rel.sbss2.* .rel.gnu.linkonce.sb2.*) } |
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| 54 | .rela.sbss2 : { *(.rela.sbss2 .rela.sbss2.* .rela.gnu.linkonce.sb2.*) } |
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| 55 | .rel.bss : { *(.rel.bss .rel.bss.* .rel.gnu.linkonce.b.*) } |
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| 56 | .rela.bss : { *(.rela.bss .rela.bss.* .rela.gnu.linkonce.b.*) } |
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| 57 | .rel.plt : { *(.rel.plt) } |
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| 58 | .rela.plt : { *(.rela.plt) } |
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| 59 | |
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| 60 | .startup : { *startup-64-001.o(.startup) } >rom =0 |
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| 61 | |
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| 62 | .init : { KEEP (*(.init)) } >rom =0 |
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| 63 | .plt : { *(.plt) } >rom |
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| 64 | .text : |
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| 65 | { |
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| 66 | *startup-64-001.o(.text) |
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| 67 | *(.text .stub .text.* .gnu.linkonce.t.*) |
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| 68 | /* .gnu.warning sections are handled specially by elf32.em. */ |
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| 69 | *(.gnu.warning) |
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| 70 | } >rom =0 |
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| 71 | .fini : |
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| 72 | { |
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| 73 | KEEP (*(.fini)) |
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| 74 | } >rom =0 |
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| 75 | PROVIDE (__etext = .); |
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| 76 | PROVIDE (_etext = .); |
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| 77 | PROVIDE (etext = .); |
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| 78 | .rodata : { *(.rodata .rodata.* .gnu.linkonce.r.*) } >rom |
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| 79 | .rodata1 : { *(.rodata1) } >rom |
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| 80 | |
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| 81 | /* Data starting here needs to be copied from ROM to the frame buffer. */ |
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| 82 | /* Section .sdata2 is used as the beginning marker of the frame buffer |
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| 83 | address as well as the start of the data that needs to be copied. */ |
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| 84 | .sdata2 : AT (ADDR(.rodata1) + SIZEOF(.rodata1)) |
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| 85 | { *(.sdata2 .sdata2.* .gnu.linkonce.s2.*) } >frame-buffer |
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| 86 | .sbss2 : AT (LOADADDR(.sdata2) + SIZEOF(.sdata2)) |
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| 87 | { *(.sbss2 .sbss2.* .gnu.linkonce.sb2.*) } >frame-buffer |
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| 88 | .eh_frame_hdr : AT (LOADADDR(.sbss2) + SIZEOF(.sbss2)) |
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| 89 | { *(.eh_frame_hdr) } >frame-buffer |
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| 90 | .eh_frame : AT (LOADADDR(.eh_frame_hdr) + SIZEOF(.eh_frame_hdr)) |
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| 91 | ONLY_IF_RO { KEEP (*(.eh_frame)) } >frame-buffer |
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| 92 | .gcc_except_table : AT (LOADADDR(.eh_frame) + SIZEOF(.eh_frame)) |
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| 93 | ONLY_IF_RO { KEEP (*(.gcc_except_table)) *(.gcc_except_table.*) } >frame-buffer |
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| 94 | /* Adjust the address for the data segment. We want to adjust up to |
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| 95 | the same address within the page on the next page up. */ |
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| 96 | . = ALIGN(256) + (. & (256 - 1)); |
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| 97 | /* Exception handling */ |
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| 98 | .eh_frame : AT (LOADADDR(.eh_frame_hdr) + SIZEOF(.eh_frame_hdr)) |
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| 99 | ONLY_IF_RW { KEEP (*(.eh_frame)) } >frame-buffer |
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| 100 | .gcc_except_table : AT (LOADADDR(.eh_frame) + SIZEOF(.eh_frame)) |
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| 101 | ONLY_IF_RW { KEEP (*(.gcc_except_table)) *(.gcc_except_table.*) } >frame-buffer |
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| 102 | /* Thread Local Storage sections */ |
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| 103 | .tdata : AT (LOADADDR(.gcc_except_table) + SIZEOF(.gcc_except_table)) |
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| 104 | { *(.tdata .tdata.* .gnu.linkonce.td.*) } >frame-buffer |
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| 105 | .tbss : AT (LOADADDR(.tdata) + SIZEOF(.tdata)) |
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| 106 | { *(.tbss .tbss.* .gnu.linkonce.tb.*) *(.tcommon) } >frame-buffer |
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| 107 | /* Ensure the __preinit_array_start label is properly aligned. We |
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| 108 | could instead move the label definition inside the section, but |
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| 109 | the linker would then create the section even if it turns out to |
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| 110 | be empty, which isn't pretty. */ |
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| 111 | . = ALIGN(32 / 8); |
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| 112 | PROVIDE (__preinit_array_start = .); |
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| 113 | .preinit_array : AT (LOADADDR(.tbss) + SIZEOF(.tbss)) |
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| 114 | { *(.preinit_array) } >frame-buffer |
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| 115 | PROVIDE (__preinit_array_end = .); |
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| 116 | PROVIDE (__init_array_start = .); |
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| 117 | .init_array : AT (LOADADDR(.preinit_array) + SIZEOF(.preinit_array)) |
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| 118 | { *(.init_array) } >frame-buffer |
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| 119 | PROVIDE (__init_array_end = .); |
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| 120 | PROVIDE (__fini_array_start = .); |
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| 121 | .fini_array : AT (LOADADDR(.init_array) + SIZEOF(.init_array)) |
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| 122 | { *(.fini_array) } >frame-buffer |
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| 123 | PROVIDE (__fini_array_end = .); |
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| 124 | .ctors : AT (LOADADDR(.fini_array) + SIZEOF(.fini_array)) |
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| 125 | { |
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| 126 | /* gcc uses crtbegin.o to find the start of |
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| 127 | the constructors, so we make sure it is |
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| 128 | first. Because this is a wildcard, it |
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| 129 | doesn't matter if the user does not |
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| 130 | actually link against crtbegin.o; the |
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| 131 | linker won't look for a file to match a |
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| 132 | wildcard. The wildcard also means that it |
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| 133 | doesn't matter which directory crtbegin.o |
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| 134 | is in. */ |
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| 135 | KEEP (*crtbegin*.o(.ctors)) |
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| 136 | /* We don't want to include the .ctor section from |
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| 137 | from the crtend.o file until after the sorted ctors. |
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| 138 | The .ctor section from the crtend file contains the |
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| 139 | end of ctors marker and it must be last */ |
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| 140 | KEEP (*(EXCLUDE_FILE (*crtend*.o ) .ctors)) |
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| 141 | KEEP (*(SORT(.ctors.*))) |
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| 142 | KEEP (*(.ctors)) |
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| 143 | } >frame-buffer |
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| 144 | .dtors : AT (LOADADDR(.ctors) + SIZEOF(.ctors)) |
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| 145 | { |
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| 146 | KEEP (*crtbegin.o(.dtors)) |
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| 147 | KEEP (*(EXCLUDE_FILE (*crtend.o ) .dtors)) |
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| 148 | KEEP (*(SORT(.dtors.*))) |
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| 149 | KEEP (*(.dtors)) |
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| 150 | } >frame-buffer |
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| 151 | .jcr : AT (LOADADDR(.dtors) + SIZEOF(.dtors)) |
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| 152 | { KEEP (*(.jcr)) } >frame-buffer |
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| 153 | .data.rel.ro : AT (LOADADDR(.jcr) + SIZEOF(.jcr)) |
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| 154 | { *(.data.rel.ro.local) *(.data.rel.ro*) } >frame-buffer |
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| 155 | .dynamic : AT (LOADADDR(.data.rel.ro) + SIZEOF(.data.rel.ro)) |
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| 156 | { *(.dynamic) } >frame-buffer |
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| 157 | |
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| 158 | /* DJK - Re-align the data section from the read-only section. */ |
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| 159 | . = ALIGN(16) + (. & (16 - 1)); |
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| 160 | PROVIDE (_data = .); |
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| 161 | .data : AT (LOADADDR(.dynamic) + SIZEOF(.dynamic)) |
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| 162 | { |
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| 163 | *(.data .data.* .gnu.linkonce.d.*) |
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| 164 | KEEP (*(.gnu.linkonce.d.*personality*)) |
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| 165 | SORT(CONSTRUCTORS) |
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| 166 | } >frame-buffer |
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| 167 | .data1 : AT (LOADADDR(.data) + SIZEOF(.data)) |
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| 168 | { *(.data1) } >frame-buffer |
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| 169 | .got : AT (LOADADDR(.data1) + SIZEOF(.data1)) |
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| 170 | { *(.got.plt) *(.got) } |
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| 171 | |
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| 172 | /* We want the small data sections together, so single-instruction offsets |
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| 173 | can access them all, and initialized data all before uninitialized, so |
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| 174 | we can shorten the on-disk segment size. */ |
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| 175 | .sdata : AT (LOADADDR(.got) + SIZEOF(.got)) |
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| 176 | { *(.sdata .sdata.* .gnu.linkonce.s.*) } >frame-buffer |
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| 177 | _edata = .; |
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| 178 | PROVIDE ( edata = . ) ; |
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| 179 | |
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| 180 | _fbdata_start = LOADADDR(.sdata2) ; |
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| 181 | _fbdata_end = LOADADDR(.sdata) + SIZEOF(.sdata) - 4 ; |
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| 182 | |
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| 183 | PROVIDE (__FRAME_BUFFER_START = ADDR(.sdata2)); |
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| 184 | PROVIDE (__FRAME_BUFFER_SIZE = 0x10000); |
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| 185 | PROVIDE (__FRAME_BUFFER_END = __FRAME_BUFFER_START + __FRAME_BUFFER_SIZE); |
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| 186 | |
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| 187 | .sbss : AT (LOADADDR(.sdata) + SIZEOF(.sdata)) |
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| 188 | { |
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| 189 | PROVIDE (__sbss_start = .); |
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| 190 | PROVIDE (___sbss_start = .); |
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| 191 | *(.dynsbss) |
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| 192 | *(.sbss .sbss.* .gnu.linkonce.sb.*) |
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| 193 | *(.scommon) |
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| 194 | PROVIDE (__sbss_end = .); |
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| 195 | PROVIDE (___sbss_end = .); |
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| 196 | } >frame-buffer |
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| 197 | .bss : AT (LOADADDR(.sbss) + SIZEOF(.sbss)) |
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| 198 | { |
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| 199 | *(.dynbss) |
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| 200 | *(.bss .bss.* .gnu.linkonce.b.*) |
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| 201 | *(COMMON) |
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| 202 | /* Align here to ensure that the .bss section occupies space up to |
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| 203 | _end. Align after .bss to ensure correct alignment even if the |
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| 204 | .bss section disappears because there are no input sections. */ |
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| 205 | . = ALIGN(32 / 8); |
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| 206 | } >frame-buffer |
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| 207 | . = ALIGN(32 / 8); |
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| 208 | __bss_start = ADDR(.sbss) ; |
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| 209 | __bss_end = __bss_start + SIZEOF(.sbss) + SIZEOF(.bss) - 4 ; |
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| 210 | _end = .; |
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| 211 | PROVIDE (end = .); |
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| 212 | |
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| 213 | PROVIDE ( _extdata_start = ADDR(.bss) + SIZEOF(.bss)); |
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| 214 | .extdata : AT ( LOADADDR(.bss) + SIZEOF(.bss)) |
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| 215 | { |
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| 216 | *(.extdata) |
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| 217 | } >ram |
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| 218 | PROVIDE (_extdata_end = _extdata_start + SIZEOF(.extdata) - 4 ); |
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| 219 | |
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| 220 | .extbss : AT ( LOADADDR(.extdata) + SIZEOF(.extdata)) |
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| 221 | { |
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| 222 | _extbss_start = .; |
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| 223 | *(.extbss); |
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| 224 | . = ALIGN(4); |
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| 225 | _extbss_end = .; |
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| 226 | } >ram |
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| 227 | . = ALIGN(4); |
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| 228 | |
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| 229 | PROVIDE (__EXTERNAL_MEMORY_START = 0xc00000); |
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| 230 | |
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| 231 | .dma : |
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| 232 | { |
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| 233 | _dma_start = .; |
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| 234 | *(.dma) |
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| 235 | _dma_end = .; |
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| 236 | } >dma-ram |
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| 237 | |
|---|
| 238 | /* Stabs debugging sections. */ |
|---|
| 239 | .stab 0 : { *(.stab) } |
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| 240 | .stabstr 0 : { *(.stabstr) } |
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| 241 | .stab.excl 0 : { *(.stab.excl) } |
|---|
| 242 | .stab.exclstr 0 : { *(.stab.exclstr) } |
|---|
| 243 | .stab.index 0 : { *(.stab.index) } |
|---|
| 244 | .stab.indexstr 0 : { *(.stab.indexstr) } |
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| 245 | .comment 0 : { *(.comment) } |
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| 246 | /* DWARF debug sections. |
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| 247 | Symbols in the DWARF debugging sections are relative to the beginning |
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| 248 | of the section so we begin them at 0. */ |
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| 249 | /* DWARF 1 */ |
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| 250 | .debug 0 : { *(.debug) } |
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| 251 | .line 0 : { *(.line) } |
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| 252 | /* GNU DWARF 1 extensions */ |
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| 253 | .debug_srcinfo 0 : { *(.debug_srcinfo) } |
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| 254 | .debug_sfnames 0 : { *(.debug_sfnames) } |
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| 255 | /* DWARF 1.1 and DWARF 2 */ |
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| 256 | .debug_aranges 0 : { *(.debug_aranges) } |
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| 257 | .debug_pubnames 0 : { *(.debug_pubnames) } |
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| 258 | /* DWARF 2 */ |
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| 259 | .debug_info 0 : { *(.debug_info) *(.gnu.linkonce.wi.*) } |
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| 260 | .debug_abbrev 0 : { *(.debug_abbrev) } |
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| 261 | .debug_line 0 : { *(.debug_line) } |
|---|
| 262 | .debug_frame 0 : { *(.debug_frame) } |
|---|
| 263 | .debug_str 0 : { *(.debug_str) } |
|---|
| 264 | .debug_loc 0 : { *(.debug_loc) } |
|---|
| 265 | .debug_macinfo 0 : { *(.debug_macinfo) } |
|---|
| 266 | /* SGI/MIPS DWARF 2 extensions */ |
|---|
| 267 | .debug_weaknames 0 : { *(.debug_weaknames) } |
|---|
| 268 | .debug_funcnames 0 : { *(.debug_funcnames) } |
|---|
| 269 | .debug_typenames 0 : { *(.debug_typenames) } |
|---|
| 270 | .debug_varnames 0 : { *(.debug_varnames) } |
|---|
| 271 | |
|---|
| 272 | |
|---|
| 273 | PROVIDE (__stack = 0x80fff0); |
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| 274 | |
|---|
| 275 | .stack (DEFINED(__stack) ? __stack : 0x7FFFF0) : |
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| 276 | { |
|---|
| 277 | __stack = .; |
|---|
| 278 | *(.stack) |
|---|
| 279 | LONG(0xdeaddead) |
|---|
| 280 | } |
|---|
| 281 | /DISCARD/ : { *(.note.GNU-stack) } |
|---|
| 282 | } |
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