[73a312d7] | 1 | /* |
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| 2 | * This file contains directives for the GNU linker which are specific |
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| 3 | * to a gen5200 Board |
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| 4 | * |
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| 5 | * linkcmds,v 1.3 2003/01/20 19:53:27 joel Exp |
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| 6 | */ |
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| 7 | |
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| 8 | OUTPUT_FORMAT("elf32-powerpc", "elf32-powerpc", |
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| 9 | "elf32-powerpc") |
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| 10 | OUTPUT_ARCH(powerpc) |
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| 11 | SEARCH_DIR(/usr/local/rtems/powerpc-rtems/lib); |
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| 12 | |
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| 13 | ENTRY(start) |
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| 14 | |
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| 15 | /* |
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| 16 | * Declare some sizes. |
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| 17 | * XXX: The assignment of ". += XyzSize;" fails in older gld's if the |
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| 18 | * number used there is not constant. If this happens to you, edit |
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| 19 | * the lines marked XXX below to use a constant value. |
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| 20 | */ |
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| 21 | HeapSize = DEFINED(HeapSize) ? HeapSize : 0x6800000; /* 104M Heap */ |
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| 22 | StackSize = DEFINED(StackSize) ? StackSize : 0x80000; /* 512 kB */ |
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| 23 | WorkSpaceSize = DEFINED(WorkSpaceSize) ? WorkSpaceSize : 0x80000; /* 512k */ |
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| 24 | RamDiskSize = DEFINED(RamDiskSize) ? RamDiskSize : 0x80000; /* 512 ram disk */ |
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| 25 | |
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| 26 | MEMORY |
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| 27 | { |
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| 28 | ram : org = 0x0, l = 256M |
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| 29 | mpc5200_regs : org = 0xF0000000, l = 24K |
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| 30 | dpram : org = 0xFF000000, l = 0x400 |
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| 31 | flash : org = 0xFFE00000, l = 2M |
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| 32 | } |
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| 33 | |
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| 34 | |
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| 35 | SECTIONS |
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| 36 | { |
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| 37 | |
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| 38 | .vectors 0x100 : |
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| 39 | { |
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| 40 | *(.vectors) |
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| 41 | } |
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| 42 | > ram |
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| 43 | |
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| 44 | /* |
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| 45 | * The stack will live in this area - between the vectors and |
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| 46 | * the text section. |
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| 47 | */ |
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| 48 | |
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| 49 | .text 0x10000: |
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| 50 | { |
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| 51 | _textbase = .; |
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| 52 | |
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| 53 | |
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| 54 | text.start = .; |
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| 55 | |
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| 56 | /* Entry point is the .entry section */ |
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| 57 | *(.entry) |
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| 58 | *(.entry2) |
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| 59 | |
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| 60 | /* Actual Code */ |
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| 61 | *(.text) |
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| 62 | *(.text.*) |
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| 63 | |
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| 64 | |
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| 65 | *(.rodata*) |
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| 66 | *(.rodata1) |
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| 67 | |
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| 68 | |
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| 69 | /* |
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| 70 | * Special FreeBSD sysctl sections. |
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| 71 | */ |
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| 72 | . = ALIGN (16); |
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| 73 | __start_set_sysctl_set = .; |
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| 74 | *(set_sysctl_*); |
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| 75 | __stop_set_sysctl_set = ABSOLUTE(.); |
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| 76 | *(set_domain_*); |
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| 77 | *(set_pseudo_*); |
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| 78 | |
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| 79 | /* C++ constructors/destructors */ |
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| 80 | *(.gnu.linkonce.t*) |
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| 81 | |
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| 82 | /* Initialization and finalization code. |
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| 83 | * |
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| 84 | * Various files can provide initialization and finalization functions. |
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| 85 | * The bodies of these functions are in .init and .fini sections. We |
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| 86 | * accumulate the bodies here, and prepend function prologues from |
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| 87 | * ecrti.o and function epilogues from ecrtn.o. ecrti.o must be linked |
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| 88 | * first; ecrtn.o must be linked last. Because these are wildcards, it |
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| 89 | * doesn't matter if the user does not actually link against ecrti.o and |
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| 90 | * ecrtn.o; the linker won't look for a file to match a wildcard. The |
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| 91 | * wildcard also means that it doesn't matter which directory ecrti.o |
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| 92 | * and ecrtn.o are in. |
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| 93 | */ |
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| 94 | PROVIDE (_init = .); |
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| 95 | *ecrti.o(.init) |
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| 96 | *(.init) |
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| 97 | *ecrtn.o(.init) |
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| 98 | |
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| 99 | PROVIDE (_fini = .); |
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| 100 | *ecrti.o(.fini) |
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| 101 | *(.fini) |
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| 102 | *ecrtn.o(.init) |
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| 103 | |
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| 104 | /* |
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| 105 | * C++ constructors and destructors for static objects. |
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| 106 | * PowerPC EABI does not use crtstuff yet, so we build "old-style" |
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| 107 | * constructor and destructor lists that begin with the list lenght |
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| 108 | * end terminate with a NULL entry. |
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| 109 | */ |
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| 110 | |
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| 111 | PROVIDE (__CTOR_LIST__ = .); |
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| 112 | /* LONG((__CTOR_END__ - __CTOR_LIST__) / 4 - 2) */ |
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| 113 | *crtbegin.o(.ctors) |
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| 114 | *(.ctors) |
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| 115 | *crtend.o(.ctors) |
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| 116 | LONG(0) |
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| 117 | PROVIDE (__CTOR_END__ = .); |
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| 118 | |
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| 119 | PROVIDE (__DTOR_LIST__ = .); |
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| 120 | /* LONG((__DTOR_END__ - __DTOR_LIST__) / 4 - 2) */ |
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| 121 | *crtbegin.o(.dtors) |
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| 122 | *(.dtors) |
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| 123 | *crtend.o(.dtors) |
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| 124 | LONG(0) |
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| 125 | PROVIDE (__DTOR_END__ = .); |
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| 126 | |
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| 127 | /* Exception frame info */ |
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| 128 | *(.eh_frame) |
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| 129 | |
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| 130 | /* Miscellaneous read-only data */ |
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| 131 | _rodata_start = . ; |
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| 132 | *(.gnu.linkonce.r*) |
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| 133 | *(.lit) |
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| 134 | *(.shdata) |
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| 135 | *(.rodata) |
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| 136 | *(.rodata1) |
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| 137 | *(.descriptors) |
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| 138 | *(rom_ver) |
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| 139 | _erodata = .; |
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| 140 | |
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| 141 | PROVIDE (__EXCEPT_START__ = .); |
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| 142 | *(.gcc_except_table) |
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| 143 | PROVIDE (__EXCEPT_END__ = .); |
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| 144 | __GOT_START__ = .; |
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| 145 | s.got = .; |
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| 146 | *(.got.plt) |
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| 147 | *(.got) |
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| 148 | *(.got1) |
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| 149 | PROVIDE (__GOT2_START__ = .); |
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| 150 | PROVIDE (_GOT2_START_ = .); |
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| 151 | *(.got2) |
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| 152 | PROVIDE (__GOT2_END__ = .); |
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| 153 | PROVIDE (_GOT2_END_ = .); |
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| 154 | |
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| 155 | PROVIDE (__FIXUP_START__ = .); |
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| 156 | PROVIDE (_FIXUP_START_ = .); |
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| 157 | *(.fixup) |
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| 158 | PROVIDE (_FIXUP_END_ = .); |
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| 159 | PROVIDE (__FIXUP_END__ = .); |
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| 160 | |
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| 161 | /* Various possible names for the end of the .text section */ |
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| 162 | etext = ALIGN(0x10); |
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| 163 | _etext = .; |
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| 164 | _endtext = .; |
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| 165 | text.end = .; |
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| 166 | PROVIDE (etext = .); |
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| 167 | PROVIDE (__etext = .); |
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| 168 | |
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| 169 | } > ram |
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[0f8eaed1] | 170 | |
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| 171 | .rel.dyn : { |
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| 172 | *(.rel.init) |
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| 173 | *(.rel.text .rel.text.* .rel.gnu.linkonce.t.*) |
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| 174 | *(.rel.fini) |
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| 175 | *(.rel.rodata .rel.rodata.* .rel.gnu.linkonce.r.*) |
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| 176 | *(.rel.data.rel.ro* .rel.gnu.linkonce.d.rel.ro.*) |
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| 177 | *(.rel.data .rel.data.* .rel.gnu.linkonce.d.*) |
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| 178 | *(.rel.tdata .rel.tdata.* .rel.gnu.linkonce.td.*) |
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| 179 | *(.rel.tbss .rel.tbss.* .rel.gnu.linkonce.tb.*) |
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| 180 | *(.rel.ctors) |
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| 181 | *(.rel.dtors) |
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| 182 | *(.rel.got) |
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| 183 | *(.rel.sdata .rel.sdata.* .rel.gnu.linkonce.s.*) |
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| 184 | *(.rel.sbss .rel.sbss.* .rel.gnu.linkonce.sb.*) |
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| 185 | *(.rel.sdata2 .rel.sdata2.* .rel.gnu.linkonce.s2.*) |
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| 186 | *(.rel.sbss2 .rel.sbss2.* .rel.gnu.linkonce.sb2.*) |
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| 187 | *(.rel.bss .rel.bss.* .rel.gnu.linkonce.b.*) |
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| 188 | } >ram |
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| 189 | .rela.dyn : { |
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| 190 | *(.rela.init) |
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| 191 | *(.rela.text .rela.text.* .rela.gnu.linkonce.t.*) |
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| 192 | *(.rela.fini) |
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| 193 | *(.rela.rodata .rela.rodata.* .rela.gnu.linkonce.r.*) |
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| 194 | *(.rela.data .rela.data.* .rela.gnu.linkonce.d.*) |
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| 195 | *(.rela.tdata .rela.tdata.* .rela.gnu.linkonce.td.*) |
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| 196 | *(.rela.tbss .rela.tbss.* .rela.gnu.linkonce.tb.*) |
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| 197 | *(.rela.ctors) |
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| 198 | *(.rela.dtors) |
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| 199 | *(.rela.got) |
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| 200 | *(.rela.got1) |
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| 201 | *(.rela.got2) |
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| 202 | *(.rela.sdata .rela.sdata.* .rela.gnu.linkonce.s.*) |
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| 203 | *(.rela.sbss .rela.sbss.* .rela.gnu.linkonce.sb.*) |
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| 204 | *(.rela.sdata2 .rela.sdata2.* .rela.gnu.linkonce.s2.*) |
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| 205 | *(.rela.sbss2 .rela.sbss2.* .rela.gnu.linkonce.sb2.*) |
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| 206 | *(.rela.bss .rela.bss.* .rela.gnu.linkonce.b.*) |
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| 207 | } >ram |
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| 208 | |
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[73a312d7] | 209 | PROVIDE (__SDATA2_START__ = .); |
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| 210 | .sdata2 : { *(.sdata2) *(.gnu.linkonce.s2.*) } >ram |
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| 211 | .sbss2 : { *(.sbss2) *(.gnu.linkonce.sb2.*) } >ram |
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| 212 | PROVIDE (__SBSS2_END__ = .); |
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| 213 | |
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| 214 | .sbss2 : { *(.sbss2) } >ram |
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| 215 | PROVIDE (__SBSS2_END__ = .); |
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| 216 | |
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| 217 | /* R/W Data */ |
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| 218 | .data ( . ) : |
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| 219 | { |
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| 220 | . = ALIGN (4); |
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| 221 | |
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| 222 | data.start = .; |
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| 223 | |
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| 224 | *(.data) |
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| 225 | *(.data1) |
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| 226 | *(.data.* .gnu.linkonce.d.*) |
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| 227 | PROVIDE (__SDATA_START__ = .); |
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[6f2208f] | 228 | *(.sdata*) |
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[73a312d7] | 229 | *(.gnu.linkonce.s.*) |
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| 230 | data.end = .; |
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| 231 | } > ram |
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| 232 | |
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| 233 | __SBSS_START__ = .; |
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| 234 | .bss : |
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| 235 | { |
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| 236 | bss.start = .; |
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| 237 | *(.bss) *(.sbss) *(COMMON) |
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| 238 | . = ALIGN(4); |
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| 239 | bss.end = .; |
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| 240 | } > ram |
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| 241 | __SBSS_END__ = .; |
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| 242 | |
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| 243 | PROVIDE(_bss_start = ADDR(.bss)); |
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| 244 | PROVIDE(_bss_size = SIZEOF(.bss)); |
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| 245 | PROVIDE(_data_start = ADDR(.data)); |
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| 246 | PROVIDE(_data_size = SIZEOF(.data)); |
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| 247 | PROVIDE(_text_start = ADDR(.text)); |
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| 248 | PROVIDE(_text_size = SIZEOF(.text)); |
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| 249 | PROVIDE(_end = data.end); |
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| 250 | |
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| 251 | .gzipmalloc : { |
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| 252 | . = ALIGN (16); |
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| 253 | _startmalloc = .; |
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| 254 | } >ram |
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| 255 | |
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| 256 | |
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| 257 | /* |
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| 258 | * Interrupt stack setup |
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| 259 | */ |
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| 260 | IntrStack_start = ALIGN(0x10); |
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| 261 | . += 0x4000; |
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| 262 | intrStack = .; |
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| 263 | PROVIDE(intrStackPtr = intrStack); |
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| 264 | |
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| 265 | |
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| 266 | |
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| 267 | |
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| 268 | _WorkspaceBase = .; |
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| 269 | __WorkspaceBase = .; |
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| 270 | . += WorkSpaceSize; |
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| 271 | |
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| 272 | _RamDiskBase = .; |
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| 273 | __RamDiskBase = .; |
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| 274 | . += RamDiskSize; |
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| 275 | _RamDiskEnd = .; |
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| 276 | __RamDiskEnd = .; |
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| 277 | PROVIDE( _RamDiskSize = _RamDiskEnd - _RamDiskBase ); |
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| 278 | |
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| 279 | _HeapStart = .; |
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| 280 | __HeapStart = .; |
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| 281 | . += HeapSize; |
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| 282 | _HeapEnd = .; |
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| 283 | __HeapEnd = .; |
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| 284 | |
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| 285 | clear_end = .; |
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| 286 | |
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| 287 | /* Sections for compressed .text and .data */ |
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| 288 | /* after the .datarom section is an int specifying */ |
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| 289 | /* the length of the following compressed image */ |
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| 290 | /* Executes once then could get overwritten */ |
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| 291 | .textrom 0x100000 : |
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| 292 | { |
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| 293 | *(.textrom) |
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| 294 | _endloader = .; |
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| 295 | } > ram |
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| 296 | |
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| 297 | .datarom : |
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| 298 | { |
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| 299 | _dr_start = .; |
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| 300 | *(.datarom) |
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| 301 | _dr_end = .; |
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| 302 | } > ram |
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| 303 | dr_len = _dr_end - _dr_start; |
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| 304 | |
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| 305 | mpc5200_regs : |
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| 306 | { |
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| 307 | MBAR = .; |
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| 308 | mpc5200 = .; |
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| 309 | _mpc5200 = .; |
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| 310 | . += (0x6000); |
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| 311 | } > mpc5200_regs |
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| 312 | |
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| 313 | .dpram : |
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| 314 | { |
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| 315 | dp_ram = .; |
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| 316 | _dp_ram = .; |
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| 317 | . += (0x400); |
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| 318 | } > dpram |
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| 319 | |
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| 320 | |
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| 321 | /* the reset vector is at 0xfff00000 which is */ |
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| 322 | /* located at offset 0x400000 from the base */ |
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| 323 | /* of flash */ |
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| 324 | .bootrom 0xFFE00000 : |
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| 325 | { |
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| 326 | *(.bootrom) |
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| 327 | _endboot = .; |
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| 328 | } > flash |
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| 329 | |
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| 330 | |
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| 331 | .line 0 : { *(.line) } |
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| 332 | .debug 0 : { *(.debug) } |
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| 333 | .debug_sfnames 0 : { *(.debug_sfnames) } |
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| 334 | .debug_srcinfo 0 : { *(.debug_srcinfo) } |
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| 335 | .debug_pubnames 0 : { *(.debug_pubnames) } |
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| 336 | .debug_aranges 0 : { *(.debug_aranges) } |
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| 337 | .debug_aregion 0 : { *(.debug_aregion) } |
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| 338 | .debug_macinfo 0 : { *(.debug_macinfo) } |
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| 339 | .stab 0 : { *(.stab) } |
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| 340 | .stabstr 0 : { *(.stabstr) } |
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| 341 | } |
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