[5edbffe] | 1 | /* |
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| 2 | * This file contains directives for the GNU linker which are specific |
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| 3 | * to the MPC8260ADS Board |
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| 4 | */ |
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| 5 | |
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| 6 | OUTPUT_FORMAT("elf32-powerpc", "elf32-powerpc", |
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| 7 | "elf32-powerpc") |
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| 8 | OUTPUT_ARCH(powerpc) |
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[0f707111] | 9 | |
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[5edbffe] | 10 | ENTRY(start) |
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[a1d4d6a2] | 11 | STARTUP(start.o) |
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| 12 | EXTERN(__vectors) |
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[5edbffe] | 13 | |
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| 14 | /* |
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| 15 | * Declare some sizes. |
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| 16 | * XXX: The assignment of ". += XyzSize;" fails in older gld's if the |
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| 17 | * number used there is not constant. If this happens to you, edit |
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| 18 | * the lines marked XXX below to use a constant value. |
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| 19 | */ |
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[0f707111] | 20 | StackSize = DEFINED(StackSize) ? StackSize : 0x8000; |
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| 21 | RamBase = DEFINED(RamBase) ? RamBase : 0x0; |
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| 22 | RamSize = DEFINED(RamSize) ? RamDiskSize : 0x0800000; /* 8M program ram */ |
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[284ed06a] | 23 | HeapSize = DEFINED(HeapSize) ? HeapSize : 0x0; |
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[0f707111] | 24 | RamDiskBase = DEFINED(RamDiskBase) ? RamDiskBase : 0x0800000; |
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[5edbffe] | 25 | RamDiskSize = DEFINED(RamDiskSize) ? RamDiskSize : 0x0800000; /* 8M ram disk */ |
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[0f707111] | 26 | |
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[5edbffe] | 27 | MEMORY |
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[0f707111] | 28 | { |
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| 29 | ram : org = 0x0, l = 8M |
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| 30 | ramdisk : org = 0x0800000, l = 8M |
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| 31 | dpram : org = 0x04700000, l = 128K |
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| 32 | flash : org = 0xff800000, l = 8M |
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| 33 | } |
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[5edbffe] | 34 | |
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| 35 | |
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| 36 | SECTIONS |
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| 37 | { |
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[0f707111] | 38 | /* |
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[5edbffe] | 39 | * The stack will live in this area - between the vectors and |
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| 40 | * the text section. |
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| 41 | */ |
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[0f707111] | 42 | |
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[5edbffe] | 43 | .text 0x10000: |
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| 44 | { |
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| 45 | _textbase = .; |
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| 46 | |
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| 47 | |
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| 48 | text.start = .; |
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| 49 | |
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| 50 | /* Entry point is the .entry section */ |
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| 51 | *(.entry) |
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| 52 | *(.entry2) |
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| 53 | |
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| 54 | /* Actual Code */ |
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[4217b96] | 55 | *(.text*) |
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[5edbffe] | 56 | |
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| 57 | |
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[85c92574] | 58 | *(.rodata*) |
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[5edbffe] | 59 | *(.rodata1) |
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| 60 | |
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[7b0c547a] | 61 | |
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| 62 | /* |
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| 63 | * Special FreeBSD sysctl sections. |
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| 64 | */ |
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| 65 | . = ALIGN (16); |
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| 66 | __start_set_sysctl_set = .; |
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| 67 | *(set_sysctl_*); |
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| 68 | __stop_set_sysctl_set = ABSOLUTE(.); |
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| 69 | *(set_domain_*); |
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| 70 | *(set_pseudo_*); |
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| 71 | |
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[5edbffe] | 72 | /* C++ constructors/destructors */ |
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| 73 | *(.gnu.linkonce.t*) |
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| 74 | |
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| 75 | /* Initialization and finalization code. |
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| 76 | * |
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| 77 | * Various files can provide initialization and finalization functions. |
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| 78 | * The bodies of these functions are in .init and .fini sections. We |
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| 79 | * accumulate the bodies here, and prepend function prologues from |
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| 80 | * ecrti.o and function epilogues from ecrtn.o. ecrti.o must be linked |
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| 81 | * first; ecrtn.o must be linked last. Because these are wildcards, it |
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| 82 | * doesn't matter if the user does not actually link against ecrti.o and |
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| 83 | * ecrtn.o; the linker won't look for a file to match a wildcard. The |
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| 84 | * wildcard also means that it doesn't matter which directory ecrti.o |
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[0f707111] | 85 | * and ecrtn.o are in. |
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[5edbffe] | 86 | */ |
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| 87 | PROVIDE (_init = .); |
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| 88 | *ecrti.o(.init) |
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| 89 | *(.init) |
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| 90 | *ecrtn.o(.init) |
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[0f707111] | 91 | |
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[5edbffe] | 92 | PROVIDE (_fini = .); |
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| 93 | *ecrti.o(.fini) |
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| 94 | *(.fini) |
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| 95 | *ecrtn.o(.init) |
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| 96 | |
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[0f707111] | 97 | /* |
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[5edbffe] | 98 | * C++ constructors and destructors for static objects. |
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| 99 | * PowerPC EABI does not use crtstuff yet, so we build "old-style" |
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[612297e8] | 100 | * constructor and destructor lists that begin with the list length |
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[5edbffe] | 101 | * end terminate with a NULL entry. |
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| 102 | */ |
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[0f707111] | 103 | |
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| 104 | PROVIDE (__CTOR_LIST__ = .); |
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[5edbffe] | 105 | /* LONG((__CTOR_END__ - __CTOR_LIST__) / 4 - 2) */ |
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| 106 | *crtbegin.o(.ctors) |
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| 107 | *(.ctors) |
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| 108 | *crtend.o(.ctors) |
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| 109 | LONG(0) |
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| 110 | PROVIDE (__CTOR_END__ = .); |
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[0f707111] | 111 | |
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[5edbffe] | 112 | PROVIDE (__DTOR_LIST__ = .); |
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| 113 | /* LONG((__DTOR_END__ - __DTOR_LIST__) / 4 - 2) */ |
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| 114 | *crtbegin.o(.dtors) |
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| 115 | *(.dtors) |
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| 116 | *crtend.o(.dtors) |
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| 117 | LONG(0) |
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| 118 | PROVIDE (__DTOR_END__ = .); |
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[0f707111] | 119 | |
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[5edbffe] | 120 | /* Exception frame info */ |
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| 121 | *(.eh_frame) |
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| 122 | |
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| 123 | /* Miscellaneous read-only data */ |
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| 124 | _rodata_start = . ; |
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| 125 | *(.gnu.linkonce.r*) |
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| 126 | *(.lit) |
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| 127 | *(.shdata) |
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| 128 | *(.rodata) |
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| 129 | *(.rodata1) |
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[b618d8c] | 130 | KEEP (*(SORT(.rtemsroset.*))) |
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[5edbffe] | 131 | *(.descriptors) |
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| 132 | *(rom_ver) |
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| 133 | _erodata = .; |
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| 134 | |
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| 135 | |
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| 136 | /* Various possible names for the end of the .text section */ |
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| 137 | etext = ALIGN(0x10); |
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| 138 | _etext = .; |
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| 139 | _endtext = .; |
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| 140 | text.end = .; |
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| 141 | PROVIDE (etext = .); |
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| 142 | PROVIDE (__etext = .); |
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[0f707111] | 143 | |
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[5edbffe] | 144 | } > ram |
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| 145 | |
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[960fd85] | 146 | .tdata : { |
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| 147 | _TLS_Data_begin = .; |
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| 148 | *(.tdata .tdata.* .gnu.linkonce.td.*) |
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| 149 | _TLS_Data_end = .; |
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| 150 | } >ram |
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| 151 | |
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| 152 | .tbss : { |
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| 153 | _TLS_BSS_begin = .; |
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| 154 | *(.tbss .tbss.* .gnu.linkonce.tb.*) *(.tcommon) |
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| 155 | _TLS_BSS_end = .; |
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| 156 | } >ram |
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| 157 | |
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| 158 | _TLS_Data_size = _TLS_Data_end - _TLS_Data_begin; |
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[d60e760] | 159 | _TLS_Data_begin = _TLS_Data_size != 0 ? _TLS_Data_begin : _TLS_BSS_begin; |
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| 160 | _TLS_Data_end = _TLS_Data_size != 0 ? _TLS_Data_end : _TLS_BSS_begin; |
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[960fd85] | 161 | _TLS_BSS_size = _TLS_BSS_end - _TLS_BSS_begin; |
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| 162 | _TLS_Size = _TLS_BSS_end - _TLS_Data_begin; |
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[d60e760] | 163 | _TLS_Alignment = MAX (ALIGNOF (.tdata), ALIGNOF (.tbss)); |
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[960fd85] | 164 | |
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[417fca76] | 165 | |
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| 166 | .rel.dyn : |
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| 167 | { |
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| 168 | *(.rel.init) |
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| 169 | *(.rel.text .rel.text.* .rel.gnu.linkonce.t.*) |
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| 170 | *(.rel.fini) |
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| 171 | *(.rel.rodata .rel.rodata.* .rel.gnu.linkonce.r.*) |
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| 172 | *(.rel.data.rel.ro* .rel.gnu.linkonce.d.rel.ro.*) |
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| 173 | *(.rel.data .rel.data.* .rel.gnu.linkonce.d.*) |
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| 174 | *(.rel.tdata .rel.tdata.* .rel.gnu.linkonce.td.*) |
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| 175 | *(.rel.tbss .rel.tbss.* .rel.gnu.linkonce.tb.*) |
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| 176 | *(.rel.ctors) |
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| 177 | *(.rel.dtors) |
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| 178 | *(.rel.got) |
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| 179 | *(.rel.sdata .rel.sdata.* .rel.gnu.linkonce.s.*) |
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| 180 | *(.rel.sbss .rel.sbss.* .rel.gnu.linkonce.sb.*) |
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| 181 | *(.rel.sdata2 .rel.sdata2.* .rel.gnu.linkonce.s2.*) |
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| 182 | *(.rel.sbss2 .rel.sbss2.* .rel.gnu.linkonce.sb2.*) |
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| 183 | *(.rel.bss .rel.bss.* .rel.gnu.linkonce.b.*) |
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| 184 | } >ram |
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| 185 | .rela.dyn : |
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| 186 | { |
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| 187 | *(.rela.init) |
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| 188 | *(.rela.text .rela.text.* .rela.gnu.linkonce.t.*) |
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| 189 | *(.rela.fini) |
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| 190 | *(.rela.rodata .rela.rodata.* .rela.gnu.linkonce.r.*) |
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| 191 | *(.rela.data .rela.data.* .rela.gnu.linkonce.d.*) |
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| 192 | *(.rela.tdata .rela.tdata.* .rela.gnu.linkonce.td.*) |
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| 193 | *(.rela.tbss .rela.tbss.* .rela.gnu.linkonce.tb.*) |
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| 194 | *(.rela.ctors) |
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| 195 | *(.rela.dtors) |
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| 196 | *(.rela.got) |
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| 197 | *(.rela.got1) |
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| 198 | *(.rela.got2) |
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| 199 | *(.rela.sdata .rela.sdata.* .rela.gnu.linkonce.s.*) |
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| 200 | *(.rela.sbss .rela.sbss.* .rela.gnu.linkonce.sb.*) |
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| 201 | *(.rela.sdata2 .rela.sdata2.* .rela.gnu.linkonce.s2.*) |
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| 202 | *(.rela.sbss2 .rela.sbss2.* .rela.gnu.linkonce.sb2.*) |
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| 203 | *(.rela.bss .rela.bss.* .rela.gnu.linkonce.b.*) |
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| 204 | } >ram |
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| 205 | .rel.plt : { *(.rel.plt) } |
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| 206 | .rela.plt : { *(.rela.plt) } |
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| 207 | |
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[5edbffe] | 208 | PROVIDE (__EXCEPT_START__ = .); |
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[d1f57b5] | 209 | .gcc_except_table : { *(.gcc_except_table*) } >ram |
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[5edbffe] | 210 | PROVIDE (__EXCEPT_END__ = .); |
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| 211 | __GOT_START__ = .; |
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| 212 | .got : |
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| 213 | { |
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| 214 | s.got = .; |
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| 215 | *(.got.plt) *(.got) |
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| 216 | } > ram |
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| 217 | __GOT_END__ = .; |
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[0f707111] | 218 | |
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[5edbffe] | 219 | .got1 : { *(.got1) } >ram |
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| 220 | PROVIDE (__GOT2_START__ = .); |
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| 221 | PROVIDE (_GOT2_START_ = .); |
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| 222 | .got2 : { *(.got2) } >ram |
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| 223 | PROVIDE (__GOT2_END__ = .); |
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| 224 | PROVIDE (_GOT2_END_ = .); |
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[0f707111] | 225 | |
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[5edbffe] | 226 | PROVIDE (__FIXUP_START__ = .); |
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| 227 | PROVIDE (_FIXUP_START_ = .); |
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| 228 | .fixup : { *(.fixup) } >ram |
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| 229 | PROVIDE (_FIXUP_END_ = .); |
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| 230 | PROVIDE (__FIXUP_END__ = .); |
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[2d2de4eb] | 231 | |
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| 232 | .sdata : { |
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| 233 | PROVIDE (_SDA_BASE_ = 32768); |
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| 234 | *(.sdata .sdata.* .gnu.linkonce.s.*) |
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| 235 | } > ram |
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| 236 | |
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| 237 | .sbss : { |
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| 238 | __bss_start = .; |
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| 239 | |
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| 240 | PROVIDE (__sbss_start = .); PROVIDE (___sbss_start = .); |
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| 241 | *(.scommon) |
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| 242 | *(.dynsbss) |
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| 243 | *(.sbss .sbss.* .gnu.linkonce.sb.*) |
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| 244 | PROVIDE (__sbss_end = .); PROVIDE (___sbss_end = .); |
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| 245 | } > ram |
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| 246 | |
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| 247 | .sdata2 : { |
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| 248 | PROVIDE (_SDA2_BASE_ = 32768); |
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| 249 | |
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| 250 | *(.sdata2 .sdata2.* .gnu.linkonce.s2.*) |
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| 251 | } > ram =0 |
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| 252 | |
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| 253 | .sbss2 : { |
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| 254 | *(.sbss2 .sbss2.* .gnu.linkonce.sb2.*) |
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| 255 | } > ram =0 |
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[0f707111] | 256 | |
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[5edbffe] | 257 | .bss : |
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| 258 | { |
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| 259 | bss.start = .; |
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[bd86290d] | 260 | *(.bss .bss* .gnu.linkonce.b*) |
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[5edbffe] | 261 | . = ALIGN(4); |
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| 262 | bss.end = .; |
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| 263 | } > ram |
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| 264 | |
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| 265 | /* R/W Data */ |
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| 266 | .data ( . ) : |
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| 267 | { |
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| 268 | . = ALIGN (4); |
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| 269 | |
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| 270 | data.start = .; |
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| 271 | |
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| 272 | *(.data) |
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| 273 | *(.data1) |
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[4b27d816] | 274 | *(.data.* .gnu.linkonce.d.*) |
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[b618d8c] | 275 | KEEP (*(SORT(.rtemsrwset.*))) |
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[5edbffe] | 276 | PROVIDE (__SDATA_START__ = .); |
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[e10574a] | 277 | *(.sdata .sdata.* .gnu.linkonce.s.*) |
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[5edbffe] | 278 | data.end = .; |
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| 279 | } > ram |
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| 280 | |
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| 281 | data.size = data.end - data.start; |
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| 282 | bss.size = bss.end - bss.start; |
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| 283 | text.size = text.end - text.start; |
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| 284 | |
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| 285 | PROVIDE(_end = data.end); |
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| 286 | |
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| 287 | .gzipmalloc : { |
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| 288 | . = ALIGN (16); |
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| 289 | _startmalloc = .; |
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| 290 | } >ram |
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[0f707111] | 291 | |
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[5edbffe] | 292 | |
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| 293 | /* |
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| 294 | * Interrupt stack setup |
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| 295 | */ |
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| 296 | IntrStack_start = ALIGN(0x10); |
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| 297 | . += 0x4000; |
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| 298 | intrStack = .; |
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| 299 | PROVIDE(intrStackPtr = intrStack); |
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| 300 | |
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| 301 | |
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| 302 | clear_end = .; |
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| 303 | |
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[284ed06a] | 304 | WorkAreaBase = .; |
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[5edbffe] | 305 | |
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| 306 | /* Sections for compressed .text and .data */ |
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| 307 | /* after the .datarom section is an int specifying */ |
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| 308 | /* the length of the following compressed image */ |
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| 309 | /* Executes once then could get overwritten */ |
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| 310 | .textrom 0x100000 : |
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| 311 | { |
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| 312 | *(.textrom) |
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| 313 | _endloader = .; |
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| 314 | } > ram |
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| 315 | |
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| 316 | .datarom : |
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| 317 | { |
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| 318 | _dr_start = .; |
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| 319 | *(.datarom) |
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| 320 | _dr_end = .; |
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| 321 | } > ram |
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| 322 | dr_len = _dr_end - _dr_start; |
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| 323 | |
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| 324 | .dpram : |
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| 325 | { |
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| 326 | m8260 = .; |
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| 327 | _m8260 = .; |
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| 328 | . += (128 * 1024); |
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| 329 | } > dpram |
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| 330 | |
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| 331 | |
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| 332 | /* the reset vector is at 0xfff00000 which is */ |
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| 333 | /* located at offset 0x400000 from the base */ |
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| 334 | /* of flash */ |
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| 335 | .bootrom 0xFFF00000 : |
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| 336 | { |
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| 337 | *(.bootrom) |
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| 338 | _endboot = .; |
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| 339 | } > flash |
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| 340 | |
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| 341 | |
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| 342 | .line 0 : { *(.line) } |
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| 343 | .debug 0 : { *(.debug) } |
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| 344 | .debug_sfnames 0 : { *(.debug_sfnames) } |
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| 345 | .debug_srcinfo 0 : { *(.debug_srcinfo) } |
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| 346 | .debug_pubnames 0 : { *(.debug_pubnames) } |
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| 347 | .debug_aranges 0 : { *(.debug_aranges) } |
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| 348 | .debug_aregion 0 : { *(.debug_aregion) } |
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| 349 | .debug_macinfo 0 : { *(.debug_macinfo) } |
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| 350 | .stab 0 : { *(.stab) } |
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| 351 | .stabstr 0 : { *(.stabstr) } |
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| 352 | } |
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