[b812f84] | 1 | /* |
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| 2 | * MC68302 Linker command file |
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| 3 | * |
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| 4 | */ |
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| 5 | |
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| 6 | /* |
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| 7 | * Declare some sizes. |
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| 8 | */ |
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| 9 | _RomBase = DEFINED(_RomBase) ? _RomBase : 0x0; |
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[7f71164] | 10 | _RomSize = DEFINED(_RomSize) ? _RomSize : 512K; |
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[07ce99e] | 11 | RamBase = DEFINED(RamBase) ? RamBase : 0x80000; |
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| 12 | RamSize = DEFINED(RamSize) ? RamSize : 128K; |
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| 13 | HeapSize = DEFINED(HeapSize) ? HeapSize : 0; |
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[b812f84] | 14 | _StackSize = DEFINED(_StackSize) ? _StackSize : 0x1000; |
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| 15 | |
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| 16 | /* |
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| 17 | * Declare on-board memory. |
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| 18 | */ |
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| 19 | MEMORY { |
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[7f71164] | 20 | eprom : ORIGIN = 0x00000000, LENGTH = 512K |
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[b812f84] | 21 | ram : ORIGIN = 0x00040000, LENGTH = 128K |
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| 22 | } |
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| 23 | SECTIONS |
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| 24 | { |
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| 25 | ram : { |
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| 26 | . = .; |
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| 27 | } >ram |
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| 28 | |
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| 29 | /* |
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| 30 | * Text, data and bss segments |
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| 31 | */ |
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| 32 | .text 0x0 : { |
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[4217b96] | 33 | *(.text*) |
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[b812f84] | 34 | |
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| 35 | /* |
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| 36 | * C++ constructors/destructors |
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| 37 | */ |
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| 38 | *(.gnu.linkonce.t.*) |
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| 39 | |
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| 40 | /* |
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| 41 | * Initialization and finalization code. |
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| 42 | * |
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| 43 | * Various files can provide initialization and finalization |
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| 44 | * functions. crtbegin.o and crtend.o are two instances. The |
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| 45 | * body of these functions are in .init and .fini sections. We |
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| 46 | * accumulate the bodies here, and prepend function prologues |
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| 47 | * from crti.o and function epilogues from crtn.o. crti.o must |
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| 48 | * be linked first; crtn.o must be linked last. Because these |
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| 49 | * are wildcards, it doesn't matter if the user does not |
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| 50 | * actually link against crti.o and crtn.o; the linker won't |
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| 51 | * look for a file to match a wildcard. The wildcard also |
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| 52 | * means that it doesn't matter which directory crti.o and |
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| 53 | * crtn.o are in. |
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| 54 | */ |
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| 55 | PROVIDE (_init = .); |
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| 56 | *crti.o(.init) |
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| 57 | *(.init) |
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| 58 | *crtn.o(.init) |
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| 59 | PROVIDE (_fini = .); |
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| 60 | *crti.o(.fini) |
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| 61 | *(.fini) |
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| 62 | *crtn.o(.fini) |
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| 63 | |
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[9c1133e] | 64 | /* |
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| 65 | * Special FreeBSD sysctl sections. |
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| 66 | */ |
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| 67 | . = ALIGN (16); |
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| 68 | __start_set_sysctl_set = .; |
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| 69 | *(set_sysctl_*); |
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| 70 | __stop_set_sysctl_set = ABSOLUTE(.); |
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| 71 | *(set_domain_*); |
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| 72 | *(set_pseudo_*); |
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| 73 | |
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[b812f84] | 74 | /* |
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| 75 | * C++ constructors/destructors |
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| 76 | * |
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| 77 | * gcc uses crtbegin.o to find the start of the constructors |
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| 78 | * and destructors so we make sure it is first. Because this |
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| 79 | * is a wildcard, it doesn't matter if the user does not |
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| 80 | * actually link against crtbegin.o; the linker won't look for |
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| 81 | * a file to match a wildcard. The wildcard also means that |
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| 82 | * it doesn't matter which directory crtbegin.o is in. The |
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| 83 | * constructor and destructor list are terminated in |
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| 84 | * crtend.o. The same comments apply to it. |
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| 85 | */ |
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| 86 | . = ALIGN (16); |
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| 87 | *crtbegin.o(.ctors) |
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| 88 | *(.ctors) |
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| 89 | *crtend.o(.ctors) |
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| 90 | *crtbegin.o(.dtors) |
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| 91 | *(.dtors) |
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| 92 | *crtend.o(.dtors) |
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| 93 | |
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| 94 | /* |
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| 95 | * Exception frame info |
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| 96 | */ |
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| 97 | . = ALIGN (16); |
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| 98 | *(.eh_frame) |
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| 99 | |
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| 100 | /* |
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| 101 | * Read-only data |
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| 102 | */ |
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| 103 | . = ALIGN (16); |
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[85c92574] | 104 | _rodata_start = .; |
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| 105 | *(.rodata*) |
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[b812f84] | 106 | *(.gnu.linkonce.r*) |
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| 107 | |
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| 108 | . = ALIGN (16); |
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| 109 | PROVIDE (_etext = .); |
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| 110 | } |
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[960fd85] | 111 | |
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| 112 | .tdata ADDR(.text) + SIZEOF (.text) : { |
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| 113 | _TLS_Data_begin = .; |
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| 114 | *(.tdata .tdata.* .gnu.linkonce.td.*) |
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| 115 | _TLS_Data_end = .; |
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| 116 | } |
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| 117 | |
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| 118 | .tbss ADDR(.tdata) + SIZEOF (.tdata) : { |
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| 119 | _TLS_BSS_begin = .; |
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| 120 | *(.tbss .tbss.* .gnu.linkonce.tb.*) *(.tcommon) |
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| 121 | _TLS_BSS_end = .; |
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| 122 | } |
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| 123 | |
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| 124 | _TLS_Data_size = _TLS_Data_end - _TLS_Data_begin; |
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[d60e760] | 125 | _TLS_Data_begin = _TLS_Data_size != 0 ? _TLS_Data_begin : _TLS_BSS_begin; |
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| 126 | _TLS_Data_end = _TLS_Data_size != 0 ? _TLS_Data_end : _TLS_BSS_begin; |
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[960fd85] | 127 | _TLS_BSS_size = _TLS_BSS_end - _TLS_BSS_begin; |
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| 128 | _TLS_Size = _TLS_BSS_end - _TLS_Data_begin; |
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[d60e760] | 129 | _TLS_Alignment = MAX (ALIGNOF (.tdata), ALIGNOF (.tbss)); |
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[960fd85] | 130 | |
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| 131 | .data 0x80000 : AT (ADDR(.tdata) + SIZEOF (.tdata)) { |
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[b812f84] | 132 | PROVIDE (_copy_start = .); |
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[1144653] | 133 | *(.data*) |
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[b812f84] | 134 | *(.gnu.linkonce.d*) |
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[d1f57b5] | 135 | *(.gcc_except_table*) |
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[85c92574] | 136 | *(.jcr) |
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[b812f84] | 137 | . = ALIGN (16); |
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| 138 | PROVIDE (_edata = .); |
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| 139 | PROVIDE (_copy_end = .); |
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| 140 | } |
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| 141 | .bss ADDR(.data) + SIZEOF(.data) : { |
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| 142 | _clear_start = .; |
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[7f71164] | 143 | *(.dynbss) |
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[4217b96] | 144 | *(.bss* .gnu.linkonce.b.*) |
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[b812f84] | 145 | *(COMMON) |
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| 146 | . = ALIGN (16); |
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| 147 | PROVIDE (end = .); |
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| 148 | |
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| 149 | . += _StackSize; |
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| 150 | . = ALIGN (16); |
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| 151 | _stack_init = .; |
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| 152 | _clear_end = .; |
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| 153 | |
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[07ce99e] | 154 | WorkAreaBase = .; |
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[b812f84] | 155 | } |
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[9f30a08b] | 156 | |
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| 157 | /* Stabs debugging sections. */ |
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| 158 | .stab 0 : { *(.stab) } |
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| 159 | .stabstr 0 : { *(.stabstr) } |
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| 160 | .stab.excl 0 : { *(.stab.excl) } |
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| 161 | .stab.exclstr 0 : { *(.stab.exclstr) } |
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| 162 | .stab.index 0 : { *(.stab.index) } |
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| 163 | .stab.indexstr 0 : { *(.stab.indexstr) } |
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| 164 | .comment 0 : { *(.comment) } |
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| 165 | |
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| 166 | /* DWARF debug sections. |
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| 167 | Symbols in the DWARF debugging sections are relative to the beginning |
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| 168 | of the section so we begin them at 0. */ |
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| 169 | /* DWARF 1 */ |
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| 170 | .debug 0 : { *(.debug) } |
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| 171 | .line 0 : { *(.line) } |
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| 172 | |
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| 173 | /* GNU DWARF 1 extensions */ |
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| 174 | .debug_srcinfo 0 : { *(.debug_srcinfo) } |
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| 175 | .debug_sfnames 0 : { *(.debug_sfnames) } |
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| 176 | |
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| 177 | /* DWARF 1.1 and DWARF 2 */ |
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| 178 | .debug_aranges 0 : { *(.debug_aranges) } |
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| 179 | .debug_pubnames 0 : { *(.debug_pubnames) } |
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| 180 | |
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| 181 | /* DWARF 2 */ |
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| 182 | .debug_info 0 : { *(.debug_info) } |
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| 183 | .debug_abbrev 0 : { *(.debug_abbrev) } |
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| 184 | .debug_line 0 : { *(.debug_line) } |
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| 185 | .debug_frame 0 : { *(.debug_frame) } |
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| 186 | .debug_str 0 : { *(.debug_str) } |
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| 187 | .debug_loc 0 : { *(.debug_loc) } |
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| 188 | .debug_macinfo 0 : { *(.debug_macinfo) } |
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| 189 | |
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| 190 | /* SGI/MIPS DWARF 2 extensions */ |
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| 191 | .debug_weaknames 0 : { *(.debug_weaknames) } |
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| 192 | .debug_funcnames 0 : { *(.debug_funcnames) } |
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| 193 | .debug_typenames 0 : { *(.debug_typenames) } |
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| 194 | .debug_varnames 0 : { *(.debug_varnames) } |
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| 195 | /* These must appear regardless of . */ |
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[b812f84] | 196 | } |
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| 197 | |
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[d4f0eef] | 198 | /* _VBR = 0xFFFFFFFF; * indicates VBR table is in ROM */ |
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| 199 | _VBR = 0x0; /* indicates VBR table is in RAM */ |
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[b812f84] | 200 | |
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