git.zerfleddert.de Git - fnordlicht-mini/blob - firmware/fnordlicht-bootloader/ldscripts/avr4.x

   1 /* Default linker script, for normal executables */
   2 OUTPUT_FORMAT("elf32-avr","elf32-avr","elf32-avr")
   3 OUTPUT_ARCH(avr:4)
   4 MEMORY
   5 {
   6   text      (rx)   : ORIGIN = 0, LENGTH = 8K
   7   data      (rw!x) : ORIGIN = 0x800060, LENGTH = 0xffa0
   8   eeprom    (rw!x) : ORIGIN = 0x810000, LENGTH = 64K
   9   fuse      (rw!x) : ORIGIN = 0x820000, LENGTH = 1K
  10   lock      (rw!x) : ORIGIN = 0x830000, LENGTH = 1K
  11   signature (rw!x) : ORIGIN = 0x840000, LENGTH = 1K
  12 }
  13 SECTIONS
  14 {
  15   /* Read-only sections, merged into text segment: */
  16   .hash          : { *(.hash)           }
  17   .dynsym        : { *(.dynsym)         }
  18   .dynstr        : { *(.dynstr)         }
  19   .gnu.version   : { *(.gnu.version)    }
  20   .gnu.version_d   : { *(.gnu.version_d)        }
  21   .gnu.version_r   : { *(.gnu.version_r)        }
  22   .rel.init      : { *(.rel.init)               }
  23   .rela.init     : { *(.rela.init)      }
  24   .rel.text      :
  25     {
  26       *(.rel.text)
  27       *(.rel.text.*)
  28       *(.rel.gnu.linkonce.t*)
  29     }
  30   .rela.text     :
  31     {
  32       *(.rela.text)
  33       *(.rela.text.*)
  34       *(.rela.gnu.linkonce.t*)
  35     }
  36   .rel.fini      : { *(.rel.fini)               }
  37   .rela.fini     : { *(.rela.fini)      }
  38   .rel.rodata    :
  39     {
  40       *(.rel.rodata)
  41       *(.rel.rodata.*)
  42       *(.rel.gnu.linkonce.r*)
  43     }
  44   .rela.rodata   :
  45     {
  46       *(.rela.rodata)
  47       *(.rela.rodata.*)
  48       *(.rela.gnu.linkonce.r*)
  49     }
  50   .rel.data      :
  51     {
  52       *(.rel.data)
  53       *(.rel.data.*)
  54       *(.rel.gnu.linkonce.d*)
  55     }
  56   .rela.data     :
  57     {
  58       *(.rela.data)
  59       *(.rela.data.*)
  60       *(.rela.gnu.linkonce.d*)
  61     }
  62   .rel.ctors     : { *(.rel.ctors)      }
  63   .rela.ctors    : { *(.rela.ctors)     }
  64   .rel.dtors     : { *(.rel.dtors)      }
  65   .rela.dtors    : { *(.rela.dtors)     }
  66   .rel.got       : { *(.rel.got)                }
  67   .rela.got      : { *(.rela.got)               }
  68   .rel.bss       : { *(.rel.bss)                }
  69   .rela.bss      : { *(.rela.bss)               }
  70   .rel.plt       : { *(.rel.plt)                }
  71   .rela.plt      : { *(.rela.plt)               }
  72
  73   /* discard default interrupt jumptable */
  74   /DISCARD/ : { *(.vectors) }
  75
  76   /* Internal text space or external memory.  */
  77   .text   :
  78   {
  79     *(.vectors.bootloader)
  80     KEEP(*(.vectors.bootloader))
  81     /* For data that needs to reside in the lower 64k of progmem.  */
  82     *(.progmem.gcc*)
  83     *(.progmem*)
  84     . = ALIGN(2);
  85      __trampolines_start = . ;
  86     /* The jump trampolines for the 16-bit limited relocs will reside here.  */
  87     *(.trampolines)
  88     *(.trampolines*)
  89      __trampolines_end = . ;
  90     /* For future tablejump instruction arrays for 3 byte pc devices.
  91        We don't relax jump/call instructions within these sections.  */
  92     *(.jumptables)
  93     *(.jumptables*)
  94     /* For code that needs to reside in the lower 128k progmem.  */
  95     *(.lowtext)
  96     *(.lowtext*)
  97      __ctors_start = . ;
  98      *(.ctors)
  99      __ctors_end = . ;
 100      __dtors_start = . ;
 101      *(.dtors)
 102      __dtors_end = . ;
 103     KEEP(SORT(*)(.ctors))
 104     KEEP(SORT(*)(.dtors))
 105     /* From this point on, we don't bother about wether the insns are
 106        below or above the 16 bits boundary.  */
 107     *(.init0)  /* Start here after reset.  */
 108     KEEP (*(.init0))
 109     *(.init1)
 110     KEEP (*(.init1))
 111     *(.init2)  /* Clear __zero_reg__, set up stack pointer.  */
 112     KEEP (*(.init2))
 113     *(.init3)
 114     KEEP (*(.init3))
 115     *(.init4)  /* Initialize data and BSS.  */
 116     KEEP (*(.init4))
 117     *(.init5)
 118     KEEP (*(.init5))
 119     *(.init6)  /* C++ constructors.  */
 120     KEEP (*(.init6))
 121     *(.init7)
 122     KEEP (*(.init7))
 123     *(.init8)
 124     KEEP (*(.init8))
 125     *(.init9)  /* Call main().  */
 126     KEEP (*(.init9))
 127     *(.text)
 128     . = ALIGN(2);
 129     *(.text.*)
 130     . = ALIGN(2);
 131     *(.fini9)  /* _exit() starts here.  */
 132     KEEP (*(.fini9))
 133     *(.fini8)
 134     KEEP (*(.fini8))
 135     *(.fini7)
 136     KEEP (*(.fini7))
 137     *(.fini6)  /* C++ destructors.  */
 138     KEEP (*(.fini6))
 139     *(.fini5)
 140     KEEP (*(.fini5))
 141     *(.fini4)
 142     KEEP (*(.fini4))
 143     *(.fini3)
 144     KEEP (*(.fini3))
 145     *(.fini2)
 146     KEEP (*(.fini2))
 147     *(.fini1)
 148     KEEP (*(.fini1))
 149     *(.fini0)  /* Infinite loop after program termination.  */
 150     KEEP (*(.fini0))
 151      _etext = . ;
 152   }  > text
 153   .data   : AT (ADDR (.text) + SIZEOF (.text))
 154   {
 155      PROVIDE (__data_start = .) ;
 156     *(.data)
 157     *(.data*)
 158     *(.rodata)  /* We need to include .rodata here if gcc is used */
 159     *(.rodata*) /* with -fdata-sections.  */
 160     *(.gnu.linkonce.d*)
 161     . = ALIGN(2);
 162      _edata = . ;
 163      PROVIDE (__data_end = .) ;
 164   }  > data
 165   .bss   : AT (ADDR (.bss))
 166   {
 167      PROVIDE (__bss_start = .) ;
 168     *(.bss)
 169     *(.bss*)
 170     *(COMMON)
 171      PROVIDE (__bss_end = .) ;
 172   }  > data
 173    __data_load_start = LOADADDR(.data);
 174    __data_load_end = __data_load_start + SIZEOF(.data);
 175   /* Global data not cleared after reset.  */
 176   .noinit  :
 177   {
 178      PROVIDE (__noinit_start = .) ;
 179     *(.noinit*)
 180      PROVIDE (__noinit_end = .) ;
 181      _end = . ;
 182      PROVIDE (__heap_start = .) ;
 183   }  > data
 184   .eeprom  :
 185   {
 186     *(.eeprom*)
 187      __eeprom_end = . ;
 188   }  > eeprom
 189   .fuse  :
 190   {
 191     KEEP(*(.fuse))
 192     KEEP(*(.lfuse))
 193     KEEP(*(.hfuse))
 194     KEEP(*(.efuse))
 195   }  > fuse
 196   .lock  :
 197   {
 198     KEEP(*(.lock*))
 199   }  > lock
 200   .signature  :
 201   {
 202     KEEP(*(.signature*))
 203   }  > signature
 204   /* Stabs debugging sections.  */
 205   .stab 0 : { *(.stab) }
 206   .stabstr 0 : { *(.stabstr) }
 207   .stab.excl 0 : { *(.stab.excl) }
 208   .stab.exclstr 0 : { *(.stab.exclstr) }
 209   .stab.index 0 : { *(.stab.index) }
 210   .stab.indexstr 0 : { *(.stab.indexstr) }
 211   .comment 0 : { *(.comment) }
 212   /* DWARF debug sections.
 213      Symbols in the DWARF debugging sections are relative to the beginning
 214      of the section so we begin them at 0.  */
 215   /* DWARF 1 */
 216   .debug          0 : { *(.debug) }
 217   .line           0 : { *(.line) }
 218   /* GNU DWARF 1 extensions */
 219   .debug_srcinfo  0 : { *(.debug_srcinfo) }
 220   .debug_sfnames  0 : { *(.debug_sfnames) }
 221   /* DWARF 1.1 and DWARF 2 */
 222   .debug_aranges  0 : { *(.debug_aranges) }
 223   .debug_pubnames 0 : { *(.debug_pubnames) }
 224   /* DWARF 2 */
 225   .debug_info     0 : { *(.debug_info) *(.gnu.linkonce.wi.*) }
 226   .debug_abbrev   0 : { *(.debug_abbrev) }
 227   .debug_line     0 : { *(.debug_line) }
 228   .debug_frame    0 : { *(.debug_frame) }
 229   .debug_str      0 : { *(.debug_str) }
 230   .debug_loc      0 : { *(.debug_loc) }
 231   .debug_macinfo  0 : { *(.debug_macinfo) }
 232 }