ld/scripttempl/avr.sc

   1 # Copyright (C) 2014-2016 Free Software Foundation, Inc.
   2 #
   3 # Copying and distribution of this file, with or without modification,
   4 # are permitted in any medium without royalty provided the copyright
   5 # notice and this notice are preserved.
   6
   7 cat <<EOF
   8 /* Copyright (C) 2014-2016 Free Software Foundation, Inc.
   9
  10    Copying and distribution of this script, with or without modification,
  11    are permitted in any medium without royalty provided the copyright
  12    notice and this notice are preserved.  */
  13
  14 OUTPUT_FORMAT("${OUTPUT_FORMAT}","${OUTPUT_FORMAT}","${OUTPUT_FORMAT}")
  15 OUTPUT_ARCH(${ARCH})
  16
  17 __TEXT_REGION_LENGTH__ = DEFINED(__TEXT_REGION_LENGTH__) ? __TEXT_REGION_LENGTH__ : $TEXT_LENGTH;
  18 __DATA_REGION_LENGTH__ = DEFINED(__DATA_REGION_LENGTH__) ? __DATA_REGION_LENGTH__ : $DATA_LENGTH;
  19 __EEPROM_REGION_LENGTH__ = DEFINED(__EEPROM_REGION_LENGTH__) ? __EEPROM_REGION_LENGTH__ : 64K;
  20 __FUSE_REGION_LENGTH__ = DEFINED(__FUSE_REGION_LENGTH__) ? __FUSE_REGION_LENGTH__ : 1K;
  21 __LOCK_REGION_LENGTH__ = DEFINED(__LOCK_REGION_LENGTH__) ? __LOCK_REGION_LENGTH__ : 1K;
  22 __SIGNATURE_REGION_LENGTH__ = DEFINED(__SIGNATURE_REGION_LENGTH__) ? __SIGNATURE_REGION_LENGTH__ : 1K;
  23 __USER_SIGNATURE_REGION_LENGTH__ = DEFINED(__USER_SIGNATURE_REGION_LENGTH__) ? __USER_SIGNATURE_REGION_LENGTH__ : 1K;
  24
  25 MEMORY
  26 {
  27   text   (rx)   : ORIGIN = 0, LENGTH = __TEXT_REGION_LENGTH__
  28   data   (rw!x) : ORIGIN = $DATA_ORIGIN, LENGTH = __DATA_REGION_LENGTH__
  29   eeprom (rw!x) : ORIGIN = 0x810000, LENGTH = __EEPROM_REGION_LENGTH__
  30   fuse      (rw!x) : ORIGIN = 0x820000, LENGTH = __FUSE_REGION_LENGTH__
  31   lock      (rw!x) : ORIGIN = 0x830000, LENGTH = __LOCK_REGION_LENGTH__
  32   signature (rw!x) : ORIGIN = 0x840000, LENGTH = __SIGNATURE_REGION_LENGTH__
  33   user_signatures (rw!x) : ORIGIN = 0x850000, LENGTH = __USER_SIGNATURE_REGION_LENGTH__
  34 }
  35
  36 SECTIONS
  37 {
  38   /* Read-only sections, merged into text segment: */
  39   ${TEXT_DYNAMIC+${DYNAMIC}}
  40   .hash        ${RELOCATING-0} : { *(.hash)             }
  41   .dynsym      ${RELOCATING-0} : { *(.dynsym)           }
  42   .dynstr      ${RELOCATING-0} : { *(.dynstr)           }
  43   .gnu.version ${RELOCATING-0} : { *(.gnu.version)      }
  44   .gnu.version_d ${RELOCATING-0} : { *(.gnu.version_d)  }
  45   .gnu.version_r ${RELOCATING-0} : { *(.gnu.version_r)  }
  46
  47   .rel.init    ${RELOCATING-0} : { *(.rel.init)         }
  48   .rela.init   ${RELOCATING-0} : { *(.rela.init)        }
  49   .rel.text    ${RELOCATING-0} :
  50     {
  51       *(.rel.text)
  52       ${RELOCATING+*(.rel.text.*)}
  53       ${RELOCATING+*(.rel.gnu.linkonce.t*)}
  54     }
  55   .rela.text   ${RELOCATING-0} :
  56     {
  57       *(.rela.text)
  58       ${RELOCATING+*(.rela.text.*)}
  59       ${RELOCATING+*(.rela.gnu.linkonce.t*)}
  60     }
  61   .rel.fini    ${RELOCATING-0} : { *(.rel.fini)         }
  62   .rela.fini   ${RELOCATING-0} : { *(.rela.fini)        }
  63   .rel.rodata  ${RELOCATING-0} :
  64     {
  65       *(.rel.rodata)
  66       ${RELOCATING+*(.rel.rodata.*)}
  67       ${RELOCATING+*(.rel.gnu.linkonce.r*)}
  68     }
  69   .rela.rodata ${RELOCATING-0} :
  70     {
  71       *(.rela.rodata)
  72       ${RELOCATING+*(.rela.rodata.*)}
  73       ${RELOCATING+*(.rela.gnu.linkonce.r*)}
  74     }
  75   .rel.data    ${RELOCATING-0} :
  76     {
  77       *(.rel.data)
  78       ${RELOCATING+*(.rel.data.*)}
  79       ${RELOCATING+*(.rel.gnu.linkonce.d*)}
  80     }
  81   .rela.data   ${RELOCATING-0} :
  82     {
  83       *(.rela.data)
  84       ${RELOCATING+*(.rela.data.*)}
  85       ${RELOCATING+*(.rela.gnu.linkonce.d*)}
  86     }
  87   .rel.ctors   ${RELOCATING-0} : { *(.rel.ctors)        }
  88   .rela.ctors  ${RELOCATING-0} : { *(.rela.ctors)       }
  89   .rel.dtors   ${RELOCATING-0} : { *(.rel.dtors)        }
  90   .rela.dtors  ${RELOCATING-0} : { *(.rela.dtors)       }
  91   .rel.got     ${RELOCATING-0} : { *(.rel.got)          }
  92   .rela.got    ${RELOCATING-0} : { *(.rela.got)         }
  93   .rel.bss     ${RELOCATING-0} : { *(.rel.bss)          }
  94   .rela.bss    ${RELOCATING-0} : { *(.rela.bss)         }
  95   .rel.plt     ${RELOCATING-0} : { *(.rel.plt)          }
  96   .rela.plt    ${RELOCATING-0} : { *(.rela.plt)         }
  97
  98   /* Internal text space or external memory.  */
  99   .text ${RELOCATING-0} :
 100   {
 101     *(.vectors)
 102     KEEP(*(.vectors))
 103
 104     /* For data that needs to reside in the lower 64k of progmem.  */
 105     ${RELOCATING+ *(.progmem.gcc*)}
 106
 107     /* PR 13812: Placing the trampolines here gives a better chance
 108        that they will be in range of the code that uses them.  */
 109     ${RELOCATING+. = ALIGN(2);}
 110     ${CONSTRUCTING+ __trampolines_start = . ; }
 111     /* The jump trampolines for the 16-bit limited relocs will reside here.  */
 112     *(.trampolines)
 113     ${RELOCATING+ *(.trampolines*)}
 114     ${CONSTRUCTING+ __trampolines_end = . ; }
 115
 116     /* avr-libc expects these data to reside in lower 64K. */
 117     ${RELOCATING+ *libprintf_flt.a:*(.progmem.data)}
 118     ${RELOCATING+ *libc.a:*(.progmem.data)}
 119
 120     ${RELOCATING+ *(.progmem*)}
 121
 122     ${RELOCATING+. = ALIGN(2);}
 123
 124     /* For future tablejump instruction arrays for 3 byte pc devices.
 125        We don't relax jump/call instructions within these sections.  */
 126     *(.jumptables)
 127     ${RELOCATING+ *(.jumptables*)}
 128
 129     /* For code that needs to reside in the lower 128k progmem.  */
 130     *(.lowtext)
 131     ${RELOCATING+ *(.lowtext*)}
 132
 133     ${CONSTRUCTING+ __ctors_start = . ; }
 134     ${CONSTRUCTING+ *(.ctors) }
 135     ${CONSTRUCTING+ __ctors_end = . ; }
 136     ${CONSTRUCTING+ __dtors_start = . ; }
 137     ${CONSTRUCTING+ *(.dtors) }
 138     ${CONSTRUCTING+ __dtors_end = . ; }
 139     KEEP(SORT(*)(.ctors))
 140     KEEP(SORT(*)(.dtors))
 141
 142     /* From this point on, we don't bother about wether the insns are
 143        below or above the 16 bits boundary.  */
 144     *(.init0)  /* Start here after reset.  */
 145     KEEP (*(.init0))
 146     *(.init1)
 147     KEEP (*(.init1))
 148     *(.init2)  /* Clear __zero_reg__, set up stack pointer.  */
 149     KEEP (*(.init2))
 150     *(.init3)
 151     KEEP (*(.init3))
 152     *(.init4)  /* Initialize data and BSS.  */
 153     KEEP (*(.init4))
 154     *(.init5)
 155     KEEP (*(.init5))
 156     *(.init6)  /* C++ constructors.  */
 157     KEEP (*(.init6))
 158     *(.init7)
 159     KEEP (*(.init7))
 160     *(.init8)
 161     KEEP (*(.init8))
 162     *(.init9)  /* Call main().  */
 163     KEEP (*(.init9))
 164     *(.text)
 165     ${RELOCATING+. = ALIGN(2);}
 166     ${RELOCATING+ *(.text.*)}
 167     ${RELOCATING+. = ALIGN(2);}
 168     *(.fini9)  /* _exit() starts here.  */
 169     KEEP (*(.fini9))
 170     *(.fini8)
 171     KEEP (*(.fini8))
 172     *(.fini7)
 173     KEEP (*(.fini7))
 174     *(.fini6)  /* C++ destructors.  */
 175     KEEP (*(.fini6))
 176     *(.fini5)
 177     KEEP (*(.fini5))
 178     *(.fini4)
 179     KEEP (*(.fini4))
 180     *(.fini3)
 181     KEEP (*(.fini3))
 182     *(.fini2)
 183     KEEP (*(.fini2))
 184     *(.fini1)
 185     KEEP (*(.fini1))
 186     *(.fini0)  /* Infinite loop after program termination.  */
 187     KEEP (*(.fini0))
 188     ${RELOCATING+ _etext = . ; }
 189   } ${RELOCATING+ > text}
 190
 191   .data        ${RELOCATING-0} :
 192   {
 193     ${RELOCATING+ PROVIDE (__data_start = .) ; }
 194     *(.data)
 195     ${RELOCATING+ *(.data*)}
 196     *(.rodata)  /* We need to include .rodata here if gcc is used */
 197     ${RELOCATING+ *(.rodata*)} /* with -fdata-sections.  */
 198     *(.gnu.linkonce.d*)
 199     ${RELOCATING+. = ALIGN(2);}
 200     ${RELOCATING+ _edata = . ; }
 201     ${RELOCATING+ PROVIDE (__data_end = .) ; }
 202   } ${RELOCATING+ > data ${RELOCATING+AT> text}}
 203
 204   .bss ${RELOCATING+ ADDR(.data) + SIZEOF (.data)} ${RELOCATING-0} :${RELOCATING+ AT (ADDR (.bss))}
 205   {
 206     ${RELOCATING+ PROVIDE (__bss_start = .) ; }
 207     *(.bss)
 208     ${RELOCATING+ *(.bss*)}
 209     *(COMMON)
 210     ${RELOCATING+ PROVIDE (__bss_end = .) ; }
 211   } ${RELOCATING+ > data}
 212
 213   ${RELOCATING+ __data_load_start = LOADADDR(.data); }
 214   ${RELOCATING+ __data_load_end = __data_load_start + SIZEOF(.data); }
 215
 216   /* Global data not cleared after reset.  */
 217   .noinit ${RELOCATING+ ADDR(.bss) + SIZEOF (.bss)} ${RELOCATING-0}: ${RELOCATING+ AT (ADDR (.noinit))}
 218   {
 219     ${RELOCATING+ PROVIDE (__noinit_start = .) ; }
 220     *(.noinit*)
 221     ${RELOCATING+ PROVIDE (__noinit_end = .) ; }
 222     ${RELOCATING+ _end = . ;  }
 223     ${RELOCATING+ PROVIDE (__heap_start = .) ; }
 224   } ${RELOCATING+ > data}
 225
 226   .eeprom ${RELOCATING-0}:
 227   {
 228     /* See .data above...  */
 229     KEEP(*(.eeprom*))
 230     ${RELOCATING+ __eeprom_end = . ; }
 231   } ${RELOCATING+ > eeprom}
 232
 233   .fuse ${RELOCATING-0}:
 234   {
 235     KEEP(*(.fuse))
 236     KEEP(*(.lfuse))
 237     KEEP(*(.hfuse))
 238     KEEP(*(.efuse))
 239   } ${RELOCATING+ > fuse}
 240
 241   .lock ${RELOCATING-0}:
 242   {
 243     KEEP(*(.lock*))
 244   } ${RELOCATING+ > lock}
 245
 246   .signature ${RELOCATING-0}:
 247   {
 248     KEEP(*(.signature*))
 249   } ${RELOCATING+ > signature}
 250
 251   /* Stabs debugging sections.  */
 252   .stab 0 : { *(.stab) }
 253   .stabstr 0 : { *(.stabstr) }
 254   .stab.excl 0 : { *(.stab.excl) }
 255   .stab.exclstr 0 : { *(.stab.exclstr) }
 256   .stab.index 0 : { *(.stab.index) }
 257   .stab.indexstr 0 : { *(.stab.indexstr) }
 258   .comment 0 : { *(.comment) }
 259   .note.gnu.build-id : { *(.note.gnu.build-id) }
 260 EOF
 261
 262 . $srcdir/scripttempl/DWARF.sc
 263
 264 cat <<EOF
 265 }
 266 EOF