ld/scripttempl/ip2k.sc

   1 # Copyright (C) 2014-2022 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 # Using an empty script for ld -r is better than mashing together
   8 # sections.  This hack likely leaves ld -Ur broken.
   9 test -n "${RELOCATING}" || exit 0
  10 cat << EOF
  11 /* Copyright (C) 2014-2022 Free Software Foundation, Inc.
  12
  13    Copying and distribution of this script, with or without modification,
  14    are permitted in any medium without royalty provided the copyright
  15    notice and this notice are preserved.  */
  16
  17 OUTPUT_FORMAT("elf32-ip2k", "elf32-ip2k", "elf32-ip2k")
  18 OUTPUT_ARCH(ip2k)
  19 ${RELOCATING+ENTRY(_start)}
  20 SEARCH_DIR(.);
  21
  22 /* IP2022 default linker script.  */
  23
  24 MEMORY
  25 {
  26         D_GPR    : org = 0x01000080, len = 128
  27         D_RAM    : org = 0x01000100, len = 4K - 256
  28         P_RAM    : org = 0x02000000, len = 16K
  29         P_ROM    : org = 0x02010000, len = 64K - 32
  30         P_RESET  : org = 0x0201FFE0, len = 32
  31         P_CONFIG : org = 0x02020000, len = 128
  32 }
  33
  34 SECTIONS
  35 {
  36         /* Allocated memory end markers
  37            (initialized to start of appropriate memory address).  */
  38         __data_end  = 0x01000100;
  39         __pram_end  = 0x02000000;
  40         __flash_end = 0x02010000;
  41
  42         /* Global general purpose registers in direct addressing range.  */
  43         .gpr 0x01000080 :
  44         {
  45                 *(.gpr)
  46         } >D_GPR
  47
  48         /* Pre-allocated, pre-initialized data memory.  */
  49         __data_run_begin = __data_end;
  50         __data_load_begin = (__flash_end + 1) & 0xFFFFFFFE;
  51         .data __data_run_begin : AT (__data_load_begin)
  52         {
  53                 * (.data);
  54                 * (.rodata)
  55         } >D_RAM
  56         __data_run_end  = __data_run_begin  + SIZEOF(.data);
  57         __data_load_end = __data_load_begin + SIZEOF(.data);
  58         __data_end      = __data_run_end;
  59         __flash_end     = __data_load_end;
  60
  61         /* Pre-allocated, uninitialized data memory.  */
  62         __bss_begin = __data_end;
  63         .bss __bss_begin :
  64         {
  65                 * (.bss)
  66         } >D_RAM
  67         __bss_end  = __bss_begin + SIZEOF(.bss);
  68         __data_end = __bss_end;
  69
  70         /* Pre-allocated PRAM data memory.  */
  71         __pram_data_begin = (__pram_end + 1) & 0xFFFFFFFE;
  72         .pram_data __pram_data_begin :
  73         {
  74                 * (.pram_data)
  75         } >P_RAM
  76         __pram_data_end = __pram_data_begin + SIZEOF(.pram_data);
  77         __pram_end      = __pram_data_end;
  78
  79         /* PRAM code.  */
  80         __pram_run_begin  = (__pram_end + 1) & 0xFFFFFFFE;
  81         __pram_load_begin = (__flash_end + 1) & 0xFFFFFFFE;
  82         .pram __pram_run_begin : AT (__pram_load_begin)
  83         {
  84                 * (.pram)
  85         } >P_RAM
  86         __pram_run_end  = __pram_run_begin  + SIZEOF(.pram);
  87         __pram_load_end = __pram_load_begin + SIZEOF(.pram);
  88
  89         __pram_load_shift = ((__pram_run_begin - __pram_load_begin) & 0x1FFFF) | 0x02000000;
  90         __pram_end  = __pram_run_end;
  91         __flash_end = __pram_load_end;
  92
  93         /* PRAM overlay code.  */
  94         __pram_overlay_run_start  = (__pram_end  + 1) & 0xFFFFFFFE;
  95         __pram_overlay_load_start = (__flash_end + 1) & 0xFFFFFFFE;
  96         OVERLAY __pram_overlay_run_start : AT (__pram_overlay_load_start)
  97         {
  98                 .pram1 { */overlay1/* (.pram); * (.pram1) }
  99                 .pram2 { */overlay2/* (.pram); * (.pram2) }
 100         } >P_RAM
 101         __pram_overlay_run_end = .;
 102         __pram_overlay_load_end = __pram_overlay_load_start + SIZEOF(.pram1) + SIZEOF(.pram2);
 103         __pram_end  = __pram_overlay_run_end;
 104         __flash_end = __pram_overlay_load_end;
 105
 106         /* Flash code.  */
 107         __text_begin = (__flash_end + 1) & 0xFFFFFFFE;
 108         .text __text_begin :
 109         {
 110                 * (.text);
 111                 * (.text.libgcc)
 112         } >P_ROM = 0xffff
 113         __text_end  = __text_begin + SIZEOF(.text);
 114         __flash_end = __text_end;
 115
 116         /* Strings.  */
 117         __strings_begin = (__flash_end + 1) & 0xFFFFFFFE;
 118         .strings __strings_begin :
 119         {
 120                 * (strings);
 121                 * (.progmem.data)
 122         } >P_ROM = 0xffff
 123         __strings_end = __strings_begin + SIZEOF (.strings);
 124         __flash_end   = __strings_end;
 125
 126         .ctors : { * (.ctors) } > P_ROM
 127         .dtors : { * (.dtors) } > P_ROM
 128
 129         /* Reset code.  */
 130         .reset  : { * (.reset)  } >P_RESET  = 0xffff
 131
 132         /* Configuration block.  */
 133         .config : { * (.config) } >P_CONFIG = 0xffff
 134
 135         /* Stack.  */
 136         PROVIDE (__stack = 0x01000FFF);
 137
 138         /* Stabs debugging sections.  */
 139         .stab           0 : { *(.stab) }
 140         .stabstr        0 : { *(.stabstr) }
 141         .stab.excl      0 : { *(.stab.excl) }
 142         .stab.exclstr   0 : { *(.stab.exclstr) }
 143         .stab.index     0 : { *(.stab.index) }
 144         .stab.indexstr  0 : { *(.stab.indexstr) }
 145         .comment        0 : { *(.comment) }
 146
 147 EOF
 148
 149 . $srcdir/scripttempl/DWARF.sc
 150
 151 cat <<EOF
 152 }
 153 EOF