ld/emulparams/elf32mcore.sh

   1 SCRIPT_NAME=elf
   2 OUTPUT_FORMAT="elf32-mcore-little"
   3 BIG_OUTPUT_FORMAT="elf32-mcore-big"
   4 LITTLE_OUTPUT_FORMAT="elf32-mcore-little"
   5 PAGE_SIZE=0x1000
   6 TARGET_PAGE_SIZE=0x400
   7 MAXPAGESIZE=0x1000
   8 TEXT_START_ADDR=0
   9 NONPAGED_TEXT_START_ADDR=0
  10 ARCH=mcore
  11 EMBEDDED=yes
  12
  13 # There is a problem with the NOP value - it must work for both
  14 # big endian and little endian systems.  Unfortunately there is
  15 # no symmetrical mcore opcode that functions as a noop.  The
  16 # chosen solution is to use "tst r0, r14".  This is a symetrical
  17 # value, and apart from the corruption of the C bit, it has no other
  18 # side effects.  Since the carry bit is never tested without being
  19 # explicitly set first, and since the NOP code is only used as a
  20 # fill value between independantly viable peices of code, it should
  21 # not matter.
  22 NOP=0x0e0e
  23
  24 OTHER_BSS_SYMBOLS="__bss_start__ = . ;"
  25 OTHER_BSS_END_SYMBOLS="__bss_end__ = . ;"
  26
  27 # Hmmm, there's got to be a better way.  This sets the stack to the
  28 # top of the simulator memory (2^19 bytes).
  29 OTHER_RELOCATING_SECTIONS='.stack 0x80000 : { _stack = .; *(.stack) }'
  30
  31 TEMPLATE_NAME=elf32
  32 GENERATE_SHLIB_SCRIPT=yes
  33
  34 # This code gets inserted into the generic elf32.sc linker script
  35 # and allows us to define our own command line switches.
  36 PARSE_AND_LIST_ARGS='
  37
  38 #define OPTION_BASE_FILE                300
  39
  40 static struct option longopts[] =
  41 {
  42   {"base-file", required_argument, NULL, OPTION_BASE_FILE},
  43   {NULL, no_argument, NULL, 0}
  44 };
  45
  46 static void
  47 gld_elf32mcore_list_options (file)
  48      FILE * file;
  49 {
  50   fprintf (file, _("  --base_file <basefile>      Generate a base file for relocatable DLLs\n"));
  51 }
  52
  53 static int
  54 gld_elf32mcore_parse_args (argc, argv)
  55      int argc;
  56      char ** argv;
  57 {
  58   int        longind;
  59   int        optc;
  60   int        prevoptind = optind;
  61   int        prevopterr = opterr;
  62   int        wanterror;
  63   static int lastoptind = -1;
  64
  65   if (lastoptind != optind)
  66     opterr = 0;
  67
  68   wanterror  = opterr;
  69   lastoptind = optind;
  70
  71   optc   = getopt_long_only (argc, argv, "-", longopts, & longind);
  72   opterr = prevopterr;
  73
  74   switch (optc)
  75     {
  76     default:
  77       if (wanterror)
  78         xexit (1);
  79       optind =  prevoptind;
  80       return 0;
  81
  82     case OPTION_BASE_FILE:
  83       link_info.base_file = (PTR) fopen (optarg, FOPEN_WB);
  84       if (link_info.base_file == NULL)
  85         {
  86           /* xgettext:c-format */
  87           fprintf (stderr, _("%s: Cannot open base file %s\n"),
  88                    program_name, optarg);
  89           xexit (1);
  90         }
  91       break;
  92     }
  93
  94   return 1;
  95 }
  96
  97 '