ld/emultempl/z80.em

   1 # This shell script emits C code -*- C -*-
   2 # to keep track of the machine type of Z80 object files
   3 # It does some substitutions.
   4
   5 LDEMUL_BEFORE_PARSE=gldz80_before_parse
   6 LDEMUL_RECOGNIZED_FILE=gldz80_recognized_file
   7 LDEMUL_AFTER_OPEN=gldz80_after_open
   8
   9 cat >>e${EMULATION_NAME}.c <<EOF
  10 /* --- \begin{z80.em} */
  11 /* Codes for machine types, bitwise or gives the code to use for the
  12    output.  */
  13 #define M_Z80STRICT 1
  14 #define M_Z80 3
  15 #define M_Z80FULL 7
  16 #define M_R800 11
  17 #define M_Z80ANY 15
  18
  19 /* Bitwise or of the machine types seen so far.  */
  20 static int result_mach_type;
  21
  22 static void
  23 ${LDEMUL_BEFORE_PARSE} (void)
  24 {
  25 #ifndef TARGET_                 /* I.e., if not generic.  */
  26   ldfile_set_output_arch ("`echo ${ARCH}`", bfd_arch_unknown);
  27 #endif /* not TARGET_ */
  28   result_mach_type = M_Z80STRICT;
  29 }
  30
  31
  32 /* Update result_mach_type.  */
  33 static bfd_boolean
  34 ${LDEMUL_RECOGNIZED_FILE} (lang_input_statement_type *entry)
  35 {
  36   unsigned long mach_type;
  37
  38   mach_type = bfd_get_mach (entry->the_bfd);
  39   switch (mach_type)
  40     {
  41     case bfd_mach_z80strict:
  42       result_mach_type |= M_Z80STRICT;
  43       break;
  44     case bfd_mach_z80:
  45       result_mach_type |= M_Z80;
  46       break;
  47     case bfd_mach_z80full:
  48       result_mach_type |= M_Z80FULL;
  49       break;
  50     case bfd_mach_r800:
  51       result_mach_type |= M_R800;
  52       break;
  53     default:
  54       result_mach_type |= M_Z80ANY;
  55     }
  56   return FALSE;
  57 }
  58
  59 /* Set the machine type of the output file based on result_mach_type.  */
  60 static void
  61 gldz80_after_open (void)
  62 {
  63   unsigned long mach_type;
  64
  65   switch (result_mach_type)
  66     {
  67     case M_Z80STRICT:
  68       mach_type = bfd_mach_z80strict;
  69       break;
  70     case M_Z80:
  71       mach_type = bfd_mach_z80;
  72       break;
  73     case M_Z80FULL:
  74       mach_type = bfd_mach_z80full;
  75       break;
  76     case M_R800:
  77       mach_type = bfd_mach_r800;
  78       break;
  79     default:
  80       mach_type = 0;
  81     }
  82   bfd_set_arch_mach (output_bfd, bfd_arch_z80, mach_type);
  83 }
  84 /* --- \end{z80.em} */
  85 EOF