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[unix-history] / gnu / usr.bin / cc / common / defaults.h

/* Definitions of various defaults for how to do assembler output
  (most of which are designed to be appropriate for GAS or for
  some BSD assembler).

  Written by Ron Guilmette (rfg@ncd.com)

Copyright (C) 1992 Free Software Foundation, Inc.

This file is part of GNU CC.

GNU CC is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.

GNU CC is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with GNU CC; see the file COPYING.  If not, write to
the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */

/* Store in OUTPUT a string (made with alloca) containing
  an assembler-name for a local static variable or function named NAME.
  LABELNO is an integer which is different for each call.  */

#ifndef ASM_FORMAT_PRIVATE_NAME
#define ASM_FORMAT_PRIVATE_NAME(OUTPUT, NAME, LABELNO)                  \
 do {                                                                  \
   int len = strlen (NAME);                                            \
   char *temp = (char *) alloca (len + 3);                             \
   temp[0] = 'L';                                                      \
   strcpy (&temp[1], (NAME));                                          \
   temp[len + 1] = '.';                                                \
   temp[len + 2] = 0;                                                  \
   (OUTPUT) = (char *) alloca (strlen (NAME) + 11);                    \
   ASM_GENERATE_INTERNAL_LABEL (OUTPUT, temp, LABELNO);                \
 } while (0)
#endif

#ifndef ASM_STABD_OP
#define ASM_STABD_OP ".stabd"
#endif

/* This is how to output an element of a case-vector that is absolute.
  Some targets don't use this, but we have to define it anyway.  */

#ifndef ASM_OUTPUT_ADDR_VEC_ELT
#define ASM_OUTPUT_ADDR_VEC_ELT(FILE, VALUE)  \
do { fprintf (FILE, "\t%s\t", ASM_LONG);                                \
    ASM_OUTPUT_INTERNAL_LABEL (FILE, "L", (VALUE));                    \
    fputc ('\n', FILE);                                                \
  } while (0)
#endif

/* This is how to output an element of a case-vector that is relative.
  Some targets don't use this, but we have to define it anyway.  */

#ifndef ASM_OUTPUT_ADDR_DIFF_ELT
#define ASM_OUTPUT_ADDR_DIFF_ELT(FILE, VALUE, REL) \
do { fprintf (FILE, "\t%s\t", ASM_SHORT);                               \
    ASM_GENERATE_INTERNAL_LABEL (FILE, "L", (VALUE));                  \
    fputc ('-', FILE);                                                 \
    ASM_GENERATE_INTERNAL_LABEL (FILE, "L", (REL));                    \
    fputc ('\n', FILE);                                                \
  } while (0)
#endif

/* choose a reasonable default for ASM_OUTPUT_ASCII.  */

#ifndef ASM_OUTPUT_ASCII
#define ASM_OUTPUT_ASCII(MYFILE, MYSTRING, MYLENGTH) \
 do {                                                                        \
   FILE *_hide_asm_out_file = (MYFILE);                                      \
   unsigned char *_hide_p = (unsigned char *) (MYSTRING);                    \
   int _hide_thissize = (MYLENGTH);                                          \
   {                                                                         \
     FILE *asm_out_file = _hide_asm_out_file;                                \
     unsigned char *p = _hide_p;                                             \
     int thissize = _hide_thissize;                                          \
     int i;                                                                  \
     fprintf (asm_out_file, "\t.ascii \"");                                  \
                                                                             \
     for (i = 0; i < thissize; i++)                                          \
       {                                                                     \
         register int c = p[i];                                              \
         if (c == '\"' || c == '\\')                                         \
           putc ('\\', asm_out_file);                                        \
         if (c >= ' ' && c < 0177)                                           \
           putc (c, asm_out_file);                                           \
         else                                                                \
           {                                                                 \
             fprintf (asm_out_file, "\\%o", c);                              \
             /* After an octal-escape, if a digit follows,                   \
                terminate one string constant and start another.             \
                The Vax assembler fails to stop reading the escape           \
                after three digits, so this is the only way we               \
                can get it to parse the data properly.  */                   \
             if (i < thissize - 1                                            \
                 && p[i + 1] >= '0' && p[i + 1] <= '9')                      \
               fprintf (asm_out_file, "\"\n\t.ascii \"");                    \
         }                                                                   \
       }                                                                     \
     fprintf (asm_out_file, "\"\n");                                         \
   }                                                                         \
 }                                                                           \
 while (0)
#endif

#ifndef ASM_IDENTIFY_GCC
 /* Default the definition, only if ASM_IDENTIFY_GCC is not set,
    because if it is set, we might not want ASM_IDENTIFY_LANGUAGE
    outputting labels, if we do want it to, then it must be defined
    in the tm.h file.  */
#ifndef ASM_IDENTIFY_LANGUAGE
#define ASM_IDENTIFY_LANGUAGE(FILE) output_lang_identify (FILE);
#endif
#endif