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defaults.h
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1995-06-15
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/* 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@netcom.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, 59 Temple Place - Suite 330,
Boston, MA 02111-1307, 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_OUTPUT_INTERNAL_LABEL (FILE, "L", (VALUE)); \
fputc ('-', FILE); \
ASM_OUTPUT_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
/* This is how we tell the assembler to equate two values. */
#ifdef SET_ASM_OP
#ifndef ASM_OUTPUT_DEF
#define ASM_OUTPUT_DEF(FILE,LABEL1,LABEL2) \
do { fprintf ((FILE), "\t%s\t", SET_ASM_OP); \
assemble_name (FILE, LABEL1); \
fprintf (FILE, ","); \
assemble_name (FILE, LABEL2); \
fprintf (FILE, "\n"); \
} while (0)
#endif
#endif
/* This determines whether or not we support weak symbols. */
#ifndef SUPPORTS_WEAK
#ifdef ASM_WEAKEN_LABEL
#define SUPPORTS_WEAK 1
#else
#define SUPPORTS_WEAK 0
#endif
#endif