mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-24 11:29:10 +00:00
157 lines
5.3 KiB
C
157 lines
5.3 KiB
C
/* 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).
|
|
Copyright (C) 1992, 1996, 1997, 1998 Free Software Foundation, Inc.
|
|
Contributed by Ron Guilmette (rfg@monkeys.com)
|
|
|
|
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
|
|
|
|
/* 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 is how to output a reference to a user-level label named NAME. */
|
|
|
|
#ifndef ASM_OUTPUT_LABELREF
|
|
#define ASM_OUTPUT_LABELREF(FILE,NAME) asm_fprintf ((FILE), "%U%s", (NAME))
|
|
#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
|
|
|
|
/* If the target supports weak symbols, define TARGET_ATTRIBUTE_WEAK to
|
|
provide a weak attribute. Else define it to nothing.
|
|
|
|
This would normally belong in gansidecl.h, but SUPPORTS_WEAK is
|
|
not available at that time.
|
|
|
|
Note, this is only for use by target files which we know are to be
|
|
compiled by GCC. */
|
|
#ifndef TARGET_ATTRIBUTE_WEAK
|
|
# if SUPPORTS_WEAK
|
|
# define TARGET_ATTRIBUTE_WEAK __attribute__ ((weak))
|
|
# else
|
|
# define TARGET_ATTRIBUTE_WEAK
|
|
# endif
|
|
#endif
|
|
|
|
/* If we have a definition of INCOMING_RETURN_ADDR_RTX, assume that
|
|
the rest of the DWARF 2 frame unwind support is also provided. */
|
|
#if !defined (DWARF2_UNWIND_INFO) && defined (INCOMING_RETURN_ADDR_RTX)
|
|
#define DWARF2_UNWIND_INFO 1
|
|
#endif
|