sco5.h

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/* Definitions for Intel 386 running SCO Unix System V 3.2 Version 5.
   Copyright (C) 1992, 95-98, 1999 Free Software Foundation, Inc.
   Contributed by Kean Johnston ([e-mail])

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.  */

#include "i386/i386.h"	/* Base i386 target definitions */
#include "i386/att.h"	/* Use AT&T i386 assembler syntax */

#undef TARGET_VERSION
#define TARGET_VERSION fprintf (stderr, " (i386, SCO OpenServer 5 Syntax)");

#undef LPREFIX
#define LPREFIX				".L"

#undef ALIGN_ASM_OP
#define ALIGN_ASM_OP			"\t.align"

#undef ASCII_DATA_ASM_OP
#define ASCII_DATA_ASM_OP		"\t.ascii"

#undef ASM_BYTE_OP
#define ASM_BYTE_OP			"\t.byte"

#undef IDENT_ASM_OP
#define IDENT_ASM_OP			"\t.ident"

#undef COMMON_ASM_OP
#define COMMON_ASM_OP			"\t.comm"

#undef SET_ASM_OP
#define SET_ASM_OP			"\t.set"

#undef LOCAL_ASM_OP
#define LOCAL_ASM_OP			"\t.local"

#undef INT_ASM_OP
#define INT_ASM_OP			"\t.long"

#undef ASM_SHORT
#define ASM_SHORT			"\t.value"

#undef ASM_LONG
#define ASM_LONG			"\t.long"

#undef ASM_DOUBLE
#define ASM_DOUBLE			"\t.double"

#undef TYPE_ASM_OP
#define TYPE_ASM_OP			"\t.type"

#undef SIZE_ASM_OP
#define SIZE_ASM_OP			"\t.size"

#undef STRING_ASM_OP
#define STRING_ASM_OP			"\t.string"

#undef SKIP_ASM_OP
#define SKIP_ASM_OP			"\t.zero"

#undef GLOBAL_ASM_OP
#define GLOBAL_ASM_OP			"\t.globl"

#undef EH_FRAME_SECTION_ASM_OP
#define EH_FRAME_SECTION_ASM_OP_COFF	"\t.section\t.ehfram, \"x\""
#define EH_FRAME_SECTION_ASM_OP_ELF	"\t.section\t.eh_frame, \"aw\""
#define EH_FRAME_SECTION_ASM_OP	\
  ((TARGET_ELF) ? EH_FRAME_SECTION_ASM_OP_ELF : EH_FRAME_SECTION_ASM_OP_COFF)

/* Avoid problems (long sectino names, forward assembler refs) with DWARF
   exception unwinding when we're generating COFF */
#define DWARF2_UNWIND_INFO	\
  ((TARGET_ELF) ? 1 : 0 )  

#undef CONST_SECTION_ASM_OP
#define CONST_SECTION_ASM_OP_COFF	"\t.section\t.rodata, \"x\""
#define CONST_SECTION_ASM_OP_ELF	"\t.section\t.rodata"
#define CONST_SECTION_ASM_OP	\
  ((TARGET_ELF) ? CONST_SECTION_ASM_OP_ELF : CONST_SECTION_ASM_OP_COFF)

#undef USE_CONST_SECTION
#define USE_CONST_SECTION_ELF		1
#define USE_CONST_SECTION_COFF		0
#define USE_CONST_SECTION	\
 ((TARGET_ELF) ? USE_CONST_SECTION_ELF : USE_CONST_SECTION_COFF)

#undef INIT_SECTION_ASM_OP
#define INIT_SECTION_ASM_OP_ELF		"\t.section\t.init"
#define INIT_SECTION_ASM_OP_COFF	"\t.section\t.init ,\"x\""
#define INIT_SECTION_ASM_OP	\
  ((TARGET_ELF) ? INIT_SECTION_ASM_OP_ELF : INIT_SECTION_ASM_OP_COFF)

#undef CTORS_SECTION_ASM_OP
#define CTORS_SECTION_ASM_OP_ELF	"\t.section\t.ctors,\"aw\""
#define CTORS_SECTION_ASM_OP_COFF	INIT_SECTION_ASM_OP_COFF
#define CTORS_SECTION_ASM_OP	\
 ((TARGET_ELF) ? CTORS_SECTION_ASM_OP_ELF : CTORS_SECTION_ASM_OP_COFF)

#undef DTORS_SECTION_ASM_OP
#define DTORS_SECTION_ASM_OP_ELF	"\t.section\t.dtors, \"aw\""
#define DTORS_SECTION_ASM_OP_COFF	FINI_SECTION_ASM_OP_COFF
#define DTORS_SECTION_ASM_OP	\
 ((TARGET_ELF) ? DTORS_SECTION_ASM_OP_ELF : DTORS_SECTION_ASM_OP_COFF)

#undef FINI_SECTION_ASM_OP
#define FINI_SECTION_ASM_OP_ELF		"\t.section\t.fini"
#define FINI_SECTION_ASM_OP_COFF	"\t.section\t.fini, \"x\""
#define FINI_SECTION_ASM_OP	\
 ((TARGET_ELF) ? FINI_SECTION_ASM_OP_ELF : FINI_SECTION_ASM_OP_COFF)

#undef BSS_SECTION_ASM_OP
#define BSS_SECTION_ASM_OP		"\t.data"

#undef TEXT_SECTION_ASM_OP
#define TEXT_SECTION_ASM_OP		"\t.text"

#undef DATA_SECTION_ASM_OP
#define DATA_SECTION_ASM_OP		"\t.data"

#undef TYPE_OPERAND_FMT
#define TYPE_OPERAND_FMT		"@%s"

#undef APPLY_RESULT_SIZE
#define APPLY_RESULT_SIZE						\
(TARGET_ELF) ? size : 116

#ifndef ASM_DECLARE_RESULT
#define ASM_DECLARE_RESULT(FILE, RESULT)
#endif

#define SCO_DEFAULT_ASM_COFF(FILE,NAME)					\
do {									\
      ASM_OUTPUT_LABEL (FILE, NAME);					\
  } while (0)

#undef ASM_DECLARE_FUNCTION_NAME
#define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL)			\
  do {									\
    if (TARGET_ELF) {							\
      fprintf (FILE, "%s\t ", TYPE_ASM_OP);				\
      assemble_name (FILE, NAME);					\
      putc (',', FILE);							\
      fprintf (FILE, TYPE_OPERAND_FMT, "function");			\
      putc ('\n', FILE);						\
      ASM_DECLARE_RESULT (FILE, DECL_RESULT (DECL));			\
      ASM_OUTPUT_LABEL(FILE, NAME);					\
    } else								\
      SCO_DEFAULT_ASM_COFF(FILE, NAME);					\
} while (0)

#undef ASM_DECLARE_FUNCTION_SIZE
#define ASM_DECLARE_FUNCTION_SIZE(FILE, FNAME, DECL)			\
  do {									\
    if (TARGET_ELF) { if (!flag_inhibit_size_directive)			\
      {									\
	fprintf (FILE, "%s\t ", SIZE_ASM_OP);				\
	assemble_name (FILE, (FNAME));					\
        fprintf (FILE, ",.-");						\
	assemble_name (FILE, (FNAME));					\
	putc ('\n', FILE);						\
      }	}								\
  } while (0)

#undef ASM_DECLARE_OBJECT_NAME
#define ASM_DECLARE_OBJECT_NAME(FILE, NAME, DECL)			\
  do {									\
    if (TARGET_ELF) {							\
      fprintf (FILE, "%s\t ", TYPE_ASM_OP);				\
      assemble_name (FILE, NAME);					\
      putc (',', FILE);							\
      fprintf (FILE, TYPE_OPERAND_FMT, "object");			\
      putc ('\n', FILE);						\
      size_directive_output = 0;					\
      if (!flag_inhibit_size_directive && DECL_SIZE (DECL))		\
        {								\
  	size_directive_output = 1;					\
	fprintf (FILE, "%s\t ", SIZE_ASM_OP);				\
	assemble_name (FILE, NAME);					\
	fprintf (FILE, ",%d\n",  int_size_in_bytes (TREE_TYPE (DECL)));	\
        }								\
      ASM_OUTPUT_LABEL(FILE, NAME);					\
    } else								\
      SCO_DEFAULT_ASM_COFF(FILE, NAME);					\
  } while (0)

#undef ASM_FILE_START_1
#define ASM_FILE_START_1(FILE)

#undef ASM_FILE_START
#define ASM_FILE_START(FILE)						\
do {									\
  output_file_directive((FILE),main_input_filename);			\
  fprintf ((FILE), "\t.version\t\"01.01\"\n");				\
} while (0)

#undef ASM_FILE_END
#define ASM_FILE_END(FILE)						\
do {									\
     if (!flag_no_ident)						\
	fprintf ((FILE), "%s\t\"GCC: (GNU) %s\"\n",			\
		 IDENT_ASM_OP, version_string);				\
} while (0)

#undef ASM_FINISH_DECLARE_OBJECT
#define ASM_FINISH_DECLARE_OBJECT(FILE, DECL, TOP_LEVEL, AT_END)	 \
do {									 \
  if (TARGET_ELF) {							\
     char *name = XSTR (XEXP (DECL_RTL (DECL), 0), 0);			 \
     if (!flag_inhibit_size_directive && DECL_SIZE (DECL)		 \
         && ! AT_END && TOP_LEVEL					 \
	 && DECL_INITIAL (DECL) == error_mark_node			 \
	 && !size_directive_output)					 \
       {								 \
	 size_directive_output = 1;					 \
	 fprintf (FILE, "%s\t ", SIZE_ASM_OP);			 	 \
	 assemble_name (FILE, name);					 \
	 fprintf (FILE, ",%d\n",  int_size_in_bytes (TREE_TYPE (DECL))); \
       }								 \
    }									 \
} while (0)

#undef ASM_GENERATE_INTERNAL_LABEL
#define ASM_GENERATE_INTERNAL_LABEL(LABEL, PREFIX, NUM)			\
do {									\
  if (TARGET_ELF)							\
    sprintf (LABEL, "*.%s%d", (PREFIX), (NUM));				\
  else									\
    sprintf (LABEL, ".%s%d", (PREFIX), (NUM));				\
} while (0)

#undef ASM_OUTPUT_ADDR_DIFF_ELT
#define ASM_OUTPUT_ADDR_DIFF_ELT(FILE, BODY, VALUE, REL) \
do {									\
  if (TARGET_ELF)							\
    fprintf (FILE, "%s _GLOBAL_OFFSET_TABLE_+[.-%s%d]\n", ASM_LONG, LPREFIX, VALUE); \
  else									\
    fprintf (FILE, "\t.word %s%d-%s%d\n", LPREFIX,VALUE,LPREFIX,REL);	\
} while (0)

#undef ASM_OUTPUT_ALIGNED_COMMON
#define ASM_OUTPUT_ALIGNED_COMMON(FILE, NAME, SIZE, ALIGN)		\
do {									\
  fprintf ((FILE), "%s\t", COMMON_ASM_OP);				\
  assemble_name ((FILE), (NAME));					\
  if (TARGET_ELF)							\
    fprintf ((FILE), ",%u,%u\n", (SIZE), (ALIGN) / BITS_PER_UNIT);	\
  else									\
    fprintf ((FILE), ",%u\n", (SIZE));					\
} while (0)

#undef ASM_OUTPUT_ALIGNED_LOCAL
#define ASM_OUTPUT_ALIGNED_LOCAL(FILE, NAME, SIZE, ALIGN)		\
do {									\
  if (TARGET_ELF) {							\
    fprintf ((FILE), "%s\t", LOCAL_ASM_OP);				\
    assemble_name ((FILE), (NAME));					\
    fprintf ((FILE), "\n");						\
    ASM_OUTPUT_ALIGNED_COMMON (FILE, NAME, SIZE, ALIGN);		\
  } else {								\
    int align = exact_log2 (ALIGN);					\
    if (align > 2) align = 2;						\
    if (TARGET_SVR3_SHLIB)						\
      data_section ();							\
    else								\
      bss_section ();							\
    ASM_OUTPUT_ALIGN ((FILE), align == -1 ? 2 : align);			\
    fprintf ((FILE), "%s\t", "\t.lcomm");				\
    assemble_name ((FILE), (NAME));					\
    fprintf ((FILE), ",%u\n", (SIZE));					\
   }									\
} while (0)

/* A C statement (sans semicolon) to output to the stdio stream
   FILE the assembler definition of uninitialized global DECL named
   NAME whose size is SIZE bytes and alignment is ALIGN bytes.
   Try to use asm_output_aligned_bss to implement this macro.  */

#define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \
asm_output_aligned_bss (FILE, DECL, NAME, SIZE, ALIGN)

#undef ESCAPES
#define ESCAPES \
"\1\1\1\1\1\1\1\1btn\1fr\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\
\0\0\"\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\
\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\\\0\0\0\
\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\1\
\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\
\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\
\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\
\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1"

#undef STRING_LIMIT
#define STRING_LIMIT	((unsigned) 256)

#undef ASM_OUTPUT_LIMITED_STRING
#define ASM_OUTPUT_LIMITED_STRING(FILE, STR)				\
  do									\
    {									\
      register unsigned char *_limited_str = (unsigned char *) (STR);	\
      register unsigned ch;						\
      fprintf ((FILE), "%s\t\"", STRING_ASM_OP);			\
      for (; (ch = *_limited_str); _limited_str++)			\
        {								\
	  register int escape;						\
	  switch (escape = ESCAPES[ch])					\
	    {								\
	    case 0:							\
	      putc (ch, (FILE));					\
	      break;							\
	    case 1:							\
	      fprintf ((FILE), "\\%03o", ch);				\