237 lines
7.4 KiB
C
237 lines
7.4 KiB
C
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/* Target definitions for GNU compiler for Intel 80860 running OSF/1AD
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Copyright (C) 1991, 1996 Free Software Foundation, Inc.
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Based upon original work of Ron Guilmette (rfg@monkeys.com).
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Contributed by Andy Pfiffer (andyp@ssd.intel.com).
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Partially inspired by
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Pete Beckman of Indiana University (beckman@cs.indiana.edu)
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Harry Dolan of Intel Corporation (dolan@ssd.intel.com)
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This file is part of GNU CC.
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GNU CC is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU CC is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU CC; see the file COPYING. If not, write to
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the Free Software Foundation, 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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/* For the sake of libgcc2.c, indicate target supports atexit. */
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#define HAVE_ATEXIT
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#undef TARGET_SWITCHES
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#define TARGET_SWITCHES \
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{ {"xp", 1}, \
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{"noxp", -1}, \
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{"xr", -1}, \
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{"noieee", -1}, \
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{"nx", 2}, \
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{ "", TARGET_DEFAULT}}
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#undef TARGET_DEFAULT
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#define TARGET_DEFAULT 1
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/* The Intel as860 assembler does not understand .stabs, must use COFF */
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#define PREFERRED_DEBUGGING_TYPE SDB_DEBUG
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#undef TARGET_VERSION
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#define TARGET_VERSION fprintf (stderr, " (i860 OSF/1AD)");
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#undef CPP_PREDEFINES
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#define CPP_PREDEFINES "-Di860 -D__i860 -D__i860__ -D__PARAGON__ -D__OSF1__ -D_COFF -Dunix -DMACH -DCMU"
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#define CPP_SPEC "%{mnx:-D__NODE}"
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/* autoinit.o autolaunches NX applications */
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#define STARTFILE_SPEC "crt0.o%s %{mnx:-yoptions/autoinit.o%s}"
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/* libic.a is the PGI intrinsic library */
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/* libpm.o and guard.o are for the performance monitoring modules (ignored) */
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/* /usr/lib/noieee contains non-IEEE compliant (but faster) math routines */
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#if HAVE_DASH_G
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#define LIB_SPEC \
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"%{mnoieee:-L/usr/lib/noieee} %{mnx:-lnx} %{g*:-lg} -lc -lmach -lc -lic"
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#else /* HAVE_DASH_G */
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/* can't use -g for -lg; libg.a doesn't have a symbol table and ld complains */
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#define LIB_SPEC "%{mnoieee:-L/usr/lib/noieee} %{mnx:-lnx} -lc -lmach -lc -lic"
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#endif /* HAVE_DASH_G */
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/* Get rid of definition from svr3.h. */
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#undef SIZE_TYPE
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#undef I860_REG_PREFIX
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#undef ASM_COMMENT_START
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#define ASM_COMMENT_START "//"
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#undef TYPE_OPERAND_FMT
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#define TYPE_OPERAND_FMT "\"%s\""
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#define DBX_REGISTER_NUMBER(REGNO) (REGNO)
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#undef ASCII_DATA_ASM_OP
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#define ASCII_DATA_ASM_OP ".byte"
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/*
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* the assembler we're using doesn't grok .ident...
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*/
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#undef ASM_OUTPUT_IDENT
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#define ASM_OUTPUT_IDENT(FILE, NAME) \
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fprintf (FILE, "//\t.ident \"%s\"\n", NAME);
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/*
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* the assembler doesn't grok .double INF and the like
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* but does understand .long with hex numbers, so special
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* case the "symbolic" IEEE numbers.
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*/
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#undef ASM_OUTPUT_DOUBLE
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#define ASM_OUTPUT_DOUBLE(FILE,VALUE) \
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{ \
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if (REAL_VALUE_ISINF (VALUE) \
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|| REAL_VALUE_ISNAN (VALUE) \
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|| REAL_VALUE_MINUS_ZERO (VALUE)) \
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{ \
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long t[2]; \
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REAL_VALUE_TO_TARGET_DOUBLE ((VALUE), t); \
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fprintf (FILE, "\t.long 0x%lx\n\t.long 0x%lx\n", t[0], t[1]); \
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} \
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else \
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fprintf (FILE, "\t.double %.20e\n", VALUE); \
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}
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#undef ASM_OUTPUT_FLOAT
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#define ASM_OUTPUT_FLOAT(FILE,VALUE) \
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{ \
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if (REAL_VALUE_ISINF (VALUE) \
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|| REAL_VALUE_ISNAN (VALUE) \
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|| REAL_VALUE_MINUS_ZERO (VALUE)) \
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{ \
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long t; \
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REAL_VALUE_TO_TARGET_SINGLE ((VALUE), t); \
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fprintf (FILE, "\t.long 0x%lx\n", t); \
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} \
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else \
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fprintf (FILE, "\t.float %.12e\n", VALUE); \
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}
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#undef ASM_OUTPUT_ASCII
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#define ASM_OUTPUT_ASCII(FILE, STR, LENGTH) \
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do \
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{ \
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register unsigned char *str = (unsigned char *) (STR); \
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register unsigned char *limit = str + (LENGTH); \
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register unsigned bytes_in_chunk = 0; \
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for (; str < limit; str++) \
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{ \
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register unsigned ch = *str; \
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if (ch < 32 || ch == '\\' || ch == '"' || ch >= 127) \
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{ \
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if (bytes_in_chunk > 0) \
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{ \
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fprintf ((FILE), "\"\n"); \
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bytes_in_chunk = 0; \
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} \
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fprintf ((FILE), "\t%s\t%d\n", ASM_BYTE_OP, ch); \
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} \
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else \
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{ \
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if (bytes_in_chunk >= 60) \
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{ \
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fprintf ((FILE), "\"\n"); \
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bytes_in_chunk = 0; \
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} \
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if (bytes_in_chunk == 0) \
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fprintf ((FILE), "\t%s\t\"", ASCII_DATA_ASM_OP);\
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putc (ch, (FILE)); \
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bytes_in_chunk++; \
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} \
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} \
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if (bytes_in_chunk > 0) \
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fprintf ((FILE), "\"\n"); \
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} \
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while (0)
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/* This says how to output an assembler line
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to define a local common symbol. */
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#undef ASM_OUTPUT_LOCAL
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#define ASM_OUTPUT_LOCAL(FILE, NAME, SIZE, ROUNDED) \
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( fputs (".lcomm ", (FILE)), \
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assemble_name ((FILE), (NAME)), \
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fprintf ((FILE), ",%u\n", (ROUNDED)))
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/*
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* not defining ASM_STABS_OP yields .stabs in the .s file
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* when using g++ -- so, I'll define it.
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*/
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#define ASM_STABS_OP "//.stabs"
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/* Define this macro if an argument declared as `char' or `short' in a
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prototype should actually be passed as an `int'. In addition to
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avoiding errors in certain cases of mismatch, it also makes for
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better code on certain machines. */
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/*#define PROMOTE_PROTOTYPES*/
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/* Define this macro if an instruction to load a value narrower
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than a word from memory into a register also zero-extends the
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value to the whole register. */
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/*#define BYTE_LOADS_ZERO_EXTEND*/
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/* Define this macro as a C expression which is nonzero if
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accessing less than a word of memory (i.e. a `char' or a
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`short') is no faster than accessing a word of memory, i.e., if
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such access require more than one instruction or if there is no
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difference in cost between byte and (aligned) word loads.
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On RISC machines, it tends to generate better code to define
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this as 1, since it avoids making a QI or HI mode register. */
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/*
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#undef SLOW_BYTE_ACCESS
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#define SLOW_BYTE_ACCESS 1
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*/
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/* Define if shifts truncate the shift count
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which implies one can omit a sign-extension or zero-extension
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of a shift count. */
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#define SHIFT_COUNT_TRUNCATED 1
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#define FASTEST_ALIGNMENT 32
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/* Make strings word-aligned so strcpy from constants will be faster. */
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#define CONSTANT_ALIGNMENT(EXP, ALIGN) \
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(TREE_CODE (EXP) == STRING_CST \
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&& (ALIGN) < FASTEST_ALIGNMENT ? FASTEST_ALIGNMENT : (ALIGN))
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/* Make arrays of chars word-aligned for the same reasons. */
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#define DATA_ALIGNMENT(TYPE, ALIGN) \
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(TREE_CODE (TYPE) == ARRAY_TYPE \
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&& TYPE_MODE (TREE_TYPE (TYPE)) == QImode \
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&& (ALIGN) < FASTEST_ALIGNMENT ? FASTEST_ALIGNMENT : (ALIGN))
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/*
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* disable a few things picked up from svr3.h
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*/
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#undef INIT_SECTION_ASM_OP
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#undef FINI_SECTION_ASM_OP
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#undef CONST_SECTION_ASM_OP
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#undef CTORS_SECTION_ASM_OP
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#undef DTORS_SECTION_ASM_OP
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#undef DO_GLOBAL_CTORS_BODY
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#undef ASM_OUTPUT_DESTRUCTOR
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#undef SELECT_SECTION
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#undef SELECT_RTX_SECTION
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#undef READONLY_DATA_SECTION
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#define BSS_SECTION_ASM_OP ".bss" /* XXX */
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#undef EXTRA_SECTIONS
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#undef EXTRA_SECTION_FUNCTIONS
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