| /* Target definitions for GNU compiler for Intel 80860 running OSF/1AD |
| Copyright (C) 1991, 1996 Free Software Foundation, Inc. |
| Based upon original work of Ron Guilmette (rfg@monkeys.com). |
| Contributed by Andy Pfiffer (andyp@ssd.intel.com). |
| Partially inspired by |
| Pete Beckman of Indiana University (beckman@cs.indiana.edu) |
| Harry Dolan of Intel Corporation (dolan@ssd.intel.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. */ |
| |
| /* For the sake of libgcc2.c, indicate target supports atexit. */ |
| #define HAVE_ATEXIT |
| |
| #undef TARGET_SWITCHES |
| #define TARGET_SWITCHES \ |
| { {"xp", 1}, \ |
| {"noxp", -1}, \ |
| {"xr", -1}, \ |
| {"noieee", -1}, \ |
| {"nx", 2}, \ |
| { "", TARGET_DEFAULT}} |
| |
| #undef TARGET_DEFAULT |
| #define TARGET_DEFAULT 1 |
| |
| /* The Intel as860 assembler does not understand .stabs, must use COFF */ |
| #define PREFERRED_DEBUGGING_TYPE SDB_DEBUG |
| |
| #undef TARGET_VERSION |
| #define TARGET_VERSION fprintf (stderr, " (i860 OSF/1AD)"); |
| |
| #undef CPP_PREDEFINES |
| #define CPP_PREDEFINES "-Di860 -D__i860 -D__i860__ -D__PARAGON__ -D__OSF1__ -D_COFF -Dunix -DMACH -DCMU" |
| |
| #define CPP_SPEC "%{mnx:-D__NODE}" |
| |
| /* autoinit.o autolaunches NX applications */ |
| #define STARTFILE_SPEC "crt0.o%s %{mnx:-yoptions/autoinit.o%s}" |
| |
| /* libic.a is the PGI intrinsic library */ |
| /* libpm.o and guard.o are for the performance monitoring modules (ignored) */ |
| /* /usr/lib/noieee contains non-IEEE compliant (but faster) math routines */ |
| #if HAVE_DASH_G |
| #define LIB_SPEC \ |
| "%{mnoieee:-L/usr/lib/noieee} %{mnx:-lnx} %{g*:-lg} -lc -lmach -lc -lic" |
| #else /* HAVE_DASH_G */ |
| /* can't use -g for -lg; libg.a doesn't have a symbol table and ld complains */ |
| #define LIB_SPEC "%{mnoieee:-L/usr/lib/noieee} %{mnx:-lnx} -lc -lmach -lc -lic" |
| #endif /* HAVE_DASH_G */ |
| |
| /* Get rid of definition from svr3.h. */ |
| #undef SIZE_TYPE |
| |
| #undef I860_REG_PREFIX |
| |
| #undef ASM_COMMENT_START |
| #define ASM_COMMENT_START "//" |
| |
| #undef TYPE_OPERAND_FMT |
| #define TYPE_OPERAND_FMT "\"%s\"" |
| |
| #define DBX_REGISTER_NUMBER(REGNO) (REGNO) |
| |
| #undef ASCII_DATA_ASM_OP |
| #define ASCII_DATA_ASM_OP ".byte" |
| |
| /* |
| * the assembler we're using doesn't grok .ident... |
| */ |
| #undef ASM_OUTPUT_IDENT |
| #define ASM_OUTPUT_IDENT(FILE, NAME) \ |
| fprintf (FILE, "//\t.ident \"%s\"\n", NAME); |
| |
| /* |
| * the assembler doesn't grok .double INF and the like |
| * but does understand .long with hex numbers, so special |
| * case the "symbolic" IEEE numbers. |
| */ |
| #undef ASM_OUTPUT_DOUBLE |
| #define ASM_OUTPUT_DOUBLE(FILE,VALUE) \ |
| { \ |
| if (REAL_VALUE_ISINF (VALUE) \ |
| || REAL_VALUE_ISNAN (VALUE) \ |
| || REAL_VALUE_MINUS_ZERO (VALUE)) \ |
| { \ |
| long t[2]; \ |
| REAL_VALUE_TO_TARGET_DOUBLE ((VALUE), t); \ |
| fprintf (FILE, "\t.long 0x%lx\n\t.long 0x%lx\n", t[0], t[1]); \ |
| } \ |
| else \ |
| fprintf (FILE, "\t.double %.20e\n", VALUE); \ |
| } |
| |
| #undef ASM_OUTPUT_FLOAT |
| #define ASM_OUTPUT_FLOAT(FILE,VALUE) \ |
| { \ |
| if (REAL_VALUE_ISINF (VALUE) \ |
| || REAL_VALUE_ISNAN (VALUE) \ |
| || REAL_VALUE_MINUS_ZERO (VALUE)) \ |
| { \ |
| long t; \ |
| REAL_VALUE_TO_TARGET_SINGLE ((VALUE), t); \ |
| fprintf (FILE, "\t.long 0x%lx\n", t); \ |
| } \ |
| else \ |
| fprintf (FILE, "\t.float %.12e\n", VALUE); \ |
| } |
| |
| #undef ASM_OUTPUT_ASCII |
| #define ASM_OUTPUT_ASCII(FILE, STR, LENGTH) \ |
| do \ |
| { \ |
| register unsigned char *str = (unsigned char *) (STR); \ |
| register unsigned char *limit = str + (LENGTH); \ |
| register unsigned bytes_in_chunk = 0; \ |
| for (; str < limit; str++) \ |
| { \ |
| register unsigned ch = *str; \ |
| if (ch < 32 || ch == '\\' || ch == '"' || ch >= 127) \ |
| { \ |
| if (bytes_in_chunk > 0) \ |
| { \ |
| fprintf ((FILE), "\"\n"); \ |
| bytes_in_chunk = 0; \ |
| } \ |
| fprintf ((FILE), "\t%s\t%d\n", ASM_BYTE_OP, ch); \ |
| } \ |
| else \ |
| { \ |
| if (bytes_in_chunk >= 60) \ |
| { \ |
| fprintf ((FILE), "\"\n"); \ |
| bytes_in_chunk = 0; \ |
| } \ |
| if (bytes_in_chunk == 0) \ |
| fprintf ((FILE), "\t%s\t\"", ASCII_DATA_ASM_OP);\ |
| putc (ch, (FILE)); \ |
| bytes_in_chunk++; \ |
| } \ |
| } \ |
| if (bytes_in_chunk > 0) \ |
| fprintf ((FILE), "\"\n"); \ |
| } \ |
| while (0) |
| |
| |
| /* This says how to output an assembler line |
| to define a local common symbol. */ |
| |
| #undef ASM_OUTPUT_LOCAL |
| #define ASM_OUTPUT_LOCAL(FILE, NAME, SIZE, ROUNDED) \ |
| ( fputs (".lcomm ", (FILE)), \ |
| assemble_name ((FILE), (NAME)), \ |
| fprintf ((FILE), ",%u\n", (ROUNDED))) |
| |
| /* |
| * not defining ASM_STABS_OP yields .stabs in the .s file |
| * when using g++ -- so, I'll define it. |
| */ |
| #define ASM_STABS_OP "//.stabs" |
| |
| /* Define this macro if an argument declared as `char' or `short' in a |
| prototype should actually be passed as an `int'. In addition to |
| avoiding errors in certain cases of mismatch, it also makes for |
| better code on certain machines. */ |
| /*#define PROMOTE_PROTOTYPES*/ |
| |
| /* Define this macro if an instruction to load a value narrower |
| than a word from memory into a register also zero-extends the |
| value to the whole register. */ |
| /*#define BYTE_LOADS_ZERO_EXTEND*/ |
| |
| /* Define this macro as a C expression which is nonzero if |
| accessing less than a word of memory (i.e. a `char' or a |
| `short') is no faster than accessing a word of memory, i.e., if |
| such access require more than one instruction or if there is no |
| difference in cost between byte and (aligned) word loads. |
| |
| On RISC machines, it tends to generate better code to define |
| this as 1, since it avoids making a QI or HI mode register. */ |
| /* |
| #undef SLOW_BYTE_ACCESS |
| #define SLOW_BYTE_ACCESS 1 |
| */ |
| |
| /* Define if shifts truncate the shift count |
| which implies one can omit a sign-extension or zero-extension |
| of a shift count. */ |
| #define SHIFT_COUNT_TRUNCATED 1 |
| |
| |
| #define FASTEST_ALIGNMENT 32 |
| |
| /* Make strings word-aligned so strcpy from constants will be faster. */ |
| #define CONSTANT_ALIGNMENT(EXP, ALIGN) \ |
| (TREE_CODE (EXP) == STRING_CST \ |
| && (ALIGN) < FASTEST_ALIGNMENT ? FASTEST_ALIGNMENT : (ALIGN)) |
| |
| /* Make arrays of chars word-aligned for the same reasons. */ |
| #define DATA_ALIGNMENT(TYPE, ALIGN) \ |
| (TREE_CODE (TYPE) == ARRAY_TYPE \ |
| && TYPE_MODE (TREE_TYPE (TYPE)) == QImode \ |
| && (ALIGN) < FASTEST_ALIGNMENT ? FASTEST_ALIGNMENT : (ALIGN)) |
| |
| /* |
| * disable a few things picked up from svr3.h |
| */ |
| #undef INIT_SECTION_ASM_OP |
| #undef FINI_SECTION_ASM_OP |
| #undef CONST_SECTION_ASM_OP |
| #undef CTORS_SECTION_ASM_OP |
| #undef DTORS_SECTION_ASM_OP |
| #undef DO_GLOBAL_CTORS_BODY |
| #undef ASM_OUTPUT_DESTRUCTOR |
| #undef SELECT_SECTION |
| #undef SELECT_RTX_SECTION |
| #undef READONLY_DATA_SECTION |
| |
| #define BSS_SECTION_ASM_OP ".bss" /* XXX */ |
| #undef EXTRA_SECTIONS |
| #undef EXTRA_SECTION_FUNCTIONS |
