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Diffstat (limited to 'gcc/config/m68k/sun3.h')
| -rwxr-xr-x | gcc/config/m68k/sun3.h | 301 |
1 files changed, 301 insertions, 0 deletions
diff --git a/gcc/config/m68k/sun3.h b/gcc/config/m68k/sun3.h new file mode 100755 index 0000000..13e927e --- /dev/null +++ b/gcc/config/m68k/sun3.h @@ -0,0 +1,301 @@ +/* Definitions of target machine for GNU compiler. Sun 68000/68020 version. + Copyright (C) 1987, 1988, 1993, 1995, 1996 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. */ + +/* This comment is here to see if it will keep Sun's cpp from dying. */ + +/* If you do not need to generate floating point code for the optional + Sun FPA board, you can safely comment out the SUPPORT_SUN_FPA define + to gain a little speed and code size. */ + +#define SUPPORT_SUN_FPA + +#include "m68k/m68k.h" + +/* See m68k.h. 7 means 68020 with 68881. */ + +#ifndef TARGET_DEFAULT +#define TARGET_DEFAULT (MASK_BITFIELD|MASK_68881|MASK_68020) +#endif + +/* Define __HAVE_FPA__ or __HAVE_68881__ in preprocessor, + according to the -m flags. + This will control the use of inline 68881 insns in certain macros. + Also inform the program which CPU this is for. */ + +#if TARGET_DEFAULT & MASK_68881 + +/* -m68881 is the default */ +#define CPP_SPEC \ +"%{!msoft-float:%{mfpa:-D__HAVE_FPA__ }%{!mfpa:-D__HAVE_68881__ }}\ +%{m68000:-D__mc68010__}%{mc68000:-D__mc68010__}%{!mc68000:%{!m68000:-D__mc68020__}} \ +%{!ansi:%{m68000:-Dmc68010}%{mc68000:-Dmc68010}%{!mc68000:%{!m68000:-Dmc68020}}}" + +#else + +/* -msoft-float is the default */ +#define CPP_SPEC \ +"%{m68881:-D__HAVE_68881__ }%{mfpa:-D__HAVE_FPA__ }\ +%{m68000:-D__mc68010__}%{mc68000:-D__mc68010__}%{!mc68000:%{!m68000:-D__mc68020__}} \ +%{!ansi:%{m68000:-Dmc68010}%{mc68000:-Dmc68010}%{!mc68000:%{!m68000:-Dmc68020}}}" + +#endif + +/* Prevent error on `-sun3' and `-target sun3' options. */ + +#define CC1_SPEC "%{sun3:} %{target:}" + +#define PTRDIFF_TYPE "int" + +/* We must override m68k.h. */ +#undef WCHAR_TYPE +#undef WCHAR_TYPE_SIZE +#define WCHAR_TYPE "short unsigned int" +#define WCHAR_TYPE_SIZE 16 + +/* These compiler options take an argument. We ignore -target for now. */ + +#define WORD_SWITCH_TAKES_ARG(STR) \ + (DEFAULT_WORD_SWITCH_TAKES_ARG (STR) \ + || !strcmp (STR, "target") || !strcmp (STR, "assert")) + +/* -m68000 requires special flags to the assembler. */ + +#define ASM_SPEC \ + "%{m68000:-mc68010}%{mc68000:-mc68010}%{!mc68000:%{!m68000:-mc68020}} \ + %{fpic:-k} %{fPIC:-k} %{R} %{j} %{J} %{h} %{d2} %{keep-local-as-symbols:-L}" + +/* Names to predefine in the preprocessor for this target machine. */ +/* For a while, -D_CROSS_TARGET_ARCH=SUN3 was included here, + but it doesn't work, partly because SUN3 etc. aren't defined + (and shouldn't be). It seems that on a native compiler _CROSS_TARGET_ARCH + should not be defined. For cross compilers, let's do things as we + normally do in GCC. -- rms. */ + +#define CPP_PREDEFINES "-Dmc68000 -Dsun -Dunix -Asystem(unix) -Asystem(bsd) -Acpu(m68k) -Amachine(m68k)" + +/* STARTFILE_SPEC to include sun floating point initialization + This is necessary (tr: Sun does it) for both the m68881 and the fpa + routines. + Note that includes knowledge of the default specs for gcc, ie. no + args translates to the same effect as -m68881 + I'm not sure what would happen below if people gave contradictory + arguments (eg. -msoft-float -mfpa) */ + +#if TARGET_DEFAULT & MASK_FPA +/* -mfpa is the default */ +#define STARTFILE_SPEC \ + "%{pg:gcrt0.o%s}%{!pg:%{p:mcrt0.o%s}%{!p:crt0.o%s}} \ + %{m68881:Mcrt1.o%s} \ + %{msoft-float:Fcrt1.o%s} \ + %{!m68881:%{!msoft-float:Wcrt1.o%s}}" +#else +#if TARGET_DEFAULT & MASK_68881 +/* -m68881 is the default */ +#define STARTFILE_SPEC \ + "%{pg:gcrt0.o%s}%{!pg:%{p:mcrt0.o%s}%{!p:crt0.o%s}} \ + %{mfpa:Wcrt1.o%s} \ + %{msoft-float:Fcrt1.o%s} \ + %{!mfpa:%{!msoft-float:Mcrt1.o%s}}" +#else +/* -msoft-float is the default */ +#define STARTFILE_SPEC \ + "%{pg:gcrt0.o%s}%{!pg:%{p:mcrt0.o%s}%{!p:crt0.o%s}} \ + %{m68881:Mcrt1.o%s} \ + %{mfpa:Wcrt1.o%s} \ + %{!m68881:%{!mfpa:Fcrt1.o%s}}" +#endif +#endif + +/* Specify library to handle `-a' basic block profiling. + Control choice of libm.a (if user says -lm) + based on fp arith default and options. */ + +#if TARGET_DEFAULT & MASK_FPA +/* -mfpa is the default */ +#define LIB_SPEC "%{g:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p} \ +%{g:-lg} \ +%{msoft-float:-L/usr/lib/fsoft}%{m68881:-L/usr/lib/f68881}\ +%{!msoft_float:%{!m68881:-L/usr/lib/ffpa}}" +#else +#if TARGET_DEFAULT & MASK_68881 +/* -m68881 is the default */ +#define LIB_SPEC "%{g:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p} \ +%{g:-lg} \ +%{msoft-float:-L/usr/lib/fsoft}%{!msoft-float:%{!mfpa:-L/usr/lib/f68881}}\ +%{mfpa:-L/usr/lib/ffpa}" +#else +/* -msoft-float is the default */ +#define LIB_SPEC "%{g:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p} \ +%{g:-lg} \ +%{!m68881:%{!mfpa:-L/usr/lib/fsoft}}%{m68881:-L/usr/lib/f68881}\ +%{mfpa:-L/usr/lib/ffpa}" +#endif +#endif + +/* Provide required defaults for linker -e and -d switches. */ + +#define LINK_SPEC \ + "%{!nostdlib:%{!r*:%{!e*:-e start}}} -dc -dp %{static:-Bstatic} %{assert*}" + +/* Every structure or union's size must be a multiple of 2 bytes. */ + +#define STRUCTURE_SIZE_BOUNDARY 16 + +/* This is BSD, so it wants DBX format. */ + +#define DBX_DEBUGGING_INFO + +/* Allow folding division by zero. */ +#define REAL_INFINITY + +/* Generate calls to memcpy, memcmp and memset. */ +#define TARGET_MEM_FUNCTIONS + +/* This is not a good idea. It prevents interoperation between + files compiled with -m68881 and those compiled with -msoft-float. */ +#if 0 +#define FUNCTION_VALUEX(MODE) \ + gen_rtx (REG, (MODE), \ + ((TARGET_68881 \ + && ((MODE) == SFmode || (MODE) == DFmode || (MODE) == XFmode)) \ + ? 16 : 0)) + +#undef FUNCTION_VALUE +#define FUNCTION_VALUE(VALTYPE,FUNC) FUNCTION_VALUEX (TYPE_MODE (VALTYPE)) +#endif /* 0 */ + +/* This is how to output an assembler line defining a `double' constant. */ + +#undef ASM_OUTPUT_DOUBLE +#define ASM_OUTPUT_DOUBLE(FILE,VALUE) \ + { \ + if (REAL_VALUE_ISINF (VALUE)) \ + { \ + if (REAL_VALUE_NEGATIVE (VALUE)) \ + fprintf (FILE, "\t.double 0r-99e999\n"); \ + else \ + fprintf (FILE, "\t.double 0r99e999\n"); \ + } \ + else if (REAL_VALUE_ISNAN (VALUE)) \ + { long l[2]; \ + REAL_VALUE_TO_TARGET_DOUBLE ((VALUE), l); \ + fprintf (FILE, "\t.long 0x%lx\n\t.long 0x%lx\n", l[0], l[1]); \ + } \ + else \ + { char dstr[30]; \ + REAL_VALUE_TO_DECIMAL ((VALUE), "%.17g", dstr); \ + fprintf (FILE, "\t.double 0r%s\n", dstr); \ + } \ + } + +/* This is how to output an assembler line defining a `float' constant. */ + +#undef ASM_OUTPUT_FLOAT +#define ASM_OUTPUT_FLOAT(FILE,VALUE) \ + { \ + if (REAL_VALUE_ISINF (VALUE)) \ + { \ + if (REAL_VALUE_NEGATIVE (VALUE)) \ + fprintf (FILE, "\t.single 0r-99e999\n"); \ + else \ + fprintf (FILE, "\t.single 0r99e999\n"); \ + } \ + else if (REAL_VALUE_ISNAN (VALUE)) \ + { long l; \ + REAL_VALUE_TO_TARGET_SINGLE ((VALUE), l); \ + fprintf (FILE, "\t.long 0x%lx\n", l); \ + } \ + else \ + { char dstr[30]; \ + REAL_VALUE_TO_DECIMAL ((VALUE), "%.9g", dstr); \ + fprintf (FILE, "\t.single 0r%s\n", dstr); \ + } \ + } + +/* This is how to output an assembler lines defining floating operands. + There's no way to output a NaN's fraction, so we lose it. */ + +#undef ASM_OUTPUT_FLOAT_OPERAND +#define ASM_OUTPUT_FLOAT_OPERAND(CODE,FILE,VALUE) \ + do { \ + if (CODE != 'f') \ + { \ + long l; \ + REAL_VALUE_TO_TARGET_SINGLE (VALUE, l); \ + if (sizeof (int) == sizeof (long)) \ + asm_fprintf ((FILE), "%I0x%x", l); \ + else \ + asm_fprintf ((FILE), "%I0x%lx", l); \ + } \ + else if (REAL_VALUE_ISINF (VALUE)) \ + { \ + if (REAL_VALUE_NEGATIVE (VALUE)) \ + asm_fprintf (FILE, "%I0r-99e999"); \ + else \ + asm_fprintf (FILE, "%I0r99e999"); \ + } \ + else if (REAL_VALUE_MINUS_ZERO (VALUE)) \ + { \ + asm_fprintf (FILE, "%I0r-0.0"); \ + } \ + else \ + { char dstr[30]; \ + REAL_VALUE_TO_DECIMAL ((VALUE), "%.9g", dstr); \ + asm_fprintf (FILE, "%I0r%s", dstr); \ + } \ + } while (0) + +#undef ASM_OUTPUT_DOUBLE_OPERAND +#define ASM_OUTPUT_DOUBLE_OPERAND(FILE,VALUE) \ + do { if (REAL_VALUE_ISINF (VALUE)) \ + { \ + if (REAL_VALUE_NEGATIVE (VALUE)) \ + asm_fprintf (FILE, "%I0r-99e999"); \ + else \ + asm_fprintf (FILE, "%I0r99e999"); \ + } \ + else if (REAL_VALUE_MINUS_ZERO (VALUE)) \ + { \ + asm_fprintf (FILE, "%I0r-0.0"); \ + } \ + else \ + { char dstr[30]; \ + REAL_VALUE_TO_DECIMAL ((VALUE), "%.17g", dstr); \ + asm_fprintf (FILE, "%I0r%s", dstr); \ + } \ + } while (0) + +#if 0 +/* This was turned off as it caused linking errors on sunos4.1. + `gcc -a' links in /usr/lib/bb_link.o which does not provide __bb_link + but its own version of __bb_init_func. */ +#undef BLOCK_PROFILER_CODE +#define BLOCK_PROFILER_CODE \ +extern int ___tcov_init; \ + \ +__bb_init_func (blocks) \ + struct bb *blocks; \ +{ \ + if (! ___tcov_init) \ + ___tcov_init_func (); \ + \ + ___bb_link (blocks->filename, blocks->counts, blocks->ncounts); \ +} +#endif |