| /* Definitions of target machine for GNU compiler. Sun 68000/68020 version. |
| Copyright (C) 1987, 1988, 1993, 1995, 1996, 1998, 1999 |
| 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", (int) 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 |
