home *** CD-ROM | disk | FTP | other *** search
- /* Definitions of target machine for GNU compiler. Sun 68000/68020 version.
- Copyright (C) 1987, 1988, 1993 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, 675 Mass Ave, Cambridge, MA 02139, 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 7
- #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 & 02
-
- /* -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}"
-
- /* 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 & 0100
- /* -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 & 2
- /* -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 & 0100
- /* -mfpa is the default */
- #define LIB_SPEC "%{g:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p} \
- %{a:/usr/lib/bb_link.o} %{g:-lg} \
- %{msoft-float:-L/usr/lib/fsoft}%{m68881:-L/usr/lib/f68881}\
- %{!msoft_float:%{!m68881:-L/usr/lib/ffpa}}"
- #else
- #if TARGET_DEFAULT & 2
- /* -m68881 is the default */
- #define LIB_SPEC "%{g:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p} \
- %{a:/usr/lib/bb_link.o} %{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} \
- %{a:/usr/lib/bb_link.o} %{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)
-
- #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); \
- }
-