diff options
Diffstat (limited to 'gcc/config/m68k/apollo68.h')
| -rwxr-xr-x | gcc/config/m68k/apollo68.h | 208 |
1 files changed, 208 insertions, 0 deletions
diff --git a/gcc/config/m68k/apollo68.h b/gcc/config/m68k/apollo68.h new file mode 100755 index 0000000..8eed141 --- /dev/null +++ b/gcc/config/m68k/apollo68.h @@ -0,0 +1,208 @@ +/* Definitions of target machine for GNU compiler. Apollo 680X0 version. + Copyright (C) 1989, 1992, 1996, 1997 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. */ + +#include "m68k/m68k.h" + +/* This symbol may be tested in other files for special Apollo handling */ + +#define TM_APOLLO + +/* See m68k.h. 7 means 68020 with 68881. */ + +#ifndef TARGET_DEFAULT +#define TARGET_DEFAULT (MASK_BITFIELD|MASK_68881|MASK_68020) +#endif + +/* Target switches for the Apollo is the same as in m68k.h, except + there is no Sun FPA. */ + +#undef TARGET_SWITCHES +#define TARGET_SWITCHES \ + { { "68020", 5}, \ + { "c68020", 5}, \ + { "68881", 2}, \ + { "bitfield", 4}, \ + { "68000", -5}, \ + { "c68000", -5}, \ + { "soft-float", -0102}, \ + { "nobitfield", -4}, \ + { "rtd", 8}, \ + { "nortd", -8}, \ + { "short", 040}, \ + { "noshort", -040}, \ + { "", TARGET_DEFAULT}} + +/* Define __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__ }}\ +%{!ansi:%{m68000:-Dmc68010 }%{mc68000:-Dmc68010 }%{!mc68000:%{!m68000:-Dmc68020 }}\ +%{!ansi:-D_APOLLO_SOURCE}}" + +#else + +/* -msoft-float is the default */ +#define CPP_SPEC \ +"%{m68881:-D__HAVE_68881__ }%{mfpa:-D__HAVE_FPA__ }\ +%{!ansi:%{m68000:-Dmc68010 }%{mc68000:-Dmc68010 }%{!mc68000:%{!m68000:-Dmc68020 }}\ +%{!ansi:-D_APOLLO_SOURCE}}" + +#endif + +/* Names to predefine in the preprocessor for this target machine. */ +/* These are the ones defined by Apollo, plus mc68000 for uniformity with + GCC on other 68000 systems. */ + +#define CPP_PREDEFINES "-Dapollo -Daegis -Dunix -Asystem(unix) -Acpu(m68k) -Amachine(m68k)" + +/* cpp has to support a #sccs directive for the /usr/include files */ + +#define SCCS_DIRECTIVE + +/* Allow #ident but output nothing for it. */ + +#define IDENT_DIRECTIVE +#define ASM_OUTPUT_IDENT(FILE, NAME) + +/* -m68000 requires special flags to the assembler. */ + +#define ASM_SPEC \ + "%{m68000:-mc68010}%{mc68000:-mc68010}%{!mc68000:%{!m68000:-mc68020}}" + +/* STARTFILE_SPEC + Note that includes knowledge of the default specs for gcc, ie. no + args translates to the same effect as -m68881 */ + +#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}}" +#else +/* -msoft-float is the default */ +#define STARTFILE_SPEC \ + "%{pg:gcrt0.o%s}%{!pg:%{p:mcrt0.o%s}%{!p:crt0.o%s}}" +#endif + +/* Specify library to handle `-a' basic block profiling. */ + +#define LIB_SPEC "%{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p} \ +%{a:/usr/lib/bb_link.o} " + +/* Debugging is not supported yet */ + +#undef DBX_DEBUGGING_INFO +#undef SDB_DEBUGGING_INFO + +/* We have atexit(2). So C++ can use it for global destructors. */ + +#if 0 /* troy@cbme.unsw.edu.au says people are still using sr10.2 + and it does not support atexit. */ +#define HAVE_ATEXIT +#endif + +/* Every structure or union's size must be a multiple of 2 bytes. */ + +#define STRUCTURE_SIZE_BOUNDARY 16 + +/* Boundary (in *bits*) on which stack pointer should be aligned. */ +#undef STACK_BOUNDARY +#define STACK_BOUNDARY 32 + +/* Functions which return large structures get the address + to place the wanted value from a hidden parameter. */ + +#undef PCC_STATIC_STRUCT_RETURN +#undef STRUCT_VALUE_REGNUM +#define STRUCT_VALUE 0 +#define STRUCT_VALUE_INCOMING 0 + +/* Specify how to pad function arguments. + Arguments are not padded at all; the stack is kept aligned on long + boundaries. */ + +#define FUNCTION_ARG_PADDING(mode, size) none + +/* The definition of this macro imposes a limit on the size of + an aggregate object which can be treated as if it were a scalar + object. */ + +#define MAX_FIXED_MODE_SIZE BITS_PER_WORD + +/* The definition of this macro implies that there are cases where + a scalar value cannot be returned in registers. + For Apollo, anything larger than one integer register is returned + using the structure-value mechanism, i.e. objects of DFmode are + returned that way. */ + +#define RETURN_IN_MEMORY(type) \ + (TYPE_MODE (type) == BLKmode \ + || GET_MODE_SIZE (TYPE_MODE (type)) > UNITS_PER_WORD) + +/* In order to link with Apollo libraries, we can't prefix external + symbols with an underscore. */ + +#undef USER_LABEL_PREFIX + +/* Use a prefix for local labels, just to be on the save side. */ + +#undef LOCAL_LABEL_PREFIX +#define LOCAL_LABEL_PREFIX "." + +/* Use a register prefix to avoid clashes with external symbols (classic + example: `extern char PC;' in termcap). */ + +#undef REGISTER_PREFIX +#define REGISTER_PREFIX "%" + +/* config/m68k.md has an explicit reference to the program counter, + prefix this by the register prefix. */ + +#define ASM_RETURN_CASE_JUMP \ + do { \ + if (TARGET_5200) \ + return "ext%.l %0\n\tjmp %%pc@(2,%0:l)"; \ + else \ + return "jmp %%pc@(2,%0:w)" \ + } while (0) + +/* Here are the new register names. */ + +#undef REGISTER_NAMES +#ifndef SUPPORT_SUN_FPA +#define REGISTER_NAMES \ +{"%d0", "%d1", "%d2", "%d3", "%d4", "%d5", "%d6", "%d7", \ + "%a0", "%a1", "%a2", "%a3", "%a4", "%a5", "%a6", "%sp", \ + "%fp0", "%fp1", "%fp2", "%fp3", "%fp4", "%fp5", "%fp6", "%fp7" } +#else /* SUPPORTED_SUN_FPA */ +#define REGISTER_NAMES \ +{"%d0", "%d1", "%d2", "%d3", "%d4", "%d5", "%d6", "%d7", \ + "%a0", "%a1", "%a2", "%a3", "%a4", "%a5", "%a6", "%sp", \ + "%fp0", "%fp1", "%fp2", "%fp3", "%fp4", "%fp5", "%fp6", "%fp7", \ + "%fpa0", "%fpa1", "%fpa2", "%fpa3", "%fpa4", "%fpa5", "%fpa6", "%fpa7", \ + "%fpa8", "%fpa9", "%fpa10", "%fpa11", "%fpa12", "%fpa13", "%fpa14", "%fpa15", \ + "%fpa16", "%fpa17", "%fpa18", "%fpa19", "%fpa20", "%fpa21", "%fpa22", "%fpa23", \ + "%fpa24", "%fpa25", "%fpa26", "%fpa27", "%fpa28", "%fpa29", "%fpa30", "%fpa31" } +#endif /* defined SUPPORT_SUN_FPA */ |