git://gcc.gnu.org / gcc.git / blame
| Commit | Line | Data |
|---|---|---|
| 89e6da44 | 1 | /* Configuration file for an m68k OpenBSD target. |
| eb0424da | 2 | Copyright (C) 1999, 2002 Free Software Foundation, Inc. |
| 89e6da44 ME |
3 | |
| 4 | This file is part of GNU CC. | |
| 5 | ||
| 6 | GNU CC is free software; you can redistribute it and/or modify | |
| 7 | it under the terms of the GNU General Public License as published by | |
| 8 | the Free Software Foundation; either version 2, or (at your option) | |
| 9 | any later version. | |
| 10 | ||
| 11 | GNU CC is distributed in the hope that it will be useful, | |
| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 14 | GNU General Public License for more details. | |
| 15 | ||
| 16 | You should have received a copy of the GNU General Public License | |
| 17 | along with GNU CC; see the file COPYING. If not, write to | |
| 18 | the Free Software Foundation, 59 Temple Place - Suite 330, | |
| 19 | Boston, MA 02111-1307, USA. */ | |
| 20 | ||
| 21 | /* m68k is an old configuration that does not yet use the TARGET_CPU_DEFAULT | |
| 22 | framework. */ | |
| 23 | #define TARGET_DEFAULT (MASK_BITFIELD | MASK_68881 | MASK_68020) | |
| 24 | ||
| 25 | #include <m68k/m68k.h> | |
| 26 | ||
| 27 | /* Get generic OpenBSD definitions. */ | |
| 28 | #define OBSD_OLD_GAS | |
| 29 | #include <openbsd.h> | |
| 30 | ||
| 31 | /* Define __HAVE_68881__ in preprocessor, unless -msoft-float is specified. | |
| 32 | This will control the use of inline 68881 insns in certain macros. */ | |
| 33 | #undef CPP_SPEC | |
| 34 | #define CPP_SPEC "%{!msoft-float:-D__HAVE_68881__ -D__HAVE_FPU__} %{posix:-D_POSIX_SOURCE} %{pthread:-D_POSIX_THREADS}" | |
| 35 | ||
| f8bc3f3a | 36 | /* Run-time target specifications. */ |
| 2b57e919 | 37 | #define CPP_PREDEFINES "-D__unix__ -D__m68k__ -D__mc68000__ -D__mc68020__ -D__OpenBSD__ -Asystem=unix -Asystem=OpenBSD -Acpu=m68k -Amachine=m68k" |
| 89e6da44 | 38 | |
| f8bc3f3a JL |
39 | /* m68k as needs to know about the processor subtype. */ |
| 40 | #undef ASM_SPEC | |
| 89e6da44 | 41 | #define ASM_SPEC "%| %{m68030} %{m68040} %{m68060} %{fpic:-k} %{fPIC:-k -K}" |
| 89e6da44 ME |
42 | |
| 43 | /* Layout of source language data types. */ | |
| 44 | ||
| 45 | /* This must agree with <machine/ansi.h> */ | |
| 46 | #undef SIZE_TYPE | |
| 47 | #define SIZE_TYPE "unsigned int" | |
| 48 | ||
| 49 | #undef PTRDIFF_TYPE | |
| 50 | #define PTRDIFF_TYPE "int" | |
| 51 | ||
| 52 | #undef WCHAR_TYPE | |
| 53 | #define WCHAR_TYPE "int" | |
| 54 | ||
| 55 | #undef WCHAR_TYPE_SIZE | |
| 56 | #define WCHAR_TYPE_SIZE 32 | |
| 57 | ||
| 58 | /* Storage layout. */ | |
| 59 | ||
| 60 | /* Every structure or union's size must be a multiple of 2 bytes. */ | |
| 61 | #define STRUCTURE_SIZE_BOUNDARY 16 | |
| 62 | ||
| 63 | /* Specific options for DBX Output. */ | |
| 64 | ||
| 65 | /* This is BSD, so it wants DBX format. */ | |
| 23532de9 | 66 | #define DBX_DEBUGGING_INFO 1 |
| 89e6da44 ME |
67 | |
| 68 | /* Do not break .stabs pseudos into continuations. */ | |
| 69 | #define DBX_CONTIN_LENGTH 0 | |
| 70 | ||
| 71 | /* This is the char to use for continuation (in case we need to turn | |
| 72 | continuation back on). */ | |
| 73 | #define DBX_CONTIN_CHAR '?' | |
| 74 | ||
| 75 | /* Stack & calling: aggregate returns. */ | |
| 76 | ||
| 77 | /* Don't default to pcc-struct-return, because gcc is the only compiler, and | |
| 78 | we want to retain compatibility with older gcc versions. */ | |
| 79 | #define DEFAULT_PCC_STRUCT_RETURN 0 | |
| 80 | ||
| 81 | /* Assembler format: exception region output. */ | |
| 82 | ||
| 83 | /* All configurations that don't use elf must be explicit about not using | |
| 84 | dwarf unwind information. egcs doesn't try too hard to check internal | |
| 85 | configuration files... */ | |
| 86 | #define DWARF2_UNWIND_INFO 0 | |
| 87 | ||
| 88 | ||
| eb0424da | 89 | /* TODO: TARGET_ASM_OUTPUT_MI_THUNK is busted. I need to figure out |
| 89e6da44 ME |
90 | what bra func@PLTPC means under linux, and find the corresponding |
| 91 | construction for our gas/pic setup. */ | |
| 92 | #if 0 | |
| 93 | /* Taken from linux.h. Processor dependent optimized code to handle C++ | |
| 94 | multiple inheritance vtable lookup. */ | |
| 95 | ||
| 96 | /* Output code to add DELTA to the first argument, and then jump to FUNCTION. | |
| 97 | Used for C++ multiple inheritance. */ | |
| eb0424da | 98 | #define TARGET_ASM_OUTPUT_MI_THUNK(FILE, THUNK_FNDECL, DELTA, FUNCTION) \ |
| 89e6da44 ME |
99 | do { \ |
| 100 | if (DELTA > 0 && DELTA <= 8) \ | |
| 101 | asm_fprintf (FILE, "\taddq.l %I%d,4(%Rsp)\n", DELTA); \ | |
| 102 | else if (DELTA < 0 && DELTA >= -8) \ | |
| 103 | asm_fprintf (FILE, "\tsubq.l %I%d,4(%Rsp)\n", -DELTA); \ | |
| 104 | else \ | |
| 105 | asm_fprintf (FILE, "\tadd.l %I%d,4(%Rsp)\n", DELTA); \ | |
| 106 | \ | |
| 107 | if (flag_pic) \ | |
| 108 | { \ | |
| 109 | fprintf (FILE, "\tbra.l "); \ | |
| 110 | assemble_name (FILE, XSTR (XEXP (DECL_RTL (FUNCTION), 0), 0)); \ | |
| 111 | fprintf (FILE, "@PLTPC\n"); \ | |
| 112 | } \ | |
| 113 | else \ | |
| 114 | { \ | |
| 115 | fprintf (FILE, "\tjmp "); \ | |
| 116 | assemble_name (FILE, XSTR (XEXP (DECL_RTL (FUNCTION), 0), 0)); \ | |
| 117 | fprintf (FILE, "\n"); \ | |
| 118 | } \ | |
| 119 | } while (0) | |
| 120 | #endif | |
| 121 |