1 /* Definitions of target machine for GCC, for SPARC64, ELF. 2 Copyright (C) 1994, 1995, 1996, 1997, 1998, 2000 3 Free Software Foundation, Inc. 4 Contributed by Doug Evans, dje@cygnus.com. 5 6 This file is part of GCC. 7 8 GCC is free software; you can redistribute it and/or modify 9 it under the terms of the GNU General Public License as published by 10 the Free Software Foundation; either version 2, or (at your option) 11 any later version. 12 13 GCC is distributed in the hope that it will be useful, 14 but WITHOUT ANY WARRANTY; without even the implied warranty of 15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 GNU General Public License for more details. 17 18 You should have received a copy of the GNU General Public License 19 along with GCC; see the file COPYING. If not, write to 20 the Free Software Foundation, 59 Temple Place - Suite 330, 21 Boston, MA 02111-1307, USA. */ 22 23 /* ??? We're taking the scheme of including another file and then overriding 24 the values we don't like a bit too far here. The alternative is to more or 25 less duplicate all of svr4.h, sparc/sysv4.h, and sparc/sol2.h here 26 (suitably cleaned up). */ 27 28 #undef TARGET_VERSION 29 #define TARGET_VERSION fprintf (stderr, " (sparc64-elf)") 30 31 /* A 64 bit v9 compiler in a Medium/Anywhere code model environment. */ 32 33 #undef TARGET_DEFAULT 34 #define TARGET_DEFAULT \ 35 (MASK_V9 + MASK_PTR64 + MASK_64BIT + MASK_HARD_QUAD \ 36 + MASK_APP_REGS + MASK_FPU + MASK_STACK_BIAS + MASK_LONG_DOUBLE_128) 37 38 #undef SPARC_DEFAULT_CMODEL 39 #define SPARC_DEFAULT_CMODEL CM_EMBMEDANY 40 41 /* Target OS builtins for config/sol.h. */ 42 #undef TARGET_SUB_OS_CPP_BUILTINS 43 #define TARGET_SUB_OS_CPP_BUILTINS() \ 44 do \ 45 { \ 46 builtin_define_std ("sparc"); \ 47 } \ 48 while (0) 49 50 /* __svr4__ is used by the C library (FIXME) */ 51 #undef CPP_SUBTARGET_SPEC 52 #define CPP_SUBTARGET_SPEC "-D__svr4__" 53 54 #undef MD_EXEC_PREFIX 55 #undef MD_STARTFILE_PREFIX 56 57 #undef ASM_SPEC 58 #define ASM_SPEC "\ 59 %{v:-V} -s %{fpic|fPIC|fpie|fPIE:-K PIC} \ 60 %{mlittle-endian:-EL} \ 61 %(asm_cpu) %(asm_arch) \ 62 " 63 64 /* This is taken from sol2.h. */ 65 #undef LINK_SPEC 66 #define LINK_SPEC "\ 67 %{v:-V} \ 68 %{mlittle-endian:-EL} \ 69 " 70 71 /* We need something a little simpler for the embedded environment. 72 Profiling doesn't really work yet so we just copy the default. */ 73 #undef STARTFILE_SPEC 74 #define STARTFILE_SPEC "\ 75 %{!shared:%{pg:gcrt0.o%s}%{!pg:%{p:mcrt0.o%s}%{!p:crt0.o%s}}} \ 76 crtbegin.o%s \ 77 " 78 79 #undef ENDFILE_SPEC 80 #define ENDFILE_SPEC \ 81 "%{ffast-math|funsafe-math-optimizations:crtfastmath.o%s} \ 82 crtend.o%s" 83 84 /* Use the default (for now). */ 85 #undef LIB_SPEC 86 87 /* V9 chips can handle either endianness. */ 88 #undef SUBTARGET_SWITCHES 89 #define SUBTARGET_SWITCHES \ 90 {"big-endian", -MASK_LITTLE_ENDIAN, N_("Generate code for big endian") }, \ 91 {"little-endian", MASK_LITTLE_ENDIAN, N_("Generate code for little endian") }, 92 93 #undef BYTES_BIG_ENDIAN 94 #define BYTES_BIG_ENDIAN (! TARGET_LITTLE_ENDIAN) 95 96 #undef WORDS_BIG_ENDIAN 97 #define WORDS_BIG_ENDIAN (! TARGET_LITTLE_ENDIAN) 98 99 /* ??? This should be 32 bits for v9 but what can we do? */ 100 #undef WCHAR_TYPE 101 #define WCHAR_TYPE "short unsigned int" 102 103 #undef WCHAR_TYPE_SIZE 104 #define WCHAR_TYPE_SIZE 16 105 106 #undef LONG_DOUBLE_TYPE_SIZE 107 #define LONG_DOUBLE_TYPE_SIZE 128 108 109 /* The medium/anywhere code model practically requires us to put jump tables 110 in the text section as gcc is unable to distinguish LABEL_REF's of jump 111 tables from other label refs (when we need to). */ 112 /* But we now defer the tables to the end of the function, so we make 113 this 0 to not confuse the branch shortening code. */ 114 #undef JUMP_TABLES_IN_TEXT_SECTION 115 #define JUMP_TABLES_IN_TEXT_SECTION 0 116 117 /* System V Release 4 uses DWARF debugging info. 118 GDB doesn't support 64 bit stabs yet and the desired debug format is DWARF 119 anyway so it is the default. */ 120 121 #define DBX_DEBUGGING_INFO 1 122 123 #undef PREFERRED_DEBUGGING_TYPE 124 #define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG 125