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1.1 root 1: /* Definitions of target machine for GNU compiler. Iris version 5. 1.1.1.3 ! root 2: Copyright (C) 1993, 1995 Free Software Foundation, Inc. 1.1 root 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 1.1.1.3 ! root 18: the Free Software Foundation, 59 Temple Place - Suite 330, ! 19: Boston, MA 02111-1307, USA. */ 1.1 root 20: 1.1.1.3 ! root 21: #ifndef TARGET_DEFAULT 1.1 root 22: #define TARGET_DEFAULT MASK_ABICALLS 1.1.1.3 ! root 23: #endif 1.1 root 24: #define ABICALLS_ASM_OP ".option pic2" 25: 26: #include "mips/iris4.h" 27: 1.1.1.2 root 28: /* Irix 5 doesn't use COFF, so disable special COFF handling in collect2.c. */ 29: #undef OBJECT_FORMAT_COFF 30: 31: /* ??? This is correct, but not very useful, because there is no file that 32: uses this macro. */ 33: /* ??? The best way to handle global constructors under ELF is to use .init 34: and .fini sections. Unfortunately, there is apparently no way to get 35: the Irix 5.x (x <= 2) assembler to create these sections. So we instead 36: use collect. The linker can create these sections via -init and -fini 37: options, but using this would require modifying how crtstuff works, and 38: I will leave that for another time (or someone else). */ 39: #define OBJECT_FORMAT_ELF 1.1.1.3 ! root 40: #define HAS_INIT_SECTION ! 41: #define LD_INIT_SWITCH "-init" ! 42: #define LD_FINI_SWITCH "-fini" 1.1.1.2 root 43: 44: /* Specify wchar_t types. */ 1.1 root 45: #undef WCHAR_TYPE 46: #undef WCHAR_TYPE_SIZE 1.1.1.2 root 47: #undef MAX_WCHAR_TYPE_SIZE 1.1 root 48: 49: #define WCHAR_TYPE "long int" 50: #define WCHAR_TYPE_SIZE LONG_TYPE_SIZE 1.1.1.2 root 51: #define MAX_WCHAR_TYPE_SIZE MAX_LONG_TYPE_SIZE 1.1 root 52: 53: /* ??? _MIPS_SIM and _MIPS_SZPTR should eventually depend on options when 54: options for them exist. */ 55: 56: #undef CPP_PREDEFINES 57: #define CPP_PREDEFINES \ 1.1.1.2 root 58: "-Dunix -Dmips -Dsgi -Dhost_mips -DMIPSEB -D_MIPSEB -DSYSTYPE_SVR4 \ 1.1 root 59: -D_SVR4_SOURCE -D_MODERN_C -D__DSO__ \ 60: -D_MIPS_SIM=_MIPS_SIM_ABI32 -D_MIPS_SZPTR=32 \ 61: -Asystem(unix) -Asystem(svr4) -Acpu(mips) -Amachine(sgi)" 62: 63: #undef CPP_SPEC 64: #define CPP_SPEC "\ 65: %{!ansi:-D__EXTENSIONS__ -D_SGI_SOURCE -D_LONGLONG} \ 66: %{.cc: -D_LANGUAGE_C_PLUS_PLUS} \ 67: %{.cxx: -D_LANGUAGE_C_PLUS_PLUS} \ 68: %{.C: -D_LANGUAGE_C_PLUS_PLUS} \ 1.1.1.2 root 69: %{.m: -D_LANGUAGE_OBJECTIVE_C -D_LANGUAGE_C} \ 70: %{.S: -D_LANGUAGE_ASSEMBLY %{!ansi:-DLANGUAGE_ASSEMBLY}} \ 71: %{.s: -D_LANGUAGE_ASSEMBLY %{!ansi:-DLANGUAGE_ASSEMBLY}} \ 72: %{!.S:%{!.s: %{!.cc: %{!.cxx: %{!.C: %{!.m: -D_LANGUAGE_C %{!ansi:-DLANGUAGE_C}}}}}}}\ 1.1 root 73: %{!mfp64: -D_MIPS_FPSET=16}%{mfp64: -D_MIPS_FPSET=32} \ 74: %{mips1: -D_MIPS_ISA=_MIPS_ISA_MIPS1} \ 75: %{mips2: -D_MIPS_ISA=_MIPS_ISA_MIPS2} \ 76: %{mips3: -D_MIPS_ISA=_MIPS_ISA_MIPS3} \ 77: %{!mips1: %{!mips2: %{!mips3: -D_MIPS_ISA=_MIPS_ISA_MIPS1}}} \ 78: %{!mint64: -D_MIPS_SZINT=32}%{mint64: -D_MIPS_SZINT=64} \ 1.1.1.2 root 79: %{!mlong64: -D_MIPS_SZLONG=32}%{mlong64: -D_MIPS_SZLONG=64} \ 80: %{mlong64:-D__SIZE_TYPE__=long\\ unsigned\\ int -D__PTRDIFF_TYPE__=long\\ int} \ 81: %{!mlong64:-D__SIZE_TYPE__=unsigned\\ int -D__PTRDIFF_TYPE__=int} \ 1.1.1.3 ! root 82: %{mips3:-U__mips -D__mips=3 -D__mips64} \ ! 83: %{mgp32:-U__mips64} %{mgp64:-D__mips64} \ ! 84: %{EB:-UMIPSEL -U_MIPSEL -U__MIPSEL -U__MIPSEL__ -D_MIPSEB -D__MIPSEB -D__MIPSEB__ %{!ansi:-DMIPSEB}} \ ! 85: %{EL:-UMIPSEB -U_MIPSEB -U__MIPSEB -U__MIPSEB__ -D_MIPSEL -D__MIPSEL -D__MIPSEL__ %{!ansi:-DMIPSEL}}" 1.1 root 86: 87: #undef LINK_SPEC 88: #define LINK_SPEC "\ 1.1.1.2 root 89: %{G*} %{EB} %{EL} %{mips1} %{mips2} %{mips3} \ 90: %{bestGnum} %{shared} %{non_shared} \ 91: %{call_shared} %{no_archive} %{exact_version} \ 1.1.1.3 ! root 92: %{!shared:%{!non_shared:%{!call_shared: -call_shared -no_unresolved}}} \ 1.1.1.2 root 93: -_SYSTYPE_SVR4" 1.1 root 94: 1.1.1.3 ! root 95: /* We now support shared libraries. */ ! 96: #undef STARTFILE_SPEC ! 97: #define STARTFILE_SPEC \ ! 98: "%{!shared:%{pg:gcrt1.o%s}%{!pg:%{p:mcrt1.o%s libprof1.a%s}%{!p:crt1.o%s}}}" ! 99: 1.1 root 100: #undef LIB_SPEC 1.1.1.3 ! root 101: #define LIB_SPEC "%{!shared:%{p:-lprof1} %{pg:-lprof1} -lc}" ! 102: ! 103: #undef ENDFILE_SPEC ! 104: #define ENDFILE_SPEC "%{!shared:crtn.o%s}" 1.1 root 105: 106: /* We do not want to run mips-tfile! */ 107: #undef ASM_FINAL_SPEC 108: 1.1.1.2 root 109: /* The system header files are C++ aware. */ 110: /* ??? Unfortunately, most but not all of the headers are C++ aware. 1.1.1.3 ! root 111: Specifically, curses.h is not, and as a consequence, defining this ! 112: used to prevent libg++ building. This is no longer the case so ! 113: define it again to prevent other problems, e.g. with getopt in ! 114: unistd.h. We still need some way to fix just those files that need ! 115: fixing. */ ! 116: #define NO_IMPLICIT_EXTERN_C 1 1.1 root 117: 118: /* We don't support debugging info for now. */ 119: #undef DBX_DEBUGGING_INFO 120: #undef SDB_DEBUGGING_INFO 121: #undef MIPS_DEBUGGING_INFO 122: 123: #undef MACHINE_TYPE 1.1.1.3 ! root 124: #define MACHINE_TYPE "SGI running IRIX 5.x" ! 125: #undef NO_DOLLAR_IN_LABEL 1.1 root 126: 1.1.1.2 root 127: /* -G is incompatible with -KPIC which is the default, so only allow objects 128: in the small data section if the user explicitly asks for it. */ 129: #undef MIPS_DEFAULT_GVALUE 130: #define MIPS_DEFAULT_GVALUE 0 131: 132: /* In Irix 5, we must output a `.global name .text' directive for every used 133: but undefined function. If we don't, the linker may perform an optimization 134: (skipping over the insns that set $gp) when it is unsafe. This is used 135: indirectly by ASM_OUTPUT_EXTERNAL. */ 136: #define ASM_OUTPUT_UNDEF_FUNCTION(FILE, NAME) \ 137: do { \ 138: fputs ("\t.globl ", FILE); \ 139: assemble_name (FILE, NAME); \ 140: fputs (" .text\n", FILE); \ 141: } while (0) 142: 143: /* Also do this for libcalls. */ 144: #define ASM_OUTPUT_EXTERNAL_LIBCALL(FILE, FUN) \ 145: mips_output_external_libcall (FILE, XSTR (FUN, 0)) 146: 147: /* This does for functions what ASM_DECLARE_OBJECT_NAME does for variables. 148: This is used indirectly by ASM_OUTPUT_EXTERNAL. */ 149: #define ASM_DECLARE_FUNCTION_SIZE(STREAM, NAME, DECL) \ 150: do { \ 151: tree name_tree = get_identifier (NAME); \ 152: TREE_ASM_WRITTEN (name_tree) = 1; \ 153: } while (0)
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