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1.1 ! root 1: /* Definitions for Intel 386 running system V. ! 2: Copyright (C) 1988 Free Software Foundation, Inc. ! 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 1, 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, 675 Mass Ave, Cambridge, MA 02139, USA. */ ! 19: ! 20: ! 21: #include "tm-i386.h" ! 22: ! 23: /* Use the ATT assembler syntax. */ ! 24: ! 25: #include "tm-att386.h" ! 26: ! 27: /* By default, target has a 80387. */ ! 28: ! 29: #define TARGET_DEFAULT 1 ! 30: ! 31: /* Use crt1.o as a startup file and crtn.o as a closing file. */ ! 32: ! 33: #define STARTFILE_SPEC \ ! 34: "%{pg:gcrt1.o%s}%{!pg:%{p:mcrt1.o%s}%{!p:crt1.o%s}}" ! 35: ! 36: #define LIB_SPEC "%{p:-L/usr/lib/libp}%{pg:-L/usr/lib/libp} -lc crtn.o%s" ! 37: ! 38: /* Specify predefined symbols in preprocessor. */ ! 39: ! 40: #define CPP_PREDEFINES "-Dunix -Di386" ! 41: ! 42: /* Allow #sccs in preprocessor. */ ! 43: ! 44: #define SCCS_DIRECTIVE ! 45: ! 46: /* Output #ident as a .ident. */ ! 47: ! 48: #define ASM_OUTPUT_IDENT(FILE, NAME) fprintf (FILE, "\t.ident \"%s\"\n", NAME); ! 49: ! 50: /* We want to output SDB debugging information. */ ! 51: ! 52: #define SDB_DEBUGGING_INFO ! 53: ! 54: /* We don't want to output DBX debugging information. */ ! 55: ! 56: #undef DBX_DEBUGGING_INFO ! 57: ! 58: /* Implicit library calls should use memcpy, not bcopy, etc. */ ! 59: ! 60: #define TARGET_MEM_FUNCTIONS ! 61: ! 62: /* Writing `int' for a bitfield forces int alignment for the structure. */ ! 63: ! 64: #define PCC_BITFIELD_TYPE_MATTERS ! 65: ! 66: /* Don't write a `.optim' pseudo; this assembler doesn't handle them. */ ! 67: ! 68: #undef ASM_FILE_START_1 ! 69: #define ASM_FILE_START_1(FILE) ! 70: ! 71: /* Machines that use the AT&T assembler syntax ! 72: also return floating point values in an FP register. */ ! 73: /* Define how to find the value returned by a function. ! 74: VALTYPE is the data type of the value (as a tree). ! 75: If the precise function being called is known, FUNC is its FUNCTION_DECL; ! 76: otherwise, FUNC is 0. */ ! 77: ! 78: #define VALUE_REGNO(MODE) \ ! 79: (((MODE)==SFmode || (MODE)==DFmode) ? FIRST_FLOAT_REG : 0) ! 80: ! 81: /* 1 if N is a possible register number for a function value. */ ! 82: ! 83: #define FUNCTION_VALUE_REGNO_P(N) ((N) == 0 || (N)== FIRST_FLOAT_REG)
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