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1.1 root 1: /* Definitions for Intel 386 running SunOS 4.0.
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 Sun assembler syntax. */
24:
25: #include "tm-sun386.h"
26:
27: /* By default, target has a 80387. */
28:
29: #define TARGET_DEFAULT 1
30:
31: /* Use crt0.o as a startup file. */
32:
33: #define STARTFILE_SPEC \
34: "%{pg:gcrt0.o%s}%{!pg:%{p:mcrt0.o%s}%{!p:crt0.o%s}}"
35:
36: #define LIB_SPEC "%{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}\
37: %{sun386:}"
38: /* That last item is just to prevent a spurious error. */
39:
40: /* Extra switches to give the assembler. */
41:
42: #define ASM_SPEC "-i386"
43:
44: /* Specify predefined symbols in preprocessor. */
45:
46: #define CPP_PREDEFINES "-Dunix -Di386 -Dsun386 -Dsun"
47:
48: /* Allow #sccs in preprocessor. */
49:
50: #define SCCS_DIRECTIVE
51:
52: /* Output #ident as a .ident. */
53:
54: #define ASM_OUTPUT_IDENT(FILE, NAME) fprintf (FILE, "\t.ident \"%s\"\n", NAME);
55:
56: /* We don't want to output SDB debugging information. */
57:
58: #undef SDB_DEBUGGING_INFO
59:
60: /* We want to output DBX debugging information. */
61:
62: #define DBX_DEBUGGING_INFO
63:
64: /* Implicit library calls should use memcpy, not bcopy, etc. */
65:
66: #define TARGET_MEM_FUNCTIONS
67:
68:
69: /* Define how to find the value returned by a function.
70: VALTYPE is the data type of the value (as a tree).
71: If the precise function being called is known, FUNC is its FUNCTION_DECL;
72: otherwise, FUNC is 0. */
73:
74: #define VALUE_REGNO(MODE) \
75: (((MODE)==SFmode || (MODE)==DFmode) ? FIRST_FLOAT_REG : 0)
76:
77: /* 1 if N is a possible register number for a function value. */
78:
79: #define FUNCTION_VALUE_REGNO_P(N) ((N) == 0 || (N)== FIRST_FLOAT_REG)
80:
81: /* This is partly guess. */
82:
83: #undef DBX_REGISTER_NUMBER
84: #define DBX_REGISTER_NUMBER(n) \
85: ((n) == 0 ? 11 : (n) == 1 ? 9 : (n) == 2 ? 10 : (n) == 3 ? 8 \
86: : (n) == 4 ? 5 : (n) == 5 ? 4 : (n) == 6 ? 6 : (n))
87:
88: /* Every debugger symbol must be in the text section.
89: Otherwise the assembler or the linker screws up. */
90:
91: #define DEBUG_SYMS_TEXT
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