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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:
1.1.1.2 root 40: /* It is hard to debug with shared libraries,
41: so don't use them if going to debug. */
42:
43: #define LINK_SPEC "%{g:-Bstatic} %{static:-Bstatic} %{Bstatic}"
44:
1.1 root 45: /* Extra switches to give the assembler. */
46:
47: #define ASM_SPEC "-i386"
48:
49: /* Specify predefined symbols in preprocessor. */
50:
51: #define CPP_PREDEFINES "-Dunix -Di386 -Dsun386 -Dsun"
52:
53: /* Allow #sccs in preprocessor. */
54:
55: #define SCCS_DIRECTIVE
56:
57: /* Output #ident as a .ident. */
58:
59: #define ASM_OUTPUT_IDENT(FILE, NAME) fprintf (FILE, "\t.ident \"%s\"\n", NAME);
60:
61: /* We don't want to output SDB debugging information. */
62:
63: #undef SDB_DEBUGGING_INFO
64:
65: /* We want to output DBX debugging information. */
66:
67: #define DBX_DEBUGGING_INFO
68:
69: /* Implicit library calls should use memcpy, not bcopy, etc. */
70:
71: #define TARGET_MEM_FUNCTIONS
72:
1.1.1.3 ! root 73: /* Force structure alignment to the type used for a bitfield. */
! 74:
! 75: #define PCC_BITFIELD_TYPE_MATTERS
1.1 root 76:
77: /* Define how to find the value returned by a function.
78: VALTYPE is the data type of the value (as a tree).
79: If the precise function being called is known, FUNC is its FUNCTION_DECL;
80: otherwise, FUNC is 0. */
81:
82: #define VALUE_REGNO(MODE) \
83: (((MODE)==SFmode || (MODE)==DFmode) ? FIRST_FLOAT_REG : 0)
84:
85: /* 1 if N is a possible register number for a function value. */
86:
87: #define FUNCTION_VALUE_REGNO_P(N) ((N) == 0 || (N)== FIRST_FLOAT_REG)
88:
89: /* This is partly guess. */
90:
91: #undef DBX_REGISTER_NUMBER
92: #define DBX_REGISTER_NUMBER(n) \
93: ((n) == 0 ? 11 : (n) == 1 ? 9 : (n) == 2 ? 10 : (n) == 3 ? 8 \
94: : (n) == 4 ? 5 : (n) == 5 ? 4 : (n) == 6 ? 6 : (n))
95:
96: /* Every debugger symbol must be in the text section.
97: Otherwise the assembler or the linker screws up. */
98:
99: #define DEBUG_SYMS_TEXT
1.1.1.2 root 100:
101: /* This NOP insn makes profiling not fail. */
102:
103: #define ASM_IDENTIFY_GCC(FILE) \
104: fprintf (FILE, (profile_flag ? "gcc_compiled.:\n\tnop\n" : "gcc_compiled.:\n"))
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