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1.1 root 1: /* Definitions for DECstation running BSD as target machine for GNU compiler.
2: Copyright (C) 1993, 1995 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 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
18: the Free Software Foundation, 59 Temple Place - Suite 330,
19: Boston, MA 02111-1307, USA. */
20:
21: #define DECSTATION
22:
23: /* Look for the include files in the system-defined places. */
24:
25: #ifndef CROSS_COMPILE
26: #undef GPLUSPLUS_INCLUDE_DIR
27: #define GPLUSPLUS_INCLUDE_DIR "/usr/include/g++"
28:
29: #undef GCC_INCLUDE_DIR
30: #define GCC_INCLUDE_DIR "/usr/include"
31:
32: #undef INCLUDE_DEFAULTS
33: #define INCLUDE_DEFAULTS \
34: { \
35: { GPLUSPLUS_INCLUDE_DIR, 1, 1 }, \
36: { GCC_INCLUDE_DIR, 0, 0 }, \
37: { 0, 0, 0 } \
38: }
39:
40: /* Under NetBSD, the normal location of the various *crt*.o files is the
41: /usr/lib directory. */
42:
43: #undef STANDARD_STARTFILE_PREFIX
44: #define STANDARD_STARTFILE_PREFIX "/usr/lib/"
45: #endif
46:
47: /* Provide a LINK_SPEC appropriate for NetBSD. Here we provide support
48: for the special GCC options -static, -assert, and -nostdlib. */
49:
50: #undef LINK_SPEC
51: #define LINK_SPEC \
52: "%{G*} %{EB} %{EL} %{mips1} %{mips2} %{mips3} \
53: %{!nostdlib:%{!r*:%{!e*:-e __start}}} -dc -dp %{static:-Bstatic} %{assert*}"
54:
55: /* We have atexit(3). */
56:
57: #define HAVE_ATEXIT
58:
59: /* Implicit library calls should use memcpy, not bcopy, etc. */
60:
61: #define TARGET_MEM_FUNCTIONS
62:
63: /* Define mips-specific netbsd predefines... */
64: #ifndef CPP_PREDEFINES
65: #define CPP_PREDEFINES "-D__ANSI_COMPAT \
66: -DMIPSEL -DR3000 -DSYSTYPE_BSD -D_SYSTYPE_BSD -D__NetBSD__ -Dmips \
67: -D__NO_LEADING_UNDERSCORES__ -D__GP_SUPPORT__ \
68: -Dunix -D_R3000 \
69: -Asystem(unix) -Asystem(NetBSD) -Amachine(mips)"
70: #endif
71:
72: /* Always uses gas. */
73: #ifndef ASM_SPEC
74: #define ASM_SPEC "\
75: %{G*} %{EB} %{EL} %{mips1} %{mips2} %{mips3} %{v} \
76: %{noasmopt:-O0} \
77: %{!noasmopt:%{O:-O2} %{O1:-O2} %{O2:-O2} %{O3:-O3}} \
78: %{g} %{g0} %{g1} %{g2} %{g3} \
79: %{ggdb:-g} %{ggdb0:-g0} %{ggdb1:-g1} %{ggdb2:-g2} %{ggdb3:-g3} \
80: %{gstabs:-g} %{gstabs0:-g0} %{gstabs1:-g1} %{gstabs2:-g2} %{gstabs3:-g3} \
81: %{gstabs+:-g} %{gstabs+0:-g0} %{gstabs+1:-g1} %{gstabs+2:-g2} %{gstabs+3:-g3} \
82: %{gcoff:-g} %{gcoff0:-g0} %{gcoff1:-g1} %{gcoff2:-g2} %{gcoff3:-g3}"
83: #endif
84:
85: #ifndef CPP_SPEC
86: #define CPP_SPEC "\
87: %{posix:-D_POSIX_SOURCE} \
88: %{mlong64:-D__SIZE_TYPE__=long\\ unsigned\\ int -D__PTRDIFF_TYPE__=long\\ int} \
89: %{!mlong64:-D__SIZE_TYPE__=unsigned\\ int -D__PTRDIFF_TYPE__=int} \
90: %{mips3:-U__mips -D__mips=3 -D__mips64} \
91: %{mgp32:-U__mips64} %{mgp64:-D__mips64}"
92: #endif
93:
94: #define LIB_SPEC "%{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}"
95: #define STARTFILE_SPEC ""
96:
97: #ifndef MACHINE_TYPE
98: #define MACHINE_TYPE "NetBSD/pmax"
99: #endif
100:
101: #define TARGET_DEFAULT MASK_GAS
102: #define PREFERRED_DEBUGGING_TYPE DBX_DEBUG
103:
104: #define LOCAL_LABEL_PREFIX "."
105:
106: #include "mips/mips.h"
107:
108: /*
109: * Some imports from svr4.h in support of shared libraries.
110: * Currently, we need the DECLARE_OBJECT_SIZE stuff.
111: */
112:
113: /* Define the strings used for the special svr4 .type and .size directives.
114: These strings generally do not vary from one system running svr4 to
115: another, but if a given system (e.g. m88k running svr) needs to use
116: different pseudo-op names for these, they may be overridden in the
117: file which includes this one. */
118:
119: #undef TYPE_ASM_OP
120: #undef SIZE_ASM_OP
121: #undef WEAK_ASM_OP
122: #define TYPE_ASM_OP ".type"
123: #define SIZE_ASM_OP ".size"
124: #define WEAK_ASM_OP ".weak"
125:
126: /* The following macro defines the format used to output the second
127: operand of the .type assembler directive. Different svr4 assemblers
128: expect various different forms for this operand. The one given here
129: is just a default. You may need to override it in your machine-
130: specific tm.h file (depending upon the particulars of your assembler). */
131:
132: #undef TYPE_OPERAND_FMT
133: #define TYPE_OPERAND_FMT "@%s"
134:
135: /* Write the extra assembler code needed to declare a function's result.
136: Most svr4 assemblers don't require any special declaration of the
137: result value, but there are exceptions. */
138:
139: #ifndef ASM_DECLARE_RESULT
140: #define ASM_DECLARE_RESULT(FILE, RESULT)
141: #endif
142:
143: /* These macros generate the special .type and .size directives which
144: are used to set the corresponding fields of the linker symbol table
145: entries in an ELF object file under SVR4. These macros also output
146: the starting labels for the relevant functions/objects. */
147:
148: /* Write the extra assembler code needed to declare a function properly.
149: Some svr4 assemblers need to also have something extra said about the
150: function's return value. We allow for that here. */
151:
152: #undef ASM_DECLARE_FUNCTION_NAME
153: #define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL) \
154: do { \
155: fprintf (FILE, "\t%s\t ", TYPE_ASM_OP); \
156: assemble_name (FILE, NAME); \
157: putc (',', FILE); \
158: fprintf (FILE, TYPE_OPERAND_FMT, "function"); \
159: putc ('\n', FILE); \
160: ASM_DECLARE_RESULT (FILE, DECL_RESULT (DECL)); \
161: } while (0)
162:
163: /* Write the extra assembler code needed to declare an object properly. */
164:
165: #undef ASM_DECLARE_OBJECT_NAME
166: #define ASM_DECLARE_OBJECT_NAME(FILE, NAME, DECL) \
167: do { \
168: fprintf (FILE, "\t%s\t ", TYPE_ASM_OP); \
169: assemble_name (FILE, NAME); \
170: putc (',', FILE); \
171: fprintf (FILE, TYPE_OPERAND_FMT, "object"); \
172: putc ('\n', FILE); \
173: size_directive_output = 0; \
174: if (!flag_inhibit_size_directive && DECL_SIZE (DECL)) \
175: { \
176: size_directive_output = 1; \
177: fprintf (FILE, "\t%s\t ", SIZE_ASM_OP); \
178: assemble_name (FILE, NAME); \
179: fprintf (FILE, ",%d\n", int_size_in_bytes (TREE_TYPE (DECL))); \
180: } \
181: ASM_OUTPUT_LABEL(FILE, NAME); \
182: } while (0)
183:
184: /* Output the size directive for a decl in rest_of_decl_compilation
185: in the case where we did not do so before the initializer.
186: Once we find the error_mark_node, we know that the value of
187: size_directive_output was set
188: by ASM_DECLARE_OBJECT_NAME when it was run for the same decl. */
189:
190: #undef ASM_FINISH_DECLARE_OBJECT
191: #define ASM_FINISH_DECLARE_OBJECT(FILE, DECL, TOP_LEVEL, AT_END) \
192: do { \
193: char *name = XSTR (XEXP (DECL_RTL (DECL), 0), 0); \
194: if (!flag_inhibit_size_directive && DECL_SIZE (DECL) \
195: && ! AT_END && TOP_LEVEL \
196: && DECL_INITIAL (DECL) == error_mark_node \
197: && !size_directive_output) \
198: { \
199: size_directive_output = 1; \
200: fprintf (FILE, "\t%s\t ", SIZE_ASM_OP); \
201: assemble_name (FILE, name); \
202: fprintf (FILE, ",%d\n", int_size_in_bytes (TREE_TYPE (DECL))); \
203: } \
204: } while (0)
205:
206: /* This is how to declare the size of a function. */
207:
208: #undef ASM_DECLARE_FUNCTION_SIZE
209: #define ASM_DECLARE_FUNCTION_SIZE(FILE, FNAME, DECL) \
210: do { \
211: if (!flag_inhibit_size_directive) \
212: { \
213: char label[256]; \
214: static int labelno; \
215: labelno++; \
216: ASM_GENERATE_INTERNAL_LABEL (label, "Lfe", labelno); \
217: ASM_OUTPUT_INTERNAL_LABEL (FILE, "Lfe", labelno); \
218: fprintf (FILE, "\t%s\t ", SIZE_ASM_OP); \
219: assemble_name (FILE, (FNAME)); \
220: fprintf (FILE, ","); \
221: assemble_name (FILE, label); \
222: fprintf (FILE, "-"); \
223: assemble_name (FILE, (FNAME)); \
224: putc ('\n', FILE); \
225: } \
226: } while (0)
227:
228: /* Since gas and gld are standard on NetBSD, we don't need these */
229: #undef ASM_FINAL_SPEC
230: #undef STARTFILE_SPEC
231:
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