1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
|
/* Target independent definitions for LynxOS.
Copyright (C) 1993, 1994, 1995, 1996 Free Software Foundation, Inc.
This file is part of GNU CC.
GNU CC is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
GNU CC is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with GNU CC; see the file COPYING. If not, write to
the Free Software Foundation, 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
/* LynxOS is a multi-platform Unix, similar to SVR3, but not identical.
We can get quite a bit from generic svr3, but have to do some overrides. */
#include "svr3.h"
/* Define various macros, depending on the combination of flags. */
#undef CPP_SPEC
#define CPP_SPEC "%{mthreads:-D_MULTITHREADED} \
%{mposix:-D_POSIX_SOURCE} \
%{msystem-v:-I/usr/include_v}"
/* No asm spec needed, since using GNU assembler always. */
/* No linker spec needed, since using GNU linker always. */
#undef LIB_SPEC
#define LIB_SPEC "%{mthreads:-L/lib/thread/} \
%{msystem-v:-lc_v} \
%{!msystem-v:%{mposix:-lc_p} -lc -lm}"
/* Set the appropriate names for the Lynx startfiles. */
#undef STARTFILE_SPEC
#define STARTFILE_SPEC "%{p:%{mthreads:thread/pinit1.o%s}%{!mthreads:pinit1.o%s}}%{!p:%{msystem-v:vinit1.o%s -e_start}%{!msystem-v:%{mthreads:thread/init1.o%s}%{!mthreads:init1.o%s}}}"
#undef ENDFILE_SPEC
#define ENDFILE_SPEC "%{p:_etext.o%s}%{!p:initn.o%s}"
/* Override the svr3 versions. */
#undef WCHAR_TYPE
#define WCHAR_TYPE "int"
#undef PTRDIFF_TYPE
#define PTRDIFF_TYPE "long int"
/* We want to output DBX (stabs) debugging information normally. */
#define DBX_DEBUGGING_INFO
#undef PREFERRED_DEBUGGING_TYPE
#define PREFERRED_DEBUGGING_TYPE DBX_DEBUG
/* It is convenient to be able to generate standard coff debugging
if requested via -gcoff. */
#define SDB_DEBUGGING_INFO
/* Be function-relative for block and source line stab directives. */
#define DBX_BLOCKS_FUNCTION_RELATIVE 1
/* but, to make this work, functions must appear prior to line info */
#define DBX_FUNCTION_FIRST
/* Generate a blank trailing N_SO to mark the end of the .o file, since
we can't depend upon the linker to mark .o file boundaries with
embedded stabs. */
#define DBX_OUTPUT_MAIN_SOURCE_FILE_END(FILE, FILENAME) \
fprintf (FILE, \
"\t.text\n\t.stabs \"\",%d,0,0,Letext\nLetext:\n", N_SO)
#undef ASM_OUTPUT_SOURCE_LINE
#define ASM_OUTPUT_SOURCE_LINE(file, line) \
{ static int sym_lineno = 1; \
fprintf (file, ".stabn 68,0,%d,.LM%d-", \
line, sym_lineno); \
assemble_name (file, \
XSTR (XEXP (DECL_RTL (current_function_decl), 0), 0)); \
fprintf (file, "\n.LM%d:\n", sym_lineno); \
sym_lineno += 1; }
/* Handle #pragma pack and sometimes #pragma weak. */
#define HANDLE_SYSV_PRAGMA
/* Some additional command-line options. */
#define TARGET_THREADS (target_flags & MASK_THREADS)
#define MASK_THREADS 0x40000000
#define TARGET_POSIX (target_flags & MASK_POSIX)
#define MASK_POSIX 0x20000000
#define TARGET_SYSTEM_V (target_flags & MASK_SYSTEM_V)
#define MASK_SYSTEM_V 0x10000000
#undef SUBTARGET_SWITCHES
#define SUBTARGET_SWITCHES \
{"threads", MASK_THREADS}, \
{"posix", MASK_POSIX}, \
{"system-v", MASK_SYSTEM_V},
#undef SUBTARGET_OVERRIDE_OPTIONS
#define SUBTARGET_OVERRIDE_OPTIONS \
do { \
if (TARGET_SYSTEM_V && profile_flag) \
warning ("-msystem-v and -p are incompatible"); \
if (TARGET_SYSTEM_V && TARGET_THREADS) \
warning ("-msystem-v and -mthreads are incompatible"); \
} while (0)
/* Define this so that C++ destructors will use atexit, since LynxOS
calls exit after main returns. */
#define HAVE_ATEXIT
/* Since init.o et al put all sorts of stuff into the init section,
we can't use the standard init section support in crtbegin.o. */
#undef INIT_SECTION_ASM_OP
#undef EXTRA_SECTIONS
#define EXTRA_SECTIONS in_const, in_ctors, in_dtors, in_fini
#undef EXTRA_SECTION_FUNCTIONS
#define EXTRA_SECTION_FUNCTIONS \
CONST_SECTION_FUNCTION \
CTORS_SECTION_FUNCTION \
DTORS_SECTION_FUNCTION \
FINI_SECTION_FUNCTION
#undef CTORS_SECTION_ASM_OP
#define CTORS_SECTION_ASM_OP ".section\t.ctors"
#undef DTORS_SECTION_ASM_OP
#define DTORS_SECTION_ASM_OP ".section\t.dtors"
#define INT_ASM_OP ".long"
/* A C statement (sans semicolon) to output an element in the table of
global constructors. */
#undef ASM_OUTPUT_CONSTRUCTOR
#define ASM_OUTPUT_CONSTRUCTOR(FILE,NAME) \
do { \
ctors_section (); \
fprintf (FILE, "\t%s\t ", INT_ASM_OP); \
assemble_name (FILE, NAME); \
fprintf (FILE, "\n"); \
} while (0)
/* A C statement (sans semicolon) to output an element in the table of
global destructors. */
#undef ASM_OUTPUT_DESTRUCTOR
#define ASM_OUTPUT_DESTRUCTOR(FILE,NAME) \
do { \
dtors_section (); \
fprintf (FILE, "\t%s\t ", INT_ASM_OP); \
assemble_name (FILE, NAME); \
fprintf (FILE, "\n"); \
} while (0)
#undef DO_GLOBAL_CTORS_BODY
#undef DO_GLOBAL_DTORS_BODY
/* LynxOS doesn't have mcount. */
#undef FUNCTION_PROFILER
#define FUNCTION_PROFILER(file, profile_label_no)
|
