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2fa0b342 DHW |
1 | /* Copyright (C) 1991 Free Software Foundation, Inc. |
2 | ||
3 | This file is part of GLD, the Gnu Linker. | |
4 | ||
5 | GLD is free software; you can redistribute it and/or modify | |
6 | it under the terms of the GNU General Public License as published by | |
7 | the Free Software Foundation; either version 1, or (at your option) | |
8 | any later version. | |
9 | ||
10 | GLD is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | GNU General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU General Public License | |
16 | along with GLD; see the file COPYING. If not, write to | |
17 | the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
18 | ||
19 | /* | |
20 | $Id$ | |
21 | ||
22 | $Log$ | |
23 | Revision 1.1 1991/03/21 21:28:26 gumby | |
24 | Initial revision | |
25 | ||
26 | * Revision 1.3 1991/03/16 22:27:24 rich | |
27 | * fish | |
28 | * | |
29 | * Revision 1.2 1991/03/15 18:45:55 rich | |
30 | * foo | |
31 | * | |
32 | * Revision 1.1 1991/03/13 00:48:12 chrisb | |
33 | * Initial revision | |
34 | * | |
35 | * Revision 1.4 1991/03/10 09:31:19 rich | |
36 | * Modified Files: | |
37 | * Makefile config.h ld-emul.c ld-emul.h ld-gld.c ld-gld960.c | |
38 | * ld-lnk960.c ld.h lddigest.c ldexp.c ldexp.h ldfile.c ldfile.h | |
39 | * ldgram.y ldinfo.h ldlang.c ldlang.h ldlex.h ldlex.l ldmain.c | |
40 | * ldmain.h ldmisc.c ldmisc.h ldsym.c ldsym.h ldversion.c | |
41 | * ldversion.h ldwarn.h ldwrite.c ldwrite.h y.tab.h | |
42 | * | |
43 | * As of this round of changes, ld now builds on all hosts of (Intel960) | |
44 | * interest and copy passes my copy test on big endian hosts again. | |
45 | * | |
46 | * Revision 1.3 1991/02/22 17:14:57 sac | |
47 | * Added RCS keywords and copyrights | |
48 | * | |
49 | */ | |
50 | ||
51 | /* | |
52 | * emulate the Intels port of gld | |
53 | */ | |
54 | ||
55 | ||
56 | #include "sysdep.h" | |
57 | #include "bfd.h" | |
58 | ||
59 | ||
60 | #include "ld.h" | |
61 | #include "config.h" | |
62 | #include "ld-emul.h" | |
63 | #include "ldfile.h" | |
64 | #include "ldmisc.h" | |
65 | ||
66 | ||
67 | /* IMPORTS */ | |
68 | extern char *output_filename; | |
69 | extern boolean lang_float_flag; | |
70 | ||
71 | ||
72 | extern enum bfd_architecture ldfile_output_architecture; | |
73 | extern unsigned long ldfile_output_machine; | |
74 | extern char *ldfile_output_machine_name; | |
75 | ||
76 | extern bfd *output_bfd; | |
77 | ||
78 | ||
79 | ||
80 | static void gld960_before_parse() | |
81 | { | |
82 | char *env ; | |
83 | env = getenv("G960LIB"); | |
84 | if (env) { | |
85 | ldfile_add_library_path(env); | |
86 | } | |
87 | env = getenv("G960BASE"); | |
88 | if (env) { | |
89 | ldfile_add_library_path(concat(env,"/lib","")); | |
90 | } | |
91 | ldfile_output_architecture = bfd_arch_i960; | |
92 | } | |
93 | ||
94 | ||
95 | static void | |
96 | gld960_after_parse() | |
97 | { | |
98 | ||
99 | } | |
100 | ||
101 | static void | |
102 | gld960_after_allocation() | |
103 | { | |
104 | ||
105 | } | |
106 | ||
107 | static void | |
108 | gld960_before_allocation() | |
109 | { | |
110 | ||
111 | } | |
112 | ||
113 | ||
114 | static void | |
115 | gld960_set_output_arch() | |
116 | { | |
117 | /* Set the output architecture and machine if possible */ | |
118 | unsigned long machine = 0; | |
119 | bfd_set_arch_mach(output_bfd, ldfile_output_architecture, machine); | |
120 | } | |
121 | ||
122 | static char * | |
123 | gld960_choose_target() | |
124 | { | |
125 | char *from_outside = getenv(TARGET_ENVIRON); | |
126 | output_filename = "b.out"; | |
127 | ||
128 | if (from_outside != (char *)NULL) | |
129 | return from_outside; | |
130 | return GLD960_TARGET; | |
131 | } | |
132 | ||
133 | static void | |
134 | gld960_syslib() | |
135 | { | |
136 | info("%S SYSLIB ignored\n"); | |
137 | } | |
138 | ||
139 | static void | |
140 | gld960_hll() | |
141 | { | |
142 | info("%S HLL ignored\n"); | |
143 | } | |
144 | ||
145 | ||
146 | static char *script = "\ | |
147 | \ | |
148 | SECTIONS \ | |
149 | { \ | |
150 | .text : \ | |
151 | { \ | |
152 | CREATE_OBJECT_SYMBOLS \ | |
153 | *(.text) \ | |
154 | _etext =.;\ | |
155 | } \ | |
156 | \ | |
157 | .data SIZEOF(.text) + ADDR(.text):\ | |
158 | { \ | |
159 | \ | |
160 | *(.data) \ | |
161 | _edata = .; \ | |
162 | } \ | |
163 | .bss SIZEOF(.data) + ADDR(.data) : \ | |
164 | { _bss_start = .;\ | |
165 | *(.bss) \ | |
166 | [COMMON] \ | |
167 | _end = . ; \ | |
168 | } \ | |
169 | } \ | |
170 | "; | |
171 | ||
172 | static char * | |
173 | gld960_get_script() | |
174 | { | |
175 | return script; | |
176 | } | |
177 | ||
178 | struct ld_emulation_xfer_struct ld_gld960_emulation = | |
179 | { | |
180 | gld960_before_parse, | |
181 | gld960_syslib, | |
182 | gld960_hll, | |
183 | gld960_after_parse, | |
184 | gld960_after_allocation, | |
185 | gld960_set_output_arch, | |
186 | gld960_choose_target, | |
187 | gld960_before_allocation, | |
188 | gld960_get_script, | |
189 | }; |