1# This shell script emits a C file. -*- C -*-
2# It does some substitutions.
3cat >e${EMULATION_NAME}.c <<EOF
4/* intel coff loader emulation specific stuff
5   Copyright 1991, 1992, 1994, 1995, 1996, 1999, 2000, 2001, 2002, 2003, 2005
6   Free Software Foundation, Inc.
7   Written by Steve Chamberlain steve@cygnus.com
8
9This file is part of GLD, the Gnu Linker.
10
11GLD is free software; you can redistribute it and/or modify
12it under the terms of the GNU General Public License as published by
13the Free Software Foundation; either version 2, or (at your option)
14any later version.
15
16GLD is distributed in the hope that it will be useful,
17but WITHOUT ANY WARRANTY; without even the implied warranty of
18MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
19GNU General Public License for more details.
20
21You should have received a copy of the GNU General Public License
22along with GLD; see the file COPYING.  If not, write to
23the Free Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.  */
24
25#include "libiberty.h"
26#include "bfd.h"
27#include "sysdep.h"
28#include "bfdlink.h"
29
30/*#include "archures.h"*/
31#include "ld.h"
32#include "ldmain.h"
33#include "ldmisc.h"
34#include "ldexp.h"
35#include "ldlang.h"
36#include "ldfile.h"
37#include "ldemul.h"
38
39typedef struct lib_list {
40  char *name;
41  struct lib_list *next;
42} lib_list_type;
43
44static lib_list_type *hll_list;
45static lib_list_type **hll_list_tail = &hll_list;
46
47static lib_list_type *syslib_list;
48static lib_list_type **syslib_list_tail = &syslib_list;
49
50
51static void
52append (lib_list_type ***list, char *name)
53{
54  lib_list_type *element = (lib_list_type *) xmalloc (sizeof (lib_list_type));
55
56  element->name = name;
57  element->next = (lib_list_type *) NULL;
58  **list = element;
59  *list = &element->next;
60
61}
62
63static bfd_boolean had_hll = FALSE;
64static bfd_boolean had_hll_name = FALSE;
65
66static void
67lnk960_hll (char *name)
68{
69  had_hll = TRUE;
70  if (name != (char *) NULL)
71    {
72      had_hll_name = TRUE;
73      append (&hll_list_tail, name);
74    }
75}
76
77static void
78lnk960_syslib (char *name)
79{
80  append (&syslib_list_tail, name);
81}
82
83
84static void
85lnk960_before_parse (void)
86{
87  char *name = getenv ("I960BASE");
88
89  if (name == (char *) NULL)
90    {
91      name = getenv("G960BASE");
92      if (name == (char *) NULL)
93	einfo ("%P%F I960BASE and G960BASE not set\n");
94    }
95
96  ldfile_add_library_path (concat (name, "/lib", NULL), FALSE);
97  ldfile_output_architecture = bfd_arch_i960;
98  ldfile_output_machine = bfd_mach_i960_core;
99}
100
101static void
102add_on (lib_list_type *list, lang_input_file_enum_type search)
103{
104  while (list)
105    {
106      lang_add_input_file (list->name, search, (char *) NULL);
107      list = list->next;
108    }
109}
110
111static void
112lnk960_after_parse (void)
113{
114  /* If there has been no arch, default to -KB */
115  if (ldfile_output_machine_name[0] == 0)
116    ldfile_add_arch ("KB");
117
118  /* if there has been no hll list then add our own */
119
120  if (had_hll && !had_hll_name)
121    {
122      append (&hll_list_tail, "cg");
123      if (ldfile_output_machine == bfd_mach_i960_ka_sa
124	  || ldfile_output_machine == bfd_mach_i960_ca)
125	append (&hll_list_tail, "fpg");
126    }
127
128  add_on (hll_list, lang_input_file_is_l_enum);
129  add_on (syslib_list, lang_input_file_is_search_file_enum);
130}
131
132static void
133lnk960_after_allocation (void)
134{
135  if (!link_info.relocatable)
136    {
137      lang_abs_symbol_at_end_of (".text", "_etext");
138      lang_abs_symbol_at_end_of (".data", "_edata");
139      lang_abs_symbol_at_beginning_of (".bss", "_bss_start");
140      lang_abs_symbol_at_end_of (".bss", "_end");
141    }
142}
143
144
145static struct
146 {
147   unsigned  long number;
148   char *name;
149 }
150machine_table[] =
151{
152  { bfd_mach_i960_core	,"CORE" },
153  { bfd_mach_i960_kb_sb	,"KB" },
154  { bfd_mach_i960_kb_sb	,"SB" },
155  { bfd_mach_i960_mc	,"MC" },
156  { bfd_mach_i960_xa	,"XA" },
157  { bfd_mach_i960_ca	,"CA" },
158  { bfd_mach_i960_ka_sa	,"KA" },
159  { bfd_mach_i960_ka_sa	,"SA" },
160  { bfd_mach_i960_jx	,"JX" },
161  { bfd_mach_i960_hx	,"HX" },
162
163  { bfd_mach_i960_core	,"core" },
164  { bfd_mach_i960_kb_sb	,"kb" },
165  { bfd_mach_i960_kb_sb	,"sb" },
166  { bfd_mach_i960_mc	,"mc" },
167  { bfd_mach_i960_xa	,"xa" },
168  { bfd_mach_i960_ca	,"ca" },
169  { bfd_mach_i960_ka_sa	,"ka" },
170  { bfd_mach_i960_ka_sa	,"sa" },
171  { bfd_mach_i960_jx	,"jx" },
172  { bfd_mach_i960_hx	,"hx" },
173
174  { 0, (char *) NULL }
175};
176
177static void
178lnk960_set_output_arch (void)
179{
180  /* Set the output architecture and machine if possible */
181  unsigned int i;
182  ldfile_output_machine = bfd_mach_i960_core;
183  for (i= 0; machine_table[i].name != (char*) NULL; i++)
184    {
185      if (strcmp (ldfile_output_machine_name, machine_table[i].name) == 0)
186	{
187	  ldfile_output_machine = machine_table[i].number;
188	  break;
189	}
190    }
191  bfd_set_arch_mach (output_bfd, ldfile_output_architecture,
192		     ldfile_output_machine);
193}
194
195static char *
196lnk960_choose_target (int argc ATTRIBUTE_UNUSED, char **argv ATTRIBUTE_UNUSED)
197{
198  char *from_outside = getenv (TARGET_ENVIRON);
199  if (from_outside != (char *) NULL)
200    return from_outside;
201#ifdef LNK960_LITTLE
202  return "coff-Intel-little";
203#else
204  return "coff-Intel-big";
205#endif
206}
207
208static char *
209lnk960_get_script (int *isfile)
210EOF
211
212if test -n "$COMPILE_IN"
213then
214# Scripts compiled in.
215
216# sed commands to quote an ld script as a C string.
217sc="-f stringify.sed"
218
219cat >>e${EMULATION_NAME}.c <<EOF
220{
221  *isfile = 0;
222
223  if (link_info.relocatable && config.build_constructors)
224    return
225EOF
226sed $sc ldscripts/${EMULATION_NAME}.xu                 >> e${EMULATION_NAME}.c
227echo '  ; else if (link_info.relocatable) return'     >> e${EMULATION_NAME}.c
228sed $sc ldscripts/${EMULATION_NAME}.xr                 >> e${EMULATION_NAME}.c
229echo '  ; else if (!config.text_read_only) return'     >> e${EMULATION_NAME}.c
230sed $sc ldscripts/${EMULATION_NAME}.xbn                >> e${EMULATION_NAME}.c
231echo '  ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c
232sed $sc ldscripts/${EMULATION_NAME}.xn                 >> e${EMULATION_NAME}.c
233echo '  ; else return'                                 >> e${EMULATION_NAME}.c
234sed $sc ldscripts/${EMULATION_NAME}.x                  >> e${EMULATION_NAME}.c
235echo '; }'                                             >> e${EMULATION_NAME}.c
236
237else
238# Scripts read from the filesystem.
239
240cat >>e${EMULATION_NAME}.c <<EOF
241{
242  *isfile = 1;
243
244  if (link_info.relocatable && config.build_constructors)
245    return "ldscripts/${EMULATION_NAME}.xu";
246  else if (link_info.relocatable)
247    return "ldscripts/${EMULATION_NAME}.xr";
248  else if (!config.text_read_only)
249    return "ldscripts/${EMULATION_NAME}.xbn";
250  else if (!config.magic_demand_paged)
251    return "ldscripts/${EMULATION_NAME}.xn";
252  else
253    return "ldscripts/${EMULATION_NAME}.x";
254}
255EOF
256
257fi
258
259cat >>e${EMULATION_NAME}.c <<EOF
260
261struct ld_emulation_xfer_struct ld_lnk960_emulation =
262{
263  lnk960_before_parse,
264  lnk960_syslib,
265  lnk960_hll,
266  lnk960_after_parse,
267  NULL,			/* after_open */
268  lnk960_after_allocation,
269  lnk960_set_output_arch,
270  lnk960_choose_target,
271  before_allocation_default,
272  lnk960_get_script,
273  "lnk960",
274  "",
275  finish_default,
276  NULL,	/* create output section statements */
277  NULL,	/* open dynamic archive */
278  NULL,	/* place orphan */
279  NULL,	/* set symbols */
280  NULL,	/* parse args */
281  NULL,	/* add_options */
282  NULL,	/* handle_option */
283  NULL,	/* unrecognized file */
284  NULL,	/* list options */
285  NULL,	/* recognized file */
286  NULL,	/* find_potential_libraries */
287  NULL	/* new_vers_pattern */
288};
289EOF
290