OpenCores
URL https://opencores.org/ocsvn/or1k/or1k/trunk

Subversion Repositories or1k

[/] [or1k/] [trunk/] [gdb-5.0/] [gdb/] [xcoffsolib.c] - Blame information for rev 1765

Details | Compare with Previous | View Log

Line No. Rev Author Line
1 104 markom
/* Shared library support for RS/6000 (xcoff) object files, for GDB.
2
   Copyright 1991, 1992 Free Software Foundation.
3
   Contributed by IBM Corporation.
4
 
5
   This file is part of GDB.
6
 
7
   This program is free software; you can redistribute it and/or modify
8
   it under the terms of the GNU General Public License as published by
9
   the Free Software Foundation; either version 2 of the License, or
10
   (at your option) any later version.
11
 
12
   This program is distributed in the hope that it will be useful,
13
   but WITHOUT ANY WARRANTY; without even the implied warranty of
14
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15
   GNU General Public License for more details.
16
 
17
   You should have received a copy of the GNU General Public License
18
   along with this program; if not, write to the Free Software
19
   Foundation, Inc., 59 Temple Place - Suite 330,
20
   Boston, MA 02111-1307, USA.  */
21
 
22
#if 0
23
#include <sys/types.h>
24
#include <sys/ldr.h>
25
#endif
26
 
27
#include "defs.h"
28
#include "bfd.h"
29
#include "xcoffsolib.h"
30
#include "inferior.h"
31
#include "command.h"
32
 
33
/* Hook to relocate symbols at runtime.  If gdb is build natively, this
34
   hook is initialized in by rs6000-nat.c.  If not, it is currently left
35
   NULL and never called. */
36
 
37
void (*xcoff_relocate_symtab_hook) PARAMS ((unsigned int)) = NULL;
38
 
39
#ifdef SOLIB_SYMBOLS_MANUAL
40
 
41
extern struct symtab *current_source_symtab;
42
extern int current_source_line;
43
 
44
/* The real work of adding a shared library file to the symtab and
45
   the section list.  */
46
 
47
void
48
solib_add (arg_string, from_tty, target)
49
     char *arg_string;
50
     int from_tty;
51
     struct target_ops *target;
52
{
53
  char *val;
54
  struct vmap *vp = vmap;
55
  struct objfile *obj;
56
  struct symtab *saved_symtab;
57
  int saved_line;
58
 
59
  int loaded = 0;                /* true if any shared obj loaded */
60
  int matched = 0;               /* true if any shared obj matched */
61
 
62
  if (arg_string == 0)
63
    re_comp (".");
64
  else if (val = (char *) re_comp (arg_string))
65
    {
66
      error ("Invalid regexp: %s", val);
67
    }
68
  if (!vp || !vp->nxt)
69
    return;
70
 
71
  /* save current symbol table and line number, in case they get changed
72
     in symbol loading process. */
73
 
74
  saved_symtab = current_source_symtab;
75
  saved_line = current_source_line;
76
 
77
  /* skip over the first vmap, it is the main program, always loaded. */
78
  vp = vp->nxt;
79
 
80
  for (; vp; vp = vp->nxt)
81
    {
82
 
83
      if (re_exec (vp->name) || (*vp->member && re_exec (vp->member)))
84
        {
85
 
86
          matched = 1;
87
 
88
          /* if already loaded, continue with the next one. */
89
          if (vp->loaded)
90
            {
91
 
92
              printf_unfiltered ("%s%s%s%s: already loaded.\n",
93
                                 *vp->member ? "(" : "",
94
                                 vp->member,
95
                                 *vp->member ? ") " : "",
96
                                 vp->name);
97
              continue;
98
            }
99
 
100
          printf_unfiltered ("Loading  %s%s%s%s...",
101
                             *vp->member ? "(" : "",
102
                             vp->member,
103
                             *vp->member ? ") " : "",
104
                             vp->name);
105
          gdb_flush (gdb_stdout);
106
 
107
          /* This is gross and doesn't work.  If this code is re-enabled,
108
             just stick a objfile member into the struct vmap; that's the
109
             way solib.c (for SunOS/SVR4) does it.  */
110
          obj = lookup_objfile_bfd (vp->bfd);
111
          if (!obj)
112
            {
113
              warning ("\nObj structure for the shared object not found. Loading failed.");
114
              continue;
115
            }
116
 
117
          syms_from_objfile (obj, NULL, 0, 0);
118
          new_symfile_objfile (obj, 0, 0);
119
          vmap_symtab (vp);
120
          printf_unfiltered ("Done.\n");
121
          loaded = vp->loaded = 1;
122
        }
123
    }
124
  /* if any shared object is loaded, then misc_func_vector needs sorting. */
125
  if (loaded)
126
    {
127
#if 0
128
      sort_misc_function_vector ();
129
#endif
130
      current_source_symtab = saved_symtab;
131
      current_source_line = saved_line;
132
 
133
      /* Getting new symbols might change our opinion about what is frameless.
134
         Is this correct?? FIXME. */
135
/*    reinit_frame_cache(); */
136
    }
137
  else if (!matched)
138
    printf_unfiltered ("No matching shared object found.\n");
139
}
140
#endif /* SOLIB_SYMBOLS_MANUAL */
141
 
142
/* Return the module name of a given text address. Note that returned buffer
143
   is not persistent. */
144
 
145
char *
146
pc_load_segment_name (addr)
147
     CORE_ADDR addr;
148
{
149
  static char buffer[BUFSIZ];
150
  struct vmap *vp = vmap;
151
 
152
  buffer[0] = buffer[1] = '\0';
153
  for (; vp; vp = vp->nxt)
154
    if (vp->tstart <= addr && addr < vp->tend)
155
      {
156
        if (*vp->member)
157
          {
158
            buffer[0] = '(';
159
            strcat (&buffer[1], vp->member);
160
            strcat (buffer, ")");
161
          }
162
        strcat (buffer, vp->name);
163
        return buffer;
164
      }
165
  return "(unknown load module)";
166
}
167
 
168
static void solib_info PARAMS ((char *, int));
169
 
170
static void
171
solib_info (args, from_tty)
172
     char *args;
173
     int from_tty;
174
{
175
  struct vmap *vp = vmap;
176
 
177
  /* Check for new shared libraries loaded with load ().  */
178
  if (xcoff_relocate_symtab_hook != NULL)
179
    (*xcoff_relocate_symtab_hook) (inferior_pid);
180
 
181
  if (vp == NULL || vp->nxt == NULL)
182
    {
183
      printf_unfiltered ("No shared libraries loaded at this time.\n");
184
      return;
185
    }
186
 
187
  /* Skip over the first vmap, it is the main program, always loaded.  */
188
  vp = vp->nxt;
189
 
190
  printf_unfiltered ("\
191
Text Range              Data Range              Syms    Shared Object Library\n");
192
 
193
  for (; vp != NULL; vp = vp->nxt)
194
    {
195
      printf_unfiltered ("0x%s-0x%s     0x%s-0x%s       %s      %s%s%s%s\n",
196
                         paddr (vp->tstart),paddr (vp->tend),
197
                         paddr (vp->dstart), paddr (vp->dend),
198
                         vp->loaded ? "Yes" : "No ",
199
                         *vp->member ? "(" : "",
200
                         vp->member,
201
                         *vp->member ? ") " : "",
202
                         vp->name);
203
    }
204
}
205
 
206
void
207
sharedlibrary_command (args, from_tty)
208
     char *args;
209
     int from_tty;
210
{
211
  dont_repeat ();
212
 
213
  /* Check for new shared libraries loaded with load ().  */
214
  if (xcoff_relocate_symtab_hook != NULL)
215
    (*xcoff_relocate_symtab_hook) (inferior_pid);
216
 
217
#ifdef SOLIB_SYMBOLS_MANUAL
218
  solib_add (args, from_tty, (struct target_ops *) 0);
219
#endif /* SOLIB_SYMBOLS_MANUAL */
220
}
221
 
222
void
223
_initialize_solib ()
224
{
225
  add_com ("sharedlibrary", class_files, sharedlibrary_command,
226
           "Load shared object library symbols for files matching REGEXP.");
227
  add_info ("sharedlibrary", solib_info,
228
            "Status of loaded shared object libraries");
229
}

powered by: WebSVN 2.1.0

© copyright 1999-2024 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.