1 /* Shared library support for RS/6000 (xcoff) object files, for GDB.
2 Copyright 1991, 1992 Free Software Foundation.
3 Contributed by IBM Corporation.
5 This file is part of GDB.
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.
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.
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, Boston, MA 02111-1307, USA. */
22 #include <sys/types.h>
28 #include "xcoffsolib.h"
32 /* Hook to relocate symbols at runtime. If gdb is build natively, this
33 hook is initialized in by rs6000-nat.c. If not, it is currently left
34 NULL and never called. */
36 void (*xcoff_relocate_symtab_hook) PARAMS ((unsigned int)) = NULL;
38 #ifdef SOLIB_SYMBOLS_MANUAL
40 extern struct symtab *current_source_symtab;
41 extern int current_source_line;
43 /* The real work of adding a shared library file to the symtab and
47 solib_add (arg_string, from_tty, target)
50 struct target_ops *target;
53 struct vmap *vp = vmap;
55 struct symtab *saved_symtab;
58 int loaded = 0; /* true if any shared obj loaded */
59 int matched = 0; /* true if any shared obj matched */
63 else if (val = (char *) re_comp (arg_string)) {
64 error ("Invalid regexp: %s", val);
69 /* save current symbol table and line number, in case they get changed
70 in symbol loading process. */
72 saved_symtab = current_source_symtab;
73 saved_line = current_source_line;
75 /* skip over the first vmap, it is the main program, always loaded. */
78 for (; vp; vp = vp->nxt) {
80 if (re_exec (vp->name) || (*vp->member && re_exec (vp->member))) {
84 /* if already loaded, continue with the next one. */
87 printf_unfiltered ("%s%s%s%s: already loaded.\n",
88 *vp->member ? "(" : "",
90 *vp->member ? ") " : "",
95 printf_unfiltered ("Loading %s%s%s%s...",
96 *vp->member ? "(" : "",
98 *vp->member ? ") " : "",
100 gdb_flush (gdb_stdout);
102 /* This is gross and doesn't work. If this code is re-enabled,
103 just stick a objfile member into the struct vmap; that's the
104 way solib.c (for SunOS/SVR4) does it. */
105 obj = lookup_objfile_bfd (vp->bfd);
107 warning ("\nObj structure for the shared object not found. Loading failed.");
111 syms_from_objfile (obj, 0, 0, 0);
112 new_symfile_objfile (obj, 0, 0);
113 vmap_symtab (vp, 0, 0);
114 printf_unfiltered ("Done.\n");
115 loaded = vp->loaded = 1;
118 /* if any shared object is loaded, then misc_func_vector needs sorting. */
121 sort_misc_function_vector ();
123 current_source_symtab = saved_symtab;
124 current_source_line = saved_line;
126 /* Getting new symbols might change our opinion about what is frameless.
127 Is this correct?? FIXME. */
128 /* reinit_frame_cache(); */
131 printf_unfiltered ("No matching shared object found.\n");
133 #endif /* SOLIB_SYMBOLS_MANUAL */
135 /* Return the module name of a given text address. Note that returned buffer
136 is not persistent. */
139 pc_load_segment_name (addr)
142 static char buffer [BUFSIZ];
143 struct vmap *vp = vmap;
145 buffer [0] = buffer [1] = '\0';
146 for (; vp; vp = vp->nxt)
147 if (vp->tstart <= addr && addr < vp->tend) {
150 strcat (&buffer[1], vp->member);
151 strcat (buffer, ")");
153 strcat (buffer, vp->name);
156 return "(unknown load module)";
159 static void solib_info PARAMS ((char *, int));
162 solib_info (args, from_tty)
166 struct vmap *vp = vmap;
168 /* Check for new shared libraries loaded with load (). */
169 if (xcoff_relocate_symtab_hook != NULL)
170 (*xcoff_relocate_symtab_hook) (inferior_pid);
172 if (vp == NULL || vp->nxt == NULL)
174 printf_unfiltered ("No shared libraries loaded at this time.\n");
178 /* Skip over the first vmap, it is the main program, always loaded. */
181 printf_unfiltered ("\
182 Text Range Data Range Syms Shared Object Library\n");
184 for (; vp != NULL; vp = vp->nxt)
186 printf_unfiltered ("0x%08x-0x%08x 0x%08x-0x%08x %s %s%s%s%s\n",
187 vp->tstart, vp->tend,
188 vp->dstart, vp->dend,
189 vp->loaded ? "Yes" : "No ",
190 *vp->member ? "(" : "",
192 *vp->member ? ") " : "",
198 sharedlibrary_command (args, from_tty)
204 /* Check for new shared libraries loaded with load (). */
205 if (xcoff_relocate_symtab_hook != NULL)
206 (*xcoff_relocate_symtab_hook) (inferior_pid);
208 #ifdef SOLIB_SYMBOLS_MANUAL
209 solib_add (args, from_tty, (struct target_ops *)0);
210 #endif /* SOLIB_SYMBOLS_MANUAL */
216 add_com ("sharedlibrary", class_files, sharedlibrary_command,
217 "Load shared object library symbols for files matching REGEXP.");
218 add_info ("sharedlibrary", solib_info,
219 "Status of loaded shared object libraries");