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,
20 Boston, MA 02111-1307, USA. */
23 #include <sys/types.h>
29 #include "xcoffsolib.h"
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. */
37 void (*xcoff_relocate_symtab_hook) (unsigned int) = NULL;
39 #ifdef SOLIB_SYMBOLS_MANUAL
41 extern struct symtab *current_source_symtab;
42 extern int current_source_line;
44 /* The real work of adding a shared library file to the symtab and
48 solib_add (char *arg_string, int from_tty, struct target_ops *target)
51 struct vmap *vp = vmap;
53 struct symtab *saved_symtab;
56 int loaded = 0; /* true if any shared obj loaded */
57 int matched = 0; /* true if any shared obj matched */
61 else if (val = (char *) re_comp (arg_string))
63 error ("Invalid regexp: %s", val);
68 /* save current symbol table and line number, in case they get changed
69 in symbol loading process. */
71 saved_symtab = current_source_symtab;
72 saved_line = current_source_line;
74 /* skip over the first vmap, it is the main program, always loaded. */
77 for (; vp; vp = vp->nxt)
80 if (re_exec (vp->name) || (*vp->member && re_exec (vp->member)))
85 /* if already loaded, continue with the next one. */
89 printf_unfiltered ("%s%s%s%s: already loaded.\n",
90 *vp->member ? "(" : "",
92 *vp->member ? ") " : "",
97 printf_unfiltered ("Loading %s%s%s%s...",
98 *vp->member ? "(" : "",
100 *vp->member ? ") " : "",
102 gdb_flush (gdb_stdout);
104 /* This is gross and doesn't work. If this code is re-enabled,
105 just stick a objfile member into the struct vmap; that's the
106 way solib.c (for SunOS/SVR4) does it. */
107 obj = lookup_objfile_bfd (vp->bfd);
110 warning ("\nObj structure for the shared object not found. Loading failed.");
114 syms_from_objfile (obj, NULL, 0, 0);
115 new_symfile_objfile (obj, 0, 0);
117 printf_unfiltered ("Done.\n");
118 loaded = vp->loaded = 1;
121 /* if any shared object is loaded, then misc_func_vector needs sorting. */
125 sort_misc_function_vector ();
127 current_source_symtab = saved_symtab;
128 current_source_line = saved_line;
130 /* Getting new symbols might change our opinion about what is frameless.
131 Is this correct?? FIXME. */
132 /* reinit_frame_cache(); */
135 printf_unfiltered ("No matching shared object found.\n");
137 #endif /* SOLIB_SYMBOLS_MANUAL */
139 /* Return the module name of a given text address. Note that returned buffer
140 is not persistent. */
143 pc_load_segment_name (CORE_ADDR addr)
145 static char buffer[BUFSIZ];
146 struct vmap *vp = vmap;
148 buffer[0] = buffer[1] = '\0';
149 for (; vp; vp = vp->nxt)
150 if (vp->tstart <= addr && addr < vp->tend)
155 strcat (&buffer[1], vp->member);
156 strcat (buffer, ")");
158 strcat (buffer, vp->name);
161 return "(unknown load module)";
164 static void solib_info (char *, int);
167 solib_info (char *args, int from_tty)
169 struct vmap *vp = vmap;
171 /* Check for new shared libraries loaded with load (). */
172 if (xcoff_relocate_symtab_hook != NULL)
173 (*xcoff_relocate_symtab_hook) (inferior_pid);
175 if (vp == NULL || vp->nxt == NULL)
177 printf_unfiltered ("No shared libraries loaded at this time.\n");
181 /* Skip over the first vmap, it is the main program, always loaded. */
184 printf_unfiltered ("\
185 Text Range Data Range Syms Shared Object Library\n");
187 for (; vp != NULL; vp = vp->nxt)
189 printf_unfiltered ("0x%s-0x%s 0x%s-0x%s %s %s%s%s%s\n",
190 paddr (vp->tstart),paddr (vp->tend),
191 paddr (vp->dstart), paddr (vp->dend),
192 vp->loaded ? "Yes" : "No ",
193 *vp->member ? "(" : "",
195 *vp->member ? ") " : "",
201 sharedlibrary_command (char *args, int from_tty)
205 /* Check for new shared libraries loaded with load (). */
206 if (xcoff_relocate_symtab_hook != NULL)
207 (*xcoff_relocate_symtab_hook) (inferior_pid);
209 #ifdef SOLIB_SYMBOLS_MANUAL
210 solib_add (args, from_tty, (struct target_ops *) 0);
211 #endif /* SOLIB_SYMBOLS_MANUAL */
215 _initialize_solib (void)
217 add_com ("sharedlibrary", class_files, sharedlibrary_command,
218 "Load shared object library symbols for files matching REGEXP.");
219 add_info ("sharedlibrary", solib_info,
220 "Status of loaded shared object libraries");