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"
31 /* Hook to relocate symbols at runtime. If gdb is build natively, this
32 hook is initialized in by rs6000-nat.c. If not, it is currently left
33 NULL and never called. */
35 void (*xcoff_relocate_symtab_hook
) PARAMS ((unsigned int)) = NULL
;
37 #ifdef SOLIB_SYMBOLS_MANUAL
39 extern struct symtab
*current_source_symtab
;
40 extern int current_source_line
;
42 /* The real work of adding a shared library file to the symtab and
46 solib_add (arg_string
, from_tty
, target
)
49 struct target_ops
*target
;
52 struct vmap
*vp
= vmap
;
54 struct symtab
*saved_symtab
;
57 int loaded
= 0; /* true if any shared obj loaded */
58 int matched
= 0; /* true if any shared obj matched */
62 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
) {
79 if (re_exec (vp
->name
) || (*vp
->member
&& re_exec (vp
->member
))) {
83 /* if already loaded, continue with the next one. */
86 printf_unfiltered ("%s%s%s%s: already loaded.\n",
87 *vp
->member
? "(" : "",
89 *vp
->member
? ") " : "",
94 printf_unfiltered ("Loading %s%s%s%s...",
95 *vp
->member
? "(" : "",
97 *vp
->member
? ") " : "",
99 gdb_flush (gdb_stdout
);
101 /* This is gross and doesn't work. If this code is re-enabled,
102 just stick a objfile member into the struct vmap; that's the
103 way solib.c (for SunOS/SVR4) does it. */
104 obj
= lookup_objfile_bfd (vp
->bfd
);
106 warning ("\nObj structure for the shared object not found. Loading failed.");
110 syms_from_objfile (obj
, 0, 0, 0);
111 new_symfile_objfile (obj
, 0, 0);
112 vmap_symtab (vp
, 0, 0);
113 printf_unfiltered ("Done.\n");
114 loaded
= vp
->loaded
= 1;
117 /* if any shared object is loaded, then misc_func_vector needs sorting. */
120 sort_misc_function_vector ();
122 current_source_symtab
= saved_symtab
;
123 current_source_line
= saved_line
;
125 /* Getting new symbols might change our opinion about what is frameless.
126 Is this correct?? FIXME. */
127 /* reinit_frame_cache(); */
130 printf_unfiltered ("No matching shared object found.\n");
132 #endif /* SOLIB_SYMBOLS_MANUAL */
134 /* Return the module name of a given text address. Note that returned buffer
135 is not persistent. */
138 pc_load_segment_name (addr
)
141 static char buffer
[BUFSIZ
];
142 struct vmap
*vp
= vmap
;
144 buffer
[0] = buffer
[1] = '\0';
145 for (; vp
; vp
= vp
->nxt
)
146 if (vp
->tstart
<= addr
&& addr
< vp
->tend
) {
149 strcat (&buffer
[1], vp
->member
);
150 strcat (buffer
, ")");
152 strcat (buffer
, vp
->name
);
155 return "(unknown load module)";
158 static void solib_info
PARAMS ((char *, int));
161 solib_info (args
, from_tty
)
165 struct vmap
*vp
= vmap
;
167 /* Check for new shared libraries loaded with load (). */
168 if (xcoff_relocate_symtab_hook
!= NULL
)
169 (*xcoff_relocate_symtab_hook
) (inferior_pid
);
171 if (vp
== NULL
|| vp
->nxt
== NULL
)
173 printf_unfiltered ("No shared libraries loaded at this time.\n");
177 /* Skip over the first vmap, it is the main program, always loaded. */
180 printf_unfiltered ("\
181 Text Range Data Range Syms Shared Object Library\n");
183 for (; vp
!= NULL
; vp
= vp
->nxt
)
185 printf_unfiltered ("0x%08x-0x%08x 0x%08x-0x%08x %s %s%s%s%s\n",
186 vp
->tstart
, vp
->tend
,
187 vp
->dstart
, vp
->dend
,
188 vp
->loaded
? "Yes" : "No ",
189 *vp
->member
? "(" : "",
191 *vp
->member
? ") " : "",
197 sharedlibrary_command (args
, from_tty
)
203 /* Check for new shared libraries loaded with load (). */
204 if (xcoff_relocate_symtab_hook
!= NULL
)
205 (*xcoff_relocate_symtab_hook
) (inferior_pid
);
207 #ifdef SOLIB_SYMBOLS_MANUAL
208 solib_add (args
, from_tty
, (struct target_ops
*)0);
209 #endif /* SOLIB_SYMBOLS_MANUAL */
215 add_com ("sharedlibrary", class_files
, sharedlibrary_command
,
216 "Load shared object library symbols for files matching REGEXP.");
217 add_info ("sharedlibrary", solib_info
,
218 "Status of loaded shared object libraries");