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");