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
) PARAMS ((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 (arg_string
, from_tty
, target
)
51 struct target_ops
*target
;
54 struct vmap
*vp
= vmap
;
56 struct symtab
*saved_symtab
;
59 int loaded
= 0; /* true if any shared obj loaded */
60 int matched
= 0; /* true if any shared obj matched */
64 else if (val
= (char *) re_comp (arg_string
))
66 error ("Invalid regexp: %s", val
);
71 /* save current symbol table and line number, in case they get changed
72 in symbol loading process. */
74 saved_symtab
= current_source_symtab
;
75 saved_line
= current_source_line
;
77 /* skip over the first vmap, it is the main program, always loaded. */
80 for (; vp
; vp
= vp
->nxt
)
83 if (re_exec (vp
->name
) || (*vp
->member
&& re_exec (vp
->member
)))
88 /* if already loaded, continue with the next one. */
92 printf_unfiltered ("%s%s%s%s: already loaded.\n",
93 *vp
->member
? "(" : "",
95 *vp
->member
? ") " : "",
100 printf_unfiltered ("Loading %s%s%s%s...",
101 *vp
->member
? "(" : "",
103 *vp
->member
? ") " : "",
105 gdb_flush (gdb_stdout
);
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
);
113 warning ("\nObj structure for the shared object not found. Loading failed.");
117 syms_from_objfile (obj
, 0, 0, 0);
118 new_symfile_objfile (obj
, 0, 0);
119 vmap_symtab (vp
, 0, 0);
120 printf_unfiltered ("Done.\n");
121 loaded
= vp
->loaded
= 1;
124 /* if any shared object is loaded, then misc_func_vector needs sorting. */
128 sort_misc_function_vector ();
130 current_source_symtab
= saved_symtab
;
131 current_source_line
= saved_line
;
133 /* Getting new symbols might change our opinion about what is frameless.
134 Is this correct?? FIXME. */
135 /* reinit_frame_cache(); */
138 printf_unfiltered ("No matching shared object found.\n");
140 #endif /* SOLIB_SYMBOLS_MANUAL */
142 /* Return the module name of a given text address. Note that returned buffer
143 is not persistent. */
146 pc_load_segment_name (addr
)
149 static char buffer
[BUFSIZ
];
150 struct vmap
*vp
= vmap
;
152 buffer
[0] = buffer
[1] = '\0';
153 for (; vp
; vp
= vp
->nxt
)
154 if (vp
->tstart
<= addr
&& addr
< vp
->tend
)
159 strcat (&buffer
[1], vp
->member
);
160 strcat (buffer
, ")");
162 strcat (buffer
, vp
->name
);
165 return "(unknown load module)";
168 static void solib_info
PARAMS ((char *, int));
171 solib_info (args
, from_tty
)
175 struct vmap
*vp
= vmap
;
177 /* Check for new shared libraries loaded with load (). */
178 if (xcoff_relocate_symtab_hook
!= NULL
)
179 (*xcoff_relocate_symtab_hook
) (inferior_pid
);
181 if (vp
== NULL
|| vp
->nxt
== NULL
)
183 printf_unfiltered ("No shared libraries loaded at this time.\n");
187 /* Skip over the first vmap, it is the main program, always loaded. */
190 printf_unfiltered ("\
191 Text Range Data Range Syms Shared Object Library\n");
193 for (; vp
!= NULL
; vp
= vp
->nxt
)
195 printf_unfiltered ("0x%08x-0x%08x 0x%08x-0x%08x %s %s%s%s%s\n",
196 vp
->tstart
, vp
->tend
,
197 vp
->dstart
, vp
->dend
,
198 vp
->loaded
? "Yes" : "No ",
199 *vp
->member
? "(" : "",
201 *vp
->member
? ") " : "",
207 sharedlibrary_command (args
, from_tty
)
213 /* Check for new shared libraries loaded with load (). */
214 if (xcoff_relocate_symtab_hook
!= NULL
)
215 (*xcoff_relocate_symtab_hook
) (inferior_pid
);
217 #ifdef SOLIB_SYMBOLS_MANUAL
218 solib_add (args
, from_tty
, (struct target_ops
*) 0);
219 #endif /* SOLIB_SYMBOLS_MANUAL */
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");