1 /* Provide legacy r_debug and link_map support for SVR4-like native targets.
3 Free Software Foundation, Inc.
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. */
22 #define _SYSCALL32 /* for Sparc64 cross Sparc32 */
25 #include "solib-svr4.h"
30 /* Fetch (and possibly build) an appropriate link_map_offsets structure
31 for native targets using struct definitions from link.h. */
33 static struct link_map_offsets
*
34 legacy_svr4_fetch_link_map_offsets (void)
36 static struct link_map_offsets lmo
;
37 static struct link_map_offsets
*lmp
= 0;
38 #if defined (HAVE_STRUCT_LINK_MAP32)
39 static struct link_map_offsets lmo32
;
40 static struct link_map_offsets
*lmp32
= 0;
44 #define offsetof(TYPE, MEMBER) ((unsigned long) &((TYPE *)0)->MEMBER)
46 #define fieldsize(TYPE, MEMBER) (sizeof (((TYPE *)0)->MEMBER))
52 #ifdef HAVE_STRUCT_LINK_MAP_WITH_L_MEMBERS
53 lmo
.r_debug_size
= sizeof (struct r_debug
);
55 lmo
.r_map_offset
= offsetof (struct r_debug
, r_map
);
56 lmo
.r_map_size
= fieldsize (struct r_debug
, r_map
);
58 lmo
.link_map_size
= sizeof (struct link_map
);
60 lmo
.l_addr_offset
= offsetof (struct link_map
, l_addr
);
61 lmo
.l_addr_size
= fieldsize (struct link_map
, l_addr
);
63 lmo
.l_next_offset
= offsetof (struct link_map
, l_next
);
64 lmo
.l_next_size
= fieldsize (struct link_map
, l_next
);
66 lmo
.l_prev_offset
= offsetof (struct link_map
, l_prev
);
67 lmo
.l_prev_size
= fieldsize (struct link_map
, l_prev
);
69 lmo
.l_name_offset
= offsetof (struct link_map
, l_name
);
70 lmo
.l_name_size
= fieldsize (struct link_map
, l_name
);
71 #else /* !defined(HAVE_STRUCT_LINK_MAP_WITH_L_MEMBERS) */
72 #ifdef HAVE_STRUCT_LINK_MAP_WITH_LM_MEMBERS
73 lmo
.link_map_size
= sizeof (struct link_map
);
75 lmo
.l_addr_offset
= offsetof (struct link_map
, lm_addr
);
76 lmo
.l_addr_size
= fieldsize (struct link_map
, lm_addr
);
78 lmo
.l_next_offset
= offsetof (struct link_map
, lm_next
);
79 lmo
.l_next_size
= fieldsize (struct link_map
, lm_next
);
81 lmo
.l_name_offset
= offsetof (struct link_map
, lm_name
);
82 lmo
.l_name_size
= fieldsize (struct link_map
, lm_name
);
83 #else /* !defined(HAVE_STRUCT_LINK_MAP_WITH_LM_MEMBERS) */
84 #if HAVE_STRUCT_SO_MAP_WITH_SOM_MEMBERS
85 lmo
.link_map_size
= sizeof (struct so_map
);
87 lmo
.l_addr_offset
= offsetof (struct so_map
, som_addr
);
88 lmo
.l_addr_size
= fieldsize (struct so_map
, som_addr
);
90 lmo
.l_next_offset
= offsetof (struct so_map
, som_next
);
91 lmo
.l_next_size
= fieldsize (struct so_map
, som_next
);
93 lmo
.l_name_offset
= offsetof (struct so_map
, som_path
);
94 lmo
.l_name_size
= fieldsize (struct so_map
, som_path
);
95 #endif /* HAVE_STRUCT_SO_MAP_WITH_SOM_MEMBERS */
96 #endif /* HAVE_STRUCT_LINK_MAP_WITH_LM_MEMBERS */
97 #endif /* HAVE_STRUCT_LINK_MAP_WITH_L_MEMBERS */
100 #if defined (HAVE_STRUCT_LINK_MAP32)
105 lmo32
.r_debug_size
= sizeof (struct r_debug32
);
107 lmo32
.r_map_offset
= offsetof (struct r_debug32
, r_map
);
108 lmo32
.r_map_size
= fieldsize (struct r_debug32
, r_map
);
110 lmo32
.link_map_size
= sizeof (struct link_map32
);
112 lmo32
.l_addr_offset
= offsetof (struct link_map32
, l_addr
);
113 lmo32
.l_addr_size
= fieldsize (struct link_map32
, l_addr
);
115 lmo32
.l_next_offset
= offsetof (struct link_map32
, l_next
);
116 lmo32
.l_next_size
= fieldsize (struct link_map32
, l_next
);
118 lmo32
.l_prev_offset
= offsetof (struct link_map32
, l_prev
);
119 lmo32
.l_prev_size
= fieldsize (struct link_map32
, l_prev
);
121 lmo32
.l_name_offset
= offsetof (struct link_map32
, l_name
);
122 lmo32
.l_name_size
= fieldsize (struct link_map32
, l_name
);
124 #endif /* defined (HAVE_STRUCT_LINK_MAP32) */
126 #if defined (HAVE_STRUCT_LINK_MAP32)
127 if (bfd_get_arch_size (exec_bfd
) == 32)
134 #endif /* HAVE_LINK_H */
137 _initialize_svr4_lm (void)
140 legacy_svr4_fetch_link_map_offsets_hook
= legacy_svr4_fetch_link_map_offsets
;
141 #endif /* HAVE_LINK_H */