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 SVR4_SHARED_LIBS
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 /* !SVR4_SHARED_LIBS */
72 lmo
.link_map_size
= sizeof (struct link_map
);
74 lmo
.l_addr_offset
= offsetof (struct link_map
, lm_addr
);
75 lmo
.l_addr_size
= fieldsize (struct link_map
, lm_addr
);
77 lmo
.l_next_offset
= offsetof (struct link_map
, lm_next
);
78 lmo
.l_next_size
= fieldsize (struct link_map
, lm_next
);
80 lmo
.l_name_offset
= offsetof (struct link_map
, lm_name
);
81 lmo
.l_name_size
= fieldsize (struct link_map
, lm_name
);
82 #endif /* SVR4_SHARED_LIBS */
85 #if defined (HAVE_STRUCT_LINK_MAP32)
90 lmo32
.r_debug_size
= sizeof (struct r_debug32
);
92 lmo32
.r_map_offset
= offsetof (struct r_debug32
, r_map
);
93 lmo32
.r_map_size
= fieldsize (struct r_debug32
, r_map
);
95 lmo32
.link_map_size
= sizeof (struct link_map32
);
97 lmo32
.l_addr_offset
= offsetof (struct link_map32
, l_addr
);
98 lmo32
.l_addr_size
= fieldsize (struct link_map32
, l_addr
);
100 lmo32
.l_next_offset
= offsetof (struct link_map32
, l_next
);
101 lmo32
.l_next_size
= fieldsize (struct link_map32
, l_next
);
103 lmo32
.l_prev_offset
= offsetof (struct link_map32
, l_prev
);
104 lmo32
.l_prev_size
= fieldsize (struct link_map32
, l_prev
);
106 lmo32
.l_name_offset
= offsetof (struct link_map32
, l_name
);
107 lmo32
.l_name_size
= fieldsize (struct link_map32
, l_name
);
109 #endif /* defined (HAVE_STRUCT_LINK_MAP32) */
111 #if defined (HAVE_STRUCT_LINK_MAP32)
112 if (bfd_get_arch_size (exec_bfd
) == 32)
119 #endif /* HAVE_LINK_H */
122 _initialize_svr4_lm (void)
125 legacy_svr4_fetch_link_map_offsets_hook
= legacy_svr4_fetch_link_map_offsets
;
126 #endif /* HAVE_LINK_H */