1 /* Handle shared libraries for GDB, the GNU Debugger.
3 Copyright (C) 2000, 2004, 2006, 2007, 2008 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 3 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, see <http://www.gnu.org/licenses/>. */
26 extern struct target_so_ops svr4_so_ops;
28 /* Critical offsets and sizes which describe struct r_debug and
29 struct link_map on SVR4-like targets. All offsets and sizes are
30 in bytes unless otherwise specified. */
32 struct link_map_offsets
34 /* Offset and size of r_debug.r_version. */
35 int r_version_offset, r_version_size;
37 /* Offset of r_debug.r_map. */
40 /* Offset of r_debug.r_ldsomap. */
43 /* Size of struct link_map (or equivalent), or at least enough of it
44 to be able to obtain the fields below. */
47 /* Offset to l_addr field in struct link_map. */
50 /* Offset to l_ld field in struct link_map. */
53 /* Offset to l_next field in struct link_map. */
56 /* Offset to l_prev field in struct link_map. */
59 /* Offset to l_name field in struct link_map. */
63 /* set_solib_svr4_fetch_link_map_offsets() is intended to be called by
64 a <arch>_gdbarch_init() function. It is used to establish an
65 architecture specific link_map_offsets fetcher for the architecture
68 extern void set_solib_svr4_fetch_link_map_offsets
69 (struct gdbarch *gdbarch, struct link_map_offsets *(*func) (void));
71 /* This function is called by thread_db.c. Return the address of the
72 link map for the given objfile. */
73 extern CORE_ADDR svr4_fetch_objfile_link_map (struct objfile *objfile);
75 /* Fetch (and possibly build) an appropriate `struct link_map_offsets'
76 for ILP32 and LP64 SVR4 systems. */
77 extern struct link_map_offsets *svr4_ilp32_fetch_link_map_offsets (void);
78 extern struct link_map_offsets *svr4_lp64_fetch_link_map_offsets (void);
80 /* Return 1 if PC lies in the dynamic symbol resolution code of the
81 SVR4 run time loader. */
82 int svr4_in_dynsym_resolve_code (CORE_ADDR pc);
84 #endif /* solib-svr4.h */