/* Handle shared libraries for GDB, the GNU Debugger.
- Copyright 2000
- Free Software Foundation, Inc.
+
+ Copyright (C) 2000, 2004, 2006, 2007 Free Software Foundation, Inc.
This file is part of GDB.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
+ Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA. */
+
+#ifndef SOLIB_SVR4_H
+#define SOLIB_SVR4_H
+
+struct objfile;
/* Critical offsets and sizes which describe struct r_debug and
struct link_map on SVR4-like targets. All offsets and sizes are
struct link_map_offsets
{
- /* Size of struct r_debug (or equivalent), or at least enough of it to
- be able to obtain the r_map field. */
- int r_debug_size;
+ /* Offset and size of r_debug.r_version. */
+ int r_version_offset, r_version_size;
- /* Offset to the r_map field in struct r_debug. */
+ /* Offset of r_debug.r_map. */
int r_map_offset;
- /* Size of the r_map field in struct r_debug. */
- int r_map_size;
+ /* Offset of r_debug.r_ldsomap. */
+ int r_ldsomap_offset;
/* Size of struct link_map (or equivalent), or at least enough of it
to be able to obtain the fields below. */
/* Size of l_addr field in struct link_map. */
int l_addr_size;
+ /* Offset to l_ld field in struct link_map. */
+ int l_ld_offset;
+
+ /* Size of l_ld field in struct link_map. */
+ int l_ld_size;
+
/* Offset to l_next field in struct link_map. */
int l_next_offset;
int l_name_size;
};
-#ifndef SVR4_FETCH_LINK_MAP_OFFSETS
-extern struct link_map_offsets *default_svr4_fetch_link_map_offsets (void);
-#define SVR4_FETCH_LINK_MAP_OFFSETS() default_svr4_fetch_link_map_offsets ()
-#endif
+/* set_solib_svr4_fetch_link_map_offsets() is intended to be called by
+ a <arch>_gdbarch_init() function. It is used to establish an
+ architecture specific link_map_offsets fetcher for the architecture
+ being defined. */
+
+extern void set_solib_svr4_fetch_link_map_offsets
+ (struct gdbarch *gdbarch, struct link_map_offsets *(*func) (void));
+
+/* This function is called by thread_db.c. Return the address of the
+ link map for the given objfile. */
+extern CORE_ADDR svr4_fetch_objfile_link_map (struct objfile *objfile);
+
+/* legacy_svr4_fetch_link_map_offsets_hook is a pointer to a function
+ which is used to fetch link map offsets. It will only be set
+ by solib-legacy.c, if at all. */
+extern struct link_map_offsets *(*legacy_svr4_fetch_link_map_offsets_hook) (void);
+
+/* Fetch (and possibly build) an appropriate `struct link_map_offsets'
+ for ILP32 and LP64 SVR4 systems. */
+extern struct link_map_offsets *svr4_ilp32_fetch_link_map_offsets (void);
+extern struct link_map_offsets *svr4_lp64_fetch_link_map_offsets (void);
+
+#endif /* solib-svr4.h */