| /* Handle shared libraries for GDB, the GNU Debugger. |
| Copyright 2000 |
| Free Software Foundation, Inc. |
| |
| This file is part of GDB. |
| |
| This program is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 2 of the License, or |
| (at your option) any later version. |
| |
| This program is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| 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. */ |
| |
| struct objfile; |
| |
| /* Critical offsets and sizes which describe struct r_debug and |
| struct link_map on SVR4-like targets. All offsets and sizes are |
| in bytes unless otherwise specified. */ |
| |
| 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 to the r_map field in struct r_debug. */ |
| int r_map_offset; |
| |
| /* Size of the r_map field in struct r_debug. */ |
| int r_map_size; |
| |
| /* Size of struct link_map (or equivalent), or at least enough of it |
| to be able to obtain the fields below. */ |
| int link_map_size; |
| |
| /* Offset to l_addr field in struct link_map. */ |
| int l_addr_offset; |
| |
| /* Size of l_addr field in struct link_map. */ |
| int l_addr_size; |
| |
| /* Offset to l_next field in struct link_map. */ |
| int l_next_offset; |
| |
| /* Size of l_next field in struct link_map. */ |
| int l_next_size; |
| |
| /* Offset to l_prev field in struct link_map. */ |
| int l_prev_offset; |
| |
| /* Size of l_prev field in struct link_map. */ |
| int l_prev_size; |
| |
| /* Offset to l_name field in struct link_map. */ |
| int l_name_offset; |
| |
| /* Size of l_name field in struct link_map. */ |
| int l_name_size; |
| }; |
| |
| /* 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); |