1 /* Macro definitions for GDB on all SVR4 target systems.
2 Copyright 1991, 1992, 1993, 1994 Free Software Foundation, Inc.
3 Written by Fred Fish at Cygnus Support (fnf@cygnus.com).
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 /* For SVR4 shared libraries, each call to a library routine goes through
23 a small piece of trampoline code in the ".plt" section.
24 The horribly ugly wait_for_inferior() routine uses this macro to detect
25 when we have stepped into one of these fragments.
26 We do not use lookup_solib_trampoline_symbol_by_pc, because
27 we cannot always find the shared library trampoline symbols
30 #define IN_SOLIB_CALL_TRAMPOLINE(pc, name) in_plt_section((pc), (name))
31 extern int in_plt_section (CORE_ADDR
, char *);
33 /* If PC is in a shared library trampoline code, return the PC
34 where the function itself actually starts. If not, return 0. */
36 #define SKIP_TRAMPOLINE_CODE(pc) find_solib_trampoline_target (pc)
38 /* It is unknown which, if any, SVR4 assemblers do not accept dollar signs
39 in identifiers. The default in G++ is to use dots instead, for all SVR4
40 systems, so we make that our default also. FIXME: There should be some
41 way to get G++ to tell us what CPLUS_MARKER it is using, perhaps by
42 stashing it in the debugging information as part of the name of an
43 invented symbol ("gcc_cplus_marker$" for example). */
46 #define CPLUS_MARKER '.'
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