1 /* Macro definitions for GDB on all SVR4 target systems. 2 Copyright 1991, 1992, 1993, 1994, 1996, 1997, 2000 3 Free Software Foundation, Inc. 4 Written by Fred Fish at Cygnus Support (fnf@cygnus.com). 5 6 This file is part of GDB. 7 8 This program is free software; you can redistribute it and/or modify 9 it under the terms of the GNU General Public License as published by 10 the Free Software Foundation; either version 2 of the License, or 11 (at your option) any later version. 12 13 This program is distributed in the hope that it will be useful, 14 but WITHOUT ANY WARRANTY; without even the implied warranty of 15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 GNU General Public License for more details. 17 18 You should have received a copy of the GNU General Public License 19 along with this program; if not, write to the Free Software 20 Foundation, Inc., 59 Temple Place - Suite 330, 21 Boston, MA 02111-1307, USA. */ 22 23 /* For SVR4 shared libraries, each call to a library routine goes through 24 a small piece of trampoline code in the ".plt" section. 25 The horribly ugly wait_for_inferior() routine uses this macro to detect 26 when we have stepped into one of these fragments. 27 We do not use lookup_solib_trampoline_symbol_by_pc, because 28 we cannot always find the shared library trampoline symbols 29 (e.g. on Irix5). */ 30 31 #define IN_SOLIB_CALL_TRAMPOLINE(pc, name) in_plt_section((pc), (name)) 32 extern int in_plt_section (CORE_ADDR, char *); 33 34 /* If PC is in a shared library trampoline code, return the PC 35 where the function itself actually starts. If not, return 0. */ 36 37 #define SKIP_TRAMPOLINE_CODE(pc) find_solib_trampoline_target (pc) 38