[thirdparty/binutils-gdb.git] / gdb / config / tm-sysv4.h

/* Macro definitions for GDB on all SVR4 target systems.
   Copyright 1991, 1992, 1993, 1994 Free Software Foundation, Inc.
   Written by Fred Fish at Cygnus Support (fnf@cygnus.com).

   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.  */

/* For SVR4 shared libraries, each call to a library routine goes through
   a small piece of trampoline code in the ".plt" section.
   The horribly ugly wait_for_inferior() routine uses this macro to detect
   when we have stepped into one of these fragments.
   We do not use lookup_solib_trampoline_symbol_by_pc, because
   we cannot always find the shared library trampoline symbols
   (e.g. on Irix5).  */

#define IN_SOLIB_CALL_TRAMPOLINE(pc, name) in_plt_section((pc), (name))
extern int in_plt_section PARAMS ((CORE_ADDR, char *));

/* If PC is in a shared library trampoline code, return the PC
   where the function itself actually starts.  If not, return 0.  */

#define SKIP_TRAMPOLINE_CODE(pc)  find_solib_trampoline_target (pc)

/* It is unknown which, if any, SVR4 assemblers do not accept dollar signs
   in identifiers.  The default in G++ is to use dots instead, for all SVR4
   systems, so we make that our default also.  FIXME: There should be some
   way to get G++ to tell us what CPLUS_MARKER it is using, perhaps by
   stashing it in the debugging information as part of the name of an
   invented symbol ("gcc_cplus_marker$" for example). */

#undef CPLUS_MARKER
#define CPLUS_MARKER '.'
Commit	Line	Data
c906108c SS	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).
	4
c5aa993b	5	This file is part of GDB.
c906108c	6
c5aa993b JM	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.
c906108c	11
c5aa993b JM	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.
c906108c	16
c5aa993b JM	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. */
c906108c SS	21
	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
	28	(e.g. on Irix5). */
	29
	30	#define IN_SOLIB_CALL_TRAMPOLINE(pc, name) in_plt_section((pc), (name))
	31	extern int in_plt_section PARAMS ((CORE_ADDR, char *));
	32
	33	/* If PC is in a shared library trampoline code, return the PC
	34	where the function itself actually starts. If not, return 0. */
	35
	36	#define SKIP_TRAMPOLINE_CODE(pc) find_solib_trampoline_target (pc)
	37
	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). */
	44
	45	#undef CPLUS_MARKER
	46	#define CPLUS_MARKER '.'