1 /* Macro definitions for i386 running under NetBSD.
2 Copyright 1994, 1996, 2000 Free Software Foundation, Inc.
4 This file is part of GDB.
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 59 Temple Place - Suite 330,
19 Boston, MA 02111-1307, USA. */
24 #define HAVE_I387_REGS
26 #include "i386/tm-i386.h"
27 #include "config/tm-nbsd.h"
29 extern use_struct_convention_fn i386nbsd_use_struct_convention;
30 #define USE_STRUCT_CONVENTION(gcc_p, type) \
31 i386nbsd_use_struct_convention(gcc_p, type)
34 #define JB_ELEMENT_SIZE sizeof(int) /* jmp_buf[_JBLEN] is array of ints */
35 #define JB_PC 0 /* Setjmp()'s return PC saved here */
37 /* Figure out where the longjmp will land. Slurp the args out of the stack.
38 We expect the first arg to be a pointer to the jmp_buf structure from which
39 we extract the pc (JB_PC) that we will land at. The pc is copied into ADDR.
40 This routine returns true on success */
42 extern int get_longjmp_target (CORE_ADDR *);
44 #define GET_LONGJMP_TARGET(ADDR) get_longjmp_target(ADDR)
47 /* Support for signal handlers. */
49 /* The sigtramp is above the user stack and immediately below the
50 user area. Using constants here allows for cross debugging. */
52 #define SIGTRAMP_START(pc) 0xbfbfdf20
53 #define SIGTRAMP_END(pc) 0xbfbfdff0
55 /* Offset to saved PC in sigcontext, from <sys/signal.h>. */
56 #define SIGCONTEXT_PC_OFFSET 20
58 #endif /* TM_NBSD_H */