freebsd-dev/gnu/usr.bin/binutils/gdb/i386/tm.h

71 lines
2.3 KiB
C

/* Macro definitions for x86 running under FreeBSD Unix.
Copyright 1996 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. */
#ifndef TM_FBSD_H
#define TM_FBSD_H 1
#include "i386/tm-i386bsd.h"
#undef NUM_REGS
#define NUM_REGS 16
extern struct frame_info *setup_arbitrary_frame PARAMS ((int, CORE_ADDR *));
#define SETUP_ARBITRARY_FRAME(argc, argv) setup_arbitrary_frame (argc, argv)
extern void i386_float_info PARAMS ((void));
#define FLOAT_INFO i386_float_info ()
#define IN_SOLIB_CALL_TRAMPOLINE(pc, name) STREQ (name, "_DYNAMIC")
/* FRAME_CHAIN takes a frame's nominal address and produces the frame's
chain-pointer.
In the case of the i386, the frame's nominal address
is the address of a 4-byte word containing the calling frame's address. */
extern CORE_ADDR fbsd_kern_frame_chain (struct frame_info *);
#undef FRAME_CHAIN
#define FRAME_CHAIN(thisframe) \
(kernel_debugging ? fbsd_kern_frame_chain(thisframe) : \
((thisframe)->signal_handler_caller \
? (thisframe)->frame \
: (!inside_entry_file ((thisframe)->pc) \
? read_memory_integer ((thisframe)->frame, 4) \
: 0)))
/* Saved Pc. Get it from sigcontext if within sigtramp. */
extern CORE_ADDR fbsd_kern_frame_saved_pc (struct frame_info *);
#undef FRAME_SAVED_PC
#define FRAME_SAVED_PC(FRAME) \
(kernel_debugging ? fbsd_kern_frame_saved_pc(FRAME) : \
(((FRAME)->signal_handler_caller \
? sigtramp_saved_pc (FRAME) \
: read_memory_integer ((FRAME)->frame + 4, 4)) \
))
/* Sigtramp is not the same address as BSD/OS.. */
#undef SIGTRAMP_START
#undef SIGTRAMP_END
#define SIGTRAMP_START 0xefbfdfc0
#define SIGTRAMP_END 0xefbfe000
#endif /* TM_FBSD_H */