74 lines
2.4 KiB
C
74 lines
2.4 KiB
C
/* Macro definitions for x86 running under FreeBSD Unix.
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Copyright 1996 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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#ifndef TM_FBSD_H
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#define TM_FBSD_H 1
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#include "i386/tm-i386bsd.h"
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#undef NUM_REGS
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#define NUM_REGS 16
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extern struct frame_info *setup_arbitrary_frame PARAMS ((int, CORE_ADDR *));
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#define SETUP_ARBITRARY_FRAME(argc, argv) setup_arbitrary_frame (argc, argv)
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extern void i386_float_info PARAMS ((void));
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#define FLOAT_INFO i386_float_info ()
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#define IN_SOLIB_CALL_TRAMPOLINE(pc, name) STREQ (name, "_DYNAMIC")
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/* FRAME_CHAIN takes a frame's nominal address and produces the frame's
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chain-pointer.
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In the case of the i386, the frame's nominal address
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is the address of a 4-byte word containing the calling frame's address. */
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extern CORE_ADDR fbsd_kern_frame_chain (struct frame_info *);
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#undef FRAME_CHAIN
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#define FRAME_CHAIN(thisframe) \
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(kernel_debugging ? fbsd_kern_frame_chain(thisframe) : \
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((thisframe)->signal_handler_caller \
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? (thisframe)->frame \
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: (!inside_entry_file ((thisframe)->pc) \
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? read_memory_integer ((thisframe)->frame, 4) \
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: 0)))
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/* Saved Pc. Get it from sigcontext if within sigtramp. */
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extern CORE_ADDR fbsd_kern_frame_saved_pc (struct frame_info *);
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#undef FRAME_SAVED_PC
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#define FRAME_SAVED_PC(FRAME) \
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(kernel_debugging ? fbsd_kern_frame_saved_pc(FRAME) : \
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(((FRAME)->signal_handler_caller \
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? sigtramp_saved_pc (FRAME) \
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: read_memory_integer ((FRAME)->frame + 4, 4)) \
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))
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/* On FreeBSD, sigtramp has size 0x18 and is immediately below the
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ps_strings struct which has size 0x10 and is at the top of the
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user stack. */
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#undef SIGTRAMP_START
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#undef SIGTRAMP_END
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#define SIGTRAMP_START 0xefbfdfd8
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#define SIGTRAMP_END 0xefbfdff0
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#endif /* ifndef TM_FBSD_H */
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