1997-09-24 20:57:14 +04:00
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/* Macro definitions for i386 running under NetBSD.
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Copyright 1994 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_NBSD_H
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#define TM_NBSD_H
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1997-09-26 09:14:07 +04:00
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#include "i386/tm-i386.h"
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1997-09-24 20:57:14 +04:00
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#include "tm-nbsd.h"
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1997-09-26 09:14:07 +04:00
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/* NetBSD supports only the first 16 regs. */
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1997-09-24 20:57:14 +04:00
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#undef NUM_REGS
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#define NUM_REGS 16
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1997-09-26 09:14:07 +04:00
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/* On NetBSD, sigtramp is above the user stack and immediately below
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the user area. Using constants here allows for cross debugging. */
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1999-02-11 01:17:38 +03:00
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#define SIGTRAMP_END(pc) 0xefbfe000 /* USRSTACK */
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#define SIGTRAMP_START(pc) (SIGTRAMP_END(pc) - 64)
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1997-09-26 09:14:07 +04:00
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/* Saved Pc. Get it from sigcontext if within sigtramp. */
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/* Offset to saved PC in sigcontext, from <sys/signal.h>. */
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#define SIGCONTEXT_PC_OFFSET 44
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1997-09-24 20:57:14 +04:00
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#define JB_ELEMENT_SIZE sizeof(int) /* jmp_buf[_JBLEN] is array of ints */
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#define JB_PC 0 /* Setjmp()'s return PC saved here */
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/* Figure out where the longjmp will land. Slurp the args out of the stack.
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We expect the first arg to be a pointer to the jmp_buf structure from which
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we extract the pc (JB_PC) that we will land at. The pc is copied into ADDR.
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This routine returns true on success */
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extern int
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get_longjmp_target PARAMS ((CORE_ADDR *));
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#define GET_LONGJMP_TARGET(ADDR) get_longjmp_target(ADDR)
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#endif /* TM_NBSD_H */
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