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/* Target-dependent definitions for FreeBSD/i386.
Copyright (C) 1997, 2000 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
#define HAVE_I387_REGS
#include "i386/tm-i386.h"
/* FreeBSD uses the old gcc convention for struct returns. */
#define USE_STRUCT_CONVENTION(gcc_p, type) \
generic_use_struct_convention (1, type)
/* Support for longjmp. */
/* Details about jmp_buf. It's supposed to be an array of integers. */
#define JB_ELEMENT_SIZE 4 /* Size of elements in jmp_buf. */
#define JB_PC 0 /* Array index of saved PC. */
/* Figure out where the longjmp will land. Store the address that
longjmp will jump to in *ADDR, and return non-zero if successful. */
extern int get_longjmp_target (CORE_ADDR *addr);
#define GET_LONGJMP_TARGET(addr) get_longjmp_target (addr)
/* Support for signal handlers. */
/* The sigtramp is above the user stack and immediately below
the user area. Using constants here allows for cross debugging.
These are tested for FreeBSD 3.4. */
#define SIGTRAMP_START(pc) 0xbfbfdf20
#define SIGTRAMP_END(pc) 0xbfbfdff0
/* Offset to saved PC in sigcontext, from <sys/signal.h>. */
#define SIGCONTEXT_PC_OFFSET 20
/* Shared library support. */
#ifndef SVR4_SHARED_LIBS
/* Return non-zero if we are in a shared library trampoline code stub. */
#define IN_SOLIB_CALL_TRAMPOLINE(pc, name) \
(name && !strcmp(name, "_DYNAMIC"))
#endif /* !SVR4_SHARED_LIBS */
#endif /* TM_FBSD_H */
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