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/* Target-dependent definitions for FreeBSD/i386.
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Copyright 1997, 1999, 2000 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,
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Boston, MA 02111-1307, USA. */
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#ifndef TM_FBSD_H
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#define TM_FBSD_H
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#define HAVE_I387_REGS
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#include "i386/tm-i386.h"
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/* FreeBSD uses the old gcc convention for struct returns. */
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#define USE_STRUCT_CONVENTION(gcc_p, type) \
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generic_use_struct_convention (1, type)
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/* Support for longjmp. */
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/* Details about jmp_buf. It's supposed to be an array of integers. */
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#define JB_ELEMENT_SIZE 4 /* Size of elements in jmp_buf. */
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#define JB_PC 0 /* Array index of saved PC. */
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/* Figure out where the longjmp will land. Store the address that
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longjmp will jump to in *ADDR, and return non-zero if successful. */
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extern int get_longjmp_target (CORE_ADDR *addr);
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#define GET_LONGJMP_TARGET(addr) get_longjmp_target (addr)
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/* Support for signal handlers. */
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/* The 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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These are tested for FreeBSD 3.4. */
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#define SIGTRAMP_START(pc) 0xbfbfdf20
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#define SIGTRAMP_END(pc) 0xbfbfdff0
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/* Offset to saved PC in sigcontext, from <sys/signal.h>. */
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#define SIGCONTEXT_PC_OFFSET 20
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/* Shared library support. */
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#ifndef SVR4_SHARED_LIBS
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/* Return non-zero if we are in a shared library trampoline code stub. */
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#define IN_SOLIB_CALL_TRAMPOLINE(pc, name) \
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(name && !strcmp(name, "_DYNAMIC"))
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#endif /* !SVR4_SHARED_LIBS */
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#endif /* TM_FBSD_H */
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