| /* 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 */ |