-/* Target-dependent code for FreeBSD/Alpha.
- Copyright 2001, 2002 Free Software Foundation, Inc.
+/* Target-dependent code for FreeBSD/alpha.
+
+ Copyright (C) 2001, 2002, 2003, 2006, 2007, 2008
+ 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
+ the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
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. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
#include "value.h"
+#include "osabi.h"
#include "alpha-tdep.h"
+#include "solib-svr4.h"
static int
-alphafbsd_use_struct_convention (int gcc_p, struct type *type)
+alphafbsd_return_in_memory (struct type *type)
{
enum type_code code;
int i;
/* All aggregate types that won't fit in a register must be returned
in memory. */
- if (TYPE_LENGTH (type) > REGISTER_SIZE)
+ if (TYPE_LENGTH (type) > ALPHA_REGISTER_SIZE)
return 1;
/* The only aggregate types that can be returned in a register are
return 0;
}
+\f
+
+/* Support for signal handlers. */
+
+/* Return whether PC is in a BSD sigtramp routine. */
+
+CORE_ADDR alphafbsd_sigtramp_start = 0x11ffff68;
+CORE_ADDR alphafbsd_sigtramp_end = 0x11ffffe0;
static int
alphafbsd_pc_in_sigtramp (CORE_ADDR pc, char *func_name)
{
- /* FIXME */
- return 0;
+ return (pc >= alphafbsd_sigtramp_start && pc < alphafbsd_sigtramp_end);
+}
+
+static LONGEST
+alphafbsd_sigtramp_offset (CORE_ADDR pc)
+{
+ return pc - alphafbsd_sigtramp_start;
}
+/* Assuming NEXT_FRAME is for a frame following a BSD sigtramp
+ routine, return the address of the associated sigcontext structure. */
+
+static CORE_ADDR
+alphafbsd_sigcontext_addr (struct frame_info *next_frame)
+{
+ return frame_unwind_register_unsigned (next_frame, ALPHA_SP_REGNUM) + 24;
+}
+
+/* FreeBSD 5.0-RELEASE or later. */
+
static void
alphafbsd_init_abi (struct gdbarch_info info,
struct gdbarch *gdbarch)
{
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
- set_gdbarch_pc_in_sigtramp (gdbarch, alphafbsd_pc_in_sigtramp);
+ /* Hook into the DWARF CFI frame unwinder. */
+ alpha_dwarf2_init_abi (info, gdbarch);
+
+ /* Hook into the MDEBUG frame unwinder. */
+ alpha_mdebug_init_abi (info, gdbarch);
- set_gdbarch_use_struct_convention (gdbarch, alphafbsd_use_struct_convention);
+ /* FreeBSD/alpha has SVR4-style shared libraries. */
+ set_solib_svr4_fetch_link_map_offsets
+ (gdbarch, svr4_lp64_fetch_link_map_offsets);
+
+ tdep->dynamic_sigtramp_offset = alphafbsd_sigtramp_offset;
+ tdep->sigcontext_addr = alphafbsd_sigcontext_addr;
+ tdep->pc_in_sigtramp = alphafbsd_pc_in_sigtramp;
+ tdep->return_in_memory = alphafbsd_return_in_memory;
+ tdep->sc_pc_offset = 288;
+ tdep->sc_regs_offset = 24;
+ tdep->sc_fpregs_offset = 320;
tdep->jb_pc = 2;
tdep->jb_elt_size = 8;
}
+\f
+
+/* Provide a prototype to silence -Wmissing-prototypes. */
+void _initialize_alphafbsd_tdep (void);
void
_initialize_alphafbsd_tdep (void)