-/* 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 Free Software Foundation, Inc.
This file is part of GDB.
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. */
+ Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA. */
#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)
/* 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);
+
+ set_gdbarch_deprecated_use_struct_convention
+ (gdbarch, alphafbsd_use_struct_convention);
+
+ tdep->dynamic_sigtramp_offset = alphafbsd_sigtramp_offset;
+ tdep->sigcontext_addr = alphafbsd_sigcontext_addr;
+ tdep->pc_in_sigtramp = alphafbsd_pc_in_sigtramp;
+ 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)
{
- alpha_gdbarch_register_os_abi (ALPHA_ABI_FREEBSD, alphafbsd_init_abi);
+ gdbarch_register_osabi (bfd_arch_alpha, 0, GDB_OSABI_FREEBSD_ELF,
+ alphafbsd_init_abi);
}