1 /* Target-dependent code for OSF/1 on Alpha.
2 Copyright (C) 2002, 2003, 2007, 2008, 2009, 2010
3 Free Software Foundation, Inc.
5 This file is part of GDB.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>. */
25 #include "gdb_string.h"
28 #include "alpha-tdep.h"
31 alpha_osf1_pc_in_sigtramp (struct gdbarch
*gdbarch
,
32 CORE_ADDR pc
, char *func_name
)
34 return (func_name
!= NULL
&& strcmp ("__sigtramp", func_name
) == 0);
38 alpha_osf1_sigcontext_addr (struct frame_info
*this_frame
)
40 struct gdbarch
*gdbarch
= get_frame_arch (this_frame
);
41 enum bfd_endian byte_order
= gdbarch_byte_order (gdbarch
);
42 struct frame_info
*next_frame
= get_next_frame (this_frame
);
43 struct frame_id next_id
= null_frame_id
;
45 if (next_frame
!= NULL
)
46 next_id
= get_frame_id (next_frame
);
48 return (read_memory_integer (next_id
.stack_addr
, 8, byte_order
));
52 alpha_osf1_init_abi (struct gdbarch_info info
,
53 struct gdbarch
*gdbarch
)
55 struct gdbarch_tdep
*tdep
= gdbarch_tdep (gdbarch
);
57 /* Hook into the MDEBUG frame unwinder. */
58 alpha_mdebug_init_abi (info
, gdbarch
);
60 /* The next/step support via procfs on OSF1 is broken when running
61 on multi-processor machines. We need to use software single stepping
63 set_gdbarch_software_single_step (gdbarch
, alpha_software_single_step
);
65 tdep
->sigcontext_addr
= alpha_osf1_sigcontext_addr
;
66 tdep
->pc_in_sigtramp
= alpha_osf1_pc_in_sigtramp
;
69 tdep
->jb_elt_size
= 8;
72 /* Provide a prototype to silence -Wmissing-prototypes. */
73 extern initialize_file_ftype _initialize_alpha_osf1_tdep
;
76 _initialize_alpha_osf1_tdep (void)
78 gdbarch_register_osabi (bfd_arch_alpha
, 0, GDB_OSABI_OSF1
,