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1 : /* x86-64 ABI-specified defaults for DWARF CFI.
2 : Copyright (C) 2009 Red Hat, Inc.
3 : This file is part of elfutils.
4 :
5 : This file is free software; you can redistribute it and/or modify
6 : it under the terms of either
7 :
8 : * the GNU Lesser General Public License as published by the Free
9 : Software Foundation; either version 3 of the License, or (at
10 : your option) any later version
11 :
12 : or
13 :
14 : * the GNU General Public License as published by the Free
15 : Software Foundation; either version 2 of the License, or (at
16 : your option) any later version
17 :
18 : or both in parallel, as here.
19 :
20 : elfutils is distributed in the hope that it will be useful, but
21 : WITHOUT ANY WARRANTY; without even the implied warranty of
22 : MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
23 : General Public License for more details.
24 :
25 : You should have received copies of the GNU General Public License and
26 : the GNU Lesser General Public License along with this program. If
27 : not, see <http://www.gnu.org/licenses/>. */
28 :
29 : #ifdef HAVE_CONFIG_H
30 : # include <config.h>
31 : #endif
32 :
33 : #include <dwarf.h>
34 :
35 : #define BACKEND x86_64_
36 : #include "libebl_CPU.h"
37 :
38 : int
39 86 : x86_64_abi_cfi (Ebl *ebl __attribute__ ((unused)), Dwarf_CIE *abi_info)
40 : {
41 86 : static const uint8_t abi_cfi[] =
42 : {
43 : /* Call-saved regs. */
44 : DW_CFA_same_value, ULEB128_7 (0), /* %rbx */
45 : DW_CFA_same_value, ULEB128_7 (6), /* %rbp */
46 : DW_CFA_same_value, ULEB128_7 (12), /* %r12 */
47 : DW_CFA_same_value, ULEB128_7 (13), /* %r13 */
48 : DW_CFA_same_value, ULEB128_7 (14), /* %r14 */
49 : DW_CFA_same_value, ULEB128_7 (15), /* %r15 */
50 : DW_CFA_same_value, ULEB128_7 (16), /* %r16 */
51 :
52 : /* The CFA is the SP. */
53 : DW_CFA_val_offset, ULEB128_7 (7), ULEB128_7 (0),
54 : };
55 :
56 86 : abi_info->initial_instructions = abi_cfi;
57 86 : abi_info->initial_instructions_end = &abi_cfi[sizeof abi_cfi];
58 86 : abi_info->data_alignment_factor = 8;
59 :
60 86 : abi_info->return_address_register = 16; /* %rip */
61 :
62 86 : return 0;
63 : }
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