1 /* m68k ABI-specified defaults for DWARF CFI.
2 This file is part of elfutils.
3
4 This file is free software; you can redistribute it and/or modify
5 it under the terms of either
6
7 * the GNU Lesser General Public License as published by the Free
8 Software Foundation; either version 3 of the License, or (at
9 your option) any later version
10
11 or
12
13 * the GNU General Public License as published by the Free
14 Software Foundation; either version 2 of the License, or (at
15 your option) any later version
16
17 or both in parallel, as here.
18
19 elfutils is distributed in the hope that it will be useful, but
20 WITHOUT ANY WARRANTY; without even the implied warranty of
21 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
22 General Public License for more details.
23
24 You should have received copies of the GNU General Public License and
25 the GNU Lesser General Public License along with this program. If
26 not, see <http://www.gnu.org/licenses/>. */
27
28 #ifdef HAVE_CONFIG_H
29 # include <config.h>
30 #endif
31
32 #include <dwarf.h>
33
34 #define BACKEND m68k_
35 #include "libebl_CPU.h"
36
37 int
m68k_abi_cfi(Ebl * ebl,Dwarf_CIE * abi_info)38 m68k_abi_cfi (Ebl *ebl __attribute__ ((unused)), Dwarf_CIE *abi_info)
39 {
40 static const uint8_t abi_cfi[] =
41 {
42 #define SV(n) DW_CFA_same_value, ULEB128_7 (n)
43 /* Call-saved registers %d2-%d7, %a2-%a6. */
44 SV (2), SV (3), SV (4), SV (5), SV (6), SV (7),
45 SV (10), SV (11), SV (12), SV (13), SV (14),
46
47 /* The CFA is the SP. */
48 DW_CFA_val_offset, ULEB128_7 (15), ULEB128_7 (0),
49 };
50
51 abi_info->initial_instructions = abi_cfi;
52 abi_info->initial_instructions_end = &abi_cfi[sizeof abi_cfi];
53 abi_info->data_alignment_factor = -4;
54
55 abi_info->return_address_register = 24; /* %pc */
56
57 return 0;
58 }
59