Ben Cheng | 25b3c04 | 2013-11-20 14:45:36 -0800 | [diff] [blame] | 1 | /* x86-64 ABI-specified defaults for DWARF CFI. |
| 2 | Copyright (C) 2009 Red Hat, Inc. |
Elliott Hughes | 0333382 | 2015-02-18 22:19:45 -0800 | [diff] [blame^] | 3 | This file is part of elfutils. |
Ben Cheng | 25b3c04 | 2013-11-20 14:45:36 -0800 | [diff] [blame] | 4 | |
Elliott Hughes | 0333382 | 2015-02-18 22:19:45 -0800 | [diff] [blame^] | 5 | This file is free software; you can redistribute it and/or modify |
| 6 | it under the terms of either |
Ben Cheng | 25b3c04 | 2013-11-20 14:45:36 -0800 | [diff] [blame] | 7 | |
Elliott Hughes | 0333382 | 2015-02-18 22:19:45 -0800 | [diff] [blame^] | 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 |
Ben Cheng | 25b3c04 | 2013-11-20 14:45:36 -0800 | [diff] [blame] | 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 | |
Elliott Hughes | 0333382 | 2015-02-18 22:19:45 -0800 | [diff] [blame^] | 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/>. */ |
Ben Cheng | 25b3c04 | 2013-11-20 14:45:36 -0800 | [diff] [blame] | 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 | x86_64_abi_cfi (Ebl *ebl __attribute__ ((unused)), Dwarf_CIE *abi_info) |
| 40 | { |
| 41 | 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 | abi_info->initial_instructions = abi_cfi; |
| 57 | abi_info->initial_instructions_end = &abi_cfi[sizeof abi_cfi]; |
| 58 | abi_info->data_alignment_factor = 8; |
| 59 | |
| 60 | abi_info->return_address_register = 16; /* %rip */ |
| 61 | |
| 62 | return 0; |
| 63 | } |