| /* i386 ABI-specified defaults for DWARF CFI. |
| Copyright (C) 2009 Red Hat, Inc. |
| This file is part of Red Hat elfutils. |
| |
| Red Hat elfutils is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by the |
| Free Software Foundation; version 2 of the License. |
| |
| Red Hat elfutils is distributed in the hope that it will be useful, but |
| WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License along |
| with Red Hat elfutils; if not, write to the Free Software Foundation, |
| Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA. |
| |
| Red Hat elfutils is an included package of the Open Invention Network. |
| An included package of the Open Invention Network is a package for which |
| Open Invention Network licensees cross-license their patents. No patent |
| license is granted, either expressly or impliedly, by designation as an |
| included package. Should you wish to participate in the Open Invention |
| Network licensing program, please visit www.openinventionnetwork.com |
| <http://www.openinventionnetwork.com>. */ |
| |
| #ifdef HAVE_CONFIG_H |
| # include <config.h> |
| #endif |
| |
| #include <dwarf.h> |
| |
| #define BACKEND i386_ |
| #include "libebl_CPU.h" |
| |
| int |
| i386_abi_cfi (Ebl *ebl __attribute__ ((unused)), Dwarf_CIE *abi_info) |
| { |
| static const uint8_t abi_cfi[] = |
| { |
| /* Call-saved regs. */ |
| DW_CFA_same_value, ULEB128_7 (3), /* %ebx */ |
| DW_CFA_same_value, ULEB128_7 (5), /* %ebp */ |
| DW_CFA_same_value, ULEB128_7 (6), /* %esi */ |
| DW_CFA_same_value, ULEB128_7 (7), /* %edi */ |
| |
| /* The CFA is the SP. */ |
| DW_CFA_val_offset, ULEB128_7 (4), ULEB128_7 (0), |
| |
| /* Segment registers are call-saved if ever used at all. */ |
| DW_CFA_same_value, ULEB128_7 (40), /* %es */ |
| DW_CFA_same_value, ULEB128_7 (41), /* %cs */ |
| DW_CFA_same_value, ULEB128_7 (42), /* %ss */ |
| DW_CFA_same_value, ULEB128_7 (43), /* %ds */ |
| DW_CFA_same_value, ULEB128_7 (44), /* %fs */ |
| DW_CFA_same_value, ULEB128_7 (45), /* %gs */ |
| }; |
| |
| abi_info->initial_instructions = abi_cfi; |
| abi_info->initial_instructions_end = &abi_cfi[sizeof abi_cfi]; |
| abi_info->data_alignment_factor = 4; |
| |
| abi_info->return_address_register = 8; /* %eip */ |
| |
| return 0; |
| } |