| 1 | /* Target-dependent code for the GNU Hurd. |
| 2 | Copyright (C) 2002-2015 Free Software Foundation, Inc. |
| 3 | |
| 4 | This file is part of GDB. |
| 5 | |
| 6 | This program is free software; you can redistribute it and/or modify |
| 7 | it under the terms of the GNU General Public License as published by |
| 8 | the Free Software Foundation; either version 3 of the License, or |
| 9 | (at your option) any later version. |
| 10 | |
| 11 | This program is distributed in the hope that it will be useful, |
| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | GNU General Public License for more details. |
| 15 | |
| 16 | You should have received a copy of the GNU General Public License |
| 17 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
| 18 | |
| 19 | #include "defs.h" |
| 20 | #include "osabi.h" |
| 21 | #include "solib-svr4.h" |
| 22 | |
| 23 | #include "i386-tdep.h" |
| 24 | |
| 25 | /* From <sys/ucontext.h>. */ |
| 26 | static int i386gnu_gregset_reg_offset[] = |
| 27 | { |
| 28 | 11 * 4, /* %eax */ |
| 29 | 10 * 4, /* %ecx */ |
| 30 | 9 * 4, /* %edx */ |
| 31 | 8 * 4, /* %ebx */ |
| 32 | 17 * 4, /* %uesp */ |
| 33 | 6 * 4, /* %ebp */ |
| 34 | 5 * 4, /* %esi */ |
| 35 | 4 * 4, /* %edi */ |
| 36 | 14 * 4, /* %eip */ |
| 37 | 16 * 4, /* %efl */ |
| 38 | 15 * 4, /* %cs */ |
| 39 | 18 * 4, /* %ss */ |
| 40 | 3 * 4, /* %ds */ |
| 41 | 2 * 4, /* %es */ |
| 42 | 1 * 4, /* %fs */ |
| 43 | 0 * 4, /* %gs */ |
| 44 | }; |
| 45 | |
| 46 | static void |
| 47 | i386gnu_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch) |
| 48 | { |
| 49 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
| 50 | |
| 51 | /* GNU uses ELF. */ |
| 52 | i386_elf_init_abi (info, gdbarch); |
| 53 | |
| 54 | set_solib_svr4_fetch_link_map_offsets |
| 55 | (gdbarch, svr4_ilp32_fetch_link_map_offsets); |
| 56 | |
| 57 | tdep->gregset_reg_offset = i386gnu_gregset_reg_offset; |
| 58 | tdep->gregset_num_regs = ARRAY_SIZE (i386gnu_gregset_reg_offset); |
| 59 | tdep->sizeof_gregset = 19 * 4; |
| 60 | |
| 61 | tdep->jb_pc_offset = 20; /* From <bits/setjmp.h>. */ |
| 62 | } |
| 63 | |
| 64 | /* Provide a prototype to silence -Wmissing-prototypes. */ |
| 65 | extern void _initialize_i386gnu_tdep (void); |
| 66 | |
| 67 | void |
| 68 | _initialize_i386gnu_tdep (void) |
| 69 | { |
| 70 | gdbarch_register_osabi (bfd_arch_i386, 0, GDB_OSABI_HURD, i386gnu_init_abi); |
| 71 | } |