1 /* Target-dependent code for the GNU Hurd. 2 Copyright (C) 2002-2019 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 void 65 _initialize_i386gnu_tdep (void) 66 { 67 gdbarch_register_osabi (bfd_arch_i386, 0, GDB_OSABI_HURD, i386gnu_init_abi); 68 } 69