| /* Target-dependent code for NetBSD/i386, for GDB. |
| Copyright 1988, 1989, 1991, 1992, 1994, 1996, 2000, 2001, 2002 |
| Free Software Foundation, Inc. |
| |
| This file is part of GDB. |
| |
| This program 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; either version 2 of the License, or |
| (at your option) any later version. |
| |
| This program 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 this program; if not, write to the Free Software |
| Foundation, Inc., 59 Temple Place - Suite 330, |
| Boston, MA 02111-1307, USA. */ |
| |
| #include "defs.h" |
| #include "gdbtypes.h" |
| #include "gdbcore.h" |
| #include "regcache.h" |
| |
| #include "i387-tdep.h" |
| |
| /* Map a GDB register number to an offset in the reg structure. */ |
| static int regmap[] = |
| { |
| ( 0 * 4), /* %eax */ |
| ( 1 * 4), /* %ecx */ |
| ( 2 * 4), /* %edx */ |
| ( 3 * 4), /* %ebx */ |
| ( 4 * 4), /* %esp */ |
| ( 5 * 4), /* %epb */ |
| ( 6 * 4), /* %esi */ |
| ( 7 * 4), /* %edi */ |
| ( 8 * 4), /* %eip */ |
| ( 9 * 4), /* %eflags */ |
| (10 * 4), /* %cs */ |
| (11 * 4), /* %ss */ |
| (12 * 4), /* %ds */ |
| (13 * 4), /* %es */ |
| (14 * 4), /* %fs */ |
| (15 * 4), /* %gs */ |
| }; |
| |
| #define SIZEOF_STRUCT_REG (16 * 4) |
| |
| static void |
| i386nbsd_supply_reg (char *regs, int regno) |
| { |
| int i; |
| |
| for (i = 0; i <= 15; i++) |
| if (regno == i || regno == -1) |
| supply_register (i, regs + regmap[i]); |
| } |
| |
| static void |
| fetch_core_registers (char *core_reg_sect, unsigned core_reg_size, int which, |
| CORE_ADDR ignore) |
| { |
| char *regs, *fsave; |
| |
| /* We get everything from one section. */ |
| if (which != 0) |
| return; |
| |
| if (core_reg_size < (SIZEOF_STRUCT_REG + 108)) |
| { |
| warning ("Wrong size register set in core file."); |
| return; |
| } |
| |
| regs = core_reg_sect; |
| fsave = core_reg_sect + SIZEOF_STRUCT_REG; |
| |
| /* Integer registers. */ |
| i386nbsd_supply_reg (regs, -1); |
| |
| /* Floating point registers. */ |
| i387_supply_fsave (fsave); |
| } |
| |
| static void |
| fetch_elfcore_registers (char *core_reg_sect, unsigned core_reg_size, |
| int which, CORE_ADDR ignore) |
| { |
| switch (which) |
| { |
| case 0: /* Integer registers. */ |
| if (core_reg_size != SIZEOF_STRUCT_REG) |
| warning ("Wrong size register set in core file."); |
| else |
| i386nbsd_supply_reg (core_reg_sect, -1); |
| break; |
| |
| case 2: /* Floating point registers. */ |
| if (core_reg_size != 108) |
| warning ("Wrong size FP register set in core file."); |
| else |
| i387_supply_fsave (core_reg_sect); |
| break; |
| |
| case 3: /* "Extended" floating point registers. This is gdb-speak |
| for SSE/SSE2. */ |
| if (core_reg_size != 512) |
| warning ("Wrong size XMM register set in core file."); |
| else |
| i387_supply_fxsave (core_reg_sect); |
| break; |
| |
| default: |
| /* Don't know what kind of register request this is; just ignore it. */ |
| break; |
| } |
| } |
| |
| static struct core_fns i386nbsd_core_fns = |
| { |
| bfd_target_unknown_flavour, /* core_flavour */ |
| default_check_format, /* check_format */ |
| default_core_sniffer, /* core_sniffer */ |
| fetch_core_registers, /* core_read_registers */ |
| NULL /* next */ |
| }; |
| |
| static struct core_fns i386nbsd_elfcore_fns = |
| { |
| bfd_target_elf_flavour, /* core_flavour */ |
| default_check_format, /* check_format */ |
| default_core_sniffer, /* core_sniffer */ |
| fetch_elfcore_registers, /* core_read_registers */ |
| NULL /* next */ |
| }; |
| |
| void |
| _initialize_i386nbsd_tdep (void) |
| { |
| add_core_fns (&i386nbsd_core_fns); |
| add_core_fns (&i386nbsd_elfcore_fns); |
| } |