| 1 | /* Native-dependent code for Alpha NetBSD. |
| 2 | Copyright 2002 Free Software Foundation, Inc. |
| 3 | Contributed by Wasabi Systems, Inc. |
| 4 | |
| 5 | This file is part of GDB. |
| 6 | |
| 7 | This program is free software; you can redistribute it and/or modify |
| 8 | it under the terms of the GNU General Public License as published by |
| 9 | the Free Software Foundation; either version 2 of the License, or |
| 10 | (at your option) any later version. |
| 11 | |
| 12 | This program is distributed in the hope that it will be useful, |
| 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | GNU General Public License for more details. |
| 16 | |
| 17 | You should have received a copy of the GNU General Public License |
| 18 | along with this program; if not, write to the Free Software |
| 19 | Foundation, Inc., 59 Temple Place - Suite 330, |
| 20 | Boston, MA 02111-1307, USA. */ |
| 21 | |
| 22 | #include "defs.h" |
| 23 | #include <sys/types.h> |
| 24 | #include <machine/reg.h> |
| 25 | #include <machine/frame.h> |
| 26 | #include <machine/pcb.h> |
| 27 | #include "gdbcore.h" |
| 28 | #include "regcache.h" |
| 29 | |
| 30 | #include "alpha-tdep.h" |
| 31 | |
| 32 | #ifndef HAVE_GREGSET_T |
| 33 | typedef struct reg gregset_t; |
| 34 | #endif |
| 35 | |
| 36 | #ifndef HAVE_FPREGSET_T |
| 37 | typedef struct fpreg fpregset_t; |
| 38 | #endif |
| 39 | |
| 40 | #include "gregset.h" |
| 41 | |
| 42 | static void |
| 43 | fetch_core_registers (char *core_reg_sect, unsigned core_reg_size, int which, |
| 44 | CORE_ADDR ignore) |
| 45 | { |
| 46 | struct md_coredump *core_reg; |
| 47 | char *regs; |
| 48 | int regno; |
| 49 | |
| 50 | /* Table to map a gdb register number to a trapframe register index. */ |
| 51 | static const int regmap[] = |
| 52 | { |
| 53 | FRAME_V0, FRAME_T0, FRAME_T1, FRAME_T2, |
| 54 | FRAME_T3, FRAME_T4, FRAME_T5, FRAME_T6, |
| 55 | FRAME_T7, FRAME_S0, FRAME_S1, FRAME_S2, |
| 56 | FRAME_S3, FRAME_S4, FRAME_S5, FRAME_S6, |
| 57 | FRAME_A0, FRAME_A1, FRAME_A2, FRAME_A3, |
| 58 | FRAME_A4, FRAME_A5, FRAME_T8, FRAME_T9, |
| 59 | FRAME_T10, FRAME_T11, FRAME_RA, FRAME_T12, |
| 60 | FRAME_AT, FRAME_GP, FRAME_SP |
| 61 | }; |
| 62 | |
| 63 | /* We get everything from one section. */ |
| 64 | if (which != 0) |
| 65 | return; |
| 66 | |
| 67 | core_reg = (struct md_coredump *) core_reg_sect; |
| 68 | regs = (char *) &core_reg->md_tf; |
| 69 | |
| 70 | if (core_reg_size < sizeof (*core_reg)) |
| 71 | { |
| 72 | warning ("Wrong size register set in core file."); |
| 73 | return; |
| 74 | } |
| 75 | |
| 76 | /* Integer registers. */ |
| 77 | for (regno = 0; regno < ALPHA_ZERO_REGNUM; regno++) |
| 78 | supply_register (regno, regs + (regmap[regno] * 8)); |
| 79 | supply_register (ALPHA_ZERO_REGNUM, NULL); |
| 80 | supply_register (FP_REGNUM, NULL); |
| 81 | supply_register (PC_REGNUM, regs + (FRAME_PC * 8)); |
| 82 | |
| 83 | /* Floating point registers. */ |
| 84 | supply_fpregset (&core_reg->md_fpstate); |
| 85 | } |
| 86 | |
| 87 | static void |
| 88 | fetch_elfcore_registers (char *core_reg_sect, unsigned core_reg_size, int which, |
| 89 | CORE_ADDR ignore) |
| 90 | { |
| 91 | switch (which) |
| 92 | { |
| 93 | case 0: /* Integer registers. */ |
| 94 | if (core_reg_size != sizeof (struct reg)) |
| 95 | warning ("Wrong size register set in core file."); |
| 96 | else |
| 97 | supply_gregset ((gregset_t *) core_reg_sect); |
| 98 | break; |
| 99 | |
| 100 | case 2: /* Floating point registers. */ |
| 101 | if (core_reg_size != sizeof (struct fpreg)) |
| 102 | warning ("Wrong size FP register set in core file."); |
| 103 | else |
| 104 | supply_fpregset ((fpregset_t *) core_reg_sect); |
| 105 | break; |
| 106 | |
| 107 | default: |
| 108 | /* Don't know what kind of register request this is; just ignore it. */ |
| 109 | break; |
| 110 | } |
| 111 | } |
| 112 | |
| 113 | static struct core_fns alphanbsd_core_fns = |
| 114 | { |
| 115 | bfd_target_unknown_flavour, /* core_flavour */ |
| 116 | default_check_format, /* check_format */ |
| 117 | default_core_sniffer, /* core_sniffer */ |
| 118 | fetch_core_registers, /* core_read_registers */ |
| 119 | NULL /* next */ |
| 120 | }; |
| 121 | |
| 122 | static struct core_fns alphanbsd_elfcore_fns = |
| 123 | { |
| 124 | bfd_target_elf_flavour, /* core_flavour */ |
| 125 | default_check_format, /* check_format */ |
| 126 | default_core_sniffer, /* core_sniffer */ |
| 127 | fetch_elfcore_registers, /* core_read_registers */ |
| 128 | NULL /* next */ |
| 129 | }; |
| 130 | |
| 131 | void |
| 132 | _initialize_alphanbsd_nat (void) |
| 133 | { |
| 134 | add_core_fns (&alphanbsd_core_fns); |
| 135 | add_core_fns (&alphanbsd_elfcore_fns); |
| 136 | } |