| 1 | /* Native-dependent code for NetBSD/sparc64. |
| 2 | |
| 3 | Copyright 2003, 2004 Free Software Foundation, 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 | |
| 24 | #include "sparc64-tdep.h" |
| 25 | #include "sparc-nat.h" |
| 26 | |
| 27 | /* NetBSD is different from the other OSes that support both SPARC and |
| 28 | UltraSPARC in that the result of ptrace(2) depends on whether the |
| 29 | traced process is 32-bit or 64-bit. */ |
| 30 | |
| 31 | static void |
| 32 | sparc64nbsd_supply_gregset (const struct sparc_gregset *gregset, |
| 33 | struct regcache *regcache, |
| 34 | int regnum, const void *gregs) |
| 35 | { |
| 36 | int sparc32 = (gdbarch_ptr_bit (current_gdbarch) == 32); |
| 37 | |
| 38 | if (sparc32) |
| 39 | sparc32_supply_gregset (&sparc32nbsd_gregset, regcache, regnum, gregs); |
| 40 | else |
| 41 | sparc64_supply_gregset (&sparc64nbsd_gregset, regcache, regnum, gregs); |
| 42 | } |
| 43 | |
| 44 | static void |
| 45 | sparc64nbsd_collect_gregset (const struct sparc_gregset *gregset, |
| 46 | const struct regcache *regcache, |
| 47 | int regnum, void *gregs) |
| 48 | { |
| 49 | int sparc32 = (gdbarch_ptr_bit (current_gdbarch) == 32); |
| 50 | |
| 51 | if (sparc32) |
| 52 | sparc32_collect_gregset (&sparc32nbsd_gregset, regcache, regnum, gregs); |
| 53 | else |
| 54 | sparc64_collect_gregset (&sparc64nbsd_gregset, regcache, regnum, gregs); |
| 55 | } |
| 56 | |
| 57 | static void |
| 58 | sparc64nbsd_supply_fpregset (struct regcache *regcache, |
| 59 | int regnum, const void *fpregs) |
| 60 | { |
| 61 | int sparc32 = (gdbarch_ptr_bit (current_gdbarch) == 32); |
| 62 | |
| 63 | if (sparc32) |
| 64 | sparc32_supply_fpregset (regcache, regnum, fpregs); |
| 65 | else |
| 66 | sparc64_supply_fpregset (regcache, regnum, fpregs); |
| 67 | } |
| 68 | |
| 69 | static void |
| 70 | sparc64nbsd_collect_fpregset (const struct regcache *regcache, |
| 71 | int regnum, void *fpregs) |
| 72 | { |
| 73 | int sparc32 = (gdbarch_ptr_bit (current_gdbarch) == 32); |
| 74 | |
| 75 | if (sparc32) |
| 76 | sparc32_collect_fpregset (regcache, regnum, fpregs); |
| 77 | else |
| 78 | sparc64_collect_fpregset (regcache, regnum, fpregs); |
| 79 | } |
| 80 | |
| 81 | /* Determine whether `gregset_t' contains register REGNUM. */ |
| 82 | |
| 83 | static int |
| 84 | sparc64nbsd_gregset_supplies_p (int regnum) |
| 85 | { |
| 86 | if (gdbarch_ptr_bit (current_gdbarch) == 32) |
| 87 | return sparc32_gregset_supplies_p (regnum); |
| 88 | |
| 89 | /* Integer registers. */ |
| 90 | if ((regnum >= SPARC_G1_REGNUM && regnum <= SPARC_G7_REGNUM) |
| 91 | || (regnum >= SPARC_O0_REGNUM && regnum <= SPARC_O7_REGNUM) |
| 92 | || (regnum >= SPARC_L0_REGNUM && regnum <= SPARC_L7_REGNUM) |
| 93 | || (regnum >= SPARC_I0_REGNUM && regnum <= SPARC_I7_REGNUM)) |
| 94 | return 1; |
| 95 | |
| 96 | /* Control registers. */ |
| 97 | if (regnum == SPARC64_PC_REGNUM |
| 98 | || regnum == SPARC64_NPC_REGNUM |
| 99 | || regnum == SPARC64_STATE_REGNUM |
| 100 | || regnum == SPARC64_Y_REGNUM) |
| 101 | return 1; |
| 102 | |
| 103 | return 0; |
| 104 | } |
| 105 | |
| 106 | /* Determine whether `fpregset_t' contains register REGNUM. */ |
| 107 | |
| 108 | static int |
| 109 | sparc64nbsd_fpregset_supplies_p (int regnum) |
| 110 | { |
| 111 | if (gdbarch_ptr_bit (current_gdbarch) == 32) |
| 112 | return sparc32_fpregset_supplies_p (regnum); |
| 113 | |
| 114 | /* Floating-point registers. */ |
| 115 | if ((regnum >= SPARC_F0_REGNUM && regnum <= SPARC_F31_REGNUM) |
| 116 | || (regnum >= SPARC64_F32_REGNUM && regnum <= SPARC64_F62_REGNUM)) |
| 117 | return 1; |
| 118 | |
| 119 | /* Control registers. */ |
| 120 | if (regnum == SPARC64_FSR_REGNUM) |
| 121 | return 1; |
| 122 | |
| 123 | return 0; |
| 124 | } |
| 125 | |
| 126 | \f |
| 127 | /* Provide a prototype to silence -Wmissing-prototypes. */ |
| 128 | void _initialize_sparcnbsd_nat (void); |
| 129 | |
| 130 | void |
| 131 | _initialize_sparcnbsd_nat (void) |
| 132 | { |
| 133 | sparc_supply_gregset = sparc64nbsd_supply_gregset; |
| 134 | sparc_collect_gregset = sparc64nbsd_collect_gregset; |
| 135 | sparc_supply_fpregset = sparc64nbsd_supply_fpregset; |
| 136 | sparc_collect_fpregset = sparc64nbsd_collect_fpregset; |
| 137 | sparc_gregset_supplies_p = sparc64nbsd_gregset_supplies_p; |
| 138 | sparc_fpregset_supplies_p = sparc64nbsd_fpregset_supplies_p; |
| 139 | } |