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 31static void 32sparc64nbsd_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 44static void 45sparc64nbsd_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 57static void 58sparc64nbsd_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 69static void 70sparc64nbsd_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 83static int 84sparc64nbsd_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 108static int 109sparc64nbsd_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} 125 126 127/* Provide a prototype to silence -Wmissing-prototypes. */ 128void _initialize_sparcnbsd_nat (void); 129 130void 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} 140