1 /* Native-dependent code for NetBSD/sparc. 2 3 Copyright (C) 2002-2023 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 3 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, see <http://www.gnu.org/licenses/>. */ 19 20 #include "defs.h" 21 #include "regcache.h" 22 #include "target.h" 23 24 #include "sparc-tdep.h" 25 #include "sparc-nat.h" 26 #include "netbsd-nat.h" 27 28 /* Support for debugging kernel virtual memory images. */ 29 30 #include <sys/types.h> 31 #include <machine/pcb.h> 32 33 #include "bsd-kvm.h" 34 35 static int 36 sparc32nbsd_supply_pcb (struct regcache *regcache, struct pcb *pcb) 37 { 38 /* The following is true for NetBSD 1.6.2: 39 40 The pcb contains %sp, %pc, %psr and %wim. From this information 41 we reconstruct the register state as it would look when we just 42 returned from cpu_switch(). */ 43 44 /* The stack pointer shouldn't be zero. */ 45 if (pcb->pcb_sp == 0) 46 return 0; 47 48 regcache->raw_supply (SPARC_SP_REGNUM, &pcb->pcb_sp); 49 regcache->raw_supply (SPARC_O7_REGNUM, &pcb->pcb_pc); 50 regcache->raw_supply (SPARC32_PSR_REGNUM, &pcb->pcb_psr); 51 regcache->raw_supply (SPARC32_WIM_REGNUM, &pcb->pcb_wim); 52 regcache->raw_supply (SPARC32_PC_REGNUM, &pcb->pcb_pc); 53 54 sparc_supply_rwindow (regcache, pcb->pcb_sp, -1); 55 56 return 1; 57 } 58 59 static sparc_target<nbsd_nat_target> the_sparc_nbsd_nat_target; 60 61 void _initialize_sparcnbsd_nat (); 62 void 63 _initialize_sparcnbsd_nat () 64 { 65 sparc_gregmap = &sparc32nbsd_gregmap; 66 sparc_fpregmap = &sparc32_bsd_fpregmap; 67 68 add_inf_child_target (&the_sparc_nbsd_nat_target); 69 70 /* Support debugging kernel virtual memory images. */ 71 bsd_kvm_add_target (sparc32nbsd_supply_pcb); 72 } 73