/* Native-dependent code for NetBSD/sparc. Copyright 2002, 2003, 2004 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 "regcache.h" #include "target.h" #include "sparc-tdep.h" #include "sparc-nat.h" /* Support for debugging kernel virtual memory images. */ #include <sys/types.h> #include <machine/pcb.h> #include "bsd-kvm.h" static int sparc32nbsd_supply_pcb (struct regcache *regcache, struct pcb *pcb) { /* The following is true for NetBSD 1.6.2: The pcb contains %sp, %pc, %psr and %wim. From this information we reconstruct the register state as it would look when we just returned from cpu_switch(). */ /* The stack pointer shouldn't be zero. */ if (pcb->pcb_sp == 0) return 0; regcache_raw_supply (regcache, SPARC_SP_REGNUM, &pcb->pcb_sp); regcache_raw_supply (regcache, SPARC_O7_REGNUM, &pcb->pcb_pc); regcache_raw_supply (regcache, SPARC32_PSR_REGNUM, &pcb->pcb_psr); regcache_raw_supply (regcache, SPARC32_WIM_REGNUM, &pcb->pcb_wim); regcache_raw_supply (regcache, SPARC32_PC_REGNUM, &pcb->pcb_pc); sparc_supply_rwindow (regcache, pcb->pcb_sp, -1); return 1; } /* Provide a prototype to silence -Wmissing-prototypes. */ void _initialize_sparcnbsd_nat (void); void _initialize_sparcnbsd_nat (void) { sparc_gregset = &sparc32nbsd_gregset; /* We've got nothing to add to the generic SPARC target. */ add_target (sparc_target ()); /* Support debugging kernel virtual memory images. */ bsd_kvm_add_target (sparc32nbsd_supply_pcb); }