137 lines
3.3 KiB
C
137 lines
3.3 KiB
C
/* Functions specific to running gdb native on a VAX running NetBSD
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Copyright 1989, 1992, 1993, 1994, 1996 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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#include <sys/types.h>
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#include <sys/ptrace.h>
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#include <machine/reg.h>
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#include <machine/frame.h>
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#include <machine/pcb.h>
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#include "defs.h"
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#include "inferior.h"
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#include "target.h"
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#include "gdbcore.h"
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void
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fetch_inferior_registers (regno)
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int regno;
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{
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struct reg inferior_registers;
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ptrace (PT_GETREGS, inferior_pid,
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(PTRACE_ARG3_TYPE) &inferior_registers, 0);
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memcpy (®isters[REGISTER_BYTE (0)], &inferior_registers,
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sizeof(inferior_registers));
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registers_fetched ();
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}
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void
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store_inferior_registers (regno)
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int regno;
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{
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struct reg inferior_registers;
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memcpy (&inferior_registers, ®isters[REGISTER_BYTE (0)],
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sizeof(inferior_registers));
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ptrace (PT_SETREGS, inferior_pid,
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(PTRACE_ARG3_TYPE) &inferior_registers, 0);
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registers_fetched ();
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}
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/* XXX - Add this to machine/regs.h instead? */
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struct md_core {
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struct trapframe intreg;
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/* struct fpreg freg; XXX */
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};
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static void
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fetch_core_registers (core_reg_sect, core_reg_size, which, reg_addr)
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char *core_reg_sect;
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unsigned core_reg_size;
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int which;
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unsigned int reg_addr; /* Unused in this version */
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{
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struct md_core *core_reg;
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struct reg *reg;
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core_reg = (struct md_core *)core_reg_sect;
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/* We get everything from the .reg section. */
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if (which != 0)
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return;
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if (core_reg_size < sizeof(*core_reg)) {
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fprintf_unfiltered (gdb_stderr, "Couldn't read regs from core file\n");
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return;
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}
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/* Integer registers */
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reg = (struct reg *) ®isters[REGISTER_BYTE (0)];
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memcpy(®->r0, &core_reg->intreg.r0, sizeof(reg->r0)*12);
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reg->ap = core_reg->intreg.ap;
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reg->fp = core_reg->intreg.fp;
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reg->sp = core_reg->intreg.sp;
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reg->pc = core_reg->intreg.pc;
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reg->psl = core_reg->intreg.psl;
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registers_fetched ();
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}
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/* Register that we are able to handle vaxnbsd core file formats.
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FIXME: is this really bfd_target_unknown_flavour? */
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static struct core_fns nat_core_fns =
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{
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bfd_target_unknown_flavour,
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fetch_core_registers,
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NULL
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};
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void
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_initialize_vaxnbsd_nat ()
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{
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add_core_fns (&nat_core_fns);
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}
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/*
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* kernel_u_size() is not helpful on NetBSD because
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* the "u" struct is NOT in the core dump file.
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*/
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#ifdef FETCH_KCORE_REGISTERS
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/*
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* Get registers from a kernel crash dump or live kernel.
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* Called by kcore-nbsd.c:get_kcore_registers().
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*/
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void
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fetch_kcore_registers (pcb)
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struct pcb *pcb;
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{
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printf("XXX: fetch_kcore_registers\n");
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/* The kernel does not use the FPU, so ignore it. */
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registers_fetched ();
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}
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#endif /* FETCH_KCORE_REGISTERS */
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