141 lines
3.9 KiB
C
141 lines
3.9 KiB
C
/* NetBSD/powerpc native-dependent code for GDB, the GNU debugger.
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Copyright 1986, 1987, 1989, 1991, 1992, 1994, 1995, 1996, 1997
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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 "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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#include <sys/param.h>
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#include <sys/ptrace.h>
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#include <machine/frame.h>
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#include <machine/reg.h>
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#include <machine/pcb.h>
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static void
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fetch_core_registers PARAMS ((char *, unsigned int, int, CORE_ADDR));
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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 infreg;
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/* Integer registers */
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ptrace(PT_GETREGS, inferior_pid, (PTRACE_ARG3_TYPE) &infreg, 0);
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memcpy(®isters[REGISTER_BYTE (GP0_REGNUM)], infreg.fixreg,
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sizeof(infreg.fixreg));
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*(long *) ®isters[REGISTER_BYTE (PC_REGNUM)] = infreg.pc;
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*(long *) ®isters[REGISTER_BYTE (PS_REGNUM)] = 0; /* XXX */
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*(long *) ®isters[REGISTER_BYTE (CR_REGNUM)] = infreg.cr;
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*(long *) ®isters[REGISTER_BYTE (LR_REGNUM)] = infreg.lr;
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*(long *) ®isters[REGISTER_BYTE (CTR_REGNUM)] = infreg.ctr;
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*(long *) ®isters[REGISTER_BYTE (XER_REGNUM)] = infreg.xer;
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*(long *) ®isters[REGISTER_BYTE (MQ_REGNUM)] = 0;
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/* Floating point registers */
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memset(®isters[REGISTER_BYTE (FP0_REGNUM)], 0, 8*32);
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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 infreg;
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/* Integer registers */
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memcpy(infreg.fixreg, ®isters[REGISTER_BYTE (GP0_REGNUM)],
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sizeof(infreg.fixreg));
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infreg.pc = *(long *) ®isters[REGISTER_BYTE (PC_REGNUM)];
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infreg.cr = *(long *) ®isters[REGISTER_BYTE (CR_REGNUM)];
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infreg.lr = *(long *) ®isters[REGISTER_BYTE (LR_REGNUM)];
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infreg.ctr = *(long *) ®isters[REGISTER_BYTE (CTR_REGNUM)];
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infreg.xer = *(long *) ®isters[REGISTER_BYTE (XER_REGNUM)];
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ptrace(PT_SETREGS, inferior_pid, (PTRACE_ARG3_TYPE) &infreg, 0);
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/* Floating point registers */
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/* XXX not yet */
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registers_fetched ();
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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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CORE_ADDR reg_addr; /* Unused in this version */
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{
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struct md_coredump *core_reg;
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struct trapframe *tf;
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struct fpreg *fs;
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register int regnum;
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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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core_reg = (struct md_coredump *)core_reg_sect;
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tf = &core_reg->frame;
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#if 0
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fs = &core_reg->md_fpstate;
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#endif
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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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for (regnum = 0; regnum < 32; regnum++)
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*(long *) ®isters[REGISTER_BYTE (regnum)] = tf->fixreg[regnum];
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#if 0
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/* Floating point registers */
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memcpy (®isters[REGISTER_BYTE (FP0_REGNUM)],
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&fs->fpr_regs[0], sizeof(fs->fpr_regs));
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#endif
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/* Special registers (PC, LR) */
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*(long *) ®isters[REGISTER_BYTE (PC_REGNUM)] = tf->srr0;
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*(long *) ®isters[REGISTER_BYTE (LR_REGNUM)] = tf->lr;
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registers_fetched ();
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}
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/* Register that we are able to handle rs6000 core file formats. */
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static struct core_fns ppcnbsd_core_fns =
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{
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bfd_target_elf_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_core_ppcnbsd ()
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{
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add_core_fns (&ppcnbsd_core_fns);
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}
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