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99 lines
3.1 KiB
C
99 lines
3.1 KiB
C
/* Native-dependent code for OpenBSD/powerpc.
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Copyright 2004 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,
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Boston, MA 02111-1307, USA. */
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#include "defs.h"
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#include "inferior.h"
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#include "regcache.h"
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#include <stddef.h>
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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 "ppc-tdep.h"
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#include "ppcobsd-tdep.h"
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/* OpenBSD/powerpc doesn't have PT_GETFPREGS/PT_SETFPREGS like
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NetBSD/powerpc and FreeBSD/powerpc. */
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/* Fetch register REGNUM from the inferior. If REGNUM is -1, do this
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for all registers. */
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void
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fetch_inferior_registers (int regnum)
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{
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struct reg regs;
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if (ptrace (PT_GETREGS, PIDGET (inferior_ptid),
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(PTRACE_ARG3_TYPE) ®s, 0) == -1)
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perror_with_name ("Couldn't get registers");
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ppcobsd_supply_gregset (&ppcobsd_gregset, current_regcache, -1,
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®s, sizeof regs);
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}
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/* Store register REGNUM back into the inferior. If REGNUM is -1, do
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this for all registers. */
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void
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store_inferior_registers (int regnum)
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{
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struct reg regs;
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if (ptrace (PT_GETREGS, PIDGET (inferior_ptid),
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(PTRACE_ARG3_TYPE) ®s, 0) == -1)
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perror_with_name ("Couldn't get registers");
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ppcobsd_collect_gregset (&ppcobsd_gregset, current_regcache,
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regnum, ®s, sizeof regs);
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if (ptrace (PT_SETREGS, PIDGET (inferior_ptid),
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(PTRACE_ARG3_TYPE) ®s, 0) == -1)
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perror_with_name ("Couldn't write registers");
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}
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/* Provide a prototype to silence -Wmissing-prototypes. */
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void _initialize_ppcobsd_nat (void);
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void
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_initialize_ppcobsd_nat (void)
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{
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/* General-purpose registers. */
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ppcobsd_reg_offsets.r0_offset = offsetof (struct reg, gpr);
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ppcobsd_reg_offsets.pc_offset = offsetof (struct reg, pc);
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ppcobsd_reg_offsets.ps_offset = offsetof (struct reg, ps);
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ppcobsd_reg_offsets.cr_offset = offsetof (struct reg, cnd);
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ppcobsd_reg_offsets.lr_offset = offsetof (struct reg, lr);
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ppcobsd_reg_offsets.ctr_offset = offsetof (struct reg, cnt);
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ppcobsd_reg_offsets.xer_offset = offsetof (struct reg, xer);
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ppcobsd_reg_offsets.mq_offset = offsetof (struct reg, mq);
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/* Floating-point registers. */
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ppcobsd_reg_offsets.f0_offset = offsetof (struct reg, fpr);
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ppcobsd_reg_offsets.fpscr_offset = -1;
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/* AltiVec registers. */
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ppcobsd_reg_offsets.vr0_offset = offsetof (struct vreg, vreg);
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ppcobsd_reg_offsets.vscr_offset = offsetof (struct vreg, vscr);
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ppcobsd_reg_offsets.vrsave_offset = offsetof (struct vreg, vrsave);
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}
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