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129 lines
3.8 KiB
C
129 lines
3.8 KiB
C
/* Native-dependent code for AMD64 BSD's.
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Copyright (C) 2003, 2004, 2007, 2008, 2009, 2010
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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 3 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, see <http://www.gnu.org/licenses/>. */
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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 "target.h"
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/* We include <signal.h> to make sure `struct fxsave64' is defined on
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NetBSD, since NetBSD's <machine/reg.h> needs it. */
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#include "gdb_assert.h"
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#include <signal.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 "amd64-tdep.h"
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#include "amd64-nat.h"
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#include "inf-ptrace.h"
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/* Fetch register REGNUM from the inferior. If REGNUM is -1, do this
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for all registers (including the floating-point registers). */
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static void
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amd64bsd_fetch_inferior_registers (struct target_ops *ops,
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struct regcache *regcache, int regnum)
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{
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struct gdbarch *gdbarch = get_regcache_arch (regcache);
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if (regnum == -1 || amd64_native_gregset_supplies_p (gdbarch, 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_TYPE_ARG3) ®s, 0) == -1)
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perror_with_name (_("Couldn't get registers"));
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amd64_supply_native_gregset (regcache, ®s, -1);
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if (regnum != -1)
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return;
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}
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if (regnum == -1 || !amd64_native_gregset_supplies_p (gdbarch, regnum))
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{
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struct fpreg fpregs;
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if (ptrace (PT_GETFPREGS, PIDGET (inferior_ptid),
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(PTRACE_TYPE_ARG3) &fpregs, 0) == -1)
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perror_with_name (_("Couldn't get floating point status"));
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amd64_supply_fxsave (regcache, -1, &fpregs);
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}
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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 (including the floating-point registers). */
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static void
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amd64bsd_store_inferior_registers (struct target_ops *ops,
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struct regcache *regcache, int regnum)
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{
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struct gdbarch *gdbarch = get_regcache_arch (regcache);
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if (regnum == -1 || amd64_native_gregset_supplies_p (gdbarch, 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_TYPE_ARG3) ®s, 0) == -1)
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perror_with_name (_("Couldn't get registers"));
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amd64_collect_native_gregset (regcache, ®s, regnum);
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if (ptrace (PT_SETREGS, PIDGET (inferior_ptid),
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(PTRACE_TYPE_ARG3) ®s, 0) == -1)
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perror_with_name (_("Couldn't write registers"));
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if (regnum != -1)
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return;
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}
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if (regnum == -1 || !amd64_native_gregset_supplies_p (gdbarch, regnum))
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{
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struct fpreg fpregs;
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if (ptrace (PT_GETFPREGS, PIDGET (inferior_ptid),
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(PTRACE_TYPE_ARG3) &fpregs, 0) == -1)
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perror_with_name (_("Couldn't get floating point status"));
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amd64_collect_fxsave (regcache, regnum, &fpregs);
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if (ptrace (PT_SETFPREGS, PIDGET (inferior_ptid),
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(PTRACE_TYPE_ARG3) &fpregs, 0) == -1)
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perror_with_name (_("Couldn't write floating point status"));
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}
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}
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/* Create a prototype *BSD/amd64 target. The client can override it
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with local methods. */
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struct target_ops *
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amd64bsd_target (void)
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{
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struct target_ops *t;
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t = inf_ptrace_target ();
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t->to_fetch_registers = amd64bsd_fetch_inferior_registers;
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t->to_store_registers = amd64bsd_store_inferior_registers;
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return t;
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}
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