/* Native-dependent code for AMD64 BSD's.
- Copyright (C) 2003-2017 Free Software Foundation, Inc.
+ Copyright (C) 2003-2019 Free Software Foundation, Inc.
This file is part of GDB.
/* Fetch register REGNUM from the inferior. If REGNUM is -1, do this
for all registers (including the floating-point registers). */
-static void
-amd64bsd_fetch_inferior_registers (struct target_ops *ops,
- struct regcache *regcache, int regnum)
+void
+amd64bsd_fetch_inferior_registers (struct regcache *regcache, int regnum)
{
- struct gdbarch *gdbarch = get_regcache_arch (regcache);
- pid_t pid = get_ptrace_pid (regcache_get_ptid (regcache));
+ struct gdbarch *gdbarch = regcache->arch ();
+ pid_t pid = get_ptrace_pid (regcache->ptid ());
+#if defined(PT_GETFSBASE) || defined(PT_GETGSBASE)
+ const struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
+#endif
if (regnum == -1 || amd64_native_gregset_supplies_p (gdbarch, regnum))
{
return;
}
+#ifdef PT_GETFSBASE
+ if (regnum == -1 || regnum == tdep->fsbase_regnum)
+ {
+ register_t base;
+
+ if (ptrace (PT_GETFSBASE, pid, (PTRACE_TYPE_ARG3) &base, 0) == -1)
+ perror_with_name (_("Couldn't get segment register fs_base"));
+
+ regcache->raw_supply (tdep->fsbase_regnum, &base);
+ if (regnum != -1)
+ return;
+ }
+#endif
+#ifdef PT_GETGSBASE
+ if (regnum == -1 || regnum == tdep->fsbase_regnum + 1)
+ {
+ register_t base;
+
+ if (ptrace (PT_GETGSBASE, pid, (PTRACE_TYPE_ARG3) &base, 0) == -1)
+ perror_with_name (_("Couldn't get segment register gs_base"));
+
+ regcache->raw_supply (tdep->fsbase_regnum + 1, &base);
+ if (regnum != -1)
+ return;
+ }
+#endif
+
if (regnum == -1 || !amd64_native_gregset_supplies_p (gdbarch, regnum))
{
struct fpreg fpregs;
/* Store register REGNUM back into the inferior. If REGNUM is -1, do
this for all registers (including the floating-point registers). */
-static void
-amd64bsd_store_inferior_registers (struct target_ops *ops,
- struct regcache *regcache, int regnum)
+void
+amd64bsd_store_inferior_registers (struct regcache *regcache, int regnum)
{
- struct gdbarch *gdbarch = get_regcache_arch (regcache);
- pid_t pid = get_ptrace_pid (regcache_get_ptid (regcache));
+ struct gdbarch *gdbarch = regcache->arch ();
+ pid_t pid = get_ptrace_pid (regcache->ptid ());
+#if defined(PT_SETFSBASE) || defined(PT_SETGSBASE)
+ const struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
+#endif
if (regnum == -1 || amd64_native_gregset_supplies_p (gdbarch, regnum))
{
return;
}
+#ifdef PT_SETFSBASE
+ if (regnum == -1 || regnum == tdep->fsbase_regnum)
+ {
+ register_t base;
+
+ /* Clear the full base value to support 32-bit targets. */
+ base = 0;
+ regcache->raw_collect (tdep->fsbase_regnum, &base);
+
+ if (ptrace (PT_SETFSBASE, pid, (PTRACE_TYPE_ARG3) &base, 0) == -1)
+ perror_with_name (_("Couldn't write segment register fs_base"));
+ if (regnum != -1)
+ return;
+ }
+#endif
+#ifdef PT_SETGSBASE
+ if (regnum == -1 || regnum == tdep->fsbase_regnum + 1)
+ {
+ register_t base;
+
+ /* Clear the full base value to support 32-bit targets. */
+ base = 0;
+ regcache->raw_collect (tdep->fsbase_regnum + 1, &base);
+
+ if (ptrace (PT_SETGSBASE, pid, (PTRACE_TYPE_ARG3) &base, 0) == -1)
+ perror_with_name (_("Couldn't write segment register gs_base"));
+ if (regnum != -1)
+ return;
+ }
+#endif
+
if (regnum == -1 || !amd64_native_gregset_supplies_p (gdbarch, regnum))
{
struct fpreg fpregs;
perror_with_name (_("Couldn't write floating point status"));
}
}
-
-/* Create a prototype *BSD/amd64 target. The client can override it
- with local methods. */
-
-struct target_ops *
-amd64bsd_target (void)
-{
- struct target_ops *t;
-
- t = x86bsd_target ();
- t->to_fetch_registers = amd64bsd_fetch_inferior_registers;
- t->to_store_registers = amd64bsd_store_inferior_registers;
- return t;
-}