/* Register support routines for the remote server for GDB.
- Copyright (C) 2001-2017 Free Software Foundation, Inc.
+ Copyright (C) 2001-2019 Free Software Foundation, Inc.
This file is part of GDB.
struct regcache *
new_register_cache (const struct target_desc *tdesc)
{
- struct regcache *regcache = XCNEW (struct regcache);
+ struct regcache *regcache = new struct regcache;
gdb_assert (tdesc->registers_size != 0);
if (regcache->registers_owned)
free (regcache->registers);
free (regcache->register_status);
- free (regcache);
+ delete regcache;
}
}
dst->registers_valid = src->registers_valid;
}
+/* Return a reference to the description of register N. */
+
+static const struct reg &
+find_register_by_number (const struct target_desc *tdesc, int n)
+{
+ return tdesc->reg_defs[n];
+}
#ifndef IN_PROCESS_AGENT
for (int i = 0; i < tdesc->reg_defs.size (); ++i)
{
- struct reg *reg = tdesc->reg_defs[i];
-
if (regcache->register_status[i] == REG_VALID)
{
bin2hex (registers, buf, register_size (tdesc, i));
{
for (int i = 0; i < tdesc->reg_defs.size (); ++i)
{
- struct reg *reg = tdesc->reg_defs[i];
-
- if (strcmp (name, reg->name) == 0)
+ if (strcmp (name, find_register_by_number (tdesc, i).name) == 0)
return i;
}
internal_error (__FILE__, __LINE__, "Unknown register %s requested",
name);
}
-#endif
-
-struct reg *
-find_register_by_number (const struct target_desc *tdesc, int n)
-{
- return tdesc->reg_defs[n];
-}
-
-#ifndef IN_PROCESS_AGENT
static void
free_register_cache_thread (struct thread_info *thread)
{
regcache_release (void)
{
/* Flush and release all pre-existing register caches. */
- for_each_inferior (&all_threads, free_register_cache_thread);
+ for_each_thread (free_register_cache_thread);
}
#endif
int
register_size (const struct target_desc *tdesc, int n)
{
- return find_register_by_number (tdesc, n)->size / 8;
+ return find_register_by_number (tdesc, n).size / 8;
}
/* See common/common-regcache.h. */
}
static unsigned char *
-register_data (struct regcache *regcache, int n, int fetch)
+register_data (const struct regcache *regcache, int n, int fetch)
{
return (regcache->registers
- + find_register_by_number (regcache->tdesc, n)->offset / 8);
+ + find_register_by_number (regcache->tdesc, n).offset / 8);
}
-/* Supply register N, whose contents are stored in BUF, to REGCACHE.
- If BUF is NULL, the register's value is recorded as
- unavailable. */
-
void
supply_register (struct regcache *regcache, int n, const void *buf)
+{
+ return regcache->raw_supply (n, buf);
+}
+
+/* See common/common-regcache.h. */
+
+void
+regcache::raw_supply (int n, const void *buf)
{
if (buf)
{
- memcpy (register_data (regcache, n, 0), buf,
- register_size (regcache->tdesc, n));
+ memcpy (register_data (this, n, 0), buf, register_size (tdesc, n));
#ifndef IN_PROCESS_AGENT
- if (regcache->register_status != NULL)
- regcache->register_status[n] = REG_VALID;
+ if (register_status != NULL)
+ register_status[n] = REG_VALID;
#endif
}
else
{
- memset (register_data (regcache, n, 0), 0,
- register_size (regcache->tdesc, n));
+ memset (register_data (this, n, 0), 0, register_size (tdesc, n));
#ifndef IN_PROCESS_AGENT
- if (regcache->register_status != NULL)
- regcache->register_status[n] = REG_UNAVAILABLE;
+ if (register_status != NULL)
+ register_status[n] = REG_UNAVAILABLE;
#endif
}
}
#endif
}
+#ifndef IN_PROCESS_AGENT
+
+/* Supply register called NAME with value zero to REGCACHE. */
+
+void
+supply_register_by_name_zeroed (struct regcache *regcache,
+ const char *name)
+{
+ supply_register_zeroed (regcache, find_regno (regcache->tdesc, name));
+}
+
+#endif
+
/* Supply the whole register set whose contents are stored in BUF, to
REGCACHE. If BUF is NULL, all the registers' values are recorded
as unavailable. */
void
collect_register (struct regcache *regcache, int n, void *buf)
{
- memcpy (buf, register_data (regcache, n, 1),
- register_size (regcache->tdesc, n));
+ regcache->raw_collect (n, buf);
+}
+
+/* See common/common-regcache.h. */
+
+void
+regcache::raw_collect (int n, void *buf) const
+{
+ memcpy (buf, register_data (this, n, 1), register_size (tdesc, n));
}
enum register_status
#ifndef IN_PROCESS_AGENT
+/* See regcache.h. */
+
+ULONGEST
+regcache_raw_get_unsigned_by_name (struct regcache *regcache,
+ const char *name)
+{
+ return regcache_raw_get_unsigned (regcache,
+ find_regno (regcache->tdesc, name));
+}
+
void
collect_register_as_string (struct regcache *regcache, int n, char *buf)
{
}
#endif
+
+/* See common/common-regcache.h. */
+
+enum register_status
+regcache::get_register_status (int regnum) const
+{
+#ifndef IN_PROCESS_AGENT
+ gdb_assert (regnum >= 0 && regnum < tdesc->reg_defs.size ());
+ return (enum register_status) (register_status[regnum]);
+#else
+ return REG_VALID;
+#endif
+}
+
+/* See common/common-regcache.h. */
+
+bool
+regcache::raw_compare (int regnum, const void *buf, int offset) const
+{
+ gdb_assert (buf != NULL);
+
+ const unsigned char *regbuf = register_data (this, regnum, 1);
+ int size = register_size (tdesc, regnum);
+ gdb_assert (size >= offset);
+
+ return (memcmp (buf, regbuf + offset, size - offset) == 0);
+}