#include "gdbcmd.h"
#include "regcache.h"
#include "reggroups.h"
-#include "observer.h"
-#include "remote.h"
-#include "valprint.h"
+#include "observable.h"
#include "regset.h"
#include <forward_list>
descr->sizeof_register[i] = TYPE_LENGTH (descr->register_type[i]);
descr->register_offset[i] = offset;
offset += descr->sizeof_register[i];
- gdb_assert (MAX_REGISTER_SIZE >= descr->sizeof_register[i]);
}
/* Set the real size of the raw register cache buffer. */
descr->sizeof_raw_registers = offset;
descr->sizeof_register[i] = TYPE_LENGTH (descr->register_type[i]);
descr->register_offset[i] = offset;
offset += descr->sizeof_register[i];
- gdb_assert (MAX_REGISTER_SIZE >= descr->sizeof_register[i]);
}
/* Set the real size of the readonly register cache buffer. */
descr->sizeof_cooked_registers = offset;
return register_size (regcache->arch (), n);
}
-regcache::regcache (gdbarch *gdbarch, const address_space *aspace_,
- bool readonly_p_)
- : m_aspace (aspace_), m_readonly_p (readonly_p_)
+reg_buffer::reg_buffer (gdbarch *gdbarch, bool has_pseudo)
+ : m_has_pseudo (has_pseudo)
{
gdb_assert (gdbarch != NULL);
m_descr = regcache_descr (gdbarch);
- if (m_readonly_p)
+ if (has_pseudo)
{
m_registers = XCNEWVEC (gdb_byte, m_descr->sizeof_cooked_registers);
m_register_status = XCNEWVEC (signed char,
m_registers = XCNEWVEC (gdb_byte, m_descr->sizeof_raw_registers);
m_register_status = XCNEWVEC (signed char, gdbarch_num_regs (gdbarch));
}
+}
+
+regcache::regcache (gdbarch *gdbarch, const address_space *aspace_)
+/* The register buffers. A read/write register cache can only hold
+ [0 .. gdbarch_num_regs). */
+ : detached_regcache (gdbarch, false), m_aspace (aspace_)
+{
m_ptid = minus_one_ptid;
}
return regcache_cooked_read (regcache, regnum, buf);
}
-regcache::regcache (readonly_t, const regcache &src)
- : regcache (src.arch (), nullptr, true)
+readonly_detached_regcache::readonly_detached_regcache (const regcache &src)
+ : readonly_detached_regcache (src.arch (), do_cooked_read, (void *) &src)
{
- gdb_assert (!src.m_readonly_p);
- save (do_cooked_read, (void *) &src);
}
gdbarch *
-regcache::arch () const
+reg_buffer::arch () const
{
return m_descr->gdbarch;
}
/* Return a pointer to register REGNUM's buffer cache. */
gdb_byte *
-regcache::register_buffer (int regnum) const
+reg_buffer::register_buffer (int regnum) const
{
return m_registers + m_descr->register_offset[regnum];
}
void
-regcache_save (struct regcache *regcache,
- regcache_cooked_read_ftype *cooked_read, void *src)
-{
- regcache->save (cooked_read, src);
-}
-
-void
-regcache::save (regcache_cooked_read_ftype *cooked_read,
- void *src)
+reg_buffer::save (regcache_cooked_read_ftype *cooked_read,
+ void *src)
{
struct gdbarch *gdbarch = m_descr->gdbarch;
int regnum;
- /* The DST should be `read-only', if it wasn't then the save would
- end up trying to write the register values back out to the
- target. */
- gdb_assert (m_readonly_p);
+ /* It should have pseudo registers. */
+ gdb_assert (m_has_pseudo);
/* Clear the dest. */
memset (m_registers, 0, m_descr->sizeof_cooked_registers);
memset (m_register_status, 0, m_descr->nr_cooked_registers);
}
void
-regcache::restore (struct regcache *src)
+regcache::restore (readonly_detached_regcache *src)
{
struct gdbarch *gdbarch = m_descr->gdbarch;
int regnum;
- /* The dst had better not be read-only. If it is, the `restore'
- doesn't make much sense. */
- gdb_assert (!m_readonly_p);
- gdb_assert (src->m_readonly_p);
+ gdb_assert (src != NULL);
+ gdb_assert (src->m_has_pseudo);
+
+ gdb_assert (gdbarch == src->arch ());
+
/* Copy over any registers, being careful to only restore those that
were both saved and need to be restored. The full [0 .. gdbarch_num_regs
+ gdbarch_num_pseudo_regs) range is checked since some architectures need
}
}
-void
-regcache_cpy (struct regcache *dst, struct regcache *src)
-{
- gdb_assert (src != NULL && dst != NULL);
- gdb_assert (src->m_descr->gdbarch == dst->m_descr->gdbarch);
- gdb_assert (src != dst);
- gdb_assert (src->m_readonly_p && !dst->m_readonly_p);
-
- dst->restore (src);
-}
-
-struct regcache *
-regcache_dup (struct regcache *src)
-{
- return new regcache (regcache::readonly, *src);
-}
-
enum register_status
regcache_register_status (const struct regcache *regcache, int regnum)
{
}
enum register_status
-regcache::get_register_status (int regnum) const
+reg_buffer::get_register_status (int regnum) const
{
- gdb_assert (regnum >= 0);
- if (m_readonly_p)
- gdb_assert (regnum < m_descr->nr_cooked_registers);
- else
- gdb_assert (regnum < num_raw_registers ());
+ assert_regnum (regnum);
return (enum register_status) m_register_status[regnum];
}
}
void
-regcache::invalidate (int regnum)
+detached_regcache::invalidate (int regnum)
{
- gdb_assert (!m_readonly_p);
assert_regnum (regnum);
m_register_status[regnum] = REG_UNKNOWN;
}
void
-regcache::assert_regnum (int regnum) const
+reg_buffer::assert_regnum (int regnum) const
{
- gdb_assert (regnum >= 0 && regnum < gdbarch_num_regs (arch ()));
+ gdb_assert (regnum >= 0);
+ if (m_has_pseudo)
+ gdb_assert (regnum < m_descr->nr_cooked_registers);
+ else
+ gdb_assert (regnum < gdbarch_num_regs (arch ()));
}
/* Global structure containing the current regcache. */
if (ptid_equal (regcache->ptid (), ptid) && regcache->arch () == gdbarch)
return regcache;
- regcache *new_regcache = new regcache (gdbarch, aspace, false);
+ regcache *new_regcache = new regcache (gdbarch, aspace);
regcache::current_regcache.push_front (new_regcache);
new_regcache->set_ptid (ptid);
only there is still only one target side register cache. Sigh!
On the bright side, at least there is a regcache object. */
- if (!m_readonly_p && get_register_status (regnum) == REG_UNKNOWN)
+ if (get_register_status (regnum) == REG_UNKNOWN)
{
target_fetch_registers (this, regnum);
}
enum register_status
-regcache::raw_read (int regnum, gdb_byte *buf)
+readable_regcache::raw_read (int regnum, gdb_byte *buf)
{
gdb_assert (buf != NULL);
raw_update (regnum);
template<typename T, typename>
enum register_status
-regcache::raw_read (int regnum, T *val)
+readable_regcache::raw_read (int regnum, T *val)
{
gdb_byte *buf;
enum register_status status;
}
enum register_status
-regcache::cooked_read (int regnum, gdb_byte *buf)
+readable_regcache::cooked_read (int regnum, gdb_byte *buf)
{
gdb_assert (regnum >= 0);
gdb_assert (regnum < m_descr->nr_cooked_registers);
if (regnum < num_raw_registers ())
return raw_read (regnum, buf);
- else if (m_readonly_p
+ else if (m_has_pseudo
&& m_register_status[regnum] != REG_UNKNOWN)
{
- /* Read-only register cache, perhaps the cooked value was
- cached? */
if (m_register_status[regnum] == REG_VALID)
memcpy (buf, register_buffer (regnum),
m_descr->sizeof_register[regnum]);
}
struct value *
-regcache::cooked_read_value (int regnum)
+readable_regcache::cooked_read_value (int regnum)
{
gdb_assert (regnum >= 0);
gdb_assert (regnum < m_descr->nr_cooked_registers);
if (regnum < num_raw_registers ()
- || (m_readonly_p && m_register_status[regnum] != REG_UNKNOWN)
+ || (m_has_pseudo && m_register_status[regnum] != REG_UNKNOWN)
|| !gdbarch_pseudo_register_read_value_p (m_descr->gdbarch))
{
struct value *result;
template<typename T, typename>
enum register_status
-regcache::cooked_read (int regnum, T *val)
+readable_regcache::cooked_read (int regnum, T *val)
{
enum register_status status;
gdb_byte *buf;
regcache->cooked_write (regnum, val);
}
-/* See regcache.h. */
-
-void
-regcache_raw_set_cached_value (struct regcache *regcache, int regnum,
- const gdb_byte *buf)
-{
- regcache->raw_set_cached_value (regnum, buf);
-}
-
-void
-regcache::raw_set_cached_value (int regnum, const gdb_byte *buf)
-{
- memcpy (register_buffer (regnum), buf,
- m_descr->sizeof_register[regnum]);
- m_register_status[regnum] = REG_VALID;
-}
-
void
regcache_raw_write (struct regcache *regcache, int regnum,
const gdb_byte *buf)
gdb_assert (buf != NULL);
assert_regnum (regnum);
- gdb_assert (!m_readonly_p);
/* On the sparc, writing %g0 is a no-op, so we don't even want to
change the registers array if something writes to this register. */
return;
target_prepare_to_store (this);
- raw_set_cached_value (regnum, buf);
+ raw_supply (regnum, buf);
/* Invalidate the register after it is written, in case of a
failure. */
/* Perform a partial register transfer using a read, modify, write
operation. */
-typedef void (regcache_read_ftype) (struct regcache *regcache, int regnum,
- void *buf);
-typedef void (regcache_write_ftype) (struct regcache *regcache, int regnum,
- const void *buf);
+enum register_status
+readable_regcache::read_part (int regnum, int offset, int len, void *in,
+ bool is_raw)
+{
+ struct gdbarch *gdbarch = arch ();
+ gdb_byte *reg = (gdb_byte *) alloca (register_size (gdbarch, regnum));
+
+ gdb_assert (in != NULL);
+ gdb_assert (offset >= 0 && offset <= m_descr->sizeof_register[regnum]);
+ gdb_assert (len >= 0 && offset + len <= m_descr->sizeof_register[regnum]);
+ /* Something to do? */
+ if (offset + len == 0)
+ return REG_VALID;
+ /* Read (when needed) ... */
+ enum register_status status;
+
+ if (is_raw)
+ status = raw_read (regnum, reg);
+ else
+ status = cooked_read (regnum, reg);
+ if (status != REG_VALID)
+ return status;
+
+ /* ... modify ... */
+ memcpy (in, reg + offset, len);
+
+ return REG_VALID;
+}
enum register_status
-regcache::xfer_part (int regnum, int offset, int len, void *in,
+regcache::write_part (int regnum, int offset, int len,
const void *out, bool is_raw)
{
struct gdbarch *gdbarch = arch ();
gdb_byte *reg = (gdb_byte *) alloca (register_size (gdbarch, regnum));
+ gdb_assert (out != NULL);
gdb_assert (offset >= 0 && offset <= m_descr->sizeof_register[regnum]);
gdb_assert (len >= 0 && offset + len <= m_descr->sizeof_register[regnum]);
/* Something to do? */
if (offset + len == 0)
return REG_VALID;
/* Read (when needed) ... */
- if (in != NULL
- || offset > 0
+ if (offset > 0
|| offset + len < m_descr->sizeof_register[regnum])
{
enum register_status status;
if (status != REG_VALID)
return status;
}
- /* ... modify ... */
- if (in != NULL)
- memcpy (in, reg + offset, len);
- if (out != NULL)
- memcpy (reg + offset, out, len);
+
+ memcpy (reg + offset, out, len);
/* ... write (when needed). */
- if (out != NULL)
- {
- if (is_raw)
- raw_write (regnum, reg);
- else
- cooked_write (regnum, reg);
- }
+ if (is_raw)
+ raw_write (regnum, reg);
+ else
+ cooked_write (regnum, reg);
return REG_VALID;
}
}
enum register_status
-regcache::raw_read_part (int regnum, int offset, int len, gdb_byte *buf)
+readable_regcache::raw_read_part (int regnum, int offset, int len, gdb_byte *buf)
{
assert_regnum (regnum);
- return xfer_part (regnum, offset, len, buf, NULL, true);
+ return read_part (regnum, offset, len, buf, true);
}
void
const gdb_byte *buf)
{
assert_regnum (regnum);
- xfer_part (regnum, offset, len, NULL, buf, true);
+ write_part (regnum, offset, len, buf, true);
}
enum register_status
enum register_status
-regcache::cooked_read_part (int regnum, int offset, int len, gdb_byte *buf)
+readable_regcache::cooked_read_part (int regnum, int offset, int len,
+ gdb_byte *buf)
{
gdb_assert (regnum >= 0 && regnum < m_descr->nr_cooked_registers);
- return xfer_part (regnum, offset, len, buf, NULL, false);
+ return read_part (regnum, offset, len, buf, false);
}
void
const gdb_byte *buf)
{
gdb_assert (regnum >= 0 && regnum < m_descr->nr_cooked_registers);
- xfer_part (regnum, offset, len, NULL, buf, false);
+ write_part (regnum, offset, len, buf, false);
}
/* Supply register REGNUM, whose contents are stored in BUF, to REGCACHE. */
}
void
-regcache::raw_supply (int regnum, const void *buf)
+detached_regcache::raw_supply (int regnum, const void *buf)
{
void *regbuf;
size_t size;
assert_regnum (regnum);
- gdb_assert (!m_readonly_p);
regbuf = register_buffer (regnum);
size = m_descr->sizeof_register[regnum];
most significant bytes of the integer will be truncated. */
void
-regcache::raw_supply_integer (int regnum, const gdb_byte *addr, int addr_len,
- bool is_signed)
+detached_regcache::raw_supply_integer (int regnum, const gdb_byte *addr,
+ int addr_len, bool is_signed)
{
enum bfd_endian byte_order = gdbarch_byte_order (m_descr->gdbarch);
gdb_byte *regbuf;
size_t regsize;
assert_regnum (regnum);
- gdb_assert (!m_readonly_p);
regbuf = register_buffer (regnum);
regsize = m_descr->sizeof_register[regnum];
unavailable). */
void
-regcache::raw_supply_zeroed (int regnum)
+detached_regcache::raw_supply_zeroed (int regnum)
{
void *regbuf;
size_t size;
assert_regnum (regnum);
- gdb_assert (!m_readonly_p);
regbuf = register_buffer (regnum);
size = m_descr->sizeof_register[regnum];
}
int
-regcache::num_raw_registers () const
+reg_buffer::num_raw_registers () const
{
return gdbarch_num_regs (arch ());
}
}
void
-regcache::dump (ui_file *file, enum regcache_dump_what what_to_dump)
+register_dump::dump (ui_file *file)
{
- struct gdbarch *gdbarch = m_descr->gdbarch;
+ auto descr = regcache_descr (m_gdbarch);
int regnum;
int footnote_nr = 0;
int footnote_register_offset = 0;
int footnote_register_type_name_null = 0;
long register_offset = 0;
- gdb_assert (m_descr->nr_cooked_registers
- == (gdbarch_num_regs (gdbarch)
- + gdbarch_num_pseudo_regs (gdbarch)));
+ gdb_assert (descr->nr_cooked_registers
+ == (gdbarch_num_regs (m_gdbarch)
+ + gdbarch_num_pseudo_regs (m_gdbarch)));
- for (regnum = -1; regnum < m_descr->nr_cooked_registers; regnum++)
+ for (regnum = -1; regnum < descr->nr_cooked_registers; regnum++)
{
/* Name. */
if (regnum < 0)
fprintf_unfiltered (file, " %-10s", "Name");
else
{
- const char *p = gdbarch_register_name (gdbarch, regnum);
+ const char *p = gdbarch_register_name (m_gdbarch, regnum);
if (p == NULL)
p = "";
/* Relative number. */
if (regnum < 0)
fprintf_unfiltered (file, " %4s", "Rel");
- else if (regnum < gdbarch_num_regs (gdbarch))
+ else if (regnum < gdbarch_num_regs (m_gdbarch))
fprintf_unfiltered (file, " %4d", regnum);
else
fprintf_unfiltered (file, " %4d",
- (regnum - gdbarch_num_regs (gdbarch)));
+ (regnum - gdbarch_num_regs (m_gdbarch)));
/* Offset. */
if (regnum < 0)
else
{
fprintf_unfiltered (file, " %6ld",
- m_descr->register_offset[regnum]);
- if (register_offset != m_descr->register_offset[regnum]
+ descr->register_offset[regnum]);
+ if (register_offset != descr->register_offset[regnum]
|| (regnum > 0
- && (m_descr->register_offset[regnum]
- != (m_descr->register_offset[regnum - 1]
- + m_descr->sizeof_register[regnum - 1])))
+ && (descr->register_offset[regnum]
+ != (descr->register_offset[regnum - 1]
+ + descr->sizeof_register[regnum - 1])))
)
{
if (!footnote_register_offset)
}
else
fprintf_unfiltered (file, " ");
- register_offset = (m_descr->register_offset[regnum]
- + m_descr->sizeof_register[regnum]);
+ register_offset = (descr->register_offset[regnum]
+ + descr->sizeof_register[regnum]);
}
/* Size. */
if (regnum < 0)
fprintf_unfiltered (file, " %5s ", "Size");
else
- fprintf_unfiltered (file, " %5ld", m_descr->sizeof_register[regnum]);
+ fprintf_unfiltered (file, " %5ld", descr->sizeof_register[regnum]);
/* Type. */
{
{
static const char blt[] = "builtin_type";
- t = TYPE_NAME (register_type (arch (), regnum));
+ t = TYPE_NAME (register_type (m_gdbarch, regnum));
if (t == NULL)
{
if (!footnote_register_type_name_null)
/* Leading space always present. */
fprintf_unfiltered (file, " ");
- /* Value, raw. */
- if (what_to_dump == regcache_dump_raw)
- {
- if (regnum < 0)
- fprintf_unfiltered (file, "Raw value");
- else if (regnum >= num_raw_registers ())
- fprintf_unfiltered (file, "<cooked>");
- else if (get_register_status (regnum) == REG_UNKNOWN)
- fprintf_unfiltered (file, "<invalid>");
- else if (get_register_status (regnum) == REG_UNAVAILABLE)
- fprintf_unfiltered (file, "<unavailable>");
- else
- {
- raw_update (regnum);
- print_hex_chars (file, register_buffer (regnum),
- m_descr->sizeof_register[regnum],
- gdbarch_byte_order (gdbarch), true);
- }
- }
-
- /* Value, cooked. */
- if (what_to_dump == regcache_dump_cooked)
- {
- if (regnum < 0)
- fprintf_unfiltered (file, "Cooked value");
- else
- {
- const gdb_byte *buf = NULL;
- enum register_status status;
- struct value *value = NULL;
-
- if (regnum < num_raw_registers ())
- {
- raw_update (regnum);
- status = get_register_status (regnum);
- buf = register_buffer (regnum);
- }
- else
- {
- value = cooked_read_value (regnum);
-
- if (!value_optimized_out (value)
- && value_entirely_available (value))
- {
- status = REG_VALID;
- buf = value_contents_all (value);
- }
- else
- status = REG_UNAVAILABLE;
- }
-
- if (status == REG_UNKNOWN)
- fprintf_unfiltered (file, "<invalid>");
- else if (status == REG_UNAVAILABLE)
- fprintf_unfiltered (file, "<unavailable>");
- else
- print_hex_chars (file, buf,
- m_descr->sizeof_register[regnum],
- gdbarch_byte_order (gdbarch), true);
-
- if (value != NULL)
- {
- release_value (value);
- value_free (value);
- }
- }
- }
-
- /* Group members. */
- if (what_to_dump == regcache_dump_groups)
- {
- if (regnum < 0)
- fprintf_unfiltered (file, "Groups");
- else
- {
- const char *sep = "";
- struct reggroup *group;
-
- for (group = reggroup_next (gdbarch, NULL);
- group != NULL;
- group = reggroup_next (gdbarch, group))
- {
- if (gdbarch_register_reggroup_p (gdbarch, regnum, group))
- {
- fprintf_unfiltered (file,
- "%s%s", sep, reggroup_name (group));
- sep = ",";
- }
- }
- }
- }
-
- /* Remote packet configuration. */
- if (what_to_dump == regcache_dump_remote)
- {
- if (regnum < 0)
- {
- fprintf_unfiltered (file, "Rmt Nr g/G Offset");
- }
- else if (regnum < num_raw_registers ())
- {
- int pnum, poffset;
-
- if (remote_register_number_and_offset (arch (), regnum,
- &pnum, &poffset))
- fprintf_unfiltered (file, "%7d %11d", pnum, poffset);
- }
- }
+ dump_reg (file, regnum);
fprintf_unfiltered (file, "\n");
}
fprintf_unfiltered (file, "*%d: Inconsistent register offsets.\n",
footnote_register_offset);
if (footnote_register_type_name_null)
- fprintf_unfiltered (file,
+ fprintf_unfiltered (file,
"*%d: Register type's name NULL.\n",
footnote_register_type_name_null);
}
-static void
-regcache_print (const char *args, enum regcache_dump_what what_to_dump)
-{
- /* Where to send output. */
- stdio_file file;
- ui_file *out;
-
- if (args == NULL)
- out = gdb_stdout;
- else
- {
- if (!file.open (args, "w"))
- perror_with_name (_("maintenance print architecture"));
- out = &file;
- }
-
- if (target_has_registers)
- get_current_regcache ()->dump (out, what_to_dump);
- else
- {
- /* For the benefit of "maint print registers" & co when
- debugging an executable, allow dumping a regcache even when
- there is no thread selected / no registers. */
- regcache dummy_regs (target_gdbarch ());
- dummy_regs.dump (out, what_to_dump);
- }
-}
-
-static void
-maintenance_print_registers (const char *args, int from_tty)
-{
- regcache_print (args, regcache_dump_none);
-}
-
-static void
-maintenance_print_raw_registers (const char *args, int from_tty)
-{
- regcache_print (args, regcache_dump_raw);
-}
-
-static void
-maintenance_print_cooked_registers (const char *args, int from_tty)
-{
- regcache_print (args, regcache_dump_cooked);
-}
-
-static void
-maintenance_print_register_groups (const char *args, int from_tty)
-{
- regcache_print (args, regcache_dump_groups);
-}
-
-static void
-maintenance_print_remote_registers (const char *args, int from_tty)
-{
- regcache_print (args, regcache_dump_remote);
-}
-
#if GDB_SELF_TEST
#include "selftest.h"
#include "selftest-arch.h"
#include "gdbthread.h"
+#include "target-float.h"
namespace selftests {
SELF_CHECK (regcache_access::current_regcache_size () == 2);
}
-static void test_target_fetch_registers (target_ops *self, regcache *regs,
- int regno);
-static void test_target_store_registers (target_ops *self, regcache *regs,
- int regno);
-static enum target_xfer_status
- test_target_xfer_partial (struct target_ops *ops,
- enum target_object object,
- const char *annex, gdb_byte *readbuf,
- const gdb_byte *writebuf,
- ULONGEST offset, ULONGEST len,
- ULONGEST *xfered_len);
-
class target_ops_no_register : public test_target_ops
{
public:
target_ops_no_register ()
: test_target_ops {}
- {
- to_fetch_registers = test_target_fetch_registers;
- to_store_registers = test_target_store_registers;
- to_xfer_partial = test_target_xfer_partial;
-
- to_data = this;
- }
+ {}
void reset ()
{
xfer_partial_called = 0;
}
+ void fetch_registers (regcache *regs, int regno) override;
+ void store_registers (regcache *regs, int regno) override;
+
+ enum target_xfer_status xfer_partial (enum target_object object,
+ const char *annex, gdb_byte *readbuf,
+ const gdb_byte *writebuf,
+ ULONGEST offset, ULONGEST len,
+ ULONGEST *xfered_len) override;
+
unsigned int fetch_registers_called = 0;
unsigned int store_registers_called = 0;
unsigned int xfer_partial_called = 0;
};
-static void
-test_target_fetch_registers (target_ops *self, regcache *regs, int regno)
+void
+target_ops_no_register::fetch_registers (regcache *regs, int regno)
{
- auto ops = static_cast<target_ops_no_register *> (self->to_data);
-
/* Mark register available. */
regs->raw_supply_zeroed (regno);
- ops->fetch_registers_called++;
+ this->fetch_registers_called++;
}
-static void
-test_target_store_registers (target_ops *self, regcache *regs, int regno)
+void
+target_ops_no_register::store_registers (regcache *regs, int regno)
{
- auto ops = static_cast<target_ops_no_register *> (self->to_data);
-
- ops->store_registers_called++;
+ this->store_registers_called++;
}
-static enum target_xfer_status
-test_target_xfer_partial (struct target_ops *self, enum target_object object,
- const char *annex, gdb_byte *readbuf,
- const gdb_byte *writebuf,
- ULONGEST offset, ULONGEST len, ULONGEST *xfered_len)
+enum target_xfer_status
+target_ops_no_register::xfer_partial (enum target_object object,
+ const char *annex, gdb_byte *readbuf,
+ const gdb_byte *writebuf,
+ ULONGEST offset, ULONGEST len,
+ ULONGEST *xfered_len)
{
- auto ops = static_cast<target_ops_no_register *> (self->to_data);
-
- ops->xfer_partial_called++;
+ this->xfer_partial_called++;
*xfered_len = len;
return TARGET_XFER_OK;
{
public:
readwrite_regcache (struct gdbarch *gdbarch)
- : regcache (gdbarch, nullptr, false)
+ : regcache (gdbarch, nullptr)
{}
};
{
/* Error out if debugging something, because we're going to push the
test target, which would pop any existing target. */
- if (current_target.to_stratum >= process_stratum)
+ if (target_stack->to_stratum >= process_stratum)
error (_("target already pushed"));
/* Create a mock environment. An inferior with a thread, with a
mock_target.reset ();
}
- regcache readonly (regcache::readonly, readwrite);
+ readonly_detached_regcache readonly (readwrite);
/* GDB may go to target layer to fetch all registers and memory for
readonly regcache. */
|| bfd_arch == bfd_arch_msp430 || bfd_arch == bfd_arch_mep
|| bfd_arch == bfd_arch_mips || bfd_arch == bfd_arch_v850_rh850
|| bfd_arch == bfd_arch_tic6x || bfd_arch == bfd_arch_mn10300
- || bfd_arch == bfd_arch_rl78 || bfd_arch == bfd_arch_score)
+ || bfd_arch == bfd_arch_rl78 || bfd_arch == bfd_arch_score
+ || bfd_arch == bfd_arch_riscv)
{
/* Raw registers. If raw registers are not in save_reggroup,
their status are unknown. */
}
}
+/* Test regcache::cooked_write by writing some expected contents to
+ registers, and checking that contents read from registers and the
+ expected contents are the same. */
+
+static void
+cooked_write_test (struct gdbarch *gdbarch)
+{
+ /* Error out if debugging something, because we're going to push the
+ test target, which would pop any existing target. */
+ if (target_stack->to_stratum >= process_stratum)
+ error (_("target already pushed"));
+
+ /* Create a mock environment. A process_stratum target pushed. */
+
+ target_ops_no_register mock_target;
+
+ /* Push the process_stratum target so we can mock accessing
+ registers. */
+ push_target (&mock_target);
+
+ /* Pop it again on exit (return/exception). */
+ struct on_exit
+ {
+ ~on_exit ()
+ {
+ pop_all_targets_at_and_above (process_stratum);
+ }
+ } pop_targets;
+
+ readwrite_regcache readwrite (gdbarch);
+
+ const int num_regs = (gdbarch_num_regs (gdbarch)
+ + gdbarch_num_pseudo_regs (gdbarch));
+
+ for (auto regnum = 0; regnum < num_regs; regnum++)
+ {
+ if (register_size (gdbarch, regnum) == 0
+ || gdbarch_cannot_store_register (gdbarch, regnum))
+ continue;
+
+ auto bfd_arch = gdbarch_bfd_arch_info (gdbarch)->arch;
+
+ if ((bfd_arch == bfd_arch_sparc
+ /* SPARC64_CWP_REGNUM, SPARC64_PSTATE_REGNUM,
+ SPARC64_ASI_REGNUM and SPARC64_CCR_REGNUM are hard to test. */
+ && gdbarch_ptr_bit (gdbarch) == 64
+ && (regnum >= gdbarch_num_regs (gdbarch)
+ && regnum <= gdbarch_num_regs (gdbarch) + 4))
+ || (bfd_arch == bfd_arch_spu
+ /* SPU pseudo registers except SPU_SP_REGNUM are got by
+ TARGET_OBJECT_SPU. */
+ && regnum >= gdbarch_num_regs (gdbarch) && regnum != 130))
+ continue;
+
+ std::vector<gdb_byte> expected (register_size (gdbarch, regnum), 0);
+ std::vector<gdb_byte> buf (register_size (gdbarch, regnum), 0);
+ const auto type = register_type (gdbarch, regnum);
+
+ if (TYPE_CODE (type) == TYPE_CODE_FLT
+ || TYPE_CODE (type) == TYPE_CODE_DECFLOAT)
+ {
+ /* Generate valid float format. */
+ target_float_from_string (expected.data (), type, "1.25");
+ }
+ else if (TYPE_CODE (type) == TYPE_CODE_INT
+ || TYPE_CODE (type) == TYPE_CODE_ARRAY
+ || TYPE_CODE (type) == TYPE_CODE_PTR
+ || TYPE_CODE (type) == TYPE_CODE_UNION
+ || TYPE_CODE (type) == TYPE_CODE_STRUCT)
+ {
+ if (bfd_arch == bfd_arch_ia64
+ || (regnum >= gdbarch_num_regs (gdbarch)
+ && (bfd_arch == bfd_arch_xtensa
+ || bfd_arch == bfd_arch_bfin
+ || bfd_arch == bfd_arch_m32c
+ /* m68hc11 pseudo registers are in memory. */
+ || bfd_arch == bfd_arch_m68hc11
+ || bfd_arch == bfd_arch_m68hc12
+ || bfd_arch == bfd_arch_s390))
+ || (bfd_arch == bfd_arch_frv
+ /* FRV pseudo registers except iacc0. */
+ && regnum > gdbarch_num_regs (gdbarch)))
+ {
+ /* Skip setting the expected values for some architecture
+ registers. */
+ }
+ else if (bfd_arch == bfd_arch_rl78 && regnum == 40)
+ {
+ /* RL78_PC_REGNUM */
+ for (auto j = 0; j < register_size (gdbarch, regnum) - 1; j++)
+ expected[j] = j;
+ }
+ else
+ {
+ for (auto j = 0; j < register_size (gdbarch, regnum); j++)
+ expected[j] = j;
+ }
+ }
+ else if (TYPE_CODE (type) == TYPE_CODE_FLAGS)
+ {
+ /* No idea how to test flags. */
+ continue;
+ }
+ else
+ {
+ /* If we don't know how to create the expected value for the
+ this type, make it fail. */
+ SELF_CHECK (0);
+ }
+
+ readwrite.cooked_write (regnum, expected.data ());
+
+ SELF_CHECK (readwrite.cooked_read (regnum, buf.data ()) == REG_VALID);
+ SELF_CHECK (expected == buf);
+ }
+}
+
} // namespace selftests
#endif /* GDB_SELF_TEST */
regcache_descr_handle
= gdbarch_data_register_post_init (init_regcache_descr);
- observer_attach_target_changed (regcache_observer_target_changed);
- observer_attach_thread_ptid_changed (regcache::regcache_thread_ptid_changed);
+ gdb::observers::target_changed.attach (regcache_observer_target_changed);
+ gdb::observers::thread_ptid_changed.attach
+ (regcache::regcache_thread_ptid_changed);
add_com ("flushregs", class_maintenance, reg_flush_command,
_("Force gdb to flush its register cache (maintainer command)"));
- add_cmd ("registers", class_maintenance, maintenance_print_registers,
- _("Print the internal register configuration.\n"
- "Takes an optional file parameter."), &maintenanceprintlist);
- add_cmd ("raw-registers", class_maintenance,
- maintenance_print_raw_registers,
- _("Print the internal register configuration "
- "including raw values.\n"
- "Takes an optional file parameter."), &maintenanceprintlist);
- add_cmd ("cooked-registers", class_maintenance,
- maintenance_print_cooked_registers,
- _("Print the internal register configuration "
- "including cooked values.\n"
- "Takes an optional file parameter."), &maintenanceprintlist);
- add_cmd ("register-groups", class_maintenance,
- maintenance_print_register_groups,
- _("Print the internal register configuration "
- "including each register's group.\n"
- "Takes an optional file parameter."),
- &maintenanceprintlist);
- add_cmd ("remote-registers", class_maintenance,
- maintenance_print_remote_registers, _("\
-Print the internal register configuration including each register's\n\
-remote register number and buffer offset in the g/G packets.\n\
-Takes an optional file parameter."),
- &maintenanceprintlist);
-
#if GDB_SELF_TEST
selftests::register_test ("current_regcache", selftests::current_regcache_test);
selftests::register_test_foreach_arch ("regcache::cooked_read_test",
selftests::cooked_read_test);
+ selftests::register_test_foreach_arch ("regcache::cooked_write_test",
+ selftests::cooked_write_test);
#endif
}