struct gdbarch *,
struct address_space *);
-/* Transfer a raw register [0..NUM_REGS) between core-gdb and the
- regcache. The read variants return the status of the register. */
-
-enum register_status regcache_raw_read (struct regcache *regcache,
- int rawnum, gdb_byte *buf);
-void regcache_raw_write (struct regcache *regcache, int rawnum,
- const gdb_byte *buf);
extern enum register_status
regcache_raw_read_signed (struct regcache *regcache,
int regnum, LONGEST *val);
extern LONGEST regcache_raw_get_signed (struct regcache *regcache,
int regnum);
-/* Partial transfer of raw registers. These perform read, modify,
- write style operations. The read variant returns the status of the
- register. */
-
-extern enum register_status
- regcache_raw_read_part (struct regcache *regcache, int regnum,
- int offset, int len, gdb_byte *buf);
-void regcache_raw_write_part (struct regcache *regcache, int regnum,
- int offset, int len, const gdb_byte *buf);
-
-void regcache_invalidate (struct regcache *regcache, int regnum);
-
-/* Transfer of pseudo-registers. The read variants return a register
- status, as an indication of when a ``cooked'' register was
- constructed from valid, invalid or unavailable ``raw''
- registers. */
-
-/* Transfer a cooked register [0..NUM_REGS+NUM_PSEUDO_REGS). */
-enum register_status regcache_cooked_read (struct regcache *regcache,
- int rawnum, gdb_byte *buf);
-void regcache_cooked_write (struct regcache *regcache, int rawnum,
- const gdb_byte *buf);
-
-/* Read register REGNUM from REGCACHE and return a new value. This
- will call mark_value_bytes_unavailable as appropriate. */
-
-struct value *regcache_cooked_read_value (struct regcache *regcache,
- int regnum);
-
/* Read a register as a signed/unsigned quantity. */
extern enum register_status
regcache_cooked_read_signed (struct regcache *regcache,
extern void regcache_cooked_write_unsigned (struct regcache *regcache,
int regnum, ULONGEST val);
-/* Partial transfer of a cooked register. These perform read, modify,
- write style operations. */
-
-enum register_status regcache_cooked_read_part (struct regcache *regcache,
- int regnum, int offset,
- int len, gdb_byte *buf);
-void regcache_cooked_write_part (struct regcache *regcache, int regnum,
- int offset, int len, const gdb_byte *buf);
-
/* Special routines to read/write the PC. */
/* For regcache_read_pc see common/common-regcache.h. */
extern void regcache_write_pc (struct regcache *regcache, CORE_ADDR pc);
-/* Transfer a raw register [0..NUM_REGS) between the regcache and the
- target. These functions are called by the target in response to a
- target_fetch_registers() or target_store_registers(). */
-
-extern void regcache_raw_supply (struct regcache *regcache,
- int regnum, const void *buf);
-extern void regcache_raw_collect (const struct regcache *regcache,
- int regnum, void *buf);
-
/* Mapping between register numbers and offsets in a buffer, for use
in the '*regset' functions below. In an array of
'regcache_map_entry' each element is interpreted like follows:
extern int register_size (struct gdbarch *gdbarch, int regnum);
-typedef enum register_status (regcache_cooked_read_ftype) (void *src,
- int regnum,
- gdb_byte *buf);
+typedef gdb::function_view<register_status (int regnum, gdb_byte *buf)>
+ register_read_ftype;
/* A (register_number, register_value) pair. */
/* Buffer of registers. */
-class reg_buffer
+class reg_buffer : public reg_buffer_common
{
public:
reg_buffer (gdbarch *gdbarch, bool has_pseudo);
/* Return regcache's architecture. */
gdbarch *arch () const;
- /* Get the availability status of the value of register REGNUM in this
- buffer. */
- enum register_status get_register_status (int regnum) const;
+ /* See common/common-regcache.h. */
+ enum register_status get_register_status (int regnum) const override;
+
+ /* See common/common-regcache.h. */
+ void raw_collect (int regnum, void *buf) const override;
- virtual ~reg_buffer ()
+ /* Collect register REGNUM from REGCACHE. Store collected value as an integer
+ at address ADDR, in target endian, with length ADDR_LEN and sign IS_SIGNED.
+ If ADDR_LEN is greater than the register size, then the integer will be
+ sign or zero extended. If ADDR_LEN is smaller than the register size, then
+ the most significant bytes of the integer will be truncated. */
+ void raw_collect_integer (int regnum, gdb_byte *addr, int addr_len,
+ bool is_signed) const;
+
+ /* See common/common-regcache.h. */
+ void raw_supply (int regnum, const void *buf) override;
+
+ void raw_supply (int regnum, const reg_buffer &src)
{
- xfree (m_registers);
- xfree (m_register_status);
+ raw_supply (regnum, src.register_buffer (regnum));
}
+
+ /* Supply register REGNUM to REGCACHE. Value to supply is an integer stored
+ at address ADDR, in target endian, with length ADDR_LEN and sign IS_SIGNED.
+ If the register size is greater than ADDR_LEN, then the integer will be
+ sign or zero extended. If the register size is smaller than the integer,
+ then the most significant bytes of the integer will be truncated. */
+ void raw_supply_integer (int regnum, const gdb_byte *addr, int addr_len,
+ bool is_signed);
+
+ /* Supply register REGNUM with zeroed value to REGCACHE. This is not the same
+ as calling raw_supply with NULL (which will set the state to
+ unavailable). */
+ void raw_supply_zeroed (int regnum);
+
+ void invalidate (int regnum);
+
+ virtual ~reg_buffer () = default;
+
+ /* See common/common-regcache.h. */
+ bool raw_compare (int regnum, const void *buf, int offset) const override;
+
protected:
/* Assert on the range of REGNUM. */
void assert_regnum (int regnum) const;
/* Save a register cache. The set of registers saved into the
regcache determined by the save_reggroup. COOKED_READ returns
zero iff the register's value can't be returned. */
- void save (regcache_cooked_read_ftype *cooked_read, void *src);
+ void save (register_read_ftype cooked_read);
struct regcache_descr *m_descr;
bool m_has_pseudo;
/* The register buffers. */
- gdb_byte *m_registers;
+ std::unique_ptr<gdb_byte[]> m_registers;
/* Register cache status. */
- signed char *m_register_status;
+ std::unique_ptr<register_status[]> m_register_status;
friend class regcache;
friend class detached_regcache;
: reg_buffer (gdbarch, has_pseudo)
{}
+ /* Transfer a raw register [0..NUM_REGS) from core-gdb to this regcache,
+ return its value in *BUF and return its availability status. */
+
enum register_status raw_read (int regnum, gdb_byte *buf);
template<typename T, typename = RequireLongest<T>>
enum register_status raw_read (int regnum, T *val);
+ /* Partial transfer of raw registers. Return the status of the register. */
enum register_status raw_read_part (int regnum, int offset, int len,
gdb_byte *buf);
/* Make certain that the register REGNUM is up-to-date. */
virtual void raw_update (int regnum) = 0;
+ /* Transfer a raw register [0..NUM_REGS+NUM_PSEUDO_REGS) from core-gdb to
+ this regcache, return its value in *BUF and return its availability status. */
enum register_status cooked_read (int regnum, gdb_byte *buf);
template<typename T, typename = RequireLongest<T>>
enum register_status cooked_read (int regnum, T *val);
+ /* Partial transfer of a cooked register. */
enum register_status cooked_read_part (int regnum, int offset, int len,
gdb_byte *buf);
+ /* Read register REGNUM from the regcache and return a new value. This
+ will call mark_value_bytes_unavailable as appropriate. */
struct value *cooked_read_value (int regnum);
protected:
- enum register_status read_part (int regnum, int offset, int len, void *in,
- bool is_raw);
+
+ /* Perform a partial register transfer using a read, modify, write
+ operation. Will fail if register is currently invalid. */
+ enum register_status read_part (int regnum, int offset, int len,
+ gdb_byte *out, bool is_raw);
};
/* Buffer of registers, can be read and written. */
: readable_regcache (gdbarch, has_pseudo)
{}
- void raw_supply (int regnum, const void *buf);
-
- void raw_supply (int regnum, const reg_buffer &src)
- {
- raw_supply (regnum, src.register_buffer (regnum));
- }
-
void raw_update (int regnum) override
{}
- void raw_supply_integer (int regnum, const gdb_byte *addr, int addr_len,
- bool is_signed);
-
- void raw_supply_zeroed (int regnum);
-
- void invalidate (int regnum);
-
DISABLE_COPY_AND_ASSIGN (detached_regcache);
};
read-only register cache. */
void restore (readonly_detached_regcache *src);
- void cooked_write (int regnum, const gdb_byte *buf);
+ /* Update the value of raw register REGNUM (in the range [0..NUM_REGS)) and
+ transfer its value to core-gdb. */
void raw_write (int regnum, const gdb_byte *buf);
template<typename T, typename = RequireLongest<T>>
void raw_write (int regnum, T val);
+ /* Transfer of pseudo-registers. */
+ void cooked_write (int regnum, const gdb_byte *buf);
+
template<typename T, typename = RequireLongest<T>>
void cooked_write (int regnum, T val);
void raw_update (int regnum) override;
- void raw_collect (int regnum, void *buf) const;
-
- void raw_collect_integer (int regnum, gdb_byte *addr, int addr_len,
- bool is_signed) const;
-
+ /* Partial transfer of raw registers. Perform read, modify, write style
+ operations. */
void raw_write_part (int regnum, int offset, int len, const gdb_byte *buf);
+ /* Partial transfer of a cooked register. Perform read, modify, write style
+ operations. */
void cooked_write_part (int regnum, int offset, int len,
const gdb_byte *buf);
int regnum, const void *in_buf,
void *out_buf, size_t size) const;
+ /* Perform a partial register transfer using a read, modify, write
+ operation. */
enum register_status write_part (int regnum, int offset, int len,
- const void *out, bool is_raw);
-
+ const gdb_byte *in, bool is_raw);
/* The address space of this register cache (for registers where it
makes sense, like PC or SP). */
class readonly_detached_regcache : public readable_regcache
{
public:
- readonly_detached_regcache (const regcache &src);
+ readonly_detached_regcache (regcache &src);
/* Create a readonly regcache by getting contents from COOKED_READ. */
- readonly_detached_regcache (gdbarch *gdbarch,
- regcache_cooked_read_ftype *cooked_read,
- void *src)
+ readonly_detached_regcache (gdbarch *gdbarch, register_read_ftype cooked_read)
: readable_regcache (gdbarch, true)
{
- save (cooked_read, src);
+ save (cooked_read);
}
DISABLE_COPY_AND_ASSIGN (readonly_detached_regcache);
projects / deliverable / binutils-gdb.git / blobdiff