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Simplify regcache::xfer_part 

Since xfer_part is already a class method, and only
{raw,cooked}_{read,write} are passed to it.  We can remove these two
arguments, but add a bool argument is_raw, indicating raw registers or
cooked registers are accessed.

gdb:

2017-10-17  Yao Qi  <yao.qi@linaro.org>

	* regcache.c (regcache::xfer_part): Remove parameters read and
	write, add parameter is_raw.  All callers are updated.
This commit is contained in:
Yao Qi 2017-10-17 12:29:26 +01:00
parent 7a7cdfa04b
commit d3037ba6a3
3 changed files with 19 additions and 20 deletions
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5
gdb/ChangeLog
View File

@ -1,3 +1,8 @@
2017-10-17 Yao Qi <yao.qi@linaro.org>
* regcache.c (regcache::xfer_part): Remove parameters read and
write, add parameter is_raw. All callers are updated.
2017-10-16 Keith Seitz <keiths@redhat.com>
* c-typeprint.c (enum access_specifier): Moved here from

30
gdb/regcache.c
View File

@ -915,12 +915,7 @@ typedef void (regcache_write_ftype) (struct regcache *regcache, int regnum,
enum register_status
regcache::xfer_part (int regnum, int offset, int len, void *in,
const void *out,
enum register_status (*read) (struct regcache *regcache,
int regnum,
gdb_byte *buf),
void (*write) (struct regcache *regcache, int regnum,
const gdb_byte *buf))
const void *out, bool is_raw)
{
struct gdbarch *gdbarch = arch ();
gdb_byte *reg = (gdb_byte *) alloca (register_size (gdbarch, regnum));
@ -938,7 +933,10 @@ regcache::xfer_part (int regnum, int offset, int len, void *in,
enum register_status status;
gdb_assert (read != NULL);
status = read (this, regnum, reg);
if (is_raw)
status = raw_read (regnum, reg);
else
status = cooked_read (regnum, reg);
if (status != REG_VALID)
return status;
}
@ -950,8 +948,10 @@ regcache::xfer_part (int regnum, int offset, int len, void *in,
/* ... write (when needed). */
if (out != NULL)
{
gdb_assert (write != NULL);
write (this, regnum, reg);
if (is_raw)
raw_write (regnum, reg);
else
cooked_write (regnum, reg);
}
return REG_VALID;
@ -968,8 +968,7 @@ enum register_status
regcache::raw_read_part (int regnum, int offset, int len, gdb_byte *buf)
{
gdb_assert (regnum >= 0 && regnum < m_descr->nr_raw_registers);
return xfer_part (regnum, offset, len, buf, NULL,
regcache_raw_read, regcache_raw_write);
return xfer_part (regnum, offset, len, buf, NULL, true);
}
void
@ -984,8 +983,7 @@ regcache::raw_write_part (int regnum, int offset, int len,
const gdb_byte *buf)
{
gdb_assert (regnum >= 0 && regnum < m_descr->nr_raw_registers);
xfer_part (regnum, offset, len, NULL, buf, regcache_raw_read,
regcache_raw_write);
xfer_part (regnum, offset, len, NULL, buf, true);
}
enum register_status
@ -1000,8 +998,7 @@ enum register_status
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,
regcache_cooked_read, regcache_cooked_write);
return xfer_part (regnum, offset, len, buf, NULL, false);
}
void
@ -1016,8 +1013,7 @@ regcache::cooked_write_part (int regnum, int offset, int len,
const gdb_byte *buf)
{
gdb_assert (regnum >= 0 && regnum < m_descr->nr_cooked_registers);
xfer_part (regnum, offset, len, NULL, buf,
regcache_cooked_read, regcache_cooked_write);
xfer_part (regnum, offset, len, NULL, buf, false);
}
/* Supply register REGNUM, whose contents are stored in BUF, to REGCACHE. */

4
gdb/regcache.h
View File

@ -354,9 +354,7 @@ private:
void restore (struct regcache *src);
enum register_status xfer_part (int regnum, int offset, int len, void *in,
const void *out,
decltype (regcache_raw_read) read,
decltype (regcache_raw_write) write);
const void *out, bool is_raw);
void transfer_regset (const struct regset *regset,
struct regcache *out_regcache,