Class-fy regcache

This patch moves regcache declaration to regcache.h, and converts
regcache apis to member functions, for example, regcache_invalidate
is changed to regcache::invalidate.

This patch also add "m_" prefix to these private fields.

gdb:

2017-04-28  Yao Qi  <yao.qi@linaro.org>

	* regcache.c (struct regcache): Move to regcache.h
	(regcache::arch): New method.
	(regcache_get_ptid): Update.
	(get_regcache_arch): Call arch method.
	(get_regcache_aspace): Call method aspace.
	(register_buffer): Change it to method.
	(regcache_save): Change it to regcache::save.
	(regcache_restore): Likewise.
	(regcache_cpy_no_passthrough): Remove the declaration.
	(regcache_cpy): Call methods restore and cpy_no_passthrough.
	(regcache_cpy_no_passthrough): Change it to method
	cpy_no_passthrough.
	(regcache_register_status): Change it to method
	get_register_status.
	(regcache_invalidate): Change it to method invalidate.
	(regcache_thread_ptid_changed): Use methods ptid and set_ptid.
	(regcache_raw_update): Change it to method raw_update.
	(regcache_raw_read): Likewise.
	(regcache_raw_read_signed): Likewise.
	(regcache_raw_read_unsigned): Likewise.
	(regcache_raw_write_signed): Likewise.
	(regcache_raw_write_unsigned): Likewise.
	(regcache_cooked_read): Likewise.
	(regcache_cooked_read_value): Likewise.
	(regcache_cooked_read_signed): Likewise.
	(regcache_cooked_read_unsigned): Likewise.
	(regcache_cooked_write_signed): Likewise.
	(regcache_cooked_write_unsigned): Likewise.
	(regcache_raw_set_cached_value): Likewise.
	(regcache_raw_write): Likewise.
	(regcache_cooked_write): Likewise.
	(regcache_xfer_part): Likewise.
	(regcache_raw_read_part): Likewise.
	(regcache_raw_write_part): Likewise.
	(regcache_cooked_read_part): Likewise.
	(regcache_cooked_write_part): Likewise.
	(regcache_raw_supply): Likewise.
	(regcache_raw_collect): Likewise.
	(regcache_transfer_regset): Likewise.
	(regcache_supply_regset): Likewise.
	(regcache_collect_regset): Likewise.
	(regcache_debug_print_register): Likewise.
	(enum regcache_dump_what): Move it to regcache.h.
	(regcache_dump): Change it to method dump.
	* regcache.h (enum regcache_dump_what): New.
	(class regcache): New.
	* target.c (target_fetch_registers): Call method
	debug_print_register.
	(target_store_registers): Likewise.

1 files changed, 2 insertions, 3 deletions

diff --git a/gdb/target.c b/gdb/target.c
index 10a5315..e526bcc 100644
--- a/gdb/target.c
+++ b/gdb/target.c
@@ -3552,7 +3552,7 @@ target_fetch_registers (struct regcache *regcache, int regno)
 {
   current_target.to_fetch_registers (&current_target, regcache, regno);
   if (targetdebug)
-    regcache_debug_print_register ("target_fetch_registers", regcache, regno);
+    regcache->debug_print_register ("target_fetch_registers", regno);
 }
 
 void
@@ -3564,8 +3564,7 @@ target_store_registers (struct regcache *regcache, int regno)
   current_target.to_store_registers (&current_target, regcache, regno);
   if (targetdebug)
     {
-      regcache_debug_print_register ("target_store_registers", regcache,
-				     regno);
+      regcache->debug_print_register ("target_store_registers", regno);
     }
 }