Class readonly_detached_regcache
authorYao Qi <yao.qi@linaro.org>
Wed, 21 Feb 2018 11:20:03 +0000 (11:20 +0000)
committerYao Qi <yao.qi@linaro.org>
Wed, 21 Feb 2018 11:20:03 +0000 (11:20 +0000)
commitdaf6667d1f94c7e74df4076daf021cd28a2797b6
treec3cdc9beab7cb79439034a2c1b209e5e99e1826f
parentfc5b87361580d915e28ae5f3cc4794b75b671b5a
Class readonly_detached_regcache

This patch adds a new class (type) for readonly regcache, which is
created via regcache::save.  readonly_detached_regcache inherits
readable_regcache.

gdb:

2018-02-21  Yao Qi  <yao.qi@linaro.org>

* dummy-frame.c (dummy_frame_cache) <prev_regcache>: Use
readonly_detached_regcache.
(dummy_frame_prev_register): Use regcache->cooked_read.
* frame.c (frame_save_as_regcache): Change return type.
(frame_pop): Update.
* frame.h (frame_save_as_regcache): Update declaration.
* inferior.h (get_infcall_suspend_state_regcache): Update
declaration.
* infrun.c (infcall_suspend_state) <registers>: use
readonly_detached_regcache.
(save_infcall_suspend_state): Don't use regcache_dup.
(get_infcall_suspend_state_regcache): Change return type.
* linux-fork.c (struct fork_info) <savedregs>: Change to
readonly_detached_regcache.
<pc>: New field.
(fork_save_infrun_state): Don't use regcache_dup.
(info_checkpoints_command): Adjust.
* mi/mi-main.c (register_changed_p): Update declaration.
(mi_cmd_data_list_changed_registers): Use
readonly_detached_regcache.
(register_changed_p): Change parameter type to
readonly_detached_regcache.
* ppc-linux-tdep.c (ppu2spu_cache) <regcache>: Use
readonly_detached_regcache.
(ppu2spu_sniffer): Construct a new readonly_detached_regcache.
* regcache.c (readonly_detached_regcache::readonly_detached_regcache):
New.
(regcache::save): Move it to reg_buffer.
(regcache::restore): Change parameter type.
(regcache_dup): Remove.
* regcache.h (reg_buffer) <save>: New method.
(readonly_detached_regcache): New class.
* spu-tdep.c (spu2ppu_cache) <regcache>: Use
readonly_detached_regcache.
(spu2ppu_sniffer): Construct a new readonly_detached_regcache.
12 files changed:
gdb/ChangeLog
gdb/dummy-frame.c
gdb/frame.c
gdb/frame.h
gdb/inferior.h
gdb/infrun.c
gdb/linux-fork.c
gdb/mi/mi-main.c
gdb/ppc-linux-tdep.c
gdb/regcache.c
gdb/regcache.h
gdb/spu-tdep.c