binutils-gdb/gdb/arch
Simon Marchi e4e20d4511 gdb: use reg_buffer_common throughout gdbsupport/common-regcache.h
Right now, gdbsupport/common-regcache.h contains two abstractons for a
regcache.  An opaque type `regcache` (gdb and gdbserver both have their
own regcache that is the concrete version of this) and an abstract base
class `reg_buffer_common`, that is the base of regcaches on both sides.
These abstractions allow code to be written for both gdb and gdbserver,
for instance in the gdb/arch sub-directory.

However, having two
different abstractions is impractical.  If some common code has a regcache,
and wants to use an operation defined on reg_buffer_common, it can't.
It would be better to have just one.  Change all instances of `regcache
*` in gdbsupport/common-regcache.h to be `reg_buffer_common *`, then fix
fallouts.

Implementations in gdb and gdbserver now need to down-cast (using
gdb::checked_static_cast) from reg_buffer_common to their concrete
regcache type.  Some of them could be avoided by changing free functions
(like regcache_register_size) to be virtual methods on
reg_buffer_common.  I tried it, it seems to work, but I did not include
it in this series to avoid adding unnecessary changes.

Change-Id: Ia5503adb6b5509a0f4604bd2a68b4642cc5283fd
Reviewed-by: John Baldwin <jhb@FreeBSD.org>
2023-12-14 16:04:49 +00:00
..
aarch32.c
aarch32.h
aarch64-insn.c
aarch64-insn.h
aarch64-mte-linux.c
aarch64-mte-linux.h
aarch64-scalable-linux.c
aarch64-scalable-linux.h
aarch64.c
aarch64.h
amd64.c
amd64.h
arc.c
arc.h
arm-get-next-pcs.c
arm-get-next-pcs.h
arm-linux.c
arm-linux.h
arm.c
arm.h
csky.c
csky.h
i386.c
i386.h
loongarch.c
loongarch.h
ppc-linux-common.c
ppc-linux-common.h
ppc-linux-tdesc.h
riscv.c
riscv.h
tic6x.c
tic6x.h
xtensa.h