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| author | Simon Marchi <simon.marchi@efficios.com> | 2023-12-01 11:27:15 -0500 |
|---|---|---|
| committer | Simon Marchi <simon.marchi@efficios.com> | 2023-12-14 16:04:49 +0000 |
| commit | e4e20d45110d919a5a2da2db84806f315ab59d90 (patch) | |
| tree | c153a7c86e48bbb61850d2dd0f230bef3ba8e9ae /gdb/arch/arm.h | |
| parent | c3a03de70fd373c0f8fc4ba5df1c0db29445112c (diff) | |
| download | gdb-e4e20d45110d919a5a2da2db84806f315ab59d90.zip gdb-e4e20d45110d919a5a2da2db84806f315ab59d90.tar.gz gdb-e4e20d45110d919a5a2da2db84806f315ab59d90.tar.bz2 | |
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>
Diffstat (limited to 'gdb/arch/arm.h')
| -rw-r--r-- | gdb/arch/arm.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/gdb/arch/arm.h b/gdb/arch/arm.h index c64a156..b6c3161 100644 --- a/gdb/arch/arm.h +++ b/gdb/arch/arm.h @@ -188,7 +188,7 @@ enum system_register_address : CORE_ADDR ((CORE_ADDR) (((unsigned long) (addr)) + 8 + (sbits (instr, 0, 23) << 2))) /* Forward declaration. */ -struct regcache; +struct reg_buffer_common; /* Return the size in bytes of the complete Thumb instruction whose first halfword is INST1. */ @@ -213,7 +213,7 @@ int thumb_advance_itstate (unsigned int itstate); /* Decode shifted register value. */ -unsigned long shifted_reg_val (struct regcache *regcache, +unsigned long shifted_reg_val (reg_buffer_common *regcache, unsigned long inst, int carry, unsigned long pc_val, |