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Luis Machado 48136e006e New memory-tag commands 
Add new commands under the "memory-tag" prefix to allow users to inspect,
modify and check memory tags in different ways.

The available subcommands are the following:

- memory-tag print-logical-tag <expression>: Prints the logical tag for a
  particular address.

- memory-tag withltag <expression> <tag>: Prints the address tagged with the
  logical tag <tag>.

- memory-tag print-allocation-tag <expression>: Prints the allocation tag for
  a particular address.

- memory-tag setatag <expression> <length> <tags>: Sets one or more allocation
  tags to the specified tags.

- memory-tag check <expression>: Checks if the logical tag in <address>
  matches its allocation tag.

These commands make use of the memory tagging gdbarch methods, and are still
available, but disabled, when memory tagging is not supported by the
architecture.

I've pondered about a way to make these commands invisible when memory tagging
is not available, but given the check is at runtime (and support may come and go
based on a process' configuration), that is a bit too late in the process to
either not include the commands or get rid of them.

Ideas are welcome.

gdb/ChangeLog:

2021-03-24  Luis Machado  <luis.machado@linaro.org>

	* printcmd.c: Include gdbsupport/rsp-low.h.
	(memory_tag_list): New static global.
	(process_print_command_args): Factored out of
	print_command_1.
	(print_command_1): Use process_print_command_args.
	(show_addr_not_tagged, show_memory_tagging_unsupported)
	(memory_tag_command, memory_tag_print_tag_command)
	(memory_tag_print_logical_tag_command)
	(memory_tag_print_allocation_tag_command, parse_with_logical_tag_input)
	(memory_tag_with_logical_tag_command, parse_set_allocation_tag_input)
	(memory_tag_set_allocation_tag_command, memory_tag_check_command): New
	functions.
	(_initialize_printcmd): Add "memory-tag" prefix and subcommands.

gdbsupport/ChangeLog:

2021-03-24  Luis Machado  <luis.machado@linaro.org>

	* rsp-low.cc (fromhex, hex2bin): Move to ...
	* common-utils.cc: ... here.
	(fromhex) Change error message text to not be RSP-specific.
	* rsp-low.h (fromhex, hex2bin): Move to ...
	* common-utils.h: ... here.
2021-03-24 14:57:53 -03:00
..
.dir-locals.el Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
.gitattributes gdb, gdbserver, gdbsupport: add .gitattributes files 2020-03-05 15:59:22 +01:00
acinclude.m4 gdb: move ptrace.m4 to gdbsupport 2020-10-25 21:08:49 -04:00
aclocal.m4 gdb: use AC_PROG_CC_STDC instead of AM_PROG_CC_STDC 2020-10-31 08:30:57 -04:00
agent.cc Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
agent.h Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
alt-stack.h Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
array-view.h Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
ax.def Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
block-signals.h Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
break-common.h Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
btrace-common.cc Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
btrace-common.h Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
buffer.cc Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
buffer.h Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
byte-vector.h Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
ChangeLog New memory-tag commands 2021-03-24 14:57:53 -03:00
check-defines.el Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
cleanups.cc Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
cleanups.h Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
common-debug.cc gdb: add remote_debug_printf 2021-01-22 12:43:27 -05:00
common-debug.h gdb: add remote_debug_printf 2021-01-22 12:43:27 -05:00
common-defs.h gnulib: update to 776af40e0 2021-02-05 13:35:20 -05:00
common-exceptions.cc Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
common-exceptions.h Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
common-gdbthread.h Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
common-inferior.cc Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
common-inferior.h Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
common-regcache.cc Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
common-regcache.h Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
common-types.h Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
common-utils.cc New memory-tag commands 2021-03-24 14:57:53 -03:00
common-utils.h New memory-tag commands 2021-03-24 14:57:53 -03:00
common.m4 Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
config.in Require kinfo_get_file and kinfo_get_vmmap for FreeBSD hosts. 2020-09-16 11:40:05 -07:00
configure gdbsupport: replace AC_TRY_COMPILE in common.m4 2020-10-31 08:31:00 -04:00
configure.ac Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
create-version.sh Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
def-vector.h Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
default-init-alloc.h Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
eintr.h Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
enum-flags.h Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
environ.cc Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
environ.h Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
errors.cc Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
errors.h Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
event-loop.cc Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
event-loop.h Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
fileio.cc Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
fileio.h Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
filestuff.cc Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
filestuff.h Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
filtered-iterator.h Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
format.cc Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
format.h Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
forward-scope-exit.h Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
function-view.h Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
gdb_assert.h Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
gdb_binary_search.h Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
gdb_locale.h Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
gdb_optional.h Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
gdb_proc_service.h Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
gdb_ref_ptr.h Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
gdb_select.h Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
gdb_setjmp.h Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
gdb_signals.h Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
gdb_splay_tree.h Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
gdb_string_view.h Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
gdb_string_view.tcc Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
gdb_sys_time.h Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
gdb_tilde_expand.cc Improve gdb_tilde_expand logic. 2021-01-23 17:17:38 +00:00
gdb_tilde_expand.h Improve gdb_tilde_expand logic. 2021-01-23 17:17:38 +00:00
gdb_unique_ptr.h Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
gdb_unlinker.h Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
gdb_vecs.cc Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
gdb_vecs.h Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
gdb_wait.cc Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
gdb_wait.h Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
gdb-dlfcn.cc Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
gdb-dlfcn.h Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
gdb-safe-ctype.h Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
gdb-sigmask.h Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
hash_enum.h Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
host-defs.h Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
job-control.cc Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
job-control.h Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
Makefile.am Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
Makefile.in Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
netstuff.cc Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
netstuff.h Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
new-op.cc Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
next-iterator.h Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
observable.h Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
offset-type.h Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
parallel-for.h Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
pathstuff.cc gdb: check for empty strings in get_standard_cache_dir/get_standard_config_dir 2021-01-08 13:46:56 -05:00
pathstuff.h Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
poison.h Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
preprocessor.h Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
print-utils.cc Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
print-utils.h Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
ptid.cc Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
ptid.h Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
ptrace.m4 Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
README
refcounted-object.h Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
rsp-low.cc New memory-tag commands 2021-03-24 14:57:53 -03:00
rsp-low.h New memory-tag commands 2021-03-24 14:57:53 -03:00
run-time-clock.cc Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
run-time-clock.h Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
safe-iterator.h Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
safe-strerror.cc Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
scope-exit.h Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
scoped_fd.h Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
scoped_mmap.cc Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
scoped_mmap.h Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
scoped_restore.h Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
search.cc Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
search.h Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
selftest.cc Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
selftest.h Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
selftest.m4 Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
signals-state-save-restore.cc Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
signals-state-save-restore.h Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
signals.cc Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
symbol.h Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
tdesc.cc Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
tdesc.h Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
thread-pool.cc Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
thread-pool.h Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
traits.h Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
underlying.h Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
valid-expr.h Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
version.h Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
warning.m4 Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
x86-xstate.h Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
xml-utils.cc Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00
xml-utils.h Update copyright year range in all GDB files 2021-01-01 12:12:21 +04:00

README 

This is a helper library that is used by gdb and gdbserver.

To send patches, follow the gdb patch submission instructions in
../gdb/CONTRIBUTE.  For maintainers, see ../gdb/MAINTAINERS.