Though commands like "west flash -h" now have help for generic runner
configuration options, runner-specific context is not printed.
In order to print this information, we would ideally want to know the
currently available runners from a build directory. Otherwise, we
can't print the current cached configuration, and the user will likely
be overwhelmed by a giant list of options etc. available for all the
runners in the package.
However, we can't print that information out without re-doing the
build, which is not safe to do when the user just gives '--help'.
To provide more complete help without causing side effects in the
default help output, add a new -H/--context option, which explicitly
re-runs the build (unless --skip-rebuild was given), parses the cache,
and prints context-sensitive help. This can be combined with the -r
option to restrict help to a particular runner.
Examples:
- Print context for all available flash runners:
west flash -H --build-dir build-frdm_k64f/
- Print context for just one runner:
west flash -H --build-dir build-frdm_k64f/ -r jlink
- Print context for all available debug runners, if current
working directory is a build directory:
west debug -H
If no context is available because there is no CMake cache file, this
command can still be used to obtain generic information about
runners. It emits a warning in this case.
Signed-off-by: Marti Bolivar <marti@opensourcefoundries.com>
Add the build directory to the central runner configuration.
This is commonly useful information.
The first place we can use it is to eliminate guessing the current
working directory when building objects to parse .config.
It's not necessary to modify the build system for this, so leave the
relevant command line flag among the general options.
Signed-off-by: Marti Bolivar <marti@opensourcefoundries.com>
Continue better integration of the runner subpackage into west by
moving the common runner configuration options into the command
core. This allows commands like "west flash -h" to display help for
common overrides like --kernel-hex.
Adjustments needed to make this happen are:
- Change the build system to separate common configuration values from
runner-specific options and arguments
- Prepare the runner core by defining a new RunnerConfig class that
represents the common configuration, and accepting that from a new
create() method, which replaces create_from_args().
- Convert all concrete runner classes to use the new style of
argument parsing and initialization.
- Group the command options appropriately for help output readability
There's still a bit of tool-specific stuff in the common
configuration (gdb and openocd configuration in particular); a more
generic way to deal with that will be necessary to better support
things like non-GDB debuggers, but that's out of scope of this patch.
All the runner-specific options are still in the runner packge, which
currently prevents them from being included in "west flash -h" etc.
Fixing that is also out of scope of this patch.
This has the ancillary benefit of getting rid of the legacy 'debug'
argument to ZephyrBinaryRunner, which is no longer appropriate since
verbose debug logging is handled by log.py in west.
Signed-off-by: Marti Bolivar <marti@opensourcefoundries.com>
This is redundant information. The command is already known from the
top-level west command line. We can just feed it to run without
inserting it on the command line as well, which is safe to do now that
zephyr_flash_debug.py is gone.
Signed-off-by: Marti Bolivar <marti@opensourcefoundries.com>
When run without any arguments, the commands work the same way that
their CMake equivalents do. For example, if using the Ninja CMake
generator, these are equivalent:
west flash <----> ninja flash
west debug <----> ninja debug
west debugserver <----> ninja debugserver
Like CMake's build tool mode, you can also run them from any directory
in the system by passing the path to the build directory using
--build-dir (-d):
west flash -d build/my-board
The commands will run the CMake-generated build system, so they keep
dependencies up to date and users don't have to manually compile
binaries between running CMake and using this tool.
The commands also support important use cases that CMake can't:
1) Any arguments not handled by 'west flash' et al. are passed to the
underlying runner. For example, if the runner supports --gdb-port,
the default can be overridden like so:
west debugserver --gdb-port=1234
Command processing by the 'west' command can also be halted using
'--'; anything after that point (even if it's an option recognized
by the west command) will be passed to the runner. Example:
west debug -- --this-option-goes-to-the-debug-runner=foo
2) Any runner supported by the board can be selected at runtime using
the -r (--runner) option. For example, if the board's flash runner
defaults to nrfjprog but jlink is supported as well, it can be
selected with:
west flash -r jlink
3) The runner configuration can be persisted elsewhere, edited
offline, and selected at runtime, using --cmake-cache (-c):
west flash -c /home/me/some/other/CMakeCache.txt
Signed-off-by: Marti Bolivar <marti@opensourcefoundries.com>
Marti Bolivar