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77 lines
2.6 KiB
Text
77 lines
2.6 KiB
Text
# Defines compiled_action().
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#
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# compiled_action() is like action(), except that it runs a built binary
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# instead of a script.
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#
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# Parameters:
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#
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# tool (required)
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# [label] Label of the tool to run. This should be an executable, and
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# this label should not include a toolchain (anything in parens). This
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# tool will be built for the host.
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#
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# outputs (required)
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# [list of files] Same meaning as for action().
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#
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# args (required)
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# [list of strings] Flags to pass to the built binary. Almost identical
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# to action()'s `args`, except that `tool` is implicitly added as first
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# element.
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#
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# depfile
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# inputs
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# public_configs
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# visibility (all optional)
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# Same meaning as for action().
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#
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# Example use:
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#
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# compiled_action("run_my_tool") {
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# tool = "//tools/something:mytool"
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# inputs = [ "my_input_file.txt" ]
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# outputs = [ "$target_gen_dir/mysource.inc" ]
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# args = [
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# rebase_path(inputs[0], root_build_dir),
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# rebase_path(outputs[0], root_build_dir),
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# ]
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# }
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#
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# You would typically declare your tool like this:
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# if (host_toolchain == current_toolchain) {
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# executable("mytool") {
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# ...
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# }
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# }
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# The if statement around the executable is optional. It means "I only care
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# about this target in the host toolchain". Usually this is what you want, and
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# saves unnecessarily compiling your tool for the target platform. If you
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# need a target build of your tool as well, omit the if statement.
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template("compiled_action") {
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assert(defined(invoker.args), "must set 'args' in $target_name")
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assert(defined(invoker.outputs), "must set 'outputs' in $target_name")
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assert(defined(invoker.tool), "must set 'tool' in $target_name")
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assert(!defined(invoker.sources),
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"use 'inputs' instead of 'sources' in $target_name")
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action(target_name) {
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forward_variables_from(invoker,
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[
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"depfile",
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"inputs",
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"outputs",
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"public_configs",
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"testonly",
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"visibility",
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])
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host_tool = invoker.tool + "($host_toolchain)"
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host_executable = get_label_info(host_tool, "root_out_dir") + "/bin/" +
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get_label_info(host_tool, "name")
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deps = [ host_tool ]
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if (defined(invoker.deps)) {
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deps += invoker.deps
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}
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script = "//Meta/gn/build/run_compiled_binary.py"
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args = [ rebase_path(host_executable, root_build_dir) ] + invoker.args
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}
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}
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