zircon/kernel/kernel_shell_script.gni

# Copyright 2023 The Fuchsia Authors
#
# Use of this source code is governed by a MIT-style
# license that can be found in the LICENSE file or at
# https://opensource.org/licenses/MIT

import("//build/testing/boot_tests/zbi_test.gni")
import("//build/zbi/kernel_cmdline.gni")

# Define a ZBI input to set the kernel.shell.script option.
#
# This is a shorthand to define a kernel_cmdline() target whose contents
# are "kernel.shell.script=..." with the "..." being constructed from
# the parameter.
#
# Parameters
#
#   * script
#     - Required: This is a list of strings, each a kernel shell command line.
#     These are combined by putting `;` between the lines and replacing each
#     space with `+` as expected for the `kernel.shell.script` boot option.
#     - Type: list(string)
#
#   * deps, visibility, testonly
#     - Optional: See kernel_cmdline().
#
template("kernel_shell_script") {
  kernel_cmdline(target_name) {
    forward_variables_from(invoker,
                           [
                             "deps",
                             "visibility",
                             "testonly",
                           ])

    args = [ "kernel.shell.script=" +
             string_replace(string_join(";", invoker.script), " ", "+") ]
  }
}

# Define a zbi_test() that runs a kernel shell script.
#
# This is a simple wrapper around zbi_test() and kernel_shell_script().  It
# defines a $target_name zbi_test() target that uses a $target_name.script
# kernel_shell_script() target.
#
# Parameters
#
#   * deps
#     - Optional: As for zbi_test(). By default it will include the standard
#     kernel ZBI, but if overriden the kernel ZBI must be listed explicitly.
#     - Type: list(label)
#     - Default: [ ":kernel(:kernel_$current_cpu)" ]
#
#   * script
#     - Required: This is a list of strings, each a kernel shell command line.
#     These are combined by putting `;` between the lines and replacing each
#     space with `+` as expected for the `kernel.shell.script` boot option.
#     - Type: list(string)
#
#   * deps, visibility, device_types
#     - Optional: See zbi_test().
#
template("kernel_shell_script_test") {
  main_target = target_name
  script_target = "$target_name.script"

  zbi_test(main_target) {
    forward_variables_from(invoker,
                           [
                             "device_types",
                             "visibility",
                           ])

    if (defined(invoker.deps)) {
      deps = invoker.deps
    } else {
      deps = [ ":kernel(:kernel_$current_cpu)" ]
    }

    deps += [ ":$script_target" ]
  }

  kernel_shell_script(script_target) {
    testonly = true
    forward_variables_from(invoker,
                           [
                             "script",
                             "visibility",
                           ])
    if (defined(visibility)) {
      visibility += [ ":*" ]
    }
  }
}