| # Copyright 2019 The Fuchsia Authors. All rights reserved. |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| |
| declare_args() { |
| # Whether to only warn when an SDK has been modified. |
| # If false, any unacknowledged SDK change will cause a build failure. |
| warn_on_sdk_changes = false |
| |
| # Whether currently building a sub-build (vs. the main build). |
| # Can be true for any API level, including the default level. |
| sdk_inside_sub_build = false |
| |
| # An upper bound on the maximum number of subbuilds that may be running at the |
| # same time. A larger number means these good things: |
| # - Better parallelization of the inherently single-threaded parts of GN and |
| # ninja. |
| # - Better parallelization in the face of "stragglers" in the build - |
| # situations where each subbuild is executing a small number of actions. |
| # |
| # But also these bad things: |
| # - More memory usage, potentially leading to swapping and slowdowns. |
| # - More CPU contention when the build process is actually CPU-bound. |
| # - Potentially forcing a lower value of `sdk_sub_build_parallelism`, since |
| # the total load is proportional to `sdk_max_simultaneous_sub_builds * |
| # sdk_sub_build_parallelism`. |
| # |
| # 5 was chosen mostly because it's the number of fingers on each of my hands. |
| sdk_max_simultaneous_sub_builds = 5 |
| |
| # Value of `-j` to pass to ninja during a subbuild. Note that up to |
| # `sdk_max_simultaneous_sub_builds` subbuilds may be happening in parallel, so |
| # the number of concurrent actions may go as high as this number times the |
| # number of concurrent subbuilds. If left blank, the subbuild script will make |
| # a guess. |
| sdk_sub_build_parallelism = "" |
| |
| # Value of `-l` to pass to ninja during a subbuild. If the system load average |
| # on the system goes beyond this value, ninja will throttle itself. If left |
| # blank, the subbuild script will make a guess. |
| sdk_sub_build_max_load_average = "" |
| |
| # Set to `true` to enable verbose logging during IDK subbuilds. |
| sdk_sub_build_verbose = false |
| } |
| |
| # The list of all cpu architectures for the prebuild fuchsia binaries that go |
| # into the IDK archive. |
| idk_target_cpus = [ |
| "arm64", |
| "riscv64", |
| "x64", |
| ] |